/* ===== ADD — Agent Driven Development — Shared Styles ===== */

:root {
  --accent: #b00149;
  --accent-light: #d4326d;
  --accent-dark: #8a0038;
  --accent-muted: #c4607a;
  --gradient-start: #b00149;
  --gradient-mid: #d4326d;
  --gradient-end: #ff6b9d;
  --success: #22c55e;
  --warning: #eab308;
  --info: #0ea5e9;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f1f3f5;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-muted: #adb5bd;
  --border: #e9ecef;
  --card-bg: #ffffff;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --card-shadow-hover: 0 10px 30px rgba(0,0,0,0.1);
  --hero-text: #ffffff;
  --code-bg: #f8f9fa;
}

[data-theme="dark"] {
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --text-primary: #e4e4e4;
  --text-secondary: #a0a0a0;
  --text-muted: #6b7280;
  --border: rgba(255,255,255,0.08);
  --card-bg: rgba(255,255,255,0.05);
  --card-shadow: 0 1px 3px rgba(0,0,0,0.3);
  --card-shadow-hover: 0 10px 30px rgba(0,0,0,0.4);
  --code-bg: #161b22;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== SITE NAV ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  padding: 0 40px;
  display: flex;
  align-items: center;
  height: 56px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
[data-theme="dark"] .site-nav {
  background: rgba(15, 15, 35, 0.92);
}
.site-nav-brand {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--accent);
  text-decoration: none;
  margin-right: 32px;
  flex-shrink: 0;
}
.site-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.site-nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  transition: all 0.15s;
  white-space: nowrap;
}
.site-nav-links a:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}
.site-nav-links a.active {
  color: var(--accent);
  background: rgba(176, 1, 73, 0.08);
}
.site-nav-links a[href*="github"] {
  margin-left: auto;
}
.nav-theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  margin-left: 8px;
  transition: all 0.15s;
  flex-shrink: 0;
}
.nav-theme-toggle:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 18px;
  margin-left: auto;
}

/* ===== HEADER / HERO ===== */
.hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
  color: #ffffff;
  padding: 80px 40px 60px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -100px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(176,1,73,0.3) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -150px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(212,50,109,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 16px;
}
.hero-problem {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 12px;
  font-weight: 400;
}
.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero h1 .gradient-text {
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.6);
  max-width: 600px;
  margin-bottom: 12px;
}
.hero-tagline {
  font-size: 16px;
  color: var(--accent-light);
  font-style: italic;
  font-weight: 500;
}
.hero-nav {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.hero-nav a {
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.hero-nav .btn-primary {
  background: var(--accent);
  color: #fff;
}
.hero-nav .btn-primary:hover { background: var(--accent-dark); }
.hero-nav .btn-secondary {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.12);
}
.hero-nav .btn-secondary:hover { background: rgba(255,255,255,0.12); }

.theme-toggle {
  position: absolute;
  top: 24px; right: 24px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.7);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  z-index: 10;
  transition: all 0.2s;
}
.theme-toggle:hover { background: rgba(255,255,255,0.12); }

/* ===== METRICS BAR ===== */
.metrics-bar {
  max-width: 1100px;
  margin: -30px auto 0;
  padding: 0 40px;
  position: relative;
  z-index: 2;
}
.metrics-inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  overflow: hidden;
}
.metric {
  padding: 24px;
  text-align: center;
  border-right: 1px solid var(--border);
}
.metric:last-child { border-right: none; }
.metric-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--success);
}
.metric-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== SECTIONS ===== */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 40px;
}
.section-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.section h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
}

/* ===== CONCEPT SECTION ===== */
.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.concept-text h3 {
  font-size: 20px;
  margin-bottom: 16px;
}
.concept-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.principles {
  list-style: none;
}
.principles li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 12px;
  align-items: start;
}
.principles li:last-child { border-bottom: none; }
.principle-num {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.principle-content strong {
  display: block;
  margin-bottom: 2px;
}
.principle-content span {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ===== WORKFLOW SECTION ===== */
.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.workflow-step {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: all 0.3s;
  position: relative;
}
.workflow-step:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}
.workflow-step::after {
  content: '\2192';
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-muted);
  font-size: 18px;
  z-index: 1;
}
.workflow-step:last-child::after { content: none; }
.step-num {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 12px;
}
.step-num.purple { background: rgba(176,1,73,0.15); color: var(--accent-light); }
.step-num.green { background: rgba(34,197,94,0.15); color: var(--success); }
.workflow-step h4 {
  font-size: 16px;
  margin-bottom: 8px;
}
.workflow-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}
.workflow-step code {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 12px;
  color: var(--accent-light);
  background: rgba(176,1,73,0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ===== VALUE CARDS ===== */
.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.value-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--card-shadow);
  transition: all 0.3s;
}
.value-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}
.value-icon {
  font-size: 28px;
  margin-bottom: 12px;
  color: var(--accent);
}
.value-card h4 {
  font-size: 17px;
  margin-bottom: 8px;
}
.value-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== MATURITY TABLE ===== */
.maturity-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 14px;
}
.maturity-table th {
  background: var(--bg-tertiary);
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.maturity-table td {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}
.maturity-table tr:hover td {
  background: var(--bg-secondary);
}
.maturity-level {
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.level-poc { background: rgba(234,179,8,0.15); color: #ca8a04; }
.level-alpha { background: rgba(176,1,73,0.15); color: var(--accent-light); }
.level-beta { background: rgba(212,50,109,0.15); color: #d4326d; }
.level-ga { background: rgba(34,197,94,0.15); color: var(--success); }

/* ===== LEARNING SECTION ===== */
.learning-flow {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 0;
  align-items: center;
  margin-top: 30px;
}
.learning-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--card-shadow);
}
.learning-box h4 {
  font-size: 15px;
  margin-bottom: 12px;
}
.learning-box ul {
  list-style: none;
}
.learning-box li {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.learning-box li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.flow-arrow {
  text-align: center;
  font-size: 24px;
  color: var(--accent-muted);
}

.learning-triggers {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-top: 30px;
}
.trigger-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  box-shadow: var(--card-shadow);
}
.trigger-card .trigger-icon { font-size: 20px; margin-bottom: 6px; color: var(--accent); }
.trigger-card .trigger-label { font-size: 12px; color: var(--text-secondary); }

/* ===== COMMANDS TABLE ===== */
.commands-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  font-size: 14px;
  margin-bottom: 40px;
}
.commands-table th {
  background: var(--bg-tertiary);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.commands-table td {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}
.commands-table code {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 13px;
  color: var(--accent);
  background: rgba(176,1,73,0.1);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}

/* ===== TERMINAL ===== */
.terminal {
  background: #0d1117;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 40px;
}
.terminal-bar {
  background: rgba(255,255,255,0.03);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.terminal-dot {
  width: 12px; height: 12px; border-radius: 50%;
}
.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }
.terminal-title {
  flex: 1;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  font-family: 'SF Mono', Monaco, monospace;
}
.terminal-body {
  padding: 20px 24px;
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 14px;
  line-height: 2;
}
.terminal-body .prompt { color: #22c55e; }
.terminal-body .cmd { color: #d4326d; }
.terminal-body .arg { color: rgba(255,255,255,0.9); }
.terminal-body .comment { color: rgba(255,255,255,0.3); }

/* ===== AUDIENCE SECTION ===== */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.audience-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  transition: all 0.3s;
}
.audience-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}
.audience-card .audience-icon { font-size: 28px; margin-bottom: 12px; color: var(--accent); }
.audience-card h4 { font-size: 15px; margin-bottom: 8px; }
.audience-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* ===== ARCHITECTURE ===== */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.arch-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--card-shadow);
}
.arch-item h4 {
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--accent);
}
.arch-item p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 40px;
  text-align: center;
}
footer .footer-tagline {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
footer .footer-sub {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
footer .footer-built-by {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
footer .footer-meta {
  font-size: 12px;
  color: var(--text-muted);
}
footer a {
  color: var(--accent);
  text-decoration: none;
}
footer a:hover { text-decoration: underline; }
.footer-links {
  margin-bottom: 20px;
}
.footer-links a {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  margin: 0 12px;
}
.footer-links a:hover { text-decoration: underline; }

/* ===== AGENT SWARM ===== */
.swarm-flow { margin-top: 40px; }
.orchestrator-card {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
  border-radius: 16px;
  padding: 28px 32px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.orchestrator-card h4 { font-size: 20px; margin-bottom: 4px; }
.orchestrator-card > div:first-child p { font-size: 14px; opacity: 0.85; }
.orchestrator-badge {
  background: rgba(255,255,255,0.2);
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  white-space: nowrap;
}
.dispatch-arrows {
  display: flex;
  justify-content: space-around;
  padding: 4px 40px;
  color: var(--accent-muted);
  font-size: 14px;
  line-height: 1;
}
.sub-agents-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.sub-agent-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 16px;
  box-shadow: var(--card-shadow);
  transition: all 0.3s;
  text-align: center;
}
.sub-agent-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}
.sub-agent-icon { font-size: 28px; margin-bottom: 10px; color: var(--accent); }
.sub-agent-card h5 { font-size: 14px; margin-bottom: 4px; }
.sub-agent-card p { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }
.sub-agent-tools {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 10px;
}
.tool-tag {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(176,1,73,0.1);
  color: var(--accent);
  font-family: 'SF Mono', Monaco, monospace;
}
.verify-arrows {
  display: flex;
  justify-content: space-around;
  padding: 4px 40px;
  color: var(--success);
  font-size: 14px;
  line-height: 1;
  opacity: 0.5;
}
.verify-card {
  background: rgba(34,197,94,0.06);
  border: 2px dashed rgba(34,197,94,0.3);
  border-radius: 12px;
  padding: 20px 28px;
  text-align: center;
}
.verify-card h5 { color: var(--success); font-size: 16px; margin-bottom: 4px; }
.verify-card p { font-size: 13px; color: var(--text-secondary); }
.swarm-stats {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.swarm-stat {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  box-shadow: var(--card-shadow);
}
.swarm-stat .stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
}
.swarm-stat .stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ===== AUTONOMY SPECTRUM ===== */
.autonomy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.autonomy-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--card-shadow);
  transition: all 0.3s;
}
.autonomy-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
}
.autonomy-card.highlighted {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--card-shadow);
}
.autonomy-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.badge-guided { background: rgba(234,179,8,0.15); color: #ca8a04; }
.badge-balanced { background: rgba(176,1,73,0.15); color: var(--accent-light); }
.badge-autonomous { background: rgba(34,197,94,0.15); color: var(--success); }
.autonomy-card h4 { font-size: 18px; margin-bottom: 8px; }
.autonomy-card > p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; }
.autonomy-details {
  list-style: none;
}
.autonomy-details li {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.autonomy-details li:last-child { border-bottom: none; }
.autonomy-details li::before {
  content: '';
  position: absolute;
  left: 0; top: 12px;
  width: 8px; height: 8px;
  border-radius: 50%;
}
.autonomy-details.guided li::before { background: #ca8a04; }
.autonomy-details.balanced li::before { background: var(--accent); }
.autonomy-details.autonomous li::before { background: var(--success); }
.away-flow {
  margin-top: 32px;
  display: flex;
  align-items: stretch;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.away-flow-step {
  flex: 1;
  padding: 20px;
  text-align: center;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.away-flow-step:last-child { border-right: none; }
.away-flow-step .flow-icon { font-size: 22px; margin-bottom: 6px; color: var(--accent); }
.away-flow-step h5 { font-size: 13px; margin-bottom: 4px; }
.away-flow-step p { font-size: 12px; color: var(--text-secondary); }
.away-flow-step code {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 12px;
  color: var(--accent);
  background: rgba(176,1,73,0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ===== WORK HIERARCHY ===== */
.hierarchy-levels { margin-top: 40px; }
.hierarchy-level {
  border-left: 3px solid var(--border);
  padding: 0 0 0 24px;
  position: relative;
}
.hierarchy-level::before {
  content: '';
  position: absolute;
  left: -7px; top: 20px;
  width: 11px; height: 11px;
  border-radius: 50%;
  border: 3px solid var(--accent);
  background: var(--bg-primary);
}
[data-theme="dark"] .hierarchy-level::before { background: var(--bg-primary); }
.hierarchy-level:nth-child(1) { border-color: var(--gradient-start); margin-left: 0; }
.hierarchy-level:nth-child(1)::before { border-color: var(--gradient-start); }
.hierarchy-level:nth-child(2) { margin-left: 32px; border-color: var(--gradient-mid); }
.hierarchy-level:nth-child(2)::before { border-color: var(--gradient-mid); }
.hierarchy-level:nth-child(3) { margin-left: 64px; border-color: var(--gradient-end); }
.hierarchy-level:nth-child(3)::before { border-color: var(--gradient-end); }
.hierarchy-level:nth-child(4) { margin-left: 96px; border-color: var(--success); border-left-style: none; }
.hierarchy-level:nth-child(4)::before { border-color: var(--success); left: -5px; }
.hierarchy-content {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 12px 0 20px;
  box-shadow: var(--card-shadow);
}
.hierarchy-content h4 { font-size: 17px; margin-bottom: 4px; }
.hierarchy-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
}
.tag-roadmap { background: rgba(176,1,73,0.15); color: var(--accent); }
.tag-milestone { background: rgba(212,50,109,0.15); color: #d4326d; }
.tag-cycle { background: rgba(255,107,157,0.15); color: #ff6b9d; }
.tag-execution { background: rgba(34,197,94,0.15); color: var(--success); }
.hierarchy-content p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.hill-chart-demo {
  margin-top: 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--card-shadow);
}
.hill-chart-demo h5 {
  font-size: 14px;
  margin-bottom: 16px;
  text-align: center;
  color: var(--text-secondary);
}
.hill-visual {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 6px;
  height: 80px;
  margin-bottom: 8px;
}
.hill-bar {
  flex: 1;
  max-width: 80px;
  border-radius: 4px 4px 0 0;
  position: relative;
  transition: all 0.3s;
}
.hill-bar-label {
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  color: var(--text-muted);
  white-space: nowrap;
}
.hill-divider {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  padding-top: 30px;
  border-top: 2px solid var(--border);
  margin-top: 0;
}
.hill-divider span:first-child { color: var(--accent-muted); font-style: italic; }
.hill-divider span:last-child { color: var(--success); font-style: italic; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .site-nav { padding: 0 24px; }
  .site-nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 12px 24px;
    gap: 0;
  }
  [data-theme="dark"] .site-nav-links {
    background: rgba(15, 15, 35, 0.98);
  }
  .site-nav-links.open { display: flex; }
  .site-nav-links a { padding: 10px 12px; }
  .site-nav-links a[href*="github"] { margin-left: 0; }
  .nav-theme-toggle { margin: 8px 12px; }
  .nav-toggle { display: block; }

  .concept-grid,
  .learning-flow { grid-template-columns: 1fr; }
  .workflow-steps { grid-template-columns: 1fr 1fr; }
  .workflow-step::after { content: none; }
  .value-grid { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr 1fr; }
  .arch-grid { grid-template-columns: 1fr; }
  .metrics-inner { grid-template-columns: repeat(3, 1fr); }
  .learning-triggers { grid-template-columns: repeat(3, 1fr); }
  .sub-agents-grid { grid-template-columns: 1fr 1fr; }
  .autonomy-grid { grid-template-columns: 1fr; }
  .swarm-stats { grid-template-columns: 1fr; }
  .away-flow { flex-direction: column; }
  .away-flow-step { border-right: none; border-bottom: 1px solid var(--border); }
  .away-flow-step:last-child { border-bottom: none; }
  .hierarchy-level:nth-child(2) { margin-left: 16px; }
  .hierarchy-level:nth-child(3) { margin-left: 32px; }
  .hierarchy-level:nth-child(4) { margin-left: 48px; }
}
@media (max-width: 600px) {
  .hero { padding: 60px 24px 40px; }
  .section { padding: 60px 24px; }
  .metrics-bar { padding: 0 24px; }
  .metrics-inner { grid-template-columns: repeat(2, 1fr); }
  .workflow-steps { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .learning-triggers { grid-template-columns: repeat(2, 1fr); }
  .sub-agents-grid { grid-template-columns: 1fr; }
  .orchestrator-card { flex-direction: column; text-align: center; }
  .hierarchy-level:nth-child(2) { margin-left: 12px; }
  .hierarchy-level:nth-child(3) { margin-left: 24px; }
  .hierarchy-level:nth-child(4) { margin-left: 36px; }
}

/* ===== 404 PAGE ===== */
.four-oh-four {
  min-height: calc(100vh - 56px - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 40px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
  position: relative;
  overflow: hidden;
}
.four-oh-four::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(176,1,73,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.four-oh-four::after {
  content: '';
  position: absolute;
  bottom: -200px; left: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(212,50,109,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.four-oh-four-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
}
.four-oh-four-code {
  font-size: clamp(80px, 15vw, 140px);
  font-weight: 800;
  letter-spacing: -6px;
  line-height: 1;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  opacity: 0.9;
}
.four-oh-four h1 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.four-oh-four p {
  font-size: 16px;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
  margin-bottom: 32px;
}
.four-oh-four-terminal {
  text-align: left;
  margin-bottom: 36px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}
.four-oh-four-terminal .terminal-body {
  background: #0d1117;
  padding: 20px 24px;
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 14px;
  line-height: 2;
}
.four-oh-four-links {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.four-oh-four-links a {
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
}
.four-oh-four-links .btn-primary {
  background: var(--accent);
  color: #fff;
}
.four-oh-four-links .btn-primary:hover { background: var(--accent-dark); }
.four-oh-four-links .btn-secondary {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.12);
}
.four-oh-four-links .btn-secondary:hover { background: rgba(255,255,255,0.12); }

/* ===== PRINT ===== */
@media print {
  .site-nav { display: none; }
  .hero { background: #1a1a2e !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .theme-toggle { display: none; }
  .hero-nav { display: none; }
}