body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: white;
}

header {
    text-align: center;
    padding: 50px 20px;
}

header h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
}

header p {
    opacity: 0.8;
}

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

h2 {
    margin-top: 40px;
    margin-bottom: 15px;
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 25px;
    border-radius: 15px;
    display: grid;
    gap: 10px;
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card label {
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.service-card label:hover {
    background: rgba(255,255,255,0.08);
}

input[type="checkbox"] {
    margin-right: 10px;
}

.primary-btn,
.checkout-btn {
    margin-top: 30px;
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    font-weight: bold;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.3s ease;
}

.primary-btn {
    background: #3b82f6;
    color: white;
}

.primary-btn:hover {
    background: #2563eb;
}

.cart {
    margin-top: 50px;
    background: rgba(255,255,255,0.07);
    padding: 25px;
    border-radius: 15px;
}

.cart ul {
    list-style: none;
    padding: 0;
}

.cart li {
    margin-bottom: 10px;
    padding: 5px 0;
}

.checkout-btn {
    background: #10b981;
    color: white;
}

.checkout-btn:hover {
    background: #059669;
}

footer {
    text-align: center;
    padding: 30px;
    margin-top: 60px;
    opacity: 0.7;
}