:root {
  --hue: 28;
  --bg: oklch(0.94 0.03 var(--hue));
  --bg-deep: oklch(0.89 0.04 var(--hue));
  --ink: oklch(0.3 0.05 32);
  --ink-soft: oklch(0.44 0.04 35);
  --cinnabar: oklch(0.52 0.16 28);
  --jade: oklch(0.5 0.08 160);
  --gold: oklch(0.72 0.11 78);
  --line: oklch(0.74 0.04 45 / 0.55);
  --surface: oklch(0.985 0.012 80);
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --font-display: "ZCOOL QingKe HuangYou", "Noto Serif TC", serif;
  --font-ui: "Huninn", "Noto Serif TC", sans-serif;
  --font-story: "Noto Serif TC", serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100dvh;
  color: var(--ink);
  font-family: var(--font-ui);
  background:
    radial-gradient(1000px 420px at 50% -10%, oklch(0.98 0.03 80) 0%, transparent 70%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

button,
a {
  font-family: inherit;
}

.panel[hidden],
.toast[hidden],
.screen[hidden] {
  display: none !important;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -40px;
  z-index: 40;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--surface);
}

.skip-link:focus {
  top: 12px;
}

.screen {
  min-height: 100dvh;
}

.eyebrow {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
}

h1,
h2,
.brand,
.btn-primary {
  font-family: var(--font-display);
}

.screen-intro,
.screen-finale {
  display: grid;
  place-items: center;
  padding: var(--space-xl) var(--space-md);
}

.intro-frame,
.finale-card {
  width: min(100%, 46rem);
  padding: 48px 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 28px 60px oklch(0.4 0.05 32 / 0.12);
}

.intro-frame h1,
.finale-card h2 {
  margin: 8px 0 16px;
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  font-weight: 400;
  line-height: 1.1;
}

.intro-lead,
.summary-text,
.scene-body,
.panel-sheet p,
.panel-sheet li {
  margin: 0 0 12px;
  font-family: var(--font-story);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.intro-realms,
.summary-tags {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin: var(--space-lg) 0;
  padding: 0;
  list-style: none;
}

.summary-tags {
  grid-template-columns: repeat(2, 1fr);
}

.intro-realms li,
.summary-tags li {
  padding: var(--space-sm);
  background: oklch(0.96 0.02 70);
  font-size: 0.92rem;
}

.intro-realms span {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--cinnabar);
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.intro-note {
  margin: var(--space-lg) 0 0;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.btn-primary,
.btn-ghost,
.choice,
.text-btn {
  appearance: none;
  border: 0;
  cursor: pointer;
}

.btn-primary,
.btn-ghost,
.choice {
  min-height: 44px;
  padding: 10px 18px;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.btn-primary {
  background: var(--cinnabar);
  color: oklch(0.98 0.01 80);
}

.btn-ghost,
.choice {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.choice {
  width: 100%;
  justify-content: flex-start;
  text-align: left;
  background: var(--surface);
}

.btn-primary:hover,
.choice:hover,
.btn-ghost:hover {
  transform: translateY(-1px);
}

.text-btn {
  background: transparent;
  color: var(--ink-soft);
  min-height: 40px;
  padding: 0 8px;
}

.topbar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: oklch(0.98 0.01 80 / 0.9);
}

.brand {
  color: var(--cinnabar);
  text-decoration: none;
  font-size: 1.1rem;
}

.progress {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
  justify-content: center;
}

.progress li {
  font-size: 0.78rem;
  padding: 4px 8px;
  border: 1px solid transparent;
  color: var(--ink-soft);
}

.progress .is-now {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

.progress .is-done {
  color: var(--jade);
}

.topbar-tools {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.game-shell {
  display: grid;
  grid-template-columns: 7.5rem 1fr 9.5rem;
  min-height: calc(100dvh - 58px);
}

.stamp-rail,
.org-rail {
  padding: var(--space-md);
  border-color: var(--line);
  border-style: solid;
  border-width: 0;
}

.stamp-rail {
  border-right-width: 1px;
}

.org-rail {
  border-left-width: 1px;
}

.rail-label {
  margin: 0 0 8px;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.stamp-list,
.org-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.stamp,
.org {
  padding: 8px;
  border: 1px dashed var(--line);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.stamp.is-on,
.org.is-on {
  border-style: solid;
  border-color: var(--cinnabar);
  color: var(--ink);
  background: oklch(0.97 0.02 70);
}

.org {
  display: grid;
  gap: 2px;
}

.org span {
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.stage {
  padding: clamp(20px, 4vw, 48px);
  max-width: 46rem;
  margin: 0 auto;
}

.stage h2 {
  margin: 8px 0 16px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
}

.scene-actions {
  display: grid;
  gap: 10px;
  margin-top: var(--space-lg);
}

.npc-diagram {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.npc-diagram li {
  padding: 12px;
  background: oklch(0.96 0.02 70);
  font-family: var(--font-story);
}

.npc-diagram small {
  display: block;
  color: var(--cinnabar);
  letter-spacing: 0.16em;
}

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: min(22rem, calc(100vw - 32px));
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--cinnabar);
  box-shadow: 0 16px 40px oklch(0.4 0.05 32 / 0.16);
  z-index: 20;
}

.toast-kicker {
  margin: 0 0 4px;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--cinnabar);
}

.toast h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
}

.panel {
  position: fixed;
  inset: 0;
  background: oklch(0.2 0.04 32 / 0.45);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 30;
}

.panel-sheet {
  width: min(36rem, 100%);
  max-height: 90dvh;
  overflow: auto;
  padding: 28px;
  background: var(--surface);
}

.panel-sheet--wide {
  width: min(52rem, 100%);
}

.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 12px;
  margin: 16px 0 24px;
}

.album-card {
  padding: 12px;
  border: 1px dashed var(--line);
  min-height: 8rem;
}

.album-card.is-on {
  border-style: solid;
  border-color: var(--jade);
}

.album-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
}

.album-card p,
.toast p {
  margin: 0 0 8px;
  font-family: var(--font-story);
  line-height: 1.65;
  color: var(--ink-soft);
}

@media (max-width: 900px) {
  .game-shell {
    grid-template-columns: 1fr;
  }

  .stamp-rail,
  .org-rail {
    border-width: 0;
    border-bottom: 1px solid var(--line);
  }

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

  .intro-realms {
    grid-template-columns: 1fr;
  }
}