* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; color: #1f2937; line-height: 1.6; }
nav { padding: 1rem 2rem; border-bottom: 1px solid #e5e7eb; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
nav a { color: #2563eb; text-decoration: none; }
.hero { min-height: 82vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #2563eb 0%, #0f766e 100%); color: white; text-align: center; padding: 2rem; }
.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.hero p { font-size: 1.2rem; max-width: 680px; margin: 0 auto 2rem; }
.btn { display: inline-block; padding: 12px 32px; background: #ffffff; color: #2563eb; border-radius: 8px; text-decoration: none; font-weight: 600; }
body > h1, body > p, body > form, .pricing, .features { max-width: 960px; margin-left: auto; margin-right: auto; }
body > h1 { margin-top: 2rem; margin-bottom: 1rem; padding: 0 1rem; }
body > p { padding: 0 1rem; }
form { display: flex; flex-direction: column; gap: 1rem; max-width: 640px; padding: 0 1rem; }
input, textarea { padding: 12px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 1rem; }
button { padding: 12px; background: #2563eb; color: white; border: none; border-radius: 8px; font-size: 1rem; cursor: pointer; }
.pricing { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; padding: 0 1rem; }
.card, .feature { border: 1px solid #e5e7eb; border-radius: 8px; padding: 2rem; background: #ffffff; }
.card { width: 300px; text-align: center; }
.card .price { font-size: 2rem; color: #2563eb; margin-bottom: 1rem; }
.card ul { list-style: none; text-align: left; }
.card li { padding: 0.5rem 0; border-bottom: 1px solid #eef2f7; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; padding: 0 1rem; }
.feature h3 { margin-bottom: 0.5rem; color: #2563eb; }
@media (max-width: 640px) { .hero h1 { font-size: 2.2rem; } nav { padding: 1rem; } }