:root {
  --bg-primary: #0a0b0d;
  --bg-secondary: #111318;
  --bg-card: #161921;
  --fg-primary: #e8e6e1;
  --fg-secondary: #9a9590;
  --fg-muted: #5c5752;
  --accent: #d4944c;
  --accent-dim: #a06b2e;
  --accent-glow: rgba(212, 148, 76, 0.12);
  --border: #1e2128;
  --success: #4ade80;
  --danger: #ef5350;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --max-width: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ===== HERO ===== */
.hero {
  padding: 120px 24px 80px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border);
}

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

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--accent-dim);
  padding: 6px 16px;
  border-radius: 3px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -1.5px;
  color: var(--fg-primary);
  margin-bottom: 24px;
}

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

.hero-sub {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--fg-secondary);
  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;
}

.hero-stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--fg-primary);
}

.hero-stat-label {
  font-size: 0.82rem;
  color: var(--fg-muted);
  letter-spacing: 0.5px;
}

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

/* ===== NUMBERS ===== */
.numbers {
  padding: 72px 24px;
  background: var(--bg-primary);
}

.numbers-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.number-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.number-value {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -1px;
}

.number-desc {
  font-size: 0.92rem;
  color: var(--fg-secondary);
  line-height: 1.5;
}

/* ===== FEATURES ===== */
.features {
  padding: 96px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

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

.features-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--fg-primary);
  margin-bottom: 16px;
}

.features-header p {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  max-width: 560px;
  line-height: 1.7;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 32px 28px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--accent-dim);
}

.feature-icon {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--fg-primary);
  margin-bottom: 10px;
}

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

/* ===== HOW ===== */
.how {
  padding: 96px 24px;
  background: var(--bg-primary);
}

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

.how-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--fg-primary);
  margin-bottom: 16px;
}

.how-sub {
  font-size: 1.05rem;
  color: var(--fg-secondary);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.how-comparison {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.how-col {
  border-radius: 6px;
  padding: 32px 28px;
  border: 1px solid var(--border);
}

.how-col-header {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.how-old {
  background: rgba(239, 83, 80, 0.04);
  border-color: rgba(239, 83, 80, 0.15);
}

.how-old .how-col-header {
  color: var(--danger);
}

.how-new {
  background: rgba(74, 222, 128, 0.04);
  border-color: rgba(74, 222, 128, 0.15);
}

.how-new .how-col-header {
  color: var(--success);
}

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

.how-col li {
  font-size: 0.92rem;
  color: var(--fg-secondary);
  line-height: 1.5;
  padding-left: 18px;
  position: relative;
}

.how-old li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: var(--danger);
  font-size: 0.7rem;
  top: 3px;
}

.how-new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--success);
  font-size: 0.8rem;
  top: 2px;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 24px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-top: 1px solid var(--border);
  text-align: center;
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1.2px;
  line-height: 1.15;
  color: var(--fg-primary);
  margin-bottom: 20px;
}

.closing p {
  font-size: 1.1rem;
  color: var(--fg-secondary);
  line-height: 1.7;
}

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

.footer-inner {
  max-width: var(--max-width);
  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;
  color: var(--fg-primary);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero { padding: 80px 20px 60px; }
  .numbers-inner { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .how-comparison { grid-template-columns: 1fr; }
  .hero-stat-row { gap: 20px; }
  .hero-stat-divider { display: none; }
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .hero { padding: 60px 16px 48px; }
  .hero-badge { font-size: 10px; padding: 5px 12px; }
  .number-card { padding: 24px 20px; }
  .feature-card { padding: 24px 20px; }
  .how-col { padding: 24px 20px; }
}