:root {
  --bg-deep: #0a0e17;
  --bg-surface: #111827;
  --bg-card: #1a2236;
  --bg-card-highlight: #1e293b;
  --fg-primary: #f0f4f8;
  --fg-secondary: #94a3b8;
  --fg-muted: #64748b;
  --accent: #f59e0b;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --accent-soft: #fbbf24;
  --border: rgba(148, 163, 184, 0.08);
  --radius: 12px;
  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; }

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

h1, h2, h3, .hero-badge, .how-step-num, .modality-num, .tier-name, .tier-price, .footer-brand, .problem-label, .how-label, .modalities-label {
  font-family: 'Space Grotesk', sans-serif;
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 60px;
  overflow: hidden;
}

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

.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(245, 158, 11, 0.2);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 36px;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-accent {
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 620px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stat-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stat { text-align: center; }

.hero-stat-num {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--fg-primary);
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  display: block;
  margin-top: 4px;
}

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

.hero-gradient {
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

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

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

.problem-label,
.how-label,
.modalities-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem h2,
.how h2,
.modalities h2,
.closing h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  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: var(--radius);
  padding: 36px 28px;
  transition: border-color 0.3s;
}

.problem-card:hover {
  border-color: rgba(148, 163, 184, 0.15);
}

.problem-card-highlight {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(245, 158, 11, 0.05) 100%);
  border-color: rgba(245, 158, 11, 0.15);
}

.problem-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

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

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

/* ---- HOW IT WORKS ---- */
.how {
  padding: 100px 24px;
  background: var(--bg-deep);
}

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

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

.how-step {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.how-step:last-child {
  border-bottom: none;
}

.how-step-num {
  font-size: 3rem;
  font-weight: 700;
  color: rgba(245, 158, 11, 0.2);
  line-height: 1;
  min-width: 80px;
  letter-spacing: -0.02em;
}

.how-step-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--fg-primary);
}

.how-step-content p {
  font-size: 0.95rem;
  color: var(--fg-secondary);
  line-height: 1.65;
  max-width: 560px;
}

/* ---- MODALITIES ---- */
.modalities {
  padding: 100px 24px;
  background: var(--bg-surface);
}

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

.modalities-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.modality-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 20px;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}

.modality-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, 0.2);
}

.modality-num {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.modality-card p {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  line-height: 1.55;
}

/* ---- CLOSING ---- */
.closing {
  position: relative;
  padding: 120px 24px;
  background: var(--bg-deep);
  text-align: center;
  overflow: hidden;
}

.closing-inner {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.closing-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 65%);
  pointer-events: none;
  z-index: 1;
}

.closing h2 {
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  line-height: 1.7;
  margin-bottom: 56px;
}

.closing-tiers {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.closing-tier {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  min-width: 200px;
  flex: 1;
  max-width: 240px;
}

.tier-highlight {
  border-color: rgba(245, 158, 11, 0.3);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(245, 158, 11, 0.06) 100%);
}

.tier-name {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--fg-muted);
  margin-bottom: 8px;
}

.tier-highlight .tier-name {
  color: var(--accent);
}

.tier-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--fg-primary);
  margin-bottom: 8px;
}

.tier-desc {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  line-height: 1.5;
}

/* ---- FOOTER ---- */
.site-footer {
  padding: 48px 24px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  text-align: center;
}

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

.footer-brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg-primary);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--fg-muted);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .modalities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .how-step-num {
    font-size: 2rem;
    min-width: auto;
  }
}

@media (max-width: 600px) {
  .hero {
    min-height: 80vh;
    padding: 60px 20px 40px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-stat-row {
    flex-direction: column;
    gap: 20px;
  }

  .hero-stat-divider {
    width: 48px;
    height: 1px;
  }

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

  .closing-tiers {
    flex-direction: column;
    align-items: center;
  }

  .closing-tier {
    max-width: 100%;
    width: 100%;
  }

  .problem, .how, .modalities, .closing {
    padding: 64px 20px;
  }
}