/* Relaxed Memory Model Zoo — styles for index.html */

/* Light theme is the default. Add data-theme="dark" on <html> to switch. */
:root {
  --bg: #faf9f6;
  --bg2: #f1efe9;
  --bg3: #e5e2d9;
  --border: rgba(0,0,0,0.10);
  --border2: rgba(0,0,0,0.20);
  --text: #1d1c19;
  --text2: #5f5d56;
  --text3: #918f86;
  --accent-hw: #3B8BD4;
  --accent-hw-light: #1f5c99;
  --accent-hw-bg: rgba(59,139,212,0.14);
  --accent-lang: #1D9E75;
  --accent-lang-light: #137a56;
  --accent-lang-bg: rgba(29,158,117,0.14);
  --accent-formal: #7F77DD;
  --accent-formal-light: #524bb0;
  --accent-formal-bg: rgba(127,119,221,0.12);
  --edge-strict: #6f6e66;
  --edge-equiv: #bf7d12;
  --edge-compile: #18906a;
  --edge-incompat: #c1481f;
  --tier-label: #c6c3ba;
  --tier-line: rgba(0,0,0,0.05);
  --tag-amber: #9a660c;
  --tag-coral: #b14420;
  --tag-gray: #6b6a63;
  --tag-teal: #137a56;
  --radius: 8px;
  --font-mono: 'JetBrains Mono', 'Fira Mono', 'Courier New', monospace;
}
:root[data-theme="dark"] {
  --bg: #0d0d0f;
  --bg2: #141418;
  --bg3: #1c1c22;
  --border: rgba(255,255,255,0.08);
  --border2: rgba(255,255,255,0.15);
  --text: #e8e6df;
  --text2: #9a9890;
  --text3: #5c5b58;
  --accent-hw-light: #85B7EB;
  --accent-hw-bg: rgba(59,139,212,0.12);
  --accent-lang-light: #5DCAA5;
  --accent-lang-bg: rgba(29,158,117,0.12);
  --accent-formal-light: #AFA9EC;
  --accent-formal-bg: rgba(127,119,221,0.1);
  --edge-strict: #888780;
  --edge-equiv: #EF9F27;
  --edge-compile: #5DCAA5;
  --edge-incompat: #D85A30;
  --tier-label: #3c3b38;
  --tier-line: rgba(255,255,255,0.035);
  --tag-amber: #FAC775;
  --tag-coral: #F0997B;
  --tag-gray: #B4B2A9;
  --tag-teal: #5DCAA5;
}
body { transition: background 0.2s, color 0.2s; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Georgia', serif;
  height: 100vh;
  display: flex;
  flex-direction: column;
}
header {
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 3rem 2rem;
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
}
header h1 {
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  font-family: 'Georgia', serif;
  color: var(--text);
}
header .subtitle {
  font-size: 0.875rem;
  color: var(--text2);
  font-family: 'Georgia', serif;
  font-style: italic;
}
.layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  flex: 1;
  min-height: 0;
}
.page-footnote {
  flex: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.7rem 3rem;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  font-style: italic;
  color: var(--text3);
}
.page-footnote a {
  color: var(--text2);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-footnote a:hover { color: var(--text); }
.graph-panel {
  position: relative;
  overflow: hidden;
  border-right: 1px solid var(--border);
}
.graph-panel svg {
  width: 100%;
  height: 100%;
}
.sidebar {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.legend {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.legend h3 {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text3);
  margin-bottom: 0.3rem;
}
.legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 1rem;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text2);
}
.legend-dot {
  width: 10px; height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}
.legend-line {
  width: 24px; height: 2px;
  flex-shrink: 0;
}
.detail-panel {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}
.detail-empty {
  color: var(--text3);
  font-size: 0.85rem;
  font-style: italic;
  text-align: center;
  padding: 3rem 1rem;
  line-height: 1.8;
}
.detail-empty strong {
  display: block;
  color: var(--text2);
  font-size: 1rem;
  font-style: normal;
  margin-bottom: 0.5rem;
  font-weight: 400;
}
.model-title {
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 0.2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.model-abbrev {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg3);
  color: var(--text2);
  border: 1px solid var(--border2);
}
.model-year {
  font-size: 0.78rem;
  color: var(--text3);
  font-family: var(--font-mono);
  margin-bottom: 1rem;
}
.model-description {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text2);
  margin-bottom: 1.25rem;
  border-left: 2px solid var(--border2);
  padding-left: 0.85rem;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}
.tag {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tag-hardware { background: var(--accent-hw-bg); color: var(--accent-hw-light); border: 1px solid rgba(59,139,212,0.25); }
.tag-language { background: var(--accent-lang-bg); color: var(--accent-lang-light); border: 1px solid rgba(29,158,117,0.25); }
.tag-formal   { background: var(--accent-formal-bg); color: var(--accent-formal-light); border: 1px solid rgba(127,119,221,0.25); }
.tag-theoretical { background: rgba(239,159,39,0.1); color: var(--tag-amber); border: 1px solid rgba(239,159,39,0.2); }
.tag-operational { background: rgba(216,90,48,0.1); color: var(--tag-coral); border: 1px solid rgba(216,90,48,0.2); }
.tag-standard { background: rgba(136,135,128,0.1); color: var(--tag-gray); border: 1px solid rgba(136,135,128,0.2); }
.tag-compilation { background: rgba(93,202,165,0.1); color: var(--tag-teal); border: 1px solid rgba(93,202,165,0.2); }
.section-head {
  font-size: 0.68rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text3);
  margin-bottom: 0.6rem;
  margin-top: 1rem;
}
.ref-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.ref-item {
  font-size: 0.8rem;
  padding: 0.6rem 0.75rem;
  background: var(--bg3);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  line-height: 1.5;
}
.ref-title {
  color: var(--text);
  margin-bottom: 0.2rem;
  font-style: italic;
}
.ref-meta {
  color: var(--text3);
  font-family: var(--font-mono);
  font-size: 0.73rem;
}
.ref-link {
  color: var(--accent-hw-light);
  text-decoration: none;
  font-size: 0.73rem;
  font-family: var(--font-mono);
}
.ref-link:hover { text-decoration: underline; }
.edges-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.edge-item {
  font-size: 0.8rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}
.edge-marker {
  flex-shrink: 0;
  margin-top: 2px;
  width: 8px; height: 8px;
  border-radius: 2px;
}
.edge-text { color: var(--text2); line-height: 1.5; }
.edge-note { color: var(--text3); font-size: 0.75rem; display: block; }
.hw-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.hw-chip {
  font-size: 0.73rem;
  font-family: var(--font-mono);
  padding: 2px 8px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 3px;
  color: var(--text2);
}

/* Graph node styles */
.node-group { cursor: pointer; }
.node-group:hover .node-rect { stroke-opacity: 0.8; }
.node-rect {
  stroke-width: 1;
  transition: all 0.15s;
}
.node-label {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: var(--text);
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
  font-weight: 500;
}
.node-sublabel {
  font-size: 9px;
  fill: var(--text2);
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
  font-family: 'Georgia', serif;
  font-style: italic;
}
.node-hw { fill: rgba(59,139,212,0.18); stroke: rgba(59,139,212,0.6); }
.node-lang { fill: rgba(29,158,117,0.18); stroke: rgba(29,158,117,0.6); }
.node-both { fill: rgba(127,119,221,0.18); stroke: rgba(127,119,221,0.6); }
.node-selected .node-rect { stroke-width: 2 !important; }
.node-hw.node-selected { stroke: #3B8BD4 !important; }
.node-lang.node-selected { stroke: #1D9E75 !important; }
.node-both.node-selected { stroke: #7F77DD !important; }
.node-dimmed { opacity: 0.25; transition: opacity 0.2s; }

.edge-path { fill: none; stroke-width: 1.2; }
.edge-strictly-weaker { stroke: var(--edge-strict); stroke-opacity: 0.55; }
.edge-equivalent { stroke: var(--edge-equiv); stroke-opacity: 0.8; stroke-dasharray: 4 3; }
.edge-compilation { stroke: var(--edge-compile); stroke-opacity: 0.65; stroke-dasharray: 6 3; }
.edge-incomparable { stroke: var(--edge-incompat); stroke-opacity: 0.45; stroke-dasharray: 2 4; }
.edge-dimmed { opacity: 0.05 !important; transition: opacity 0.2s; }

.controls {
  position: absolute;
  top: 1rem;
  left: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.ctrl-btn {
  width: 32px; height: 32px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 6px;
  color: var(--text2);
  cursor: pointer;
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.ctrl-btn:hover { background: var(--bg3); color: var(--text); }

.filter-bar {
  position: absolute;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  max-width: 260px;
}
.filter-btn {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border2);
  background: var(--bg2);
  color: var(--text2);
  cursor: pointer;
  transition: all 0.15s;
}
.filter-btn.active-hw { background: var(--accent-hw-bg); color: var(--accent-hw-light); border-color: rgba(59,139,212,0.4); }
.filter-btn.active-lang { background: var(--accent-lang-bg); color: var(--accent-lang-light); border-color: rgba(29,158,117,0.4); }
.filter-btn.active-all { background: var(--bg3); color: var(--text); border-color: var(--border2); }

.theme-toggle {
  margin-left: auto;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border2);
  background: var(--bg2);
  color: var(--text2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.theme-toggle:hover { background: var(--bg3); color: var(--text); }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }
