:root {
  --bg-primary: #0a0a0b;
  --bg-secondary: #111114;
  --bg-tertiary: #1a1a1f;
  --fg-primary: #f0f0f2;
  --fg-secondary: #a0a0a8;
  --fg-muted: #6a6a72;
  --accent: #ff5722;
  --accent-glow: rgba(255, 87, 34, 0.15);
  --accent-soft: #ff8a65;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --max-width: 1140px;
}

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

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: 'DM Sans', -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

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

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(255, 87, 34, 0.25);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  color: var(--fg-primary);
  margin-bottom: 28px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 560px;
  margin-bottom: 48px;
  line-height: 1.7;
}

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

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

.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg-primary);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

.hero-gradient {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 87, 34, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* Hero CTA row (primary + secondary) */
.hero-ctas {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 48px;
}

.hero-secondary-cta {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-secondary);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.hero-secondary-cta:hover {
  border-color: rgba(255, 87, 34, 0.3);
  color: var(--fg-primary);
}

/* ===== PROBLEM ===== */
.problem {
  padding: 100px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 40px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.problem-text h3 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--fg-primary);
}

.problem-text p {
  color: var(--fg-secondary);
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.75;
}

.problem-numbers {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.problem-stat {
  padding: 24px;
  background: var(--bg-tertiary);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.problem-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent-soft);
  display: block;
  margin-bottom: 6px;
}

.problem-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 24px;
}

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

.features-headline {
  font-size: 2.4rem;
  margin-bottom: 56px;
  color: var(--fg-primary);
}

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

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(255, 87, 34, 0.2);
}

.feature-card-large {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(255, 87, 34, 0.04) 100%);
}

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

.feature-card h4 {
  font-size: 1.2rem;
  color: var(--fg-primary);
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== CATEGORIES ===== */
.categories {
  padding: 100px 24px;
  border-top: 1px solid var(--border);
}

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

.categories-headline {
  font-size: 2.2rem;
  margin-bottom: 56px;
  color: var(--fg-primary);
  max-width: 700px;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.cat-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 36px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.25s ease, transform 0.2s ease;
}

.cat-card:hover {
  border-color: rgba(255, 87, 34, 0.3);
  transform: translateY(-2px);
}

.cat-card-accent {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, rgba(255, 87, 34, 0.05) 100%);
  border-color: rgba(255, 87, 34, 0.15);
}

.cat-icon {
  font-size: 1.8rem;
}

.cat-card h4 {
  font-size: 1.25rem;
  color: var(--fg-primary);
  font-family: 'Space Grotesk', sans-serif;
}

.cat-card p {
  color: var(--fg-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
  flex: 1;
}

.cat-cta {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.01em;
  margin-top: auto;
}

.categories-cta-row {
  text-align: center;
}

.btn-catalog-all {
  display: inline-flex;
  align-items: center;
  padding: 16px 36px;
  background: var(--accent);
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: opacity 0.2s ease;
}

.btn-catalog-all:hover {
  opacity: 0.88;
}

/* ===== HOW ===== */
.how {
  padding: 100px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 48px;
}

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

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

.step-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--bg-tertiary);
  -webkit-text-stroke: 1px var(--fg-muted);
  flex-shrink: 0;
  width: 80px;
}

.step-content h4 {
  font-size: 1.3rem;
  margin-bottom: 8px;
  color: var(--fg-primary);
}

.step-content p {
  color: var(--fg-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 24px;
  text-align: center;
  position: relative;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 24px;
  color: var(--fg-primary);
}

.closing p {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 40px;
}

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

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

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

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg-primary);
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 12px;
}

.footer-detail {
  font-size: 0.75rem;
  color: var(--fg-muted);
  opacity: 0.6;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 80px 20px 60px;
  }
  
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-card-large {
    grid-column: span 1;
  }
  
  .how-step {
    flex-direction: column;
    gap: 16px;
  }
  
  .step-number {
    width: auto;
    font-size: 2rem;
  }
  
  .hero-stats {
    gap: 20px;
  }
  
  .stat-divider {
    display: none;
  }

  .problem,
  .features,
  .how,
  .closing {
    padding: 60px 20px;
  }
}