/* 山海密室 · 主題：赭石、玄青、鳥篆金 */
:root {
  color-scheme: dark;
  --bg-deep: #12161c;
  --bg-panel: #1a222d;
  --line: rgba(232, 214, 178, 0.22);
  --text: #f3ebe0;
  --muted: rgba(243, 235, 224, 0.62);
  --gold: #c9a227;
  --gold-soft: rgba(201, 162, 39, 0.35);
  --teal: #2d6b6b;
  --coral: #c75c5c;
  --east: #5a9e7a;
  --south: #e07a4f;
  --west: #9b8cc4;
  --north: #6eb3d9;
  --center: #c9a227;
  --radius: 14px;
  --font-serif: "Noto Serif TC", "Songti SC", serif;
  --font-sans: "Noto Sans TC", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(45, 107, 107, 0.35), transparent 55%),
    radial-gradient(circle at 90% 70%, rgba(201, 162, 39, 0.08), transparent 40%),
    var(--bg-deep);
  color: var(--text);
  line-height: 1.55;
}

.app-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1rem 1.5rem;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.top-home {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
}

.top-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-role {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
}

.stage {
  flex: 1;
  padding: 1.25rem 0 2rem;
}

.screen {
  display: none;
  animation: fadeIn 0.35s ease;
}

.screen-active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.scroll-panel,
.room-panel {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
}

.title-xl {
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 4vw, 2rem);
  margin: 0 0 0.75rem;
  color: var(--gold);
}

.title-lg {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin: 0 0 0.5rem;
}

.title-md {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin: 0 0 0.65rem;
}

.lead {
  margin: 0 0 1rem;
  font-size: 1.02rem;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 0.85rem;
}

code {
  font-size: 0.88em;
  background: rgba(0, 0, 0, 0.35);
  padding: 0.12em 0.35em;
  border-radius: 6px;
}

.btn-primary,
.btn-ghost,
.btn-choice,
.btn-finale {
  font-family: var(--font-sans);
  cursor: pointer;
  border-radius: 10px;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(165deg, var(--gold), #9a7619);
  color: #1a1206;
  font-weight: 700;
  padding: 0.65rem 1.25rem;
  margin-top: 0.75rem;
}

.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  padding: 0.45rem 0.65rem;
  border: 1px solid transparent;
}

.btn-ghost:hover {
  border-color: var(--line);
}

.btn-back {
  margin-top: 1.25rem;
  width: 100%;
  border: 1px solid var(--line);
}

.btn-finale {
  width: 100%;
  margin-top: 1.35rem;
  padding: 0.85rem;
  font-weight: 700;
  background: rgba(201, 162, 39, 0.18);
  color: var(--gold);
  border: 1px solid var(--gold-soft);
}

.btn-finale:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.hub-wrap {
  text-align: center;
}

.hub-lead {
  margin: 0 auto 1rem;
  max-width: 34rem;
}

.seals-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 4.2rem;
  padding: 0.35rem 0.45rem;
  border-radius: 10px;
  border: 1px dashed var(--line);
  font-size: 0.7rem;
  color: var(--muted);
}

.seal-inner {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.seal.done {
  border-style: solid;
  border-color: var(--gold-soft);
  color: var(--gold);
}

.compass-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.65rem;
  grid-template-areas:
    ". east ."
    "west . north"
    ". south ."
    "center center center";
  align-items: stretch;
  justify-items: stretch;
}

.compass-node {
  text-align: left;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: inherit;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.compass-node:hover {
  transform: translateY(-2px);
  border-color: var(--gold-soft);
}

.compass-east {
  grid-area: east;
  border-left: 4px solid var(--east);
}
.compass-south {
  grid-area: south;
  border-left: 4px solid var(--south);
}
.compass-west {
  grid-area: west;
  border-left: 4px solid var(--west);
}
.compass-north {
  grid-area: north;
  border-left: 4px solid var(--north);
}
.compass-center {
  grid-area: center;
  border-left: 4px solid var(--center);
}

.compass-dir {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
}

.compass-beast {
  font-weight: 700;
}

.compass-tag {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.room-flavor {
  color: var(--muted);
  margin: 0 0 1rem;
}

.feedback {
  min-height: 1.5rem;
  margin-top: 0.75rem;
  font-size: 0.92rem;
}

.feedback.ok {
  color: var(--east);
}
.feedback.err {
  color: var(--coral);
}

.field-label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.field-label input {
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  font-size: 1.1rem;
}

/* 九尾網格 */
.fox-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  max-width: 280px;
  margin: 0 auto;
}

.fox-grid button {
  aspect-ratio: 1;
  font-size: 1.35rem;
  font-weight: 700;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(90, 158, 122, 0.15);
  color: var(--text);
  cursor: pointer;
}

.fox-grid button.done {
  opacity: 0.35;
  cursor: default;
}

.fox-grid button.err-flash {
  animation: errFlash 0.4s ease;
}

@keyframes errFlash {
  50% {
    background: rgba(199, 92, 92, 0.5);
  }
}

/* 燭龍 */
.zhulong-stage {
  text-align: center;
}

.sky-disk {
  width: 140px;
  height: 140px;
  margin: 0 auto 0.75rem;
  border-radius: 50%;
  border: 2px solid var(--line);
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.12), transparent 55%);
  position: relative;
  overflow: hidden;
}

.sky-disk.is-day {
  background: radial-gradient(circle at 40% 35%, rgba(255, 214, 120, 0.45), rgba(45, 107, 107, 0.25));
}

.sky-disk.is-night {
  background: radial-gradient(circle at 60% 40%, rgba(80, 110, 180, 0.45), rgba(18, 22, 28, 0.9));
}

.sun-face,
.moon-face {
  font-size: 3rem;
  position: absolute;
  transition: opacity 0.35s ease;
}

.sky-disk.is-day .moon-face {
  opacity: 0;
}
.sky-disk.is-night .sun-face {
  opacity: 0;
}

.phase-label {
  margin: 0 0 0.75rem;
  font-weight: 700;
}

/* 刑天石碑 */
.xingtian-stele-wrap {
  perspective: 400px;
  margin: 1rem 0;
  display: flex;
  justify-content: center;
}

.xingtian-stele {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  padding: 1rem 1.5rem;
  border: 3px double var(--gold-soft);
  border-radius: 8px;
  background: rgba(155, 140, 196, 0.12);
  transform: rotate(180deg);
}

/* 精衛 */
.jingwei-counter {
  text-align: center;
}

.stones {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: center;
  min-height: 2rem;
  margin-bottom: 0.5rem;
}

.stones span {
  width: 12px;
  height: 12px;
  border-radius: 40% 60% 55% 45%;
  background: var(--north);
  opacity: 0.9;
}

/* 夸父 */
.kuafu-choices {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.btn-choice {
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.btn-choice:hover {
  border-color: var(--gold-soft);
}

.win-panel {
  text-align: center;
}

.app-footer {
  text-align: center;
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
}