:root {
  color-scheme: dark;
  --ink: #f3efe6;
  --muted: #aaa294;
  --quiet: #736d64;
  --paper: #151412;
  --panel: #201f1c;
  --panel-2: #292620;
  --line: #403b33;
  --gold: #d9b16f;
  --gold-2: #ad834a;
  --cyan: #35dce1;
  --red: #f0524f;
  --shadow: rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 42% 22%, rgba(217, 177, 111, 0.08), transparent 34rem),
    linear-gradient(135deg, #11100f, #1d1a16 48%, #11100f);
  color: var(--ink);
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  letter-spacing: 0;
}

button,
textarea,
input {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.shell {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) minmax(320px, 390px);
  grid-template-rows: minmax(0, 1fr);
  gap: 14px;
  height: 100vh;
  padding: 14px;
  overflow: hidden;
}

.shell.is-home {
  display: block;
  min-height: 100vh;
  height: auto;
  overflow: auto;
}

.shell.is-chooser {
  display: block;
  min-height: 100vh;
  height: auto;
  overflow: auto;
}

.left-rail,
.navigator,
.stage,
.map-chooser {
  min-width: 0;
}

.left-rail,
.navigator {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  box-shadow: 0 16px 44px var(--shadow);
}

.left-rail {
  display: none;
  grid-row: 1;
  border-radius: 8px;
  padding: 14px;
}

.shell.is-home .left-rail {
  display: flex;
  min-height: calc(100vh - 28px);
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(14px, 3vw, 28px);
}

.shell.is-home .stage,
.shell.is-home .navigator,
.shell.is-home .map-chooser {
  display: none;
}

.shell.is-chooser .left-rail,
.shell.is-chooser .stage,
.shell.is-chooser .navigator {
  display: none;
}

.map-chooser {
  display: none;
  max-width: 1280px;
  margin: 0 auto;
  min-height: calc(100vh - 28px);
}

.shell.is-chooser .map-chooser {
  display: block;
}

.chooser-head {
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 14px;
  padding: 14px;
  background: color-mix(in srgb, var(--panel) 90%, transparent);
  box-shadow: 0 16px 44px var(--shadow);
}

.chooser-head h2 {
  margin: 0;
  font-family: Georgia, "Songti SC", serif;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.05;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.choice-card {
  display: grid;
  grid-template-rows: minmax(240px, 1fr) auto;
  min-height: 340px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #171615;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.choice-card:hover,
.choice-card:focus-visible {
  border-color: var(--gold);
  background: #27221c;
}

.choice-card img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: contain;
  border: 1px solid #342f28;
  border-radius: 6px;
  background: #050505;
}

.choice-card span {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 10px;
}

.choice-card strong {
  display: grid;
  gap: 4px;
  font-size: 1.05rem;
}

.choice-name-input {
  width: min(100%, 14rem);
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 4px 6px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-weight: 700;
}

.choice-name-input:hover,
.choice-name-input:focus {
  border-color: rgba(221, 180, 103, 0.65);
  background: rgba(0, 0, 0, 0.28);
  outline: none;
}

.choice-card small {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.choice-card em {
  color: var(--gold);
  font-style: normal;
  font-size: 0.78rem;
}

.navigator {
  grid-column: 2;
  grid-row: 1;
  border-radius: 8px;
  padding: 14px;
  gap: 14px;
  height: calc(100vh - 28px);
  overflow: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--gold-2);
  background: linear-gradient(180deg, #3b2c1f, #1b1713);
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 1.35rem;
  font-weight: 700;
}

.brand h1,
.panel-title h2,
.stage-head h2 {
  margin: 0;
  line-height: 1.05;
}

.brand h1 {
  font-family: Georgia, "Songti SC", serif;
  font-size: 1.35rem;
}

.brand p,
.credits,
.eyebrow {
  color: var(--muted);
}

.brand p {
  margin: 5px 0 0;
  font-size: 0.78rem;
}

.toolbar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin: 14px 0;
}

.home-prompt {
  display: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 14px;
  padding: 12px 14px;
  background:
    linear-gradient(90deg, rgba(53, 220, 225, 0.08), transparent 62%),
    #171615;
}

.home-prompt span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.76rem;
}

.home-prompt strong {
  font-size: clamp(1.2rem, 3vw, 1.9rem);
  font-family: Georgia, "Songti SC", serif;
  font-weight: 700;
}

.shell.is-home .home-prompt {
  display: block;
}

.chip,
.ghost-btn,
.primary-btn,
.save-btn,
.icon-btn {
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.chip {
  min-height: 34px;
  border-radius: 999px;
  background: #191816;
  font-size: 0.8rem;
}

.chip.is-active,
.chip:hover,
.ghost-btn:hover,
.save-btn:hover,
.icon-btn:hover {
  border-color: var(--gold);
  background: #332920;
}

.map-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 9px;
  overflow: auto;
  padding-right: 3px;
}

.shell.is-home .map-list {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  overflow: visible;
  padding-right: 0;
}

.map-card {
  position: relative;
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 72px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 9px 6px 6px;
  background: #191816;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.shell.is-home .map-card {
  grid-template-columns: 1fr;
  align-content: start;
  min-height: 210px;
  padding: 8px;
}

.shell.is-home .map-card img {
  width: 100%;
  height: 145px;
}

.shell.is-home .map-card em {
  position: absolute;
  right: 16px;
  bottom: 14px;
}

.map-card:hover,
.map-card.is-active {
  border-color: var(--gold);
  background: #27221c;
}

.map-card img {
  width: 72px;
  height: 58px;
  object-fit: cover;
  border-radius: 5px;
  border: 1px solid #342f28;
}

.map-card strong {
  display: block;
  margin-bottom: 5px;
  font-size: 0.95rem;
}

.map-card span {
  color: var(--muted);
  font-size: 0.74rem;
}

.map-card em {
  color: var(--gold);
  font-style: normal;
  font-size: 0.78rem;
}

.credits {
  display: grid;
  gap: 3px;
  margin-top: auto;
  padding-top: 14px;
  font-size: 0.7rem;
  line-height: 1.45;
}

.stage {
  grid-column: 1;
  grid-row: 1;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 8px;
  min-height: 0;
  height: calc(100vh - 28px);
}

.stage-head,
.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel) 86%, transparent);
  padding: 10px 12px;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.stage-head h2 {
  font-family: Georgia, "Songti SC", serif;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
}

.head-actions {
  display: flex;
  gap: 8px;
}

.text-btn {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #191816;
  color: var(--gold);
  cursor: pointer;
}

.text-btn:hover {
  border-color: var(--gold);
  background: #332920;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: #191816;
}

svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.map-frame {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  overflow: hidden;
  touch-action: none;
  cursor: zoom-in;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(53, 220, 225, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(217, 177, 111, 0.05) 1px, transparent 1px),
    #070707;
  background-size: 48px 48px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02), 0 18px 60px var(--shadow);
}

.map-frame img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center center;
  transform-origin: center center;
  transition: transform 120ms ease;
  user-select: none;
  -webkit-user-drag: none;
  will-change: transform;
}

.map-frame.is-zoomed {
  cursor: grab;
}

.map-frame.is-panning {
  cursor: grabbing;
}

.map-frame.is-panning img {
  transition: none;
}

.zoom-badge {
  position: absolute;
  right: 12px;
  bottom: 10px;
  z-index: 2;
  border: 1px solid rgba(217, 177, 111, 0.48);
  border-radius: 999px;
  padding: 4px 9px;
  background: rgba(12, 11, 10, 0.76);
  color: var(--gold);
  font-size: 0.72rem;
  pointer-events: none;
}

.map-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  min-height: 66px;
  max-height: 72px;
  padding: 0 2px 3px;
}

.thumb {
  flex: 0 0 76px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #171615;
  color: var(--muted);
  cursor: pointer;
  overflow: hidden;
  text-align: left;
}

.thumb.is-active,
.thumb:hover {
  color: var(--ink);
  border-color: var(--gold);
}

.thumb img {
  display: block;
  width: 100%;
  height: 42px;
  object-fit: cover;
}

.thumb span {
  display: block;
  padding: 5px 6px;
  font-size: 0.68rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.panel-title {
  padding: 0 0 12px;
  border-width: 0 0 1px;
  border-radius: 0;
  background: transparent;
}

.panel-title h2 {
  font-family: Georgia, "Songti SC", serif;
  font-size: 1.25rem;
}

.route-picker {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #171615;
}

.route-picker label {
  color: var(--muted);
  font-size: 0.82rem;
}

.route-picker select,
.route-picker button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #11100f;
  color: var(--ink);
}

.route-picker select {
  min-width: 0;
  padding: 0 9px;
}

.route-picker button {
  padding: 0 10px;
  color: #11100f;
  background: #59b55c;
  border-color: #59b55c;
  cursor: pointer;
  font-weight: 700;
}

.status-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--quiet);
  box-shadow: 0 0 0 6px rgba(115, 109, 100, 0.12);
}

.status-dot.is-speaking {
  background: var(--cyan);
  box-shadow: 0 0 0 6px rgba(53, 220, 225, 0.12);
}

.status-dot.is-auto {
  background: var(--gold);
  box-shadow: 0 0 0 6px rgba(217, 177, 111, 0.16);
}

.current-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 16px;
  background:
    linear-gradient(180deg, rgba(53, 220, 225, 0.08), transparent),
    #11100f;
  box-shadow: inset 0 0 0 1px rgba(53, 220, 225, 0.06);
}

.current-step span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: #31261b;
  color: var(--gold);
  font-family: Georgia, serif;
  font-weight: 700;
}

.step-copy {
  min-width: 0;
}

.step-copy small {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.74rem;
}

.current-step p {
  margin: 0;
  color: #b9d6ff;
  font-size: clamp(1.16rem, 2vw, 1.55rem);
  font-weight: 800;
  line-height: 1.42;
  text-wrap: balance;
}

.current-step b,
.step-btn b {
  display: inline-flex;
  align-items: center;
  min-width: 42px;
  margin-right: 7px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 700;
}

.route-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #171615;
  color: var(--muted);
  font-size: 0.78rem;
}

.route-legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.route-legend i {
  width: 18px;
  height: 4px;
  border-radius: 999px;
  background: var(--quiet);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.route-legend .legend-red {
  background: var(--red);
}

.route-legend .legend-room {
  height: 12px;
  border-radius: 3px;
  background: #c38a70;
}

.route-legend .legend-hall {
  height: 12px;
  border-radius: 3px;
  background: #6f92c2;
}

.route-legend .legend-stair {
  background: repeating-linear-gradient(90deg, var(--gold) 0 3px, #5a4328 3px 6px);
}

.control-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.primary-btn,
.ghost-btn,
.save-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  border-radius: 8px;
  padding: 0 12px;
}

.primary-btn {
  background: var(--gold);
  border-color: var(--gold);
  color: #18130e;
  font-weight: 700;
}

.primary-btn:hover {
  background: #e6c181;
}

.ghost-btn,
.save-btn {
  background: #191816;
}

.ghost-btn.is-active {
  border-color: var(--cyan);
  background: rgba(53, 220, 225, 0.09);
}

.next-action {
  min-height: 72px;
  font-size: 1.16rem;
}

.prev-action,
.replay-action,
.listen-action {
  min-height: 54px;
}

.hidden-control,
.range-field {
  display: none;
}

.listen-text {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.range-field,
.note-box,
.voice-field {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.82rem;
}

.range-field {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.range-field input {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--gold);
}

.voice-field select {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
  background: #11100f;
  color: var(--ink);
}

.range-field,
.hidden-control {
  display: none;
}

.steps {
  display: grid;
  gap: 7px;
  overflow: auto;
  max-height: none;
  padding-right: 3px;
}

.step-btn {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 9px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px;
  background: #191816;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}

.step-btn:hover,
.step-btn.is-active {
  border-color: var(--gold);
  color: var(--ink);
}

.step-btn span {
  color: var(--gold);
  font-family: Georgia, serif;
}

.step-btn p {
  margin: 0;
  line-height: 1.45;
  font-size: 0.83rem;
}

.note-box textarea {
  width: 100%;
  resize: vertical;
  min-height: 92px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #12110f;
  color: var(--ink);
  line-height: 1.5;
}

.full-route-box textarea {
  min-height: 190px;
  max-height: 260px;
  resize: none;
  color: #d9e7ff;
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre-wrap;
  background:
    linear-gradient(180deg, rgba(53, 220, 225, 0.055), transparent 46%),
    #11100f;
}

.custom-note-box textarea {
  min-height: 76px;
}

.note-box textarea:focus,
button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.save-btn {
  color: var(--gold);
}

@media (max-width: 1160px) {
  .shell {
    grid-template-columns: minmax(390px, 1fr) minmax(300px, 360px);
  }

  .navigator {
    grid-column: 2;
    display: flex;
  }

  .panel-title,
  .control-grid,
  .steps,
  .note-box,
  .save-btn {
    grid-column: auto;
  }
}

@media (max-width: 760px) {
  .shell {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 100vh;
    overflow: auto;
    padding: 10px;
  }

  .left-rail {
    order: 3;
    grid-row: auto;
  }

  .stage {
    order: 1;
    min-height: 70vh;
    height: auto;
  }

  .navigator {
    order: 2;
    display: flex;
    height: auto;
  }

  .toolbar {
    grid-template-columns: repeat(3, 1fr);
  }

  .map-list {
    max-height: 40vh;
  }

  .stage-head {
    align-items: flex-start;
  }

  .head-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .icon-btn {
    width: 38px;
    height: 38px;
  }

  .map-frame {
    min-height: 56vh;
  }

  .choice-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    max-height: 220px;
  }
}

@media (max-width: 420px) {
  .route-picker {
    grid-template-columns: 1fr;
  }

  .map-card {
    grid-template-columns: 64px 1fr;
  }

  .map-card em {
    display: none;
  }

  .control-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}