/* ============================================================
   CLEAR Framework — Accountable AI
   styles.css
   ============================================================ */

:root {
  --navy:       #0b0f1f;
  --navy-mid:   #141929;
  --navy-light: #1e2540;
  --gold:       #c8a96e;
  --gold-light: #e2c99a;
  --cream:      #f4efe6;
  --white:      #ffffff;
  --muted:      rgba(244, 239, 230, 0.45);
  --border:     rgba(200, 169, 110, 0.12);
  --border-hover: rgba(200, 169, 110, 0.35);
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans:  'DM Sans', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { background: var(--navy); color: var(--cream); font-family: var(--sans); font-weight: 300; overflow-x: hidden; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body::before { content: ''; position: fixed; inset: 0; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E"); opacity: 0.025; pointer-events: none; z-index: 9999; }
a { color: inherit; text-decoration: none; }
ol, ul { list-style: none; }
img { display: block; max-width: 100%; }

.container { width: 100%; max-width: 1040px; margin-inline: auto; padding-inline: 4rem; }
.section { padding-block: 7rem; }
.section-alt { background: var(--navy-mid); }

@keyframes fadeDown { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; display: flex; align-items: center; justify-content: space-between; padding: 1.5rem 4rem; border-bottom: 1px solid var(--border); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); background: rgba(11, 15, 31, 0.72); animation: fadeDown 0.8s ease both; }
.nav-logo { font-family: var(--serif); font-size: 1.25rem; font-weight: 400; letter-spacing: 0.04em; color: var(--cream); text-decoration: none; transition: opacity 0.25s; }
.nav-logo:hover { opacity: 0.8; }
.nav-logo span { color: var(--gold); }
.nav-cta { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--navy); background: var(--gold); padding: 0.6rem 1.4rem; text-decoration: none; font-weight: 500; font-family: var(--sans); transition: background 0.25s; }
.nav-cta:hover { background: var(--gold-light); }

.btn-primary { display: inline-block; background: var(--gold); color: var(--navy); padding: 0.65rem 1.5rem; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 500; font-family: var(--sans); text-decoration: none; transition: background 0.25s, transform 0.2s; }
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); }
.btn-large { font-size: 0.8rem; padding: 0.9rem 2rem; letter-spacing: 0.12em; }

.eyebrow-line { display: inline-block; width: 40px; height: 1px; background: var(--gold); opacity: 0.6; vertical-align: middle; }
.section-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 2.2rem; }
.section-tag { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); }
.section-headline { font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 3rem); font-weight: 300; line-height: 1.12; letter-spacing: -0.01em; color: var(--white); margin-bottom: 2.8rem; }
.section-headline em { font-style: italic; color: var(--gold); }

.hero { min-height: 100vh; display: grid; grid-template-columns: 1fr 1fr; align-items: center; padding: 0 4rem; gap: 4rem; position: relative; overflow: hidden; }
.hero::after { content: ''; position: absolute; top: -10%; right: -8%; width: 55vw; height: 55vw; border-radius: 50%; background: radial-gradient(circle at 60% 40%, rgba(200, 169, 110, 0.07) 0%, transparent 70%); pointer-events: none; }
.hero-content { position: relative; z-index: 1; animation: fadeUp 0.9s 0.2s ease both; }
.hero-eyebrow { display: flex; align-items: center; gap: 1rem; margin-bottom: 2rem; }
.hero-eyebrow span:not(.eyebrow-line) { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); }
.hero-headline { font-family: var(--serif); font-size: clamp(3rem, 5.5vw, 5rem); font-weight: 300; line-height: 1.08; letter-spacing: -0.01em; color: var(--white); margin-bottom: 1.8rem; }
.hero-headline em { font-style: italic; color: var(--gold); }
.hero-sub { font-size: 1rem; line-height: 1.75; color: var(--muted); max-width: 420px; margin-bottom: 1.4rem; }
.hero-positioning { font-size: 0.85rem; color: var(--gold); font-family: var(--serif); font-style: italic; border-left: 1px solid rgba(200, 169, 110, 0.4); padding-left: 1rem; margin-bottom: 2.8rem; opacity: 0.85; }
.hero-actions { display: flex; flex-direction: column; gap: 1.4rem; align-items: flex-start; }

.hero-right { display: flex; flex-direction: column; gap: 0.6rem; border-left: 1px solid rgba(200, 169, 110, 0.15); padding-left: 4rem; animation: fadeUp 0.9s 0.45s ease both; }
.stat-card { display: flex; align-items: center; gap: 1.4rem; padding: 1.1rem 1.6rem; background: var(--navy-mid); border: 1px solid var(--border); position: relative; overflow: hidden; transition: border-color 0.3s; }
.stat-card:hover { border-color: var(--border-hover); }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; width: 3px; height: 100%; background: var(--gold); opacity: 0.5; }
.stat-letter { font-family: var(--serif); font-size: 2rem; font-weight: 300; color: var(--gold); line-height: 1; min-width: 1.6rem; }
.stat-label { font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }

.ticker-wrap { overflow: hidden; border-top: 1px solid rgba(200, 169, 110, 0.15); border-bottom: 1px solid rgba(200, 169, 110, 0.15); background: var(--navy-mid); padding: 0.9rem 0; }
.ticker { display: flex; gap: 3rem; animation: ticker 30s linear infinite; white-space: nowrap; width: max-content; }
.ticker-item { display: flex; align-items: center; gap: 1rem; font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); }
.ticker-dot { color: var(--gold); font-size: 0.5rem; }

.prose-block { display: flex; flex-direction: column; gap: 1.4rem; max-width: 640px; }
.prose-block p { font-size: 1rem; line-height: 1.85; color: var(--muted); }

.stages-list { display: flex; flex-direction: column; gap: 0.5rem; }
.stage-item { display: grid; grid-template-columns: 56px 1fr; align-items: start; gap: 2rem; padding: 2rem 2.4rem; background: var(--navy); border: 1px solid var(--border); position: relative; overflow: hidden; transition: border-color 0.3s; }
.stage-item::before { content: ''; position: absolute; top: 0; left: 0; width: 3px; height: 100%; background: var(--gold); opacity: 0.4; transition: opacity 0.3s; }
.stage-item:hover { border-color: var(--border-hover); }
.stage-item:hover::before { opacity: 0.9; }
.stage-letter-badge { display: flex; align-items: center; justify-content: center; font-family: var(--serif); font-size: 2.4rem; font-weight: 300; color: var(--gold); line-height: 1; padding-top: 0.1rem; }
.stage-title { font-family: var(--serif); font-size: 1.3rem; font-weight: 400; color: var(--white); margin-bottom: 0.6rem; letter-spacing: 0.01em; }
.stage-desc { font-size: 0.9rem; color: var(--muted); line-height: 1.8; }

.principles-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; border: 1px solid var(--border); background: var(--border); }
.principle-card { background: var(--navy); padding: 2.4rem 2.6rem; transition: background 0.3s; }
.principle-card:hover { background: var(--navy-mid); }
.principle-title { font-family: var(--serif); font-size: 1.25rem; font-weight: 400; color: var(--gold-light); margin-bottom: 1rem; line-height: 1.25; letter-spacing: 0.01em; }
.principle-desc { font-size: 0.88rem; color: var(--muted); line-height: 1.8; }

.section-cta { position: relative; overflow: hidden; }
.section-cta::after { content: ''; position: absolute; bottom: -20%; left: 50%; transform: translateX(-50%); width: 70vw; height: 50vw; border-radius: 50%; background: radial-gradient(circle, rgba(200, 169, 110, 0.04) 0%, transparent 70%); pointer-events: none; }
.cta-inner { position: relative; z-index: 1; }
.cta-headline { font-family: var(--serif); font-size: clamp(2.2rem, 4vw, 3.5rem); font-weight: 300; line-height: 1.1; letter-spacing: -0.01em; color: var(--white); margin-bottom: 1.8rem; }
.cta-headline em { font-style: italic; color: var(--gold); }
.cta-body { font-size: 1rem; color: var(--muted); max-width: 520px; line-height: 1.8; margin-bottom: 2.8rem; }

.site-footer { background: var(--navy); border-top: 1px solid var(--border); padding-block: 3.5rem; }
.footer-inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.8rem; }
.footer-logo { font-size: 1.4rem; margin-bottom: 0.4rem; }
.footer-note { font-size: 0.78rem; color: var(--muted); font-family: var(--serif); font-style: italic; letter-spacing: 0.02em; opacity: 0.7; }
.footer-link-row { margin-top: 0.4rem; }
.footer-link { font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid rgba(200, 169, 110, 0.25); padding-bottom: 1px; transition: color 0.25s, border-color 0.25s; }
.footer-link:hover { color: var(--gold); border-color: var(--gold); }

@media (max-width: 900px) {
  nav { padding: 1.2rem 2rem; }
  .container { padding-inline: 2rem; }
  .hero { grid-template-columns: 1fr; padding: 8rem 2rem 5rem; min-height: auto; gap: 3rem; }
  .hero::after { display: none; }
  .hero-right { border-left: none; border-top: 1px solid rgba(200, 169, 110, 0.15); padding-left: 0; padding-top: 2rem; }
  .stat-card { padding: 0.9rem 1.2rem; }
  .section { padding-block: 5rem; }
  .principles-grid { grid-template-columns: 1fr; }
  .stage-item { grid-template-columns: 44px 1fr; gap: 1.4rem; padding: 1.6rem 1.8rem; }
  .stage-letter-badge { font-size: 1.8rem; }
}

@media (max-width: 560px) {
  nav { padding: 1rem 1.4rem; }
  .nav-logo { font-size: 1rem; }
  .nav-cta { font-size: 0.65rem; padding: 0.5rem 0.9rem; letter-spacing: 0.08em; }
  .container { padding-inline: 1.4rem; }
  .hero { padding: 7rem 1.4rem 4rem; }
  .hero-headline { font-size: 2.8rem; }
  .btn-primary { width: 100%; text-align: center; }
  .stage-item { grid-template-columns: 36px 1fr; gap: 1rem; padding: 1.4rem; }
  .stage-letter-badge { font-size: 1.5rem; }
  .section-headline { font-size: 1.8rem; }
  .cta-headline { font-size: 2rem; }
  .btn-large { width: 100%; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .ticker { animation: none; }
}