:root {
  --bg: #0a0a0f;
  --bg-surface: #12121a;
  --bg-elevated: #1a1a26;
  --fg: #e8e8f0;
  --fg-muted: #8888a0;
  --fg-dim: #555570;
  --accent: #00e5a0;
  --accent-glow: rgba(0, 229, 160, 0.15);
  --accent-hot: #ff4d6a;
  --gradient-start: #00e5a0;
  --gradient-end: #00a3ff;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-width: 1100px;
  --radius: 12px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: 120px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  padding: 6px 14px;
  border: 1px solid rgba(0, 229, 160, 0.3);
  border-radius: 100px;
  background: rgba(0, 229, 160, 0.06);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  max-width: 700px;
  margin-bottom: 28px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 20px;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.6;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

/* Problem section */
.problem {
  padding: 100px 0;
  position: relative;
}

.problem::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--fg-dim), transparent);
}

.problem-header {
  text-align: center;
  margin-bottom: 64px;
}

.problem-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.problem-header h2 .red {
  color: var(--accent-hot);
}

.problem-header p {
  color: var(--fg-muted);
  font-size: 18px;
  max-width: 560px;
  margin: 0 auto;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pain-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s;
}

.pain-card:hover {
  border-color: rgba(255, 77, 106, 0.3);
}

.pain-card .pain-stat {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent-hot);
  margin-bottom: 8px;
}

.pain-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.pain-card p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.5;
}

/* Features / Pipeline */
.pipeline {
  padding: 100px 0;
  position: relative;
}

.pipeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--fg-dim), transparent);
}

.pipeline-header {
  margin-bottom: 64px;
}

.pipeline-header h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.pipeline-header h2 .highlight {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pipeline-header p {
  color: var(--fg-muted);
  font-size: 18px;
  max-width: 520px;
}

.pipeline-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 24px;
  padding: 36px 32px;
  background: var(--bg-surface);
  border-radius: var(--radius);
  align-items: start;
  transition: background 0.2s;
}

.step:hover {
  background: var(--bg-elevated);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  background: rgba(0, 229, 160, 0.1);
  color: var(--accent);
  border: 1px solid rgba(0, 229, 160, 0.25);
  flex-shrink: 0;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.5;
}

/* Closing */
.closing {
  padding: 120px 0;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.closing .container {
  position: relative;
  z-index: 1;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.1;
  max-width: 640px;
  margin: 0 auto 24px;
}

.closing h2 .highlight {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.closing p {
  color: var(--fg-muted);
  font-size: 18px;
  max-width: 480px;
  margin: 0 auto;
}

/* Footer */
footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
}

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

/* Responsive */
@media (max-width: 768px) {
  .pain-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 32px;
  }

  .step {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px 20px;
  }

  .step-number {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}