:root {
  --blue: #2563eb; --blue-dark: #1e40af; --blue-bg: #eff6ff;
  --purple: #7c3aed; --purple-dark: #5b21b6; --purple-bg: #f5f3ff;
  --green: #059669; --green-dark: #047857; --green-bg: #ecfdf5;
  --text: #1f2937; --text-light: #6b7280; --white: #ffffff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; color: var(--text); line-height: 1.6; }
header { background: #059669; color: var(--white); padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; }
header h1 { font-size: 1.5rem; font-weight: 700; }
header .tagline { font-size: 0.875rem; opacity: 0.9; }
nav { display: flex; align-items: center; gap: 2rem; }
nav a { color: var(--white); text-decoration: none; font-weight: 500; }
main { padding: 2rem; max-width: 1200px; margin: 0 auto; }
section { margin-bottom: 3rem; }
h2 { font-size: 1.75rem; margin-bottom: 1rem; color: var(--text); border-bottom: 2px solid #059669; padding-bottom: 0.5rem; display: inline-block; }
h3 { font-size: 1.25rem; margin-bottom: 0.75rem; color: var(--text); }
p { margin-bottom: 1rem; color: var(--text-light); }
.card { background: #ecfdf5; border: 1px solid #e5e7eb; border-radius: 8px; padding: 1.5rem; margin-bottom: 1rem; }
.button { display: inline-block; background: #059669; color: var(--white); padding: 0.75rem 1.5rem; border-radius: 6px; text-decoration: none; font-weight: 600; transition: opacity 0.2s; }
.button:hover { opacity: 0.9; }
.price { font-size: 1.5rem; font-weight: 700; color: #059669; }
.tagline { font-style: italic; color: var(--text-light); margin-bottom: 1.5rem; }
footer { background: #111827; color: #9ca3af; padding: 2rem; text-align: center; font-size: 0.875rem; }
footer a { color: #d1d5db; text-decoration: underline; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }