/* ═══════════════════════════════════════════════════════════════
   AI Mind Map — Architecture Page Styles
   Oatmeal & Ink Light Theme
   ═══════════════════════════════════════════════════════════════ */

/* ── Local Theme Tokens ──────────────────────────────────────── */
:root {
  --bg-primary:      #F7F4F0;
  --bg-secondary:    #EDE9E3;
  --bg-input:        #FFFFFF;
  --accent-primary:  #E8611A;
  --accent-hover:    #C44D0F;
  --accent-subtle:   rgba(232, 97, 26, 0.08);
  --text-primary:    #2C2520;
  --text-secondary:  #6B6560;
  --border-soft:     rgba(44, 37, 32, 0.08);
  --border-mid:      rgba(44, 37, 32, 0.14);
  --card-bg:         #FFFFFF;
  --card-shadow:     0 1px 3px rgba(44, 37, 32, 0.06), 0 4px 16px rgba(44, 37, 32, 0.04);
  --card-shadow-hover: 0 4px 12px rgba(44, 37, 32, 0.1), 0 8px 32px rgba(44, 37, 32, 0.06);
  --amber:           #D4901F;
  --code-green:      #1A7F37;
  --radius-sm:       6px;
  --radius-md:       10px;
  --transition:      0.25s ease;
  --ease-out:        cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Pipeline ─────────────────────────────────────────────── */
.pipeline {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.pipeline-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: nowrap;
}
.pipeline-row--center {
  justify-content: center;
}

.pipe-card {
  text-align: center;
  padding: 1.4rem 1.2rem;
  min-width: 180px;
  max-width: 220px;
  transition: all var(--transition);
  position: relative;
  cursor: default;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
}
.pipe-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: var(--card-shadow-hover);
}
.pipe-card.highlight {
  border-color: var(--accent-primary);
  box-shadow: var(--card-shadow-hover);
}
.pipe-card--wide {
  min-width: 300px;
  max-width: 420px;
}
.pipe-card--agent {
  border-color: rgba(232, 97, 26, 0.25);
  background: var(--accent-subtle);
}
.pipe-card--agent:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(232, 97, 26, 0.12), var(--card-shadow-hover);
}

.pipe-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}
.pipe-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--text-primary);
}
.pipe-card p {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Pipe arrows */
.pipe-arrow {
  display: flex;
  align-items: center;
  padding: 0 4px;
  flex-shrink: 0;
}
.pipe-line {
  stroke: var(--accent-primary);
  stroke-width: 2;
  stroke-dasharray: 6 4;
  animation: dashFlow 1.5s linear infinite;
}
@keyframes dashFlow {
  to { stroke-dashoffset: -20; }
}

/* Vertical connector */
.pipeline-vert-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.pipe-protocol-label {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Geist Mono', 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--border-soft);
}

/* Responsive pipeline */
@media (max-width: 768px) {
  .pipeline-row {
    flex-direction: column;
    gap: 0;
  }
  .pipe-arrow {
    transform: rotate(90deg);
    padding: 8px 0;
  }
  .pipe-card { min-width: 0; max-width: 280px; width: 100%; }
  .pipe-card--wide { max-width: 280px; }
}

/* ── Memory Tiers ─────────────────────────────────────────── */
.memory-tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 768px) {
  .memory-tiers { grid-template-columns: 1fr; }
}

.memory-tier {
  position: relative;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 1.5rem;
}
.memory-tier::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
}
.memory-tier[data-tier="1"]::before { background: var(--accent-primary); }
.memory-tier[data-tier="2"]::before { background: var(--amber); }
.memory-tier[data-tier="3"]::before { background: var(--code-green); }

.tier-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.5rem;
}
.tier-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}
.tier-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 1rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #fff;
  background: var(--accent-primary);
}
.badge--amber {
  background: var(--amber);
}
.badge--green {
  background: var(--code-green);
}

/* Token limit bar */
.tier-limit {
  position: relative;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 4px;
  margin-bottom: 1rem;
  overflow: hidden;
}
.tier-limit-bar {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: var(--bar-width);
  border-radius: 4px;
  transition: width 1s var(--ease-out);
}
.memory-tier[data-tier="1"] .tier-limit-bar { background: var(--accent-primary); }
.memory-tier[data-tier="2"] .tier-limit-bar { background: var(--amber); }
.memory-tier[data-tier="3"] .tier-limit-bar { background: var(--code-green); }

.tier-limit-text {
  position: absolute;
  right: 0;
  top: 14px;
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-family: 'Geist Mono', 'JetBrains Mono', monospace;
}

.tier-features {
  list-style: none;
  padding: 0;
}
.tier-features li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 4px 0;
  padding-left: 18px;
  position: relative;
}
.tier-features li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: 700;
}

/* ── Language Grid ────────────────────────────────────────── */
.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
}
.lang-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
  cursor: default;
}
.lang-badge span:first-child {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  min-width: 24px;
  text-align: center;
}
.lang-badge:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(232, 97, 26, 0.1);
}

/* Language-specific hover colors */
.lang-badge[data-lang="ts"]:hover  { border-color: #3178c6; }
.lang-badge[data-lang="js"]:hover  { border-color: #f7df1e; }
.lang-badge[data-lang="py"]:hover  { border-color: #3776ab; }
.lang-badge[data-lang="rs"]:hover  { border-color: #ce412b; }
.lang-badge[data-lang="go"]:hover  { border-color: #00add8; }
.lang-badge[data-lang="java"]:hover { border-color: #ed8b00; }
.lang-badge[data-lang="rb"]:hover  { border-color: #cc342d; }
.lang-badge[data-lang="php"]:hover { border-color: #777bb4; }
.lang-badge[data-lang="swift"]:hover { border-color: #fa7343; }
.lang-badge[data-lang="kt"]:hover  { border-color: #7f52ff; }
.lang-badge[data-lang="dart"]:hover { border-color: #0175c2; }

/* ── Edge Types Grid ──────────────────────────────────────── */
.edge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.edge-card {
  text-align: center;
  padding: 1.2rem 1rem;
  transition: all var(--transition);
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
}
.edge-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-primary);
  box-shadow: var(--card-shadow-hover);
}
.edge-icon {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}
.edge-card h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-primary);
  font-family: 'Geist Mono', 'JetBrains Mono', monospace;
  margin-bottom: 0.2rem;
}
.edge-card p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* ── PageRank Demo ────────────────────────────────────────── */
.pagerank-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 2rem;
}
@media (max-width: 768px) {
  .pagerank-demo { grid-template-columns: 1fr; }
}

.pagerank-visual {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: center;
}

.pr-node {
  text-align: center;
  flex-shrink: 0;
}
.pr-node--large {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 3px solid var(--code-green);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(26, 127, 55, 0.15);
  background: rgba(26, 127, 55, 0.06);
  animation: pulseGlow 3s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 16px rgba(26, 127, 55, 0.12); }
  50%      { box-shadow: 0 0 32px rgba(26, 127, 55, 0.2); }
}

.pr-label {
  font-family: 'Geist Mono', 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--code-green);
}
.pr-score {
  font-size: 0.65rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.pr-edges {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 60px;
  flex-shrink: 0;
}
.pr-edge {
  height: 2px;
  border-radius: 1px;
  background: var(--accent-primary);
}
.pr-edge--thick  { height: 4px; opacity: 1; }
.pr-edge--medium { height: 2px; opacity: 0.6; }
.pr-edge--thin   { height: 1px; opacity: 0.3; }

.pr-callers {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pr-caller {
  font-family: 'Geist Mono', 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
  padding: 4px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  transition: all var(--transition);
}
.pr-caller:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.pagerank-explain h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}
.pagerank-explain p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 0.8rem;
}
.pagerank-explain ul {
  list-style: none;
  padding: 0;
}
.pagerank-explain li {
  padding: 4px 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.pagerank-explain code {
  color: var(--accent-primary);
  font-size: 0.82rem;
  background: var(--accent-subtle);
  padding: 2px 6px;
  border-radius: 3px;
}

/* ── Divider ──────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border-soft);
  margin: 2rem auto;
}

/* ── Utility ──────────────────────────────────────────────── */
.text-center { text-align: center; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }