/* ═══════════════════════════════════════════════════════════
   Edison Forge — Shared Design System
   ═══════════════════════════════════════════════════════════ */

@font-face {
  font-family: 'EF Display';
  src: local('Palatino Linotype'), local('Palatino'), local('Book Antiqua'), local('Georgia');
  font-weight: 400;
  font-style: normal;
}

:root {
  --bg-deep: #08090c;
  --bg-primary: #0d0f14;
  --bg-elevated: #13161e;
  --bg-card: #181c26;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.1);
  --text-primary: #f0ede8;
  --text-secondary: #9a978f;
  --text-tertiary: #5e5c57;
  --amber: #d4a04a;
  --amber-bright: #e8b960;
  --amber-glow: rgba(212, 160, 74, 0.15);
  --amber-subtle: rgba(212, 160, 74, 0.06);
  --font-display: 'EF Display', 'Palatino Linotype', 'Palatino', 'Book Antiqua', Georgia, serif;
  --font-body: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-mono: 'Cascadia Code', 'Consolas', 'Courier New', monospace;
  --max-w: 880px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset ── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ── Grain overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  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)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ── Ambient glow ── */
.ambient-glow {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(212, 160, 74, 0.07) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes drawLine {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

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

.animate-up {
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) forwards;
}

.animate-fade {
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.25s; }
.delay-3 { animation-delay: 0.4s; }
.delay-4 { animation-delay: 0.55s; }
.delay-5 { animation-delay: 0.7s; }
.delay-6 { animation-delay: 0.85s; }
.delay-7 { animation-delay: 1.0s; }
.delay-8 { animation-delay: 1.15s; }

/* ── Header ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 9, 12, 0.8);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.1rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-mark {
  position: relative;
  width: 34px;
  height: 34px;
}

.logo-mark svg {
  width: 34px;
  height: 34px;
}

.logo-wordmark {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.25s ease;
}

nav a:hover {
  color: var(--text-primary);
  background: var(--amber-subtle);
}

nav a.active {
  color: var(--amber);
}

/* ── Hero ── */
.hero {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 8rem 2.5rem 6rem;
  text-align: center;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 2.5rem;
}

.hero-label::before,
.hero-label::after {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--amber);
  opacity: 0.4;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.hero h1 em {
  font-style: italic;
  color: var(--amber);
}

.hero-body {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.85;
}

/* ── Section break ── */
.section-break {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1rem 2.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-break .line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
}

.section-break .dot {
  width: 5px;
  height: 5px;
  background: var(--amber);
  border-radius: 50%;
  opacity: 0.6;
}

/* ── Content sections ── */
.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 5rem 2.5rem;
}

.section-header {
  margin-bottom: 3rem;
}

.section-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  opacity: 0.7;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

/* ── CTA ── */
.cta {
  text-align: center;
  padding: 6rem 2.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
}

.cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 400;
  margin-bottom: 1rem;
}

.cta p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--bg-deep);
  background: var(--amber);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 1rem 2.25rem;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.cta-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.cta-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(212, 160, 74, 0.25);
}

.cta-link:hover::before {
  opacity: 1;
}

.cta-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s var(--ease-out);
}

.cta-link:hover svg {
  transform: translateX(3px);
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 2.5rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-wordmark {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--text-primary);
}

.footer-sep {
  color: var(--text-tertiary);
  font-size: 0.8rem;
}

.footer-legal {
  color: var(--text-tertiary);
  font-size: 0.78rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-links a {
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 0.78rem;
  transition: color 0.25s ease;
}

.footer-links a:hover {
  color: var(--amber);
}

.footer-right {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--text-tertiary);
  font-size: 0.85rem;
}

/* ── Responsive — Tablet ── */
@media (max-width: 768px) {
  .header-inner {
    padding: 1rem 1.5rem;
  }

  nav { gap: 0; }
  nav a { padding: 0.5rem 0.65rem; font-size: 0.75rem; }

  .hero {
    padding: 5rem 1.5rem 4rem;
  }

  .section {
    padding: 3.5rem 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .footer-left {
    flex-direction: column;
    gap: 0.25rem;
  }

  .footer-sep { display: none; }

  .cta {
    padding: 4rem 1.5rem;
  }
}

/* ── Responsive — Mobile ── */
@media (max-width: 480px) {
  .header-inner {
    flex-direction: column;
    gap: 0.75rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .cta {
    padding: 3rem 1.5rem;
  }
}