:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --text-primary: #e8e8ed;
  --text-secondary: #8a8a9a;
  --text-muted: #5a5a6a;
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --accent-bright: #818cf8;
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(99, 102, 241, 0.3);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent-bright);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-bright) 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 56px;
  font-weight: 300;
}

.hero-stats {
  display: flex;
  gap: 32px;
  align-items: center;
  flex-wrap: wrap;
}

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

.stat-number {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  max-width: 160px;
  line-height: 1.4;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

.hero-gradient {
  position: absolute;
  top: -30%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
}

/* PROBLEM */
.problem {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
}

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.problem-label,
.how-label,
.features-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent-bright);
  margin-bottom: 20px;
}

.problem h2,
.how h2,
.features h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
  max-width: 600px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 28px;
  transition: background 0.2s, border-color 0.2s;
}

.problem-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
}

.problem-icon {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-bright);
  margin-bottom: 20px;
  opacity: 0.6;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.problem-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* HOW IT WORKS */
.how {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.how-inner {
  max-width: 800px;
  margin: 0 auto;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  gap: 32px;
  position: relative;
}

.step-line {
  width: 1px;
  background: linear-gradient(to bottom, var(--accent) 0%, var(--border) 100%);
  flex-shrink: 0;
  min-height: 100%;
}

.step:last-child .step-line {
  background: linear-gradient(to bottom, var(--accent) 0%, transparent 100%);
}

.step-content {
  padding: 0 0 56px 0;
}

.step-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-bright);
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.step-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}

/* FEATURES */
.features {
  padding: 120px 40px;
  border-top: 1px solid var(--border);
}

.features-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  transition: background 0.2s, border-color 0.2s;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
}

.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.06) 0%, var(--bg-card) 60%);
  border-color: var(--border-accent);
}

.feature-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-bright);
  background: var(--accent-glow);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* CLOSING */
.closing {
  padding: 140px 40px;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
}

.closing-inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
}

.closing-accent {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-bright));
  margin: 0 auto 40px;
  border-radius: 2px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 300;
}

/* FOOTER */
.site-footer {
  padding: 48px 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

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

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero {
    padding: 100px 24px 60px;
    min-height: auto;
  }

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

  .stat-divider {
    display: none;
  }

  .problem,
  .how,
  .features,
  .closing {
    padding: 80px 24px;
  }

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

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

  .feature-large {
    grid-column: 1;
  }

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

  .step {
    gap: 20px;
  }

  .closing h2 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .lede {
    font-size: 1rem;
  }
}