/* ═══════════════════════════════════════════════════════════════
   Our Shared Gifts — Shared Stylesheet
   Recognition Infrastructure · oursharedgifts.org
   ═══════════════════════════════════════════════════════════════ */

/* ─── FONTS ─── */
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── ROOT VARIABLES ─── */
:root {
  /* Warm palette */
  --warm-black: #1a1a1a;
  --warm-dark: #2c2c2c;
  --warm-gray: #6b6b6b;
  --warm-light: #9a9a9a;
  --wood-warm: #8b7355;
  --cream-light: #faf8f5;
  --cream-dark: #f2efe9;
  --white: #ffffff;

  /* Teal accents */
  --teal-primary: #2a9d8f;
  --teal-dark: #1f7a6e;
  --teal-border: rgba(42,157,143,0.2);
  --teal-faint: rgba(42,157,143,0.08);
  --border-accent: rgba(42,157,143,0.3);

  /* Vertex colors */
  --v-differentiation: #c0392b;
  --v-connection: #2980b9;
  --v-boundaries: #d4a017;
  --v-architecture: #27ae60;

  /* Typography scale */
  --text-xs: 0.7rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.05rem;
  --text-lg: 1.2rem;
  --text-xl: 1.5rem;
  --text-2xl: 1.8rem;
  --text-3xl: 2.2rem;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 80px;

  /* Layout */
  --content-width: 720px;
  --max-width: 1080px;
  --border-radius: 6px;
}

/* ─── RESET & BASE ─── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  font-family: 'EB Garamond', Georgia, 'Times New Roman', serif;
  color: var(--warm-dark);
  background: var(--cream-light);
  line-height: 1.7;
}

::selection {
  background: var(--teal-primary);
  color: var(--white);
}

/* ─── TEXTURE LAYERS ─── */
.texture-layer {
  position: relative;
}

.texture-earth {
  background: var(--cream-light);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(42,157,143,0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139,115,85,0.04) 0%, transparent 40%);
}

/* ─── LINKS ─── */
a {
  color: var(--teal-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.2s;
}
a:hover { color: var(--teal-dark); }

/* ─── CONTAINER ─── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── HEADER ─── */
header {
  border-bottom: 1px solid var(--teal-border);
  padding: var(--space-lg) 0 var(--space-md);
}

header .container {
  display: flex;
  flex-direction: column;
}

header h1 {
  font-size: var(--text-xl);
  font-weight: 500;
  margin-bottom: 2px;
}

header h1 a {
  color: var(--warm-black);
  text-decoration: none;
}
header h1 a:hover { color: var(--teal-primary); }

header > .container > p {
  font-size: var(--text-sm);
  color: var(--warm-light);
  font-style: italic;
  margin-bottom: var(--space-md);
}

/* ─── NAVIGATION ─── */
nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

nav ul li a {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--warm-gray);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 3px;
  transition: color 0.2s, background 0.2s;
}

nav ul li a:hover,
nav ul li a.active {
  color: var(--teal-primary);
  background: var(--teal-faint);
}

/* Dropdowns */
.dropdown { position: relative; }

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--teal-border);
  border-radius: var(--border-radius);
  padding: var(--space-sm) 0;
  min-width: 200px;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.dropdown:hover .dropdown-content { display: block; }

.dropdown-content a {
  display: block;
  padding: 6px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--warm-gray);
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
}

.dropdown-content a:hover,
.dropdown-content a.active {
  color: var(--teal-primary);
  background: var(--teal-faint);
}

/* ─── SHARED COMPONENT CLASSES ─── */

/* Phase label — small teal uppercase marker */
.phase-label,
.label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--teal-primary);
  margin-bottom: var(--space-sm);
}

/* Lead paragraph */
.lead {
  font-size: var(--text-lg);
  color: var(--warm-dark);
  line-height: 1.65;
}

/* Structural note — teal-bordered aside */
.structural-note {
  background: var(--cream-dark);
  border-left: 3px solid var(--teal-primary);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
  font-size: var(--text-sm);
  color: var(--warm-gray);
}
.structural-note strong { color: var(--teal-dark); }

/* Mono class */
.mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Gift note */
.gift-note {
  max-width: var(--content-width);
  margin: var(--space-xl) auto var(--space-2xl);
  padding: var(--space-lg);
  background: var(--teal-faint);
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  color: var(--warm-gray);
  font-style: italic;
  text-align: center;
}
.gift-note a { color: var(--teal-primary); }

/* Source/citation blocks */
.sources,
.source-list {
  max-width: var(--content-width);
  margin: var(--space-lg) auto;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--teal-border);
}

.source,
.source-item {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  color: var(--warm-light);
  margin-bottom: var(--space-sm);
}

/* Blockquotes */
blockquote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 3px solid var(--teal-border);
  font-style: italic;
  color: var(--warm-gray);
}

blockquote cite {
  display: block;
  margin-top: var(--space-sm);
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  color: var(--warm-light);
  font-style: normal;
}

/* ─── VERTEX SYSTEM ─── */

/* Vertex tags (small colored pills) */
.vertex-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  padding: 3px 8px;
  border-radius: 3px;
  color: var(--white);
}
.vertex-tag.strong { opacity: 1; }
.vertex-tag.developing { opacity: 0.5; }

/* Vertex cards */
.vertex-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.vertex-card,
.v-card {
  background: var(--white);
  border: 1px solid var(--teal-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
}

.v-diff, .q-diff { border-left: 3px solid var(--v-differentiation); }
.v-conn, .q-conn { border-left: 3px solid var(--v-connection); }
.v-bound, .q-bound { border-left: 3px solid var(--v-boundaries); }
.v-arch, .q-arch { border-left: 3px solid var(--v-architecture); }

.v-label,
.q-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

/* Vertex dot indicator */
.vertex-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: var(--space-xs);
}

/* ─── STATUS ELEMENTS ─── */

.status-banner {
  max-width: var(--content-width);
  margin: 0 auto var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  background: var(--teal-faint);
  border: 1px solid var(--teal-border);
  border-radius: var(--border-radius);
}

.status-block {
  background: var(--teal-faint);
  border: 1px solid var(--teal-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.status-label,
.s-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal-primary);
  margin-bottom: var(--space-sm);
}

/* ─── CARDS & GRIDS ─── */

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

/* Multi-column layout helpers */
.cols-2 { columns: 2; column-gap: var(--space-lg); }
.cols-3 { columns: 3; column-gap: var(--space-lg); }

/* ─── BUTTONS ─── */
.btn {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 12px 24px;
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: all 0.2s;
  background: var(--teal-primary);
  color: var(--white);
}
.btn:hover {
  background: var(--teal-dark);
  color: var(--white);
}
.btn-secondary {
  background: transparent;
  color: var(--teal-primary);
  border: 1px solid var(--teal-border);
}
.btn-secondary:hover {
  background: var(--teal-faint);
  color: var(--teal-dark);
}

/* ─── SPECS GRID ─── */
.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.spec-item {
  padding: var(--space-md);
  background: var(--white);
  border: 1px solid var(--teal-border);
  border-radius: var(--border-radius);
}

.spec-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--warm-light);
  margin-bottom: 4px;
}

.spec-value {
  font-size: var(--text-lg);
  color: var(--warm-black);
  font-weight: 500;
}

.spec-note {
  font-size: var(--text-sm);
  color: var(--warm-gray);
  margin-top: 4px;
}

/* ─── TABLES ─── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
  font-size: var(--text-sm);
}

th {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--warm-light);
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  border-bottom: 2px solid var(--teal-border);
}

td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--cream-dark);
  color: var(--warm-dark);
}

/* ─── EDGE PAIRS (Four Dynamics) ─── */
.edge-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-md) 0;
}

.edge {
  padding: var(--space-md);
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
}

.edge-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--warm-light);
  margin-bottom: var(--space-xs);
}

.edge-holds {
  background: rgba(42,157,143,0.06);
  border: 1px solid rgba(42,157,143,0.15);
}

.edge-breaks {
  background: rgba(192,57,43,0.04);
  border: 1px solid rgba(192,57,43,0.12);
}

/* ─── FOOTER ─── */
footer {
  border-top: 1px solid var(--teal-border);
  padding: var(--space-lg) 0;
  margin-top: var(--space-xl);
}

footer p {
  font-size: var(--text-sm);
  color: var(--warm-light);
  text-align: center;
  font-style: italic;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-xl);
}

.footer-section {
  flex: 1;
}

.footer-bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--teal-border);
  text-align: center;
}

/* ─── CONNECTIONS / BACK LINKS ─── */
.connections,
.back-links {
  max-width: var(--content-width);
  margin: var(--space-lg) auto;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--teal-border);
}

.connection-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.connection-list a {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 12px;
  border: 1px solid var(--teal-border);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--teal-primary);
  transition: all 0.15s;
}
.connection-list a:hover {
  background: var(--teal-faint);
}

/* ─── OPEN PROBLEMS ─── */
.open-problem {
  background: var(--cream-dark);
  border: 1px solid var(--teal-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  :root {
    --space-2xl: 48px;
    --text-3xl: 1.8rem;
    --text-2xl: 1.5rem;
  }

  .container { padding: 0 16px; }

  nav ul { flex-direction: column; gap: 2px; }

  .dropdown-content {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: var(--space-md);
    display: none;
  }

  .vertex-grid,
  .card-grid,
  .specs-grid,
  .edge-pair {
    grid-template-columns: 1fr;
  }

  .cols-2, .cols-3 { columns: 1; }

  .footer-content { flex-direction: column; }
}

/* ─── HAMBURGER MENU (injected by menu.js) ─── */
.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--warm-black);
  cursor: pointer;
  padding: var(--space-sm);
  line-height: 1;
  z-index: 1001;
}

.menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  z-index: 999;
}

@media (max-width: 768px) {
  .hamburger { display: block; }

  header .container {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  header > .container > p {
    display: none;
  }

  nav {
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background: var(--white);
    z-index: 1000;
    padding: var(--space-xl) var(--space-lg);
    overflow-y: auto;
    transition: right 0.3s ease;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
  }

  nav.open { right: 0; }

  nav ul {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .dropdown-content {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: var(--space-xs) 0 var(--space-xs) var(--space-md);
    min-width: 0;
  }

  .dropdown.open .dropdown-content { display: block; }
}

/* ─── PRINT ─── */
@media print {
  header, footer, nav, .hamburger, .menu-overlay { display: none; }
  body { background: white; color: black; font-size: 12pt; }
  .container { max-width: 100%; padding: 0; }
  a { color: black; text-decoration: underline; }
  a::after { content: " (" attr(href) ")"; font-size: 0.8em; }
}