:root {
  --bg: #0c0f1a;
  --bg-surface: #141828;
  --bg-elevated: #1a2035;
  --fg: #e8e6e1;
  --fg-muted: #8a8a96;
  --fg-dim: #5a5a6a;
  --accent: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --accent-soft: #fbbf24;
  --warm-gradient: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --radius: 12px;
  --max-w: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  line-height: 1.15;
}

.highlight {
  background: var(--warm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===================== HERO ===================== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-inner {
  max-width: var(--max-w);
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(245, 158, 11, 0.25);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--fg-muted);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.7;
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* ===================== PROBLEM ===================== */
.problem {
  padding: 100px 24px;
  background: var(--bg-surface);
}

.problem-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
  align-items: start;
}

.stat-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 5rem;
  font-weight: 700;
  background: var(--warm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1;
  margin-bottom: 16px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

.problem-text p {
  font-size: 1.25rem;
  color: var(--fg-muted);
  margin-bottom: 20px;
}

.problem-text p:last-child { margin-bottom: 0; }

.problem-text strong {
  color: var(--fg);
}

/* ===================== FEATURES ===================== */
.features {
  padding: 120px 24px;
}

.features-header {
  max-width: var(--max-w);
  margin: 0 auto 64px;
}

.features-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
}

.features-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 40px;
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(245, 158, 11, 0.2);
}

.feature-card--large {
  grid-row: 1 / 3;
}

.feature-icon {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.35rem;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

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

.feature-warm-score {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.warm-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 100px;
  overflow: hidden;
}

.warm-fill {
  height: 100%;
  background: var(--warm-gradient);
  border-radius: 100px;
  transition: width 1.5s ease;
}

.warm-value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.8rem;
  background: var(--warm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===================== HOW ===================== */
.how {
  padding: 100px 24px;
  background: var(--bg-surface);
}

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

.how h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}

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

.how-step {
  display: flex;
  align-items: baseline;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.how-step:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  min-width: 40px;
}

.step-content h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.step-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  max-width: 560px;
}

/* ===================== CLOSING ===================== */
.closing {
  padding: 140px 24px;
  text-align: center;
  position: relative;
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.closing h2 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ===================== FOOTER ===================== */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

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

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
}

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

.footer-meta a {
  color: var(--fg-muted);
  text-decoration: none;
}

.footer-meta a:hover {
  color: var(--accent);
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
  .hero {
    min-height: 70vh;
    padding: 100px 20px 60px;
  }

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

  .stat-number {
    font-size: 3.5rem;
  }

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

  .feature-card--large {
    grid-row: auto;
  }

  .how-step {
    flex-direction: column;
    gap: 12px;
  }

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