/* ============================================================
   The King Shelf
   Dark paperback catalog interface with red, amber, and paper tones.
   ============================================================ */

:root {
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 3rem;

  --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;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;

  --font-display: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --t-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --t-med: 260ms cubic-bezier(0.16, 1, 0.3, 1);
}

:root,
[data-theme="dark"] {
  --color-bg: #120d0d;
  --color-surface: #1a1313;
  --color-surface-2: #211717;
  --color-surface-3: #2c1d1c;
  --color-border: #4b2b2b;
  --color-border-soft: #342121;

  --color-text: #f1e5d2;
  --color-text-muted: #c4ad91;
  --color-text-faint: #8a7462;

  --color-primary: #d54545;
  --color-primary-hover: #ff6a60;
  --color-primary-dim: #7a2d2d;
  --color-primary-glow: rgba(213, 69, 69, 0.18);

  --color-rust: #c58b3a;
  --color-blood: #a7192a;
  --color-shadow: rgba(0, 0, 0, 0.45);

  --noise: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' seed='8'/><feColorMatrix values='0 0 0 0 0.9 0 0 0 0 0.82 0 0 0 0 0.66 0 0 0 0.045 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.7'/></svg>");
}

[data-theme="light"] {
  --color-bg: #f2ead8;
  --color-surface: #fbf4e7;
  --color-surface-2: #eadcc5;
  --color-surface-3: #dcc7a8;
  --color-border: #b99873;
  --color-border-soft: #d4bea0;

  --color-text: #241b18;
  --color-text-muted: #5f4a3f;
  --color-text-faint: #8b705e;

  --color-primary: #a7192a;
  --color-primary-hover: #76101d;
  --color-primary-dim: #dfaaa1;
  --color-primary-glow: rgba(167, 25, 42, 0.12);

  --color-rust: #925f19;
  --color-blood: #7c1421;
  --color-shadow: rgba(92, 57, 28, 0.16);

  --noise: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' seed='11'/><feColorMatrix values='0 0 0 0 0.35 0 0 0 0 0.22 0 0 0 0 0.12 0 0 0 0.055 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.7'/></svg>");
}

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

html {
  min-width: 320px;
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

[data-theme="light"] {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100dvh;
  overflow-x: hidden;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-text);
  background:
    linear-gradient(135deg, rgba(213, 69, 69, 0.09), transparent 34%),
    radial-gradient(1000px 520px at 92% 0%, var(--color-primary-glow), transparent 62%),
    radial-gradient(800px 500px at 4% 100%, rgba(197, 139, 58, 0.13), transparent 66%),
    var(--noise),
    var(--color-bg);
  background-attachment: fixed;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

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

ol,
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

::selection {
  background: var(--color-primary);
  color: #120d0d;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  top: 10px;
  left: -999px;
  z-index: 1000;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #120d0d;
}

.skip:focus {
  left: 10px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 68px;
  padding: var(--space-3) clamp(var(--space-4), 4vw, var(--space-10));
  border-bottom: 1px solid var(--color-border-soft);
  background: rgba(18, 13, 13, 0.9);
  backdrop-filter: blur(14px) saturate(130%);
}

[data-theme="light"] .site-header {
  background: rgba(242, 234, 216, 0.9);
}

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

.brand-link:hover {
  color: var(--color-text);
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  background: linear-gradient(145deg, var(--color-surface-3), var(--color-surface));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.brand-mark svg {
  width: 24px;
  height: 24px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.12;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

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

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

.site-nav a,
.theme-toggle {
  min-height: 38px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  border: 1px solid var(--color-border-soft);
  background: var(--color-surface);
}

.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.catalog-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(320px, 1.18fr);
  gap: clamp(var(--space-6), 5vw, var(--space-12));
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: clamp(var(--space-8), 7vw, var(--space-16)) clamp(var(--space-4), 5vw, var(--space-10)) var(--space-8);
  align-items: stretch;
}

.catalog-intro > *,
.workbench > * {
  min-width: 0;
}

.intro-copy {
  align-self: center;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
  overflow-wrap: break-word;
}

h1 {
  max-width: 12ch;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 7rem);
  font-weight: 600;
  line-height: 0.92;
  color: var(--color-text);
}

.title-main,
.title-sub {
  display: block;
}

.title-sub {
  margin-top: 0.08em;
  color: var(--color-text-muted);
  font-size: 0.58em;
  line-height: 1;
}

.lede {
  max-width: 58ch;
  margin-top: var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  min-width: 0;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.hero-meta > div {
  min-width: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, var(--color-surface-2), rgba(0, 0, 0, 0.08));
}

.hero-meta .num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1;
}

.hero-meta span:last-child {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
}

.intro-art {
  position: relative;
  min-width: 0;
  min-height: 420px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: 0 24px 70px var(--color-shadow);
}

.intro-art::before,
.intro-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.intro-art::before {
  background:
    linear-gradient(90deg, rgba(18, 13, 13, 0.18), transparent 42%),
    radial-gradient(500px 280px at 82% 20%, rgba(213, 69, 69, 0.28), transparent 62%);
  mix-blend-mode: screen;
}

.intro-art::after {
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: inherit;
}

.intro-art img {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: inherit;
  object-fit: cover;
}

.workbench {
  display: grid;
  grid-template-columns: minmax(270px, 340px) minmax(0, 1fr);
  gap: var(--space-6);
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 0 clamp(var(--space-4), 5vw, var(--space-10)) var(--space-12);
  align-items: start;
}

.controls {
  position: sticky;
  top: 88px;
  display: grid;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, var(--color-surface-2), var(--color-surface)),
    var(--noise);
  box-shadow: 0 14px 42px var(--color-shadow);
}

.panel-heading h2,
.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1;
}

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

.ctrl-label {
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
}

.ctrl input,
.ctrl select {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}

.ctrl input::placeholder {
  color: var(--color-text-faint);
}

.ctrl select {
  appearance: none;
  padding-right: 2.25rem;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
    linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) calc(50% - 2px),
    calc(100% - 13px) calc(50% - 2px);
  background-repeat: no-repeat;
  background-size: 5px 5px;
}

.ctrl input:hover,
.ctrl select:hover,
.ctrl input:focus,
.ctrl select:focus {
  border-color: var(--color-primary);
}

.ctrl input:focus,
.ctrl select:focus {
  outline: 0;
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.reset-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--color-primary-dim);
  border-radius: var(--radius-md);
  color: var(--color-text);
  background: var(--color-primary-glow);
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.reset-btn:hover {
  color: var(--color-primary-hover);
  border-color: var(--color-primary);
  background: rgba(213, 69, 69, 0.1);
}

.source-strip {
  display: grid;
  gap: var(--space-1);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}

.source-strip span {
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.timeline-section {
  min-width: 0;
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.result-count {
  flex: 0 0 auto;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  background: var(--color-surface);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.result-count span {
  color: var(--color-text);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr));
  gap: var(--space-4);
}

.card {
  position: relative;
  display: grid;
  gap: var(--space-4);
  min-height: 100%;
  overflow: hidden;
  padding: var(--space-5);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(90deg, var(--color-primary-dim) 0 5px, transparent 5px),
    linear-gradient(180deg, var(--color-surface), var(--color-surface-2));
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.18);
  transition: transform var(--t-fast), border-color var(--t-fast), box-shadow var(--t-med);
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary-dim);
  box-shadow: 0 18px 42px var(--color-shadow);
}

.card-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: start;
}

.card-title {
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.05;
}

.card-venue {
  margin-top: var(--space-1);
  color: var(--color-rust);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
}

.card-dates {
  display: grid;
  gap: var(--space-1);
  min-width: 86px;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-align: right;
  text-transform: uppercase;
}

.card-dates b {
  color: var(--color-primary);
  font-weight: 500;
}

.card-summary {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.card-meta {
  display: grid;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-soft);
}

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

.meta-label {
  flex: 0 0 74px;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  max-width: 100%;
  padding: 2px 8px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-muted);
  background: transparent;
  font-size: var(--text-xs);
  overflow-wrap: anywhere;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.tag.entity {
  color: var(--color-primary);
  border-color: var(--color-primary-dim);
}

.tag.entity:hover,
.tag.entity.active {
  color: var(--color-primary-hover);
  border-color: var(--color-primary);
  background: var(--color-primary-glow);
}

.tag.theme:hover {
  color: var(--color-text);
  border-color: var(--color-rust);
}

.tag.plain {
  cursor: default;
}

.card-foot {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border-soft);
}

.note {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  font-style: italic;
}

.card-source {
  flex: 0 0 auto;
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
}

.empty {
  margin: var(--space-8) 0;
  padding: var(--space-8);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  text-align: center;
}

.link-btn {
  padding: 0;
  color: var(--color-primary);
  background: none;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.thread-board,
.about-section {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 0 clamp(var(--space-4), 5vw, var(--space-10)) var(--space-12);
}

.thread-board {
  border-top: 1px solid var(--color-border-soft);
  padding-top: var(--space-10);
}

.entity-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.entity-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 34px;
  max-width: 100%;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-muted);
  background: var(--color-surface);
  font-size: var(--text-sm);
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.entity-chip .count {
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.entity-chip:hover,
.entity-chip.active {
  color: var(--color-primary-hover);
  border-color: var(--color-primary);
  background: var(--color-primary-glow);
}

.network {
  margin: 0;
  max-width: 100%;
  max-height: 760px;
  overflow: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, var(--color-surface), var(--color-surface-2)),
    var(--noise);
}

.network svg {
  width: 100%;
  min-width: 980px;
  height: auto;
}

.net-link {
  stroke: var(--color-text-faint);
  stroke-opacity: 0.22;
  transition: stroke var(--t-fast), stroke-opacity var(--t-fast), opacity var(--t-fast);
}

.net-link.active {
  stroke: var(--color-primary);
  stroke-opacity: 0.85;
}

.net-entity,
.net-story {
  cursor: pointer;
}

.net-entity circle {
  fill: var(--color-primary-dim);
  stroke: var(--color-primary);
  stroke-width: 1.4;
}

.net-entity:hover circle,
.net-entity.active circle {
  fill: var(--color-primary);
}

.net-entity text,
.net-story text {
  font-family: var(--font-body);
}

.net-entity text {
  fill: var(--color-text);
  font-size: 12px;
}

.net-story circle {
  fill: var(--color-surface-3);
  stroke: var(--color-border);
  stroke-width: 1;
}

.net-story:hover circle,
.net-story.active circle {
  fill: var(--color-text);
  stroke: var(--color-primary);
}

.net-story text {
  fill: var(--color-text-muted);
  font-size: 11px;
}

.net-entity.faded,
.net-story.faded,
.net-link.faded {
  opacity: 0.12;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.about-grid > div {
  padding: var(--space-5);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.about-grid h3 {
  margin-bottom: var(--space-2);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.about-grid p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.site-footer {
  padding: var(--space-8) clamp(var(--space-4), 5vw, var(--space-10));
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-text-faint);
  font-size: var(--text-sm);
  text-align: center;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  animation: fadeUp 260ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

@media (max-width: 1080px) {
  .catalog-intro {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 13ch;
  }

  .intro-art {
    min-height: 340px;
  }

  .workbench {
    grid-template-columns: 1fr;
  }

  .controls {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .panel-heading,
  .ctrl-search,
  .reset-btn,
  .source-strip {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
  }

  .brand-sub,
  .site-nav a {
    display: none;
  }

  .catalog-intro {
    padding-top: var(--space-8);
  }

  .lede {
    width: min(100%, 29ch);
    max-width: 29ch;
    font-size: var(--text-base);
  }

  .intro-art,
  .controls {
    width: min(100%, calc(100vw - 48px));
  }

  .hero-meta,
  .controls,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .intro-art {
    min-height: 260px;
  }

  .section-header {
    align-items: start;
    flex-direction: column;
  }

  .card-top {
    grid-template-columns: 1fr;
  }

  .card-dates {
    grid-template-columns: repeat(2, max-content);
    text-align: left;
  }

  .meta-label {
    flex-basis: 100%;
  }

  .card-foot {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .brand-mark {
    display: none;
  }

  h1 {
    font-size: 3rem;
  }

  .intro-art {
    min-height: 220px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .controls,
  .site-footer,
  .intro-art,
  .network {
    display: none;
  }

  body {
    color: #111;
    background: #fff;
  }

  .workbench,
  .catalog-intro,
  .about-grid {
    display: block;
  }

  .card {
    break-inside: avoid;
    border-color: #999;
    box-shadow: none;
  }
}