/* ============================================
   CHECKOUT PAGE - Thư Viện Luận Án
   Target: body.woocommerce-checkout form.woocommerce-checkout
   KHÔNG style body trực tiếp vì WooCommerce gán class lên <body>
   ============================================ */

/* ── CHECKOUT FORM CONTAINER ── */
body.woocommerce-checkout .about-section .woocommerce,
body.woocommerce-checkout form.woocommerce-checkout {
    max-width: 720px;
    margin: 0 auto;
}

body.woocommerce-checkout .about-section {
    padding: 40px 0 60px;
}

body.woocommerce-checkout .doc-section-card {
    background: none;
    box-shadow: none;
    padding: 0;
}

/* Layout chính - 2 cột */
body.woocommerce-checkout .col2-set {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

body.woocommerce-checkout .col2-set .col-1,
body.woocommerce-checkout .col2-set .col-2 {
    width: 100%;
}

/* Tiêu đề section */
body.woocommerce-checkout h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark, #1e293b);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary, #2196f3);
    display: inline-block;
}

body.woocommerce-checkout h3#ship-to-different-address {
    display: none;
}

/* ── FORM FIELDS ── */
body.woocommerce-checkout .woocommerce-billing-fields__field-wrapper,
body.woocommerce-checkout .woocommerce-additional-fields__field-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

body.woocommerce-checkout .form-row {
    margin-bottom: 0;
    padding: 0 !important;
    flex: 1 1 100%;
}

body.woocommerce-checkout .form-row-first {
    flex: 1 1 calc(50% - 8px);
}

body.woocommerce-checkout .form-row-last {
    flex: 1 1 calc(50% - 8px);
}

body.woocommerce-checkout .form-row-wide {
    flex: 1 1 100%;
}

/* Labels */
body.woocommerce-checkout label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark, #1e293b);
    margin-bottom: 6px;
}

body.woocommerce-checkout label .required {
    color: #ef4444;
    margin-left: 2px;
}

body.woocommerce-checkout label .optional {
    font-weight: 400;
    color: var(--text-muted, #94a3b8);
    font-size: 12px;
}

/* Input fields */
body.woocommerce-checkout .input-text,
body.woocommerce-checkout input[type="text"],
body.woocommerce-checkout input[type="email"],
body.woocommerce-checkout input[type="tel"],
body.woocommerce-checkout input[type="number"],
body.woocommerce-checkout input[type="password"],
body.woocommerce-checkout textarea,
body.woocommerce-checkout select {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: var(--font-base, 'Be Vietnam Pro', sans-serif);
    color: var(--text-dark, #1e293b);
    background: #fff;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    outline: none;
    transition: all 0.25s ease;
    box-sizing: border-box;
}

body.woocommerce-checkout .input-text:focus,
body.woocommerce-checkout input:focus,
body.woocommerce-checkout textarea:focus,
body.woocommerce-checkout select:focus {
    border-color: var(--primary, #2196f3);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.12);
}

body.woocommerce-checkout textarea {
    min-height: 80px;
    resize: vertical;
}

body.woocommerce-checkout input::placeholder,
body.woocommerce-checkout textarea::placeholder {
    color: #cbd5e1;
    font-weight: 400;
}

/* ── COUPON ── */
body.woocommerce-checkout .woocommerce-form-coupon-toggle {
    margin-bottom: 28px;
}

body.woocommerce-checkout .woocommerce-form-coupon-toggle .woocommerce-info {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border: 1px solid #bae6fd;
    border-radius: 12px;
    padding: 14px 20px;
    font-size: 14px;
    color: var(--text-dark, #1e293b);
    display: flex;
    align-items: center;
    gap: 8px;
}

body.woocommerce-checkout .woocommerce-form-coupon-toggle .woocommerce-info::before {
    content: '\f02b';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--primary, #2196f3);
    font-size: 16px;
}

body.woocommerce-checkout .woocommerce-form-coupon-toggle .woocommerce-info a {
    color: var(--primary, #2196f3);
    font-weight: 600;
    text-decoration: none;
}

body.woocommerce-checkout .woocommerce-form-coupon-toggle .woocommerce-info a:hover {
    text-decoration: underline;
}

/* Coupon form */
body.woocommerce-checkout .checkout_coupon {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 28px;
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

body.woocommerce-checkout .checkout_coupon p:first-child {
    flex: 1 1 100%;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-muted, #64748b);
}

body.woocommerce-checkout .checkout_coupon .input-text {
    flex: 1;
    min-width: 200px;
}

body.woocommerce-checkout .checkout_coupon .button {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    background: var(--primary, #2196f3);
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: var(--font-base, 'Be Vietnam Pro', sans-serif);
    white-space: nowrap;
}

body.woocommerce-checkout .checkout_coupon .button:hover {
    background: var(--primary-hover, #1976d2);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

/* ── THÔNG TIN BỔ SUNG ── */
body.woocommerce-checkout .woocommerce-additional-fields {
    margin-top: 28px;
}

body.woocommerce-checkout .woocommerce-additional-fields h3 {
    font-size: 18px;
}

/* ── ORDER REVIEW  ── */
body.woocommerce-checkout #order_review_heading {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark, #1e293b);
    margin-top: 40px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary, #2196f3);
    display: inline-block;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table thead th {
    background: linear-gradient(135deg, #1a3a5c, #0f2744);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 14px 20px;
    text-align: left;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table thead th:last-child {
    text-align: right;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table td {
    padding: 14px 20px;
    font-size: 14px;
    color: var(--text-dark, #1e293b);
    border-bottom: 1px solid #f1f5f9;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table td:last-child {
    text-align: right;
    font-weight: 600;
    white-space: nowrap;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table .cart_item:last-child td {
    border-bottom: 1px solid #e2e8f0;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table tfoot th {
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark, #1e293b);
    text-align: left;
    border-bottom: 1px solid #f1f5f9;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table tfoot td {
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 600;
    text-align: right;
    border-bottom: 1px solid #f1f5f9;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table tfoot tr:last-child th,
body.woocommerce-checkout .woocommerce-checkout-review-order-table tfoot tr:last-child td {
    font-size: 18px;
    font-weight: 700;
    color: var(--secondary, #22c55e);
    border-bottom: none;
    padding-top: 16px;
    padding-bottom: 16px;
}

body.woocommerce-checkout .woocommerce-checkout-review-order-table .product-quantity {
    color: var(--text-muted, #94a3b8);
    font-weight: 400;
}

/* ── PAYMENT METHODS ── */
body.woocommerce-checkout #payment {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 24px;
    margin-top: 24px;
}

body.woocommerce-checkout #payment .wc_payment_methods {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

body.woocommerce-checkout #payment .wc_payment_method {
    margin-bottom: 12px;
    background: #fff;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    padding: 16px;
    transition: all 0.25s ease;
}

body.woocommerce-checkout #payment .wc_payment_method:last-child {
    margin-bottom: 0;
}

body.woocommerce-checkout #payment .wc_payment_method input[type="radio"] {
    margin-right: 10px;
    accent-color: var(--primary, #2196f3);
    width: 18px;
    height: 18px;
    vertical-align: middle;
}

body.woocommerce-checkout #payment .wc_payment_method label {
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: inline;
    margin-bottom: 0;
}

body.woocommerce-checkout #payment .payment_box {
    margin-top: 12px;
    padding: 12px 16px;
    background: #f0f9ff;
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-muted, #64748b);
    line-height: 1.6;
}

/* No payment method notice */
body.woocommerce-checkout .woocommerce-notice--info,
body.woocommerce-checkout .woocommerce-info:not(.woocommerce-form-coupon-toggle .woocommerce-info) {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 10px;
    padding: 14px 20px;
    font-size: 14px;
    color: #856404;
    margin-bottom: 20px;
}

/* ── PRIVACY POLICY ── */
body.woocommerce-checkout .woocommerce-privacy-policy-text {
    font-size: 13px;
    color: var(--text-muted, #64748b);
    line-height: 1.7;
    margin-bottom: 20px;
}

body.woocommerce-checkout .woocommerce-privacy-policy-text a {
    color: var(--primary, #2196f3);
    text-decoration: none;
    font-weight: 500;
}

body.woocommerce-checkout .woocommerce-privacy-policy-text a:hover {
    text-decoration: underline;
}

/* ── PLACE ORDER BUTTON ── */
body.woocommerce-checkout #place_order {
    width: 100%;
    padding: 16px 32px;
    font-size: 17px;
    font-weight: 700;
    font-family: var(--font-base, 'Be Vietnam Pro', sans-serif);
    color: #fff;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.3px;
}

body.woocommerce-checkout #place_order:hover {
    background: linear-gradient(135deg, #16a34a, #15803d);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.35);
}

body.woocommerce-checkout #place_order:active {
    transform: translateY(0);
}

/* ── NOTICES ── */
body.woocommerce-checkout .woocommerce-error {
    background: #fef2f2;
    border: 1px solid #fca5a5;
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 24px;
    list-style: none;
    color: #dc2626;
    font-size: 14px;
}

body.woocommerce-checkout .woocommerce-message {
    background: #f0fdf4;
    border: 1px solid #86efac;
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 24px;
    color: #166534;
    font-size: 14px;
}

/* ── VALIDATION ── */
body.woocommerce-checkout .woocommerce-invalid input,
body.woocommerce-checkout .woocommerce-invalid textarea {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

body.woocommerce-checkout .woocommerce-validated input,
body.woocommerce-checkout .woocommerce-validated textarea {
    border-color: #22c55e !important;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
    body.woocommerce-checkout .about-section {
        padding: 24px 0 40px;
    }

    body.woocommerce-checkout .form-row-first,
    body.woocommerce-checkout .form-row-last {
        flex: 1 1 100%;
    }

    body.woocommerce-checkout .checkout_coupon {
        flex-direction: column;
    }

    body.woocommerce-checkout .checkout_coupon .button {
        width: 100%;
    }

    body.woocommerce-checkout #payment {
        padding: 16px;
    }

    body.woocommerce-checkout .woocommerce-checkout-review-order-table td,
    body.woocommerce-checkout .woocommerce-checkout-review-order-table th {
        padding: 10px 14px;
        font-size: 13px;
    }
}

/* ============================================
   CART PAGE
   ============================================ */
body.woocommerce-cart .about-section .woocommerce {
    max-width: 900px;
    margin: 0 auto;
}

body.woocommerce-cart .doc-section-card {
    background: none;
    box-shadow: none;
    padding: 0;
}

body.woocommerce-cart table.shop_table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    margin-bottom: 24px;
}

body.woocommerce-cart table.shop_table thead th {
    background: linear-gradient(135deg, #1a3a5c, #0f2744);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    padding: 14px 16px;
}

body.woocommerce-cart table.shop_table td {
    padding: 14px 16px;
    font-size: 14px;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
}

body.woocommerce-cart table.shop_table td img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

body.woocommerce-cart .cart_totals h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
}

body.woocommerce-cart .cart_totals table {
    width: 100%;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

body.woocommerce-cart .cart_totals th,
body.woocommerce-cart .cart_totals td {
    padding: 14px 20px;
    font-size: 15px;
}

body.woocommerce-cart .wc-proceed-to-checkout a.checkout-button {
    display: block;
    width: 100%;
    padding: 16px;
    font-size: 16px;
    font-weight: 700;
    font-family: var(--font-base, 'Be Vietnam Pro', sans-serif);
    color: #fff;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    border: none;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

body.woocommerce-cart .wc-proceed-to-checkout a.checkout-button:hover {
    background: linear-gradient(135deg, #16a34a, #15803d);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.35);
}

body.woocommerce-cart .quantity .qty {
    width: 50px;
    text-align: center;
    padding: 8px;
    border: 1.5px solid #e2e8f0;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-base, 'Be Vietnam Pro', sans-serif);
}

body.woocommerce-cart .product-remove a {
    color: #ef4444;
    font-size: 20px;
    text-decoration: none;
}

body.woocommerce-cart .coupon {
    display: flex;
    gap: 10px;
    align-items: center;
}

body.woocommerce-cart .coupon .input-text {
    padding: 10px 14px;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    font-size: 14px;
    font-family: var(--font-base, 'Be Vietnam Pro', sans-serif);
    outline: none;
}

body.woocommerce-cart .coupon .button,
body.woocommerce-cart .actions .button {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    background: #1a3a5c;
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--font-base, 'Be Vietnam Pro', sans-serif);
    transition: all 0.25s ease;
}

body.woocommerce-cart .coupon .button:hover,
body.woocommerce-cart .actions .button:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}
