/* Layout Adjustments */
.cart-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #1a1a1a;
}

.cart-container h2 {
    font-weight: 300;
    font-size: 32px;
    letter-spacing: 1px;
    margin-bottom: 40px;
}

.cart-main-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.checkout-forms-section {
    flex: 1 1 60%;
}

/* Premium Card Styling */
.checkout-card, .summary-card {
    background: #ffffff;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid #f4f4f4;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.03); /* Soft, diffused luxury shadow */
    margin-bottom: 30px;
}

.checkout-card h3, .summary-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 25px;
    border-bottom: 1px solid #f0f0f0;
    padding-bottom: 15px;
    letter-spacing: 0.5px;
}

/* Elegant Form Styling */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #888; /* Muted label color */
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid #e6e6e6;
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    background-color: #fafafa;
    color: #1a1a1a;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

/* Smooth Focus States */
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: #1a1a1a;
    background-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(26, 26, 26, 0.05);
}

/* Sleek Primary Buttons */
.btn-checkout, .btn-yoco {
    background-color: #1a1a1a; /* Stark, premium black */
    color: #ffffff;
    border: none;
    padding: 18px 30px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: transform 0.2s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    margin-top: 10px;
}

.btn-checkout:hover, .btn-yoco:hover {
    background-color: #333333;
    transform: translateY(-2px); /* Slight lift effect */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-back {
    background: none;
    border: none;
    color: #888;
    margin-top: 25px;
    cursor: pointer;
    font-size: 14px;
    text-align: center;
    width: 100%;
    transition: color 0.3s ease;
    text-decoration: none;
}

.btn-back:hover {
    color: #1a1a1a;
}

/* Summary Card Specifics */
.summary-card {
    flex: 1 1 30%;
    position: sticky;
    top: 20px; /* Keeps the summary in view as they scroll forms */
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 15px;
    margin-bottom: 15px;
    color: #555;
}

.summary-total {
    border-top: 1px solid #f0f0f0;
    margin-top: 20px;
    padding-top: 20px;
    font-weight: 600;
    font-size: 20px;
    color: #1a1a1a;
}

#yoco-payment-area p {
    color: #666;
    margin-bottom: 20px;
    font-size: 15px;
}

/* Minimalist Spinner */
.spinner {
    border: 3px solid rgba(0,0,0,0.05);
    border-top: 3px solid #1a1a1a;
    border-radius: 50%;
    width: 26px;
    height: 26px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin { 
    0% { transform: rotate(0deg); } 
    100% { transform: rotate(360deg); } 
}