:root {
  color-scheme: dark;
  --font-body: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --font-ui: "Avenir Next", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --bg: #0b1216;
  --bg-deep: #071014;
  --surface: rgba(20, 31, 36, 0.88);
  --surface-strong: #17262c;
  --surface-soft: rgba(255, 255, 255, 0.055);
  --ink: #f1ede4;
  --ink-soft: #c9c8be;
  --muted: #89989b;
  --line: rgba(226, 216, 196, 0.16);
  --line-strong: rgba(226, 216, 196, 0.3);
  --accent: #e3ae68;
  --accent-bright: #ffd18b;
  --accent-cool: #79caca;
  --danger: #df8174;
  --body-size: 18px;
  --body-line: 1.95;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

:root[data-theme="paper"] {
  color-scheme: light;
  --bg: #e7dfd0;
  --bg-deep: #dcd0be;
  --surface: rgba(249, 244, 234, 0.86);
  --surface-strong: #f8f1e4;
  --surface-soft: rgba(95, 66, 37, 0.065);
  --ink: #352c24;
  --ink-soft: #5e5549;
  --muted: #887d6d;
  --line: rgba(74, 50, 28, 0.16);
  --line-strong: rgba(74, 50, 28, 0.28);
  --accent: #a36a34;
  --accent-bright: #7a451f;
  --accent-cool: #377b7b;
  --danger: #a34f48;
  --shadow: 0 24px 80px rgba(91, 65, 32, 0.13);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f7f4;
  --bg-deep: #e8eeea;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-strong: #ffffff;
  --surface-soft: rgba(14, 61, 63, 0.055);
  --ink: #1a2a2c;
  --ink-soft: #45595c;
  --muted: #718486;
  --line: rgba(20, 56, 58, 0.14);
  --line-strong: rgba(20, 56, 58, 0.26);
  --accent: #a96136;
  --accent-bright: #88441f;
  --accent-cool: #267d80;
  --danger: #ad554d;
  --shadow: 0 24px 80px rgba(33, 72, 70, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 12%, color-mix(in srgb, var(--accent-cool) 12%, transparent), transparent 30rem),
    radial-gradient(circle at 88% 8%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 27rem),
    linear-gradient(145deg, var(--bg-deep), var(--bg));
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  content: "";
  background-image: linear-gradient(115deg, transparent 0 49%, rgba(255, 255, 255, 0.025) 50%, transparent 51%);
  background-size: 18px 18px;
  mix-blend-mode: overlay;
}

button,
input,
select {
  font: inherit;
}

button,
a,
select,
input[type="range"] {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  color: var(--bg-deep);
  background: var(--accent-bright);
  border-radius: 999px;
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 72px;
  padding: 0.85rem clamp(1rem, 4vw, 3.5rem);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.15rem;
  height: 2.15rem;
  place-items: center;
  color: var(--bg-deep);
  background: linear-gradient(145deg, var(--accent-bright), var(--accent));
  border-radius: 50%;
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 12%, transparent);
  font-size: 1.18rem;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: var(--font-body);
  font-size: 0.98rem;
  letter-spacing: 0.08em;
}

.brand small {
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.52rem;
  letter-spacing: 0.22em;
}

.topbar-actions {
  display: flex;
  gap: 0.35rem;
}

.topbar-button,
.icon-button,
.close-button {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.55rem 0.7rem;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.topbar-button:hover,
.icon-button:hover,
.close-button:hover {
  color: var(--ink);
  background: var(--surface-soft);
  border-color: var(--line);
  transform: translateY(-1px);
}

.topbar-label {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

#app {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 3.5rem) 0 5rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent-cool);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1.4;
  text-transform: uppercase;
}

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

.library-intro {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.52fr);
  gap: clamp(1.4rem, 6vw, 5.5rem);
  align-items: end;
  min-height: 18rem;
  padding: clamp(1.5rem, 5vw, 4rem) clamp(1.2rem, 4vw, 3.25rem);
  overflow: hidden;
  background:
    linear-gradient(120deg, color-mix(in srgb, var(--surface-strong) 92%, transparent), color-mix(in srgb, var(--surface) 68%, transparent)),
    radial-gradient(circle at 72% 20%, color-mix(in srgb, var(--accent) 17%, transparent), transparent 16rem);
  border: 1px solid var(--line);
  border-radius: 1.8rem;
  box-shadow: var(--shadow);
}

.library-intro h1,
.story-hero h1 {
  max-width: 11ch;
  margin: 0.55rem 0 0.85rem;
  font-family: var(--font-body);
  font-size: clamp(2.35rem, 7vw, 5.4rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.library-intro p,
.story-hero p {
  max-width: 42rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(0.9rem, 1.8vw, 1.08rem);
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.library-intro > *,
.story-hero > *,
.story-layout > *,
.reader-page,
.reader-card,
.reader-body {
  min-width: 0;
}

.intro-orbit {
  position: relative;
  display: grid;
  min-height: 13rem;
  place-items: center;
  isolation: isolate;
}

.intro-orbit::before,
.intro-orbit::after {
  position: absolute;
  content: "";
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 50%;
  transform: rotate(-27deg);
}

.intro-orbit::before {
  width: 11rem;
  height: 4.6rem;
}

.intro-orbit::after {
  width: 14rem;
  height: 6.8rem;
  transform: rotate(35deg);
}

.orbit-core {
  position: relative;
  z-index: 1;
  display: grid;
  width: 7rem;
  height: 7rem;
  place-items: center;
  color: var(--bg-deep);
  background: radial-gradient(circle at 32% 28%, #fff1bc 0 7%, var(--accent-bright) 30%, var(--accent) 64%, #925d35 100%);
  border-radius: 50%;
  box-shadow: 0 0 4rem color-mix(in srgb, var(--accent) 38%, transparent), 0 1rem 3rem rgba(0, 0, 0, 0.22);
  font-family: var(--font-body);
  font-size: 2rem;
}

.search-bar {
  display: flex;
  gap: 0.65rem;
  align-items: center;
  margin: clamp(1.25rem, 4vw, 2.4rem) 0 1rem;
  padding: 0.35rem 1rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.search-bar span {
  color: var(--accent);
  font-size: 1.05rem;
}

.search-bar input {
  width: 100%;
  min-width: 0;
  padding: 0.65rem 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  outline: 0;
}

.search-bar input::placeholder {
  color: var(--muted);
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 2.2rem 0 0.9rem;
}

.section-heading h2 {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 500;
}

.section-heading span {
  color: var(--muted);
  font-size: 0.75rem;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 1rem;
}

.story-card {
  position: relative;
  display: flex;
  min-height: 19rem;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.35rem;
  overflow: hidden;
  text-align: left;
  color: var(--ink);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--card-accent, var(--accent-cool)) 13%, var(--surface-strong)), var(--surface)),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  cursor: pointer;
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.1);
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.story-card::after {
  position: absolute;
  right: -2.5rem;
  bottom: -3.4rem;
  width: 10rem;
  height: 10rem;
  content: "";
  border: 1px solid color-mix(in srgb, var(--card-accent, var(--accent)) 38%, transparent);
  border-radius: 50%;
  opacity: 0.45;
}

.story-card:hover {
  border-color: color-mix(in srgb, var(--card-accent, var(--accent)) 62%, var(--line-strong));
  box-shadow: 0 22px 56px rgba(0, 0, 0, 0.17);
  transform: translateY(-4px);
}

.card-topline,
.card-meta,
.story-card-footer,
.story-card-title,
.chapter-card-main,
.chapter-card-footer,
.reader-topline,
.reader-actions,
.scene-nav,
.dialog-head,
.dialog-actions {
  position: relative;
  z-index: 1;
}

.card-topline,
.reader-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.card-status {
  padding: 0.34rem 0.58rem;
  color: var(--accent-bright);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.card-number {
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.86rem;
}

.story-card-title {
  margin-top: 2.5rem;
}

.story-card-title h3 {
  margin: 0 0 0.55rem;
  font-family: var(--font-body);
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.story-card-title p {
  min-height: 3.1em;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.65;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
  margin-top: 1.2rem;
  color: var(--muted);
  font-size: 0.72rem;
}

.story-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.35rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}

.story-card-footer span {
  color: var(--accent-bright);
  font-size: 0.78rem;
  font-weight: 700;
}

.arrow {
  color: var(--accent-bright);
  font-size: 1.35rem;
  transition: transform 160ms ease;
}

.story-card:hover .arrow {
  transform: translateX(4px);
}

.empty-state {
  padding: 2rem 1.25rem;
  color: var(--muted);
  text-align: center;
  background: var(--surface-soft);
  border: 1px dashed var(--line-strong);
  border-radius: 1rem;
}

.maintenance-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  max-width: 50rem;
  margin: 3.25rem 0 0;
  padding: 1rem 1.1rem;
  color: var(--ink-soft);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 1rem;
  font-size: 0.82rem;
  line-height: 1.75;
}

.maintenance-note strong {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--ink);
}

.maintenance-note code {
  padding: 0.1rem 0.3rem;
  color: var(--accent-bright);
  background: var(--surface);
  border-radius: 0.3rem;
  font-size: 0.78em;
}

.story-hero {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.65fr);
  gap: clamp(1.5rem, 6vw, 5rem);
  align-items: end;
  padding: clamp(1.4rem, 5vw, 3.5rem) clamp(1.2rem, 4vw, 3rem);
  background:
    linear-gradient(125deg, color-mix(in srgb, var(--surface-strong) 95%, transparent), color-mix(in srgb, var(--surface) 66%, transparent)),
    radial-gradient(circle at 82% 18%, color-mix(in srgb, var(--accent-cool) 15%, transparent), transparent 20rem);
  border: 1px solid var(--line);
  border-radius: 1.8rem;
  box-shadow: var(--shadow);
}

.story-hero h1 {
  max-width: 12ch;
  font-size: clamp(2.5rem, 8vw, 6.4rem);
}

.story-hero .hero-kicker {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 1.25rem;
  color: var(--ink-soft);
  font-size: 0.77rem;
}

.hero-kicker::before {
  width: 2rem;
  height: 1px;
  content: "";
  background: var(--accent);
}

.hero-aside {
  padding: 1.1rem;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.hero-aside h2 {
  margin: 0 0 0.55rem;
  color: var(--accent-bright);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.hero-aside p {
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.75;
}

.story-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.55rem;
  margin: 1rem 0 0;
}

.stat {
  padding: 0.85rem 0.65rem;
  text-align: center;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
}

.stat strong,
.stat span {
  display: block;
}

.stat strong {
  color: var(--accent-bright);
  font-family: var(--font-body);
  font-size: 1.22rem;
  font-weight: 500;
}

.stat span {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.65rem;
}

.story-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(230px, 0.65fr);
  gap: 1rem;
  align-items: start;
  margin-top: 1rem;
}

.story-tabs {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  margin: 1rem 0 0;
  padding: 0.3rem;
  overflow-x: auto;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
}

.story-tab {
  flex: 0 0 auto;
  min-height: 2.45rem;
  padding: 0.55rem 0.8rem;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 0.6rem;
  cursor: pointer;
  font-size: 0.75rem;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

.story-tab:hover,
.story-tab.is-active {
  color: var(--ink);
  background: var(--surface-strong);
  border-color: var(--line);
}

.story-tab.is-active {
  color: var(--accent-bright);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.panel {
  padding: clamp(1rem, 3vw, 1.4rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.15rem;
}

.panel h2,
.panel h3 {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 500;
}

.panel h2 {
  font-size: 1.4rem;
}

.panel h3 {
  color: var(--accent-bright);
  font-size: 1.1rem;
}

.panel-intro {
  margin: 0.55rem 0 1rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.7;
}

.chapter-list,
.search-results,
.character-list {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.chapter-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: center;
  width: 100%;
  padding: 0.9rem;
  text-align: left;
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid transparent;
  border-radius: 0.9rem;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.chapter-card:hover {
  background: color-mix(in srgb, var(--accent) 9%, var(--surface-soft));
  border-color: var(--line-strong);
  transform: translateX(3px);
}

.chapter-index {
  display: grid;
  width: 2.65rem;
  height: 2.65rem;
  place-items: center;
  color: var(--accent-bright);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 27%, transparent);
  border-radius: 0.7rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
}

.chapter-card-main strong,
.chapter-card-main span {
  display: block;
}

.chapter-card-main strong {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
}

.chapter-card-main span {
  margin-top: 0.35rem;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chapter-card-footer {
  text-align: right;
}

.chapter-card-footer strong,
.chapter-card-footer span {
  display: block;
}

.chapter-card-footer strong {
  color: var(--accent-bright);
  font-size: 0.76rem;
}

.chapter-card-footer span {
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.64rem;
}

.character-list {
  margin-top: 0.9rem;
}

.character-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
}

.character-list li:last-child {
  border-bottom: 0;
}

.character-list strong,
.character-list span {
  display: block;
}

.character-list strong {
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 500;
}

.character-list span {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.55;
}

.story-notes {
  margin-top: 1rem;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.9;
}

.story-notes p {
  margin: 0 0 0.8rem;
}

.story-notes p:last-child {
  margin-bottom: 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-bottom: 1.1rem;
  color: var(--muted);
  font-size: 0.73rem;
}

.breadcrumb button {
  padding: 0;
  color: var(--accent-bright);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.chapter-hero {
  padding: clamp(1.25rem, 4vw, 2.3rem);
  background: linear-gradient(135deg, var(--surface-strong), var(--surface));
  border: 1px solid var(--line);
  border-radius: 1.35rem;
}

.chapter-hero h1 {
  max-width: 18ch;
  margin: 0.55rem 0;
  font-family: var(--font-body);
  font-size: clamp(1.75rem, 5vw, 3.3rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.chapter-hero p {
  max-width: 54rem;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.85;
}

.material-hero {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--surface-strong) 95%, transparent), color-mix(in srgb, var(--surface) 72%, transparent)),
    radial-gradient(circle at 78% 20%, color-mix(in srgb, var(--accent-cool) 18%, transparent), transparent 17rem);
}

.chapter-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin-top: 1.05rem;
  color: var(--muted);
  font-size: 0.72rem;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 0.8rem;
  margin-top: 1rem;
}

.material-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 205px), 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}

.material-card {
  display: block;
  padding: 0;
  overflow: hidden;
  text-align: left;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1rem;
  cursor: pointer;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.material-card:hover {
  border-color: color-mix(in srgb, var(--accent-cool) 55%, var(--line));
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18);
  transform: translateY(-3px);
}

.material-image-frame {
  display: block;
  overflow: hidden;
  background: #0b1216;
}

.material-image-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  transition: transform 320ms ease;
}

.material-card:hover .material-image-frame img {
  transform: scale(1.025);
}

.material-caption {
  display: block;
  padding: 0.85rem 0.9rem 0.95rem;
}

.material-caption strong,
.material-caption span,
.material-caption small {
  display: block;
}

.material-caption strong {
  font-family: var(--font-body);
  font-size: 1.08rem;
  font-weight: 500;
}

.material-caption span {
  min-height: 2.8em;
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.5;
}

.material-caption small {
  margin-top: 0.65rem;
  color: var(--accent-bright);
  font-size: 0.64rem;
}

.scene-card {
  display: flex;
  min-height: 8.6rem;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.1rem;
  text-align: left;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1rem;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.scene-card:hover {
  background: color-mix(in srgb, var(--accent-cool) 7%, var(--surface));
  border-color: color-mix(in srgb, var(--accent-cool) 46%, var(--line));
  transform: translateY(-3px);
}

.scene-card small,
.scene-card-footer {
  color: var(--muted);
  font-size: 0.68rem;
}

.scene-card h2 {
  margin: 0.8rem 0;
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.45;
}

.scene-card-footer {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
}

.reader-page {
  width: min(800px, 100%);
  margin: 0 auto;
}

.reader-toolbar {
  position: sticky;
  z-index: 5;
  top: 72px;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin: -0.5rem 0 1.25rem;
  padding: 0.55rem 0;
  background: color-mix(in srgb, var(--bg) 87%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.reader-topline {
  min-width: 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.reader-topline > span:first-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reader-topline strong {
  color: var(--accent-bright);
  font-family: var(--font-body);
  font-weight: 500;
}

.reader-actions {
  display: flex;
  gap: 0.3rem;
}

.icon-button {
  min-width: 2.15rem;
  padding: 0.45rem;
  border-color: var(--line);
}

.progress-track {
  height: 3px;
  overflow: hidden;
  margin-top: 0.5rem;
  background: var(--surface-soft);
  border-radius: 999px;
}

.progress-track span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-cool), var(--accent));
  border-radius: inherit;
}

.reader-card {
  padding: clamp(1.15rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: 1.45rem;
  box-shadow: var(--shadow);
}

.reader-heading {
  margin-bottom: clamp(2rem, 6vw, 4.2rem);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.reader-heading h1 {
  max-width: 18ch;
  margin: 0.65rem 0 0;
  font-family: var(--font-body);
  font-size: clamp(1.9rem, 6vw, 3.8rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.reader-heading p {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.75rem;
}

.reader-body {
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--body-size);
  line-height: var(--body-line);
}

.reader-divider {
  margin: 2rem 0;
  color: var(--accent);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  letter-spacing: 0.65em;
  text-align: center;
}

.text-block {
  margin: 0 0 1.35em;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.text-block.narration {
  color: var(--ink);
}

.text-block.dialogue {
  position: relative;
  margin: 1.8em 0 1.45em;
  padding: 0.2rem 0 0.2rem 1.15rem;
  border-left: 2px solid color-mix(in srgb, var(--accent) 72%, transparent);
}

.text-block.monologue {
  color: color-mix(in srgb, var(--accent-bright) 68%, var(--ink));
  font-style: italic;
}

.speaker {
  display: block;
  margin-bottom: 0.24rem;
  color: var(--accent-bright);
  font-family: var(--font-ui);
  font-size: 0.67em;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.stage-note {
  display: none;
  grid-template-columns: auto 1fr;
  gap: 0.55rem;
  align-items: baseline;
  margin: 1.25rem 0;
  padding: 0.7rem 0.8rem;
  color: var(--muted);
  background: var(--surface-soft);
  border: 1px dashed var(--line);
  border-radius: 0.65rem;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  line-height: 1.6;
}

.show-cues .stage-note {
  display: grid;
}

.stage-note .cue-tag {
  color: var(--accent-cool);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.system-block {
  margin: 1.5rem 0;
  padding: 0.95rem 1rem;
  overflow-x: auto;
  color: var(--accent-cool);
  background: color-mix(in srgb, var(--bg-deep) 70%, #051c22);
  border: 1px solid color-mix(in srgb, var(--accent-cool) 28%, var(--line));
  border-radius: 0.7rem;
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.71rem;
  line-height: 1.65;
  white-space: pre-wrap;
}

.section-break {
  margin: 2.8rem 0 1rem;
  color: var(--accent-bright);
  font-family: var(--font-ui);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-align: center;
}

.section-break::before,
.section-break::after {
  display: inline-block;
  width: 2rem;
  height: 1px;
  margin: 0 0.6rem 0.28em;
  content: "";
  background: var(--line-strong);
}

.choice-block {
  margin: 1.3rem 0;
  padding: 0.95rem 1rem;
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface-soft));
  border: 1px solid color-mix(in srgb, var(--accent) 32%, var(--line));
  border-radius: 0.8rem;
  font-family: var(--font-ui);
  font-size: 0.82em;
  line-height: 1.75;
  white-space: pre-wrap;
}

.choice-block strong {
  color: var(--accent-bright);
}

.reader-bottom {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.6rem;
  align-items: center;
  margin-top: 1.1rem;
}

.reader-bottom .button:last-child {
  justify-self: end;
}

.button {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding: 0.65rem 0.95rem;
  color: var(--bg-deep);
  background: var(--accent-bright);
  border: 1px solid transparent;
  border-radius: 0.7rem;
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  transition: filter 160ms ease, transform 160ms ease, background 160ms ease;
}

.button:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.button-quiet {
  color: var(--ink-soft);
  background: var(--surface-soft);
  border-color: var(--line);
}

.button-quiet:hover {
  background: var(--surface-strong);
}

.scene-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin-top: 2.5rem;
}

.scene-nav-button {
  min-height: 4.25rem;
  padding: 0.75rem 0.85rem;
  text-align: left;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  cursor: pointer;
  transition: border-color 160ms ease, transform 160ms ease;
}

.scene-nav-button:last-child {
  text-align: right;
}

.scene-nav-button:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.scene-nav-button small,
.scene-nav-button strong {
  display: block;
}

.scene-nav-button small {
  color: var(--muted);
  font-size: 0.63rem;
}

.scene-nav-button strong {
  margin-top: 0.35rem;
  overflow: hidden;
  color: var(--accent-bright);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 2.25rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.68rem;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease;
}

.site-footer a:hover {
  color: var(--accent-bright);
}

.settings-dialog {
  width: min(92vw, 460px);
  padding: 0;
  color: var(--ink);
  background: var(--surface-strong);
  border: 1px solid var(--line-strong);
  border-radius: 1.25rem;
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.4);
}

.image-dialog {
  width: min(94vw, 760px);
  max-height: 94vh;
  padding: 0;
  color: var(--ink);
  background: var(--surface-strong);
  border: 1px solid var(--line-strong);
  border-radius: 1.25rem;
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.48);
}

.image-dialog::backdrop {
  background: rgba(2, 9, 12, 0.78);
  backdrop-filter: blur(7px);
}

.image-dialog-form {
  max-height: 94vh;
  padding: 1.1rem;
  overflow: auto;
}

.image-dialog-image {
  display: block;
  width: 100%;
  max-height: 74vh;
  margin-top: 1rem;
  object-fit: contain;
  background: #071014;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
}

.image-dialog-caption {
  margin: 0.8rem 0 0;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.86rem;
  line-height: 1.7;
}

.settings-dialog::backdrop {
  background: rgba(2, 9, 12, 0.7);
  backdrop-filter: blur(6px);
}

.settings-form {
  padding: 1.25rem;
}

.dialog-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.dialog-head h2 {
  margin: 0.45rem 0 0;
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 500;
}

.close-button {
  min-width: 2.25rem;
  padding: 0.25rem;
  border-color: var(--line);
  font-size: 1.3rem;
  line-height: 1;
}

.setting-row {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.15rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.setting-row span {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.setting-row output {
  color: var(--accent-bright);
}

.setting-row select {
  width: 100%;
  padding: 0.65rem 0.7rem;
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 0.6rem;
}

.setting-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.setting-check {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  align-items: start;
  margin-top: 1.35rem;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.setting-check input {
  width: 1rem;
  height: 1rem;
  margin-top: 0.15rem;
  accent-color: var(--accent);
}

.setting-check strong,
.setting-check small {
  display: block;
}

.setting-check small {
  margin-top: 0.25rem;
  color: var(--muted);
  line-height: 1.55;
}

.dialog-actions {
  display: flex;
  justify-content: end;
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.error-card {
  padding: 1.5rem;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid color-mix(in srgb, var(--danger) 55%, var(--line));
  border-radius: 1rem;
}

.error-card h1 {
  margin: 0 0 0.6rem;
  color: var(--danger);
  font-family: var(--font-body);
  font-size: 1.6rem;
  font-weight: 500;
}

.error-card p {
  margin: 0;
  line-height: 1.75;
}

@media (max-width: 760px) {
  .topbar {
    min-height: 64px;
  }

  .topbar-label {
    display: none;
  }

  .library-intro,
  .story-hero,
  .story-layout {
    grid-template-columns: 1fr;
  }

  .library-intro {
    min-height: 0;
  }

  .intro-orbit {
    min-height: 8rem;
    margin-top: -1rem;
  }

  .intro-orbit::before {
    width: 10rem;
    height: 3.9rem;
  }

  .intro-orbit::after {
    width: 12.5rem;
    height: 5.5rem;
  }

  .orbit-core {
    width: 5.5rem;
    height: 5.5rem;
    font-size: 1.5rem;
  }

  .hero-aside {
    margin-top: 0.5rem;
  }

  .story-layout {
    margin-top: 0.8rem;
  }

  .reader-toolbar {
    top: 64px;
  }
}

@media (max-width: 520px) {
  #app {
    width: min(100% - 1rem, 1180px);
    padding-top: 0.7rem;
  }

  .library-intro,
  .story-hero {
    border-radius: 1.25rem;
  }

  .library-intro h1,
  .story-hero h1 {
    font-size: clamp(2.45rem, 15vw, 4rem);
  }

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

  .material-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
  }

  .material-caption {
    padding: 0.7rem 0.65rem 0.75rem;
  }

  .material-caption strong {
    font-size: 0.95rem;
  }

  .material-caption span {
    font-size: 0.64rem;
  }

  .chapter-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .chapter-card-footer {
    display: none;
  }

  .reader-card {
    padding: 1.05rem 0.95rem;
    border-radius: 1.05rem;
  }

  .reader-body {
    font-size: var(--body-size);
  }

  .reader-bottom {
    grid-template-columns: 1fr 1fr;
  }

  .reader-bottom .button:nth-child(2) {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .reader-bottom .button:last-child {
    justify-self: stretch;
  }

  .reader-bottom .button:first-child {
    justify-self: stretch;
  }

  .site-footer {
    flex-direction: column;
    gap: 0.45rem;
  }
}

@media (max-width: 360px) {
  .material-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;
    animation-iteration-count: 1 !important;
  }
}