:root {
  --bg: #0a0a0c;
  --bg-elevated: #141418;
  --bg-card: #1a1a20;
  --fg: #e8e6e1;
  --fg-muted: #9b9a97;
  --fg-dim: #6b6a68;
  --accent: #d4a853;
  --accent-glow: rgba(212, 168, 83, 0.15);
  --accent-soft: #c49a42;
  --negative: #e85d5d;
  --positive: #5dd4a8;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== 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-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent);
  border: 1px solid rgba(212, 168, 83, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
  background: var(--accent-glow);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 580px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
}

.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.82rem;
  color: var(--fg-dim);
  letter-spacing: 0.02em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-gradient {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 168, 83, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

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

.problem-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.problem-left h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  position: sticky;
  top: 40px;
}

.problem-right p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  margin-bottom: 20px;
  line-height: 1.75;
}

.problem-highlight {
  color: var(--accent) !important;
  font-weight: 500;
  font-size: 1.15rem !important;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 40px;
  background: var(--bg-elevated);
}

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

.features-header {
  margin-bottom: 56px;
}

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(212, 168, 83, 0.2);
}

.feature-card-large {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  gap: 0 20px;
  padding: 40px 36px;
}

.feature-card-large .feature-icon {
  grid-row: span 2;
  font-size: 2.4rem;
  align-self: center;
}

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

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ===== HOW / COMPARISON ===== */
.how {
  padding: 100px 40px;
}

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

.how-header {
  margin-bottom: 56px;
  max-width: 600px;
}

.how-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.how-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

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

.how-col {
  border-radius: var(--radius);
  padding: 36px 32px;
  border: 1px solid var(--border);
}

.how-old {
  background: var(--bg-elevated);
}

.how-new {
  background: var(--accent-glow);
  border-color: rgba(212, 168, 83, 0.2);
}

.how-col-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 24px;
  color: var(--fg-dim);
}

.how-new .how-col-label {
  color: var(--accent);
}

.how-col ul {
  list-style: none;
}

.how-col li {
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--border);
}

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

.how-new li {
  color: var(--fg);
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 40px;
  text-align: center;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
}

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

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.closing-text {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.75;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 40px;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

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

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

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .stat-divider {
    display: none;
  }

  .problem {
    padding: 60px 24px;
  }

  .problem-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .problem-left h2 {
    position: static;
  }

  .features {
    padding: 60px 24px;
  }

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

  .feature-card-large {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

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

  .how {
    padding: 60px 24px;
  }

  .how-comparison {
    grid-template-columns: 1fr;
  }

  .closing {
    padding: 80px 24px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}