/* URIEL — Constitutional AI · public landing page
 * Visual system mirrors the runtime UI (src/uriel/web/templates/index.html):
 *   - pure black background
 *   - gold (#FFD700) accent with breathing glow
 *   - Inter for display, Courier New for body
 *   - brutalist edges, monospace data, no gradients of decoration
 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700;900&display=swap');

:root {
  --primary-black: #000;
  --slate-dark: #0a0a0a;
  --slate-mid: #111;
  --slate-light: #1a1a1a;
  --border: #222;
  --border-heavy: #333;
  --text-primary: #d0d0d0;
  --text-secondary: #888;
  --text-tertiary: #666;
  --accent: #FFD700;
  --accent-dim: rgba(255, 215, 0, 0.3);
  --accent-glow: rgba(255, 215, 0, 0.12);
  --success: #44ff44;
  --error: #ff4444;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--primary-black);
  color: var(--text-primary);
  font-family: 'Courier New', Courier, monospace;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Star-field background — very subtle, mirrors the runtime tile mosaic */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(1px 1px at 20% 30%, rgba(255,215,0,0.4) 50%, transparent 100%),
    radial-gradient(1px 1px at 80% 70%, rgba(255,215,0,0.25) 50%, transparent 100%),
    radial-gradient(1px 1px at 50% 50%, rgba(255,215,0,0.2) 50%, transparent 100%),
    radial-gradient(1px 1px at 10% 80%, rgba(255,215,0,0.3) 50%, transparent 100%),
    radial-gradient(1px 1px at 90% 20%, rgba(255,215,0,0.35) 50%, transparent 100%),
    radial-gradient(1px 1px at 35% 85%, rgba(255,215,0,0.2) 50%, transparent 100%),
    radial-gradient(1px 1px at 65% 15%, rgba(255,215,0,0.3) 50%, transparent 100%);
  background-size: 400px 400px;
  z-index: -1;
  pointer-events: none;
  opacity: 0.6;
}

/* ============================================================ BANNER */
.banner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 40px;
  background: var(--slate-dark);
  border-bottom: 4px solid var(--border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.9);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.banner-logo {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  filter: drop-shadow(0 0 14px var(--accent-dim));
  animation: logo-breathe 4s ease-in-out infinite;
}

@keyframes logo-breathe {
  0%, 100% { filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.3)); }
  50%      { filter: drop-shadow(0 0 22px rgba(255, 215, 0, 0.7)); }
}

/* Runtime-UI loader rings — exact match to .uriel-tab-loader pattern from
   src/uriel/web/templates/index.html (Phase 68 per-tab loading overlay).
   Outer ring: dashed (42 18), slow clockwise 22s.
   Inner ring: dashed (14 10), fast counter-clockwise 6s, thicker stroke.
   Rune path: 2.6s breath (opacity + scale pulse).
   transform-box:fill-box pivots around the circle's own center
   regardless of the SVG viewBox — WKWebView-safe per the runtime comment. */
.banner-logo .ur-ring-outer,
.hero-logo .ur-ring-outer,
.footer-logo .ur-ring-outer {
  transform-box: fill-box;
  transform-origin: center;
  stroke-dasharray: 42 18;
  animation: spin-ring-cw 22s linear infinite;
}
.banner-logo .ur-ring-inner,
.hero-logo .ur-ring-inner,
.footer-logo .ur-ring-inner {
  transform-box: fill-box;
  transform-origin: center;
  stroke-dasharray: 14 10;
  stroke-width: 14;
  animation: spin-ring-ccw 6s linear infinite;
}
.banner-logo .ur-rune,
.hero-logo .ur-rune,
.footer-logo .ur-rune {
  transform-box: fill-box;
  transform-origin: center;
  animation: rune-breathe 2.6s ease-in-out infinite;
}
@keyframes spin-ring-cw  { from { transform: rotate(0deg);   } to { transform: rotate(360deg); } }
@keyframes spin-ring-ccw { from { transform: rotate(360deg); } to { transform: rotate(0deg);   } }
@keyframes rune-breathe {
  0%, 100% { opacity: 0.92; transform: scale(1.00); }
  50%      { opacity: 1.00; transform: scale(1.03); }
}


.banner-title-block { display: flex; align-items: baseline; gap: 12px; }
.banner-title {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 28px;
  color: var(--accent);
  letter-spacing: 8px;
  text-shadow: 0 0 22px var(--accent-dim);
}
.banner-version {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 3px;
}
.banner-nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
  z-index: 1;
}
.banner-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.banner-nav a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ============================================================ HERO */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 40px 100px;
  min-height: 80vh;
  position: relative;
}
.hero-logo {
  width: 220px;
  height: 220px;
  filter: drop-shadow(0 0 30px rgba(255, 215, 0, 0.5));
  animation: logo-breathe 5s ease-in-out infinite;
  margin-bottom: 40px;
}
.hero-title {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(60px, 12vw, 140px);
  color: var(--accent);
  letter-spacing: clamp(8px, 2vw, 24px);
  text-shadow:
    0 0 40px rgba(255, 215, 0, 0.5),
    0 0 80px rgba(255, 215, 0, 0.25);
  line-height: 1;
}
.hero-subtitle {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-tertiary);
  letter-spacing: 6px;
  text-transform: uppercase;
  margin-top: 14px;
}
.hero-statement {
  max-width: 760px;
  margin: 50px auto 0;
  color: var(--text-primary);
  font-size: 18px;
  line-height: 1.7;
  letter-spacing: 0.5px;
}
.hero-quote {
  max-width: 640px;
  margin: 40px auto 0;
  color: var(--text-secondary);
  font-size: 14px;
  font-style: italic;
  letter-spacing: 0.5px;
  border-left: 2px solid var(--accent);
  padding-left: 20px;
  text-align: left;
}
.hero-cta {
  display: flex;
  gap: 16px;
  margin-top: 56px;
}
.btn {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 14px 28px;
  text-decoration: none;
  border: 2px solid var(--border-heavy);
  color: var(--text-primary);
  background: transparent;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-primary {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: inset 0 0 16px rgba(255, 215, 0, 0.08), 0 0 12px rgba(255, 215, 0, 0.15);
}
.btn:hover {
  background: var(--accent);
  color: var(--primary-black);
  border-color: var(--accent);
}

/* ============================================================ SECTIONS */
section {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-title {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 36px;
  color: var(--accent);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 20px;
  text-shadow: 0 0 18px rgba(255, 215, 0, 0.4), 0 0 36px rgba(255, 215, 0, 0.15);
  line-height: 1.1;
  border-left: 5px solid var(--accent);
  padding-left: 22px;
  margin-left: -22px;
}
.section-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-lede {
  font-size: 17px;
  color: var(--text-primary);
  line-height: 1.8;
  max-width: 820px;
  margin-bottom: 40px;
}

/* ============================================================ METRICS GRID */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}
.metric {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 24px 20px;
  text-align: left;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.metric:hover {
  border-color: var(--accent);
  box-shadow: 0 0 22px var(--accent-glow);
}
.metric-value {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 36px;
  color: var(--accent);
  line-height: 1;
  letter-spacing: 1px;
  text-shadow: 0 0 14px var(--accent-dim);
}
.metric-label {
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ============================================================ PRINCIPLES */
.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
  margin-top: 40px;
}
.principle {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 30px 28px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.principle:hover {
  border-color: var(--accent);
  box-shadow: 0 0 22px var(--accent-glow);
  transform: translateY(-2px);
}
.principle-num {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 4px;
  margin-bottom: 8px;
  opacity: 0.85;
}
.principle-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
  text-shadow: 0 0 10px var(--accent-dim);
}
.principle-desc {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.7;
}

/* ============================================================ ROLES */
.roles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-top: 30px;
}
.role {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 26px 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.role:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.role-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.role-desc {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.65;
}

/* ============================================================ PRACTICE ROWS */
.practice {
  margin-top: 30px;
}
.practice-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  align-items: start;
}
.practice-row:first-of-type { border-top: 0; }
.practice-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.practice-body {
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 15px;
}

/* ============================================================ TABLE OF CONTENTS */
.toc-section { padding-top: 60px; padding-bottom: 60px; }
.toc-list {
  list-style: none;
  padding: 0;
  margin: 30px 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 3px solid var(--accent);
}
.toc-list li {
  border-bottom: 1px solid var(--border);
}
.toc-list li:nth-child(odd)  { border-right: 1px solid var(--border); }
.toc-list a {
  display: grid;
  grid-template-columns: 60px 1fr;
  grid-template-areas: "num title" "num blurb";
  gap: 4px 18px;
  padding: 22px 24px;
  color: var(--text-primary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.toc-list a:hover {
  background: rgba(255, 215, 0, 0.06);
}
.toc-list a:hover .toc-title { color: var(--accent); }
.toc-num {
  grid-area: num;
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: 1px;
  align-self: center;
  text-align: right;
  opacity: 0.85;
}
.toc-title {
  grid-area: title;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  transition: color 0.2s;
}
.toc-blurb {
  grid-area: blurb;
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* ============================================================ SOVEREIGNTY PILLARS */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin: 36px 0;
}
.pillar {
  border: 3px solid var(--border-heavy);
  background: var(--slate-mid);
  padding: 28px 26px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pillar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, rgba(255,215,0,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.pillar:hover {
  border-color: var(--accent);
  box-shadow: 0 0 28px var(--accent-glow);
}
.pillar-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 17px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
  text-shadow: 0 0 12px var(--accent-dim);
  position: relative;
}
.pillar-desc {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.7;
  position: relative;
}

/* ============================================================ WALKTHROUGH STEPS */
.walkthrough {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 36px 0;
  border: 3px solid var(--border-heavy);
  background: var(--slate-mid);
}
.walk-step {
  padding: 32px 32px;
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: background 0.2s;
}
.walk-step:last-child { border-bottom: 0; }
.walk-step:hover { background: rgba(255, 215, 0, 0.025); }
.walk-step-num {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 8px;
  opacity: 0.85;
}
.walk-step-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 20px;
  color: var(--accent);
  letter-spacing: 1.5px;
  margin-bottom: 14px;
  text-shadow: 0 0 12px var(--accent-dim);
}
.walk-step-body {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.75;
}
.walk-step-body strong {
  color: var(--accent);
  letter-spacing: 0.5px;
}

/* ============================================================ AGENTS GRID */
.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  margin-top: 36px;
}
.agent {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 26px 24px;
  position: relative;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.agent:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 0 22px var(--accent-glow);
}
.agent-tag {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 10px;
  color: var(--text-tertiary);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.agent-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
  text-shadow: 0 0 12px var(--accent-dim);
}
.agent-cap {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.7;
}
.agent-cap em {
  color: var(--text-secondary);
  font-style: italic;
}

/* ============================================================ CONTRAST (IS / IS NOT) */
.contrast {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}
.contrast-block {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 28px 26px;
}
.contrast-yes { border-left: 3px solid var(--accent); }
.contrast-no  { border-left: 3px solid #ff4444; }
.contrast-label {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 12px;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.contrast-yes .contrast-label { color: var(--accent); }
.contrast-no  .contrast-label { color: #ff5555; opacity: 0.85; }
.contrast-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contrast-block li {
  padding: 8px 0;
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.contrast-block li:last-child { border-bottom: 0; }

/* ============================================================ COMMITMENTS LIST */
.commitments {
  list-style: none;
  padding: 0;
  margin: 30px 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.commitments li {
  padding: 18px 22px;
  background: var(--slate-mid);
  border-left: 3px solid var(--accent);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.65;
}
.commitments li strong {
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  letter-spacing: 1px;
}

/* ============================================================ FIVE LAYERS */
.five-layers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 30px 0;
}
.layer {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 24px 22px;
  position: relative;
}
.layer-num {
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 36px;
  color: var(--accent);
  opacity: 0.18;
  line-height: 1;
}
.layer-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.layer-desc {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.65;
}

/* ============================================================ INSPECT LIST */
.inspect-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.inspect-list li {
  padding: 16px 20px;
  background: var(--slate-mid);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 13px;
  line-height: 1.6;
}
.inspect-list li strong {
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  letter-spacing: 1px;
}

/* ============================================================ MEMORY LAYERS */
.memory-layers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 30px 0;
}
.mem-layer {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 24px 22px;
}
.mem-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 15px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.mem-desc {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.6;
}

/* ============================================================ CAPABILITIES (utility) */
.capabilities {
  display: flex;
  flex-direction: column;
  gap: 26px;
  margin-top: 32px;
}
.capability {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 34px 30px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.capability:hover {
  border-color: var(--accent);
  box-shadow: 0 0 22px var(--accent-glow);
}
.capability-tag {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 10px;
  color: var(--text-tertiary);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.capability-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
  text-shadow: 0 0 12px var(--accent-dim);
}
.capability-desc {
  font-size: 15px;
  color: var(--text-primary);
  line-height: 1.75;
  margin-bottom: 14px;
}
.capability-desc:last-of-type { margin-bottom: 0; }
.capability-tags-row {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.capability-tags-row span {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--border-heavy);
  color: var(--text-secondary);
  background: var(--slate-dark);
}

/* ============================================================ COGNITIVE LIFECYCLE DIAGRAM */
.lifecycle {
  margin: 40px auto 24px;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}
.lifecycle-step {
  border: 3px solid var(--border-heavy);
  background: var(--slate-mid);
  padding: 18px 26px;
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  text-align: center;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  text-shadow: 0 0 12px var(--accent-dim);
}
.lifecycle-step:hover {
  border-color: var(--accent);
  box-shadow: 0 0 28px var(--accent-glow);
  transform: translateX(2px);
}
.lifecycle-step::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,215,0,0.05) 0%, transparent 70%);
  pointer-events: none;
}
.lifecycle-arrow {
  align-self: center;
  width: 2px;
  height: 26px;
  background: linear-gradient(to bottom, var(--accent) 0%, var(--accent-dim) 100%);
  position: relative;
}
.lifecycle-arrow::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--accent-dim);
  border-bottom: 2px solid var(--accent-dim);
}
.lifecycle-step-num {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  display: block;
  margin-bottom: 4px;
  text-shadow: none;
}
@media (max-width: 720px) {
  .lifecycle { max-width: 100%; }
  .lifecycle-step { padding: 14px 18px; font-size: 12px; letter-spacing: 2px; }
  .lifecycle-arrow { height: 20px; }
}

/* ============================================================ INFLUENCES */
.influences {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin: 30px 0;
}
.influence {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 26px 24px;
  transition: border-color 0.2s, transform 0.2s;
}
.influence:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.influence-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 3px;
  margin-bottom: 6px;
}
.influence-trait {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
  line-height: 1.5;
}
.influence-desc {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.65;
}

/* Concept · Architecture · Behaviour structure inside each influence card */
.influence-meta {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 6px 14px;
  margin-top: 14px;
}
.influence-meta dt {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-tertiary);
  align-self: start;
  padding-top: 3px;
}
.influence-meta dd {
  margin: 0;
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.6;
}
@media (max-width: 720px) {
  .influence-meta { grid-template-columns: 1fr; gap: 2px 0; }
  .influence-meta dt { padding-top: 8px; }
  .influence-meta dd { padding-bottom: 4px; }
}

/* ============================================================ PULL QUOTES */
.pull-quote {
  margin: 56px auto 0;
  max-width: 760px;
  padding: 32px 28px;
  border-top: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  text-align: center;
  background:
    radial-gradient(ellipse at center, rgba(255,215,0,0.06) 0%, transparent 70%);
}
.pull-quote-text {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(20px, 3vw, 28px);
  color: var(--accent);
  letter-spacing: 1px;
  line-height: 1.4;
  text-shadow: 0 0 18px var(--accent-dim);
  display: inline-block;
}

/* ============================================================ AXIOMS */
.axioms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.axiom {
  border-left: 3px solid var(--accent);
  background: var(--slate-mid);
  padding: 20px 24px;
}
.axiom-num {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 3px;
  margin-bottom: 6px;
}
.axiom-text {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}

/* ============================================================ AGENT CARDS */
.agents {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}
.agent-card {
  border: 2px solid var(--border);
  background: var(--slate-mid);
  padding: 24px;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}
.agent-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.agent-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.agent-role {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.agent-desc {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.6;
}
.agent-card a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent-dim);
  font-size: 12px;
}

/* ============================================================ SUBSYSTEM ROWS */
.subsystem {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.subsystem:first-of-type { border-top: 0; }
.subsystem-name {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
}
.subsystem-tag {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 2px;
  margin-top: 6px;
}
.subsystem-body p {
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.7;
}
.subsystem-body code {
  background: var(--slate-light);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 2px;
  font-size: 13px;
}

/* ============================================================ CODE TREE */
.code-tree {
  background: var(--slate-dark);
  border: 2px solid var(--border);
  padding: 28px 32px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 13px;
  color: var(--text-primary);
  white-space: pre;
  overflow-x: auto;
  line-height: 1.6;
}
.code-tree .accent { color: var(--accent); }
.code-tree .muted { color: var(--text-tertiary); }

/* ============================================================ FOOTER */
footer {
  border-top: 4px solid var(--border);
  background: var(--slate-dark);
  padding: 60px 40px 40px;
  text-align: center;
  margin-top: 80px;
}
.footer-logo {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  display: block;
  filter: drop-shadow(0 0 12px var(--accent-dim));
}
.footer-text {
  color: var(--text-tertiary);
  font-size: 12px;
  letter-spacing: 2px;
  line-height: 2;
}
.footer-text a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent-dim);
}

/* ============================================================ MOBILE */
@media (max-width: 720px) {
  .banner { padding: 14px 18px; gap: 12px; }
  .banner-title { font-size: 18px; letter-spacing: 4px; }
  .banner-nav { gap: 12px; }
  .banner-nav a { font-size: 10px; letter-spacing: 1px; }
  .hero { padding: 60px 20px 60px; }
  .hero-logo { width: 140px; height: 140px; margin-bottom: 24px; }
  .hero-statement { font-size: 15px; }
  .hero-quote { font-size: 13px; }
  section { padding: 60px 20px; }
  .section-title { font-size: 22px; letter-spacing: 2px; }
  .subsystem { grid-template-columns: 1fr; gap: 14px; }
  .practice-row { grid-template-columns: 1fr; gap: 12px; padding: 24px 0; }
  .practice-name { font-size: 15px; }
  .practice-body { font-size: 14px; }
  .principle { padding: 22px 20px; }
  .principle-name { font-size: 16px; letter-spacing: 1px; }
  .role { padding: 20px 18px; }
  .role-name { font-size: 14px; letter-spacing: 1px; }
  .pull-quote { padding: 22px 18px; margin-top: 36px; }
  .pull-quote-text { font-size: 18px; }
  .metric-value { font-size: 28px; }
  .code-tree { font-size: 11px; padding: 18px; }
  .contrast { grid-template-columns: 1fr; gap: 14px; }
  .contrast-block { padding: 22px 20px; }
  .inspect-list { grid-template-columns: 1fr; gap: 10px; }
  .inspect-list li { padding: 14px 16px; font-size: 13px; }
  .capability { padding: 24px 20px; }
  .capability-name { font-size: 17px; letter-spacing: 1px; }
  .capability-desc { font-size: 14px; }
  .commitments li { padding: 14px 18px; font-size: 13px; }
  .layer { padding: 18px 16px; }
  .layer-num { font-size: 26px; }
  .layer-name { font-size: 14px; letter-spacing: 1px; }
  .mem-layer { padding: 18px 16px; }
  .mem-name { font-size: 13px; }
  .influence { padding: 20px 18px; }
  .influence-name { font-size: 15px; letter-spacing: 2px; }
  .section-title { font-size: 24px; letter-spacing: 2px; padding-left: 14px; margin-left: -14px; border-left-width: 4px; }
  .toc-list { grid-template-columns: 1fr; }
  .toc-list li:nth-child(odd) { border-right: 0; }
  .toc-list a { grid-template-columns: 44px 1fr; padding: 16px 18px; gap: 4px 12px; }
  .toc-num { font-size: 18px; }
  .toc-title { font-size: 13px; letter-spacing: 1px; }
  .toc-blurb { font-size: 11px; }
  .pillar { padding: 22px 20px; }
  .pillar-name { font-size: 15px; letter-spacing: 1px; }
  .walk-step { padding: 24px 20px; }
  .walk-step-name { font-size: 17px; letter-spacing: 1px; }
  .walk-step-body { font-size: 14px; }
  .agent { padding: 22px 20px; }
  .agent-name { font-size: 18px; letter-spacing: 2px; }
  .banner-nav { flex-wrap: wrap; }
}