:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #10b981;
    --danger: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-900: #111827;
}

.breadcrumb-nav {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.breadcrumb-nav .container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb-nav a {
    color: var(--gray-600);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb-nav a:hover {
    color: var(--primary);
}

.breadcrumb-nav .current {
    color: var(--gray-900);
    font-weight: 500;
}

.breadcrumb-nav .separator {
    color: var(--gray-300);
}

/* Progress Steps */
.checkout-progress {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin: 2rem auto 3rem;
    max-width: 600px;
    padding: 0 1rem;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    position: relative;
}

.progress-step::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    width: 100%;
    height: 2px;
    background: var(--gray-200);
    z-index: -1;
}

.progress-step:last-child::after {
    display: none;
}

.progress-step.active .step-circle {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.progress-step.completed .step-circle {
    background: var(--success);
    color: white;
    border-color: var(--success);
}

.progress-step.completed::after {
    background: var(--success);
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--gray-300);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-600);
    transition: all 0.3s;
}

.step-label {
    font-size: 0.75rem;
    color: var(--gray-600);
    font-weight: 500;
    text-align: center;
}

.progress-step.active .step-label {
    color: var(--primary);
    font-weight: 600;
}

/* Empty Cart State */
.empty-cart-hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    border-radius: 1rem;
    margin: 2rem 0;
}

.empty-cart-icon {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-cart-hero h2 {
    font-size: 1.875rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.empty-cart-hero p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

/* Cart Items */
.cart-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.cart-item {
    display: grid;
    grid-template-columns: 80px 1fr auto;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--gray-100);
    align-items: start;
}

.cart-item:last-child {
    border-bottom: none;
}

.item-image {
    width: 80px;
    height: 80px;
    border-radius: 0.5rem;
    object-fit: cover;
}

.item-details {
    min-width: 0;
}

.item-details h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.item-modifiers {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.modifier-badge {
    background: var(--gray-100);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--gray-700);
}

.qty-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.qty-btn {
    width: 36px;
    height: 36px;
    border-radius: 0.375rem;
    border: 1px solid var(--gray-300);
    background: white;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(37,99,235,0.05);
}

.qty-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.qty-display {
    min-width: 50px;
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    padding: 0 0.5rem;
}

.remove-btn {
    color: var(--danger);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    font-size: 0.875rem;
    margin-left: 0.5rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.remove-btn:hover {
    background: rgba(239,68,68,0.1);
    border-radius: 0.375rem;
}

.item-price-section {
    text-align: right;
}

.item-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.item-unit-price {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
}

/* Order Summary Card */
.summary-card {
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    position: sticky;
    top: 2rem;
}

.summary-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

.summary-line {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.summary-line:last-child {
    border-bottom: none;
}

.summary-total {
    font-size: 1.5rem;
    font-weight: 700;
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 2px solid var(--gray-300);
    color: var(--primary);
}

.btn-checkout {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 6px rgba(37,99,235,0.2);
}

.btn-checkout:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(37,99,235,0.3);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    box-shadow: none;
}

.btn-secondary:hover {
    background: var(--gray-50);
    box-shadow: none;
}

/* Checkout Form Sections */
.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2rem;
    margin-top: 2rem;
}

.form-section {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

.form-section h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--gray-200);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.form-group label span {
    color: var(--danger);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: 0.5rem;
}

.checkbox-label input {
    width: auto;
}



.btn-update-cart {
    width: 100%;
    padding: 0.875rem 1.5rem;
    background: #6b7280;
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-update-cart:hover {
    background: #4b5563;
}

.btn-update-cart:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Quantity Input (hidden but functional) */
.qty-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

/* Spinner for loading states */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Button loading states */
.qty-btn:disabled,
.remove-btn:disabled,
.btn-checkout:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Secondary button style */
.btn-secondary {
    background: white !important;
    color: var(--primary) !important;
    border: 2px solid var(--primary) !important;
}

.btn-secondary:hover {
    background: var(--gray-50) !important;
}

/* Confirmation animation */
@keyframes itemRemoved {
    0% {
        opacity: 1;
        transform: translateX(0);
    }
    100% {
        opacity: 0;
        transform: translateX(100px);
    }
}

.cart-item.removing {
    animation: itemRemoved 0.3s ease forwards;
}


@media (max-width: 968px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .cart-item {
        grid-template-columns: 60px 1fr;
        gap: 1rem;
    }
    
    .item-image {
        width: 60px;
        height: 60px;
    }
    
    .item-price-section {
        grid-column: 1 / -1;
        margin-top: 1rem;
        text-align: left;
        padding-top: 1rem;
        border-top: 1px solid var(--gray-200);
    }
}


@keyframes spin {
    to { transform: rotate(360deg); }
}




/* Payment/Shipping Method Cards */

.method-option {
    display: flex;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.method-option:hover {
    border-color: #2563eb;
    background: #f9fafb;
}

.method-option input[type="radio"] {
    margin-right: 1rem;
}

.method-option input[type="radio"]:checked ~ .method-content {
    color: #2563eb;
}

.method-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-left: 1.5rem;
    flex:1
}

.method-info {flex:1}
.method-info h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.method-info p {
    margin: 0.25rem 0 0 0;
    font-size: 0.875rem;
    color: #6b7280;
}

.method-price {
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
}

.security-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--gray-50);
    border-radius: 0.5rem;
    margin-top: 1.5rem;
    color: var(--gray-600);
    font-size: 0.875rem;
}