:root {
    --checkout-primary: #959581;
    --checkout-secondary: #DADED8;
    --checkout-light: #F5F6F3;
    --checkout-white: #ffffff;
    --checkout-dark: #30312C;
    --checkout-muted: #777970;
    --checkout-border: #D9DCD4;
}

/* ==========================================
   MAIN SECTION
=========================================== */
.checkout-section {
    padding: 70px 20px;
    background: var(--checkout-light);
    font-family: Arial, sans-serif;
    color: var(--checkout-dark);
}

.checkout-container {
    max-width: 1180px;
    margin: auto;
}

/* ==========================================
   GRID
=========================================== */
.checkout-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 30px;
    align-items: start;
}

/* ==========================================
   SECTION HEADER
=========================================== */
.checkout-section-header {
    display: flex;
    justify-content: space-between;
    align-items: end;
    margin-bottom: 18px;
}

.checkout-eyebrow {
    display: block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--checkout-primary);
    margin-bottom: 5px;
}

.checkout-heading {
    margin: 0;
    font-size: 24px;
    line-height: 1.2;
    font-weight: 700;
    color: var(--checkout-dark);
}

/* ==========================================
   ADD ADDRESS BUTTON
=========================================== */
.checkout-add-btn {
    border: 0;
    background: var(--checkout-primary);
    color: #fff;
    padding: 11px 18px;
    border-radius: 7px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: .25s ease;
}

.checkout-add-btn i {
    margin-right: 6px;
}

.checkout-add-btn:hover {
    background: var(--checkout-dark);
    transform: translateY(-1px);
}

/* ==========================================
   ADDRESS CARD
=========================================== */
.checkout-address-card {
    background: var(--checkout-white);
    border: 1px solid var(--checkout-border);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    gap: 18px;
    box-shadow: 0 5px 20px rgba(50, 55, 45, .05);
}

.address-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 50%;
    background: var(--checkout-secondary);
    color: var(--checkout-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
}

.address-details {
    width: 100%;
}

.address-name-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.address-name-row h3 {
    margin: 0 0 12px;
    font-size: 17px;
}

.address-edit-btn {
    background: transparent;
    border: 0;
    color: var(--checkout-primary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.address-edit-btn:hover {
    color: var(--checkout-dark);
}

.address-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--checkout-muted);
    font-size: 13px;
}

.address-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.address-info i {
    width: 15px;
    color: var(--checkout-primary);
}

/* ==========================================
   PAYMENT
=========================================== */
.payment-section {
    margin-top: 40px;
}

.payment-heading {
    margin-bottom: 15px;
}

.payment-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
    background: #fff;
    border: 1px solid var(--checkout-border);
    border-radius: 10px;
    padding: 17px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: .25s ease;
}

.payment-option:hover {
    border-color: var(--checkout-primary);
}

.payment-option.active {
    border-color: var(--checkout-primary);
    background: #fafbf9;
    box-shadow: 0 4px 14px rgba(149, 149, 129, .10);
}

.payment-option input {
    position: absolute;
    opacity: 0;
}

.payment-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 8px;
    background: var(--checkout-secondary);
    color: var(--checkout-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 17px;
}

.payment-option.active .payment-icon {
    background: var(--checkout-primary);
    color: #fff;
}

.payment-content {
    flex: 1;
}

.payment-content h3 {
    margin: 0 0 4px;
    font-size: 14px;
}

.payment-content p {
    margin: 0;
    font-size: 11px;
    color: var(--checkout-muted);
}

.payment-radio {
    width: 18px;
    height: 18px;
    border: 1.5px solid #BDC1B8;
    border-radius: 50%;
    position: relative;
}

.payment-option.active .payment-radio {
    border-color: var(--checkout-primary);
}

.payment-option.active .payment-radio::after {
    content: "";
    width: 8px;
    height: 8px;
    background: var(--checkout-primary);
    border-radius: 50%;
    position: absolute;
    top: 3px;
    left: 3px;
}

/* ==========================================
   ORDER SUMMARY
=========================================== */
.order-summary {
    background: #fff;
    border: 1px solid var(--checkout-border);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 7px 25px rgba(50, 55, 45, .06);
    position: sticky;
    top: 20px;
}

.summary-header h2 {
    margin: 0 0 20px;
    font-size: 21px;
}

.summary-product {
    display: flex;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid #E5E7E2;
}

.summary-product-img {
    width: 65px;
    height: 65px;
    min-width: 65px;
    overflow: hidden;
    border-radius: 8px;
    background: var(--checkout-light);
}

.summary-product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.summary-product-info h3 {
    margin: 0 0 5px;
    font-size: 12px;
    line-height: 1.4;
}

.summary-product-info span {
    display: block;
    font-size: 10px;
    color: var(--checkout-muted);
    margin-bottom: 5px;
}

.summary-product-info strong {
    font-size: 13px;
}

/* ==========================================
   SUMMARY CALCULATION
=========================================== */
.summary-calculation {
    padding-top: 16px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    margin-bottom: 12px;
    color: var(--checkout-muted);
}

.summary-row strong {
    color: var(--checkout-dark);
}

.free-shipping {
    color: var(--checkout-primary) !important;
}

.summary-divider {
    border-top: 1px dashed #D5D8D1;
    margin: 15px 0;
}

.summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    margin-bottom: 20px;
}

.summary-total strong {
    font-size: 17px;
}

/* ==========================================
   PLACE ORDER
=========================================== */
.place-order-btn {
    width: 100%;
    border: 0;
    background: var(--checkout-primary);
    color: #fff;
    padding: 15px;
    border-radius: 5px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .5px;
    cursor: pointer;
    transition: .25s ease;
}

.place-order-btn:hover {
    background: var(--checkout-dark);
}

.place-order-btn i {
    margin-right: 6px;
}

.secure-text {
    text-align: center;
    margin: 12px 0 0;
    font-size: 10px;
    color: var(--checkout-muted);
}

.secure-text i {
    color: var(--checkout-primary);
    margin-right: 4px;
}

/* ==========================================
   MODAL OVERLAY
=========================================== */
.address-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(35, 38, 32, .60);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: .25s ease;
}

.address-modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* ==========================================
   MODAL
=========================================== */
.address-modal {
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    overflow-y: auto;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, .25);
    padding: 28px;
    transform: translateY(20px) scale(.98);
    transition: .25s ease;
}

.address-modal-overlay.show .address-modal {
    transform: translateY(0) scale(1);
}

/* ==========================================
   MODAL HEADER
=========================================== */
.address-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
}

.address-modal-header h2 {
    margin: 0;
    font-size: 22px;
}

.modal-close-btn {
    width: 34px;
    height: 34px;
    border: 1px solid var(--checkout-border);
    background: #fff;
    border-radius: 50%;
    color: var(--checkout-muted);
    cursor: pointer;
    transition: .2s ease;
}

.modal-close-btn:hover {
    background: var(--checkout-secondary);
    color: var(--checkout-dark);
}

/* ==========================================
   MODAL FORM
=========================================== */
.modal-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 17px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 11px;
    font-weight: 700;
    margin-bottom: 7px;
    color: var(--checkout-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--checkout-border);
    border-radius: 7px;
    padding: 12px 13px;
    outline: none;
    font-size: 13px;
    color: var(--checkout-dark);
    background: #fff;
    transition: .2s ease;
}

.form-group textarea {
    height: 90px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--checkout-primary);
    box-shadow: 0 0 0 3px rgba(149, 149, 129, .12);
}

/* ==========================================
   DEFAULT ADDRESS
=========================================== */
.default-address {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-top: 20px;
    font-size: 12px;
    cursor: pointer;
}

.default-address input {
    display: none;
}

.custom-checkbox {
    width: 17px;
    height: 17px;
    background: var(--checkout-primary);
    color: #fff;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
}

.default-address input:not(:checked)+.custom-checkbox {
    background: #fff;
    border: 1px solid var(--checkout-border);
    color: transparent;
}

/* ==========================================
   MODAL ACTIONS
=========================================== */
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #E7E9E5;
}

.modal-cancel-btn,
.modal-save-btn {
    border: 0;
    padding: 12px 25px;
    border-radius: 7px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.modal-cancel-btn {
    background: var(--checkout-secondary);
    color: var(--checkout-dark);
}

.modal-save-btn {
    background: var(--checkout-primary);
    color: #fff;
}

.modal-cancel-btn:hover {
    background: #cdd2ca;
}

.modal-save-btn:hover {
    background: var(--checkout-dark);
}

/* ==========================================
   RESPONSIVE
=========================================== */
@media (max-width: 991px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }

    .order-summary {
        position: static;
    }
}

@media (max-width: 600px) {
    .checkout-section {
        padding: 40px 15px;
    }

    .checkout-section-header {
        align-items: flex-start;
        gap: 15px;
        flex-direction: column;
    }

    .checkout-add-btn {
        width: 100%;
    }

    .checkout-address-card {
        padding: 18px;
    }

    .address-name-row {
        align-items: flex-start;
        gap: 10px;
    }

    .address-info {
        font-size: 12px;
    }

    .modal-form-grid {
        grid-template-columns: 1fr;
    }

    .form-group-full {
        grid-column: auto;
    }

    .address-modal {
        padding: 20px;
        max-height: 95vh;
    }

    .modal-actions {
        flex-direction: column-reverse;
    }

    .modal-cancel-btn,
    .modal-save-btn {
        width: 100%;
    }
}

/* Prevent body scrolling while modal is open */
body.modal-open {
    overflow: hidden;
}