/* ============================================================
   The Mythos Concordance — eldritch archival scholar aesthetic
   Dark parchment + ink, cosmic teal accent, refined typography.
   ============================================================ */

:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl:  clamp(2.5rem, 1rem + 4vw, 5rem);

  /* Spacing */
  --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; --space-24: 6rem;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Fonts */
  --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;

  /* Transitions */
  --t-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --t-med:  280ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- DARK (default — eldritch parchment-in-shadow) ---------- */
:root,
[data-theme="dark"] {
  /* Surfaces — deep ink with green-black undertone */
  --color-bg:           #0b0f10;
  --color-surface:      #11171a;
  --color-surface-2:    #161e22;
  --color-surface-3:    #1c262b;
  --color-border:       #2a363b;
  --color-border-soft:  #1f2a2f;

  /* Text — aged parchment ink on dark */
  --color-text:         #e6e0cf;     /* primary, warm bone */
  --color-text-muted:   #a39a83;
  --color-text-faint:   #6e6b5e;

  /* Accents — cosmic teal-green */
  --color-primary:      #4fb5a8;
  --color-primary-hover:#7bd0c4;
  --color-primary-dim:  #2a6b66;
  --color-primary-glow: rgba(79, 181, 168, 0.18);

  /* Secondary tints */
  --color-rust:         #b1734a;     /* warning/accent — old leather */
  --color-blood:        #8a3b3b;     /* sparingly used */

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 6px 18px rgba(0,0,0,0.45);
  --shadow-lg: 0 18px 40px rgba(0,0,0,0.55);

  --parchment-noise: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' seed='3'/><feColorMatrix values='0 0 0 0 0.9  0 0 0 0 0.85  0 0 0 0 0.75  0 0 0 0.05 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/></svg>");
}

/* ---------- LIGHT (aged parchment, ink) ---------- */
[data-theme="light"] {
  --color-bg:           #ece4d2;
  --color-surface:      #f1ead9;
  --color-surface-2:    #e6dec7;
  --color-surface-3:    #ddd2b6;
  --color-border:       #c4b893;
  --color-border-soft:  #d4c9a7;

  --color-text:         #20211c;
  --color-text-muted:   #5a5949;
  --color-text-faint:   #8b8773;

  --color-primary:      #0e5e5a;
  --color-primary-hover:#0a4441;
  --color-primary-dim:  #97b6b1;
  --color-primary-glow: rgba(14, 94, 90, 0.12);

  --color-rust:         #8a4516;
  --color-blood:        #6f2424;

  --shadow-sm: 0 1px 2px rgba(60,40,10,0.08);
  --shadow-md: 0 6px 18px rgba(60,40,10,0.10);
  --shadow-lg: 0 18px 40px rgba(60,40,10,0.14);

  --parchment-noise: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' seed='5'/><feColorMatrix values='0 0 0 0 0.2  0 0 0 0 0.15  0 0 0 0 0.05  0 0 0 0.08 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.7'/></svg>");
}

/* ---------- Base reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(1200px 600px at 90% -20%, var(--color-primary-glow), transparent 70%),
    radial-gradient(900px 600px at -10% 110%, var(--color-primary-glow), transparent 70%),
    var(--parchment-noise);
  background-attachment: fixed, fixed, fixed;
}
img, svg { display: block; max-width: 100%; }
button { background: none; border: none; cursor: pointer; font: inherit; color: inherit; }
input, select, textarea, button { font-family: inherit; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; text-underline-offset: 3px; }
ul, ol { list-style: none; }

::selection { background: var(--color-primary); color: #0b0f10; }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 3px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: -1000px; top: 8px;
  background: var(--color-primary); color: #0b0f10; padding: 8px 12px; border-radius: 4px; z-index: 1000;
}
.skip:focus { left: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-3) clamp(var(--space-4), 4vw, var(--space-10));
  background: color-mix(in oklab, var(--color-bg) 86%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-border-soft);
}
.brand-link {
  display: inline-flex; align-items: center; gap: var(--space-3);
  color: var(--color-text);
}
.brand-link:hover { color: var(--color-text); text-decoration: none; }
.brand-mark {
  width: 36px; height: 36px;
  color: var(--color-primary);
  transition: transform var(--t-med), color var(--t-fast);
}
.brand-link:hover .brand-mark { transform: rotate(8deg); color: var(--color-primary-hover); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.01em;
}
.brand-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}
@media (max-width: 640px) { .brand-sub { display: none; } }

.site-nav { display: flex; align-items: center; gap: clamp(var(--space-3), 2vw, var(--space-6)); }
.site-nav a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.site-nav a:hover { color: var(--color-text); text-decoration: none; }
@media (max-width: 540px) { .site-nav a { display: none; } }

.theme-toggle {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-soft);
}
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(var(--space-16), 10vw, var(--space-24)) clamp(var(--space-4), 5vw, var(--space-10)) var(--space-12);
  display: grid; grid-template-columns: 1.4fr 1fr; align-items: center; gap: var(--space-10);
  max-width: 1320px; margin: 0 auto;
}
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-3xl);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.hero-line { display: block; }
.hero-line.accent {
  font-style: italic;
  color: var(--color-primary);
}
.lede {
  margin-top: var(--space-6);
  max-width: 56ch;
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.65;
}
.lede a { color: var(--color-primary); border-bottom: 1px dotted var(--color-primary-dim); }
.lede a:hover { text-decoration: none; }

.hero-meta {
  display: flex; gap: var(--space-8); margin-top: var(--space-8);
  border-top: 1px solid var(--color-border-soft);
  padding-top: var(--space-6);
}
.hero-meta > div { display: flex; flex-direction: column; gap: var(--space-1); }
.hero-meta .num {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  color: var(--color-text);
}
.hero-meta span:last-child {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-faint);
}

.hero-ornament {
  color: var(--color-primary);
  opacity: 0.7;
  width: 100%;
}
.hero-ornament svg { width: 100%; height: auto; }
@media (max-width: 900px) { .hero-ornament { max-width: 320px; margin: 0 auto; } }

/* ---------- Controls ---------- */
.controls {
  position: sticky; top: 64px; z-index: 30;
  margin: 0 auto; max-width: 1320px;
  padding: var(--space-5) clamp(var(--space-4), 5vw, var(--space-10));
  background: color-mix(in oklab, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
}
.controls-row {
  display: grid;
  grid-template-columns: minmax(220px, 2fr) repeat(3, minmax(140px, 1fr)) auto;
  gap: var(--space-3);
  align-items: end;
}
@media (max-width: 880px) {
  .controls-row { grid-template-columns: 1fr 1fr; }
  .ctrl-search { grid-column: 1 / -1; }
  .reset-btn { grid-column: 1 / -1; justify-self: end; }
}
@media (max-width: 520px) {
  .controls-row { grid-template-columns: 1fr; }
  .reset-btn { justify-self: stretch; justify-content: center; }
}
@media (max-width: 880px) {
  /* Don't stick the controls on smaller screens — they take too much vertical space */
  .controls { position: static; }
}
/* Prevent horizontal overflow from any wide content (but allow inner scroll containers) */
html, body { overflow-x: clip; }
.ctrl select, .ctrl input { min-width: 0; width: 100%; }
.ctrl { display: flex; flex-direction: column; gap: 4px; }
.ctrl-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-faint);
  font-family: var(--font-mono);
}
.ctrl input,
.ctrl select {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.55rem 0.75rem;
  font-size: 0.95rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}
.ctrl input::placeholder { color: var(--color-text-faint); }
.ctrl input:hover,
.ctrl select:hover { border-color: var(--color-primary-dim); }
.ctrl input:focus,
.ctrl select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}
.ctrl select {
  appearance: none;
  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-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2rem;
  cursor: pointer;
}

.reset-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
  height: fit-content;
}
.reset-btn:hover { color: var(--color-primary); border-color: var(--color-primary); }

.result-count {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-faint);
  letter-spacing: 0.08em;
}
.result-count #count, .result-count #total { color: var(--color-text); }

/* ---------- Sections ---------- */
.section-header {
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--space-16) clamp(var(--space-4), 5vw, var(--space-10)) var(--space-6);
}
.section-header h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-xl);
  letter-spacing: -0.01em;
}
.section-header h2::before {
  content: "";
  display: inline-block; vertical-align: middle;
  width: 32px; height: 1px; margin-right: 12px;
  background: var(--color-primary);
}
.section-sub {
  margin-top: var(--space-3);
  max-width: 64ch;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- Cards (timeline) ---------- */
.cards {
  position: relative;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-4), 5vw, var(--space-10)) var(--space-12);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 380px), 1fr));
  gap: var(--space-5);
}

.card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-med), background var(--t-fast);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(600px 200px at 100% -50%, var(--color-primary-glow), transparent 60%);
  opacity: 0;
  transition: opacity var(--t-med);
  pointer-events: none;
}
.card:hover {
  border-color: var(--color-primary-dim);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card:hover::before { opacity: 1; }

.card.dim { opacity: 0.4; }

.card-top {
  display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-3);
}
.card-dates {
  display: flex; flex-direction: column;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  line-height: 1.5;
  text-align: right;
  white-space: nowrap;
}
.card-dates b { color: var(--color-primary); font-weight: 500; }
.card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.card-venue {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-style: italic;
}
.card-summary {
  font-size: 0.93rem;
  line-height: 1.6;
  color: var(--color-text);
  max-width: none;
}

.card-meta {
  display: flex; flex-direction: column; gap: var(--space-2);
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border-soft);
}
.meta-row {
  display: flex; gap: var(--space-2); flex-wrap: wrap; align-items: baseline;
}
.meta-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-faint);
  min-width: 78px;
}
.tag {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  font-size: 0.74rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}
.tag.entity {
  border-color: var(--color-primary-dim);
  color: var(--color-primary);
}
.tag.entity:hover, .tag.entity.active {
  background: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
}
.tag.theme:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
}
.tag.plain { cursor: default; }
.tag.plain:hover { background: transparent; border-color: var(--color-border); color: var(--color-text-muted); }

.card-foot {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--color-border-soft);
  gap: var(--space-3);
}
.card-foot .note {
  font-size: 0.78rem;
  color: var(--color-text-faint);
  font-style: italic;
  max-width: 32ch;
}
.card-source {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--color-primary);
  white-space: nowrap;
}
.card-source:hover { color: var(--color-primary-hover); }

.empty {
  text-align: center;
  padding: var(--space-12);
  color: var(--color-text-muted);
}
.link-btn {
  color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px;
  font: inherit; padding: 0; background: none; border: none;
}
.link-btn:hover { color: var(--color-primary-hover); }

/* ---------- Entities section ---------- */
.entities-section { background: linear-gradient(to bottom, transparent, var(--color-surface-2) 30%, transparent); }
.entity-chips {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-4), 5vw, var(--space-10)) var(--space-6);
  display: flex; flex-wrap: wrap; gap: var(--space-2);
}
.entity-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  transition: all var(--t-fast);
}
.entity-chip .count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-faint);
}
.entity-chip:hover, .entity-chip.active {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-glow);
}
.entity-chip:hover .count, .entity-chip.active .count { color: var(--color-primary); }

.network {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-4), 5vw, var(--space-10)) var(--space-16);
}
.network svg {
  width: 100%; height: auto; aspect-ratio: 1000 / 620;
  background: var(--color-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
}
@media (max-width: 720px) {
  .network { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .network svg { width: 900px; max-width: none; height: auto; aspect-ratio: 1000 / 620; }
  .network-caption::after { content: " Swipe horizontally to explore."; color: var(--color-primary); }
}
.network-caption {
  margin-top: var(--space-3);
  font-size: 0.78rem;
  color: var(--color-text-faint);
  text-align: center;
  font-style: italic;
}
.net-link {
  stroke: var(--color-text-faint);
  stroke-opacity: 0.25;
  transition: stroke-opacity var(--t-fast), stroke var(--t-fast);
}
.net-link.active { stroke: var(--color-primary); stroke-opacity: 0.9; }
.net-entity circle { fill: var(--color-primary-dim); stroke: var(--color-primary); stroke-width: 1.4; transition: fill var(--t-fast); }
.net-entity:hover circle, .net-entity.active circle { fill: var(--color-primary); }
.net-entity text { fill: var(--color-text); font-family: var(--font-body); font-size: 12px; }
.net-story circle { fill: var(--color-surface-3); stroke: var(--color-border); stroke-width: 1; transition: fill var(--t-fast), stroke var(--t-fast); }
.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-family: var(--font-body); font-size: 11px; }
.net-entity, .net-story { cursor: pointer; }
.net-entity.faded, .net-story.faded, .net-link.faded { opacity: 0.12; }

/* ---------- About ---------- */
.about-grid {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-4), 5vw, var(--space-10)) var(--space-20);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-10);
}
.about-grid h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
  margin-top: var(--space-4);
}
.about-grid h3:first-child { margin-top: 0; }
.about-grid p, .about-grid li {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-3);
  max-width: 64ch;
}
.about-grid ul { padding-left: 0; }
.about-grid li {
  position: relative;
  padding-left: 18px;
}
.about-grid li::before {
  content: "✦";
  position: absolute; left: 0; top: 0;
  color: var(--color-primary);
  font-size: 0.7rem;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border-soft);
  padding: var(--space-8) clamp(var(--space-4), 5vw, var(--space-10));
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-faint);
}

/* ---------- Entry animation ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.card { animation: fadeUp 320ms cubic-bezier(0.16, 1, 0.3, 1) both; }

/* ---------- Print-friendliness ---------- */
@media print {
  .site-header, .controls, .site-footer { display: none; }
  .card { break-inside: avoid; box-shadow: none; border-color: #999; }
}