/* ═══════════════════════════════════════════════════
   LGG Lexicon v3 — Flagship CSS
   Light-first · Mobile-first · Webapp quality
   Designed & Developed by Subhendu Sahu | lggclass.com
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,600;0,9..144,700;1,9..144,400&family=Inter:wght@300;400;500;600&display=swap');

/* ── TOKENS ─────────────────────────────────────────── */
.lgv-app {
  /* Light palette */
  --bg:          #f8f7f4;
  --bg2:         #eeecea;
  --surface:     #ffffff;
  --surface2:    #f3f2ef;
  --border:      #e2e0dc;
  --border2:     #ccc9c3;
  --text:        #1c1a17;
  --text2:       #6b6660;
  --text3:       #9c9790;

  /* Brand */
  --ink:         #1c1a17;
  --gold:        #c8902a;
  --gold-light:  #f5e6c8;
  --indigo:      #3d2fa0;
  --indigo-pale: #ece9fa;
  --emerald:     #1a7a52;
  --emerald-pale:#d6f0e6;
  --rose:        #b83232;
  --rose-pale:   #fae0e0;
  --amber:       #a06010;
  --amber-pale:  #faebd0;
  --violet:      #6a34c8;
  --violet-pale: #ede8fa;

  /* Shadows */
  --shadow-sm:  0 1px 4px rgba(0,0,0,.07);
  --shadow-md:  0 4px 16px rgba(0,0,0,.1);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.12);
  --shadow-card:0 2px 8px rgba(0,0,0,.06), 0 8px 32px rgba(0,0,0,.08);

  /* Radius */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* Type */
  --f-display: 'Fraunces', Georgia, serif;
  --f-body:    'Inter', system-ui, sans-serif;

  /* Transitions */
  --t-fast: .15s ease;
  --t-med:  .25s ease;
  --t-slow: .4s ease;
}

/* ── DARK THEME ─────────────────────────────────────── */
.lgv-app[data-theme="dark"] {
  --bg:          #131210;
  --bg2:         #1c1a17;
  --surface:     #1f1d1a;
  --surface2:    #272420;
  --border:      #38342e;
  --border2:     #4a4540;
  --text:        #f0ece6;
  --text2:       #a09890;
  --text3:       #706860;
  --gold:        #e8a840;
  --gold-light:  #3a2e10;
  --indigo:      #7b6ee8;
  --indigo-pale: #1e1a3a;
  --emerald:     #3ac880;
  --emerald-pale:#0e2a1e;
  --rose:        #e85858;
  --rose-pale:   #2a0e0e;
  --amber:       #d08030;
  --amber-pale:  #2a1e08;
  --violet:      #a882f0;
  --violet-pale: #1e1230;
  --shadow-sm:   0 1px 4px rgba(0,0,0,.3);
  --shadow-md:   0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:   0 12px 40px rgba(0,0,0,.5);
  --shadow-card: 0 2px 8px rgba(0,0,0,.3), 0 8px 32px rgba(0,0,0,.4);
}

/* ── RESET ──────────────────────────────────────────── */
.lgv-app *, .lgv-app *::before, .lgv-app *::after {
  box-sizing: border-box; margin: 0; padding: 0;
  -webkit-font-smoothing: antialiased;
}
.lgv-app {
  font-family: var(--f-body);
  background: var(--bg);
  color: var(--text);
  min-height: auto;
  transition: background var(--t-med), color var(--t-med);
  position: relative;
  overflow-x: hidden;
}

/* ── SCREENS ────────────────────────────────────────── */
.lgv-screen {
  display: none;
  padding: 0 16px 40px;
  max-width: 680px;
  margin: 0 auto;
  animation: lgv-up .35s ease both;
}
.lgv-screen.lgv-active { display: block; }
@keyframes lgv-up {
  from { opacity:0; transform:translateY(14px); }
  to   { opacity:1; transform:none; }
}

/* ── TOPBAR ─────────────────────────────────────────── */
.lgv-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.lgv-brand { display:flex; align-items:baseline; gap:7px; }
.lgv-brand-mark {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--gold);
  letter-spacing: -1px;
}
.lgv-brand-name {
  font-family: var(--f-display);
  font-weight: 300;
  font-size: 1rem;
  color: var(--text2);
  letter-spacing: .5px;
}
.lgv-topbar-right { display:flex; align-items:center; gap:10px; }
.lgv-streak {
  font-size: .8rem;
  font-weight: 600;
  color: var(--amber);
  background: var(--amber-pale);
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
}
.lgv-theme-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--t-fast);
  color: var(--text);
}
.lgv-theme-btn:hover { border-color: var(--gold); transform: scale(1.08); }

/* ── HOME HERO ──────────────────────────────────────── */
.lgv-home-hero {
  padding: 36px 0 28px;
  text-align: center;
}
.lgv-hero-label {
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.lgv-hero-title {
  font-family: var(--f-display);
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 12px;
}
.lgv-hero-title em {
  font-style: normal;
  color: var(--indigo);
  position: relative;
}
.lgv-hero-title em::after {
  content:'';
  position: absolute;
  bottom: 2px; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--indigo), var(--gold));
  border-radius: 2px;
  opacity: .5;
}
.lgv-hero-sub {
  font-size: .85rem;
  color: var(--text2);
  letter-spacing: .3px;
}

/* ── STATS ROW ──────────────────────────────────────── */
.lgv-stats-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 28px;
}
.lgv-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 10px 16px;
  text-align: center;
  min-width: 80px;
  box-shadow: var(--shadow-sm);
  flex: 1 1 70px;
  max-width: 120px;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.lgv-stat:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.lgv-stat-num {
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}
.lgv-stat-lbl {
  font-size: .65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text3);
  margin-top: 3px;
}
.lgv-stat.new     .lgv-stat-num { color: var(--indigo); }
.lgv-stat.easy    .lgv-stat-num { color: var(--emerald); }
.lgv-stat.medium  .lgv-stat-num { color: var(--amber); }
.lgv-stat.hard    .lgv-stat-num { color: var(--rose); }
.lgv-stat.mastered.lgv-stat-num { color: var(--violet); }

/* ── MODE TILES ─────────────────────────────────────── */
.lgv-mode-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.lgv-mode-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  text-align: left;
  transition: all var(--t-fast);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  color: var(--text);
}
.lgv-mode-tile::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: transparent;
  border-radius: 4px 0 0 4px;
  transition: background var(--t-fast);
}
.lgv-mode-tile[data-mode="learn"]::before  { background: var(--indigo); }
.lgv-mode-tile[data-mode="mcq"]::before    { background: var(--gold); }
.lgv-mode-tile[data-mode="tf"]::before     { background: var(--emerald); }
.lgv-mode-tile[data-mode="fill"]::before   { background: var(--rose); }

.lgv-mode-tile:hover {
  border-color: var(--border2);
  transform: translateX(3px);
  box-shadow: var(--shadow-md);
}
.lgv-mode-glyph { font-size: 1.6rem; flex-shrink: 0; width: 40px; text-align: center; }
.lgv-mode-body  { flex: 1; }
.lgv-mode-name  {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 3px;
}
.lgv-mode-hint  { font-size: .78rem; color: var(--text2); line-height: 1.4; }
.lgv-mode-arrow { color: var(--text3); font-size: 1.1rem; flex-shrink:0; transition: transform var(--t-fast); }
.lgv-mode-tile:hover .lgv-mode-arrow { transform: translateX(4px); color: var(--gold); }

/* ── WORDMAP ────────────────────────────────────────── */
.lgv-wordmap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}
.lgv-section-label {
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text3);
  text-transform: uppercase;
}
.lgv-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  color: var(--text2);
}
.lgv-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 2px;
}
.lgv-dot.new      { background: var(--indigo); }
.lgv-dot.easy     { background: var(--emerald); }
.lgv-dot.medium   { background: var(--amber); }
.lgv-dot.hard     { background: var(--rose); }
.lgv-dot.mastered { background: var(--violet); }

.lgv-wordmap {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 20px;
}
.lgv-chip-word {
  font-size: .72rem;
  padding: 3px 9px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text2);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--f-body);
}
.lgv-chip-word:hover { border-color: var(--gold); color: var(--gold); }
.lgv-chip-word.new      { border-color: rgba(61,47,160,.35); color: var(--indigo); }
.lgv-chip-word.easy     { border-color: rgba(26,122,82,.35);  color: var(--emerald); }
.lgv-chip-word.medium   { border-color: rgba(160,96,16,.35);  color: var(--amber); }
.lgv-chip-word.hard     { border-color: rgba(184,50,50,.4);   color: var(--rose); background: var(--rose-pale); }
.lgv-chip-word.mastered { border-color: rgba(106,52,200,.3);  color: var(--violet); }

/* ── SHEET (size picker) ────────────────────────────── */
.lgv-sheet {
  background: var(--surface);
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  padding: 28px 24px 32px;
  margin-top: 24px;
  box-shadow: var(--shadow-card);
}
.lgv-sheet-title {
  font-family: var(--f-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text);
  margin: 16px 0 24px;
}
.lgv-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 7px 14px;
  border-radius: 20px;
  font-size: .83rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--f-body);
}
.lgv-back:hover { border-color: var(--gold); color: var(--gold); }

.lgv-size-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
@media(max-width:400px){ .lgv-size-grid { grid-template-columns: repeat(2,1fr); } }

.lgv-size-btn {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all var(--t-fast);
  color: var(--text);
}
.lgv-size-btn:hover {
  border-color: var(--indigo);
  background: var(--indigo-pale);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.lgv-size-num {
  font-family: var(--f-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}
.lgv-size-sub {
  font-size: .7rem;
  color: var(--text3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.lgv-size-all {
  grid-column: span 3;
  flex-direction: row;
  justify-content: center;
  gap: 10px;
  border-color: var(--gold);
  background: var(--gold-light);
}
.lgv-size-all .lgv-size-num { color: var(--gold); }
@media(max-width:400px){ .lgv-size-all { grid-column: span 2; } }

/* Toggles */
.lgv-filters { display:flex; flex-direction:column; gap:14px; }
.lgv-toggle-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .88rem;
  color: var(--text2);
  cursor: pointer;
}
.lgv-toggle-input { display:none; }
.lgv-toggle-track {
  flex-shrink: 0;
  width: 42px; height: 24px;
  background: var(--border);
  border-radius: 12px;
  position: relative;
  transition: background var(--t-fast);
}
.lgv-toggle-thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
  transition: transform var(--t-fast);
}
.lgv-toggle-input:checked ~ .lgv-toggle-track { background: var(--indigo); }
.lgv-toggle-input:checked ~ .lgv-toggle-track .lgv-toggle-thumb { transform: translateX(18px); }

/* ── SESSION BAR ────────────────────────────────────── */
.lgv-session-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0 18px;
  flex-wrap: wrap;
}
.lgv-arc-wrap {
  position: relative;
  width: 44px; height: 44px;
  flex-shrink: 0;
}
.lgv-arc-svg { width:44px; height:44px; transform: rotate(-90deg); }
.lgv-arc-bg  { stroke: var(--border2); }
.lgv-arc-fg  { stroke: var(--gold); transition: stroke-dashoffset var(--t-slow); }
.lgv-arc-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .6rem;
  font-weight: 700;
  color: var(--text2);
}
.lgv-score-chips { display:flex; gap:7px; margin-left:auto; }
.lgv-score-chip {
  font-size: .8rem;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 16px;
  border: 1px solid transparent;
}
.lgv-score-chip.correct { background:var(--emerald-pale); color:var(--emerald); border-color:rgba(26,122,82,.2); }
.lgv-score-chip.wrong   { background:var(--rose-pale);    color:var(--rose);    border-color:rgba(184,50,50,.2); }

/* ── STUDY CARD ─────────────────────────────────────── */
.lgv-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
  padding: clamp(20px,5vw,36px);
  margin-bottom: 20px;
  animation: lgv-card-in .3s ease;
  position: relative;
  overflow: hidden;
}
.lgv-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--indigo), var(--gold), var(--emerald));
}
@keyframes lgv-card-in {
  from { opacity:0; transform: translateY(10px) scale(.99); }
  to   { opacity:1; transform: none; }
}

.lgv-card-diff-badge {
  position: absolute;
  top: 16px; right: 16px;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .6px;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 10px;
}
.lgv-card-diff-badge.new      { background:var(--indigo-pale); color:var(--indigo); }
.lgv-card-diff-badge.easy     { background:var(--emerald-pale);color:var(--emerald); }
.lgv-card-diff-badge.medium   { background:var(--amber-pale);  color:var(--amber); }
.lgv-card-diff-badge.hard     { background:var(--rose-pale);   color:var(--rose); }
.lgv-card-diff-badge.mastered { background:var(--violet-pale); color:var(--violet); }

.lgv-card-word {
  font-family: var(--f-display);
  font-size: clamp(2rem, 7vw, 3rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.05;
  margin-bottom: 6px;
  padding-right: 80px;
}
.lgv-card-ipa {
  font-size: .9rem;
  color: var(--indigo);
  font-style: italic;
  margin-bottom: 2px;
  font-family: var(--f-display);
  font-weight: 300;
}
.lgv-card-pos {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text3);
  font-weight: 600;
  margin-bottom: 16px;
}
.lgv-speak-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--indigo-pale);
  color: var(--indigo);
  border: 1px solid rgba(61,47,160,.2);
  border-radius: 20px;
  padding: 5px 13px;
  font-size: .78rem;
  font-weight: 500;
  cursor: pointer;
  margin-bottom: 16px;
  transition: all var(--t-fast);
  font-family: var(--f-body);
}
.lgv-speak-pill:hover { background: var(--indigo); color:#fff; }

.lgv-card-meaning {
  font-size: clamp(.9rem, 2.5vw, 1rem);
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.lgv-card-chips {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 18px;
}
@media(max-width:400px){ .lgv-card-chips{grid-template-columns:1fr;} }

.lgv-chip {
  background: var(--surface2);
  border-radius: var(--r-md);
  padding: 12px 14px;
  border: 1px solid var(--border);
}
.lgv-chip.syn .lgv-chip-val { color: var(--emerald); }
.lgv-chip.ant .lgv-chip-val { color: var(--rose); }
.lgv-chip-label {
  display: block;
  font-size: .63rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text3);
  margin-bottom: 4px;
}
.lgv-chip-val {
  font-size: .84rem;
  line-height: 1.5;
  font-weight: 500;
}

.lgv-card-examples { display:flex; flex-direction:column; gap:10px; }
.lgv-example {
  font-size: .85rem;
  line-height: 1.65;
  color: var(--text2);
  padding: 10px 14px 10px 16px;
  border-left: 3px solid var(--gold);
  background: var(--gold-light);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-style: italic;
}
.lgv-app[data-theme="dark"] .lgv-example { background: rgba(200,144,42,.08); }

/* Study footer */
.lgv-study-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.lgv-diff-bar {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  justify-content: center;
}
.lgv-diff-pill {
  border-radius: 20px;
  padding: 6px 14px;
  font-size: .78rem;
  font-weight: 600;
  border: 1.5px solid;
  cursor: pointer;
  transition: all var(--t-fast);
  background: transparent;
  font-family: var(--f-body);
}
.lgv-diff-pill.easy   { border-color: var(--emerald); color: var(--emerald); }
.lgv-diff-pill.medium { border-color: var(--amber);   color: var(--amber); }
.lgv-diff-pill.hard   { border-color: var(--rose);    color: var(--rose); }
.lgv-diff-pill.easy:hover,   .lgv-diff-pill.easy.active   { background:var(--emerald-pale); }
.lgv-diff-pill.medium:hover, .lgv-diff-pill.medium.active { background:var(--amber-pale); }
.lgv-diff-pill.hard:hover,   .lgv-diff-pill.hard.active   { background:var(--rose-pale); }

/* ── QUIZ ZONE ──────────────────────────────────────── */
.lgv-quiz-word-zone {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 20px 22px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.lgv-quiz-word-zone::before {
  content:'';
  position:absolute;
  top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--gold),var(--indigo));
}
.lgv-quiz-word-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}
.lgv-quiz-word {
  font-family: var(--f-display);
  font-size: clamp(1.7rem,5vw,2.5rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.1;
}
.lgv-speak-icon {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 38px; height: 38px;
  display: flex; align-items:center; justify-content:center;
  cursor: pointer;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 4px;
  transition: all var(--t-fast);
  color: var(--text);
}
.lgv-speak-icon:hover { border-color:var(--indigo); transform:scale(1.1); }
.lgv-quiz-ipa {
  font-size: .83rem;
  color: var(--indigo);
  font-style: italic;
  margin-top: 4px;
  font-family: var(--f-display);
}
.lgv-quiz-pos {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .7px;
  color: var(--text3);
  font-weight: 600;
  margin-top: 3px;
}

.lgv-quiz-prompt {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px 18px;
  font-size: clamp(.88rem,2.5vw,.98rem);
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--indigo);
}

/* Quiz options */
.lgv-quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin-bottom: 16px;
}
@media(max-width:460px){ .lgv-quiz-options{grid-template-columns:1fr;} }

.lgv-opt {
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 14px 15px;
  border-radius: var(--r-md);
  font-size: .86rem;
  line-height: 1.45;
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--f-body);
  text-align: left;
  position: relative;
  overflow: hidden;
}
.lgv-opt:hover:not(:disabled) {
  border-color: var(--indigo);
  background: var(--indigo-pale);
  transform: translateY(-1px);
}
.lgv-opt.correct {
  border-color: var(--emerald);
  background: var(--emerald-pale);
  color: var(--emerald);
  font-weight: 600;
}
.lgv-opt.wrong {
  border-color: var(--rose);
  background: var(--rose-pale);
  color: var(--rose);
}
.lgv-opt.correct::after { content:'✓'; position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:1rem; }
.lgv-opt.wrong::after   { content:'✗'; position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:1rem; }
.lgv-opt:disabled { cursor:default; }

/* Fill input */
.lgv-fill-hint {
  font-size: .78rem;
  color: var(--text3);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 6px 12px;
  margin-bottom: 10px;
  display: inline-block;
}
.lgv-fill-row { display:flex; gap:9px; margin-bottom:14px; }
.lgv-fill-inp {
  flex: 1;
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--text);
  padding: 12px 16px;
  border-radius: var(--r-md);
  font-size: .95rem;
  font-family: var(--f-body);
  transition: border-color var(--t-fast);
  outline: none;
}
.lgv-fill-inp:focus { border-color: var(--indigo); box-shadow: 0 0 0 3px var(--indigo-pale); }
.lgv-fill-inp.correct { border-color:var(--emerald); background:var(--emerald-pale); }
.lgv-fill-inp.wrong   { border-color:var(--rose);    background:var(--rose-pale); }

/* ── FEEDBACK ───────────────────────────────────────── */
.lgv-feedback {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 20px 20px 16px;
  animation: lgv-up .25s ease;
  box-shadow: var(--shadow-md);
}
.lgv-feedback.lgv-show { display:block; }
.lgv-feedback-result {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.lgv-feedback-result.ok   { color:var(--emerald); }
.lgv-feedback-result.fail { color:var(--rose); }
.lgv-feedback-body {
  font-size: .84rem;
  line-height: 1.7;
  color: var(--text2);
  margin-bottom: 14px;
}
.lgv-feedback-body strong { color:var(--text); }
.lgv-feedback-body .lgv-fb-ex {
  display:block;
  font-style:italic;
  margin-top:6px;
  padding:8px 12px;
  background:var(--gold-light);
  border-left:3px solid var(--gold);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--text2);
}
.lgv-app[data-theme="dark"] .lgv-feedback-body .lgv-fb-ex { background:rgba(200,144,42,.08); }

/* ── BUTTONS ────────────────────────────────────────── */
.lgv-nav-btn {
  padding: 11px 22px;
  border-radius: 24px;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--f-body);
  border: none;
}
.lgv-nav-btn.primary {
  background: linear-gradient(135deg, var(--indigo), #5a4cc0);
  color: #fff;
  box-shadow: 0 3px 12px rgba(61,47,160,.35);
}
.lgv-nav-btn.primary:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(61,47,160,.45); }
.lgv-nav-btn.secondary {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  color: var(--text2);
}
.lgv-nav-btn.secondary:hover { border-color:var(--gold); color:var(--gold); }
.lgv-full-btn { display:block; width:100%; text-align:center; }

/* ── RESULTS ────────────────────────────────────────── */
.lgv-results-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 36px 28px 32px;
  margin-top: 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.lgv-results-card::before {
  content:'';
  position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--indigo),var(--gold),var(--emerald));
}
.lgv-results-emoji { font-size:3rem; margin-bottom:12px; }
.lgv-results-pct {
  font-family: var(--f-display);
  font-size: clamp(3rem,10vw,4.5rem);
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.lgv-results-line { font-size:.9rem; color:var(--text2); margin-bottom:22px; }
.lgv-results-bars {
  display:flex;
  gap:10px;
  justify-content:center;
  margin-bottom:22px;
  flex-wrap:wrap;
}
.lgv-res-bar {
  flex:1; min-width:90px; max-width:140px;
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r-md);
  padding:12px 10px;
}
.lgv-res-bar-num {
  font-family:var(--f-display);
  font-size:1.6rem;
  font-weight:700;
  line-height:1;
}
.lgv-res-bar-num.ok   { color:var(--emerald); }
.lgv-res-bar-num.fail { color:var(--rose); }
.lgv-res-bar-lbl { font-size:.65rem; color:var(--text3); text-transform:uppercase; letter-spacing:.7px; margin-top:4px; }

.lgv-missed-section { text-align:left; margin-bottom:24px; }
.lgv-missed-hd {
  font-size:.65rem;font-weight:700;letter-spacing:1.2px;
  text-transform:uppercase;color:var(--text3);margin-bottom:10px;
}
.lgv-missed-list {
  display:flex; flex-direction:column; gap:7px;
  max-height:220px; overflow-y:auto;
}
.lgv-missed-item {
  background:var(--surface2);
  border:1px solid var(--border);
  border-radius:var(--r-md);
  padding:9px 14px;
  font-size:.83rem;
  border-left:3px solid var(--rose);
}
.lgv-missed-item strong { color:var(--rose); }
.lgv-results-btns { display:flex; gap:10px; justify-content:center; flex-wrap:wrap; }

/* ── SCROLLBAR ──────────────────────────────────────── */
.lgv-app ::-webkit-scrollbar{width:4px;}
.lgv-app ::-webkit-scrollbar-track{background:transparent;}
.lgv-app ::-webkit-scrollbar-thumb{background:var(--border2);border-radius:4px;}

/* ── MOBILE ─────────────────────────────────────────── */
@media(max-width:580px){
  .lgv-study-footer{flex-direction:column;align-items:stretch;}
  .lgv-study-footer .lgv-nav-btn{width:100%;text-align:center;}
  .lgv-diff-bar{justify-content:stretch;}
  .lgv-diff-pill{flex:1;text-align:center;}
}

/* ── REDUCED MOTION ─────────────────────────────────── */
@media(prefers-reduced-motion:reduce){
  .lgv-app *{animation-duration:.01ms!important;transition-duration:.01ms!important;}
}

/* ═══════════════════════════════════════════
   A–Z ALPHABET NAV
   ═══════════════════════════════════════════ */
.lgv-alpha-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
  margin: 14px 0 8px;
}
.lgv-alpha-btn {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
  line-height: 1;
}
.lgv-alpha-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.lgv-alpha-empty    { opacity: .28; pointer-events: none; }

/* ═══════════════════════════════════════════
   WORDMAP LETTER DIVIDERS
   ═══════════════════════════════════════════ */
.lgv-wm-letter {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 6px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--border);
}
.lgv-wm-letter-char  { font-size: 20px; font-weight: 800; color: var(--accent); line-height: 1; }
.lgv-wm-letter-count { font-size: 11px; color: var(--text-muted); font-weight: 500; }

/* ═══════════════════════════════════════════
   LEVELS SECTION  (Home screen)
   ═══════════════════════════════════════════ */
.lgv-levels-section { margin: 28px 0 0; }
.lgv-levels-heading {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.lgv-levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}
@media(max-width:460px){ .lgv-levels-grid { grid-template-columns: repeat(2,1fr); } }

.lgv-level-tile {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  text-align: left;
  cursor: pointer;
  transition: box-shadow .2s, border-color .2s, transform .15s;
}
.lgv-level-tile:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(99,102,241,.15); transform: translateY(-2px); }
.lgv-level-done       { border-color: #22c55e; background: rgba(34,197,94,.07); }
.lgv-level-done:hover { border-color: #16a34a; }

.lgv-lt-top  { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.lgv-lt-num  { font-size: 13px; font-weight: 700; color: var(--text); }
.lgv-lt-badge{ font-size: 16px; }
.lgv-lt-range{ font-size: 10px; color: var(--text-muted); margin-bottom: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lgv-lt-bar  { height: 5px; background: var(--border); border-radius: 99px; overflow: hidden; margin-bottom: 6px; }
.lgv-lt-bar.big { height: 8px; margin: 10px 0; }
.lgv-lt-fill { height: 100%; background: var(--accent); border-radius: 99px; transition: width .4s ease; }
.lgv-level-done .lgv-lt-fill { background: #22c55e; }
.lgv-lt-pct  { font-size: 10px; color: var(--text-muted); font-weight: 600; }

/* ═══════════════════════════════════════════
   LEVEL DETAIL SCREEN
   ═══════════════════════════════════════════ */
.lgv-level-sub  { font-size: 13px; color: var(--text-muted); margin: 4px 0 0; }
.lgv-level-prog { font-size: 12px; color: var(--text-muted); margin: 2px 0 16px; }
.lgv-level-complete-banner {
  background: linear-gradient(135deg,#22c55e,#16a34a);
  color: #fff;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 700;
  font-size: 14px;
  text-align: center;
  margin-bottom: 16px;
}
.lgv-level-modes-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.lgv-level-mode-btn {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  transition: background .15s, border-color .15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.lgv-level-mode-btn:hover { border-color: var(--accent); background: rgba(99,102,241,.06); }
.lgv-level-mode-btn .lm-icon { font-size: 22px; }
.lgv-level-words {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.lgv-level-reset-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #ef4444;
  background: rgba(239,68,68,.08);
  border: 1.5px solid rgba(239,68,68,.3);
  border-radius: 8px;
  padding: 7px 14px;
  cursor: pointer;
  margin-bottom: 18px;
  transition: background .15s;
}
.lgv-level-reset-btn:hover { background: rgba(239,68,68,.16); }