/* =========================================================
   赛博三元宫 — 视觉系统
   岭南漆金 × 数据青
   ========================================================= */

:root {
  /* 材质色 */
  --ink-900: #0b0908;
  --ink-800: #14100e;
  --ink-700: #1d1714;
  --ink-600: #2a211c;
  --stone:   #3a2e26;

  --lacquer:    #8e2f24;
  --lacquer-dk: #5d1f18;
  --gold:       #c9a227;
  --gold-lt:    #e9cd7a;
  --gold-dk:    #7d611a;
  --jade:       #2f5d54;
  --jade-lt:    #4d8a7a;
  --ash:        #cfc7b8;
  --paper:      #efe6d2;

  /* 数据色 */
  --cy:      #58d8c6;
  --cy-dim:  #2b7f76;
  --cy-glow: rgba(88, 216, 198, 0.18);

  --font-display: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-body: "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  --hair: rgba(201, 162, 39, 0.26);
  --hair-soft: rgba(233, 205, 122, 0.12);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink-900);
  color: var(--ash);
  font-family: var(--font-body);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overscroll-behavior: none;
}

body { min-height: 100svh; }

.mono { font-family: var(--font-mono); letter-spacing: 0.02em; }

/* 颗粒噪点：覆盖全屏的物理质感，不是渐变光斑 */
.grain {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.32;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='160' height='160' filter='url(%23n)' opacity='0.5'/></svg>");
}

/* ============ 舞台切换 ============ */
.stage {
  position: fixed;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), visibility 0s linear 0.5s;
  overflow: hidden;
}
.stage.is-active {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease), visibility 0s;
}

/* ============ 山门 ============ */
.gate {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 22px;
  padding: 56px 26px calc(40px + env(safe-area-inset-bottom));
  text-align: center;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(120% 78% at 50% 8%, rgba(142, 47, 36, 0.24) 0%, rgba(11, 9, 8, 0) 62%),
    radial-gradient(90% 60% at 50% 104%, rgba(47, 93, 84, 0.18) 0%, rgba(11, 9, 8, 0) 60%);
}

.gate-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
  opacity: 0.72;
}

.gate-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(46px, 15vw, 86px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--paper);
  display: flex;
  gap: clamp(6px, 2.2vw, 14px);
}
.gate-title-line {
  display: inline-block;
  opacity: 0;
  transform: translateY(18px);
  animation: gateIn 0.8s var(--ease) forwards;
  text-shadow: 0 0 26px rgba(233, 205, 122, 0.22);
}
.gate-title-line:nth-child(1) { animation-delay: 0.10s; }
.gate-title-line:nth-child(2) { animation-delay: 0.20s; }
.gate-title-line:nth-child(3) { animation-delay: 0.30s; }
.gate-title-line:nth-child(4) { animation-delay: 0.40s; }
.gate-title-line:nth-child(5) { animation-delay: 0.50s; }

@keyframes gateIn {
  to { opacity: 1; transform: none; }
}

.gate-sub {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  color: var(--ash);
  opacity: 0.6;
}

.gate-meta {
  margin: 6px 0 0;
  width: min(520px, 100%);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  display: grid;
  gap: 0;
}
.gate-meta > div {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 11px 4px;
  border-bottom: 1px solid var(--hair-soft);
  text-align: left;
}
.gate-meta > div:last-child { border-bottom: 0; }
.gate-meta dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gold);
  opacity: 0.7;
}
.gate-meta dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ash);
  opacity: 0.82;
}

.gate-note {
  margin: 0;
  font-size: 11px;
  line-height: 1.7;
  color: var(--ash);
  opacity: 0.38;
  max-width: 34ch;
}

.gate-legal {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ash);
  opacity: 0.3;
}

/* ============ 按钮 ============ */
.btn {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.14em;
  border: 1px solid var(--hair);
  background: transparent;
  color: var(--paper);
  padding: 13px 26px;
  cursor: pointer;
  position: relative;
  transition: background 0.28s var(--ease), color 0.28s var(--ease), border-color 0.28s var(--ease);
}
.btn:hover { border-color: var(--gold); background: rgba(201, 162, 39, 0.08); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 1px solid var(--cy); outline-offset: 3px; }
.btn[disabled] { opacity: 0.32; cursor: not-allowed; }

.btn-primary {
  background: var(--lacquer);
  border-color: var(--lacquer-dk);
  color: var(--paper);
}
.btn-primary:hover { background: #a1372a; border-color: var(--gold-dk); }

.btn-major {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  padding: 17px 42px;
  border-color: var(--gold-dk);
  background: var(--ink-800);
}
.btn-major:hover { background: var(--lacquer); border-color: var(--gold); }
.btn-major-mark {
  position: absolute;
  inset: -4px;
  border: 1px solid var(--hair-soft);
  pointer-events: none;
}

.btn-ghost { padding: 11px 20px; font-size: 13px; }

.btn.is-lighting {
  background: var(--cy-dim);
  border-color: var(--cy);
  color: var(--ink-900);
}

/* ============ 殿内布局 ============ */
.hall {
  height: 100svh;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
}

.scene-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  background-color: var(--ink-900);
  overflow: hidden;
}

.scene-frame {
  position: relative;
  width: 100%;
  max-width: 560px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.scene {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.scene-stage {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
}
.scene-stage > svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

#offeredSticks {
  transition: opacity 0.7s var(--ease);
}

.scene-figure {
  position: absolute;
  left: 42%;
  bottom: 0;
  transform: translateX(-50%);
  width: 40%;
  pointer-events: none;
  transform-origin: 50% 100%;
}
.scene-figure > svg {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 -12px 26px rgba(0, 0, 0, 0.55));
}
.scene-figure.is-bowing { animation: bow 2.1s var(--ease); }

.scene-tube {
  position: absolute;
  right: 5%;
  bottom: 15%;
  width: 74px;
  pointer-events: none;
  filter: drop-shadow(0 12px 20px rgba(0, 0, 0, 0.6));
  z-index: 2;
}
.scene-tube > svg { width: 100%; height: auto; display: block; }
.scene-tube.is-shaking { animation: tubeShake 1s linear; }

@keyframes tubeShake {
  0%   { transform: rotate(0deg); }
  12%  { transform: rotate(-7deg); }
  32%  { transform: rotate(6deg); }
  52%  { transform: rotate(-5deg); }
  72%  { transform: rotate(4deg); }
  90%  { transform: rotate(-2deg); }
  100% { transform: rotate(0deg); }
}

@keyframes bow {
  0%   { transform: translateX(-50%) rotate(0deg); }
  18%  { transform: translateX(-50%) rotate(0deg) scaleY(0.985); }
  40%  { transform: translateX(-50%) rotate(1.2deg) translateY(2%); }
  62%  { transform: translateX(-50%) rotate(-0.6deg) translateY(0.4%); }
  100% { transform: translateX(-50%) rotate(0deg); }
}

.scene-fx {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.scene-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(76% 58% at 50% 42%, rgba(11, 9, 8, 0) 38%, rgba(11, 9, 8, 0.72) 100%);
}

.scene-scanline {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background: repeating-linear-gradient(
    to bottom,
    rgba(88, 216, 198, 0.07) 0px,
    rgba(88, 216, 198, 0.07) 1px,
    rgba(11, 9, 8, 0) 1px,
    rgba(11, 9, 8, 0) 3px
  );
}

.hud {
  position: absolute;
  top: calc(10px + env(safe-area-inset-top));
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--gold);
  opacity: 0.82;
  z-index: 3;
  pointer-events: none;
}
.hud-tl { left: 14px; }
.hud-tr { right: 14px; text-align: right; }
.hud-dim { color: var(--cy); opacity: 0.6; font-size: 9px; }
.hud b { font-weight: 500; color: var(--paper); }

.scene-caption {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 8px 14px calc(8px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--hair-soft);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--ash);
  opacity: 0.42;
}
.scene-caption .mono { font-size: 9px; letter-spacing: 0.1em; }

/* ============ 侧栏 ============ */
.panel {
  border-top: 1px solid var(--hair);
  background: var(--ink-800);
  padding: 16px 18px calc(14px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 46svh;
  overflow-y: auto;
}

.panel-step-label {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--paper);
}
.panel-step-text {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--ash);
  opacity: 0.68;
}

.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.panel-foot { margin-top: auto; }

.wardrobe {
  border-top: 1px solid var(--hair-soft);
  padding-top: 12px;
  display: grid;
  gap: 11px;
}
.wardrobe-row { display: grid; gap: 6px; }
.wardrobe-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--gold);
  opacity: 0.7;
}
.swatches { display: flex; flex-wrap: wrap; gap: 8px; }

.swatch {
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--hair);
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.swatch:hover { transform: translateY(-2px); }
.swatch:focus-visible { outline: 1px solid var(--cy); outline-offset: 2px; }
.swatch.is-on { border-color: var(--cy); }
.swatch.is-on::after {
  content: "";
  position: absolute;
  inset: -5px;
  border: 1px solid var(--cy-dim);
}
.swatch-chip { position: absolute; inset: 4px; }
.swatch-glyph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--paper);
}

.panel-legal {
  margin: 10px 0 0;
  font-size: 10px;
  line-height: 1.6;
  color: var(--ash);
  opacity: 0.3;
}

.panel-notes { display: none; }

.notes {
  margin: 8px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hair-soft);
}
.notes > div {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px solid var(--hair-soft);
}
.notes dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--gold);
  opacity: 0.66;
}
.notes dd {
  margin: 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--ash);
  opacity: 0.62;
}

/* ============ 签 ============ */
.oracle {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 56px 26px calc(46px + env(safe-area-inset-bottom));
  text-align: center;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(110% 70% at 50% 0%, rgba(201, 162, 39, 0.13) 0%, rgba(11, 9, 8, 0) 60%);
}
.oracle-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gold);
}
.oracle-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 11vw, 62px);
  letter-spacing: 0.14em;
  text-indent: 0.14em;
  color: var(--paper);
}
.oracle-verse {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 4.6vw, 21px);
  line-height: 2.1;
  letter-spacing: 0.16em;
  color: var(--ash);
  max-width: 22ch;
}
.oracle-rule {
  width: 46px;
  height: 1px;
  background: var(--gold);
  opacity: 0.5;
}
.oracle-reading {
  margin: 0;
  font-size: 13.5px;
  line-height: 2;
  color: var(--ash);
  opacity: 0.72;
  max-width: 30ch;
}
.oracle-note {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ash);
  opacity: 0.3;
}
.oracle-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

/* ============ 符牒 ============ */
.talisman {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 40px 22px calc(38px + env(safe-area-inset-bottom));
  background-color: var(--ink-900);
}
.talisman-kicker {
  margin: 0;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  color: var(--gold);
}
.talisman-frame {
  width: min(360px, 82vw);
  border: 1px solid var(--hair);
  padding: 8px;
  background: var(--ink-800);
}
.talisman-frame img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--hair-soft);
}
.talisman-actions { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; }
.talisman-note {
  margin: 0;
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--ash);
  opacity: 0.38;
  max-width: 32ch;
  text-align: center;
}

/* ============ 桌面 ============ */
@media (min-width: 900px) {
  .hall {
    grid-template-rows: none;
    grid-template-columns: minmax(0, 1fr) 380px;
  }
  .scene-frame { max-width: 620px; }
  .panel {
    border-top: 0;
    border-left: 1px solid var(--hair);
    max-height: none;
    padding: 34px 30px;
    gap: 20px;
    background: var(--ink-800);
  }
  .panel-step-label { font-size: 23px; }
  .panel-notes { display: block; }
  .wardrobe { margin-top: 4px; }
  .gate { gap: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .gate-title-line { opacity: 1; transform: none; }
}