/* ============================================================
   Material Design 3 — Poke-Learn Theme Override
   Kept: Buttons, Progress, Top Bar, Cards, Dialog, Inputs
   Reverted: Icons (SVG), Tabs (btn-tertiary)
   ============================================================ */

/* ============================================================
   MD3 Top App Bar
   ============================================================ */
.top-bar {
  height: 64px;
  background: color-mix(in srgb, var(--bg-deep) 92%, var(--accent) 8%);
  border-bottom: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);
  padding: 0 16px;
  backdrop-filter: blur(12px);
}

.top-bar h1 {
  font-size: 22px;
  letter-spacing: 0;
}

.container {
  padding: 76px 20px 40px;
}

/* ============================================================
   MD3 Buttons — Filled, Outlined, Text
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  height: 40px;
  min-height: 40px;
  min-width: 0;
  border: none;
  border-radius: 20px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1px;
  cursor: pointer;
  transition: box-shadow .2s, background .2s, transform .15s;
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity .2s;
  pointer-events: none;
}

.btn:hover::before {
  opacity: 1;
}

.btn:active {
  transform: scale(.97);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .2), 0 1px 2px rgba(0, 0, 0, .15);
}

.btn-primary::before {
  background: rgba(0, 0, 0, .08);
}

.btn-primary:hover {
  box-shadow: 0 2px 6px rgba(0, 0, 0, .25), 0 1px 3px rgba(0, 0, 0, .2);
  background: var(--accent);
  transform: none;
}

.btn-primary:active {
  box-shadow: 0 1px 2px rgba(0, 0, 0, .15);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 50%, transparent);
  box-shadow: none;
}

.btn-secondary::before {
  background: rgba(var(--accent-rgb), .08);
}

.btn-secondary:hover {
  background: rgba(var(--accent-rgb), .08);
  border-color: var(--accent);
}

.btn-destructive {
  background: transparent;
  color: rgba(255, 255, 255, .6);
  border: none;
  box-shadow: none;
}

.btn-destructive::before {
  background: rgba(var(--accent-rgb), .08);
}

.btn-destructive:hover {
  color: var(--danger);
  border-color: transparent;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(var(--accent-rgb), .1);
  border: none;
  color: var(--accent);
  padding: 0 16px;
  height: 40px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  font-family: var(--font);
  font-weight: 500;
  transition: background .2s;
}

.back-btn:hover {
  background: rgba(var(--accent-rgb), .18);
  color: var(--accent);
}

/* ============================================================
   MD3 Icon Buttons — Speak, Profile
   ============================================================ */
.speak-btn {
  background: rgba(var(--accent-rgb), .12);
  border: none;
  color: var(--accent);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, box-shadow .2s;
  margin: 8px;
}

.speak-btn .mi {
  font-size: 24px;
}

.speak-btn:hover {
  background: rgba(var(--accent-rgb), .2);
  color: var(--accent);
  box-shadow: 0 2px 8px rgba(var(--accent-rgb), .25);
}

.profile-btn {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, box-shadow .2s;
  padding: 0;
  overflow: hidden;
}

.profile-btn:hover {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  box-shadow: 0 1px 4px rgba(var(--accent-rgb), .2);
  border-color: var(--accent);
}

.profile-btn .poke-sprite {
  width: 44px;
  height: 44px;
}

/* ============================================================
   MD3 Cards — Subtle surface tint for text contrast
   ============================================================ */
.game-card {
  width: 220px;
  background: color-mix(in srgb, var(--bg-surface) 95%, var(--accent) 5%);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 16px;
  padding: 20px 16px;
  cursor: pointer;
  transition: box-shadow .2s, transform .2s;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .15), 0 1px 2px rgba(0, 0, 0, .1);
}

.game-card:hover,
.game-card.focused {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb), .25);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .2), 0 2px 6px rgba(0, 0, 0, .15);
}

.card-stars {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 10px;
  font-size: var(--text-sm);
  color: var(--accent);
  background: rgba(var(--accent-rgb), .08);
  border: none;
  border-radius: 8px;
  padding: 4px 12px;
}

.profile-card {
  background: color-mix(in srgb, var(--bg-surface) 92%, var(--accent) 8%);
  border: none;
  border-radius: 28px;
  padding: 40px 36px;
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .15), 0 4px 16px rgba(0, 0, 0, .1);
}

.vocab-card {
  background: color-mix(in srgb, var(--bg-surface) 94%, var(--accent) 6%);
  border: none;
  border-radius: 16px;
  padding: 20px;
  max-width: 500px;
  margin: 0 auto 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .15), 0 1px 2px rgba(0, 0, 0, .1);
}

.reading-card {
  background: color-mix(in srgb, var(--bg-surface) 94%, var(--accent) 6%);
  border: none;
  border-radius: 16px;
  padding: 18px;
  max-width: 560px;
  margin: 0 auto 12px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .15), 0 1px 2px rgba(0, 0, 0, .1);
}

.stat-card {
  width: 90px;
  flex-shrink: 0;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 12px;
  padding: 14px 8px;
}

.game-info {
  background: color-mix(in srgb, var(--bg-surface) 88%, var(--accent) 12%);
  border-color: transparent;
  border-radius: 12px;
  color: rgba(255, 255, 255, .7);
}

.game-info::before {
  border-bottom-color: color-mix(in srgb, var(--bg-surface) 88%, var(--accent) 12%);
}

/* ============================================================
   MD3 Linear Progress Indicator
   ============================================================ */
.evo-bar-track {
  width: 100%;
  height: 4px;
  background: rgba(var(--accent-rgb), .15);
  border-radius: 2px;
  overflow: hidden;
}

.evo-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 1.2s cubic-bezier(.25, .8, .25, 1);
  box-shadow: none;
  position: relative;
  overflow: hidden;
}

.evo-bar-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .25), transparent);
  animation: md3ProgressShimmer 2s ease-in-out infinite;
}

@keyframes md3ProgressShimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

/* ============================================================
   MD3 Text Field (Profile Input)
   ============================================================ */
.profile-input {
  width: 100%;
  padding: 16px 16px;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 4px;
  background: transparent;
  color: #fff;
  font-family: var(--font);
  font-size: 16px;
  font-weight: 400;
  text-align: center;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  caret-color: var(--accent);
}

.profile-input::placeholder {
  color: rgba(255, 255, 255, .4);
}

.profile-input:focus {
  border-color: var(--accent);
  border-width: 2px;
  padding: 15px 15px;
  background: transparent;
  box-shadow: none;
}

/* ============================================================
   MD3 Dialog — centered horizontally & vertically
   ============================================================ */
.md3-dialog {
  border: none;
  border-radius: 28px;
  background: color-mix(in srgb, var(--bg-surface) 85%, var(--accent) 15%);
  color: #fff;
  padding: 24px;
  max-width: 380px;
  width: calc(100% - 48px);
  margin: auto;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .3), 0 16px 48px rgba(0, 0, 0, .15);
  animation: md3DialogFadeIn .15s ease;
}

.md3-dialog::backdrop {
  background: rgba(0, 0, 0, .5);
  animation: md3BackdropFadeIn .15s ease;
}

@keyframes md3DialogFadeIn {
  from { opacity: 0; transform: scale(.95); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes md3BackdropFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.md3-dialog-headline {
  font-size: 24px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 16px;
  text-align: center;
}

.md3-dialog-content {
  font-size: 14px;
  font-weight: 400;
  color: rgba(255, 255, 255, .7);
  line-height: 1.6;
  margin-bottom: 24px;
  text-align: center;
}

.md3-dialog-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.md3-dialog-actions .btn {
  min-width: 80px;
}

/* ============================================================
   MD3 Alphabet Arrows
   ============================================================ */
.abc-arrow {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background: rgba(var(--accent-rgb), .08);
  color: rgba(255, 255, 255, .7);
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, color .2s;
  flex-shrink: 0;
  padding: 0;
  line-height: 1;
}

.abc-arrow:hover,
.abc-arrow.active {
  background: rgba(var(--accent-rgb), .16);
  color: var(--accent);
}

.abc-hero {
  background: color-mix(in srgb, var(--bg-surface) 94%, var(--accent) 6%);
  border: none;
  border-radius: 16px;
  padding: 24px 20px 20px;
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 20px;
  direction: ltr;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .15), 0 1px 2px rgba(0, 0, 0, .1);
}

.abc-hero-speak {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(var(--accent-rgb), .12);
  color: var(--accent);
  cursor: pointer;
  transition: background .2s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.abc-hero-speak:hover {
  background: rgba(var(--accent-rgb), .2);
}

.abc-letter-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .08);
  background: transparent;
  color: rgba(255, 255, 255, .5);
  font-family: var(--font);
  font-size: var(--text-md);
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, color .2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.abc-letter-btn:hover {
  background: rgba(var(--accent-rgb), .08);
  color: var(--accent);
  border-color: transparent;
}

.abc-letter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-deep);
}

/* ============================================================
   MD3 Chips & Quiz Options
   ============================================================ */
.category-label {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(var(--accent-rgb), .1);
  color: var(--accent);
  margin-top: 8px;
}

.quiz-opt-wrap {
  display: inline-flex;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, .15);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
  direction: ltr;
}

.quiz-opt-wrap:hover {
  border-color: var(--accent);
  box-shadow: 0 1px 3px rgba(var(--accent-rgb), .15);
}

.quiz-opt-answer {
  padding: 0 16px;
  height: 40px;
  background: transparent;
  color: rgba(255, 255, 255, .85);
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  transition: background .2s;
  min-height: 40px;
}

.quiz-opt-answer:hover {
  background: rgba(255, 255, 255, .06);
}

.quiz-opt-speak {
  padding: 0 12px;
  background: rgba(var(--accent-rgb), .18);
  border: none;
  border-left: 1px solid rgba(var(--accent-rgb), .15);
  color: var(--accent);
  cursor: pointer;
  transition: background .2s;
  display: flex;
  align-items: center;
}

.quiz-opt-speak:hover {
  background: rgba(var(--accent-rgb), .3);
}

/* ============================================================
   MD3 Match Items, Letter Tiles, Spell Slots
   ============================================================ */
.match-item {
  border-radius: 16px;
  cursor: pointer;
  transition: box-shadow .2s, border-color .2s, background .2s;
  border: 1px solid rgba(255, 255, 255, .08);
  background: color-mix(in srgb, var(--bg-surface) 95%, var(--accent) 5%);
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 88px;
  font-family: var(--font);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .1);
}

.match-item:hover {
  background: color-mix(in srgb, var(--bg-surface) 90%, var(--accent) 10%);
  border-color: rgba(var(--accent-rgb), .3);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .15);
}

.letter-tile {
  width: 58px;
  height: 62px;
  border-radius: 12px;
  border: none;
  background: rgba(var(--accent-rgb), .08);
  color: #fff;
  font-size: var(--text-lg);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, box-shadow .2s, transform .15s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .1);
}

.letter-tile:hover {
  background: rgba(var(--accent-rgb), .15);
  box-shadow: 0 2px 6px rgba(var(--accent-rgb), .2);
  transform: scale(1.05);
  border-color: transparent;
}

.spell-slot.filled {
  border-style: solid;
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), .08);
}

/* ============================================================
   MD3 Pokedex Cards — subtle tint
   ============================================================ */
.dex-card {
  width: 150px;
  flex-shrink: 0;
  background: color-mix(in srgb, var(--bg-surface) 95%, var(--accent) 5%);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 16px;
  padding: 16px 10px 12px;
  text-align: center;
  transition: box-shadow .2s, transform .2s;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .1);
}

.dex-card:hover {
  border-color: rgba(var(--accent-rgb), .2);
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .2);
}

.dex-type {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  margin-top: 6px;
  text-transform: capitalize;
}

/* ============================================================
   MD3 Avatar Options
   ============================================================ */
.avatar-option {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 16px;
  padding: 12px;
  cursor: pointer;
  transition: background .2s, border-color .2s, box-shadow .2s;
  text-align: center;
  width: 100px;
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.avatar-option:hover:not(.locked) {
  background: rgba(var(--accent-rgb), .06);
  border-color: color-mix(in srgb, var(--avatar-color, var(--accent)) 40%, transparent);
  transform: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .1);
}

.avatar-option.selected {
  border-color: var(--avatar-color, var(--accent));
  background: color-mix(in srgb, var(--avatar-color, var(--accent)) 10%, transparent);
  box-shadow: 0 0 0 1px var(--avatar-color, var(--accent));
}

/* ============================================================
   Hex Grid — subtle tint
   ============================================================ */
.hex-front {
  background: color-mix(in srgb, var(--bg-surface) 95%, var(--accent) 5%);
  transition: background .2s;
}

.hex-cell:hover .hex-front {
  background: color-mix(in srgb, var(--bg-surface) 88%, var(--accent) 12%);
}

.hex-back {
  background: color-mix(in srgb, var(--bg-surface) 90%, var(--accent) 10%);
}

/* ABC Pokemon/Word Cards — subtle tint */
.abc-pokemon-card {
  width: 100px;
  flex-shrink: 0;
  background: color-mix(in srgb, var(--bg-surface) 95%, var(--accent) 5%);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: 12px;
  padding: 12px 8px 10px;
  text-align: center;
  cursor: pointer;
  transition: box-shadow .2s, transform .2s;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .08);
}

.abc-pokemon-card:hover {
  border-color: rgba(var(--accent-rgb), .2);
  transform: translateY(-2px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, .15);
}

.abc-word-card {
  width: 100px;
  flex-shrink: 0;
  background: color-mix(in srgb, var(--bg-surface) 93%, var(--accent) 7%);
  border: 1px solid rgba(var(--accent-rgb), .12);
  border-radius: 12px;
  padding: 14px 10px 12px;
  text-align: center;
  cursor: pointer;
  transition: box-shadow .2s, transform .2s;
}

.abc-word-card:hover {
  border-color: rgba(var(--accent-rgb), .3);
  transform: translateY(-2px);
  box-shadow: 0 3px 8px rgba(0, 0, 0, .15);
}

/* ============================================================
   MD3 Stars Display
   ============================================================ */
.stars-display {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  background: rgba(var(--accent-rgb), .08);
  padding: 4px 12px;
  border-radius: 20px;
}

.stars-display .star-icon {
  display: flex;
  align-items: center;
  font-size: 18px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 600px) {
  .top-bar { padding: 0 12px; }
  .container { padding: 72px 14px 30px; }
  .stars-display { font-size: 12px; }
  .stars-display .star-icon { font-size: 14px; }
  .back-btn { font-size: 13px; }

  .btn {
    height: 36px;
    padding: 0 16px;
    font-size: 13px;
  }
}

@media (max-width: 420px) {
  .stars-display { display: none; }
  .back-btn-text { display: none; }
  .back-btn { padding: 8px 12px; min-width: 0; }
}

@media (max-width: 320px) {
  .top-bar { padding: 0 8px; }
  .container { padding: 70px 10px 24px; }
}