:root {
    --primary-color: #101e40;
    --primary-hover: #05142a;
    --secondary-color: #2c3e50;
    --light-bg: #f8f9fa;
    --border-color: #e2e8f0;
    --text-color: #333;
    --text-muted: #6c757d;
    --card-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

body {
    background-color: var(--light-bg);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
}

.pricing-header {
    max-width: 800px;
    margin-bottom: 3rem;
}

.pricing-card {
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

    .pricing-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
    }

.card-header {
    background-color: var(--primary-color) !important;
    color: white;
    padding: 1.5rem 1rem;
    border-bottom: none;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 1rem;
}

.period {
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.feature-list {
    padding-left: 0;
    list-style-type: none;
    margin: 2rem 0;
}

    .feature-list li {
        padding: 0.75rem 0;
        display: flex;
        align-items: center;
        color: var(--secondary-color);
        font-size: 1rem;
    }

        .feature-list li::before {
            content: "✓";
            color: var(--primary-color);
            font-weight: bold;
            margin-right: 12px;
        }

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 6px;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

    .btn-primary:hover {
        background-color: var(--primary-hover);
        border-color: var(--primary-hover);
        transform: translateY(-2px);
    }

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 6px;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

    .btn-outline-primary:hover {
        background-color: var(--primary-color);
        color: white;
        transform: translateY(-2px);
    }

.card-selected {
    transform: scale(1.02);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
}

.card-body {
    padding: 2rem;
}

@media (max-width: 768px) {
    .pricing-card {
        margin-bottom: 2rem;
    }

    .container {
        padding: 2rem 1.5rem;
    }
}