:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #181822;
  --fg: #e8e6e3;
  --fg-muted: #8a8a9a;
  --accent: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --accent-soft: #fbbf24;
  --border: rgba(255,255,255,0.06);
  --radius: 12px;
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

* { 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: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 80px 8% 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 620px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-glow);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 100px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 520px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

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

.stat-num {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  line-height: 1.35;
}

.stat-divider {
  width: 1px;
  height: 44px;
  background: var(--border);
}

/* Pulse animation */
.hero-pulse {
  position: relative;
  width: 300px;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pulse-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid rgba(245, 158, 11, 0.2);
  animation: pulse-expand 3s ease-out infinite;
}

.pulse-ring-1 { width: 120px; height: 120px; animation-delay: 0s; }
.pulse-ring-2 { width: 120px; height: 120px; animation-delay: 1s; }
.pulse-ring-3 { width: 120px; height: 120px; animation-delay: 2s; }

@keyframes pulse-expand {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

.pulse-icon {
  font-size: 3.2rem;
  z-index: 2;
  width: 90px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 40px var(--accent-glow);
}

/* === PROBLEM === */
.problem {
  padding: 120px 8%;
  border-top: 1px solid var(--border);
}

.problem-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
}

.problem-left h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  position: sticky;
  top: 120px;
}

.problem-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.problem-card {
  padding: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: rgba(245, 158, 11, 0.3);
}

.problem-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.problem-card p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* === HOW === */
.how {
  padding: 120px 8%;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.how-header {
  margin-bottom: 64px;
  max-width: 640px;
}

.how-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.how-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.how-step {
  padding: 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(245, 158, 11, 0.12);
  position: absolute;
  top: 20px;
  right: 28px;
  line-height: 1;
}

.how-step h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--accent-soft);
}

.how-step p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* === VERTICALS === */
.verticals {
  padding: 120px 8%;
}

.verticals-inner {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.verticals-inner h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.vert-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.vert-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  transition: border-color 0.2s, background 0.2s;
}

.vert-item:hover {
  border-color: rgba(245, 158, 11, 0.3);
  background: var(--bg-card);
}

.vert-emoji { font-size: 1.3rem; }

/* === CLOSING === */
.closing {
  padding: 120px 8%;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing-inner h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.closing-inner > p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  margin-bottom: 56px;
  line-height: 1.7;
}

.closing-math {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 36px 44px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.math-item { display: flex; flex-direction: column; gap: 2px; }

.math-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
}

.math-total .math-value {
  color: var(--accent);
  font-size: 2.4rem;
}

.math-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

.math-symbol {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--fg-muted);
}

/* === FOOTER === */
.site-footer {
  padding: 48px 8%;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-inner {
  max-width: 600px;
  margin: 0 auto;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.88rem;
  color: var(--fg-muted);
  margin-bottom: 8px;
}

.footer-contact {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

/* === MOBILE === */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 60px 6% 80px;
    gap: 48px;
  }

  .hero-inner { max-width: 100%; }
  .hero-sub { margin-left: auto; margin-right: auto; }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
    align-items: center;
    text-align: center;
  }

  .stat-divider { width: 60px; height: 1px; }

  .hero-pulse { width: 200px; height: 200px; }
  .pulse-icon { width: 70px; height: 70px; font-size: 2.4rem; }

  .problem-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .problem-left h2 { position: static; }

  .how-grid { grid-template-columns: 1fr; }

  .closing-math {
    flex-direction: column;
    gap: 16px;
    padding: 28px 20px;
  }

  .math-symbol { font-size: 1.2rem; }
}