/* ============================================================
   CINEMAWEAVE — styles.css
   ============================================================ */

/* Google Fonts loaded via <link> in HTML — no @import here */

/* ────────────────────────────────────────────────────────────
   0. ANIMATED CSS PROPERTY (rotating gradient border)
   ──────────────────────────────────────────────────────────── */
@property --border-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

/* ────────────────────────────────────────────────────────────
   1. CSS CUSTOM PROPERTIES
   ──────────────────────────────────────────────────────────── */
:root {
  --bg-root:             #09080C;
  --bg-card:             #0D0E15;
  --bg-elevated:         #161824;
  --bg-muted:            #1C1F2E;

  --brand-orange:        #FF570A;
  --brand-orange-light:  #FF6B2B;
  --brand-orange-hover:  #FB540C;
  --brand-purple:        #838BFF;
  --brand-green:         #25E2A8;
  --brand-green-mint:    #19D59E;

  --border-subtle:       rgba(255, 255, 255, 0.08);
  --border-subtle-mid:   rgba(255, 255, 255, 0.12);
  --border-divider:      #374151;

  --text-primary:        #FFFFFF;
  --text-secondary:      #9CA3AF;
  --text-muted:          #6B7280;

  --radius-btn:          6px;
  --radius-card:         8px;
  --radius-card-lg:      12px;
  --radius-pill:         9999px;

  --transition-fast:     150ms ease;
  --transition-base:     200ms ease;
  --transition-slow:     300ms ease;

  --shadow-orange-glow:  0 0 20px rgba(255, 87, 10, 0.35);
  --shadow-purple-glow:  0 0 20px rgba(131, 139, 255, 0.25);
  --shadow-card-inset:   inset 0 1px 0 0 rgba(255, 255, 255, 0.06);
}

/* ────────────────────────────────────────────────────────────
   2. RESET & BASE
   ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; max-width: 100%; }
body {
  background-color: var(--bg-root);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px; line-height: 1.6; letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  max-width: 100%;
  transition: background-color 0.3s ease, color 0.3s ease;
}
main, footer { overflow-x: hidden; overflow-x: clip; max-width: 100%; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ────────────────────────────────────────────────────────────
   3. SKIP LINK
   ──────────────────────────────────────────────────────────── */
.skip-link {
  position: absolute; top: -100%; left: 1rem;
  padding: 0.5rem 1rem; background: var(--brand-orange); color: #fff;
  font-weight: 600; font-size: 0.875rem; border-radius: var(--radius-btn);
  z-index: 9999; transition: top var(--transition-fast);
}
.skip-link:focus { top: 1rem; }

/* ────────────────────────────────────────────────────────────
   4. LAYOUT UTILITIES
   ──────────────────────────────────────────────────────────── */
.container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: 1.5rem; }
.section-pad    { padding-block: 96px; }
.section-pad-sm { padding-block: 64px; }
section[id]     { scroll-margin-top: 76px; }

/* ────────────────────────────────────────────────────────────
   5. TYPOGRAPHY
   ──────────────────────────────────────────────────────────── */
h1, h2, h3, h4 { color: var(--text-primary); font-weight: 700; line-height: 1.15; }
h1 { font-size: clamp(1.875rem, 3.75vw, 2.875rem); letter-spacing: -0.03em; line-height: 1.12; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); letter-spacing: -0.03em; font-weight: 600; }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); letter-spacing: -0.025em; font-weight: 500; }
p  { color: var(--text-secondary); line-height: 1.7; }

.gradient-text {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--brand-purple) 35%, #FFFFFF 55%, var(--brand-purple) 80%, #FFFFFF 100%);
  background-size: 300% auto;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  animation: shimmer 6s linear infinite;
}

.section-kicker, .eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--brand-orange); margin-bottom: 1rem;
}
.section-heading         { max-width: 680px; margin-bottom: 3rem; }
.section-heading.narrow  { max-width: 520px; margin-inline: auto; text-align: center; }
.section-heading h2      { margin-bottom: 0.75rem; }
.section-heading p       { font-size: 1.0625rem; }
.text-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.9375rem; font-weight: 500; color: var(--brand-purple);
  transition: gap var(--transition-fast), opacity var(--transition-fast);
}
.text-link:hover { gap: 0.65rem; opacity: 0.9; }

/* ────────────────────────────────────────────────────────────
   6. BUTTONS
   ──────────────────────────────────────────────────────────── */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; font-size: 0.9375rem; font-weight: 600; font-family: inherit;
  border-radius: var(--radius-btn); border: none; line-height: 1; letter-spacing: -0.01em;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
              background var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap; text-decoration: none; max-width: 100%;
}
.button-primary {
  background: linear-gradient(180deg, var(--brand-orange-light) 0%, var(--brand-orange) 100%);
  color: #fff; border: 1px solid rgba(255,255,255,0.18); box-shadow: var(--shadow-orange-glow);
}
.button-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 0 40px rgba(255,87,10,0.55), 0 8px 24px rgba(255,87,10,0.2); }
.button-primary:active { transform: translateY(0) scale(1); }
.button-secondary {
  background: rgba(255,255,255,0.04); color: #EDEDED; border: 1px solid var(--border-subtle-mid);
}
.button-secondary:hover {
  background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.28);
  color: #fff; transform: translateY(-2px); box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.full-span { width: 100%; }

/* ────────────────────────────────────────────────────────────
   7. NAVIGATION
   ──────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 200; height: 64px;
  display: flex; align-items: center;
  background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none;
  border-bottom: 1px solid var(--border-subtle);
  transition: border-bottom-color var(--transition-base);
}
.site-header::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: rgba(9,8,12,0.86);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  pointer-events: none;
  transition: background var(--transition-base);
}
.site-header.is-open::before,
html.mobile-nav-open .site-header::before {
  background: #09080C;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.nav-wrap {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; width: 100%;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.625rem;
  font-size: 1rem; font-weight: 700; letter-spacing: -0.02em;
  color: var(--text-primary); text-decoration: none; flex-shrink: 0;
}
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--brand-orange-light), var(--brand-orange));
  color: #fff; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.02em;
  border-radius: 6px; animation: glowBreath 3s ease-in-out infinite; flex-shrink: 0;
}
.nav-links { display: flex; align-items: center; gap: 0.25rem; }
.nav-links a {
  font-size: 0.875rem; font-weight: 500; color: var(--text-secondary);
  padding: 0.4rem 0.75rem; border-radius: var(--radius-btn);
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}
.nav-links a:not(.nav-cta)::after {
  content: ''; position: absolute; bottom: 2px; left: 0.75rem; right: 0.75rem;
  height: 1px; background: var(--brand-orange);
  transform: scaleX(0); transform-origin: center; transition: transform var(--transition-base);
}
.nav-links a:not(.nav-cta):hover::after { transform: scaleX(1); }
.nav-links a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-links .nav-cta {
  margin-left: 0.5rem; padding: 0.45rem 1.1rem;
  background: linear-gradient(180deg, var(--brand-orange-light) 0%, var(--brand-orange) 100%);
  color: #fff; border-radius: var(--radius-btn); border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 0 14px rgba(255,87,10,0.3); font-size: 0.875rem; font-weight: 600;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.nav-links .nav-cta:hover { box-shadow: 0 0 28px rgba(255,87,10,0.6); transform: translateY(-1px); color: #fff; }

/* Nav control buttons (theme + a11y) + right cluster */
.nav-end {
  display: flex; align-items: center; gap: 0.5rem; margin-left: auto;
}
.nav-controls {
  display: flex; align-items: center; gap: 0.375rem;
  margin-left: 0.375rem; padding-left: 0.75rem;
  border-left: 1px solid var(--border-subtle);
}
.nav-icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-btn); color: var(--text-secondary);
  transition: background var(--transition-fast), border-color var(--transition-fast),
              color var(--transition-fast), box-shadow var(--transition-fast);
  flex-shrink: 0;
}
.nav-icon-btn:hover {
  background: rgba(255,255,255,0.09); border-color: var(--border-subtle-mid); color: var(--text-primary);
}
.nav-icon-btn.is-active {
  background: rgba(131,139,255,0.14); border-color: rgba(131,139,255,0.35);
  color: var(--brand-purple); box-shadow: 0 0 12px rgba(131,139,255,0.2);
}
/* Show/hide sun vs moon icon based on active theme */
.theme-toggle-btn .icon-sun  { display: none; }
.theme-toggle-btn .icon-moon { display: block; }
html[data-theme="light"] .theme-toggle-btn .icon-sun  { display: block; }
html[data-theme="light"] .theme-toggle-btn .icon-moon { display: none; }

/* Hamburger (mobile) */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  width: 36px; height: 36px; background: rgba(255,255,255,0.05); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-btn); padding: 0; flex-shrink: 0;
}
.nav-toggle span {
  display: block; width: 18px; height: 1.5px; background: var(--text-secondary);
  border-radius: 2px; transition: transform var(--transition-base), opacity var(--transition-base);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.nav-overlay[hidden],
.a11y-panel[hidden] { display: none !important; }
.nav-overlay {
  display: none; position: absolute; top: 100%; left: 0; right: 0;
  min-height: calc(100vh - 64px); min-height: calc(100dvh - 64px);
  max-height: calc(100vh - 64px); max-height: calc(100dvh - 64px);
  overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain;
  background-color: #09080C;
  z-index: 205; padding: 0.75rem 1.5rem 3rem;
  flex-direction: column; align-items: stretch; gap: 0;
  border-top: 1px solid var(--border-subtle);
  box-shadow: 0 24px 48px rgba(0,0,0,0.55);
}
.nav-overlay.open { display: flex; }
.nav-overlay a:not(.nav-cta) {
  display: flex; align-items: center; justify-content: space-between; width: 100%; flex-shrink: 0;
  font-size: 1.0625rem; font-weight: 500; line-height: 1.4; color: var(--text-primary);
  padding: 1rem 0.125rem; border-bottom: 1px solid var(--border-subtle); border-radius: 0;
  transition: color var(--transition-fast);
}
.nav-overlay a:not(.nav-cta)::after {
  content: '→'; font-size: 0.9375rem; color: var(--brand-orange); opacity: 0.85; flex-shrink: 0; margin-left: 1rem;
}
.nav-overlay a:not(.nav-cta):hover,
.nav-overlay a:not(.nav-cta):active { color: var(--brand-orange); background: transparent; }
.nav-overlay .nav-cta {
  display: flex; align-items: center; justify-content: center; width: 100%; flex-shrink: 0;
  margin-top: 1.25rem; padding: 0.95rem 1.5rem; border-radius: var(--radius-btn);
  background: linear-gradient(180deg, var(--brand-orange-light) 0%, var(--brand-orange) 100%);
  color: #fff; border: 1px solid rgba(255,255,255,0.18); text-align: center;
  font-size: 1rem; font-weight: 600; line-height: 1.3;
}

/* ────────────────────────────────────────────────────────────
   8. ACCESSIBILITY PANEL
   ──────────────────────────────────────────────────────────── */
.a11y-panel {
  position: absolute; top: calc(100% + 8px);
  right: max(1.5rem, calc(50% - 600px + 1.5rem));
  width: 268px; max-height: calc(100vh - 80px); max-height: calc(100dvh - 80px);
  overflow-y: auto; z-index: 210;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle-mid);
  border-radius: var(--radius-card-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), var(--shadow-card-inset);
  /* Animate open/close via .open class */
  transform-origin: top right;
  transform: scale(0.9) translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.22s cubic-bezier(0.22,1,0.36,1),
              opacity 0.18s ease, visibility 0.18s ease;
}
.a11y-panel.open {
  transform: scale(1) translateY(0);
  opacity: 1; visibility: visible;
}

.a11y-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
}
.a11y-panel-title {
  font-size: 0.8125rem; font-weight: 600; color: var(--text-primary); letter-spacing: 0.01em;
}
.a11y-panel-close {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px; border-radius: 4px;
  background: transparent; border: none; color: var(--text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.a11y-panel-close:hover { background: rgba(255,255,255,0.08); color: var(--text-primary); }

.a11y-panel-body { padding: 0.625rem; }

.a11y-section { padding: 0.5rem 0; }
.a11y-section + .a11y-section {
  border-top: 1px solid var(--border-subtle); margin-top: 0.25rem; padding-top: 0.75rem;
}

.a11y-section-label {
  font-size: 0.625rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted);
  padding: 0 0.5rem; margin-bottom: 0.5rem; display: block;
}

/* Color vision radio options */
.a11y-options { display: flex; flex-direction: column; gap: 0.125rem; }
.a11y-option {
  display: flex; align-items: center; gap: 0.625rem;
  padding: 0.5rem 0.5rem; border-radius: 6px; cursor: pointer;
  transition: background var(--transition-fast);
}
.a11y-option:hover { background: var(--bg-elevated); }
.a11y-option input[type="radio"] {
  width: 14px; height: 14px;
  accent-color: var(--brand-purple); cursor: pointer; flex-shrink: 0;
}
.a11y-option-text {
  display: flex; flex-direction: column;
  font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.3;
}
.a11y-option-text em {
  font-style: normal; font-size: 0.6875rem; color: var(--text-muted); margin-top: 0.1rem;
}
.a11y-option input:checked ~ .a11y-option-text { color: var(--text-primary); }
.a11y-option input:checked ~ .a11y-option-text em { color: var(--text-muted); }

/* Motion toggle row */
.a11y-motion-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.5rem 0.5rem;
}
.a11y-motion-label { font-size: 0.8125rem; color: var(--text-secondary); }

/* Toggle switch */
.a11y-switch {
  position: relative; width: 38px; height: 22px;
  background: var(--bg-elevated); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill); flex-shrink: 0;
  transition: background 0.22s ease, border-color 0.22s ease;
}
.a11y-switch[aria-checked="true"] {
  background: var(--brand-purple); border-color: var(--brand-purple);
}
.a11y-switch-thumb {
  position: absolute; top: 3px; left: 3px;
  width: 14px; height: 14px; background: white; border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
  transition: transform 0.22s cubic-bezier(0.22,1,0.36,1);
}
.a11y-switch[aria-checked="true"] .a11y-switch-thumb { transform: translateX(16px); }

/* ────────────────────────────────────────────────────────────
   9. HERO SECTION
   ──────────────────────────────────────────────────────────── */
.hero { position: relative; overflow: hidden; padding-block: 96px; }

.bg-grid-pattern {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.032) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.032) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 75% 55% at 50% 0%, #000 55%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 75% 55% at 50% 0%, #000 55%, transparent 100%);
  pointer-events: none; z-index: 0;
}
.hero-glow-purple {
  position: absolute; top: -100px; left: 50%; transform: translateX(-50%);
  width: min(900px,100vw); height: 500px;
  background: radial-gradient(ellipse 60% 45% at 50% 50%, rgba(131,139,255,0.13), transparent 72%);
  pointer-events: none; z-index: 0; animation: glowPulse 7s ease-in-out infinite;
}
.hero-glow-orange {
  position: absolute; top: 80px; right: 8%; width: 480px; height: 380px;
  background: radial-gradient(circle at 50% 50%, rgba(255,87,10,0.08), transparent 65%);
  pointer-events: none; z-index: 0; animation: glowPulse 9s ease-in-out infinite reverse;
}
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 420px; gap: 4rem; align-items: center;
}
.hero-copy { display: flex; flex-direction: column; }
.hero-copy .eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border-subtle-mid);
  border-radius: var(--radius-pill); font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-secondary);
  margin-bottom: 1.5rem; width: fit-content;
}
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--brand-green-mint); box-shadow: 0 0 8px var(--brand-green-mint);
  animation: pulse 2.2s ease-in-out infinite; flex-shrink: 0;
}
.hero-copy h1      { margin-bottom: 1rem; }
.hero-copy .tagline { font-size: 1.125rem; color: var(--brand-purple); font-style: italic; font-weight: 500; margin-bottom: 1.25rem; }
.hero-lede { font-size: 1.0625rem; color: var(--text-secondary); line-height: 1.75; max-width: 580px; margin-bottom: 2rem; }
.hero-actions { display: flex; align-items: center; gap: 0.875rem; flex-wrap: wrap; margin-bottom: 2.5rem; }

.stats-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--border-subtle); padding-top: 1.5rem; }
.stats-row > div { min-width: 0; padding-inline: 0.875rem; border-right: 1px solid var(--border-subtle); }
.stats-row > div:first-child { padding-left: 0; }
.stats-row > div:last-child  { border-right: none; padding-right: 0; }
.stats-row dt { font-size: clamp(0.875rem, 1.05vw, 1.0625rem); font-weight: 700; color: var(--text-primary); letter-spacing: -0.03em; line-height: 1.25; margin-bottom: 0.3rem; font-family: 'JetBrains Mono', monospace; }
.stats-row dd { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; letter-spacing: 0.02em; line-height: 1.4; }

.hero-panel {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card-lg);
  box-shadow: var(--shadow-card-inset), 0 24px 64px rgba(0,0,0,0.5);
  overflow: hidden; animation: float 7s ease-in-out infinite;
}
.panel-topline {
  display: flex; align-items: center; gap: 0.625rem; padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle); font-size: 0.75rem; color: var(--text-muted);
  font-weight: 500; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.02em;
}
.panel-topline .status-dot { width: 6px; height: 6px; }
.pipeline-card { padding: 1.25rem; display: flex; flex-direction: column; }
.pipeline-node {
  display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto;
  column-gap: 0.75rem; padding: 0.875rem 1rem;
  background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-card);
  transition: border-color 0.4s ease, box-shadow 0.4s ease, background 0.4s ease;
}
.pipeline-node.active { border-color: rgba(255,87,10,0.55); box-shadow: 0 0 20px rgba(255,87,10,0.18); background: rgba(255,87,10,0.04); }
.pipeline-node > span:first-child {
  grid-row: 1/3; display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; background: rgba(255,87,10,0.12); border: 1px solid rgba(255,87,10,0.25);
  border-radius: 5px; font-size: 0.625rem; font-weight: 700; color: var(--brand-orange);
  font-family: 'JetBrains Mono', monospace; flex-shrink: 0;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}
.pipeline-node.active > span:first-child { background: rgba(255,87,10,0.28); box-shadow: 0 0 14px rgba(255,87,10,0.45); }
.pipeline-node strong { font-size: 0.875rem; font-weight: 600; color: var(--text-primary); }
.pipeline-node small  { font-size: 0.6875rem; color: var(--text-muted); font-family: 'JetBrains Mono', monospace; }
.pipeline-line { width: 2px; height: 20px; background: linear-gradient(to bottom, var(--border-subtle), var(--border-subtle-mid)); margin: 0 0 0 1.5rem; border-radius: 2px; }
.pilot-snapshot { padding: 1.25rem; border-top: 1px solid var(--border-subtle); background: rgba(131,139,255,0.04); }
.snapshot-label { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--brand-purple); margin-bottom: 0.5rem; }
.pilot-snapshot h2 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 0.5rem; line-height: 1.35; }
.pilot-snapshot p  { font-size: 0.75rem; color: var(--text-muted); line-height: 1.6; }

/* ────────────────────────────────────────────────────────────
   10. PROBLEM
   ──────────────────────────────────────────────────────────── */
.problem { background: var(--bg-card); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.two-col h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
.body-copy p { font-size: 1rem; line-height: 1.75; }
.body-copy p + p { margin-top: 1rem; }

/* ────────────────────────────────────────────────────────────
   11. ENGINES / CARDS
   ──────────────────────────────────────────────────────────── */
.engines { background: var(--bg-root); }
.card-grid       { display: grid; gap: 1.25rem; }
.card-grid.three { grid-template-columns: repeat(3,1fr); }
.card-grid.four  { grid-template-columns: repeat(2,1fr); }

.feature-card {
  position: relative; background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card); box-shadow: var(--shadow-card-inset); padding: 1.75rem; overflow: hidden;
  transition: border-color var(--transition-slow), transform 0.35s cubic-bezier(0.34,1.56,0.64,1), box-shadow var(--transition-slow);
}
.feature-card::before {
  content: ''; position: absolute; inset: -1px; border-radius: inherit;
  background: radial-gradient(350px circle at var(--mouse-x,50%) var(--mouse-y,50%), rgba(131,139,255,0.14), transparent 40%);
  z-index: 0; opacity: 0; transition: opacity var(--transition-slow); pointer-events: none;
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover { border-color: rgba(131,139,255,0.4); transform: translateY(-6px) scale(1.01); box-shadow: var(--shadow-card-inset), 0 20px 60px rgba(0,0,0,0.45), 0 0 32px rgba(131,139,255,0.2); }
.feature-card-accent {
  border: 1px solid transparent;
  background: linear-gradient(var(--bg-card), rgba(131,139,255,0.05)) padding-box,
    conic-gradient(from var(--border-angle), rgba(131,139,255,0) 0%, rgba(131,139,255,0.8) 25%, rgba(131,139,255,0) 50%, rgba(255,87,10,0.6) 75%, rgba(131,139,255,0) 100%) border-box;
  animation: rotateBorder 5s linear infinite;
}
.feature-card-accent:hover { transform: translateY(-6px) scale(1.01); box-shadow: var(--shadow-card-inset), 0 20px 60px rgba(0,0,0,0.45), 0 0 40px rgba(131,139,255,0.25); }
.feature-card > * { position: relative; z-index: 1; }
.card-number { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.06em; color: var(--brand-orange); background: rgba(255,87,10,0.1); border: 1px solid rgba(255,87,10,0.2); border-radius: 4px; padding: 0.2rem 0.5rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.75rem; letter-spacing: -0.02em; }
.feature-card p  { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 1.25rem; }
.feature-card ul { display: flex; flex-direction: column; gap: 0.5rem; }
.feature-card li { display: flex; align-items: flex-start; gap: 0.625rem; font-size: 0.875rem; color: var(--text-secondary); line-height: 1.55; }
.feature-card li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--brand-purple); flex-shrink: 0; margin-top: 0.5rem; }

/* ────────────────────────────────────────────────────────────
   12. ARCHITECTURE
   ──────────────────────────────────────────────────────────── */
.architecture { background: var(--bg-card); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.architecture-grid { display: grid; grid-template-columns: 380px 1fr; gap: 5rem; align-items: start; }
.sticky-copy { position: sticky; top: 88px; }
.sticky-copy .section-kicker { margin-bottom: 0.875rem; }
.sticky-copy h2  { margin-bottom: 1rem; }
.sticky-copy > p { font-size: 0.9375rem; margin-bottom: 1.5rem; line-height: 1.75; }
.layer-stack { display: flex; flex-direction: column; gap: 1rem; }
.layer-card { background: var(--bg-root); border: 1px solid var(--border-subtle); border-left: 3px solid var(--brand-orange); border-radius: var(--radius-card); padding: 1.5rem 1.75rem; transition: border-color 0.3s ease, transform 0.35s cubic-bezier(0.34,1.56,0.64,1), box-shadow var(--transition-base); }
.layer-card:hover { border-color: rgba(255,87,10,0.55); border-left-color: var(--brand-orange); transform: translateX(6px); box-shadow: 0 4px 30px rgba(0,0,0,0.3), -4px 0 20px rgba(255,87,10,0.08); }
.layer-card > span { display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.08em; color: var(--text-muted); text-transform: uppercase; margin-bottom: 0.5rem; }
.layer-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; }
.layer-card p  { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.65; }

/* ────────────────────────────────────────────────────────────
   13. PILOT
   ──────────────────────────────────────────────────────────── */
.pilot { background: var(--bg-root); }
.pilot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.pilot-grid > div:first-child .section-kicker { margin-bottom: 0.875rem; }
.pilot-grid > div:first-child h2 { margin-bottom: 1rem; }
.pilot-grid > div:first-child > p { font-size: 0.9375rem; line-height: 1.75; }
.pilot-spec { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-card); box-shadow: var(--shadow-card-inset); padding: 2rem; }
.pilot-spec h3 { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; font-weight: 600; color: var(--brand-purple); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 1.25rem; }
.check-list { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1.5rem; }
.check-list li { display: flex; align-items: flex-start; gap: 0.75rem; font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.55; }
.check-list li::before { content: ''; width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid var(--brand-green); flex-shrink: 0; margin-top: 0.15rem; background-color: rgba(37,226,168,0.15); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2325E2A8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: center; background-size: 9px 9px; }
.spec-note { font-size: 0.8125rem; color: var(--text-muted); font-style: italic; line-height: 1.65; padding-top: 1.25rem; border-top: 1px solid var(--border-subtle); }

/* ────────────────────────────────────────────────────────────
   14. DEMO SECTION
   ──────────────────────────────────────────────────────────── */
.demo { background: var(--bg-card); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); position: relative; overflow: hidden; }
.demo::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 700px; height: 400px; background: radial-gradient(ellipse at 50% 50%, rgba(131,139,255,0.07), transparent 70%); pointer-events: none; animation: glowPulse 8s ease-in-out infinite; }
.demo-panel { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--border-subtle); border-radius: var(--radius-card-lg); background: var(--bg-root); box-shadow: var(--shadow-card-inset), 0 32px 80px rgba(0,0,0,0.5); overflow: hidden; position: relative; z-index: 1; }
.demo-panel-header { grid-column: 1/-1; display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.25rem; background: var(--bg-elevated); border-bottom: 1px solid var(--border-subtle); }
.demo-panel-header .dot { width: 10px; height: 10px; border-radius: 50%; }
.demo-panel-header .dot-red    { background: #FF5F57; }
.demo-panel-header .dot-yellow { background: #FEBC2E; }
.demo-panel-header .dot-green  { background: #28C840; }
.demo-panel-header-title { flex: 1; text-align: center; font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--text-muted); letter-spacing: 0.04em; }
.demo-pane { padding: 1.5rem; display: flex; flex-direction: column; gap: 0.875rem; }
.demo-pane-label { font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.2rem 0.5rem; border-radius: 4px; width: fit-content; margin-bottom: 0.25rem; }
.demo-pane-label.input  { color: var(--text-muted); background: rgba(255,255,255,0.05); border: 1px solid var(--border-subtle); }
.demo-pane-label.output { color: var(--brand-green); background: rgba(37,226,168,0.1); border: 1px solid rgba(37,226,168,0.25); }
.demo-pane.output-pane { border-left: 1px solid var(--border-subtle); }
.demo-prose { font-family: 'JetBrains Mono', monospace; font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.8; }
.demo-prose .scene-head { color: var(--text-primary); font-weight: 700; display: block; margin-bottom: 0.25rem; }
.demo-prose .character  { color: var(--brand-orange); display: block; margin-top: 0.875rem; }
.demo-prose .dialogue   { color: var(--text-secondary); display: block; padding-left: 1.5rem; }
.demo-prose .action     { color: var(--text-muted); font-style: italic; display: block; margin-top: 0.5rem; }
.demo-prose .action:last-child::after { content: '▌'; color: var(--brand-purple); animation: blink 1.1s step-end infinite; margin-left: 2px; }
.demo-output-row { display: flex; align-items: flex-start; gap: 0.625rem; font-size: 0.8125rem; color: var(--text-secondary); font-family: 'JetBrains Mono', monospace; line-height: 1.5; }
.demo-output-row .check-icon { color: var(--brand-green); flex-shrink: 0; font-style: normal; }
.demo-output-row .pending { color: var(--brand-orange); animation: blink 1.4s step-end infinite; }
.demo-output-row strong { color: var(--text-primary); font-weight: 600; }
.demo-divider { height: 1px; background: var(--border-subtle); margin: 0.5rem 0; }
.demo-cta-row { grid-column: 1/-1; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.25rem 1.5rem; border-top: 1px solid var(--border-subtle); background: rgba(131,139,255,0.04); flex-wrap: wrap; }
.demo-cta-note { font-size: 0.875rem; color: var(--text-secondary); }
.demo-cta-note strong { color: var(--text-primary); }

/* ────────────────────────────────────────────────────────────
   15. FIT
   ──────────────────────────────────────────────────────────── */
.fit { background: var(--bg-root); border-top: 1px solid var(--border-subtle); }
.fit .section-heading { margin-inline: auto; }
.fit-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem; }
.fit-item { background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-card); padding: 1.75rem; position: relative; overflow: hidden; transition: border-color var(--transition-base), transform 0.35s cubic-bezier(0.34,1.56,0.64,1); }
.fit-item::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--brand-orange-light), var(--brand-orange)); transform: scaleX(0); transform-origin: left; transition: transform var(--transition-slow); }
.fit-item:hover::after { transform: scaleX(1); }
.fit-item:hover { border-color: rgba(255,87,10,0.28); transform: translateY(-4px); }
.fit-item h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.625rem; }
.fit-item p  { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.65; }

/* ────────────────────────────────────────────────────────────
   STORY OF LIFE
   ──────────────────────────────────────────────────────────── */
.sol { background: var(--bg-card); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); position: relative; overflow: hidden; }
.sol::before {
  content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 800px; height: 500px;
  background: radial-gradient(ellipse at 50% 50%, rgba(255,87,10,0.06), transparent 70%);
  pointer-events: none;
}

.sol-header { max-width: 680px; margin-bottom: 2.5rem; }
.sol-header h2 { margin-bottom: 1rem; }
.sol-intro-text { font-size: 1.0625rem; color: var(--text-secondary); line-height: 1.75; }

/* Full-width image */
.sol-figure {
  position: relative; border-radius: var(--radius-card-lg); overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card-inset), 0 32px 80px rgba(0,0,0,0.5);
  margin-bottom: 3rem;
}
.sol-figure img {
  width: 100%; height: auto; display: block; max-height: 480px;
  object-fit: cover; object-position: center 30%;
  filter: brightness(0.88) saturate(1.1);
  transition: transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
.sol-figure:hover img { transform: scale(1.02); }
.sol-figure figcaption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
  color: rgba(255,255,255,0.65); letter-spacing: 0.05em; text-align: center;
}

/* 4-step pipeline */
.sol-pipeline {
  display: flex; align-items: flex-start; gap: 0;
  background: var(--bg-root); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card-lg); overflow: hidden;
  box-shadow: var(--shadow-card-inset);
  margin-bottom: 2.5rem;
}
.sol-step {
  flex: 1; padding: 1.75rem 1.5rem;
  display: flex; flex-direction: column; gap: 0.875rem;
  border-right: 1px solid var(--border-subtle);
  transition: background var(--transition-base);
}
.sol-step:last-child { border-right: none; }
.sol-step:hover { background: var(--bg-elevated); }
.sol-step-highlight { background: rgba(255,87,10,0.03); }
.sol-step-highlight:hover { background: rgba(255,87,10,0.07); }
.sol-step-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: rgba(255,87,10,0.1); border: 1px solid rgba(255,87,10,0.22);
  border-radius: 8px; flex-shrink: 0;
}
.sol-step-icon span {
  font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem;
  font-weight: 700; color: var(--brand-orange); letter-spacing: 0.02em;
}
.sol-step-highlight .sol-step-icon {
  background: rgba(255,87,10,0.18); border-color: rgba(255,87,10,0.4);
  box-shadow: 0 0 14px rgba(255,87,10,0.3);
}
.sol-step-body h3 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 0.375rem; }
.sol-step-body p  { font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.65; }

/* Connector arrows between steps */
.sol-connector {
  display: flex; align-items: center; justify-content: center;
  padding: 0 0.125rem; color: var(--text-muted); flex-shrink: 0; margin-top: 1.75rem;
}

/* CTA below pipeline */
.sol-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding: 1.5rem 2rem;
  background: rgba(131,139,255,0.04); border: 1px solid rgba(131,139,255,0.15);
  border-radius: var(--radius-card-lg); flex-wrap: wrap;
}
.sol-cta p { font-size: 1rem; color: var(--text-secondary); font-weight: 500; }
.sol-cta strong { color: var(--text-primary); }

/* Light mode */
html[data-theme="light"] .sol-figure     { box-shadow: inset 0 1px 0 rgba(0,0,0,0.04), 0 32px 80px rgba(0,0,0,0.1); }
html[data-theme="light"] .sol-figure img { filter: brightness(0.9) saturate(1); }
html[data-theme="light"] .sol::before    { background: radial-gradient(ellipse at 50% 50%, rgba(255,87,10,0.05), transparent 70%); }



/* ────────────────────────────────────────────────────────────
   16. CONTACT / FORM
   ──────────────────────────────────────────────────────────── */
.contact { background: var(--bg-card); border-top: 1px solid var(--border-subtle); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.contact-grid > div:first-child .section-kicker { margin-bottom: 0.875rem; }
.contact-grid > div:first-child h2 { margin-bottom: 1rem; }
.contact-grid > div:first-child > p { font-size: 0.9375rem; line-height: 1.75; margin-bottom: 1.5rem; }
.contact-card { display: flex; align-items: center; gap: 0.75rem; padding: 0.875rem 1.25rem; background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-card); font-size: 0.875rem; flex-wrap: wrap; }
.contact-card strong { color: var(--text-secondary); font-weight: 500; }
.contact-card a { color: var(--brand-purple); font-weight: 500; transition: opacity var(--transition-fast); }
.contact-card a:hover { opacity: 0.8; }
.pilot-form { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; background: var(--bg-root); border: 1px solid var(--border-subtle); border-radius: var(--radius-card-lg); box-shadow: var(--shadow-card-inset); padding: 2rem; }
.pilot-form label { display: flex; flex-direction: column; gap: 0.375rem; font-size: 0.8125rem; font-weight: 500; color: var(--text-secondary); }
.pilot-form .full-span { grid-column: 1/-1; }
.pilot-form input, .pilot-form select, .pilot-form textarea { width: 100%; background: var(--bg-elevated); border: 1px solid var(--border-subtle); border-radius: var(--radius-btn); padding: 0.625rem 0.875rem; font-size: 0.9375rem; font-family: inherit; color: var(--text-primary); outline: none; transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast); -webkit-appearance: none; appearance: none; }
.pilot-form input::placeholder, .pilot-form textarea::placeholder { color: var(--text-muted); }
.pilot-form input:focus, .pilot-form select:focus, .pilot-form textarea:focus { border-color: var(--brand-purple); background: var(--bg-muted); box-shadow: 0 0 0 3px rgba(131,139,255,0.15); }
.pilot-form select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.75rem center; padding-right: 2.25rem; cursor: pointer; }
.pilot-form select option { background: var(--bg-elevated); color: var(--text-primary); }
.pilot-form textarea { resize: vertical; min-height: 120px; line-height: 1.6; }
.pilot-form .button-primary { padding: 0.875rem 1.5rem; font-size: 1rem; }
.form-status { margin-top: 0.25rem; padding: 0.75rem 1rem; border-radius: var(--radius-btn); font-size: 0.875rem; font-weight: 500; }
.form-status.is-ok { background: rgba(37,226,168,0.12); border: 1px solid rgba(37,226,168,0.35); color: var(--brand-green); }
.form-status.is-err { background: rgba(255,87,10,0.12); border: 1px solid rgba(255,87,10,0.35); color: var(--brand-orange); }

/* ────────────────────────────────────────────────────────────
   17. FOOTER
   ──────────────────────────────────────────────────────────── */
.site-footer { background: var(--bg-card); border-top: 1px solid var(--border-divider); padding-block: 2.5rem; }
.footer-grid { display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.footer-brand { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.9375rem; font-weight: 700; margin-bottom: 0.5rem; }
.site-footer > .container > div:first-child p { font-size: 0.8125rem; color: var(--text-muted); line-height: 1.6; max-width: 480px; }
.footer-links { display: flex; align-items: center; gap: 0.25rem; flex-wrap: wrap; }
.footer-links a { font-size: 0.875rem; color: var(--text-muted); padding: 0.375rem 0.75rem; border-radius: var(--radius-btn); font-weight: 500; transition: color var(--transition-fast), background var(--transition-fast); }
.footer-links a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }

/* ────────────────────────────────────────────────────────────
   18. KEYFRAMES & SCROLL REVEAL
   ──────────────────────────────────────────────────────────── */
@keyframes rotateBorder { to { --border-angle: 360deg; } }
@keyframes float        { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes shimmer      { 0%{background-position:0% center} 100%{background-position:300% center} }
@keyframes glowPulse    { 0%,100%{transform:translateX(-50%) scale(1)} 50%{transform:translateX(-50%) scale(1.14)} }
@keyframes glowBreath   { 0%,100%{box-shadow:0 0 12px rgba(255,87,10,0.4)} 50%{box-shadow:0 0 28px rgba(255,87,10,0.75),0 0 48px rgba(255,87,10,0.2)} }
@keyframes pulse        { 0%,100%{box-shadow:0 0 0 0 rgba(25,213,158,0.7)} 70%{box-shadow:0 0 0 6px rgba(25,213,158,0)} }
@keyframes blink        { 0%,100%{opacity:1} 50%{opacity:0} }

.js [data-animate]             { opacity:0; transform:translateY(24px); transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22,1,0.36,1); }
.js [data-animate].in-view     { opacity:1; transform:translateY(0); }
.js [data-animate-stagger] > * { opacity:0; transform:translateY(20px); transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.22,1,0.36,1); }
.js [data-animate-stagger].in-view > *:nth-child(1) { opacity:1; transform:none; transition-delay:0.05s; }
.js [data-animate-stagger].in-view > *:nth-child(2) { opacity:1; transform:none; transition-delay:0.15s; }
.js [data-animate-stagger].in-view > *:nth-child(3) { opacity:1; transform:none; transition-delay:0.25s; }
.js [data-animate-stagger].in-view > *:nth-child(4) { opacity:1; transform:none; transition-delay:0.35s; }

/* ────────────────────────────────────────────────────────────
   19. LIGHT MODE
   ──────────────────────────────────────────────────────────── */
html[data-theme="light"] {
  --bg-root:           #F7F8FC;
  --bg-card:           #FFFFFF;
  --bg-elevated:       #EEF0F8;
  --bg-muted:          #E2E5F2;
  --brand-purple:      #5B63E6;
  --brand-green:       #0D9E71;
  --border-subtle:     rgba(0,0,0,0.07);
  --border-subtle-mid: rgba(0,0,0,0.11);
  --border-divider:    #CDD2E8;
  --text-primary:      #08090F;
  --text-secondary:    #3D4663;
  --text-muted:        #64708D;
  --shadow-card-inset: inset 0 1px 0 0 rgba(0,0,0,0.05);
  --shadow-orange-glow: 0 0 20px rgba(255,87,10,0.22);
  --shadow-purple-glow: 0 0 20px rgba(91,99,230,0.18);
}

/* Nav */
html[data-theme="light"] .site-header::before { background: rgba(247,248,252,0.94); }
html[data-theme="light"] .site-header.is-open::before,
html[data-theme="light"].mobile-nav-open .site-header::before { background: #F7F8FC; }
html[data-theme="light"] .nav-overlay   { background-color: #F7F8FC; box-shadow: 0 24px 48px rgba(0,0,0,0.16); }
html[data-theme="light"] .nav-links a:hover { background: rgba(0,0,0,0.04); }
html[data-theme="light"] .nav-icon-btn  { background: rgba(0,0,0,0.03); }
html[data-theme="light"] .nav-icon-btn:hover { background: rgba(0,0,0,0.06); border-color: rgba(0,0,0,0.14); }
html[data-theme="light"] .nav-icon-btn.is-active { background: rgba(91,99,230,0.1); }
html[data-theme="light"] .nav-toggle    { background: rgba(0,0,0,0.03); }
html[data-theme="light"] .button-secondary { background: rgba(0,0,0,0.04); color: var(--text-primary); border-color: var(--border-divider); }
html[data-theme="light"] .button-secondary:hover { background: rgba(0,0,0,0.08); border-color: rgba(0,0,0,0.22); color: var(--text-primary); box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
html[data-theme="light"] .footer-links a:hover { background: rgba(0,0,0,0.04); }

/* Hero */
html[data-theme="light"] .bg-grid-pattern {
  background-image: linear-gradient(to right, rgba(0,0,0,0.05) 1px, transparent 1px), linear-gradient(to bottom, rgba(0,0,0,0.05) 1px, transparent 1px);
}
html[data-theme="light"] .hero-glow-purple { background: radial-gradient(ellipse 60% 45% at 50% 50%, rgba(131,139,255,0.22), transparent 72%); }
html[data-theme="light"] .hero-glow-orange { background: radial-gradient(circle at 50% 50%, rgba(255,87,10,0.12), transparent 65%); }
html[data-theme="light"] .gradient-text {
  background: linear-gradient(135deg, #1A1A40 0%, var(--brand-purple) 35%, #1A1A40 55%, var(--brand-purple) 80%, #1A1A40 100%);
  background-size: 300% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
html[data-theme="light"] canvas[aria-hidden] { opacity: 0.55; }
html[data-theme="light"] .hero-panel  { box-shadow: inset 0 1px 0 0 rgba(0,0,0,0.04), 0 24px 64px rgba(0,0,0,0.1); }
html[data-theme="light"] .pilot-snapshot { background: rgba(131,139,255,0.07); }

/* Cards */
html[data-theme="light"] .feature-card:hover { box-shadow: var(--shadow-card-inset), 0 20px 60px rgba(0,0,0,0.1), 0 0 24px rgba(131,139,255,0.15); }
html[data-theme="light"] .feature-card-accent {
  background: linear-gradient(#FFFFFF, rgba(131,139,255,0.03)) padding-box,
    conic-gradient(from var(--border-angle), rgba(131,139,255,0) 0%, rgba(131,139,255,0.7) 25%, rgba(131,139,255,0) 50%, rgba(255,87,10,0.5) 75%, rgba(131,139,255,0) 100%) border-box;
}

/* Sections */
html[data-theme="light"] .layer-card:hover { box-shadow: 0 4px 30px rgba(0,0,0,0.08), -4px 0 20px rgba(255,87,10,0.05); }
html[data-theme="light"] .demo::before    { background: radial-gradient(ellipse at 50% 50%, rgba(131,139,255,0.09), transparent 70%); }
html[data-theme="light"] .demo-panel      { box-shadow: inset 0 1px 0 0 rgba(0,0,0,0.04), 0 32px 80px rgba(0,0,0,0.1); }
html[data-theme="light"] .demo-pane-label.input { background: rgba(0,0,0,0.04); }
html[data-theme="light"] .a11y-panel-close:hover { background: rgba(0,0,0,0.06); }

/* ────────────────────────────────────────────────────────────
   20. ACCESSIBILITY — COLOR VISION & MOTION
   ──────────────────────────────────────────────────────────── */
html.cb-protanopia   { filter: url('#cb-protanopia'); }
html.cb-deuteranopia { filter: url('#cb-deuteranopia'); }
html.cb-tritanopia   { filter: url('#cb-tritanopia'); }
html.cb-grayscale    { filter: grayscale(100%); }

html.reduce-motion *,
html.reduce-motion *::before,
html.reduce-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
  scroll-behavior: auto !important;
}
html.reduce-motion [data-animate],
html.reduce-motion [data-animate-stagger] > *,
html.reduce-motion .output-pane .demo-output-row,
html.reduce-motion .output-pane .demo-divider {
  opacity: 1 !important;
  transform: none !important;
}

/* ────────────────────────────────────────────────────────────
   PULL QUOTE & BODY COPY EXTRAS
   ──────────────────────────────────────────────────────────── */
.pull-quote {
  border-left: 3px solid var(--brand-orange);
  padding: 0.875rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 1.0625rem; font-weight: 600;
  color: var(--text-primary); line-height: 1.5;
  background: rgba(255,87,10,0.05);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
}

/* ────────────────────────────────────────────────────────────
   ARCHITECTURE EXTRAS (bidir flow, arch-subline)
   ──────────────────────────────────────────────────────────── */
.arch-subline {
  font-size: 0.9375rem; font-style: italic;
  color: var(--text-muted); margin-top: 1rem; margin-bottom: 1.25rem;
}
.bidir-flow {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 0.25rem;
  margin: 3rem 0 1rem;
  padding: 1.75rem 2rem;
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card-lg);
}
.bidir-node {
  padding: 0.5rem 1rem;
  background: var(--bg-elevated); border: 1px solid var(--border-divider);
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; font-weight: 500;
  color: var(--text-secondary); white-space: nowrap;
  transition: border-color var(--transition-base), color var(--transition-base);
}
.bidir-node:hover { border-color: var(--brand-purple); color: var(--text-primary); }
.bidir-node-accent { border-color: rgba(255,87,10,0.4); color: var(--brand-orange); }
.bidir-arrow { font-size: 1.125rem; color: var(--brand-purple); opacity: 0.7; padding: 0 0.125rem; }
.bidir-caption { text-align: center; font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 0; }

/* ────────────────────────────────────────────────────────────
   REVISION / CHANGE PROPAGATION SECTION
   ──────────────────────────────────────────────────────────── */
.revision { background: var(--bg-root); border-top: 1px solid var(--border-subtle); }
.revision-core-line {
  font-size: 1rem; font-weight: 600; font-style: italic;
  color: var(--brand-orange); margin-top: 1.25rem;
  border-left: 2px solid var(--brand-orange); padding-left: 0.875rem;
}
.revision-panel {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card-inset);
}
.revision-panel-header {
  display: flex; align-items: center; gap: 0.625rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem;
  font-weight: 500; color: var(--text-muted); letter-spacing: 0.04em;
  background: var(--bg-elevated);
}
.revision-row {
  display: flex; align-items: center; gap: 0.875rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle); font-size: 0.8125rem;
}
.revision-row:last-child { border-bottom: none; }
.revision-icon { font-size: 0.875rem; width: 1.25rem; text-align: center; flex-shrink: 0; }
.revision-affected { background: rgba(255,87,10,0.03); }
.revision-affected .revision-icon { color: var(--brand-orange); }
.revision-preserved .revision-icon.revision-ok { color: var(--brand-green); }
.revision-preserved { color: var(--text-secondary); }
.revision-preserved strong { color: var(--text-primary); }
.revision-affected strong { color: var(--text-primary); }
.revision-divider { height: 1px; background: var(--border-divider); margin: 0.25rem 0; }

/* ────────────────────────────────────────────────────────────
   MODEL LAYER SECTION
   ──────────────────────────────────────────────────────────── */
.model-layer { background: var(--bg-card); border-top: 1px solid var(--border-subtle); }
.model-stack { max-width: 800px; margin: 2rem auto; }
.model-layer-top {
  background: rgba(131,139,255,0.06); border: 1px solid rgba(131,139,255,0.25);
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  padding: 1.5rem 2rem; text-align: center;
}
.model-layer-label { font-size: 1rem; font-weight: 700; color: var(--brand-purple); margin-bottom: 0.375rem; }
.model-layer-sublabel { font-size: 0.75rem; color: var(--text-muted); line-height: 1.6; }
.model-layer-divider {
  text-align: center; padding: 0.875rem 0;
  border-left: 1px dashed var(--border-divider); border-right: 1px dashed var(--border-divider);
  font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem;
  color: var(--text-muted); letter-spacing: 0.04em;
}
.model-layer-bottom {
  display: flex; flex-wrap: wrap; gap: 0.625rem; justify-content: center;
  padding: 1.25rem 2rem;
  background: var(--bg-elevated); border: 1px solid var(--border-subtle);
  border-radius: 0 0 var(--radius-card) var(--radius-card);
}
.model-chip {
  padding: 0.375rem 0.875rem;
  background: var(--bg-card); border: 1px solid var(--border-divider);
  border-radius: 100px;
  font-size: 0.75rem; color: var(--text-secondary);
  transition: border-color var(--transition-base), color var(--transition-base);
}
.model-chip:hover { border-color: var(--brand-orange); color: var(--text-primary); }
.model-investor-line {
  text-align: center; font-size: 1rem;
  color: var(--text-secondary); margin-top: 2rem;
}
.model-investor-line strong { color: var(--text-primary); }

/* ────────────────────────────────────────────────────────────
   FOUNDER SECTION
   ──────────────────────────────────────────────────────────── */
.founder { background: var(--bg-root); border-top: 1px solid var(--border-subtle); }
.founder-quote {
  font-size: 1.125rem; font-weight: 500; font-style: italic;
  color: var(--text-primary); line-height: 1.6;
  border-left: 3px solid var(--brand-purple);
  padding: 1rem 1.5rem;
  margin: 0 0 1.5rem;
  background: rgba(131,139,255,0.05);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
}

/* ────────────────────────────────────────────────────────────
   PILOT TWO-COL (now vs roadmap)
   ──────────────────────────────────────────────────────────── */
.pilot-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 1.75rem; }
.pilot-col-head { font-size: 0.875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--brand-green); margin-bottom: 0.875rem; }
.pilot-col-head-roadmap { color: var(--text-muted); }
.check-list-roadmap li::before { content: '→'; }
.check-list-roadmap { color: var(--text-muted); }

/* ────────────────────────────────────────────────────────────
   SOUNDWRIGHT CARD EXTRAS
   ──────────────────────────────────────────────────────────── */
.soundwright-badge {
  display: inline-flex; align-items: center;
  padding: 0.2rem 0.625rem;
  background: rgba(255,87,10,0.15); border: 1px solid rgba(255,87,10,0.35);
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.06em;
  color: var(--brand-orange);
  margin-bottom: 0.625rem;
}
.card-thesis {
  font-size: 1rem; font-weight: 700; font-style: italic;
  color: var(--brand-orange); margin-bottom: 0.5rem;
}
.two-doors {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem;
  margin: 1.25rem 0;
}
.door {
  padding: 0.875rem 1rem;
  border-radius: 8px;
  font-size: 0.8125rem; line-height: 1.5;
}
.door p { max-width: none; color: var(--text-secondary); margin-top: 0.375rem; }
.door p strong { color: var(--brand-green); }
.door-label {
  display: block; font-size: 0.6875rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.25rem;
}
.door-forward {
  background: rgba(131,139,255,0.08); border: 1px solid rgba(131,139,255,0.2);
}
.door-forward .door-label { color: var(--brand-purple); }
.door-reverse {
  background: rgba(255,87,10,0.06); border: 1px solid rgba(255,87,10,0.2);
}
.door-reverse .door-label { color: var(--brand-orange); }

/* Responsive: two-doors stacks on mobile */
@media (max-width: 520px) {
  .two-doors { grid-template-columns: 1fr; }
}

/* ────────────────────────────────────────────────────────────
   22. IMAGE COMPONENTS
   ──────────────────────────────────────────────────────────── */

/* Engine card visual header */
.card-visual {
  width: calc(100% + 3.5rem);
  margin: -1.75rem -1.75rem 1.25rem;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  overflow: hidden;
  aspect-ratio: 16 / 7;
  position: relative;
  z-index: 1;
}
.card-visual img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22,1,0.36,1), filter 0.4s ease;
  filter: brightness(0.88) saturate(1.1);
}
.feature-card:hover .card-visual img {
  transform: scale(1.04);
  filter: brightness(1) saturate(1.25);
}

/* Hero feature image strip */
.hero-feature-strip {
  position: relative; overflow: hidden;
  width: 100%; max-height: 460px;
}
.hero-feature-strip img {
  width: 100%; height: auto; display: block;
  object-fit: cover; max-height: 460px;
  filter: brightness(0.82) saturate(1.1);
}
.hero-feature-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    to bottom,
    var(--bg-root) 0%,
    transparent 18%,
    transparent 75%,
    var(--bg-card) 100%
  );
  pointer-events: none;
}

/* Storyboard figure in demo section */
.storyboard-figure {
  margin-bottom: 2.5rem;
  border-radius: var(--radius-card-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card-inset), 0 24px 64px rgba(0,0,0,0.5);
  position: relative;
}
.storyboard-figure img {
  width: 100%; height: auto; display: block;
  object-fit: cover;
  filter: brightness(0.9) contrast(1.05);
  transition: transform 0.6s cubic-bezier(0.22,1,0.36,1), filter 0.4s ease;
}
.storyboard-figure:hover img {
  transform: scale(1.01);
  filter: brightness(1) contrast(1.05);
}
.storyboard-figure figcaption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 1rem 1.5rem;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 100%);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem; font-weight: 500;
  letter-spacing: 0.06em; color: rgba(255,255,255,0.6);
  text-align: center;
}

/* Light mode image adjustments */
html[data-theme="light"] .card-visual img       { filter: brightness(1) saturate(0.95); }
html[data-theme="light"] .hero-feature-overlay  {
  background: linear-gradient(
    to bottom, var(--bg-root) 0%, transparent 18%, transparent 75%, var(--bg-card) 100%
  );
}
html[data-theme="light"] .storyboard-figure img { filter: brightness(0.95) contrast(1.02); }
html[data-theme="light"] .storyboard-figure     { box-shadow: inset 0 1px 0 rgba(0,0,0,0.04), 0 24px 64px rgba(0,0,0,0.12); }
html[data-theme="light"] .hero-feature-strip img { filter: brightness(0.75) saturate(0.9); }

/* ────────────────────────────────────────────────────────────
   HUMAN CONTROL (HANDS-LIGHT TO HANDS-ON)
   ──────────────────────────────────────────────────────────── */
.human-control { background: var(--bg-root); border-top: 1px solid var(--border-subtle); }
.control-mode-tag {
  display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 0.6875rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--brand-purple);
  background: rgba(131,139,255,0.12); border: 1px solid rgba(131,139,255,0.26);
  border-radius: 4px; padding: 0.2rem 0.55rem; margin-bottom: 0.875rem;
}
.control-mode-tag-accent {
  color: var(--brand-orange); background: rgba(255,87,10,0.1); border-color: rgba(255,87,10,0.24);
}
.control-mode-tag-rule {
  color: var(--brand-green); background: rgba(37,226,168,0.1); border-color: rgba(37,226,168,0.24);
}
.control-quote {
  font-size: 0.9375rem; font-weight: 600; color: var(--text-primary) !important;
  margin-bottom: 0.75rem !important; line-height: 1.5 !important;
}
.control-pilot-bar {
  margin-top: 1.5rem; padding: 1.25rem 1.75rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; flex-wrap: wrap;
  background: var(--bg-card); border: 1px solid var(--border-subtle); border-left: 3px solid var(--brand-orange);
  border-radius: var(--radius-card);
}
.control-pilot-bar p { margin: 0; font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; max-width: 720px; }
.control-pilot-bar p strong { color: var(--text-primary); }
@media (max-width: 640px) {
  .control-pilot-bar { padding: 1.125rem 1.25rem; flex-direction: column; align-items: stretch; }
  .control-pilot-bar .button { width: 100%; }
}

/* ────────────────────────────────────────────────────────────
   21. RESPONSIVE
   ──────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .js [data-animate], .js [data-animate-stagger] > * { opacity:1; transform:none; }
  .hero-panel, .hero-glow-purple, .hero-glow-orange, .brand-mark, .gradient-text,
  .demo::before, .feature-card-accent { animation: none !important; }
}

/* Prevent grid tracks from exceeding viewport width */
.hero-grid > *,
.two-col > *,
.card-grid > *,
.architecture-grid > *,
.pilot-grid > *,
.pilot-two-col > *,
.demo-panel > *,
.fit-grid > *,
.contact-grid > *,
.pilot-form > *,
.two-doors > * {
  min-width: 0;
}

@media (max-width: 1100px) {
  .hero-grid         { grid-template-columns: 1fr 360px; gap: 2.5rem; }
  .architecture-grid { grid-template-columns: 300px 1fr; gap: 3.5rem; }
  .stats-row         { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-row > div   { padding: 0.625rem 0.75rem; border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .stats-row > div:nth-child(odd)       { border-right: 1px solid var(--border-subtle); padding-left: 0; }
  .stats-row > div:nth-child(even)      { padding-right: 0; }
  .stats-row > div:nth-last-child(-n+2) { border-bottom: none; }
}
@media (max-width: 1024px) {
  .nav-links      { display: none; }
  .nav-controls   { border-left: none; padding-left: 0; margin-left: 0; }
  .nav-toggle     { display: flex; }
  html.mobile-nav-open main,
  html.mobile-nav-open footer { pointer-events: none; }
}
@media (max-width: 900px) {
  .hero-grid        { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-glow-orange { display: none; }
  .hero-panel       { animation: none; }
  .card-grid.three,
  .card-grid.four   { grid-template-columns: 1fr; }
  .architecture-grid{ grid-template-columns: 1fr; gap: 2.5rem; }
  .sticky-copy      { position: static; }
  .two-col          { grid-template-columns: 1fr; gap: 2rem; }
  .pilot-grid       { grid-template-columns: 1fr; gap: 2.5rem; }
  .pilot-two-col    { grid-template-columns: 1fr; gap: 1.5rem; }
  .contact-grid     { grid-template-columns: 1fr; gap: 2.5rem; }
  .fit-grid         { grid-template-columns: 1fr 1fr; }
  .demo-panel       { grid-template-columns: 1fr; }
  .demo-pane.output-pane { border-left: none; border-top: 1px solid var(--border-subtle); }
  /* Story of Life pipeline stacks vertically */
  .sol-pipeline     { flex-direction: column; }
  .sol-step         { border-right: none; border-bottom: 1px solid var(--border-subtle); width: 100%; }
  .sol-step:last-child { border-bottom: none; }
  .sol-connector    { transform: rotate(90deg); margin: 0; padding: 0.25rem 0; align-self: flex-start; margin-left: 1.5rem; }
}
@media (max-width: 640px) {
  .container      { padding-inline: 1.125rem; }
  .nav-overlay    { padding: 0.5rem 1.125rem 3rem; }
  .nav-wrap       { gap: 0.75rem; }
  .section-pad    { padding-block: 56px; }
  .section-pad-sm { padding-block: 44px; }
  .hero           { padding-block: 32px 44px; }
  .hero-copy .eyebrow { font-size: 0.6875rem; padding: 0.3rem 0.75rem; max-width: 100%; white-space: normal; margin-bottom: 1rem; }
  .hero-copy .tagline { font-size: 1rem; margin-bottom: 0.875rem; }
  .hero-lede      { font-size: 0.9375rem; line-height: 1.65; margin-bottom: 1.375rem; }
  .button         { white-space: normal; text-align: center; line-height: 1.25; padding: 0.75rem 1.125rem; }
  .card-grid.three,
  .card-grid.four { grid-template-columns: 1fr; }
  .feature-card   { padding: 1.25rem; }
  .feature-card:hover,
  .feature-card-accent:hover { transform: none; }
  .card-visual    { width: calc(100% + 2.5rem); margin: -1.25rem -1.25rem 1rem; }
  .two-doors      { grid-template-columns: 1fr; }
  .fit-grid       { grid-template-columns: 1fr; }
  .hero-actions   { flex-direction: column; align-items: stretch; gap: 0.75rem; margin-bottom: 1.5rem; }
  .hero-actions .button { justify-content: center; width: 100%; }
  .stats-row      { padding-top: 1.125rem; }
  .stats-row > div { padding: 0.625rem 0.625rem; }
  .stats-row > div:nth-child(odd)  { padding-left: 0; }
  .stats-row > div:nth-child(even) { padding-right: 0; }
  .stats-row dt   { font-size: 0.875rem; }
  .panel-topline,
  .revision-panel-header { flex-wrap: wrap; padding: 0.75rem 1rem; word-break: break-word; }
  .pipeline-card,
  .pilot-snapshot { padding: 1rem; }
  .layer-card     { padding: 1.25rem; }
  .layer-card:hover { transform: none; }
  .bidir-flow     { padding: 1.125rem 0.875rem; gap: 0.375rem; }
  .bidir-node     { padding: 0.375rem 0.625rem; font-size: 0.6875rem; }
  .revision-row   { padding: 0.625rem 1rem; align-items: flex-start; }
  .model-layer-top,
  .model-layer-bottom { padding: 1.125rem 1rem; }
  .pilot-spec     { padding: 1.25rem; }
  .demo-panel-header { padding: 0.625rem 1rem; }
  .demo-panel-header-title { font-size: 0.6875rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .demo-pane      { padding: 1.125rem; }
  .demo-prose     { font-size: 0.75rem; overflow-wrap: anywhere; }
  .demo-prose .dialogue { padding-left: 0.75rem; }
  .demo-cta-row   { flex-direction: column; align-items: stretch; padding: 1rem 1.125rem; }
  .demo-cta-row .button,
  .sol-cta .button { width: 100%; }
  .sol-cta        { padding: 1.25rem; }
  .sol-figure figcaption,
  .storyboard-figure figcaption { position: static; background: var(--bg-elevated); color: var(--text-muted); padding: 0.625rem 1rem; }
  .pilot-form     { grid-template-columns: 1fr; padding: 1.25rem; }
  .pilot-form .full-span { grid-column: 1; }
  .pilot-form input,
  .pilot-form select,
  .pilot-form textarea { font-size: 1rem; min-width: 0; max-width: 100%; }
  .footer-grid    { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
  .a11y-panel     { right: 0.75rem; left: 0.75rem; width: auto; top: calc(100% + 6px); }
}
@media (max-width: 400px) {
  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.45rem; }
  .container { padding-inline: 0.9375rem; }
  .nav-overlay { padding-inline: 0.9375rem; }
  .stats-row dt { font-size: 0.8125rem; }
}