:root {
  --bg: #0c0f14;
  --bg-surface: #13161d;
  --bg-card: #1a1e27;
  --fg: #e8e6e1;
  --fg-muted: #9b9791;
  --fg-dim: #6b675f;
  --accent: #d4a843;
  --accent-glow: rgba(212, 168, 67, 0.15);
  --border: #2a2d36;
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(12, 15, 20, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  color: var(--accent);
  font-size: 20px;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.5px;
}

.nav-tag {
  font-size: 13px;
  color: var(--fg-muted);
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
}

/* HERO */
.hero {
  padding: 160px 32px 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-inner {
  max-width: 780px;
}

.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(212, 168, 67, 0.25);
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 32px;
  letter-spacing: 0.3px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 28px;
}

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

.hero-sub {
  font-size: 19px;
  color: var(--fg-muted);
  max-width: 600px;
  line-height: 1.7;
}

.hero-stat-row {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

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

.stat-num {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 14px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* PROBLEM */
.problem {
  padding: 100px 32px;
  background: var(--bg-surface);
}

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 16px;
}

.problem h2, .how h2, .categories h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 48px;
  line-height: 1.15;
}

.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: var(--accent);
}

.problem-num {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-dim);
  margin-bottom: 20px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.problem-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* HOW */
.how {
  padding: 100px 32px;
}

.how-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 40px;
}

.how-steps::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--border));
}

.how-step {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  padding: 28px 0;
  position: relative;
}

.step-marker {
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  background: var(--accent);
  border: 4px solid var(--bg);
  position: absolute;
  left: -40px;
  top: 32px;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.step-content p {
  font-size: 16px;
  color: var(--fg-muted);
  max-width: 560px;
}

/* CATEGORIES */
.categories {
  padding: 100px 32px;
  background: var(--bg-surface);
}

.categories-inner {
  max-width: 1100px;
  margin: 0 auto;
}

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

.cat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: transform 0.2s, border-color 0.3s;
}

.cat-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.cat-icon {
  font-size: 28px;
  margin-bottom: 16px;
  display: block;
  color: var(--accent);
}

.cat-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.cat-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* CLOSING */
.closing {
  padding: 120px 32px;
  text-align: center;
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 46px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* FOOTER */
.footer {
  padding: 48px 32px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-note {
  font-size: 14px;
  color: var(--fg-muted);
  margin-bottom: 16px;
}

.footer-fine {
  font-size: 12px;
  color: var(--fg-dim);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.6;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }
  
  .cat-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-stat-row {
    flex-direction: column;
    gap: 24px;
  }
  
  .hero {
    padding: 120px 20px 60px;
  }
  
  .problem, .how, .categories {
    padding: 80px 20px;
  }
  
  .closing {
    padding: 80px 20px;
  }
  
  .nav-tag {
    display: none;
  }
}