/* ═══════════════════════════════════════
   PRISM — CSS THEME
   Deep space violet + spectrum accents
   Crimson Pro + IBM Plex Sans + IBM Plex Mono
   ═══════════════════════════════════════ */

:root {
  --bg-primary: #0d0b1a;
  --bg-secondary: #13112a;
  --bg-card: #1a1735;
  --fg-primary: #f0ecff;
  --fg-secondary: #9d96c8;
  --fg-muted: #5e5878;
  --accent-violet: #7c3aed;
  --accent-cyan: #00d4ff;
  --accent-fuchsia: #f0abfc;
  --accent-red: #fb7185;
  --accent-orange: #fb923c;
  --accent-yellow: #fbbf24;
  --accent-green: #4ade80;
  --accent-blue: #60a5fa;
  --accent-indigo: #818cf8;
  --border-subtle: rgba(148, 134, 196, 0.12);
  --border-accent: rgba(0, 212, 255, 0.15);
  --font-display: 'Crimson Pro', Georgia, serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── Navigation ─────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 2rem;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(13, 11, 26, 0.85);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--fg-primary);
}
.nav-tagline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ─── Shared ─────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
}

/* ─── Hero ───────────────────────── */
.hero {
  min-height: calc(100vh - 56px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 2rem 3rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.12) 0%, transparent 65%);
  pointer-events: none;
}
.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--fg-secondary);
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 6vw, 5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.75rem;
  background: linear-gradient(135deg, var(--fg-primary) 40%, var(--accent-violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 1.75rem;
}
.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: var(--accent-violet);
  color: #fff;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.2s;
}
.hero-btn:hover { background: #6d28d9; }

/* ─── Hero Visual ─────────────────── */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 380px;
}
.prism-scene {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.prism-crystal {
  position: relative;
  width: 80px;
  height: 80px;
  transform: rotate(15deg);
}
.prism-inner {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.15), 0 0 80px rgba(124, 58, 237, 0.1);
}
.prism-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
/* Spectrum beams */
.spectrum-beam {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg,
    var(--accent-red),
    var(--accent-orange),
    var(--accent-yellow),
    var(--accent-green),
    var(--accent-cyan),
    var(--accent-indigo),
    var(--accent-violet)
  );
  border-radius: 2px;
  opacity: 0.7;
  filter: blur(1px);
}
.spectrum-top {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-60deg);
  width: 200px;
}
.spectrum-right {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(60deg);
  width: 180px;
}
.spectrum-left {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(0deg);
  width: 160px;
}
.spectrum-scatter {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.scatter-dot {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  filter: blur(1px);
}
.scatter-1 { top: 15%; left: 10%; background: var(--accent-red); }
.scatter-2 { top: 25%; left: 85%; background: var(--accent-orange); }
.scatter-3 { top: 60%; left: 5%; background: var(--accent-yellow); }
.scatter-4 { top: 70%; left: 90%; background: var(--accent-green); }
.scatter-5 { top: 85%; left: 15%; background: var(--accent-cyan); }
.scatter-6 { top: 40%; left: 92%; background: var(--accent-indigo); }
.scatter-7 { top: 90%; left: 70%; background: var(--accent-violet); }

/* Hero cards */
.hero-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 8px;
  padding: 0.85rem 1.1rem;
  backdrop-filter: blur(8px);
}
.hero-card-1 {
  bottom: 20px;
  left: -20px;
  max-width: 220px;
}
.hero-card-2 {
  top: 20px;
  right: -20px;
  max-width: 240px;
}
.card-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}
.card-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--fg-secondary);
}
.card-text {
  font-size: 0.78rem;
  color: var(--fg-secondary);
  line-height: 1.55;
  font-style: italic;
}

/* Hero stats */
.hero-stats {
  max-width: 1100px;
  margin: 3rem auto 0;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--fg-primary);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
}
.stat-sep {
  width: 1px;
  height: 40px;
  background: var(--border-subtle);
  flex-shrink: 0;
}

/* ─── Problem ─────────────────────── */
.problem {
  padding: 7rem 2rem;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.problem-inner {
  max-width: 720px;
  margin: 0 auto;
}
.problem-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 2rem;
  letter-spacing: -0.01em;
}
.problem-body {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.75;
  margin-bottom: 1.75rem;
}
.problem-quote {
  border-left: 2px solid var(--accent-violet);
  padding: 1.5rem 2rem;
  margin: 2.5rem 0;
  background: rgba(124, 58, 237, 0.04);
  border-radius: 0 8px 8px 0;
}
.problem-quote blockquote {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--fg-primary);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}
.problem-quote cite {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

/* ─── Features ────────────────────── */
.features {
  padding: 7rem 2rem;
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 0.5rem;
}
.feature {
  background: var(--bg-primary);
  padding: 2.25rem 2rem;
  transition: background 0.2s;
}
.feature:hover {
  background: var(--bg-secondary);
}
.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.1);
  border-radius: 10px;
}
.feature-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--fg-primary);
}
.feature-desc {
  font-size: 0.88rem;
  color: var(--fg-secondary);
  line-height: 1.65;
}

/* ─── Manifesto ───────────────────── */
.manifesto {
  padding: 7rem 2rem;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-top: 1px solid var(--border-subtle);
}
.manifesto-inner {
  max-width: 720px;
  margin: 0 auto;
}
.manifesto-body p {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--fg-primary);
  line-height: 1.7;
  margin-bottom: 2rem;
  letter-spacing: 0.01em;
}
.manifesto-body p:last-child {
  margin-bottom: 0;
}

/* ─── Closing ─────────────────────── */
.closing {
  padding: 9rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.closing::before {
  content: '';
  position: absolute;
  bottom: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 60%;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.closing-inner {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}
.closing-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 1.5rem;
}
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--fg-primary);
}

/* ─── Footer ───────────────────────── */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg-secondary);
}
.footer-copy {
  font-size: 0.78rem;
  color: var(--fg-muted);
  font-family: var(--font-mono);
}

/* ─── Responsive ──────────────────── */
@media (max-width: 900px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .hero-visual {
    height: 280px;
  }
  .hero-card-2 {
    right: 0;
  }
  .hero-card-1 {
    left: 0;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 3rem 1.5rem 2rem;
  }
  .hero-headline {
    font-size: 2.8rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    gap: 1.25rem;
  }
  .stat-num {
    font-size: 1.75rem;
  }
  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
  .problem, .features, .manifesto, .closing {
    padding: 5rem 1.5rem;
  }
}