/* =============================================================
   LETESH — standalone language-learning app (purple/indigo accent)
   Fully self-contained; does NOT depend on the portfolio stylesheet.
============================================================= */

:root {
  --la-bg:        #0a0e1a;
  --la-surface:   #131a2e;
  --la-surface2:  #1b2440;
  --la-border:    #2c3553;
  --la-text:      #e9ecf5;
  --la-muted:     #98a0b8;
  --la-accent:    #a78bfa;
  --la-accent2:   #c4b5fd;
  --la-accent-dim:#7c6cd6;
  --la-accent-glow: rgba(167, 139, 250, 0.18);
  --la-success:   #34d399;
  --la-warning:   #fbbf24;
  --la-danger:    #fb7185;
  --la-info:      #60a5fa;
  --font: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--la-bg);
  color: var(--la-text);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--la-accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* =============================================================
   APP TOP BAR (replaces portfolio nav)
============================================================= */
.app-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--la-border);
}
.app-bar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.app-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: var(--la-text);
  transition: opacity 0.15s;
}
.app-brand:hover { opacity: 0.85; text-decoration: none; }
.brand-mark {
  font-size: 1.4rem;
  line-height: 1;
  filter: drop-shadow(0 0 12px rgba(167,139,250,0.4));
}
.brand-name {
  font-family: var(--font);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--la-accent) 0%, var(--la-accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.brand-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--la-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 3px 8px;
  border: 1px solid var(--la-border);
  border-radius: 4px;
}
@media (max-width: 540px) { .brand-tag { display: none; } }

.app-bar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Header auth buttons */
.auth-buttons {
  display: flex;
  align-items: center;
  gap: 6px;
}
/* HTML `hidden` attribute would normally set display:none via UA stylesheet,
   but our explicit display:flex overrides it. Be explicit. */
.auth-buttons[hidden],
.user-menu[hidden] { display: none !important; }
.header-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  border: 1px solid transparent;
}
.header-btn-ghost {
  background: transparent;
  color: var(--la-text);
  border-color: var(--la-border);
}
.header-btn-ghost:hover { border-color: var(--la-accent); background: var(--la-accent-glow); }
.header-btn-primary {
  background: linear-gradient(180deg, var(--la-accent) 0%, var(--la-accent-dim) 100%);
  color: #1a1430;
  border-color: transparent;
  box-shadow: 0 4px 14px var(--la-accent-glow);
}
.header-btn-primary:hover { filter: brightness(1.08); }
@media (max-width: 540px) {
  .header-btn-ghost { display: none; }
  .header-btn { padding: 7px 12px; font-size: 0.8rem; }
}

/* User menu (when signed in) */
.user-menu { position: relative; }
.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 22px;
  padding: 4px 10px 4px 4px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  max-width: 220px;
}
.user-chip:hover { border-color: var(--la-accent); background: var(--la-accent-glow); }
.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--la-accent) 0%, var(--la-accent-dim) 100%);
  color: #1a1430;
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.user-email {
  font-family: var(--font);
  font-size: 0.82rem;
  color: var(--la-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}
.user-caret {
  font-size: 0.7rem;
  color: var(--la-muted);
  transition: transform 0.2s;
}
.user-chip[aria-expanded="true"] .user-caret { transform: rotate(180deg); }
@media (max-width: 600px) {
  .user-email { display: none; }
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  list-style: none;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 5px;
  min-width: 180px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.5);
  z-index: 200;
}
.user-dropdown[hidden] { display: none; }
.user-dropdown li { list-style: none; }
.user-dropdown li a,
.user-dropdown li button {
  width: 100%;
  display: block;
  background: transparent;
  border: none;
  color: var(--la-text);
  font-family: var(--font);
  font-size: 0.88rem;
  padding: 9px 12px;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  transition: background 0.15s;
}
.user-dropdown li a:hover,
.user-dropdown li button:hover { background: var(--la-accent-glow); text-decoration: none; }
.user-dropdown li button { color: var(--la-danger); }

/* =============================================================
   LANGUAGE SWITCHER (self-contained, no longer inherited from portfolio)
============================================================= */
.lang-switcher { position: relative; }

.lang-current {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 8px;
  color: var(--la-text);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 7px 11px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.lang-current:hover { border-color: var(--la-accent); background: var(--la-accent-glow); }
.lang-current[aria-expanded="true"] { border-color: var(--la-accent); background: var(--la-accent-glow); }

.lang-flag {
  width: 22px;
  height: 15px;
  display: inline-block;
  border-radius: 2px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08);
}
.lang-flag svg { width: 100%; height: 100%; display: block; }

.lang-code { letter-spacing: 0.5px; }
.lang-caret {
  font-size: 0.7rem;
  color: var(--la-muted);
  transition: transform 0.2s;
}
.lang-current[aria-expanded="true"] .lang-caret { transform: rotate(180deg); }

.lang-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  list-style: none;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 5px;
  min-width: 180px;
  box-shadow: 0 10px 28px rgba(0,0,0,0.5);
  z-index: 200;
}
.lang-menu[hidden] { display: none; }
.lang-menu li button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: none;
  color: var(--la-text);
  font-family: var(--font);
  font-size: 0.88rem;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}
.lang-menu li button:hover { background: var(--la-accent-glow); }
.lang-menu li[aria-selected="true"] button {
  background: var(--la-accent-glow); color: var(--la-accent2); font-weight: 600;
}

/* =============================================================
   FOOTER
============================================================= */
.app-footer {
  margin-top: auto;
  padding: 28px 0 36px;
  border-top: 1px solid var(--la-border);
  background: linear-gradient(180deg, var(--la-bg) 0%, var(--la-surface) 100%);
}
.app-footer .container {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.app-footer .footer-brand {
  font-size: 0.92rem;
  color: var(--la-text);
}
.app-footer .footer-brand strong {
  background: linear-gradient(135deg, var(--la-accent) 0%, var(--la-accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}
.app-footer .footer-meta {
  font-size: 0.78rem;
  color: var(--la-muted);
  font-family: var(--mono);
}
.app-footer .footer-meta a { color: var(--la-accent2); }

/* Subtle starfield-like background gradient */
.app-section {
  flex: 1;
  padding: 40px 0 80px;
  background:
    radial-gradient(ellipse 60% 40% at 80% 0%, rgba(167,139,250,0.08), transparent 60%),
    radial-gradient(ellipse 50% 35% at 10% 90%, rgba(96,165,250,0.06), transparent 60%),
    var(--la-bg);
}

.app-section .container { max-width: 1080px; }

.app-section h1, .app-section h2, .app-section h3 { color: var(--la-text); }
.app-section p, .app-section .muted-msg { color: var(--la-muted); }
.app-section .breadcrumbs { color: var(--la-muted); margin-bottom: 14px; }
.app-section .breadcrumbs a { color: var(--la-muted); }
.app-section .breadcrumbs a:hover { color: var(--la-accent); }

.app-breadcrumbs {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--la-muted);
  margin-bottom: 18px;
  letter-spacing: 0.3px;
}
.app-breadcrumbs a { color: var(--la-muted); }
.app-breadcrumbs a:hover { color: var(--la-accent); }
.app-breadcrumbs .sep { margin: 0 8px; opacity: 0.5; }

/* Tabs */
.app-tabs {
  display: inline-flex;
  gap: 4px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 5px;
  margin-top: 22px;
  margin-bottom: 6px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}
.app-tab {
  background: transparent;
  border: none;
  color: var(--la-muted);
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 9px 22px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.app-tab:hover { color: var(--la-text); }
.app-tab.active {
  background: var(--la-accent);
  color: #1a1430;
  box-shadow: 0 0 16px var(--la-accent-glow);
}

.app-content { margin-top: 24px; min-height: 480px; }
.app-loading { color: var(--la-muted); }
.muted-msg { color: var(--la-muted); }

/* Stats banner */
.stats-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}
.stat-box {
  background: linear-gradient(180deg, var(--la-surface) 0%, var(--la-surface2) 100%);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 20px 18px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.stat-num {
  font-family: var(--mono);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--la-accent2);
  line-height: 1;
}
.stat-num.due { color: var(--la-warning); }
.stat-num.streak { color: var(--la-danger); }
.stat-num.learned { color: var(--la-success); }
.stat-lbl {
  font-size: 0.7rem;
  color: var(--la-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 6px;
}
@media (max-width: 600px) { .stats-banner { grid-template-columns: repeat(2, 1fr); } }

/* Deck grid */
.deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.deck-card {
  position: relative;
  background: linear-gradient(180deg, var(--la-surface) 0%, var(--la-surface2) 100%);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 20px 22px 18px 26px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, border-color 0.2s, box-shadow 0.2s;
  display: block;
  overflow: hidden;
}
.deck-card:hover {
  border-color: var(--la-accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px var(--la-accent-glow);
  text-decoration: none;
}
.deck-card-bar {
  position: absolute; top: 0; left: 0; bottom: 0; width: 5px;
  background: var(--la-accent);
  border-radius: 14px 0 0 14px;
}
.deck-card h3 { font-size: 1.02rem; font-weight: 600; margin-bottom: 5px; color: var(--la-text); }
.deck-card .deck-desc { font-size: 0.86rem; color: var(--la-muted); line-height: 1.5; margin-bottom: 12px; }
.deck-card .deck-meta {
  display: flex; gap: 14px;
  font-family: var(--mono); font-size: 0.74rem;
  color: var(--la-muted); flex-wrap: wrap;
}
.deck-card .deck-meta .due { color: var(--la-warning); }
.deck-card .deck-meta .new { color: var(--la-accent2); }

/* Core vocabulary packs (obecná norština A1–B2) */
.core-packs { margin-top: 42px; }
.core-packs-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; color: var(--la-text); }
.core-packs .section-lede { margin-bottom: 16px; }
.core-pack-card { cursor: default; }
.core-pack-card:hover { transform: none; box-shadow: none; border-color: var(--la-border); }
.core-pack-card .deck-meta { align-items: center; justify-content: space-between; }
.core-pack-installed { color: var(--la-accent2); font-weight: 600; }

/* Bokmål poznámka */
.bokmaal-note {
  margin: 6px 0 18px; padding: 10px 14px;
  border: 1px solid var(--la-border); border-left: 3px solid var(--la-accent);
  border-radius: 8px; background: var(--la-surface);
  color: var(--la-muted); font-size: 0.88rem; line-height: 1.5;
}

/* Deck detail header */
.deck-detail-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 28px; flex-wrap: wrap;
}
.deck-detail-head .info h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 4px; }
.deck-detail-head .info p { color: var(--la-muted); font-size: 0.92rem; }
.deck-detail-head .actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Buttons */
.btn-app {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; border: none; border-radius: 10px;
  font-family: var(--font); font-size: 0.9rem; font-weight: 600;
  cursor: pointer; text-decoration: none; color: inherit;
  transition: background 0.15s, opacity 0.15s, transform 0.1s, border-color 0.15s;
}
.btn-app:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-app:active:not(:disabled) { transform: translateY(1px); }
.btn-app-primary {
  background: linear-gradient(180deg, var(--la-accent) 0%, var(--la-accent-dim) 100%);
  color: #1a1430;
  box-shadow: 0 4px 14px var(--la-accent-glow);
}
.btn-app-primary:hover:not(:disabled) { filter: brightness(1.1); text-decoration: none; }
.btn-app-outline {
  background: transparent; color: var(--la-text); border: 1px solid var(--la-border);
}
.btn-app-outline:hover:not(:disabled) {
  border-color: var(--la-accent); background: var(--la-accent-glow); text-decoration: none;
}
.btn-app-ghost {
  background: transparent; color: var(--la-muted); border: 1px solid transparent;
}
.btn-app-ghost:hover:not(:disabled) { color: var(--la-text); background: var(--la-surface); }
.btn-app-danger { background: #be3a3a; color: #fff; }
.btn-app-danger:hover:not(:disabled) { background: #d54d4d; }
.btn-app .big-btn, .big-btn { padding: 14px 30px; font-size: 1rem; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

/* Card list */
.card-search {
  width: 100%;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 11px 16px;
  color: var(--la-text);
  font-family: var(--font); font-size: 0.92rem;
  margin-bottom: 14px;
}
.card-search:focus { outline: none; border-color: var(--la-accent); box-shadow: 0 0 0 3px var(--la-accent-glow); }

.card-list {
  display: flex; flex-direction: column; gap: 6px;
}
.card-row {
  display: grid; grid-template-columns: 1.4fr 1.2fr auto auto;
  gap: 14px; align-items: center;
  background: var(--la-surface); border: 1px solid var(--la-border);
  border-radius: 10px; padding: 11px 16px;
  font-size: 0.92rem;
}
.card-row .en { font-weight: 600; color: var(--la-text); }
.card-row .cs { color: var(--la-muted); }
.card-row .badge {
  font-family: var(--mono); font-size: 0.7rem;
  padding: 3px 8px; border-radius: 5px; border: 1px solid var(--la-border);
  color: var(--la-muted); letter-spacing: 0.4px;
}
.card-row .badge.due { color: var(--la-warning); border-color: var(--la-warning); background: rgba(251,191,36,0.08); }
.card-row .badge.new { color: var(--la-accent2); border-color: var(--la-accent); background: var(--la-accent-glow); }
.card-row .row-actions { display: flex; gap: 4px; }
.card-row .icon-btn {
  background: transparent; border: none; color: var(--la-muted);
  cursor: pointer; padding: 5px 7px; border-radius: 5px;
  font-size: 1rem; transition: color 0.15s, background 0.15s;
}
.card-row .icon-btn:hover { color: var(--la-text); background: var(--la-surface2); }
.card-row .icon-btn.danger:hover { color: var(--la-danger); }
@media (max-width: 600px) {
  .card-row { grid-template-columns: 1fr auto; gap: 8px; }
  .card-row .cs, .card-row .badge { display: none; }
}

/* =============================================================
   SESSION CONFIG (pick exercise + direction before study)
============================================================= */
.session-config-wrap { max-width: 760px; margin: 0 auto; }
.session-config-body { animation: fadeUp 0.2s ease; }
.config-title { font-size: 1.6rem; font-weight: 700; margin-bottom: 6px; }
.config-sub { color: var(--la-muted); margin-bottom: 28px; }
.config-section {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--la-muted);
  margin-bottom: 14px;
  font-weight: 600;
}

.ex-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 36px;
}
.ex-card {
  background: var(--la-surface);
  border: 2px solid var(--la-border);
  border-radius: 14px;
  padding: 18px 16px 14px;
  cursor: pointer;
  text-align: left;
  font-family: var(--font);
  color: var(--la-text);
  transition: all 0.15s;
}
.ex-card:hover { border-color: var(--la-accent); transform: translateY(-2px); }
.ex-card.selected {
  border-color: var(--la-accent);
  background: var(--la-accent-glow);
  box-shadow: 0 0 0 4px rgba(167,139,250,0.15), 0 8px 24px var(--la-accent-glow);
}
.ex-icon { font-size: 1.7rem; margin-bottom: 8px; }
.ex-name { font-weight: 600; font-size: 1rem; margin-bottom: 4px; }
.ex-desc { font-size: 0.82rem; color: var(--la-muted); line-height: 1.45; }

.dir-row {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 36px;
}
.dir-pill {
  background: var(--la-surface); border: 2px solid var(--la-border);
  color: var(--la-text); font-family: var(--font); font-size: 0.9rem;
  padding: 10px 20px; border-radius: 24px; cursor: pointer;
  transition: all 0.15s;
}
.dir-pill:hover { border-color: var(--la-accent); }
.dir-pill.selected {
  border-color: var(--la-accent); background: var(--la-accent-glow);
  color: var(--la-accent2); font-weight: 600;
}

.session-config-actions {
  display: flex; gap: 10px; justify-content: flex-end; margin-top: 12px;
}

/* =============================================================
   STUDY SCREEN
============================================================= */
.study-wrap { max-width: 640px; margin: 0 auto; }

.study-header { margin-bottom: 24px; }
.study-progress-bar {
  height: 6px; background: var(--la-surface);
  border-radius: 3px; overflow: hidden;
  margin-bottom: 10px;
}
.study-progress-bar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--la-accent) 0%, var(--la-accent2) 100%);
  transition: width 0.3s ease;
}
.study-meta {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  font-family: var(--mono); font-size: 0.78rem; color: var(--la-muted);
}
.ex-pill {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  padding: 3px 10px; border-radius: 12px;
  color: var(--la-accent2);
}
.dir-pill-mini {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  padding: 3px 10px; border-radius: 12px;
}
.progress-num { margin-left: auto; }

.flashcard {
  background: linear-gradient(180deg, var(--la-surface) 0%, var(--la-surface2) 100%);
  border: 1px solid var(--la-border);
  border-radius: 18px;
  padding: 44px 28px;
  margin-bottom: 16px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.35);
  animation: fadeUp 0.25s ease;
}
.flashcard.front-block { text-align: center; }
.flashcard.answer-block { text-align: center; padding: 32px 28px; }
.flashcard .word {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  word-wrap: break-word;
  line-height: 1.2;
}
.flashcard .pron {
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--la-muted);
  margin-bottom: 6px;
}
.flashcard .answer {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--la-accent2);
  margin-bottom: 12px;
  word-wrap: break-word;
}
.flashcard .hint {
  font-size: 0.92rem;
  color: var(--la-muted);
  font-style: italic;
  margin-top: 10px;
}
.flashcard .examples {
  text-align: left;
  font-size: 0.88rem;
  color: var(--la-muted);
  background: var(--la-bg);
  border-left: 3px solid var(--la-accent);
  padding: 12px 16px;
  border-radius: 6px;
  margin-top: 16px;
}
.flashcard .examples div { margin-bottom: 4px; }

.audio-btn {
  background: transparent;
  border: 1.5px solid var(--la-border);
  color: var(--la-muted);
  border-radius: 50%;
  width: 42px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1.05rem; margin-left: 14px;
  vertical-align: middle;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.audio-btn:hover {
  color: var(--la-accent2); border-color: var(--la-accent);
  background: var(--la-accent-glow);
}

.study-actions {
  display: flex; gap: 10px; justify-content: center;
  flex-wrap: wrap; margin-top: 20px;
}
.study-actions.grades { gap: 8px; }

.grade-btn {
  flex: 1; min-width: 95px;
  padding: 14px 10px;
  border: 2px solid var(--la-border);
  border-radius: 12px;
  background: var(--la-surface);
  color: var(--la-text);
  font-family: var(--font); font-weight: 600; font-size: 0.95rem;
  cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  transition: all 0.15s;
}
.grade-btn:hover { transform: translateY(-3px); box-shadow: 0 6px 18px rgba(0,0,0,0.25); }
.grade-btn .grade-interval {
  font-family: var(--mono); font-size: 0.7rem;
  font-weight: 400; color: var(--la-muted); letter-spacing: 0.3px;
}
.grade-btn.again { border-color: var(--la-danger); color: var(--la-danger); }
.grade-btn.again:hover { background: rgba(251,113,133,0.12); }
.grade-btn.hard  { border-color: var(--la-warning); color: var(--la-warning); }
.grade-btn.hard:hover  { background: rgba(251,191,36,0.12); }
.grade-btn.good  { border-color: var(--la-success); color: var(--la-success); }
.grade-btn.good:hover  { background: rgba(52,211,153,0.12); }
.grade-btn.easy  { border-color: var(--la-accent2); color: var(--la-accent2); }
.grade-btn.easy:hover  { background: var(--la-accent-glow); }

/* Multiple-choice options */
.mc-options {
  display: grid; gap: 10px; margin-bottom: 16px;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 540px) { .mc-options { grid-template-columns: 1fr; } }
.mc-option {
  background: var(--la-surface);
  border: 2px solid var(--la-border);
  border-radius: 12px;
  padding: 16px 18px;
  font-family: var(--font); font-size: 1rem; font-weight: 500;
  color: var(--la-text);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
  word-break: break-word;
}
.mc-option:hover:not(:disabled) {
  border-color: var(--la-accent);
  background: var(--la-accent-glow);
  transform: translateY(-1px);
}
.mc-option.correct {
  border-color: var(--la-success);
  background: rgba(52,211,153,0.16);
  color: var(--la-success);
}
.mc-option.wrong {
  border-color: var(--la-danger);
  background: rgba(251,113,133,0.16);
  color: var(--la-danger);
}

.mc-after, .type-after {
  margin-top: 18px;
  display: flex; flex-direction: column; gap: 10px; align-items: stretch;
}
.verdict {
  padding: 12px 16px; border-radius: 10px;
  font-weight: 600; font-size: 0.95rem;
}
.verdict.good { background: rgba(52,211,153,0.15); color: var(--la-success); border: 1px solid var(--la-success); }
.verdict.bad  { background: rgba(251,113,133,0.15); color: var(--la-danger); border: 1px solid var(--la-danger); }
.verdict.near { background: rgba(251,191,36,0.15); color: var(--la-warning); border: 1px solid var(--la-warning); }

/* Typing exercise */
.type-input {
  width: 100%;
  background: var(--la-surface);
  border: 2px solid var(--la-border);
  border-radius: 12px;
  padding: 14px 18px;
  color: var(--la-text);
  font-family: var(--font); font-size: 1.1rem;
  margin-bottom: 8px;
}
.type-input:focus { outline: none; border-color: var(--la-accent); box-shadow: 0 0 0 4px var(--la-accent-glow); }

/* Context (cloze) exercise */
.context-sentence {
  font-size: 1.3rem; line-height: 1.6; text-align: center;
  padding: 18px 16px 8px; color: var(--la-text);
}
.context-hint {
  text-align: center; color: var(--la-muted);
  font-size: 0.95rem; margin-bottom: 16px;
}

/* Translate exercise (NO produkce věty) — port z anglictina */
.translate-block { text-align: center; }
.translate-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--la-muted); margin-bottom: 10px; }
.translate-cs { font-size: 1.25rem; line-height: 1.55; color: var(--la-text); padding: 6px 12px 14px; font-weight: 500; }
.translate-your { font-size: 0.9rem; opacity: 0.85; margin-top: 4px; }
.listen-btn-inline { background: none; border: none; cursor: pointer; font-size: 1.15rem; margin: 6px 0; color: inherit; }

/* Extenzivní vstup (readery, rozcestník, klikací slova) — port z anglictina */
.readers-promo { display: flex; align-items: center; gap: 14px; padding: 16px 20px; margin-bottom: 22px; border: 1px solid var(--la-border); border-radius: 14px; background: linear-gradient(180deg, var(--la-surface) 0%, var(--la-surface2) 100%); text-decoration: none; color: inherit; transition: border-color 0.2s, transform 0.15s; }
.readers-promo:hover { border-color: var(--la-accent); transform: translateY(-2px); text-decoration: none; }
.readers-promo-icon { font-size: 1.9rem; }
.readers-promo-title { font-weight: 700; color: var(--la-text); }
.readers-promo-lede { font-size: 0.88rem; }
.readers-promo-arrow { margin-left: auto; color: var(--la-accent); font-size: 1.3rem; }
.reader-body { max-width: 720px; margin: 0 auto; }
.reader-chapter-head { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.reader-chapter-head h2 { margin: 0; flex: 1; }
.reader-tip { font-size: 0.82rem; margin-bottom: 14px; }
.reader-text { font-size: 1.12rem; line-height: 1.85; color: var(--la-text); }
.reader-paragraph { margin: 0 0 1.1em; }
.reader-word { cursor: pointer; border-radius: 4px; padding: 0 1px; transition: background 0.12s; }
.reader-word:hover { background: var(--la-accent-glow); }
.reader-glossary { margin: 26px 0; padding: 16px 18px; border: 1px solid var(--la-border); border-radius: 12px; background: var(--la-surface); }
.reader-glossary h4 { margin: 0 0 10px; }
.reader-gloss-row { display: flex; align-items: center; gap: 6px; padding: 4px 0; }
.reader-gloss-row .en-clickable { cursor: pointer; color: var(--la-accent); }
.gloss-save { margin-left: auto; background: none; border: 1px solid var(--la-border); border-radius: 6px; cursor: pointer; color: var(--la-accent); width: 26px; height: 26px; }
.gloss-save:hover { border-color: var(--la-accent); }
.reader-nav { display: flex; gap: 12px; justify-content: space-between; margin: 26px 0; }
.reader-questions { margin-top: 20px; }
.reader-q { margin-bottom: 18px; }
.word-popover { position: absolute; z-index: 9999; width: 240px; background: var(--la-surface); border: 1px solid var(--la-accent); border-radius: 12px; padding: 12px; box-shadow: 0 12px 32px rgba(0,0,0,0.35); }
.wordpop-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.wordpop-head strong { font-size: 1.05rem; color: var(--la-text); }
.wordpop-speak { margin-left: auto; background: none; border: none; cursor: pointer; font-size: 1rem; }
.wordpop-input { margin-bottom: 8px; }
.wordpop-actions { display: flex; justify-content: flex-end; }
.input-level { margin-bottom: 26px; }
.input-level-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.input-resource { display: flex; align-items: flex-start; gap: 12px; padding: 12px 14px; margin-bottom: 8px; border: 1px solid var(--la-border); border-radius: 11px; background: var(--la-surface); text-decoration: none; color: inherit; transition: border-color 0.2s; }
.input-resource:hover { border-color: var(--la-accent); text-decoration: none; }
.input-res-icon { font-size: 1.3rem; }
.input-res-title { font-weight: 600; color: var(--la-text); }
.input-res-why { font-size: 0.86rem; margin-top: 2px; }
.input-res-how { font-size: 0.86rem; margin-top: 3px; color: var(--la-accent); }

/* Conversation tutor */
.conv-wrap { max-width: 720px; margin: 0 auto; }
.conv-scenarios { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 14px; }
.conv-scenario-card {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 18px; border: 1px solid var(--la-border);
  background: var(--la-surface); border-radius: 14px;
  color: var(--la-text); font-size: 1rem; cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.conv-scenario-card:hover { border-color: var(--la-accent); background: var(--la-surface-2, var(--la-surface)); }
.conv-scenario-icon { font-size: 1.4rem; }
.conv-log {
  display: flex; flex-direction: column; gap: 10px;
  max-height: 56vh; overflow-y: auto; padding: 8px 2px 14px;
}
.conv-msg {
  max-width: 82%; padding: 10px 14px; border-radius: 14px;
  line-height: 1.5; white-space: pre-wrap; word-wrap: break-word;
}
.conv-user {
  align-self: flex-end; background: var(--la-accent); color: #fff;
  border-bottom-right-radius: 4px;
}
.conv-assistant {
  align-self: flex-start; background: var(--la-surface);
  border: 1px solid var(--la-border); border-bottom-left-radius: 4px;
}
.conv-typing { opacity: 0.6; font-size: 1.3rem; letter-spacing: 2px; }
.conv-correction {
  margin-top: 6px; padding-top: 6px; border-top: 1px dashed var(--la-border);
  color: var(--la-muted); font-size: 0.9rem;
}
.conv-input {
  width: 100%; background: var(--la-surface);
  border: 2px solid var(--la-border); border-radius: 12px;
  padding: 12px 16px; color: var(--la-text);
  font-family: var(--font); font-size: 1rem; resize: vertical;
  margin: 6px 0 10px;
}
.conv-input:focus { outline: none; border-color: var(--la-accent); box-shadow: 0 0 0 4px var(--la-accent-glow); }
.conv-controls { display: flex; gap: 10px; }
.conv-loading { padding: 14px 0; }
@media (max-width: 540px) { .conv-scenarios { grid-template-columns: 1fr; } .conv-msg { max-width: 90%; } }

/* Listen exercise */
.listen-block {
  text-align: center; padding: 36px 24px;
}
.listen-prompt {
  font-size: 1rem; color: var(--la-muted); margin-bottom: 18px;
}
.listen-btn {
  background: var(--la-accent-glow);
  border: 2px solid var(--la-accent);
  color: var(--la-accent2);
  border-radius: 14px;
  padding: 22px 32px;
  font-family: var(--font); font-size: 1.1rem; font-weight: 600;
  display: inline-flex; align-items: center; gap: 14px;
  cursor: pointer;
  transition: all 0.15s;
}
.listen-btn:hover { background: rgba(167,139,250,0.28); transform: translateY(-2px); }
.listen-icon { font-size: 1.4rem; }

/* Session end */
.session-end {
  text-align: center; padding: 80px 20px;
}
.session-end .big {
  font-size: 4rem; margin-bottom: 18px;
  animation: pop 0.5s ease;
}
.session-end h3 { font-size: 1.5rem; margin-bottom: 8px; }
.session-end p { color: var(--la-muted); margin-bottom: 26px; }
.session-end .actions {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
}
@keyframes pop {
  0% { transform: scale(0.5); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =============================================================
   STATS SCREEN
============================================================= */
.stats-screen .deck-progress-list { margin-top: 36px; }
.stats-screen .deck-progress-list h3 { font-size: 1rem; margin-bottom: 14px; color: var(--la-text); }
.stats-screen .deck-progress-row {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 14px 18px; margin-bottom: 8px;
}
.stats-screen .row-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px;
}
.stats-screen .name { font-weight: 600; color: var(--la-text); }
.stats-screen .progress-num {
  font-family: var(--mono); font-size: 0.82rem; color: var(--la-muted);
}
.stats-screen .row-bar {
  height: 6px; background: var(--la-bg); border-radius: 3px; overflow: hidden;
}
.stats-screen .row-bar > div { height: 100%; transition: width 0.3s; }

/* =============================================================
   SETTINGS SCREEN
============================================================= */
.settings-screen { display: flex; flex-direction: column; gap: 16px; }

.settings-block {
  background: linear-gradient(180deg, var(--la-surface) 0%, var(--la-surface2) 100%);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 24px 26px;
}
.settings-block.danger-block { border-color: rgba(251,113,133,0.3); }
.settings-block h3 { font-size: 1.05rem; margin-bottom: 12px; color: var(--la-text); }
.settings-block p {
  color: var(--la-muted); font-size: 0.9rem; line-height: 1.6;
  margin-bottom: 14px;
}
.settings-block p strong, .settings-block p a { color: var(--la-text); }

.settings-block .field { margin-top: 14px; }
.settings-block .field label {
  display: block;
  font-size: 0.78rem; color: var(--la-muted);
  margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px;
  font-weight: 600;
}
.settings-block .check-field {
  display: flex; align-items: center; gap: 10px;
}
.settings-block .check-field label {
  text-transform: none; letter-spacing: 0; font-weight: 400;
  margin-bottom: 0; font-size: 0.92rem; color: var(--la-text);
}
.settings-block .check-field input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--la-accent);
  cursor: pointer;
}
.settings-block select, .settings-block input[type="text"] {
  background: var(--la-bg); border: 1px solid var(--la-border);
  border-radius: 8px; color: var(--la-text);
  padding: 9px 12px; font-family: var(--font); font-size: 0.92rem;
  margin-right: 8px;
}
.settings-block select:focus, .settings-block input:focus {
  outline: none; border-color: var(--la-accent);
}
.settings-block textarea {
  width: 100%; min-height: 140px;
  background: var(--la-bg); border: 1px solid var(--la-border);
  border-radius: 8px; color: var(--la-text);
  font-family: var(--mono); font-size: 0.85rem;
  padding: 12px; resize: vertical;
}
.settings-block textarea:focus { outline: none; border-color: var(--la-accent); }
.settings-block .row {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin-top: 14px;
}

.rate-row {
  display: flex; align-items: center; gap: 14px;
}
.rate-row input[type="range"] {
  flex: 1; max-width: 320px; accent-color: var(--la-accent);
}
.rate-label {
  font-family: var(--mono); font-size: 0.9rem;
  color: var(--la-accent2); min-width: 50px;
}

.radio-row { display: flex; flex-wrap: wrap; gap: 8px; }
.radio-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--la-bg); border: 1.5px solid var(--la-border);
  border-radius: 22px; padding: 7px 14px;
  cursor: pointer; transition: all 0.15s;
  font-size: 0.88rem; color: var(--la-muted);
}
.radio-pill input[type="radio"] {
  appearance: none; -webkit-appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--la-border); margin: 0;
  position: relative; cursor: pointer;
}
.radio-pill input[type="radio"]:checked {
  border-color: var(--la-accent); background: var(--la-accent);
}
.radio-pill input[type="radio"]:checked::after {
  content: ''; position: absolute; inset: 2px;
  border-radius: 50%; background: var(--la-bg);
}
.radio-pill:hover { border-color: var(--la-accent); color: var(--la-text); }
.radio-pill:has(input:checked) {
  border-color: var(--la-accent); background: var(--la-accent-glow);
  color: var(--la-accent2); font-weight: 600;
}

.deck-mgmt-list { margin-top: 14px; display: flex; flex-direction: column; gap: 4px; }
.deck-mgmt-row {
  display: grid;
  grid-template-columns: 12px 1fr auto auto;
  gap: 12px; align-items: center;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.9rem;
}
.deck-mgmt-row:hover { background: var(--la-bg); }
.deck-mgmt-row.top { font-weight: 600; margin-top: 6px; }
.color-dot { width: 12px; height: 12px; border-radius: 3px; }
.deck-mgmt-name { color: var(--la-text); }
.deck-mgmt-count { font-family: var(--mono); font-size: 0.78rem; color: var(--la-muted); }

/* =============================================================
   MODAL
============================================================= */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  position: relative;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 16px;
  padding: 28px 30px;
  max-width: 520px; width: 100%;
  max-height: 90vh; overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.7);
  animation: fadeUp 0.2s ease;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: none;
  color: var(--la-muted);
  font-size: 1.6rem;
  line-height: 1;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  padding: 0;
  z-index: 1;
}
.modal-close:hover {
  background: var(--la-surface2);
  color: var(--la-text);
}
.modal h3 { font-size: 1.2rem; margin-bottom: 20px; color: var(--la-text); }
.modal .field { margin-bottom: 14px; }
.modal .field label {
  display: block; font-size: 0.78rem;
  color: var(--la-muted); margin-bottom: 6px;
  text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600;
}
.modal .field input,
.modal .field textarea,
.modal .field select {
  width: 100%; background: var(--la-bg); border: 1px solid var(--la-border);
  border-radius: 8px; color: var(--la-text);
  padding: 10px 13px; font-family: var(--font); font-size: 0.95rem;
}
.modal .field input[type="color"] { padding: 4px; height: 42px; cursor: pointer; }
.modal .field textarea { min-height: 80px; resize: vertical; font-family: var(--mono); font-size: 0.85rem; }
.modal .field input:focus, .modal .field textarea:focus, .modal .field select:focus {
  outline: none; border-color: var(--la-accent); box-shadow: 0 0 0 3px var(--la-accent-glow);
}
.modal .modal-actions {
  display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px;
}

/* =============================================================
   ACCOUNT / AUTH
============================================================= */
.account-block { border-color: var(--la-accent); background: linear-gradient(180deg, var(--la-surface) 0%, rgba(167,139,250,0.06) 100%); }
.account-block p strong { color: var(--la-accent2); }

.sync-indicator {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--la-muted);
  letter-spacing: 0.3px;
}
.sync-indicator.ok { color: var(--la-success); }
.sync-indicator.failed { color: var(--la-danger); }
.sync-indicator.syncing { color: var(--la-accent2); }

.auth-modal {
  max-width: 440px;
}
.auth-modal h3 { text-align: center; margin-bottom: 14px; }

.auth-tabs {
  display: flex; gap: 0;
  background: var(--la-bg); border: 1px solid var(--la-border);
  border-radius: 10px; padding: 4px;
  margin-bottom: 18px;
}
.auth-tab {
  flex: 1; background: transparent; border: none;
  color: var(--la-muted); font-family: var(--font);
  font-size: 0.92rem; font-weight: 600;
  padding: 9px 14px; border-radius: 7px;
  cursor: pointer; transition: background 0.15s, color 0.15s;
}
.auth-tab:hover { color: var(--la-text); }
.auth-tab.active { background: var(--la-accent); color: #1a1430; }

.auth-help {
  font-size: 0.78rem; color: var(--la-muted);
  margin-top: -8px; margin-bottom: 10px;
}

.auth-msg {
  margin-top: 12px; padding: 10px 14px;
  border-radius: 8px; font-size: 0.88rem;
  min-height: 0;
}
.auth-msg:empty { display: none; }
.auth-msg-error {
  background: rgba(251,113,133,0.12);
  color: var(--la-danger);
  border: 1px solid var(--la-danger);
}
.auth-msg-success {
  background: rgba(52,211,153,0.12);
  color: var(--la-success);
  border: 1px solid var(--la-success);
}

.auth-consent {
  font-size: 0.78rem;
  color: var(--la-muted);
  text-align: center;
  margin-top: 12px;
  line-height: 1.5;
}
.auth-consent a { color: var(--la-accent2); }
.auth-consent a:hover { text-decoration: underline; }

.auth-foot {
  text-align: center;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--la-muted);
}
.auth-foot a {
  color: var(--la-accent2);
  text-decoration: none;
}
.auth-foot a:hover { text-decoration: underline; }

.captcha-holder {
  margin-top: 10px;
  margin-bottom: 4px;
  min-height: 65px;
  display: flex;
  justify-content: center;
}

/* GDPR action rows in Account block */
.gdpr-action {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--la-bg);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  flex-wrap: wrap;
}
.gdpr-action-body { flex: 1; min-width: 180px; }
.gdpr-action-body strong {
  display: block;
  color: var(--la-text);
  font-size: 0.95rem;
  margin-bottom: 2px;
}
.gdpr-action-body p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--la-muted);
  line-height: 1.45;
}
.gdpr-action-danger { border-color: rgba(251,113,133,0.25); }
.gdpr-action-danger .gdpr-action-body strong { color: var(--la-danger); }

.delete-warning {
  color: var(--la-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 16px;
  padding: 12px 14px;
  background: rgba(251,113,133,0.08);
  border-left: 3px solid var(--la-danger);
  border-radius: 4px;
}

/* =============================================================
   ADMIN SCREEN
============================================================= */
.admin-screen { animation: fadeUp 0.25s ease; }
.admin-header { margin-bottom: 22px; }
.admin-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 4px; }
.admin-sub {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--la-muted);
}

.admin-table {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  overflow: hidden;
  overflow-x: auto;
}
.admin-row {
  display: grid;
  grid-template-columns: minmax(180px, 2fr) 50px 130px 130px 70px 80px 80px 70px 120px;
  align-items: center;
  border-bottom: 1px solid var(--la-border);
  font-size: 0.85rem;
  min-width: 900px;
}
.admin-row:last-child { border-bottom: none; }
.admin-row:hover:not(.admin-row-head) { background: var(--la-surface2); }
.admin-row-head {
  background: var(--la-surface2);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--la-muted);
  position: sticky; top: 0;
}
.admin-cell {
  padding: 12px 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-email {
  font-weight: 500;
  color: var(--la-text);
}
.admin-num {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--la-muted);
  text-align: right;
}
.admin-num.learned { color: var(--la-success); }
.admin-num.streak { color: var(--la-danger); }
.admin-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--la-muted);
}
.verif-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
}
.verif-dot.ok { background: rgba(52,211,153,0.18); color: var(--la-success); }
.verif-dot.no { background: var(--la-bg); color: var(--la-muted); }

/* =============================================================
   LANDING PAGE (welcome for not-signed-in users)
============================================================= */
.landing {
  max-width: 1000px;
  margin: 0 auto;
  padding-top: 20px;
  animation: fadeUp 0.3s ease;
}

.landing-hero {
  text-align: center;
  padding: 40px 20px 56px;
}
.landing-mark {
  font-size: 4rem;
  line-height: 1;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 30px rgba(167,139,250,0.5));
}
.landing-title {
  font-family: var(--font);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--la-text) 0%, var(--la-accent) 60%, var(--la-accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.landing-tagline {
  font-size: 1.15rem;
  color: var(--la-muted);
  margin-bottom: 32px;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
}
.landing-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.landing-ctas .cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, filter 0.15s, border-color 0.15s, background 0.15s;
  border: 2px solid transparent;
  text-decoration: none;
}
.landing-ctas .cta:hover { transform: translateY(-2px); text-decoration: none; }
.landing-ctas .cta-primary {
  background: linear-gradient(180deg, var(--la-accent) 0%, var(--la-accent-dim) 100%);
  color: #1a1430;
  box-shadow: 0 8px 28px var(--la-accent-glow);
}
.landing-ctas .cta-primary:hover { filter: brightness(1.08); }
.landing-ctas .cta-secondary {
  background: var(--la-surface);
  color: var(--la-text);
  border-color: var(--la-border);
}
.landing-ctas .cta-secondary:hover { border-color: var(--la-accent); background: var(--la-accent-glow); }
.landing-guest {
  display: inline-block;
  color: var(--la-muted);
  font-size: 0.9rem;
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  transition: color 0.15s;
  font-family: var(--font);
}
.landing-guest:hover { color: var(--la-accent2); text-decoration: underline; }

/* Section dividers */
.landing h2 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--la-muted);
  text-align: center;
  margin-bottom: 24px;
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 0 12px;
  margin-bottom: 64px;
}
.landing-feature {
  background: linear-gradient(180deg, var(--la-surface) 0%, var(--la-surface2) 100%);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 24px 22px;
  transition: border-color 0.2s, transform 0.2s;
}
.landing-feature:hover {
  border-color: var(--la-accent);
  transform: translateY(-2px);
}
.landing-feature-icon { font-size: 1.8rem; margin-bottom: 10px; }
.landing-feature h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--la-text);
}
.landing-feature p {
  font-size: 0.9rem;
  color: var(--la-muted);
  line-height: 1.55;
}

/* Demo card mockup */
.landing-demo {
  margin-bottom: 64px;
  padding: 0 12px;
}
.landing-demo-wrap {
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}
.landing-demo-glow {
  position: absolute;
  inset: -20px -30px;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, var(--la-accent-glow), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.landing-demo-card {
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, var(--la-surface) 0%, var(--la-surface2) 100%);
  border: 1px solid var(--la-border);
  border-radius: 18px;
  padding: 36px 28px 32px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.5);
  text-align: center;
}
.landing-demo-progress {
  height: 4px;
  background: var(--la-bg);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 20px;
}
.landing-demo-progress > div {
  width: 38%;
  height: 100%;
  background: linear-gradient(90deg, var(--la-accent) 0%, var(--la-accent2) 100%);
}
.landing-demo-word {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--la-text);
}
.landing-demo-pron {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--la-muted);
  margin-bottom: 16px;
}
.landing-demo-divider {
  height: 1px;
  background: var(--la-border);
  margin: 16px 0;
}
.landing-demo-answer {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--la-accent2);
  margin-bottom: 14px;
}
.landing-demo-example {
  font-size: 0.85rem;
  color: var(--la-muted);
  font-style: italic;
  background: var(--la-bg);
  border-left: 3px solid var(--la-accent);
  padding: 10px 14px;
  border-radius: 4px;
  text-align: left;
  margin-bottom: 18px;
}
.landing-demo-grades {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.landing-demo-grade {
  padding: 8px 4px;
  border: 1.5px solid var(--la-border);
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 600;
  background: var(--la-surface);
}
.landing-demo-grade.again { border-color: var(--la-danger); color: var(--la-danger); }
.landing-demo-grade.hard  { border-color: var(--la-warning); color: var(--la-warning); }
.landing-demo-grade.good  { border-color: var(--la-success); color: var(--la-success); }
.landing-demo-grade.easy  { border-color: var(--la-accent2); color: var(--la-accent2); }
.landing-demo-caption {
  text-align: center;
  font-size: 0.78rem;
  color: var(--la-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-top: 16px;
  font-family: var(--mono);
}

/* Why section */
.landing-why {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
  padding: 36px 24px;
  background: linear-gradient(180deg, var(--la-surface) 0%, transparent 100%);
  border-top: 1px solid var(--la-border);
  border-bottom: 1px solid var(--la-border);
}
.landing-why-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--la-text);
  letter-spacing: -0.01em;
}
.landing-why-text {
  font-size: 1rem;
  color: var(--la-muted);
  line-height: 1.7;
}

.landing-bottom-cta {
  text-align: center;
  padding-bottom: 32px;
}
.landing-bottom-cta .cta {
  margin: 0 6px;
}

/* When landing is shown, hide the app tabs (they're for signed-in users) */
.show-landing .app-tabs { display: none; }

/* =============================================================
   TOAST
============================================================= */
.toast {
  position: fixed; bottom: 30px; left: 50%;
  transform: translateX(-50%);
  background: var(--la-surface2);
  border: 1px solid var(--la-accent);
  border-radius: 10px;
  padding: 14px 22px;
  font-size: 0.9rem; color: var(--la-text);
  box-shadow: 0 6px 24px rgba(0,0,0,0.5);
  z-index: 2000;
  animation: toastIn 0.2s ease;
}
@keyframes toastIn {
  from { transform: translate(-50%, 12px); opacity: 0; }
  to   { transform: translate(-50%, 0); opacity: 1; }
}

/* =============================================================
   LISTEN SCREEN
============================================================= */
.ls-screen { padding: 8px 0 80px; }
.ls-title { font-size: 1.6rem; font-weight: 700; margin: 0 0 6px; color: var(--la-text); }
.ls-subtitle { color: var(--la-muted); font-size: 0.92rem; margin: 0 0 22px; }
.ls-section { margin-bottom: 22px; }
.ls-section-title {
  color: var(--la-muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 8px;
  font-weight: 600;
}
.ls-deck-list, .ls-settings {
  background: var(--la-surface);
  border-radius: 12px;
  padding: 6px 10px;
  border: 1px solid var(--la-border);
}
.ls-muted { color: var(--la-muted); padding: 14px; }
.ls-pick-row {
  display: flex; align-items: center;
  padding: 6px 0;
  gap: 4px;
}
.ls-expand {
  width: 24px; height: 24px;
  background: transparent; border: none;
  color: var(--la-muted); font-size: 0.9rem; cursor: pointer;
}
.ls-cb-wrap {
  background: transparent; border: none; cursor: pointer;
  padding: 2px;
}
.ls-checkbox {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px;
  border-radius: 6px;
  border: 2px solid var(--la-border);
  background: var(--la-surface2);
  color: #fff;
  font-size: 13px; font-weight: 700;
}
.ls-checkbox.sm { width: 18px; height: 18px; font-size: 11px; }
.ls-checkbox.checked { background: var(--la-accent); border-color: var(--la-accent); }
.ls-checkbox.partial { background: color-mix(in srgb, var(--la-accent) 40%, transparent); border-color: var(--la-accent); }
.ls-pick-body {
  display: flex; align-items: center; flex: 1 1 auto;
  background: transparent; border: none; cursor: pointer;
  padding: 4px 0;
  color: inherit; text-align: left;
}
.ls-color-bar {
  width: 4px; align-self: stretch;
  border-radius: 2px;
  margin: 0 8px;
}
.ls-pick-info { display: flex; flex-direction: column; flex: 1; }
.ls-pick-name { color: var(--la-text); font-weight: 500; font-size: 0.96rem; }
.ls-pick-sub  { color: var(--la-muted); font-size: 0.74rem; margin-top: 2px; }
.ls-card-row {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 8px;
  background: transparent; border: none; cursor: pointer;
  color: inherit; text-align: left;
  width: 100%;
}
.ls-card-row:hover { background: rgba(255,255,255,0.03); }
.ls-card-info { display: flex; flex-direction: column; flex: 1; }
.ls-card-en { color: var(--la-text); font-size: 0.86rem; font-weight: 500; }
.ls-card-cs { color: var(--la-muted); font-size: 0.74rem; margin-top: 1px; }
.ls-links {
  display: flex; gap: 18px;
  border-top: 1px solid var(--la-border);
  padding: 10px 6px 4px;
  margin-top: 6px;
}
.ls-link {
  background: transparent; border: none;
  color: var(--la-accent); font-weight: 600; font-size: 0.86rem;
  cursor: pointer;
}
.ls-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 6px;
}
.ls-row-label { color: var(--la-text); font-size: 0.94rem; flex: 1; }
.ls-stepper { display: flex; align-items: center; gap: 10px; }
.ls-step-btn {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  color: var(--la-text);
  font-size: 1.1rem; font-weight: 700;
  cursor: pointer;
}
.ls-step-val {
  min-width: 56px; text-align: center;
  color: var(--la-text); font-weight: 600;
}
.ls-switch { cursor: pointer; }
.ls-switch input { display: none; }
.ls-switch-track {
  display: inline-block;
  width: 44px; height: 24px;
  background: var(--la-border);
  border-radius: 999px;
  position: relative;
  transition: background 0.15s;
}
.ls-switch.on .ls-switch-track { background: color-mix(in srgb, var(--la-accent) 60%, transparent); }
.ls-switch-thumb {
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  background: var(--la-muted);
  border-radius: 50%;
  transition: transform 0.15s, background 0.15s;
}
.ls-switch.on .ls-switch-thumb { transform: translateX(20px); background: var(--la-accent); }
.ls-start-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  padding: 14px 0 0;
}
.ls-start-text { color: var(--la-muted); font-size: 0.88rem; }

/* Playing phase */
.ls-playing { display: flex; flex-direction: column; min-height: 70vh; padding: 8px 0; }
.ls-top-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 0;
}
.ls-top-action {
  background: transparent; border: none;
  color: var(--la-accent); font-weight: 600; font-size: 0.94rem;
  cursor: pointer;
}
.ls-top-pos { color: var(--la-muted); font-size: 0.86rem; }
.ls-card-area {
  flex: 1; min-height: 280px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 32px 16px;
  text-align: center;
}
.ls-lang-label {
  color: var(--la-accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  font-weight: 700;
}
.ls-big-text {
  color: var(--la-text);
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 6px;
  word-break: break-word;
}
.ls-pron {
  color: var(--la-accent);
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 1.05rem;
  margin-bottom: 10px;
}
.ls-small-text {
  color: var(--la-muted);
  font-size: 1.05rem;
}
.ls-repeat-badge {
  margin-top: 14px;
  color: #fbbf24;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.ls-controls {
  display: flex; justify-content: center; align-items: center;
  gap: 22px;
  margin: 22px 0;
}
.ls-ctrl {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  color: var(--la-text);
  font-size: 1.4rem;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}
.ls-ctrl-big { width: 78px; height: 78px; font-size: 1.9rem; }
.ls-ctrl-primary { background: var(--la-accent); border-color: var(--la-accent); color: #fff; }
.ls-ctrl-primary:hover { filter: brightness(1.1); }
.ls-bottom-hint { color: var(--la-muted); font-size: 0.78rem; text-align: center; margin: 0; line-height: 1.4; }
.ls-empty { text-align: center; padding: 40px 16px; }
.ls-empty-big { font-size: 3rem; margin-bottom: 8px; }
.ls-empty h3 { margin: 8px 0; }
.ls-empty p { color: var(--la-muted); }

/* =============================================================
   MIX SCREEN
============================================================= */
.mix-screen { padding: 8px 0 100px; }
.mix-title { font-size: 1.6rem; font-weight: 700; margin: 0 0 6px; color: var(--la-text); }
.mix-subtitle { color: var(--la-muted); font-size: 0.92rem; margin: 0 0 22px; }
.mix-section-title {
  color: var(--la-muted); font-size: 0.74rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin: 18px 0 8px; font-weight: 600;
}
.mix-saved { margin-bottom: 8px; }
.mix-saved-row {
  display: flex; align-items: stretch;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  margin-bottom: 8px;
  overflow: hidden;
}
.mix-saved-main {
  flex: 1;
  background: transparent; border: none;
  padding: 12px 14px;
  text-align: left;
  cursor: pointer;
  color: inherit;
  display: flex; flex-direction: column;
}
.mix-saved-main:hover { background: rgba(255,255,255,0.02); }
.mix-saved-name { color: var(--la-text); font-weight: 600; font-size: 0.94rem; }
.mix-saved-sub  { color: var(--la-muted); font-size: 0.74rem; margin-top: 2px; }
.mix-saved-edit, .mix-saved-del {
  background: transparent;
  border: none;
  border-left: 1px solid var(--la-border);
  color: var(--la-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0 14px;
}
.mix-saved-edit:hover { color: var(--la-accent); }
.mix-saved-del:hover  { color: #f87171; }
.mix-pick-list { display: flex; flex-direction: column; gap: 6px; }
.mix-pick-row {
  display: flex; align-items: center; gap: 4px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  color: inherit; text-align: left;
}
.mix-pick-row.selected { border-color: var(--la-accent); background: color-mix(in srgb, var(--la-accent) 8%, var(--la-surface)); }
.mix-pick-row:hover { background: rgba(255,255,255,0.02); }
.mix-cb {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px;
  border-radius: 6px;
  border: 2px solid var(--la-border);
  background: var(--la-surface2);
  color: #fff;
  font-size: 13px; font-weight: 700;
}
.mix-cb.checked { background: var(--la-accent); border-color: var(--la-accent); }
.mix-color-bar {
  width: 4px; align-self: stretch;
  border-radius: 2px;
  margin: 0 10px;
}
.mix-pick-info { display: flex; flex-direction: column; flex: 1; }
.mix-pick-name { color: var(--la-text); font-weight: 600; }
.mix-pick-sub  { color: var(--la-muted); font-size: 0.78rem; margin-top: 2px; }
.mix-footer {
  position: sticky; bottom: 0;
  background: var(--la-bg);
  padding: 14px 0 6px;
  border-top: 1px solid var(--la-border);
  margin-top: 18px;
  display: flex; flex-direction: column; gap: 10px;
}
.mix-footer-stats { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.mix-muted { color: var(--la-muted); font-size: 0.86rem; }
.mix-due { color: #fbbf24; }
.mix-footer-links { display: flex; gap: 14px; }
.mix-link {
  background: transparent; border: none;
  color: var(--la-accent); font-weight: 600; font-size: 0.86rem;
  cursor: pointer;
}
.mix-footer-actions { display: flex; gap: 8px; }
.mix-footer-actions .btn-app { flex: 1; }

/* =============================================================
   STATS HISTORY CHART + REMINDER BANNER + CARD INACTIVE
============================================================= */
.stats-history { margin: 22px 0; }
.stats-history h3 {
  color: var(--la-muted); font-size: 0.74rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin: 0 0 10px; font-weight: 600;
}
.stats-chart {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 14px;
  align-items: end;
}
.stats-bar-col {
  display: flex; flex-direction: column; align-items: center;
  gap: 4px;
}
.stats-bar-wrap {
  width: 100%;
  height: 80px;
  display: flex; align-items: flex-end; justify-content: center;
}
.stats-bar {
  width: 70%;
  min-height: 2px;
  background: var(--la-accent);
  border-radius: 4px 4px 0 0;
  transition: height 0.2s;
}
.stats-bar-num { color: var(--la-text); font-size: 0.74rem; font-weight: 600; }
.stats-bar-lbl { color: var(--la-muted); font-size: 0.72rem; }

.reminder-banner {
  display: flex; align-items: center; gap: 10px;
  background: color-mix(in srgb, var(--la-accent) 14%, var(--la-surface));
  border: 1px solid var(--la-accent);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 16px;
}
.reminder-icon { font-size: 1.2rem; }
.reminder-text { flex: 1; color: var(--la-text); font-size: 0.92rem; }
.reminder-dismiss {
  background: transparent; border: none;
  color: var(--la-muted);
  font-size: 1.4rem;
  cursor: pointer;
  width: 28px; height: 28px;
  border-radius: 50%;
}
.reminder-dismiss:hover { color: var(--la-text); background: rgba(255,255,255,0.06); }

.card-row.is-inactive { opacity: 0.55; }
.card-row.is-inactive .en, .card-row.is-inactive .cs { text-decoration: line-through; }
.icon-btn.inactive { color: var(--la-muted); }
.badge.inactive {
  background: var(--la-surface2);
  color: var(--la-muted);
  border: 1px solid var(--la-border);
}
.card-bulk-bar {
  display: flex; align-items: center; gap: 10px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 8px 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.card-bulk-stat { color: var(--la-muted); font-size: 0.86rem; flex: 1; }

/* =============================================================
   HUB v3 — multi-section portal styles
   (Dashboard, Grammar, Reading, Listening, Pronunciation, Placement, Library)
============================================================= */

/* --- Tab bar: 8 tabs need horizontal scroll on narrow screens --- */
.app-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 6px;
  margin-bottom: 18px;
  -webkit-overflow-scrolling: touch;
}
.app-tabs::-webkit-scrollbar { height: 6px; }
.app-tabs::-webkit-scrollbar-thumb { background: var(--la-border); border-radius: 3px; }
.app-tab { white-space: nowrap; }

/* --- Section intro (shared) --- */
.section-intro { margin-bottom: 20px; }
.section-title { font-size: 1.75rem; font-weight: 700; margin-bottom: 6px; }
.section-lede  { color: var(--la-muted); font-size: 1rem; line-height: 1.5; max-width: 60ch; }
.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.section-card {
  display: flex;
  flex-direction: column;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 16px;
  text-decoration: none;
  color: inherit;
  transition: transform .08s ease, border-color .12s ease, background .12s ease;
}
.section-card:hover { transform: translateY(-2px); border-color: var(--la-accent-dim); background: var(--la-surface2); text-decoration: none; }
.section-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.section-card-icon { font-size: 1.6rem; }
.section-card-title { font-size: 1.05rem; font-weight: 700; margin: 0; }
.section-card-lede { color: var(--la-muted); font-size: 0.88rem; line-height: 1.4; flex: 1; }
.section-card-stat { color: var(--la-accent2); font-size: 0.82rem; margin-top: 10px; font-weight: 600; }

.section-loading { padding: 40px; text-align: center; color: var(--la-muted); }
.section-error { padding: 40px; text-align: center; color: var(--la-danger); }
.muted { color: var(--la-muted); font-size: 0.88rem; }

/* --- Dashboard --- */
.dashboard { display: flex; flex-direction: column; gap: 22px; }
.dashboard-greeting { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.dashboard-h1 { font-size: 1.6rem; font-weight: 700; margin: 0; }
.dashboard-section-h { font-size: 1.2rem; font-weight: 700; margin: 0 0 6px; color: var(--la-accent2); }

.level-badge {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 3px 10px; border-radius: 999px;
  font-weight: 700; font-size: 0.82rem;
  color: #0a0e1a;
  letter-spacing: 0.3px;
}
.level-badge-big { padding: 10px 22px; font-size: 1.5rem; border-radius: 12px; }

.streak-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  padding: 4px 12px; border-radius: 999px; font-size: 0.86rem;
  margin-left: auto;
}
.streak-icon { filter: drop-shadow(0 0 4px rgba(251, 146, 60, 0.6)); }

.dashboard-goal {
  display: flex; align-items: center; gap: 20px;
  background: linear-gradient(135deg, var(--la-surface), var(--la-surface2));
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 16px 20px;
}
.goal-ring { width: 96px; height: 96px; flex-shrink: 0; }
.dashboard-goal-text { flex: 1; }
.dashboard-goal-text h2 { font-size: 1.1rem; margin-bottom: 4px; }
.dashboard-goal-text p { font-size: 0.88rem; line-height: 1.4; }
.goal-controls { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.goal-label { font-weight: 600; color: var(--la-accent2); min-width: 88px; text-align: center; }

.dashboard-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.study-now-btn { display: inline-flex; align-items: center; gap: 8px; font-size: 1.05rem; padding: 12px 22px; }
.study-now-icon { font-size: 0.9rem; }
.study-now-badge {
  background: rgba(255, 255, 255, 0.25); border-radius: 999px;
  padding: 1px 9px; font-size: 0.85rem; font-weight: 700;
}
.weak-btn { display: inline-flex; align-items: center; }

.dashboard-cta {
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.12), rgba(124, 108, 214, 0.05));
  border: 1px dashed var(--la-accent-dim);
  border-radius: 14px;
  padding: 16px 20px;
}
.dashboard-cta h3 { font-size: 1.05rem; margin-bottom: 4px; }
.dashboard-cta p { color: var(--la-muted); font-size: 0.92rem; margin-bottom: 10px; }

.dashboard-recommended h2 { font-size: 1.15rem; margin-bottom: 10px; }
.rec-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.rec-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
}
.rec-row:hover { background: var(--la-surface2); text-decoration: none; }
.rec-icon { font-size: 1.2rem; }
.rec-title { flex: 1; font-weight: 600; }
.rec-meta { color: var(--la-accent2); font-size: 0.82rem; }

.dashboard-achievements h2 { font-size: 1.15rem; margin-bottom: 10px; }
.ach-row { display: flex; gap: 10px; flex-wrap: wrap; }
.ach-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  padding: 6px 12px; border-radius: 999px;
  font-size: 0.86rem;
}
.ach-chip-icon { font-size: 1.05rem; }

/* --- CEFR group header (shared by Grammar/Reading/Listening lists) --- */
.cefr-group-h {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--la-muted);
  margin: 20px 0 8px;
  text-transform: uppercase;
}

/* --- Lesson card grid (Grammar/Reading/Listening) --- */
.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.lesson-card {
  position: relative;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 14px 16px 12px;
  text-decoration: none;
  color: inherit;
  display: flex; flex-direction: column;
  overflow: hidden;
  transition: transform .08s, border-color .12s, background .12s;
}
.lesson-card:hover { transform: translateY(-2px); border-color: var(--la-accent-dim); background: var(--la-surface2); text-decoration: none; }
.lesson-card-bar {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px;
}
.lesson-card h3 { font-size: 1.0rem; font-weight: 700; margin-bottom: 2px; }
.lesson-card-en { color: var(--la-muted); font-size: 0.82rem; font-style: italic; margin-bottom: 6px; }
.lesson-card-summary { color: var(--la-muted); font-size: 0.85rem; line-height: 1.4; margin-bottom: 8px; flex: 1; }
.lesson-card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.78rem; }
.lesson-card-level { font-weight: 700; color: var(--la-accent2); letter-spacing: 0.5px; }
.lesson-card-done { color: var(--la-success); font-weight: 600; }

/* SRS due indicator — when a section item's interval has elapsed */
.lesson-card-due {
  border-color: rgba(251, 191, 36, 0.45);
  box-shadow: 0 0 0 1px rgba(251, 191, 36, 0.18);
}
.lesson-card-due-badge {
  position: absolute;
  top: 8px;
  right: 10px;
  background: rgba(251, 191, 36, 0.16);
  color: #fcd34d;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid rgba(251, 191, 36, 0.35);
  letter-spacing: 0.02em;
}

/* =============================================================
   GRAMMAR LESSON — structured explain phase
   ───────────────────────────────────────────────────────────
   The rule_cs is one dense Czech paragraph mixing definitions,
   forms, examples and warnings. We parse it into semantic
   chunks (intro / forms / negation / question / signals /
   warning / usage / note) and render each with its own color,
   icon and layout. Constrained line width + clear hierarchy
   replaces the old wall-of-text.
============================================================= */

.lesson-explain { max-width: 820px; margin: 0 auto; }

.lesson-head {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--la-border);
}
.lesson-head .level-badge { align-self: flex-start; }
.lesson-head h1 {
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.01em;
}
.lesson-subtitle { color: var(--la-muted); font-size: 0.95rem; font-style: italic; }

/* Prerequisite banner — shows what concepts this lesson builds on, with
   per-concept mastery (✓ / ✗) drawn from the knowledge graph. Lets the
   learner jump to a missing prereq with one click. */
.prereq-banner {
  margin-bottom: 16px;
  padding: 12px 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.10), rgba(251, 113, 133, 0.03));
  border: 1px solid rgba(251, 191, 36, 0.30);
  border-left: 3px solid var(--la-warning);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.prereq-banner.prereq-all-good {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.08), transparent);
  border-color: rgba(52, 211, 153, 0.28);
  border-left-color: var(--la-success);
}
.prereq-icon {
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: rgba(251, 191, 36, 0.18);
  color: var(--la-warning);
  flex-shrink: 0;
}
.prereq-banner.prereq-all-good .prereq-icon {
  background: rgba(52, 211, 153, 0.18);
  color: var(--la-success);
}
.prereq-text { flex: 1; min-width: 0; }
.prereq-head { font-size: 0.92rem; margin-bottom: 8px; }
.prereq-list { display: flex; flex-wrap: wrap; gap: 6px; }
.prereq-chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.12s ease, transform 0.06s ease;
}
.prereq-chip-ok {
  background: rgba(52, 211, 153, 0.10);
  color: #6ee7b7;
  border: 1px solid rgba(52, 211, 153, 0.28);
}
.prereq-chip-todo {
  background: rgba(251, 113, 133, 0.10);
  color: #fda4af;
  border: 1px solid rgba(251, 113, 133, 0.30);
}
a.prereq-chip-todo:hover {
  background: rgba(251, 113, 133, 0.18);
  text-decoration: none;
}
.prereq-chip-disabled { opacity: 0.7; cursor: default; }

/* TL;DR / hero summary — biggest readable text, leads the eye */
.lesson-summary {
  font-size: 1.18rem;
  line-height: 1.55;
  font-weight: 500;
  color: var(--la-text);
  margin-bottom: 24px;
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(167, 139, 250, 0.12), rgba(96, 165, 250, 0.04));
  border-left: 3px solid var(--la-accent);
  border-radius: 0 12px 12px 0;
}

/* Sectioned rule chunks */
.rule-section {
  margin-bottom: 14px;
  padding: 14px 18px 16px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-left-width: 3px;
  border-radius: 10px;
}
.rule-section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.rule-section-icon {
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--la-surface2);
  color: var(--la-accent2);
  flex-shrink: 0;
}
.rule-section-header h3 {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--la-muted);
}
.rule-section-header .rule-section-sublabel {
  color: var(--la-text);
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.95rem;
  margin-left: -2px;
}
.rule-prose {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--la-text);
  margin-bottom: 10px;
}
.rule-prose:last-child { margin-bottom: 0; }

/* Semantic color accents per bucket */
.rule-section-intro     { border-left-color: var(--la-accent); }
.rule-section-intro     .rule-section-icon { background: rgba(167, 139, 250, 0.18); color: var(--la-accent2); }
.rule-section-usage     { border-left-color: var(--la-success); }
.rule-section-usage     .rule-section-icon { background: rgba(52, 211, 153, 0.15); color: var(--la-success); }
.rule-section-formation { border-left-color: #818cf8; }
.rule-section-formation .rule-section-icon { background: rgba(129, 140, 248, 0.15); color: #c4b5fd; }
.rule-section-forms     { border-left-color: #38bdf8; }
.rule-section-forms     .rule-section-icon { background: rgba(56, 189, 248, 0.15); color: #7dd3fc; }
.rule-section-negation  { border-left-color: var(--la-danger); }
.rule-section-negation  .rule-section-icon { background: rgba(251, 113, 133, 0.15); color: var(--la-danger); }
.rule-section-question  { border-left-color: var(--la-info); }
.rule-section-question  .rule-section-icon { background: rgba(96, 165, 250, 0.15); color: var(--la-info); }
.rule-section-signals   { border-left-color: var(--la-warning); }
.rule-section-signals   .rule-section-icon { background: rgba(251, 191, 36, 0.15); color: var(--la-warning); }
.rule-section-warning   {
  border-left-color: var(--la-warning);
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.07), transparent 65%);
}
.rule-section-warning   .rule-section-icon { background: rgba(251, 191, 36, 0.18); color: var(--la-warning); }
.rule-section-mistake   {
  border-left-color: var(--la-danger);
  background: linear-gradient(135deg, rgba(251, 113, 133, 0.07), transparent 65%);
}
.rule-section-mistake   .rule-section-icon { background: rgba(251, 113, 133, 0.18); color: var(--la-danger); }
.rule-section-examples  { border-left-color: var(--la-accent2); }
.rule-section-examples  .rule-section-icon { background: rgba(196, 181, 253, 0.15); color: var(--la-accent2); }
.rule-section-contrast  { border-left-color: #f472b6; }
.rule-section-contrast  .rule-section-icon { background: rgba(244, 114, 182, 0.15); color: #f472b6; }
.rule-section-example   { border-left-color: var(--la-accent2); }
.rule-section-example   .rule-section-icon { background: rgba(196, 181, 253, 0.15); color: var(--la-accent2); }
.rule-section-note      { border-left-color: var(--la-border); }
.rule-section-mistake .rule-section-header h3 { color: #fda4af; }
.rule-section-warning .rule-section-header h3 { color: var(--la-warning); }

/* Sub-chunks when multiple chunks of the same bucket are merged */
.rule-subchunk { margin-bottom: 10px; }
.rule-subchunk:last-child { margin-bottom: 0; }
.rule-subchunk-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--la-accent2);
  margin-bottom: 4px;
}

/* Forms grid — two-column subject + form, optionally with translation */
.forms-table {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 14px;
  font-variant-numeric: tabular-nums;
  margin-top: 4px;
}
.forms-row { display: contents; }
.forms-en {
  font-family: var(--mono);
  font-size: 0.94rem;
  font-weight: 600;
  color: #7dd3fc;
  padding: 4px 10px;
  background: rgba(56, 189, 248, 0.08);
  border-radius: 6px;
  display: inline-block;
  width: max-content;
}
.forms-cs {
  color: var(--la-muted);
  font-style: italic;
  font-size: 0.9rem;
  align-self: center;
}
.forms-row-simple { padding: 4px 0; }
.forms-row-simple .forms-en { padding: 4px 10px; }

/* Chip rows — signals, plain-form lists */
.chunk-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.chip-signal, .chip-form {
  display: inline-block;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 500;
  font-family: var(--mono);
  letter-spacing: 0.01em;
}
.chip-signal {
  background: rgba(251, 191, 36, 0.10);
  color: #fcd34d;
  border: 1px solid rgba(251, 191, 36, 0.32);
}
.chip-form {
  background: rgba(56, 189, 248, 0.10);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.28);
}

/* Inline English fragments embedded in Czech prose */
.en-frag { font-variant-numeric: tabular-nums; }
.en-pill {
  background: rgba(56, 189, 248, 0.10);
  color: #7dd3fc;
  padding: 1px 7px;
  border-radius: 5px;
  font-size: 0.94em;
  font-weight: 500;
  font-family: var(--mono);
  border: 1px solid rgba(56, 189, 248, 0.22);
}
.en-paren { color: #7dd3fc; font-weight: 500; font-family: var(--mono); font-size: 0.94em; }
.en-inline { color: #7dd3fc; font-weight: 500; }
.cz-trans { color: var(--la-muted); font-style: italic; }

/* Click-to-speak affordance — applies to any English fragment */
.en-clickable {
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.06s ease;
  user-select: none;
}
.en-clickable:hover {
  background: rgba(56, 189, 248, 0.18);
  border-color: rgba(56, 189, 248, 0.45);
}
.en-clickable:active { transform: scale(0.97); }
.en-pill.en-clickable::after {
  content: "🔊";
  font-size: 0.7em;
  opacity: 0;
  margin-left: 4px;
  transition: opacity 0.12s ease;
}
.en-pill.en-clickable:hover::after { opacity: 0.7; }

/* Inline IPA tag — small, muted, monospace */
.ipa-tag {
  display: inline;
  font-family: var(--mono);
  font-size: 0.78em;
  font-weight: 400;
  color: rgba(125, 211, 252, 0.7);
  font-style: italic;
  margin-left: 1px;
  letter-spacing: 0;
}
/* User toggle: hide IPA brackets without losing click-to-speak.
   The .ipa-primer is kept visible — it's the explanation of what IPA is. */
body[data-ipa="off"] .ipa-tag,
body[data-ipa="off"] .ex-ipa { display: none !important; }

/* Lesson audio player — "Poslouchat lekci" floating control bar */
.lesson-audio-cta {
  margin-bottom: 14px;
  display: flex;
  justify-content: flex-end;
}
.btn-audio {
  font-size: 0.92rem;
  padding: 8px 16px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.lesson-audio-bar {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 16px;
  z-index: 90;
  width: min(720px, calc(100vw - 32px));
  background: rgba(19, 26, 46, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  padding: 12px 16px;
  display: none;
  align-items: center;
  gap: 14px;
}
.lab-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.lab-label { font-weight: 600; font-size: 0.85rem; color: var(--la-accent2); }
.lab-progress { font-size: 0.72rem; color: var(--la-muted); font-family: var(--mono); }
.lab-snippet { font-size: 0.8rem; color: var(--la-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lab-controls { display: flex; gap: 4px; flex-shrink: 0; }
.lab-btn {
  background: transparent;
  border: 1px solid var(--la-border);
  color: var(--la-text);
  width: 36px; height: 36px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.lab-btn:hover { background: var(--la-surface2); border-color: var(--la-accent-dim); }
.lab-play { background: var(--la-accent); color: var(--la-bg); border-color: var(--la-accent); }
.lab-play:hover { background: var(--la-accent2); border-color: var(--la-accent2); }
.lab-close { color: var(--la-muted); }
@media (max-width: 540px) {
  .lab-snippet { display: none; }
  .lesson-audio-bar { padding: 10px 12px; gap: 10px; }
  .lab-btn { width: 34px; height: 34px; }
}

/* Reference tables — irregular verbs, phrasal verbs, idioms, etc. */
.tables-filter-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin: 14px 0;
}
.tables-search {
  flex: 1;
  min-width: 200px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  color: var(--la-text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
}
.tables-search:focus { outline: none; border-color: var(--la-accent-dim); }
.tables-chip {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  color: var(--la-text);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.84rem;
  cursor: pointer;
  font-weight: 600;
}
.tables-chip.active {
  background: var(--la-accent);
  color: var(--la-bg);
  border-color: var(--la-accent);
}
.tables-count { font-size: 0.82rem; margin-bottom: 10px; }
.tables-rows { display: flex; flex-direction: column; gap: 12px; }

/* Irregular verbs */
.iv-row {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.iv-forms {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-items: center;
}
.iv-form {
  font-family: var(--mono);
  font-size: 1.0rem;
  font-weight: 600;
  padding: 6px 12px;
  background: rgba(56, 189, 248, 0.08);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 6px;
  display: inline-block;
  width: max-content;
  max-width: 100%;
}
.iv-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.iv-cs { font-size: 0.95rem; color: var(--la-text); font-style: italic; }
.iv-cefr {
  padding: 2px 8px;
  border-radius: 4px;
  color: white;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}
.iv-notes {
  font-size: 0.84rem;
  padding: 6px 10px;
  background: rgba(251, 191, 36, 0.06);
  border-left: 3px solid var(--la-warning);
  border-radius: 0 6px 6px 0;
}
.iv-examples {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
}
.iv-example {
  padding: 6px 10px;
  background: rgba(255,255,255,0.02);
  border-radius: 6px;
  font-size: 0.88rem;
}
.iv-ex-en {
  font-family: var(--mono);
  font-weight: 500;
  color: #7dd3fc;
  cursor: pointer;
  margin-bottom: 1px;
}
.iv-ex-en:hover { color: #bae6fd; }
.iv-ex-cs { font-size: 0.82rem; }

/* Generic reference row (phrasal verbs, idioms, false friends, etc.) */
.ref-row {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ref-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.ref-phrase {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: #7dd3fc;
  padding: 4px 12px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 6px;
  cursor: pointer;
}
.ref-tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  background: var(--la-surface2);
  color: var(--la-muted);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.ref-meaning { font-size: 0.95rem; color: var(--la-text); }
.ref-wrong {
  font-size: 0.82rem;
  color: #fda4af;
}
.ref-wrong code {
  font-family: var(--mono);
  background: rgba(251, 113, 133, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
}
.ref-example {
  padding: 6px 10px;
  background: rgba(255,255,255,0.02);
  border-radius: 6px;
  font-size: 0.88rem;
}
.ref-example .en-clickable { font-family: var(--mono); color: #7dd3fc; cursor: pointer; font-weight: 500; }
.ref-ex-cs { font-size: 0.82rem; }
.ref-examples { display: flex; flex-direction: column; gap: 4px; margin-top: 4px; }

/* False friends */
.ff-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 4px 0;
}
.ff-trap {
  padding: 8px 10px;
  background: rgba(251, 113, 133, 0.06);
  border-left: 3px solid var(--la-danger);
  border-radius: 0 6px 6px 0;
  font-size: 0.88rem;
}
.ff-real {
  padding: 8px 10px;
  background: rgba(52, 211, 153, 0.06);
  border-left: 3px solid var(--la-success);
  border-radius: 0 6px 6px 0;
  font-size: 0.88rem;
}
.ff-trap-text { color: #fda4af; }
.ff-real-text { color: #6ee7b7; }
@media (max-width: 640px) {
  .ff-pair { grid-template-columns: 1fr; }
  .iv-forms { grid-template-columns: 1fr; }
}

/* Pronunciation — speak-and-compare mode */
.pron-speak-wrap { display: flex; flex-direction: column; gap: 16px; }
.pron-speak-unavail {
  padding: 14px 18px;
  background: rgba(251, 191, 36, 0.06);
  border-left: 3px solid var(--la-warning);
  border-radius: 0 10px 10px 0;
}
.pron-speak-target, .pron-speak-heard {
  padding: 16px 20px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
}
.pst-label, .psh-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--la-muted);
  margin-bottom: 6px;
}
.pst-text {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: #7dd3fc;
  margin-bottom: 4px;
  cursor: pointer;
}
.pst-ipa {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: rgba(125, 211, 252, 0.65);
  font-style: italic;
}
.psh-text { font-size: 1.0rem; }
.pron-mic-btn {
  align-self: center;
  font-size: 1.1rem;
  padding: 14px 28px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.pron-mic-btn.listening {
  background: var(--la-danger);
  border-color: var(--la-danger);
  animation: micPulse 1.2s ease-in-out infinite;
}
@keyframes micPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(251, 113, 133, 0.55); }
  50%      { box-shadow: 0 0 0 12px rgba(251, 113, 133, 0); }
}
.pron-speak-score {
  padding: 18px 20px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.pron-speak-score.score-great { background: rgba(52, 211, 153, 0.12); border: 1px solid rgba(52, 211, 153, 0.3); }
.pron-speak-score.score-good  { background: rgba(96, 165, 250, 0.10); border: 1px solid rgba(96, 165, 250, 0.3); }
.pron-speak-score.score-ok    { background: rgba(251, 191, 36, 0.10); border: 1px solid rgba(251, 191, 36, 0.3); }
.pron-speak-score.score-weak  { background: rgba(251, 113, 133, 0.10); border: 1px solid rgba(251, 113, 133, 0.3); }
.pss-pct { font-size: 2rem; font-weight: 700; }
.pss-text { font-size: 1rem; color: var(--la-text); }
.pron-speak-ctrls { display: flex; gap: 10px; justify-content: center; }

/* Help modal — keyboard shortcuts table */
.modal-help { max-width: 480px; }
.help-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.help-table td { padding: 6px 10px; vertical-align: middle; }
.help-key { width: 30%; }
.help-key kbd {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-bottom-width: 2px;
  padding: 2px 8px;
  border-radius: 5px;
  color: var(--la-text);
}
.help-desc { color: var(--la-muted); font-size: 0.9rem; }

/* Settings toggle row */
.settings-toggle-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  cursor: pointer;
}
.settings-toggle-row input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--la-accent);
}
/* AI level (cloud LLM) settings — port z anglictina */
.settings-toggle { display: flex; align-items: center; gap: 10px; padding: 8px 0; cursor: pointer; font-size: 0.95rem; }
.settings-toggle input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--la-accent); cursor: pointer; }
.settings-field { display: flex; flex-direction: column; gap: 5px; margin: 10px 0; }
.settings-field > span { font-size: 0.82rem; color: var(--la-muted); }
.settings-input { padding: 9px 12px; border-radius: 9px; border: 1px solid var(--la-border); background: var(--la-surface); color: var(--la-text); font-size: 0.92rem; font-family: inherit; width: 100%; }
.settings-input:focus { outline: none; border-color: var(--la-accent); }
.en-paren .ipa-tag { color: rgba(125, 211, 252, 0.65); }

/* Forms-en already has padding; let the IPA tag have a little breathing room */
.forms-en.en-clickable { cursor: pointer; }
.forms-en .ipa-tag { color: rgba(125, 211, 252, 0.6); margin-left: 3px; }

/* Chips */
.chip-signal.en-clickable, .chip-form.en-clickable { cursor: pointer; }
.chip-signal .ipa-tag { color: rgba(252, 211, 77, 0.65); }
.chip-form .ipa-tag { color: rgba(125, 211, 252, 0.65); }

/* Examples — IPA on its own line, between English and Czech */
.examples-list .ex-en.en-clickable {
  cursor: pointer;
  display: inline-block;
  border-radius: 4px;
  padding: 1px 4px;
  margin: 0 -4px;
  transition: background 0.12s ease;
}
.examples-list .ex-en.en-clickable:hover {
  background: rgba(56, 189, 248, 0.10);
}
.examples-list .ex-ipa {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: rgba(125, 211, 252, 0.6);
  font-style: italic;
  margin-top: 1px;
  line-height: 1.35;
}

/* =============================================================
   IPA PRIMER — shown once, at the very first A1 lesson
============================================================= */
.ipa-primer {
  margin-bottom: 22px;
  padding: 0;
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.10), rgba(96, 165, 250, 0.04));
  border: 1px solid rgba(125, 211, 252, 0.28);
  border-left: 3px solid #38bdf8;
  border-radius: 10px;
  overflow: hidden;
}
.ipa-primer-summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  user-select: none;
  font-weight: 600;
  color: #7dd3fc;
  transition: background 0.15s ease;
}
.ipa-primer-summary::-webkit-details-marker { display: none; }
.ipa-primer-summary:hover { background: rgba(56, 189, 248, 0.06); }
.ipa-primer-summary-icon { font-size: 1.15rem; }
.ipa-primer-summary-title { font-size: 1rem; flex: 1; }
.ipa-primer-summary-hint {
  font-size: 0.78rem;
  color: var(--la-muted);
  font-weight: 400;
  font-style: italic;
}
.ipa-primer[open] .ipa-primer-summary {
  border-bottom: 1px solid rgba(125, 211, 252, 0.18);
}
.ipa-primer-body {
  padding: 14px 18px 18px;
  font-size: 0.95rem;
  line-height: 1.6;
}
.ipa-primer-lede {
  margin-bottom: 10px;
  color: var(--la-text);
}
.ipa-primer-lede strong { color: #7dd3fc; }
.ipa-primer-tip {
  margin-bottom: 14px;
  padding: 10px 14px;
  background: rgba(96, 165, 250, 0.08);
  border-radius: 8px;
  font-size: 0.9rem;
}
.ipa-primer-tip code {
  font-family: var(--mono);
  background: rgba(96, 165, 250, 0.12);
  padding: 1px 5px;
  border-radius: 3px;
}
.ipa-primer-h {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--la-muted);
  margin-top: 14px;
  margin-bottom: 8px;
}
.ipa-primer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 6px 14px;
}
.ipa-primer-row {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 4px 0;
  font-size: 0.9rem;
}
.ipa-primer-sym {
  font-family: var(--mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: #7dd3fc;
  text-align: center;
}
.ipa-primer-cz { color: var(--la-text); }
.ipa-primer-ex { justify-self: end; }
.ipa-primer-foot {
  margin-top: 16px;
  font-size: 0.85rem;
}
.ipa-primer-foot code {
  font-family: var(--mono);
  background: rgba(255,255,255,0.04);
  padding: 1px 5px;
  border-radius: 3px;
}

/* Mistake pairs — visual ❌ wrong → ✅ correct rows */
.mistake-pairs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 10px 0 4px;
}
.mistake-pair {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: rgba(0, 0, 0, 0.18);
  border-radius: 8px;
  flex-wrap: wrap;
  font-size: 0.95rem;
}
.mistake-wrong, .mistake-correct {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.mistake-wrong .en-pill {
  background: rgba(251, 113, 133, 0.10);
  color: #fda4af;
  border-color: rgba(251, 113, 133, 0.32);
  text-decoration: line-through;
  text-decoration-color: rgba(251, 113, 133, 0.55);
}
.mistake-correct .en-pill {
  background: rgba(52, 211, 153, 0.10);
  color: #6ee7b7;
  border-color: rgba(52, 211, 153, 0.32);
}
.mistake-arrow { color: var(--la-muted); font-weight: 700; margin: 0 2px; }

/* Examples list — bigger, bolder English, muted Czech below */
.examples-list { list-style: none; display: flex; flex-direction: column; gap: 4px; margin-top: 4px; }
.examples-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  align-items: start;
  padding: 9px 0;
  border-bottom: 1px dashed var(--la-border);
}
.examples-list li:last-child { border-bottom: none; }
.examples-list .ex-text { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.examples-list .ex-en {
  font-family: var(--mono);
  font-size: 0.98rem;
  font-weight: 600;
  color: #7dd3fc;
  line-height: 1.4;
}
.examples-list .ex-cs {
  font-size: 0.88rem;
  color: var(--la-muted);
  font-style: italic;
  line-height: 1.4;
}
.tts-mini {
  background: transparent;
  border: 1px solid var(--la-border);
  color: var(--la-accent2);
  border-radius: 8px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 0.9rem;
}
.tts-mini:hover { background: var(--la-surface2); color: var(--la-accent); }

.lesson-cta { margin-top: 18px; text-align: center; }
.lesson-done { text-align: center; padding: 30px 20px; display: flex; flex-direction: column; gap: 14px; align-items: center; }
.lesson-done h1 { font-size: 1.8rem; }
.lesson-done-score { font-size: 2rem; font-weight: 700; color: var(--la-accent2); }
.lesson-done-bar {
  width: 100%; max-width: 420px;
  height: 14px;
  background: var(--la-surface2);
  border-radius: 7px;
  overflow: hidden;
}
.lesson-done-bar-fill { height: 100%; transition: width .6s ease; }
.lesson-done-ctas { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }

/* --- Exercise card (Grammar/Reading/Listening/Placement share this) --- */
.ex-wrap { display: flex; flex-direction: column; gap: 14px; }
.ex-head { display: flex; flex-direction: column; gap: 6px; margin-bottom: 4px; }
.ex-progress {
  height: 5px;
  background: var(--la-surface2);
  border-radius: 3px;
  overflow: hidden;
}
.ex-progress-bar {
  height: 100%;
  background: var(--la-accent);
  transition: width .25s ease;
}
.ex-counter { color: var(--la-muted); font-size: 0.78rem; letter-spacing: 0.4px; }

.ex-card {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 20px 22px;
  display: flex; flex-direction: column; gap: 14px;
}
.ex-prompt-label { color: var(--la-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; }
.ex-prompt { font-size: 1.12rem; line-height: 1.55; font-weight: 600; }
.ex-passage {
  border-left: 3px solid var(--la-accent-dim);
  padding: 10px 14px;
  background: rgba(167, 139, 250, 0.06);
  font-style: italic;
  border-radius: 0 8px 8px 0;
}
.ex-hint { color: var(--la-muted); font-size: 0.86rem; }
.ex-explanation { color: var(--la-warning); font-size: 0.9rem; line-height: 1.4; margin-top: 4px; }

.ex-options { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
.ex-options-tf { grid-template-columns: 1fr 1fr; max-width: 320px; }
.ex-option {
  background: var(--la-surface2);
  border: 2px solid var(--la-border);
  color: var(--la-text);
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.98rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: border-color .1s, background .1s;
}
.ex-option:hover:not(.correct):not(.wrong) { border-color: var(--la-accent-dim); background: var(--la-surface); }
.ex-option.correct { border-color: var(--la-success); background: rgba(52, 211, 153, 0.12); }
.ex-option.wrong   { border-color: var(--la-danger);  background: rgba(251, 113, 133, 0.12); }

.ex-input-wrap { display: flex; gap: 8px; }
.ex-input {
  flex: 1;
  background: var(--la-surface2);
  border: 2px solid var(--la-border);
  color: var(--la-text);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font);
}
.ex-input:focus { outline: none; border-color: var(--la-accent); }
.ex-input.correct { border-color: var(--la-success); }
.ex-input.wrong   { border-color: var(--la-danger); }

.ex-textarea {
  background: var(--la-surface2);
  border: 2px solid var(--la-border);
  color: var(--la-text);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font);
  width: 100%;
  resize: vertical;
}
.ex-textarea:focus { outline: none; border-color: var(--la-accent); }
.ex-textarea.correct { border-color: var(--la-success); }
.ex-textarea.wrong   { border-color: var(--la-danger); }

.ex-correct-answer {
  background: rgba(52, 211, 153, 0.08);
  border-left: 3px solid var(--la-success);
  padding: 8px 12px;
  font-size: 0.92rem;
  border-radius: 0 6px 6px 0;
}

.ex-feedback {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--la-border);
  background: var(--la-surface2);
}
.ex-feedback.ok { border-color: var(--la-success); background: rgba(52, 211, 153, 0.08); }
.ex-feedback.no { border-color: var(--la-danger);  background: rgba(251, 113, 133, 0.08); }
.btn-next { white-space: nowrap; }

/* --- Reading screen --- */
.read-wrap { display: flex; flex-direction: column; gap: 14px; }
.read-toolbar { display: flex; gap: 8px; flex-wrap: wrap; }
.read-text {
  font-size: 1.06rem; line-height: 1.75;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 22px 26px;
}
.read-word { cursor: pointer; padding: 1px 2px; border-radius: 3px; transition: background .1s; }
.read-word:hover { background: var(--la-surface2); }
.read-word.glossed { color: var(--la-accent2); border-bottom: 1px dotted var(--la-accent-dim); font-weight: 600; }
.read-glossary {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 14px 18px;
}
.read-glossary h3 { color: var(--la-accent2); font-size: 0.92rem; font-weight: 700; text-transform: uppercase; margin-bottom: 8px; letter-spacing: 0.4px; }
.glossary-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.glossary-list li { display: flex; gap: 8px; align-items: baseline; padding: 4px 0; border-bottom: 1px dashed var(--la-border); }
.glossary-list li:last-child { border-bottom: none; }
.glossary-list strong { color: var(--la-text); min-width: 100px; }
.listen-glossary summary { cursor: pointer; color: var(--la-accent2); font-weight: 600; padding: 6px 0; }

/* --- Listening screen --- */
.listen-wrap { display: flex; flex-direction: column; gap: 14px; }
.listen-controls {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 10px 14px;
}
.rate-control { display: flex; align-items: center; gap: 8px; font-size: 0.88rem; color: var(--la-muted); }
.rate-control input[type="range"] { width: 110px; }
.rate-val { color: var(--la-accent2); font-weight: 600; min-width: 48px; }

.transcript {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 16px 18px;
  display: flex; flex-direction: column; gap: 8px;
}
.transcript.hidden .tr-en { font-family: var(--mono); letter-spacing: -1px; }
.tr-line {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 8px 10px;
  padding: 8px 10px;
  border-radius: 8px;
  align-items: baseline;
  transition: background .2s;
}
.tr-line.current { background: rgba(167, 139, 250, 0.15); }
.tr-speaker { font-weight: 700; color: var(--la-accent2); font-size: 0.88rem; }
.tr-en { font-size: 0.98rem; }
.tr-cs { grid-column: 3; color: var(--la-muted); font-size: 0.85rem; font-style: italic; }

/* --- Pronunciation --- */
.subtabs { display: flex; gap: 6px; margin-bottom: 18px; border-bottom: 1px solid var(--la-border); }
.subtab {
  padding: 8px 14px;
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--la-muted);
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.subtab:hover { color: var(--la-text); text-decoration: none; }
.subtab.active { color: var(--la-accent2); border-bottom-color: var(--la-accent); }

.ipa-block { margin-bottom: 28px; }
.ipa-block h2 { font-size: 1.15rem; margin-bottom: 10px; color: var(--la-accent2); }
.ipa-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}
.ipa-cell {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 4px;
}
.ipa-symbol {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--la-accent);
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  padding: 0;
  width: fit-content;
}
.ipa-symbol:hover { color: var(--la-accent2); }
.ipa-example { font-size: 1rem; font-weight: 600; }
.ipa-audio { display: flex; gap: 6px; flex-wrap: wrap; margin: 1px 0 3px; }
.ipa-audio-btn {
  font-size: 0.9rem; font-weight: 600;
  color: var(--la-text);
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 999px;
  padding: 4px 12px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.ipa-audio-btn:hover { border-color: var(--la-accent); color: var(--la-accent); }
.ipa-audio-slow { padding: 4px 9px; }
.ipa-hint { color: var(--la-muted); font-size: 0.82rem; line-height: 1.4; }
.ipa-trap { color: var(--la-warning); font-size: 0.8rem; line-height: 1.4; }
.ipa-primer-sym-btn {
  background: transparent;
  border: none;
  padding: 2px 0;
  cursor: pointer;
}
.ipa-primer-sym-btn:hover { color: var(--la-accent); }

.pron-pairs-drill {
  display: flex; flex-direction: column; gap: 12px; align-items: center;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 14px;
  padding: 24px;
  text-align: center;
}
.pron-score { color: var(--la-accent2); font-weight: 700; }
.pair-play { margin: 8px 0; }
.btn-app-big { padding: 14px 30px; font-size: 1.1rem; }
.pair-choices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
  max-width: 480px;
}
.pair-word {
  background: var(--la-surface2);
  border: 2px solid var(--la-border);
  color: var(--la-text);
  padding: 16px 14px;
  border-radius: 12px;
  cursor: pointer;
  display: flex; flex-direction: column; gap: 4px;
  transition: border-color .1s, background .1s;
}
.pair-word:hover:not(.correct):not(.wrong) { border-color: var(--la-accent-dim); background: var(--la-surface); }
.pair-word.correct { border-color: var(--la-success); background: rgba(52, 211, 153, 0.12); }
.pair-word.wrong   { border-color: var(--la-danger);  background: rgba(251, 113, 133, 0.12); }
.pair-word strong { font-size: 1.25rem; }
.pair-ipa { font-family: var(--mono); color: var(--la-accent2); font-size: 0.9rem; }
.pair-sentence { font-size: 0.82rem; font-style: italic; }
.pron-contrast { font-size: 0.86rem; color: var(--la-muted); max-width: 480px; }
.pron-feedback { font-weight: 700; min-height: 20px; }
.pron-feedback.ok { color: var(--la-success); }
.pron-feedback.no { color: var(--la-danger); }

.twister-list { display: flex; flex-direction: column; gap: 12px; }
.twister-item {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 16px 18px;
}
.twister-text { font-size: 1.15rem; font-weight: 600; line-height: 1.5; margin-bottom: 4px; }
.twister-focus { margin-bottom: 8px; }
.twister-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.twister-level {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--la-accent2);
  background: var(--la-surface2);
  padding: 3px 8px;
  border-radius: 999px;
}

/* --- Placement test --- */
.placement-intro { background: var(--la-surface); border: 1px solid var(--la-border); border-radius: 14px; padding: 22px 24px; display: flex; flex-direction: column; gap: 14px; }
.placement-meta p { color: var(--la-text); }
.placement-last {
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 12px 16px;
}
.placement-last h3 { font-size: 0.92rem; color: var(--la-accent2); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.4px; }
.placement-last p { font-size: 0.95rem; margin-bottom: 4px; }
.placement-result {
  display: flex; flex-direction: column; gap: 16px; align-items: center;
  padding: 30px 20px; text-align: center;
}
.placement-result h1 { font-size: 1.7rem; }
.placement-score { font-size: 2.4rem; font-weight: 700; color: var(--la-accent2); }
.placement-level-wrap { display: flex; flex-direction: column; gap: 8px; align-items: center; }
.placement-breakdown { width: 100%; max-width: 480px; display: flex; flex-direction: column; gap: 6px; }
.breakdown-row {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 10px;
  align-items: center;
}
.breakdown-score { color: var(--la-muted); font-size: 0.88rem; min-width: 50px; }
.breakdown-bar {
  height: 8px;
  background: var(--la-surface2);
  border-radius: 4px;
  overflow: hidden;
}
.breakdown-bar-fill { height: 100%; }

/* =============================================================
   KNOWLEDGE MAP — graph viz + list + concept modal
============================================================= */
.mastery-summary { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.mastery-bar { display: flex; height: 10px; border-radius: 5px; overflow: hidden; background: var(--la-surface2); }
.mastery-bar-seg { display: block; height: 100%; }
.mastery-legend { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.82rem; }
.mastery-legend-chip { display: inline-flex; align-items: center; gap: 5px; }
.mastery-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.mastery-dot-big { width: 16px; height: 16px; }

.graph-wrap {
  position: relative;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  overflow: hidden;       /* pan/zoom owns the visible area */
  padding: 0;
  height: 70vh;
  min-height: 480px;
}
.concept-graph { width: 100%; height: 100%; display: block; cursor: grab; user-select: none; touch-action: none; }
.concept-graph:active { cursor: grabbing; }
.graph-stage { transition: none; }
.graph-node:hover rect { stroke-width: 3; filter: brightness(1.15); }
.graph-edge { transition: stroke .15s; pointer-events: none; }

.graph-controls {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(19, 26, 46, 0.85);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 4px;
  backdrop-filter: blur(6px);
  z-index: 2;
}
.graph-ctrl-btn {
  background: transparent;
  border: none;
  color: var(--la-text);
  width: 32px; height: 32px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  transition: background .12s;
}
.graph-ctrl-btn:hover { background: var(--la-surface2); }
.graph-hint {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-size: 0.78rem;
  background: rgba(19, 26, 46, 0.7);
  border: 1px solid var(--la-border);
  border-radius: 8px;
  padding: 5px 10px;
  pointer-events: none;
  backdrop-filter: blur(4px);
}

.concept-list { display: flex; flex-direction: column; }
.concept-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 6px;
  margin-bottom: 10px;
}
.concept-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 8px 12px;
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  color: inherit;
  font: inherit;
  transition: background .12s, border-color .12s;
}
.concept-row:hover { background: var(--la-surface2); border-color: var(--la-accent-dim); }
.concept-row-label { text-align: left; }
.concept-row-en { font-size: 0.82rem; }
.concept-row-pct { font-weight: 700; font-size: 0.86rem; }

/* Concept detail modal — reuse existing modal styles + custom content */
.modal-concept .concept-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 12px; }
.modal-concept .concept-head h2 { font-size: 1.3rem; margin: 0 0 0 4px; flex: 1; }
.concept-kind {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: #0a0e1a;
}
.concept-mastery {
  display: flex; align-items: center; gap: 10px;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 12px;
}
.concept-mastery-label { font-weight: 600; flex: 1; }
.concept-mastery-pct { font-weight: 700; font-size: 1.1rem; }
.concept-desc { margin-bottom: 12px; line-height: 1.55; }
.concept-prereqs { background: var(--la-surface2); border: 1px solid var(--la-border); border-radius: 8px; padding: 10px 14px; margin-bottom: 12px; }
.concept-prereqs h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.4px; color: var(--la-muted); margin-bottom: 6px; }
.concept-prereqs ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.concept-prereq-row { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.concept-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* =============================================================
   WRITING MENTOR
============================================================= */
.llm-panel {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 14px;
  display: flex; flex-direction: column; gap: 10px;
}
.llm-panel.on { border-color: var(--la-success); }
.llm-status { display: flex; align-items: center; gap: 10px; }
.llm-dot { width: 10px; height: 10px; border-radius: 50%; }
.llm-dot.on { background: var(--la-success); }
.llm-dot.off { background: var(--la-muted); }
.llm-dot.load { background: var(--la-warning); animation: pulse 1s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.llm-status-label { font-weight: 600; }
.llm-progress-wrap { display: flex; flex-direction: column; gap: 4px; }
.llm-progress { width: 100%; height: 8px; background: var(--la-surface2); border-radius: 4px; overflow: hidden; }
.llm-progress-bar { height: 100%; background: var(--la-accent); transition: width .3s ease; }
.llm-progress-label { font-size: 0.78rem; margin: 0; }
.llm-progress-hint {
  font-size: 0.82rem;
  font-style: italic;
  padding: 6px 10px;
  background: rgba(167, 139, 250, 0.08);
  border-left: 3px solid var(--la-accent-dim);
  border-radius: 0 6px 6px 0;
  line-height: 1.4;
  margin: 4px 0 0;
}
.llm-error { color: var(--la-danger); font-size: 0.88rem; line-height: 1.4; }
.llm-models { display: flex; flex-direction: column; gap: 10px; }
.llm-hint { font-size: 0.84rem; line-height: 1.4; }
.llm-model-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.llm-model-row {
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 6px;
}
.llm-model-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.llm-model-meta strong { font-size: 1rem; }
.llm-model-size { font-size: 0.82rem; }
.llm-model-desc { font-size: 0.84rem; line-height: 1.45; margin: 0; }
.llm-badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
}
.llm-badge-rec { background: rgba(34, 197, 94, 0.18); color: #4ade80; }
.llm-badge-cached { background: rgba(96, 165, 250, 0.15); color: #93c5fd; }
.llm-model-btn { align-self: flex-start; }
.llm-about {
  margin-top: 4px;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 8px;
  padding: 8px 12px;
}
.llm-about summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--la-accent2);
}
.llm-about p { margin-top: 8px; font-size: 0.85rem; line-height: 1.5; }

.writing-input {
  width: 100%;
  background: var(--la-surface2);
  border: 2px solid var(--la-border);
  color: var(--la-text);
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 1rem;
  font-family: var(--font);
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
  margin-bottom: 12px;
}
.writing-input:focus { outline: none; border-color: var(--la-accent); }
.writing-controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }

.writing-result {
  background: var(--la-surface);
  border: 1px solid var(--la-border);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex; flex-direction: column; gap: 14px;
}
.writing-result-ok { border-color: var(--la-success); background: rgba(52, 211, 153, 0.05); }
.writing-result-fix { border-color: var(--la-warning); background: rgba(251, 191, 36, 0.05); }
.writing-result-err { border-color: var(--la-danger); }
.writing-result-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.writing-tier-badge {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
}
.writing-tier-badge.tier-llm { background: rgba(167, 139, 250, 0.15); border-color: var(--la-accent-dim); color: var(--la-accent2); }
.writing-tier-badge.tier-rules { color: var(--la-accent2); }
.writing-score { font-size: 1.3rem; font-weight: 700; }
.writing-ok { color: var(--la-success); font-weight: 600; }
.writing-fix { color: var(--la-warning); font-weight: 600; }

.writing-corrected h4, .writing-explain h4, .writing-mistakes h4 {
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.4px;
  color: var(--la-muted); margin-bottom: 6px;
}
.writing-corrected-text {
  background: var(--la-surface2);
  border-left: 3px solid var(--la-success);
  padding: 10px 14px;
  border-radius: 0 8px 8px 0;
  font-family: var(--font);
  line-height: 1.55;
}
.writing-explain p { line-height: 1.55; }

.writing-mistakes ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.writing-mistake-item {
  background: var(--la-surface2);
  border: 1px solid var(--la-border);
  border-radius: 10px;
  padding: 10px 14px;
}
.writing-wrong {
  background: rgba(251, 113, 133, 0.15);
  color: var(--la-danger);
  padding: 2px 6px;
  border-radius: 4px;
  text-decoration: line-through;
}
.writing-right {
  background: rgba(52, 211, 153, 0.15);
  color: var(--la-success);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}
.writing-arrow { color: var(--la-muted); }
.writing-mistake-expl { font-size: 0.9rem; margin-top: 6px; line-height: 1.4; }
.writing-mistake-examples { font-size: 0.82rem; margin-top: 4px; }
.writing-mistake-link { display: inline-block; margin-top: 6px; font-size: 0.85rem; color: var(--la-accent2); }

.writing-tier-hint {
  margin-top: 4px;
  padding: 12px 16px;
  background: rgba(96, 165, 250, 0.06);
  border: 1px solid rgba(96, 165, 250, 0.25);
  border-left: 3px solid var(--la-info);
  border-radius: 0 8px 8px 0;
}
.writing-tier-hint-head { font-size: 0.92rem; color: var(--la-info); margin-bottom: 4px; }
.writing-tier-hint-body { font-size: 0.86rem; line-height: 1.5; color: var(--la-text); margin-bottom: 6px; }
.writing-tier-hint-meta { font-size: 0.78rem; line-height: 1.45; margin-bottom: 10px; }
.writing-tier-hint-cta { margin: 0; }
.writing-busy-llm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--la-info);
  font-weight: 500;
}
.writing-llm-err {
  margin-top: 10px;
  padding: 8px 12px;
  background: rgba(239, 68, 68, 0.08);
  border-left: 3px solid var(--la-danger, #ef4444);
  border-radius: 0 6px 6px 0;
  font-size: 0.85rem;
}
.btn-app-sm { padding: 5px 12px; font-size: 0.82rem; }

/* --- Responsive tweaks --- */
@media (max-width: 640px) {
  .dashboard-goal { flex-direction: column; align-items: stretch; text-align: center; }
  .dashboard-goal-text { text-align: center; }
  .goal-controls { justify-content: center; }
  .streak-pill { margin-left: 0; }
  .pair-choices { grid-template-columns: 1fr; }
  .examples-list li { grid-template-columns: auto 1fr; }
  .ex-cs { grid-column: 2; }
  .concept-list-grid { grid-template-columns: 1fr; }
  .writing-result-head { gap: 6px; }
}