:root {
  --color-bg: #0a1020;
  --color-bg-secondary: #111a31;
  --color-bg-tertiary: #172443;
  --color-surface: rgba(14, 23, 43, 0.82);
  --color-surface-strong: #13213f;
  --color-surface-hover: rgba(32, 52, 92, 0.86);
  --color-panel: rgba(9, 16, 32, 0.92);
  --color-primary: #6a7cff;
  --color-primary-light: #97a6ff;
  --color-secondary: #36d1b7;
  --color-accent: #ffb84f;
  --color-text: #edf3ff;
  --color-text-secondary: #a8b5d6;
  --color-text-muted: #7282a7;
  --color-border: rgba(150, 170, 220, 0.16);
  --color-border-strong: rgba(150, 170, 220, 0.28);
  --color-success: #3ed598;
  --color-danger: #ff7b7b;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.375rem;
  --text-5xl: 3.625rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 18px 48px rgba(0, 0, 0, 0.32);
  --shadow-lg: 0 28px 72px rgba(0, 0, 0, 0.42);
  --shadow-glow: 0 0 0 1px rgba(106, 124, 255, 0.18), 0 24px 60px rgba(54, 79, 160, 0.35);
  --shadow-glow-accent: 0 18px 40px rgba(255, 184, 79, 0.18);
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(106, 124, 255, 0.18), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(255, 184, 79, 0.12), transparent 22%),
    linear-gradient(180deg, #0c1325 0%, #08111f 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 85%);
  opacity: 0.35;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  max-width: 100%;
  height: auto;
}

main {
  position: relative;
  z-index: 1;
}

p,
ul,
ol,
blockquote {
  margin-top: 0;
}

.container,
.shell {
  width: min(100% - 40px, 1280px);
  margin: 0 auto;
}

.narrow-shell {
  width: min(100% - 40px, 820px);
  margin: 0 auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(7, 14, 27, 0.7);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(18px);
  z-index: 100;
}

.header-content {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(240px, 1fr) auto;
  align-items: center;
  gap: var(--space-6);
  min-height: var(--header-height);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary-light);
  filter: drop-shadow(0 0 16px rgba(106, 124, 255, 0.35));
}

.logo-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.logo-copy strong {
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo-copy span {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-search {
  width: 100%;
}

.search-box {
  position: relative;
}

.search-icon {
  position: absolute;
  top: 50%;
  left: var(--space-4);
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
  transform: translateY(-50%);
  pointer-events: none;
}

.header-search input {
  width: 100%;
  height: 46px;
  padding: 0 var(--space-4) 0 44px;
  color: var(--color-text);
  background: rgba(17, 28, 51, 0.88);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

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

.header-search input:focus {
  border-color: rgba(106, 124, 255, 0.65);
  box-shadow: 0 0 0 4px rgba(106, 124, 255, 0.16);
  background: rgba(18, 31, 58, 0.96);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.top-nav-link {
  padding: 10px 14px;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
  border: 1px solid transparent;
}

.top-nav-link:hover,
.top-nav-link.is-active {
  color: var(--color-text);
  background: rgba(106, 124, 255, 0.14);
  border-color: rgba(106, 124, 255, 0.18);
}

.hero,
.page-shell,
.page-hero,
.detail-hero {
  padding-top: calc(var(--header-height) + var(--space-10));
}

.hero {
  position: relative;
  padding-bottom: var(--space-20);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 220px;
  background: linear-gradient(180deg, transparent, rgba(6, 11, 22, 0.56));
  pointer-events: none;
}

.hero-layout,
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
  align-items: center;
  gap: var(--space-10);
}

.hero-copy,
.detail-copy {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-kicker {
  display: inline-block;
  margin: 0 0 var(--space-3);
  color: var(--color-primary-light);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-title,
.detail-copy h1,
.page-title,
.page-hero h1,
.simple-page h1 {
  margin: 0;
  font-size: clamp(2.75rem, 6vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-title,
.page-title,
.detail-copy h1 {
  background: linear-gradient(135deg, #ffffff, #c9d4ff 58%, #88d8ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text,
.page-subtitle,
.detail-subtitle,
.section-intro {
  max-width: 760px;
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
}

.hero-actions,
.detail-meta,
.hero-stats,
.meta-row,
.book-card-top,
.visual-summary-head,
.reader-toolbar,
.toolbar-pills,
.category-chips,
.compare-stats {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.btn,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  font-weight: 700;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

.btn:hover,
.button:hover {
  transform: translateY(-1px);
}

.btn-primary,
.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), #4e66ff);
  box-shadow: var(--shadow-glow);
}

.btn-secondary,
.button-secondary,
.button-tertiary,
.button-small,
.btn-ghost {
  color: var(--color-text);
  background: rgba(17, 28, 51, 0.88);
  border-color: var(--color-border);
}

.btn-secondary:hover,
.button-secondary:hover,
.button-tertiary:hover,
.button-small:hover,
.btn-ghost:hover {
  border-color: var(--color-border-strong);
  background: rgba(24, 39, 71, 0.96);
}

.btn-ghost {
  min-height: 38px;
  padding: 0 14px;
}

.hero-stats {
  margin-top: var(--space-8);
}

.stat,
.category-stat-card {
  display: grid;
  gap: 4px;
  min-width: 120px;
  padding: var(--space-4) var(--space-5);
  background: rgba(13, 22, 41, 0.72);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.stat-number,
.stat-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
}

.stat-label,
.stat-label-small,
.card-meta,
.results-info {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.stat-small {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  color: var(--color-text);
}

.stat-small.highlight {
  color: var(--color-accent);
}

.hero-panel,
.dashboard-card,
.sidebar-panel,
.module-hero-panel,
.category-hero-panel,
.detail-hero-panel,
.cta-panel,
.books-toolbar,
.compact-card,
.book-card,
.note-panel,
.quote-panel,
.chapter-card,
.reader-note {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}

.hero-panel,
.module-hero-panel,
.category-hero-panel,
.detail-hero-panel,
.cta-panel {
  overflow: hidden;
}

.hero-panel {
  padding: var(--space-5);
  position: relative;
}

.hero-panel::before,
.detail-hero-panel::before,
.module-hero-panel::before,
.category-hero-panel::before,
.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(106, 124, 255, 0.12), transparent 42%, rgba(255, 184, 79, 0.08));
  pointer-events: none;
}

.compare-container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-4);
  align-items: stretch;
}

.compare-side {
  min-height: 360px;
  padding: var(--space-5);
  background: rgba(9, 16, 30, 0.82);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-xl) - 4px);
}

.compare-header {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.compare-content {
  display: grid;
  gap: var(--space-5);
}

.compare-divider {
  display: grid;
  place-items: center;
}

.compare-divider span {
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: rgba(12, 20, 37, 0.94);
}

.book-page {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent),
    rgba(17, 27, 48, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.page-text {
  height: 12px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, rgba(168, 181, 214, 0.3), rgba(168, 181, 214, 0.08));
}

.page-text:nth-child(2) {
  width: 82%;
}

.page-text:nth-child(3) {
  width: 68%;
}

.rsvp-compact {
  display: grid;
  place-items: center;
  min-height: 180px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at center, rgba(106, 124, 255, 0.18), transparent 55%),
    rgba(12, 22, 41, 0.94);
  border: 1px solid rgba(106, 124, 255, 0.24);
}

.rsvp-word-compact {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--color-accent);
  text-shadow: 0 0 28px rgba(255, 184, 79, 0.24);
}

.section-block {
  padding: 0 0 var(--space-16);
}

.surface-section {
  position: relative;
}

.dark-band .container,
.surface-section .container,
.cta-panel {
  position: relative;
  z-index: 1;
}

.dark-band {
  position: relative;
}

.dark-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 16, 32, 0.18), rgba(17, 26, 49, 0.55));
  border-top: 1px solid rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.section-heading {
  margin-bottom: var(--space-8);
}

.section-heading h2,
.book-section h2,
.sidebar-panel h3,
.quote-panel p,
.note-panel h2,
.note-panel h3,
.chapter-card h3,
.compact-card h3,
.book-title {
  margin: 0 0 var(--space-2);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.section-heading h2,
.book-section h2,
.note-panel h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.section-heading.row-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.section-lead {
  margin: 0;
  color: var(--color-text);
  font-size: var(--text-xl);
}

.three-column {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.compact-grid,
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-4);
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.compact-card,
.book-card,
.content-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-height: 100%;
  padding: var(--space-5);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.compact-card:hover,
.book-card:hover,
.content-card:hover,
.sidebar-book:hover {
  transform: translateY(-3px);
  border-color: rgba(106, 124, 255, 0.35);
  box-shadow: var(--shadow-glow);
}

.book-card {
  overflow: hidden;
}

.book-cover {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: calc(var(--radius-xl) - 6px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent),
    linear-gradient(135deg, #132447, #0b1327);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.book-cover img,
.book-cover-image,
.sidebar-book-cover {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-info,
.summary-card-body {
  display: grid;
  gap: var(--space-3);
}

.books-grid-large,
.book-grid,
.summary-grid,
.entity-grid,
.content-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

.pill,
.meta-chip,
.category-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: fit-content;
  padding: 8px 12px;
  border-radius: var(--radius-full);
  background: rgba(106, 124, 255, 0.12);
  border: 1px solid rgba(106, 124, 255, 0.18);
  color: var(--color-primary-light);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.meta-chip {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.category-chip {
  background: rgba(17, 28, 51, 0.86);
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.category-chip.active {
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), #4e66ff);
  border-color: transparent;
}

.page-shell {
  padding-bottom: var(--space-16);
}

.page-header {
  margin-bottom: var(--space-8);
}

.page-header-centered {
  max-width: 860px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}

.page-toolbar {
  margin-bottom: var(--space-6);
}

.books-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
}

.category-hero-panel,
.module-hero-panel {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
  position: relative;
}

.category-info,
.module-hero-panel > div:first-child {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.breadcrumb a {
  color: var(--color-text-secondary);
}

.breadcrumb a:hover {
  color: var(--color-primary-light);
}

.detail-shell {
  padding-bottom: var(--space-20);
}

.detail-hero-panel {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) 280px;
  gap: var(--space-8);
  padding: var(--space-8);
  margin-bottom: var(--space-8);
  position: relative;
}

.detail-cover,
.detail-copy,
.detail-sidepanel {
  position: relative;
  z-index: 1;
}

.book-cover-shell {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    linear-gradient(160deg, rgba(106, 124, 255, 0.22), rgba(14, 23, 43, 0.36) 58%),
    linear-gradient(135deg, #132447, #0b1327);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.book-cover-image {
  width: 100%;
  height: 100%;
}

.detail-meta {
  margin: var(--space-4) 0 var(--space-6);
}

.detail-sidepanel {
  display: grid;
  gap: var(--space-4);
}

.dashboard-card {
  padding: var(--space-6);
}

.dashboard-card.compact {
  padding: var(--space-5);
}

.dashboard-card > *:last-child,
.note-panel > *:last-child,
.quote-panel > *:last-child,
.chapter-card > *:last-child,
.sidebar-panel > *:last-child,
.reader-note > *:last-child {
  margin-bottom: 0;
}

.book-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: var(--space-6);
  align-items: start;
}

.book-main {
  display: grid;
  gap: var(--space-5);
}

.book-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-5));
  display: grid;
  gap: var(--space-4);
}

.sidebar-panel {
  padding: var(--space-5);
}

.sidebar-panel h3 {
  font-size: var(--text-lg);
}

.sidebar-panel a,
.sidebar-book {
  display: block;
  padding: 10px 0;
  color: var(--color-text-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  transition: color var(--transition-fast);
}

.sidebar-panel a:first-of-type,
.sidebar-book:first-of-type {
  border-top: 0;
}

.sidebar-panel a:hover,
.sidebar-book:hover {
  color: var(--color-text);
}

.sidebar-book strong,
.sidebar-book span {
  display: block;
}

.sidebar-book span {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.sidebar-book {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: center;
}

.sidebar-book-cover {
  aspect-ratio: 3 / 4;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.04);
}

.sidebar-book-copy {
  min-width: 0;
}

.sidebar-book-copy strong {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.note-stack,
.quote-stack,
.stack-list,
.chapter-stack {
  display: grid;
  gap: var(--space-4);
}

.note-panel,
.chapter-card,
.quote-panel,
.stack-item,
.quote-card {
  padding: var(--space-5);
}

.stack-item,
.quote-card {
  background: rgba(17, 28, 51, 0.76);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.stack-item:hover,
.quote-card:hover {
  transform: translateY(-2px);
  border-color: rgba(106, 124, 255, 0.3);
  box-shadow: var(--shadow-sm);
}

.quote-panel p,
.quote-card blockquote {
  margin-bottom: var(--space-3);
  font-size: var(--text-lg);
  line-height: 1.65;
}

.quote-panel footer {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.chapter-card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.chapter-card-top a,
.text-link {
  color: var(--color-secondary);
  font-size: var(--text-sm);
  font-weight: 700;
}

.chapter-card-top a:hover,
.text-link:hover {
  color: #6df0d2;
}

.rich-copy {
  color: var(--color-text-secondary);
}

.rich-copy h3,
.rich-copy h4 {
  color: var(--color-text);
  margin: 0 0 var(--space-2);
}

.rich-copy p,
.rich-copy ul,
.rich-copy ol {
  margin-bottom: var(--space-3);
}

.rich-copy ul,
.rich-copy ol {
  padding-left: 1.4rem;
}

.visual-summary-block {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.visual-summary-head {
  justify-content: space-between;
}

.visual-summary-canvas {
  min-height: 340px;
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(106, 124, 255, 0.1), transparent 25%),
    linear-gradient(180deg, rgba(11, 18, 34, 0.96), rgba(8, 13, 24, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: auto;
}

.visual-summary-canvas.full-canvas {
  min-height: 70vh;
}

.visual-tree {
  min-width: min(880px, 100%);
}

.visual-node {
  position: relative;
  margin-top: var(--space-4);
  padding-left: var(--space-6);
}

.single-column {
  grid-template-columns: minmax(0, 1fr);
}

.top-spaced {
  margin-top: var(--space-6);
}

.table-wrap {
  overflow-x: auto;
}

.status-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.status-table th,
.status-table td {
  padding: 0.85rem 0.95rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.status-table th {
  color: var(--color-text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.73rem;
}

.visual-node::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 10px;
  width: 14px;
  height: 1px;
  background: rgba(106, 124, 255, 0.42);
}

.visual-node:first-child {
  margin-top: 0;
  padding-left: 0;
}

.visual-node:first-child::before {
  display: none;
}

.visual-node-header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-4);
  background: rgba(18, 28, 50, 0.92);
  border: 1px solid rgba(106, 124, 255, 0.16);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.24);
}

.visual-node-header strong {
  display: block;
  margin-bottom: 6px;
  font-size: var(--text-base);
  color: var(--color-text);
}

.visual-node-header p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.visual-node-header button,
.visual-node-header a {
  flex-shrink: 0;
  min-height: 34px;
  padding: 0 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: rgba(9, 16, 32, 0.88);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: 700;
}

.visual-node-header button:hover,
.visual-node-header a:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.visual-children {
  margin-top: var(--space-3);
  padding-left: var(--space-4);
  border-left: 1px solid rgba(106, 124, 255, 0.2);
}

.visual-node.is-collapsed > .visual-children {
  display: none;
}

.reader-shell {
  padding-bottom: var(--space-16);
}

.reader-hero-panel {
  margin-bottom: var(--space-6);
}

.reader-dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: var(--space-6);
  align-items: start;
}

.reader-content {
  overflow: hidden;
}

.reader-toolbar {
  justify-content: space-between;
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.reader-progress {
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.reader-prose {
  max-width: 780px;
  color: var(--color-text);
  font-size: 1.08rem;
  line-height: 1.95;
}

.reader-prose p {
  margin-bottom: var(--space-4);
}

.reader-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-5));
  display: grid;
  gap: var(--space-4);
}

.reader-note {
  padding: var(--space-4);
}

.cta-section {
  padding-bottom: var(--space-20);
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-8);
  position: relative;
}

.feature-card h3 {
  font-size: var(--text-xl);
}

.page-hero,
.simple-page {
  padding-bottom: var(--space-8);
}

.page-hero .shell,
.simple-page .shell,
.simple-page .narrow-shell {
  position: relative;
}

.page-hero + .section-block,
.simple-page + .section-block {
  padding-top: 0;
}

.about-page,
.legal-page {
  padding-top: calc(var(--header-height) + var(--space-10));
  padding-bottom: var(--space-16);
}

.about-content,
.legal-content {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}

.about-content h2,
.legal-content h2 {
  color: var(--color-primary-light);
}

.footer {
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(5, 10, 20, 0.72);
  backdrop-filter: blur(10px);
}

.footer-content {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) repeat(3, minmax(0, 0.6fr));
  gap: var(--space-8);
  align-items: start;
}

.footer-title {
  font-size: var(--text-2xl);
  font-weight: 800;
  margin-bottom: var(--space-3);
}

.footer-brand p,
.footer-bottom p,
.footer-column a {
  color: var(--color-text-secondary);
}

.footer-links {
  display: contents;
}

.footer-column {
  display: grid;
  gap: var(--space-2);
}

.footer-column h4 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.footer-column a:hover {
  color: var(--color-text);
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.page-home .header,
.page-books .header {
  background: rgba(7, 14, 27, 0.6);
}

@media (max-width: 1180px) {
  .header-content {
    grid-template-columns: minmax(220px, 1fr) minmax(220px, 1fr);
  }

  .header-search {
    display: none;
  }

  .hero-layout,
  .detail-hero-panel,
  .book-layout,
  .reader-dashboard,
  .footer-content,
  .three-column,
  .feature-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .detail-sidepanel,
  .book-sidebar,
  .reader-sidebar {
    position: static;
  }

  .books-grid-large,
  .book-grid,
  .summary-grid,
  .entity-grid,
  .content-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  body {
    background:
      radial-gradient(circle at top center, rgba(106, 124, 255, 0.16), transparent 30%),
      linear-gradient(180deg, #0c1325 0%, #08111f 100%);
  }

  .container,
  .shell,
  .narrow-shell {
    width: min(100% - 24px, 1280px);
  }

  .header {
    height: auto;
  }

  .header-content {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding: var(--space-3) 0;
  }

  .header-actions {
    justify-content: flex-start;
  }

  .top-nav {
    overflow-x: auto;
    flex-wrap: nowrap;
    width: 100%;
    padding-bottom: 2px;
  }

  .hero,
  .page-shell,
  .page-hero,
  .detail-hero,
  .about-page,
  .legal-page {
    padding-top: 132px;
  }

  .hero-title,
  .detail-copy h1,
  .page-title,
  .page-hero h1 {
    font-size: clamp(2.2rem, 10vw, 3.1rem);
  }

  .hero-text,
  .page-subtitle,
  .detail-subtitle,
  .section-intro {
    font-size: var(--text-base);
  }

  .books-grid-large,
  .book-grid,
  .summary-grid,
  .entity-grid,
  .content-grid,
  .compact-grid {
    grid-template-columns: 1fr;
  }

  .compare-container,
  .cta-panel,
  .category-hero-panel,
  .module-hero-panel {
    grid-template-columns: 1fr;
    display: grid;
  }

  .compare-divider {
    order: 2;
  }

  .compare-side {
    min-height: auto;
  }

  .detail-hero-panel,
  .hero-panel,
  .module-hero-panel,
  .category-hero-panel,
  .cta-panel,
  .dashboard-card,
  .sidebar-panel,
  .books-toolbar {
    padding: var(--space-5);
  }

  .hero-actions,
  .detail-meta,
  .toolbar-pills,
  .reader-toolbar,
  .section-heading.row-heading,
  .chapter-card-top {
    align-items: flex-start;
    flex-direction: column;
  }

  .reader-toolbar > span:empty {
    display: none;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}