body {
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background: #f8fafc;
    color: #1e293b;
    margin: 0;
    padding: 0;
}

header {
    background: #0f172a;
    color: #fff;
    padding: 25px;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 24px;
}

header p {
    margin: 5px 0 0 0;
    font-size: 13px;
    color: #94a3b8;
}

.container {
    max-width: 1000px;
    margin: 30px auto;
    padding: 0 15px;
}

.alert {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
    font-size: 14px;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
}

.section-heading {
    font-size: 18px;
    border-bottom: 2px solid #cbd5e1;
    padding-bottom: 8px;
    margin-bottom: 20px;
    color: #0f172a;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.product-card {
    background: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-card h3 {
    margin-top: 0;
    color: #0f172a;
    font-size: 18px;
}

.product-desc {
    font-size: 13px;
    color: #64748b;
}

.price {
    font-size: 18px;
    font-weight: bold;
    color: #16a34a;
    margin: 10px 0;
}

.order-form {
    background: #f1f5f9;
    padding: 12px;
    border-radius: 6px;
    margin-top: 15px;
}

.form-group {
    margin-bottom: 10px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 3px;
    color: #475569;
}

.form-control {
    width: 100%;
    padding: 7px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 12px;
    font-family: inherit;
}

.btn-order {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 8px 12px;
    width: 100%;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.2s;
}

.btn-order:hover {
    background: #1d4ed8;
}

.no-product {
    grid-column: 1 / -1;
    text-align: center;
    color: #64748b;
}