:root {
    --gold: #c9a84c;
    --gold-dim: #8a6b2e;
    --ash: #0d0c0a;
    --stone: #1a1710;
    --text: #d4c9a8;
    --text-dim: #7a7060;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: auto; }
  body { background: var(--ash); color: var(--text); font-family: 'Cormorant Garamond', serif; overflow-x: hidden; cursor: none; }
  body.scroll-locked { overflow: hidden; }

  /* ── Cursor ── */
  .cursor { position: fixed; width: 8px; height: 8px; background: var(--gold); border-radius: 50%; pointer-events: none; z-index: 9999; transform: translate(-50%,-50%); mix-blend-mode: screen; }
  .cursor-ring { position: fixed; width: 34px; height: 34px; border: 1px solid rgba(201,168,76,0.4); border-radius: 50%; pointer-events: none; z-index: 9998; transform: translate(-50%,-50%); transition: width 0.25s, height 0.25s, border-color 0.25s; }

  /* ── Progress bar ── */
  #progress-bar { position: fixed; left: 0; top: 0; width: 0%; height: 2px; background: linear-gradient(90deg, transparent, var(--gold), transparent); z-index: 600; transition: width 0.1s linear; }

  /* ── Notification ── */
  #notification { position: fixed; top: 2rem; left: 50%; transform: translateX(-50%) translateY(-16px); background: rgba(13,12,10,0.95); border: 1px solid var(--gold-dim); padding: 0.65rem 1.5rem; font-family: 'Cinzel', serif; font-size: 0.6rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--gold); z-index: 700; opacity: 0; transition: opacity 0.4s, transform 0.4s; pointer-events: none; white-space: nowrap; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
  #notification.show { opacity: 1; transform: translateX(-50%) translateY(0); }

  /* ══════════════════════════════
     CONTROLS
  ══════════════════════════════ */
  #controls {
    position: fixed; bottom: 2rem; right: 2rem;
    z-index: 500; display: flex; flex-direction: column;
    align-items: flex-end; gap: 0.9rem;
  }

  .stem-indicators { display: flex; flex-direction: column; gap: 5px; align-items: flex-end; }
  .stem-dot { display: flex; align-items: center; gap: 9px; opacity: 0.2; transition: opacity 0.7s; }
  .stem-dot.active { opacity: 1; }
  .stem-dot span { font-family: 'Cinzel', serif; font-size: 0.58rem; letter-spacing: 0.15em; color: var(--text-dim); text-transform: uppercase; }
  .stem-dot.active span { color: var(--gold); }
  .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold-dim); transition: background 0.7s, box-shadow 0.7s; flex-shrink: 0; }
  .stem-dot.active .dot { background: var(--gold); box-shadow: 0 0 8px var(--gold); }

  .ctrl-row { display: flex; gap: 0.6rem; align-items: center; }

  .ctrl-btn {
    font-family: 'Cinzel', serif; font-size: 0.68rem; letter-spacing: 0.2em;
    text-transform: uppercase; color: var(--gold);
    border: 1px solid var(--gold-dim); background: rgba(13,12,10,0.92);
    padding: 0.7rem 1.3rem; min-height: 44px; min-width: 44px;
    cursor: none; transition: all 0.3s; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    white-space: nowrap; display: flex; align-items: center; justify-content: center;
  }
  .ctrl-btn:hover { border-color: var(--gold); background: rgba(201,168,76,0.1); }
  .ctrl-btn.on { background: var(--gold); color: var(--ash); border-color: var(--gold); }

  #volume-wrap { display: flex; align-items: center; gap: 0.75rem; }
  #volume-wrap label { font-family: 'Cinzel', serif; font-size: 0.55rem; letter-spacing: 0.2em; color: var(--text-dim); text-transform: uppercase; }
  #vol { -webkit-appearance: none; appearance: none; width: 90px; height: 2px; background: var(--gold-dim); outline: none; cursor: none; border-radius: 1px; }
  #vol::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 13px; height: 13px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 6px var(--gold); cursor: none; }
  #vol::-moz-range-thumb { width: 13px; height: 13px; border-radius: 50%; background: var(--gold); border: none; }

  /* ── Pace lock ── */
  #pace-lock { position: fixed; bottom: 0; left: 0; right: 0; height: 2px; background: transparent; z-index: 800; pointer-events: none; opacity: 0; transition: opacity 0.5s; }
  #pace-lock.show { opacity: 1; background: linear-gradient(90deg, transparent, var(--gold), transparent); box-shadow: 0 0 20px 4px rgba(201,168,76,0.35); animation: gpulse 1.5s ease-in-out 3; }
  @keyframes gpulse { 0%,100%{opacity:0.5} 50%{opacity:1} }
  #pace-warning { position: fixed; bottom: 2.5rem; left: 50%; transform: translateX(-50%) translateY(8px); background: rgba(13,12,10,0.95); border: 1px solid var(--gold-dim); padding: 0.55rem 1.6rem; font-family: 'Cinzel', serif; font-size: 0.55rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--gold); z-index: 800; opacity: 0; transition: opacity 0.3s, transform 0.3s; pointer-events: none; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
  #pace-warning.show { opacity: 1; transform: translateX(-50%) translateY(0); }

  /* ── Intro modal ── */
  #intro-modal {
    position: fixed; inset: 0; z-index: 2000;
    display: flex; align-items: center; justify-content: center;
    background: rgba(13,12,10,0.97); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    opacity: 1; transition: opacity 2s;
  }
  #intro-modal.hidden { opacity: 0; pointer-events: none; }
  .intro-box {
    max-width: 520px; width: 90%; padding: 3rem 3.5rem;
    border: 1px solid var(--gold-dim);
    background: rgba(26,23,16,0.95);
    text-align: center; position: relative;
  }
  .intro-box::before, .intro-box::after {
    content: ''; position: absolute; width: 16px; height: 16px;
    border-color: var(--gold); border-style: solid; opacity: 0.5;
  }
  .intro-box::before { top: 8px; left: 8px; border-width: 1px 0 0 1px; }
  .intro-box::after  { bottom: 8px; right: 8px; border-width: 0 1px 1px 0; }
  .intro-eyebrow { font-family: 'Cinzel', serif; font-size: 0.55rem; letter-spacing: 0.5em; color: var(--gold); text-transform: uppercase; margin-bottom: 1.2rem; }
  .intro-title { font-family: 'Cinzel', serif; font-size: clamp(1.4rem, 4vw, 2.2rem); font-weight: 600; color: var(--text); margin-bottom: 1.5rem; line-height: 1.2; }
  .intro-body { font-size: 1rem; font-style: italic; color: var(--text-dim); line-height: 1.85; margin-bottom: 0.75rem; }
  .intro-hints { display: flex; flex-direction: column; gap: 0.4rem; margin: 1.4rem 0 2rem; }
  .intro-hint { font-family: 'Cinzel', serif; font-size: 0.55rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-dim); display: flex; align-items: center; justify-content: center; gap: 0.6rem; }
  .intro-hint span.icon { color: var(--gold); font-size: 0.75rem; }
  .intro-enter {
    font-family: 'Cinzel', serif; font-size: 0.65rem; letter-spacing: 0.4em;
    text-transform: uppercase; color: var(--gold);
    border: 1px solid var(--gold-dim); padding: 0.9rem 2.4rem;
    background: transparent; cursor: none; overflow: hidden;
    position: relative; transition: color 0.4s;
  }
  .intro-enter::before { content:''; position:absolute; inset:0; background:var(--gold); transform:translateX(-101%); transition:transform 0.4s; z-index:-1; }
  .intro-enter:hover::before { transform:translateX(0); }
  .intro-enter:hover { color: var(--ash); }
  .loading-bar-wrap {
    width: 100%; height: 2px; background: rgba(201,168,76,0.12);
    margin-top: 1.2rem; overflow: hidden; opacity: 0; transition: opacity 0.3s;
  }
  .loading-bar-wrap.active { opacity: 1; }
  .loading-bar {
    height: 100%; width: 0%;
    background: linear-gradient(90deg, var(--gold-dim), var(--gold));
    transition: width 0.4s ease;
    box-shadow: 0 0 8px rgba(201,168,76,0.5);
  }

  /* Pre-show state — before audio is fetched */
  #intro-modal.pre-show { opacity: 0; pointer-events: none; }

  /* Fetch progress bar (top of page, visible during background fetch) */
  #fetch-bar-wrap {
    position: fixed; top: 0; left: 0; right: 0; height: 2px;
    background: rgba(201,168,76,0.08); z-index: 1999;
    pointer-events: none; opacity: 0; transition: opacity 0.4s;
  }
  #fetch-bar-wrap.active { opacity: 1; }
  #fetch-bar {
    height: 100%; width: 0%;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    transition: width 0.5s ease;
  }

  /* ── Scroll arrow ── */
  #scroll-arrow {
    position: fixed; bottom: 2rem; left: 50%;
    transform: translateX(-50%) translateY(10px);
    z-index: 450; opacity: 0; pointer-events: none;
    transition: opacity 0.6s, transform 0.6s;
    display: flex; flex-direction: column; align-items: center; gap: 4px;
  }
  #scroll-arrow.show { opacity: 1; transform: translateX(-50%) translateY(0); }
  #scroll-arrow.hide { opacity: 0; transform: translateX(-50%) translateY(10px); }
  .arrow-label { font-family: 'Cinzel', serif; font-size: 0.6rem; letter-spacing: 0.35em; text-transform: uppercase; color: var(--gold); text-shadow: 0 0 12px rgba(201,168,76,0.6); }
  .arrow-chevron { width: 26px; height: 26px; border-right: 1px solid var(--gold); border-bottom: 1px solid var(--gold); transform: rotate(45deg); margin-top: -6px; animation: bounce 1.8s ease-in-out infinite; opacity: 0.85; }
  @keyframes bounce { 0%,100%{transform:translateY(0) rotate(45deg)} 50%{transform:translateY(5px) rotate(45deg)} }

  #visualiser { position: fixed; bottom: 0; left: 6%; right: 6%; height: 40px; z-index: 400; pointer-events: none; display: flex; align-items: flex-end; justify-content: stretch; gap: 1px; padding: 0 0 3px; opacity: 0; transition: opacity 0.5s; }
  #visualiser.active { opacity: 0.4; filter: drop-shadow(0 0 6px rgba(201,168,76,0.5)); }
  .vb { flex: 1; min-width: 0; background: var(--gold); border-radius: 1px 1px 0 0; }

  /* ══════════════════════════════
     HERO
  ══════════════════════════════ */
  #hero {
    height: 100vh; position: relative; overflow: hidden;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; opacity: 0; animation: hfade 2s 0.3s forwards;
  }
  @keyframes hfade { to { opacity:1; } }
  .hero-bg { position: absolute; inset: 0; background: radial-gradient(ellipse 80% 60% at 50% 55%, rgba(201,168,76,0.04) 0%, transparent 70%); }
  .ruins-svg { position: absolute; bottom: 0; left: 0; width: 100%; opacity: 0.1; }

  .hero-eyebrow { font-family: 'Cinzel', serif; font-size: 0.65rem; letter-spacing: 0.5em; color: var(--gold); text-transform: uppercase; margin-bottom: 1.5rem; opacity: 0; animation: fup 1.4s 0.6s forwards; position: relative; z-index: 2; }
  .hero-title { font-family: 'Cinzel', serif; font-size: clamp(3.5rem, 11vw, 9rem); font-weight: 900; line-height: 0.88; color: var(--text); opacity: 0; animation: fup 1.4s 0.9s forwards; position: relative; z-index: 2; }
  .hero-title em { display: block; font-style: italic; font-weight: 400; color: var(--gold); font-size: 0.52em; letter-spacing: 0.07em; margin-top: 0.25em; }
  .hero-sub { margin-top: 1.5rem; font-size: 1.1rem; font-style: italic; color: var(--text-dim); letter-spacing: 0.04em; opacity: 0; animation: fup 1.4s 1.2s forwards; position: relative; z-index: 2; max-width: 400px; line-height: 1.7; }
  .hero-rule { display: flex; align-items: center; gap: 1rem; margin-top: 2.5rem; opacity: 0; animation: fup 1.4s 1.5s forwards; position: relative; z-index: 2; }
  .rl { width: 50px; height: 1px; background: linear-gradient(to right, transparent, var(--gold-dim)); }
  .rl.r { background: linear-gradient(to left, transparent, var(--gold-dim)); }
  .hero-rule span { font-family: 'Cinzel', serif; color: var(--gold-dim); font-size: 0.65rem; letter-spacing: 0.2em; }

  .begin-btn {
    margin-top: 2.5rem; font-family: 'Cinzel', serif; font-size: 0.7rem;
    letter-spacing: 0.4em; text-transform: uppercase; color: var(--gold);
    border: 1px solid var(--gold-dim); padding: 1.1rem 3rem;
    background: transparent; cursor: none;
    opacity: 0; animation: fup 1.4s 1.8s forwards;
    position: relative; z-index: 2; overflow: hidden; transition: color 0.4s;
  }
  .begin-btn::before { content:''; position:absolute; inset:0; background:var(--gold); transform:translateX(-101%); transition:transform 0.4s; z-index:-1; }
  .begin-btn:hover::before { transform:translateX(0); }
  .begin-btn:hover { color: var(--ash); }

  @keyframes fup { from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:translateY(0)} }

  /* ══════════════════════════════
     SCENE
  ══════════════════════════════ */
  .scene { padding: 0 0 6vh; background: var(--ash); }

  .scene-frame {
    width: 100%; aspect-ratio: 16/9; max-height: 72vh;
    position: relative; overflow: hidden; background: var(--stone);
  }
  .scene-frame img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transform: scale(1.04); transition: transform 10s ease;
  }
  .scene.in-view .scene-frame img { transform: scale(1); }
  .scene-frame::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 35%; background: linear-gradient(to bottom, transparent, var(--ash)); pointer-events: none; }
  .scene-frame::before { content: ''; position: absolute; inset: 12px; z-index: 2; pointer-events: none; border: 1px solid rgba(201,168,76,0.2); }

  .scene-body { max-width: 1100px; margin: 0 auto; padding: 3vh 8vw 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6vw; align-items: start; }

  .scene-mood { font-family: 'Cinzel', serif; font-size: 0.62rem; letter-spacing: 0.35em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.75rem; opacity: 0; transform: translateY(16px); transition: opacity 0.8s, transform 0.8s; }
  .scene.in-view .scene-mood { opacity: 1; transform: translateY(0); }

  .scene-title { font-family: 'Cinzel', serif; font-size: clamp(1.5rem, 3vw, 2.6rem); font-weight: 600; line-height: 1.15; color: var(--text); margin-bottom: 1rem; opacity: 0; transform: translateY(16px); transition: opacity 0.8s 0.1s, transform 0.8s 0.1s; }
  .scene.in-view .scene-title { opacity: 1; transform: translateY(0); }

  .traveller-line { font-size: 0.95rem; font-style: italic; color: var(--gold); opacity: 0; transform: translateY(12px); transition: opacity 0.8s 0.2s, transform 0.8s 0.2s; margin-bottom: 0.9rem; line-height: 1.6; border-left: 1px solid var(--gold-dim); padding-left: 1rem; }
  .scene.in-view .traveller-line { opacity: 0.75; transform: translateY(0); }

  .scene-text { font-size: 1.05rem; line-height: 1.85; color: var(--text-dim); font-style: italic; opacity: 0; transform: translateY(16px); transition: opacity 0.8s 0.3s, transform 0.8s 0.3s; }
  .scene.in-view .scene-text { opacity: 1; transform: translateY(0); }

  .stem-chart { display: flex; flex-direction: column; gap: 0.6rem; opacity: 0; transform: translateY(16px); transition: opacity 0.8s 0.35s, transform 0.8s 0.35s; padding-top: 0.5rem; }
  .scene.in-view .stem-chart { opacity: 1; transform: translateY(0); }
  .stem-chart-label { font-family: 'Cinzel', serif; font-size: 0.55rem; letter-spacing: 0.35em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 0.4rem; }

  .sc-row { display: flex; align-items: center; gap: 0.75rem; }
  .sc-lbl { font-family: 'Cinzel', serif; font-size: 0.5rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-dim); width: 95px; flex-shrink: 0; }
  .sc-track { flex: 1; height: 1px; background: rgba(255,255,255,0.07); position: relative; }
  .sc-fill { position: absolute; left: 0; top: 0; height: 100%; background: linear-gradient(to right, var(--gold-dim), var(--gold)); width: 0; transition: width 1.8s ease; }
  .scene.in-view .sc-fill { width: var(--w); }
  .sc-pip { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-dim); flex-shrink: 0; transition: background 0.6s, box-shadow 0.6s; }
  .scene.in-view .sc-pip { background: var(--gold); box-shadow: 0 0 5px var(--gold); }

  /* ── Impact ── */
  .impact { height: 45vh; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
  .impact-rule { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 0; height: 1px; background: linear-gradient(to right, transparent, var(--gold-dim), transparent); transition: width 2s ease; }
  .impact.in-view .impact-rule { width: 65vw; }
  .impact-text { font-family: 'Cinzel', serif; font-size: clamp(1.3rem, 3.5vw, 3rem); font-weight: 600; text-align: center; color: var(--text); max-width: 680px; padding: 0 2rem; opacity: 0; transform: scale(0.96); transition: opacity 1.4s, transform 1.4s; line-height: 1.35; position: relative; z-index: 1; }
  .impact.in-view .impact-text { opacity: 1; transform: scale(1); }
  .impact-text em { color: var(--gold); font-style: italic; }

  /* ── Outro ── */
  #outro { height: 100vh; display: flex; align-items: center; justify-content: center; flex-direction: column; text-align: center; gap: 2rem; position: relative; overflow: hidden; }
  #outro::before { content:''; position:absolute; inset:0; background:radial-gradient(ellipse 70% 50% at 50% 50%, rgba(201,168,76,0.06) 0%, transparent 70%); animation: breathe 4s ease-in-out infinite; }
  @keyframes breathe { 0%,100%{opacity:0.5} 50%{opacity:1} }
  .outro-title { font-family: 'Cinzel', serif; font-size: clamp(2rem, 6vw, 5.5rem); font-weight: 900; line-height: 1.05; letter-spacing: 0.08em; color: var(--text); text-transform: uppercase; opacity: 0; transform: translateY(28px); transition: opacity 2s, transform 2s; position: relative; z-index: 2; }
  .outro-title.revealed { opacity: 1; transform: translateY(0); }
  .outro-sub { font-family: 'Cinzel', serif; font-size: clamp(0.65rem, 1.6vw, 1rem); letter-spacing: 0.5em; color: var(--gold); text-transform: uppercase; opacity: 0; transform: translateY(16px); transition: opacity 2s 0.5s, transform 2s 0.5s; position: relative; z-index: 2; }
  .outro-sub.revealed { opacity: 0.85; transform: translateY(0); }

  /* Outro stem chart — uses .outro-in-view instead of .scene.in-view */
  #outro.outro-in-view .sc-fill { width: var(--w); }
  #outro.outro-in-view .sc-pip { background: var(--gold); box-shadow: 0 0 5px var(--gold); }

  /* ── Credits ── */
  #credits { min-height: 80vh; display: flex; align-items: center; justify-content: center; flex-direction: column; text-align: center; gap: 1.5rem; padding: 4rem 2rem; opacity: 0; transition: opacity 3s; pointer-events: none; }
  #credits.revealed { opacity: 1; pointer-events: auto; }
  .credits-hl { font-family: 'Cinzel', serif; font-size: clamp(0.7rem, 1.8vw, 1rem); letter-spacing: 0.5em; color: var(--gold); text-transform: uppercase; opacity: 0; transform: translateY(14px); transition: opacity 2s 0.4s, transform 2s 0.4s; }
  #credits.revealed .credits-hl { opacity: 1; transform: translateY(0); }
  .credits-body { font-size: 0.9rem; font-style: italic; color: var(--text-dim); line-height: 2.5; opacity: 0; transform: translateY(14px); transition: opacity 2s 0.9s, transform 2s 0.9s; }
  #credits.revealed .credits-body { opacity: 0.55; transform: translateY(0); }

  /* ── Footer ── */
  #site-footer { text-align: center; padding: 1.5rem 2rem 3.5rem; display: flex; flex-direction: column; align-items: center; gap: 1rem; opacity: 0; transition: opacity 3s 0.5s; pointer-events: none; }
  #credits.revealed + #site-footer { opacity: 1; pointer-events: auto; }
  .footer-divider { color: var(--gold-dim); font-size: 0.65rem; letter-spacing: 0.4em; opacity: 0.5; }
  .footer-name { font-family: 'Cinzel', serif; font-size: 0.65rem; letter-spacing: 0.35em; text-transform: uppercase; color: var(--gold); text-decoration: none; opacity: 0.75; transition: opacity 0.3s; }
  .footer-name:hover { opacity: 1; }
  .footer-links { display: flex; gap: 2rem; flex-wrap: wrap; justify-content: center; }
  .footer-links a { font-family: 'Cinzel', serif; font-size: 0.52rem; letter-spacing: 0.25em; text-transform: uppercase; color: var(--text-dim); text-decoration: none; opacity: 0.5; transition: opacity 0.3s, color 0.3s; }
  .footer-links a:hover { opacity: 1; color: var(--gold); }
  .footer-copy { font-size: 0.75rem; font-style: italic; color: var(--text-dim); opacity: 0.3; }

  /* ── Mobile: restore cursor on touch devices ── */
  @media (hover: none) { body { cursor: auto; } .cursor, .cursor-ring { display: none; } }

  /* ── Mobile: responsive layout ── */
  @media (max-width: 768px) {
    .scene-body { grid-template-columns: 1fr; gap: 2vh; padding: 2vh 5vw 0; }
    .intro-box { padding: 2rem 1.5rem; }
    #controls { bottom: 1rem; right: 1rem; }
    .hero-sub { padding: 0 1.5rem; }
  }

  /* ── Keyboard focus fallback ── */
  :focus-visible { cursor: auto; outline: 2px solid var(--gold); outline-offset: 4px; }

  /* ── Reduced motion ── */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }

  /* ── Compositing hints ── */
  .cursor, .cursor-ring { will-change: transform; }
  #progress-bar { will-change: width; }