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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6; color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

header {
    background: rgba(255,255,255,0.95); backdrop-filter: blur(10px);
    position: sticky; top: 0; z-index: 100;
}

nav {
    max-width: 1200px; margin: 0 auto; padding: 1rem;
    display: flex; justify-content: space-between; align-items: center;
}

h1 { color: #764ba2; font-size: 1.8rem; }

nav ul {
    display: flex; list-style: none; gap: 2rem;
}

nav a { color: #333; text-decoration: none; font-weight: 500; }
nav a:hover { color: #667eea; }

.hero {
    text-align: center; padding: 4rem 2rem; color: white;
    max-width: 800px; margin: 0 auto;
}

.hero h2 { font-size: 3rem; margin-bottom: 1rem; }
.hero p { font-size: 1.3rem; margin-bottom: 2rem; opacity: 0.9; }

button {
    background: #ff6b6b; color: white; border: none;
    padding: 1rem 2rem; font-size: 1.1rem; border-radius: 50px;
    cursor: pointer; transition: all 0.3s;
}

button:hover { background: #ff5252; transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,0.2); }

.features {
    max-width: 1200px; margin: 4rem auto; padding: 0 2rem;
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem;
}

.feature {
    background: rgba(255,255,255,0.95); padding: 2rem; border-radius: 20px;
    text-align: center; box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature h3 { color: #764ba2; margin-bottom: 1rem; font-size: 1.5rem; }

footer {
    text-align: center; padding: 2rem; color: rgba(255,255,255,0.8);
    background: rgba(0,0,0,0.2);
}

/* Mobile */
@media (max-width: 768px) {
    nav ul { flex-direction: column; gap: 1rem; }
    .hero h2 { font-size: 2rem; }
}