/* ==========================================================================
   Game: Music Trivia  (music-trivia.html)
   Self-contained — every class is prefixed .mt-. The game panel is always a
   dark "stage" (like the homepage games promo) in both site themes.
   Load order: bootstrap → common.css → header/breadcrumb/footer → this file.
   ========================================================================== */

.mt {
  --mt-bg: #15172e;
  --mt-card: rgba(255, 255, 255, .06);
  --mt-card-hover: rgba(255, 255, 255, .11);
  --mt-line: rgba(255, 255, 255, .12);
  --mt-text: #fff;
  --mt-sub: rgba(255, 255, 255, .72);
  --mt-good: #19c28f;
  --mt-bad: #ff5c8a;
  --mt-warn: #ffb547;
  --mt-ice: #7fd6ff;
  --mt-accent: var(--hot);

  position: relative;
  margin: 10px 0 40px;
  padding: 36px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(232, 68, 122, .32), transparent 55%),
    radial-gradient(90% 80% at 0% 100%, rgba(91, 61, 245, .45), transparent 60%),
    var(--mt-bg);
  color: var(--mt-text);
  isolation: isolate;
  min-height: 520px;
}

:root[data-theme="dark"] .mt { border: 1px solid var(--line); }

/* Vinyl record motif (decorative) */
.mt::before {
  content: "";
  position: absolute;
  right: -130px;
  bottom: -130px;
  z-index: -1;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--mt-accent) 0 9%, #0b0c1b 9.5% 12%, transparent 12.5%),
    repeating-radial-gradient(circle, #0b0c1b 0 3px, #1a1c35 3px 5px);
  opacity: .28;
  animation: mt-spin 18s linear infinite;
}

@keyframes mt-spin { to { transform: rotate(360deg); } }

.mt-screen[hidden] { display: none !important; }
.mt-screen { animation: mt-fade .35s var(--ease); }

@keyframes mt-fade {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

.mt-ico {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Shared buttons ---------- */
.mt-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 8px 18px;
  border: 1px solid var(--mt-line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--mt-text);
  font: 600 .875rem/1.2 var(--font);
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}
.mt-ghost:hover { background: var(--mt-card-hover); }
.mt-ghost--danger { color: var(--mt-sub); }
.mt-ghost--danger.is-confirm { border-color: var(--mt-bad); color: var(--mt-bad); }

.mt-ghost .mt-ico--off { display: none; }
.mt-ghost.is-off .mt-ico--on { display: none; }
.mt-ghost.is-off .mt-ico--off { display: block; }

.mt-icon-btn {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: none;
  padding: 0;
  border: 1px solid var(--mt-line);
  border-radius: 50%;
  background: var(--mt-card);
  color: var(--mt-text);
  cursor: pointer;
  transition: background-color .2s var(--ease);
}
.mt-icon-btn:hover { background: var(--mt-card-hover); }

.mt .btn-pill { min-height: 46px; padding: 11px 24px; }
.mt .btn-pill:not(.btn-pill--hot) { background: var(--brand-soft); color: var(--night); }

.mt button:focus-visible { outline: 3px solid var(--mt-accent); outline-offset: 2px; }

/* ==========================================================================
   Screen 1: stage select
   ========================================================================== */
.mt-home__head {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  max-width: 720px;
}

.mt-kicker {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(255, 216, 77, .14);
  color: var(--mt-accent);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.mt-title {
  margin: 0 0 8px;
  font-size: clamp(2rem, 4.4vw, 3rem);
  letter-spacing: -.035em;
  line-height: 1.05;
}

.mt-lead { margin: 0; color: var(--mt-sub); }

/* Animated equalizer */
.mt-eq {
  display: flex;
  align-items: flex-end;
  gap: 5px;
  flex: none;
  width: 76px;
  height: 76px;
  padding: 16px 14px;
  border-radius: 20px;
  background: linear-gradient(145deg, var(--brand), var(--c-ent));
  box-shadow: 0 12px 30px rgba(91, 61, 245, .4);
}
.mt-eq span {
  flex: 1;
  height: 40%;
  border-radius: 3px;
  background: #fff;
  animation: mt-eq 1s ease-in-out infinite alternate;
}
.mt-eq span:nth-child(2) { animation-delay: -.4s; }
.mt-eq span:nth-child(3) { animation-delay: -.8s; }
.mt-eq span:nth-child(4) { animation-delay: -.2s; }
.mt-eq span:nth-child(5) { animation-delay: -.6s; }

@keyframes mt-eq {
  0%   { height: 20%; }
  50%  { height: 95%; }
  100% { height: 45%; }
}

.mt-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 28px 0 26px;
}

.mt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.mt-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--mt-line);
  border-radius: var(--radius-pill);
  background: var(--mt-card);
}
.mt-chip__label { color: var(--mt-sub); font-size: .78rem; font-weight: 500; }
.mt-chip strong { color: var(--mt-accent); font-size: 1rem; }

.mt-toolbar__actions { display: flex; flex-wrap: wrap; gap: 10px; }

.mt-subtitle {
  margin: 0 0 14px;
  font-size: 1rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--mt-sub);
}

.mt-stages {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mt-stage {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  height: 100%;
  padding: 18px;
  border: 1px solid var(--mt-line);
  border-radius: var(--radius-md);
  background: var(--mt-card);
  color: var(--mt-text);
  font-family: var(--font);
  text-align: left;
  cursor: pointer;
  transition: transform .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease);
}
.mt-stage:hover:not(:disabled) {
  transform: translateY(-3px);
  border-color: rgba(255, 216, 77, .55);
  background: var(--mt-card-hover);
}
.mt-stage.is-cleared { border-color: rgba(25, 194, 143, .45); }
.mt-stage.is-locked { cursor: not-allowed; opacity: .5; }

.mt-stage__num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--mt-accent);
  color: var(--night);
  font-size: 1.1rem;
  font-weight: 700;
}
.mt-stage.is-locked .mt-stage__num { background: rgba(255, 255, 255, .14); color: var(--mt-text); }

.mt-stage__body { display: flex; flex-direction: column; gap: 3px; flex: 1; }
.mt-stage__name { font-size: 1rem; font-weight: 700; line-height: 1.3; }
.mt-stage__blurb { color: var(--mt-sub); font-size: .82rem; line-height: 1.45; }

.mt-stage__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--mt-line);
}
.mt-stage__best { color: var(--mt-sub); font-size: .78rem; font-weight: 600; }

.mt-star {
  color: rgba(255, 255, 255, .22);
  font-size: 1.05rem;
  line-height: 1;
}
.mt-star.is-on { color: var(--mt-accent); text-shadow: 0 0 12px rgba(255, 216, 77, .5); }

.mt-noscript {
  margin: 16px 0 0;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 92, 138, .15);
}

/* ==========================================================================
   Screen 2: playing
   ========================================================================== */
.mt-play { position: relative; }

.mt-hud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-bottom: 16px;
}
.mt-hud__stage {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 216, 77, .14);
  color: var(--mt-accent);
  font-size: .8rem;
  font-weight: 700;
}
.mt-hud__stats { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-left: auto; }

.mt-stat { display: flex; flex-direction: column; line-height: 1.2; }
.mt-stat__label {
  color: var(--mt-sub);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.mt-stat strong { font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.mt-stat--streak.is-hot strong { color: var(--mt-warn); }
.mt-stat--streak.is-hot strong::after { content: " 🔥"; font-size: .9em; }

.mt-progress {
  height: 6px;
  margin-bottom: 14px;
  overflow: hidden;
  border-radius: 6px;
  background: rgba(255, 255, 255, .1);
}
.mt-progress span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand-soft), var(--mt-accent));
  transition: width .4s var(--ease);
}

/* Timer */
.mt-timer {
  --mt-time: var(--mt-good);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
}
.mt-timer.is-warn   { --mt-time: var(--mt-warn); }
.mt-timer.is-danger { --mt-time: var(--mt-bad); }
.mt-timer.is-frozen { --mt-time: var(--mt-ice); }

.mt-timer__track {
  flex: 1;
  height: 12px;
  overflow: hidden;
  border-radius: 12px;
  background: rgba(255, 255, 255, .1);
}
.mt-timer__bar {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: var(--mt-time);
  transform-origin: left center;
  transition: background-color .3s var(--ease);
}
.mt-timer.is-danger .mt-timer__bar { animation: mt-pulse .5s ease-in-out infinite alternate; }
.mt-timer.is-frozen .mt-timer__bar {
  background-image: repeating-linear-gradient(135deg, rgba(255, 255, 255, .35) 0 6px, transparent 6px 12px);
  animation: none;
}

@keyframes mt-pulse { to { opacity: .55; } }

.mt-timer__text {
  min-width: 58px;
  color: var(--mt-time);
  font-size: .95rem;
  font-weight: 700;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Question + answers */
.mt-board { max-width: 860px; margin: 0 auto; }

.mt-question {
  margin: 0 0 22px;
  font-size: clamp(1.25rem, 2.6vw, 1.75rem);
  line-height: 1.35;
  letter-spacing: -.015em;
  outline: none;
}
.mt-question.is-in { animation: mt-fade .4s var(--ease); }

.mt-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.mt-option {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  min-height: 62px;
  padding: 12px 16px;
  border: 2px solid var(--mt-line);
  border-radius: var(--radius-sm);
  background: var(--mt-card);
  color: var(--mt-text);
  font: 600 1rem/1.35 var(--font);
  text-align: left;
  cursor: pointer;
  transition: transform .15s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease), opacity .2s var(--ease);
}
.mt-option:hover:not(:disabled) {
  transform: translateY(-2px);
  border-color: rgba(255, 216, 77, .6);
  background: var(--mt-card-hover);
}
.mt-option:active:not(:disabled) { transform: translateY(0); }
.mt-option:disabled { cursor: default; }

.mt-option__key {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 10px;
  background: rgba(255, 255, 255, .1);
  font-size: .85rem;
  font-weight: 700;
}
.mt-option__text { min-width: 0; overflow-wrap: anywhere; }

.mt-option.is-correct {
  border-color: var(--mt-good);
  background: rgba(25, 194, 143, .2);
  animation: mt-pop .35s var(--ease);
}
.mt-option.is-correct .mt-option__key { background: var(--mt-good); color: #06281d; }

.mt-option.is-wrong {
  border-color: var(--mt-bad);
  background: rgba(255, 92, 138, .18);
  animation: mt-shake .4s ease;
}
.mt-option.is-wrong .mt-option__key { background: var(--mt-bad); color: #3a0716; }

.mt-option.is-dim { opacity: .45; }
.mt-option.is-removed { opacity: .2; text-decoration: line-through; }

@keyframes mt-pop {
  50% { transform: scale(1.03); }
}
@keyframes mt-shake {
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

/* Lifelines */
.mt-lifelines {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.mt-life {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 8px 16px;
  border: 1px dashed rgba(255, 255, 255, .3);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--mt-text);
  font: 500 .82rem/1.2 var(--font);
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), opacity .2s var(--ease);
}
.mt-life strong { color: var(--mt-accent); font-weight: 700; }
.mt-life .mt-ico { width: 16px; height: 16px; color: var(--mt-accent); }
.mt-life:hover:not(:disabled) { border-style: solid; border-color: var(--mt-accent); background: rgba(255, 216, 77, .1); }
.mt-life:disabled { cursor: not-allowed; opacity: .38; }
.mt-life.is-used { text-decoration: line-through; }

/* Feedback */
.mt-feedback {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  margin-top: 20px;
  padding: 18px 20px;
  border-left: 5px solid var(--mt-good);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, .07);
  animation: mt-fade .3s var(--ease);
}
.mt-feedback[hidden] { display: none; }
.mt-feedback.is-bad { border-left-color: var(--mt-bad); }
.mt-feedback > div { flex: 1 1 320px; min-width: 0; }

.mt-feedback__title { margin: 0 0 4px; font-size: 1.05rem; font-weight: 700; }
.mt-feedback.is-good .mt-feedback__title { color: var(--mt-good); }
.mt-feedback.is-bad .mt-feedback__title { color: var(--mt-bad); }
.mt-feedback__text { margin: 0; color: var(--mt-sub); font-size: .9rem; }
.mt-feedback__next { flex: none; }

/* Pause overlay: hides the question so pausing can't be used to think */
.mt-play.is-paused .mt-board,
.mt-play.is-paused .mt-timer { filter: blur(14px); pointer-events: none; user-select: none; }

.mt-paused {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  padding: 16px;
}
.mt-paused[hidden] { display: none; }
.mt-paused__card {
  max-width: 380px;
  padding: 28px;
  border: 1px solid var(--mt-line);
  border-radius: var(--radius-md);
  background: rgba(21, 23, 46, .94);
  box-shadow: 0 20px 50px rgba(0, 0, 0, .45);
  text-align: center;
}
.mt-paused__title { margin: 0 0 6px; font-size: 1.6rem; }
.mt-paused__card p { margin: 0 0 20px; color: var(--mt-sub); font-size: .9rem; }
.mt-paused__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }

/* ==========================================================================
   Screen 3: results
   ========================================================================== */
.mt-result { max-width: 640px; margin: 0 auto; padding: 10px 0; text-align: center; }

.mt-result__stars { display: flex; justify-content: center; gap: 10px; margin-bottom: 8px; }
.mt-star--big {
  font-size: clamp(3rem, 9vw, 4.25rem);
  opacity: 0;
  animation: mt-star-in .5s var(--ease) forwards;
}
@keyframes mt-star-in {
  from { opacity: 0; transform: scale(.3) rotate(-30deg); }
  to   { opacity: 1; transform: none; }
}

.mt-result__title { margin: 0 0 6px; font-size: clamp(1.8rem, 4vw, 2.5rem); }
.mt-result__new {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  background: var(--mt-accent);
  color: var(--night);
  font-size: .8rem;
  font-weight: 700;
}
.mt-result__new[hidden] { display: none; }
.mt-result__text { margin: 0 auto 24px; max-width: 460px; color: var(--mt-sub); }

.mt-result__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 26px;
}
.mt-result__stats div {
  padding: 14px 8px;
  border: 1px solid var(--mt-line);
  border-radius: var(--radius-sm);
  background: var(--mt-card);
}
.mt-result__stats dt {
  color: var(--mt-sub);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.mt-result__stats dd {
  margin: 2px 0 0;
  font-size: 1.35rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.mt-result__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.mt-result__actions [hidden] { display: none; }

/* ==========================================================================
   How-to-play section (below the game, uses the site theme)
   ========================================================================== */
.mt-guide { margin: 0 0 56px; }
.mt-guide .section-head__title { margin-bottom: 22px; }

.mt-guide__item {
  height: 100%;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.mt-guide__item h3 { margin: 12px 0 6px; font-size: 1.05rem; }
.mt-guide__item p { margin: 0; color: var(--sub); font-size: .9rem; }

.mt-guide__num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--brand);
  color: var(--onbrand);
  font-weight: 700;
}

.mt-guide__back { margin: 24px 0 0; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 767.98px) {
  .mt { padding: 24px 20px; min-height: 0; }
  .mt-options { grid-template-columns: 1fr; }
  .mt-result__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mt-hud__stats { margin-left: 0; order: 3; width: 100%; justify-content: space-between; }
  .mt-hud .mt-icon-btn { margin-left: auto; }
}

@media (max-width: 575.98px) {
  .mt { margin-left: -4px; margin-right: -4px; padding: 22px 16px; border-radius: var(--radius-md); }
  .mt-home__head { flex-direction: column; gap: 16px; }
  .mt-eq { width: 60px; height: 60px; padding: 12px 11px; border-radius: 16px; }
  .mt-toolbar { flex-direction: column; align-items: stretch; }
  .mt-toolbar__actions .mt-ghost { flex: 1; justify-content: center; }
  .mt-stages { grid-template-columns: 1fr; }
  .mt-option { min-height: 56px; font-size: .95rem; }
  .mt-feedback__next { width: 100%; }
  .mt-life { flex: 1 1 auto; justify-content: center; padding: 8px 10px; }
  .mt::before { width: 240px; height: 240px; right: -120px; bottom: -120px; }
}

@media (prefers-reduced-motion: reduce) {
  .mt::before, .mt-eq span { animation: none; }
  .mt-star--big { opacity: 1; }
}