:root {
  --bg-primary: #0d0f0e;
  --bg-secondary: #151917;
  --bg-card: #1a1f1d;
  --bg-card-alt: #0f1412;
  --text-primary: #e8ece9;
  --text-secondary: #8a9690;
  --text-muted: #5a6560;
  --accent: #e07a2f;
  --accent-glow: rgba(224, 122, 47, 0.15);
  --accent-light: #f09a50;
  --green: #3db86a;
  --red: #c44040;
  --border: #252b28;
  --border-light: #2f3633;
  --mono: 'IBM Plex Mono', monospace;
  --sans: 'Space Grotesk', sans-serif;
}

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

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== HERO ===== */
.hero {
  padding: 120px 24px 80px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(224, 122, 47, 0.3);
  padding: 6px 16px;
  border-radius: 4px;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 28px;
}

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

.hero .lede {
  font-size: 19px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn-hero-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}

.btn-hero-primary:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

.hero-cta-sub {
  font-size: 14px;
  color: var(--text-muted);
  font-family: var(--mono);
}

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

.stat { text-align: center; }

.stat-number {
  display: block;
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.stat-label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

/* ===== PROBLEM ===== */
.problem {
  padding: 80px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.problem-text {
  margin-bottom: 48px;
}

.problem-text h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 20px;
  line-height: 1.15;
}

.problem-text p {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 600px;
  margin-bottom: 12px;
}

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

.comparison-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
}

.comparison-card.old {
  border-color: rgba(196, 64, 64, 0.3);
}

.comparison-card.new {
  border-color: rgba(61, 184, 106, 0.3);
  background: rgba(61, 184, 106, 0.04);
}

.card-header {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.comparison-card.old .card-header { color: var(--red); }
.comparison-card.new .card-header { color: var(--green); }

.comparison-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.comparison-card li {
  font-size: 15px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.comparison-card.old li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: var(--red);
  font-size: 12px;
}

.comparison-card.new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--green);
  font-size: 14px;
}

/* ===== FEATURES ===== */
.features {
  padding: 80px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.features-header {
  margin-bottom: 48px;
}

.features-header h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.15;
}

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

.feature-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
  transition: border-color 0.2s;
}

.feature-block:hover {
  border-color: var(--border-light);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 16px;
  display: inline-block;
  width: 48px;
  height: 48px;
  line-height: 48px;
  text-align: center;
  background: var(--accent-glow);
  border-radius: 8px;
}

.feature-block h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}

.feature-block p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== HOW ===== */
.how {
  padding: 80px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.how h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 48px;
  line-height: 1.15;
}

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

.step {
  display: flex;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.step:first-child { padding-top: 0; }
.step:last-child { border-bottom: none; }

.step-number {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  min-width: 40px;
  padding-top: 2px;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.step-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 24px;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(224, 122, 47, 0.06) 50%, var(--bg-primary) 100%);
}

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

.closing h2 {
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 20px;
  line-height: 1.15;
}

.closing p {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
  .hero { padding: 80px 20px 60px; }
  .hero .lede { font-size: 17px; }
  
  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }
  
  .stat-divider {
    width: 40px;
    height: 1px;
  }
  
  .problem-comparison {
    grid-template-columns: 1fr;
  }
  
  .feature-blocks {
    grid-template-columns: 1fr;
  }
  
  .step {
    flex-direction: column;
    gap: 8px;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 32px; }
  .comparison-card { padding: 20px; }
  .feature-block { padding: 24px; }
}