@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700&family=Playfair+Display:ital,wght@0,500;0,600;1,500&display=swap');
:root{--paper:#f5f2ea;--ink:#243b33;--muted:#73796f;--accent:#a45135;--line:#dcded3}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px 'Be Vietnam Pro',sans-serif}button,input{font:inherit}button,a,label.upload{touch-action:manipulation}button{cursor:pointer}a{color:inherit}header{max-width:1400px;margin:auto;padding:27px 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{text-decoration:none;font-weight:700;letter-spacing:2px;font-size:19px}.brand span{color:var(--accent)}.brand small{display:block;font-size:8px;letter-spacing:4px;margin-top:7px}nav{display:flex;gap:30px;align-items:center}nav a{text-decoration:none}nav button,.dialog-bar button{background:none;border:0;color:var(--ink);padding:10px}main{max-width:1400px;padding:0 5%;margin:auto}.hero{display:grid;grid-template-columns:1fr 1fr;gap:7%;padding:64px 0 70px;align-items:center}.eyebrow{font-size:10px;font-weight:600;letter-spacing:2px;color:var(--accent)}h1,h2,h3{font-family:'Playfair Display',Georgia,serif;font-weight:500}h1{font-size:clamp(40px,4.6vw,70px);line-height:1.16;margin:24px 0}h1 em{color:var(--accent)}.lead{max-width:475px;color:var(--muted);line-height:1.95;margin-bottom:28px}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:30px;text-decoration:none;color:white;background:var(--ink);padding:16px 22px;border:0;font-size:12px}.numbers{display:flex;gap:30px;margin-top:38px;font-size:10px;color:var(--muted)}.numbers b{display:block;font-size:22px;color:var(--ink);font-weight:500;margin-bottom:7px}.hero-photo{height:460px;position:relative;margin:0;background:#dedbcf}.hero-photo:after{content:'';position:absolute;inset:0;background:linear-gradient(transparent 55%,#132b26c9)}.hero-photo>img{width:100%;height:100%;object-fit:cover}.hero-photo figcaption{position:absolute;bottom:26px;left:26px;right:20px;z-index:1;color:#fff}.hero-photo figcaption span{font-size:9px;letter-spacing:2px}.hero-photo figcaption strong{display:block;margin-top:10px;font-size:18px;font-family:'Playfair Display',Georgia,serif;font-weight:400}.section-top{display:flex;align-items:center;justify-content:space-between;gap:20px}h2{font-size:34px;line-height:1.3;margin:14px 0}.search{border-bottom:1px solid #adb5a7;display:flex;gap:12px;padding:12px 0}.search span{font-size:24px}.search input{width:205px;border:0;background:none;outline:none;color:var(--ink)}.subtle{color:var(--muted);font-size:11px;line-height:1.8}#results{margin:18px 0 26px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px 26px}.card{padding:0;border:0;background:none;text-align:left;color:var(--ink);display:block;width:100%}.card-image{height:225px;background:#e4e2d7;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}.card-image img{height:100%;width:100%;object-fit:cover;transition:transform .4s}.card:hover img{transform:scale(1.04)}.card .number{position:absolute;top:14px;left:14px;background:var(--paper);padding:7px 10px;font-size:10px}.card h3{font-size:22px;margin:15px 0 9px}.card-meta{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.card .arrow{color:var(--accent);font-size:18px}.note{display:flex;align-items:center;gap:28px;border-block:1px solid var(--line);padding:35px 0;margin-top:70px}.note>span{font-size:50px;color:var(--accent)}.note h2{font-size:26px;margin:0 0 8px}.note p{max-width:650px;line-height:1.8;color:var(--muted);font-size:12px}.outline{margin-left:auto;white-space:nowrap;border:1px solid #bcc4b7;background:none;padding:14px;color:var(--ink)}footer{max-width:1400px;margin:auto;padding:32px 5%;display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--muted)}footer>span{letter-spacing:2px}dialog{padding:0;border:0;background:var(--paper);color:var(--ink);width:min(1200px,94vw);max-height:92vh}dialog::backdrop{background:#142720b3;backdrop-filter:blur(5px)}.dialog-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 25px;border-bottom:1px solid var(--line);font-size:10px;letter-spacing:1px}.detail-layout{display:grid;grid-template-columns:1fr 1fr}.visual{padding:28px;min-width:0}.tabs{display:flex;gap:20px;border-bottom:1px solid var(--line);margin-bottom:20px}.tabs button{background:none;border:0;padding:10px 0;color:var(--muted)}.tabs button.active{color:var(--accent);border-bottom:2px solid var(--accent)}#mainPhoto{width:100%;height:330px;object-fit:contain;background:#e8e6de}#caption{font-size:11px;line-height:1.6;color:var(--muted)}#thumbs{display:flex;gap:8px;overflow:auto;padding:10px 0}#thumbs button{border:2px solid transparent;padding:0;background:none;flex-shrink:0}#thumbs button.selected{border-color:var(--accent)}#thumbs img{display:block;width:65px;height:52px;object-fit:cover}article{padding:35px;border-left:1px solid var(--line)}article h2{font-size:32px}#article p{font-size:13px;line-height:1.95;color:#59635b}model-viewer{width:100%;height:350px;background:#e8e6de}model-viewer:not([src]){display:none}#modelEmpty{text-align:center;padding:55px 20px;background:#e8e6de;margin-bottom:20px}#modelEmpty p{font-size:12px;line-height:1.8;color:var(--muted)}.cube{font-size:65px;color:var(--accent)}.upload{cursor:pointer;margin-top:15px}.guide-body{padding:20px 35px 35px}#guide{max-width:800px}.guide-body li{margin:18px 0;line-height:1.8}.guide-body p{color:var(--muted);line-height:1.7}#modelPaths p{font-size:11px;border-top:1px solid var(--line);padding-top:10px}#modelPaths code{display:block;color:var(--accent);margin-top:5px}[hidden]{display:none!important}#error{padding:20px;color:#9a3327}button:focus-visible,a:focus-visible,input:focus-visible,.upload:focus-within{outline:2px solid var(--accent);outline-offset:4px}html{scroll-behavior:smooth}@media(max-width:800px){.hero{gap:30px;padding:35px 0;grid-template-columns:1fr}.hero-photo{height:340px}.grid{grid-template-columns:repeat(2,1fr)}.section-top{align-items:start;flex-direction:column}.detail-layout{grid-template-columns:1fr}article{border:0;border-top:1px solid var(--line)}.note{flex-wrap:wrap}.outline{margin-left:0}h2{font-size:28px}nav{gap:10px;font-size:11px}footer{gap:20px;align-items:start}footer p{margin:0}}@media(max-width:480px){.grid{grid-template-columns:1fr}.card-image{height:245px}.brand{font-size:14px}.brand small{font-size:7px}nav a{display:none}.numbers{gap:24px}.hero-photo{height:300px}.visual,article{padding:20px}#mainPhoto{height:270px}.dialog-bar{padding:10px 16px}.guide-body{padding:20px}.hero h1{font-size:43px}}

#illustrationImage{display:block;width:100%;height:390px;object-fit:contain;background:#eee9df}#illustrationCaption{margin:16px 0}.illustration-download{display:inline-block;text-decoration:none;margin:0}.tabs{gap:18px}.tabs button{font-size:12px}@media(max-width:480px){#illustrationImage{height:280px}}
.game-invite{display:block;margin-top:18px;font-size:12px;color:#a45135;text-underline-offset:5px}

/* ==========================================================================
   AUDIO GUIDE & AUTO-ĐỌC BAR (Modal & 360 Tour)
   ========================================================================== */
.audio-guide-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: linear-gradient(135deg, #182c24 0%, #22382e 100%);
  color: #f5f2ea;
  padding: 12px 24px;
  border-bottom: 1px solid rgba(220, 222, 211, 0.15);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

.audio-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 200px;
}

.audio-play-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 0;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 3px 12px rgba(164, 81, 53, 0.4);
  flex-shrink: 0;
}

.audio-play-btn:hover {
  transform: scale(1.08);
  background: #bd5c3c;
}

.audio-play-btn.active {
  background: #e5a93c;
  color: #1e332c;
  box-shadow: 0 0 15px rgba(229, 169, 60, 0.6);
}

.audio-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.audio-tag {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: #e5a93c;
  text-transform: uppercase;
}

.audio-name {
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}

.audio-center {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  max-width: 500px;
}

/* Animated Equalizer Wave */
.audio-wave {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 22px;
  flex-shrink: 0;
}

.audio-wave span {
  width: 3px;
  height: 5px;
  background: #e5a93c;
  border-radius: 2px;
  transition: height 0.2s ease;
}

.audio-wave.playing span:nth-child(1) { animation: soundWave 0.8s infinite ease-in-out; }
.audio-wave.playing span:nth-child(2) { animation: soundWave 1.1s infinite 0.15s ease-in-out; }
.audio-wave.playing span:nth-child(3) { animation: soundWave 0.9s infinite 0.3s ease-in-out; }
.audio-wave.playing span:nth-child(4) { animation: soundWave 1.2s infinite 0.1s ease-in-out; }
.audio-wave.playing span:nth-child(5) { animation: soundWave 0.7s infinite 0.25s ease-in-out; }

@keyframes soundWave {
  0%, 100% { height: 4px; opacity: 0.5; }
  50% { height: 20px; opacity: 1; }
}

.audio-progress-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.audio-slider {
  width: 100%;
  height: 5px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  transition: background 0.2s;
}

.audio-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #e5a93c;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0,0,0,0.4);
  transition: transform 0.15s ease;
}

.audio-slider::-webkit-slider-thumb:hover {
  transform: scale(1.3);
}

.audio-time-row {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: #adb5a7;
  font-variant-numeric: tabular-nums;
}

.audio-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Auto-Read Toggle Switch */
.auto-read-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  user-select: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all 0.2s ease;
}

.auto-read-label:hover {
  background: rgba(255, 255, 255, 0.14);
}

.auto-read-label input {
  display: none;
}

.auto-switch {
  width: 28px;
  height: 16px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  position: relative;
  transition: background 0.3s;
}

.auto-knob {
  width: 12px;
  height: 12px;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.auto-read-label input:checked + .auto-switch {
  background: #2ebd60;
}

.auto-read-label input:checked + .auto-switch .auto-knob {
  transform: translateX(12px);
}

.auto-text {
  color: #f5f2ea;
  letter-spacing: 0.5px;
}

.audio-mute-btn {
  background: none;
  border: 0;
  color: #fff;
  font-size: 16px;
  padding: 6px 8px;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.2s;
}

.audio-mute-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.audio-mute-btn.muted {
  opacity: 0.6;
}

@media (max-width: 768px) {
  .audio-guide-bar {
    flex-wrap: wrap;
    padding: 10px 16px;
    gap: 10px;
  }
  .audio-center {
    order: 3;
    max-width: 100%;
    width: 100%;
  }
  .audio-left {
    min-width: 0;
    flex: 1;
  }
  .audio-name {
    max-width: 160px;
  }
}


.hero-photo{overflow:hidden}.hero-photo>img{animation:heroZoom 6s ease-out both}.hero-photo>img.hero-layer{position:absolute;inset:0;opacity:0;transition:opacity .9s ease;animation:none}.hero-photo>img.hero-layer.in{opacity:1}@keyframes heroZoom{from{transform:scale(1.04)}to{transform:scale(1)}}.hero-photo figcaption{right:26px;padding-bottom:22px}.hero-dots{position:absolute;left:26px;bottom:20px;z-index:2;display:flex;gap:6px}.hero-dots button{width:8px;height:8px;padding:0;border:0;border-radius:50%;background:#ffffff73;transition:all .3s}.hero-dots button.active{width:22px;border-radius:4px;background:#fff}@media(prefers-reduced-motion:reduce){.hero-photo>img{animation:none}.hero-photo>img.hero-layer{transition:none}}@media(max-width:480px){.hero-photo figcaption{left:18px;bottom:20px}.hero-dots{left:18px;bottom:16px}}

#article h3.article-sub{font-family:'Playfair Display',Georgia,serif;font-size:17px;font-weight:600;line-height:1.45;color:var(--accent);margin:26px 0 6px;text-transform:none}
.docs{display:grid;grid-template-columns:1.15fr 1fr;gap:6%;padding:56px 0 64px;border-top:1px solid var(--line)}.doc-block h2{font-size:34px;margin:10px 0 18px}.doc-body p{color:#59635b;line-height:1.95;font-size:13.5px;margin:0 0 14px;text-align:justify}.doc-block .doc-more{display:none}.doc-block.expanded .doc-more{display:block}.doc-toggle{background:none;border:0;border-bottom:1px solid var(--accent);color:var(--accent);padding:6px 0;font-size:12px;margin-top:4px}.overview{background:#ece8dc;padding:34px 34px 26px;align-self:start}.overview .eyebrow{line-height:1.7}.overview h2{font-size:26px;line-height:1.35}.doc-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:4px 0 22px;padding:16px 0;border-block:1px solid #cfd2c4}.doc-stats b{display:block;font-family:'Playfair Display',Georgia,serif;font-size:26px;font-weight:500;color:var(--accent)}.doc-stats small{font-size:10px;line-height:1.4;color:var(--muted);display:block;margin-top:4px}@media(max-width:800px){.docs{grid-template-columns:1fr;gap:28px;padding:36px 0 44px}.overview{padding:24px 20px}.doc-stats{grid-template-columns:repeat(2,1fr)}.doc-block h2{font-size:28px}.doc-body p{text-align:left}}
.overview .eyebrow{font-size:12px;letter-spacing:1.6px;line-height:1.75;margin:0 0 6px}
.pano-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#f5f2ea;font-size:12px;letter-spacing:1px;background:#142720;pointer-events:none;z-index:2}.pano-loading[hidden]{display:none}