:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #f8fafc;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
header {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary); text-decoration: none; }
nav a { margin-left: 2rem; color: var(--text-light); text-decoration: none; transition: color 0.2s; }
nav a:hover { color: var(--primary); }
.hero {
    padding: 5rem 0;
    text-align: center;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}
.hero h1 { font-size: 3rem; margin-bottom: 1rem; color: var(--text); }
.hero p { font-size: 1.25rem; color: var(--text-light); max-width: 600px; margin: 0 auto 2rem; }
.btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s;
}
.btn:hover { background: var(--primary-dark); }
.features { padding: 5rem 0; }
.features h2 { text-align: center; margin-bottom: 3rem; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.feature-card {
    background: #fff;
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    transition: box-shadow 0.2s;
}
.feature-card:hover { box-shadow: 0 10px 40px rgba(0,0,0,0.08); }
.feature-card h3 { margin-bottom: 0.75rem; color: var(--text); }
.feature-card p { color: var(--text-light); font-size: 0.95rem; }
.icon { font-size: 2rem; margin-bottom: 1rem; }
footer {
    background: #fff;
    border-top: 1px solid var(--border);
    padding: 3rem 0;
    margin-top: 5rem;
}
footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
.footer-col h4 { margin-bottom: 1rem; }
.footer-col a { display: block; color: var(--text-light); text-decoration: none; margin-bottom: 0.5rem; }
.footer-col a:hover { color: var(--primary); }
.copyright { text-align: center; padding: 1.5rem 0; color: var(--text-light); border-top: 1px solid var(--border); margin-top: 2rem; }
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    nav { display: none; }
}