:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e6e3;
  --fg-dim: #8a8892;
  --fg-muted: #5a5867;
  --accent: #c9a96e;
  --accent-glow: rgba(201, 169, 110, 0.15);
  --purple: #7c5cfc;
  --pink: #ff85c0;
  --red: #ff6b6b;
  --green: #00d4aa;
  --font-display: 'Syne', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;
  --max-w: 1200px;
  --space-section: clamp(80px, 12vw, 160px);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ========== NAV ========== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px clamp(24px, 5vw, 60px);
  background: linear-gradient(to bottom, rgba(10,10,15,0.95), transparent);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 4px;
  color: var(--fg);
}

.nav-tag {
  font-size: 13px;
  color: var(--fg-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px clamp(24px, 5vw, 60px) 80px;
  overflow: hidden;
}

.hero-grain {
  position: absolute;
  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='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201,169,110,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124,92,252,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 850px;
}

.hero-label {
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  font-weight: 500;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(42px, 7vw, 86px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1px;
  margin-bottom: 32px;
}

.hero-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--fg-dim);
  max-width: 600px;
  line-height: 1.7;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--fg-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* ========== MANIFESTO ========== */
.manifesto {
  padding: var(--space-section) clamp(24px, 5vw, 60px);
  border-top: 1px solid rgba(255,255,255,0.04);
}

.manifesto-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.manifesto-label,
.section-label {
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  font-weight: 500;
}

.manifesto-text {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 42px);
  font-weight: 600;
  line-height: 1.3;
  max-width: 900px;
  margin-bottom: 24px;
}

.manifesto-sub {
  font-size: 18px;
  color: var(--fg-dim);
  max-width: 650px;
  line-height: 1.7;
}

/* ========== PERSONAS ========== */
.personas {
  padding: var(--space-section) clamp(24px, 5vw, 60px);
  border-top: 1px solid rgba(255,255,255,0.04);
}

.personas-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 56px;
  max-width: 700px;
}

.persona-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.persona-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  padding: 36px;
  transition: border-color 0.3s, transform 0.3s;
}

.persona-card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.persona-card-wide {
  grid-column: 1 / -1;
}

.persona-niche {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.persona-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-bottom: 16px;
}

.persona-desc {
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.7;
}

/* ========== HOW ========== */
.how {
  padding: var(--space-section) clamp(24px, 5vw, 60px);
  border-top: 1px solid rgba(255,255,255,0.04);
}

.how-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.how-item {
  padding: 32px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.how-num {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 16px;
}

.how-item h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.how-item p {
  font-size: 15px;
  color: var(--fg-dim);
  line-height: 1.7;
}

/* ========== NUMBERS ========== */
.numbers {
  padding: var(--space-section) clamp(24px, 5vw, 60px);
  border-top: 1px solid rgba(255,255,255,0.04);
  background: var(--bg-elevated);
}

.numbers-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.number-block {
  text-align: center;
}

.number-value {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  background: linear-gradient(135deg, var(--fg) 0%, var(--fg-dim) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 8px;
}

.number-label {
  font-size: 14px;
  color: var(--fg-muted);
  letter-spacing: 1px;
}

/* ========== CLOSING ========== */
.closing {
  padding: var(--space-section) clamp(24px, 5vw, 60px);
  border-top: 1px solid rgba(255,255,255,0.04);
  text-align: center;
}

.closing-inner {
  max-width: 750px;
  margin: 0 auto;
}

.closing-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
}

.closing-text {
  font-size: 18px;
  color: var(--fg-dim);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto;
}

/* ========== FOOTER ========== */
.footer {
  padding: 48px clamp(24px, 5vw, 60px);
  border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 4px;
  color: var(--fg-muted);
}

.footer-meta {
  font-size: 13px;
  color: var(--fg-muted);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .persona-grid {
    grid-template-columns: 1fr;
  }
  
  .persona-card-wide {
    grid-column: 1;
  }
  
  .how-grid {
    grid-template-columns: 1fr;
  }
  
  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .nav {
    padding: 16px 20px;
  }
}

@media (max-width: 480px) {
  .numbers-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}