:root {
  --bg: #0a0f0a;
  --bg-surface: #111a11;
  --bg-card: #162016;
  --fg: #e8ede8;
  --fg-muted: #8a9b8a;
  --accent: #4ade80;
  --accent-dim: #22c55e;
  --accent-glow: rgba(74, 222, 128, 0.15);
  --red-muted: #f87171;
  --border: #1e2e1e;
  --radius: 12px;
}

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

html {
  scroll-behavior: smooth;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero-bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(74, 222, 128, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 400px 600px at 80% 30%, rgba(34, 197, 94, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  bottom: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(74, 222, 128, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-glow);
  border: 1px solid rgba(74, 222, 128, 0.25);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 800;
  color: var(--fg);
  margin-bottom: 28px;
  max-width: 700px;
}

.hero-sub {
  font-size: 19px;
  color: var(--fg-muted);
  max-width: 580px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.price-amount {
  font-family: 'Syne', sans-serif;
  font-size: 42px;
  font-weight: 800;
  color: var(--accent);
}

.price-context {
  font-size: 16px;
  color: var(--fg-muted);
}

/* ===== COMPARISON ===== */
.comparison {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

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

.comparison-header h2 {
  font-size: clamp(32px, 4vw, 48px);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 520px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.compare-col {
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.compare-old {
  background: var(--bg-surface);
}

.compare-new {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(74, 222, 128, 0.05) 100%);
  border-color: rgba(74, 222, 128, 0.2);
}

.compare-label {
  font-family: 'Syne', sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin-bottom: 28px;
}

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

.compare-col li {
  padding: 10px 0;
  font-size: 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--fg-muted);
}

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

.x-mark {
  color: var(--red-muted);
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

.check-mark {
  color: var(--accent);
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.features h2 {
  font-size: clamp(32px, 4vw, 48px);
  margin-bottom: 56px;
}

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

.feature-card {
  padding: 36px 28px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(74, 222, 128, 0.3);
  transform: translateY(-2px);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 20px;
  opacity: 0.7;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--fg);
}

.feature-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

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

.closing h2 {
  font-size: clamp(32px, 4.5vw, 52px);
  margin-bottom: 28px;
  color: var(--fg);
}

.closing p {
  font-size: 19px;
  color: var(--fg-muted);
  line-height: 1.75;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero {
    padding: 100px 0 70px;
  }

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

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

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

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

  .closing {
    padding: 80px 0;
  }
}

@media (max-width: 480px) {
  .compare-col {
    padding: 28px 20px;
  }

  .feature-card {
    padding: 28px 20px;
  }
}