:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --fg: #e8e4df;
  --fg-muted: #8a8580;
  --fg-dim: #5a5550;
  --accent: #d4a04a;
  --accent-dim: #b8892e;
  --accent-glow: rgba(212, 160, 74, 0.12);
  --red: #c45c4a;
  --green: #5a9e6f;
  --border: #2a2520;
  --radius: 4px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

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

html { scroll-behavior: smooth; }

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

/* --- HERO --- */
.hero {
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 40px 60px;
  max-width: 1000px;
  margin: 0 auto;
}

.hero-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 32px;
  font-weight: 500;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 32px;
  color: var(--fg);
}

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

.hero .lede {
  font-size: 19px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 640px;
  margin-bottom: 48px;
}

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

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

.stat-number {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -1px;
}

.stat-label {
  font-size: 13px;
  color: var(--fg-dim);
  letter-spacing: 0.5px;
}

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

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

.problem-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 48px;
  font-weight: 500;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.problem-icon {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--red);
  margin-bottom: 16px;
  font-weight: 500;
}

.problem-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--fg);
  letter-spacing: -0.5px;
}

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

/* --- FEATURES --- */
.features {
  padding: 100px 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

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

.feature-row:last-child {
  border-bottom: none;
}

.feature-number {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent-dim);
  font-weight: 500;
  min-width: 36px;
  padding-top: 4px;
}

.feature-content h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--fg);
  letter-spacing: -0.5px;
}

.feature-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 600px;
}

/* --- HOW (comparison) --- */
.how {
  background: var(--bg-elevated);
  padding: 100px 40px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how .section-label {
  text-align: center;
  max-width: 1000px;
  margin: 0 auto 48px;
}

.how-comparison {
  display: flex;
  gap: 0;
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.how-col {
  flex: 1;
  padding: 36px;
}

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

.how-new {
  background: var(--accent-glow);
}

.how-col h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.how-old h3 { color: var(--fg-dim); }
.how-new h3 { color: var(--accent); }

.how-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.how-col li {
  font-size: 15px;
  line-height: 1.5;
  padding-left: 20px;
  position: relative;
}

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

.how-old li::before {
  content: '\2013';
  position: absolute;
  left: 0;
  color: var(--fg-dim);
}

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

.how-new li::before {
  content: '\2192';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.how-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  background: var(--bg);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}

.how-divider span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* --- CLOSING --- */
.closing {
  padding: 120px 40px;
  text-align: center;
}

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

.closing h2 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  color: var(--fg);
}

.closing p {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
}

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

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 1px;
}

.footer-sub {
  font-size: 13px;
  color: var(--fg-dim);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .hero {
    padding: 60px 24px 40px;
    min-height: 80vh;
  }

  .hero .lede {
    font-size: 17px;
  }

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

  .hero-stat-divider {
    display: none;
  }

  .stat-number {
    font-size: 22px;
  }

  .problem {
    padding: 60px 24px;
  }

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

  .features {
    padding: 60px 24px;
  }

  .feature-row {
    flex-direction: column;
    gap: 12px;
    padding: 28px 0;
  }

  .how {
    padding: 60px 24px;
  }

  .how-comparison {
    flex-direction: column;
  }

  .how-divider {
    width: 100%;
    height: 48px;
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .closing {
    padding: 80px 24px;
  }

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