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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
}

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

nav ul li a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

nav ul li a:hover { color: #007bff; }

nav ul li a.active {
    color: #007bff;
    border-bottom-color: #007bff;
}

main { margin-top: 70px; }

section {
    padding: 3rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
    padding: 4rem 2rem;
}

.page-header h1 { font-size: 2.5rem; margin-bottom: 0.5rem; }
.page-header p { font-size: 1.1rem; opacity: 0.9; }

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: transform 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover { transform: translateY(-2px); }

.btn-outline {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-white {
    background-color: #fff;
    color: #667eea;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 2rem;
}

@media (max-width: 768px) {
    nav ul { gap: 1rem; }
    .page-header h1 { font-size: 1.8rem; }
}