/* ─── DeciqAI Landing Page — Obsidian & Amber ─── */

:root {
  --bg: #080809;
  --surface: #111113;
  --surface-2: #1a1a1d;
  --border: #222226;
  --fg: #f0ede8;
  --fg-muted: #8a8784;
  --fg-dim: #4a4846;
  --accent: #e8a430;
  --accent-dim: rgba(232, 164, 48, 0.12);
  --accent-glow: rgba(232, 164, 48, 0.08);
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
  --radius: 3px;
  --radius-lg: 6px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── Navigation ─── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 8, 9, 0.85);
  backdrop-filter: blur(12px);
}

.nav-wordmark {
  font-family: var(--serif);
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.nav-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-family: var(--sans);
}

/* ─── Hero ─── */
.hero {
  padding: 80px 48px 64px;
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  font-family: var(--sans);
}

.hero-headline {
  font-family: var(--serif);
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-body {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 440px;
}

.hero-proof {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.proof-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.proof-num {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--fg);
  letter-spacing: -0.02em;
}

.proof-label {
  font-size: 11px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

.proof-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ─── Probability Chart ─── */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.prob-chart {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 28px 20px;
}

.prob-chart-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  margin-bottom: 20px;
  font-family: var(--sans);
}

.prob-chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 120px;
  padding-bottom: 4px;
}

.prob-bar {
  flex: 1;
  background: var(--surface-2);
  border-radius: 2px 2px 0 0;
  position: relative;
  transition: background 0.2s;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 4px;
}

.prob-bar.active {
  background: var(--accent-dim);
  border: 1px solid rgba(232, 164, 48, 0.35);
}

.prob-bar-label {
  font-size: 9px;
  color: var(--fg-dim);
  font-family: var(--sans);
}

.prob-bar.active .prob-bar-label {
  color: var(--accent);
}

.prob-chart-axis {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.prob-chart-axis span {
  font-size: 10px;
  color: var(--fg-dim);
  font-family: var(--sans);
}

.prob-axis-mid {
  font-size: 10px;
  color: var(--fg-muted);
}

.prob-chart-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.prob-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px rgba(232, 164, 48, 0.6);
}

.prob-chart-legend span {
  font-size: 11px;
  color: var(--fg-muted);
  font-family: var(--sans);
}

.hero-visual-caption {
  font-size: 12px;
  color: var(--fg-dim);
  text-align: center;
  font-style: italic;
  font-family: var(--serif);
}

/* ─── Distribution Section ─── */
.distribution {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
}

.distribution-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.dist-headline {
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 24px;
}

.dist-body {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.dist-features {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.dist-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.dist-feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--accent-dim);
  border: 1px solid rgba(232, 164, 48, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.dist-feature-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 6px;
  font-family: var(--sans);
}

.dist-feature-body {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ─── Domains ─── */
.domains {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
}

.domains-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.domains-eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.domains-headline {
  font-family: var(--serif);
  font-size: clamp(28px, 3.5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 56px;
}

.domain-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.domain-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.domain-card-right {
  border-color: rgba(232, 164, 48, 0.2);
  background: linear-gradient(135deg, var(--surface) 0%, rgba(232, 164, 48, 0.04) 100%);
}

.domain-card-icon {
  color: var(--accent);
  margin-bottom: 16px;
}

.domain-card-meta {
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  font-family: var(--sans);
}

.domain-card-title {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--fg);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.domain-card-body {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.domain-card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.domain-card-list li {
  font-size: 13px;
  color: var(--fg-muted);
  padding-left: 16px;
  position: relative;
}

.domain-card-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  opacity: 0.6;
}

/* ─── Philosophy ─── */
.philosophy {
  padding: 80px 48px;
  border-bottom: 1px solid var(--border);
}

.philosophy-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.philosophy-quote {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
}

.philosophy-blockquote {
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.5;
  color: var(--fg);
  font-style: italic;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.philosophy-cite {
  font-size: 12px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  font-style: normal;
}

.philosophy-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-top: 1px solid var(--border);
  padding-top: 48px;
}

.pillar-num {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 12px;
}

.pillar-title {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--fg);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.pillar-body {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ─── Closing ─── */
.closing {
  padding: 96px 48px;
  background: linear-gradient(180deg, var(--bg) 0%, rgba(232, 164, 48, 0.03) 100%);
}

.closing-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.closing-headline {
  font-family: var(--serif);
  font-size: clamp(28px, 3.5vw, 48px);
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}

.closing-body {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.75;
  max-width: 580px;
  margin: 0 auto 16px;
}

.closing-body-bottom {
  font-family: var(--serif);
  font-size: 18px;
  font-style: italic;
  color: var(--fg);
}

/* ─── Footer ─── */
.footer {
  padding: 40px 48px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-wordmark {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--fg);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.footer-tagline {
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
}

.footer-meta { text-align: center; }
.footer-partner { font-size: 10px; color: var(--fg-dim); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 4px; }
.footer-partners { display: flex; gap: 16px; font-size: 12px; color: var(--fg-muted); }

.footer-data { text-align: right; }
.footer-data-label { font-size: 10px; color: var(--fg-dim); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 4px; }
.footer-data-sources { font-size: 11px; color: var(--fg-dim); max-width: 380px; line-height: 1.5; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .hero { padding: 48px 24px 40px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .distribution, .domains, .philosophy, .closing { padding: 56px 24px; }
  .distribution-inner { grid-template-columns: 1fr; gap: 48px; }
  .domain-cards { grid-template-columns: 1fr; }
  .philosophy-pillars { grid-template-columns: 1fr; gap: 28px; }
  .footer { padding: 32px 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-data { text-align: left; }
  .hero-proof { flex-wrap: wrap; }
  .prob-chart-bars { height: 80px; }
}