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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background: #f5f5f5;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    background: white;
    border-bottom: 1px solid #e5e5e5;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 20px;
    font-weight: 600;
    color: #1a1a1a;
    text-decoration: none;
}

.logo span {
    color: #0066cc;
}

.nav {
    display: flex;
    gap: 25px;
}

.nav a {
    color: #4a4a4a;
    text-decoration: none;
    font-size: 14px;
}

.nav a:hover {
    color: #0066cc;
}

/* Main content */
main {
    background: white;
    border-radius: 12px;
    padding: 40px;
    margin: 30px auto;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #1a1a1a;
}

h2 {
    font-size: 20px;
    font-weight: 500;
    margin: 25px 0 15px 0;
    color: #2a2a2a;
}

p {
    margin-bottom: 15px;
    color: #4a4a4a;
}

ul {
    margin: 15px 0 15px 25px;
    color: #4a4a4a;
}

li {
    margin: 8px 0;
}

/* Footer */
footer {
    background: white;
    border-top: 1px solid #e5e5e5;
    padding: 30px 0;
    text-align: center;
    font-size: 13px;
    color: #8a8a8a;
}

footer a {
    color: #0066cc;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.footer-links {
    margin-bottom: 15px;
}

.footer-links a {
    margin: 0 10px;
}

/* Buttons */
.btn {
    display: inline-block;
    background: #0066cc;
    color: white;
    padding: 12px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    margin-top: 20px;
}

.btn:hover {
    background: #0052a3;
}

/* Hero */
.hero {
    text-align: center;
    padding: 40px 0;
}

.hero h1 {
    font-size: 36px;
    margin-bottom: 15px;
}

.hero p {
    font-size: 18px;
    color: #6a6a6a;
    max-width: 600px;
    margin: 0 auto;
}

/* Price */
.price {
    font-size: 32px;
    font-weight: 600;
    color: #0066cc;
}

/* Responsive */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 10px;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    main {
        padding: 20px;
        margin: 15px;
    }
    
    .hero h1 {
        font-size: 28px;
    }
}