:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: 56px;
}

.navbar {
    background-color: var(--primary-color);
}

.nav-link {
    color: rgba(255,255,255,0.8) !important;
}

.nav-link:hover {
    color: white !important;
}

.hero-section {
    background-color: var(--secondary-color);
    color: white;
    padding: 4rem 0;
    margin-bottom: 2rem;
}

.customization-card {
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.customization-card .card-header {
    background-color: var(--primary-color);
    color: white;
    font-weight: bold;
}

.config-item {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.config-item h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tip-box {
    background-color: #e8f4f8;
    border-left: 4px solid var(--accent-color);
    padding: 1rem;
    margin: 1rem 0;
}

footer {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
}

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