:root {
  --bg-hero-start: #15294a;
  --bg-hero-end: #1f3766;
  --text-on-dark: #f5f7fc;
  --text-primary: #0f172a;
  --muted-dark: rgba(245, 247, 252, 0.72);
  --muted-light: #475569;
  --surface-dark: rgba(11, 24, 44, 0.6);
  --surface-light: #ffffff;
  --border-dark: rgba(255, 255, 255, 0.14);
  --border-light: rgba(15, 23, 42, 0.08);
  --shadow-dark: 0 24px 50px rgba(8, 14, 31, 0.45);
  --shadow-light: 0 24px 50px rgba(15, 23, 42, 0.12);
  --brand-primary: #2f80ed;
  --brand-accent: #12b886;
  --brand-gradient: linear-gradient(135deg, #ffd700, #ffa500);
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  margin: 0;
}

.page-dark {
  background: linear-gradient(135deg, var(--bg-hero-start), var(--bg-hero-end));
  color: var(--text-on-dark);
}

.page-light {
  background: var(--surface-light);
  color: var(--text-primary);
}

.surface {
  background: var(--surface-dark);
  border: 1px solid var(--border-dark);
  border-radius: 20px;
  padding: clamp(28px, 4vw, 40px);
  box-shadow: var(--shadow-dark);
}

.page-light .surface {
  background: var(--surface-light);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-light);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted-dark);
}

.page-light .eyebrow {
  color: rgba(15, 23, 42, 0.6);
}

.muted-text {
  color: var(--muted-dark);
}

.page-light .muted-text {
  color: rgba(15, 23, 42, 0.7);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--brand-primary);
  color: #ffffff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(47, 128, 237, 0.35);
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text-on-dark);
}

.page-light .btn-secondary {
  border-color: rgba(47, 128, 237, 0.3);
  color: var(--brand-primary);
}

.btn-secondary:hover {
  transform: translateY(-2px);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(17, 43, 94, 0.45);
  color: var(--text-on-dark);
  font-weight: 600;
  font-size: 0.85rem;
}

.page-light .badge {
  background: rgba(47, 128, 237, 0.12);
  color: var(--brand-primary);
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.feature-list li {
  display: flex;
  gap: 12px;
  align-items: center;
  color: var(--muted-dark);
}

.page-light .feature-list li {
  color: rgba(15, 23, 42, 0.7);
}