:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1424;
  --bg-card: #151b2e;
  --fg-primary: #e8eaf0;
  --fg-secondary: #8b92a8;
  --fg-muted: #555d75;
  --accent: #00d4aa;
  --accent-dim: rgba(0, 212, 170, 0.12);
  --accent-glow: rgba(0, 212, 170, 0.25);
  --border: rgba(255, 255, 255, 0.06);
  --font-heading: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}

.hero-inner {
  max-width: 820px;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 170, 0.2);
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 28px;
  color: #fff;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 600px;
  line-height: 1.7;
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -150px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.4;
}

/* ===== PROBLEM ===== */
.problem {
  padding: 100px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.problem-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 48px;
}

.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;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.problem-stat {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.problem-desc {
  font-size: 0.95rem;
  color: var(--fg-secondary);
  line-height: 1.5;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 40px;
}

.features-inner {
  max-width: 900px;
  margin: 0 auto;
}

.feature-block {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.feature-block:last-child {
  border-bottom: none;
}

.feature-number {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  padding-top: 4px;
}

.feature-content h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}

.feature-content p {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.7;
  max-width: 640px;
}

/* ===== PROOF ===== */
.proof {
  padding: 100px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.proof-inner {
  max-width: 900px;
  margin: 0 auto;
}

.proof h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.proof-text {
  font-size: 1.1rem;
  color: var(--fg-secondary);
  line-height: 1.75;
  max-width: 680px;
}

.proof-divider {
  width: 60px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
  margin: 48px 0;
}

.proof-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.proof-stat-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.proof-stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
}

.proof-stat-label {
  font-size: 0.88rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ===== CLOSING ===== */
.closing {
  padding: 140px 40px;
  text-align: center;
  position: relative;
}

.closing-inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.closing h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.closing-sub {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--accent);
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 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-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--fg-primary);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero {
    padding: 100px 24px 60px;
    min-height: 80vh;
  }

  .problem { padding: 64px 24px; }
  .features { padding: 64px 24px; }
  .proof { padding: 64px 24px; }
  .closing { padding: 80px 24px; }
  .site-footer { padding: 32px 24px; }

  .problem-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 36px 0;
  }

  .proof-stats {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-glow {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
  }
}

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

  .problem h2,
  .proof h2,
  .closing h2 {
    font-size: 1.5rem;
  }

  .problem-stat {
    font-size: 2rem;
  }
}