:root {
  --page-bg: linear-gradient(180deg, #f3ebdc 0%, #efe5d4 38%, #eadfce 100%);
  --page-glow-a: rgba(201, 131, 71, 0.18);
  --page-glow-b: rgba(126, 84, 46, 0.14);
  --paper: rgba(255, 251, 244, 0.94);
  --paper-strong: #fffaf1;
  --ink: #2b1f16;
  --ink-soft: #5f4d3d;
  --line: rgba(74, 50, 31, 0.16);
  --accent: #9c4f2d;
  --accent-dark: #6f3317;
  --shadow: 0 18px 60px rgba(82, 53, 28, 0.14);
  --font-display: "Palatino Linotype", "Book Antiqua", "Iowan Old Style", "URW Palladio L", serif;
  --font-body: "Source Serif 4", "Georgia", "Times New Roman", serif;
  --reader-font-size: 18px;
  --reader-line-height: 1.72;
}

:root[data-theme="dark"] {
  --page-bg: linear-gradient(180deg, #07111f 0%, #0b1728 46%, #040812 100%);
  --page-glow-a: rgba(54, 99, 173, 0.16);
  --page-glow-b: rgba(24, 54, 104, 0.2);
  --paper: rgba(12, 20, 34, 0.94);
  --paper-strong: #10192b;
  --ink: #e7eefb;
  --ink-soft: #9eb4d4;
  --line: rgba(129, 159, 211, 0.18);
  --accent: #78a6ff;
  --accent-dark: #3569d4;
  --shadow: 0 22px 60px rgba(1, 5, 12, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, var(--page-glow-a), transparent 32%),
    radial-gradient(circle at top right, var(--page-glow-b), transparent 28%),
    var(--page-bg);
  font-family: var(--font-body);
  transition: background-color 180ms ease, color 180ms ease;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--accent) 48%, transparent);
}

button,
input {
  font: inherit;
}

.page-shell {
  width: min(1160px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.site-header {
  margin-bottom: 28px;
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.site-brand {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
}

.theme-toggle,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
}

.theme-toggle {
  cursor: pointer;
}

.button-primary {
  color: #f8fbff;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-color: transparent;
}

.button-disabled {
  opacity: 0.5;
  pointer-events: none;
}

.hero,
.work-hero,
.chapter-main,
.chapter-panel,
.reviews-panel,
.sidebar-card,
.works-list {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero,
.work-hero,
.chapter-panel,
.reviews-panel,
.sidebar-card,
.works-list {
  padding: 28px;
}

.hero h1,
.work-hero h1,
.chapter-header h1,
.sidebar-card h2,
.works-list h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  max-width: 12ch;
  margin-bottom: 12px;
}

.work-hero h1,
.chapter-header h1 {
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  margin-bottom: 12px;
}

.work-hero {
  display: grid;
  gap: 18px;
}

.work-hero-sheet {
  justify-items: start;
  padding: clamp(28px, 5vw, 52px);
}

.work-hero-sheet h1 {
  max-width: 20ch;
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 0.95;
}

.work-hero-subline {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.hero-tagline,
.chapter-meta,
.section-note {
  margin: 0;
  font-size: 1.02rem;
  color: var(--ink-soft);
}

.hero-mascot {
  display: block;
  width: min(100%, 540px);
  height: auto;
  margin-top: 20px;
  filter: drop-shadow(0 16px 28px rgba(0, 0, 0, 0.16));
}

.review-body {
  color: var(--ink-soft);
}

.home-layout,
.work-layout {
  display: grid;
  gap: 24px;
}

.section-heading {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.works-list-body {
  display: grid;
}

.work-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 156px;
  gap: 18px;
  align-items: center;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  transition: background-color 140ms ease;
}

.work-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.work-row:last-child {
  padding-bottom: 0;
}

.work-row:hover {
  background: color-mix(in srgb, var(--paper-strong) 45%, transparent);
}

.work-row-main {
  min-width: 0;
}

.work-row-main h2 {
  font-size: clamp(1.3rem, 2.3vw, 1.9rem);
}

.work-row-main h2 a,
.chapter-list a,
.chapter-nav a,
.chapter-toc a {
  text-decoration: none;
}

.work-row-meta,
.work-actions,
.chapter-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.work-row-meta {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.work-row-summary,
.work-hero-summary {
  margin: 10px 0 0;
  color: var(--ink-soft);
  line-height: 1.45;
}

.work-row-summary {
  font-size: 0.97rem;
  max-width: 44ch;
}

.work-hero-summary {
  font-size: 1.02rem;
  max-width: 40ch;
}

.work-actions {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.work-actions-sheet {
  flex-wrap: nowrap;
  gap: 14px;
}

.work-row-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: flex-end;
  padding-right: 10px;
}

.work-row-link {
  position: relative;
  color: var(--ink-soft);
  text-decoration: none;
}

.work-row-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 1px;
  background: color-mix(in srgb, var(--accent) 45%, transparent);
  opacity: 0;
  transform: scaleX(0.6);
  transition: opacity 140ms ease, transform 140ms ease;
}

.work-row-link:hover::after,
.work-row-link:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.work-row-link-primary {
  color: var(--ink);
  font-weight: 800;
  letter-spacing: 0.01em;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  min-width: 118px;
  padding: 0 18px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--paper-strong) 90%, transparent);
  border: 1px solid var(--line);
}

.work-row-link-primary::after {
  display: none;
}

.work-row-link-primary:hover,
.work-row-link-primary:focus-visible {
  background: color-mix(in srgb, var(--accent) 14%, var(--paper-strong));
  border-color: color-mix(in srgb, var(--accent) 38%, var(--line));
  color: var(--ink);
}

.chapter-list {
  margin: 20px 0 0;
  padding-left: 20px;
}

.chapter-list li,
.chapter-toc li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.chapter-list li:last-child,
.chapter-toc li:last-child {
  border-bottom: 0;
}

.placeholder,
.muted {
  color: var(--ink-soft);
}

.review-card {
  margin-top: 24px;
  padding-top: 0;
}

.review-card:first-of-type {
  margin-top: 0;
}

.review-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.6rem;
}

.review-meta {
  margin: 0 0 18px;
  color: var(--ink-soft);
}

.chapter-layout {
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.chapter-sidebar {
  position: sticky;
  top: 20px;
  display: grid;
  gap: 16px;
}

.page-chapter .sidebar-card {
  padding: 20px 22px;
  background: color-mix(in srgb, var(--paper) 72%, transparent);
  box-shadow: none;
}

.page-chapter .reader-controls,
.page-chapter .chapter-toc {
  background: color-mix(in srgb, var(--paper-strong) 56%, transparent);
}

.chapter-nav {
  display: grid;
  gap: 10px;
  font-size: 0.96rem;
}

.reader-controls {
  padding: 0;
  overflow: hidden;
}

.reader-controls-toggle {
  width: 100%;
  padding: 18px 20px 16px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.reader-controls-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
}

.reader-controls-state {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-soft);
  font-size: 0.85rem;
  white-space: nowrap;
}

.reader-controls-state::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform 160ms ease;
}

.reader-controls.is-open .reader-controls-state {
  color: var(--accent);
}

.reader-controls.is-open .reader-controls-state::after {
  transform: rotate(225deg) translateY(-1px);
}

.reader-controls-body {
  padding: 14px 20px 20px;
  border-top: 1px solid var(--line);
  display: none;
  gap: 18px;
}

.reader-controls.is-open .reader-controls-body {
  display: grid;
}

.reader-controls label {
  display: grid;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.reader-control-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.reader-control-heading strong {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
}

.reader-controls input {
  width: 100%;
}

.chapter-main {
  padding: 36px clamp(20px, 5vw, 56px);
}

.chapter-header {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.chapter-position {
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.chapter-body {
  padding-top: 28px;
  font-size: var(--reader-font-size);
  line-height: var(--reader-line-height);
}

.prose > :first-child {
  margin-top: 0;
}

.prose > :last-child {
  margin-bottom: 0;
}

.prose > ul,
.prose > ol {
  margin: 0 0 1.2em;
  padding-left: 1.25em;
}

.prose p,
.prose ul,
.prose ol,
.prose blockquote {
  margin: 0 0 1.05em;
}

.prose h1,
.prose h2,
.prose h3 {
  margin: 1.8em 0 0.6em;
  font-family: var(--font-display);
  line-height: 1.05;
}

.prose blockquote {
  margin-left: 0;
  padding: 14px 20px;
  border-left: 3px solid color-mix(in srgb, var(--accent) 62%, transparent);
  background: color-mix(in srgb, var(--paper-strong) 82%, transparent);
}

.prose hr {
  border: 0;
  height: 1px;
  margin: 2em 0;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 40%, transparent), transparent);
}

.prose em,
.prose strong {
  color: var(--ink);
}

.chapter-toc ol {
  margin: 0;
  padding-left: 18px;
}

.chapter-toc .is-current a {
  color: var(--accent);
  font-weight: 700;
}

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

  .chapter-sidebar {
    position: static;
  }

  .work-row {
    grid-template-columns: minmax(0, 1fr) 140px;
  }

  .work-row-actions {
    justify-content: flex-end;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100vw - 20px, 1160px);
    padding-top: 20px;
  }

  .site-header {
    align-items: stretch;
    flex-direction: column;
  }

  .hero,
  .work-hero,
  .chapter-panel,
  .reviews-panel,
  .sidebar-card,
  .works-list,
  .chapter-main {
    border-radius: 20px;
    padding: 20px;
  }

  .reader-controls {
    padding: 0;
  }

  .work-hero-sheet h1 {
    max-width: none;
    font-size: clamp(2.2rem, 11vw, 3.3rem);
  }

  .reader-controls-toggle,
  .reader-controls-body {
    padding-left: 18px;
    padding-right: 18px;
  }

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

  .reader-control-heading {
    align-items: baseline;
    flex-direction: column;
    gap: 4px;
  }

  .work-row-actions,
  .work-actions,
  .chapter-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .work-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .work-row-actions {
    padding-right: 0;
  }

  .work-actions-sheet {
    flex-direction: row;
    align-items: center;
  }

  .button,
  .theme-toggle {
    width: 100%;
  }

  .hero-mascot {
    width: min(100%, 450px);
  }

  .work-actions-sheet .button {
    width: auto;
    flex: 1 1 auto;
  }
}