/* ============================================
   Unified Checkout Page Styles
   Clone Phone Store - Mobile-First Design
   Following iOS/Android UI Design Guidelines
   ============================================ */

/* --- Base Variables --- */
:root {
  --checkout-primary: #6366f1;
  --checkout-primary-dark: #4f46e5;
  --checkout-success: #10b981;
  --checkout-danger: #ef4444;
  --checkout-bg: #f5f5f7;
  --checkout-card: #ffffff;
  --checkout-dark: #1d1d1f;
  --checkout-dark-light: #2d2d2f;
  --checkout-gray-100: #f5f5f7;
  --checkout-gray-200: #e5e5ea;
  --checkout-gray-300: #c5c5c7;
  --checkout-gray-400: #a1a1a6;
  --checkout-gray-500: #86868b;
  --checkout-gray-600: #6e6e73;
  --checkout-radius-sm: 10px;
  --checkout-radius-md: 14px;
  --checkout-radius-lg: 18px;
  --checkout-radius-xl: 22px;
  --touch-target: 44px; /* Apple HIG minimum */
  --touch-target-lg: 48px; /* Material Design minimum */
}

/* --- Page Background --- */
.unified-checkout-page {
    background: var(--checkout-bg);
    min-height: 100vh;
    padding-top: 20px;
    padding-bottom: calc(var(--touch-target-lg) * 2);
}

.checkout-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* --- Header --- */
.checkout-header {
    text-align: center;
    padding: 20px 0 24px;
}

.checkout-title {
    font-size: 2em;
    font-weight: 700;
    color: var(--checkout-dark);
    margin: 0 0 6px;
}

.checkout-subtitle {
    font-size: 0.95em;
    color: var(--checkout-gray-500);
    margin: 0 0 20px;
}

/* --- Progress Steps --- */
.checkout-steps {
    display: inline-flex;
    align-items: center;
    gap: 0;
    background: var(--checkout-card);
    padding: 10px 20px;
    border-radius: 50px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    min-width: 48px;
}

.step-number {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--checkout-gray-200);
    color: var(--checkout-gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8em;
    font-weight: 700;
    transition: all 0.3s ease;
}

.step.active .step-number {
    background: var(--checkout-dark);
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.step-label {
    font-size: 0.65em;
    color: var(--checkout-gray-400);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.step.active .step-label {
    color: var(--checkout-dark);
}

.step-line {
    width: 36px;
    height: 2px;
    background: var(--checkout-gray-200);
    margin: 0 6px;
    margin-bottom: 16px;
    border-radius: 1px;
}

.step-line.active {
    background: var(--checkout-dark);
}

/* --- Layout --- */
.checkout-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: stretch;   /* columns grow to same height */
    padding-bottom: 40px;
}

/* Grid columns must be allowed to shrink below their content's intrinsic
   width, otherwise a long unbreakable product title forces the whole
   column (and everything in it) wider than the viewport. */
.checkout-form-section,
.checkout-cart-section {
    min-width: 0;
}

/* --- Section Cards --- */
.section-card {
    background: var(--checkout-card);
    border-radius: var(--checkout-radius-xl);
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    transition: box-shadow 0.3s ease;
}

.section-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.section-title {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--checkout-dark);
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--checkout-gray-200);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-icon-svg {
    width: 20px;
    height: 20px;
    color: var(--checkout-primary);
    flex-shrink: 0;
}

.section-icon-svg-light {
    color: var(--checkout-primary);
}

.item-count-badge {
    margin-left: auto;
    background: var(--checkout-primary);
    color: #fff;
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 0.7em;
    font-weight: 600;
}

/* --- Cart Items --- */
.cart-items-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 55vh;
    overflow-y: auto;
    padding: 4px;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
}

.cart-items-list::-webkit-scrollbar {
    width: 3px;
}

.cart-items-list::-webkit-scrollbar-track {
    background: var(--checkout-gray-200);
    border-radius: 2px;
}

.cart-items-list::-webkit-scrollbar-thumb {
    background: var(--checkout-gray-300);
    border-radius: 2px;
}

/* Cart Item - Mobile-Optimized */
.cart-item {
    display: grid;
    grid-template-columns: 68px 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--checkout-gray-100);
    border-radius: var(--checkout-radius-lg);
    transition: all 0.25s ease;
    position: relative;
}

.cart-item:hover {
    background: #f0f0f5;
}

.cart-item-image {
    width: 68px;
    height: 68px;
    border-radius: var(--checkout-radius-sm);
    overflow: hidden;
    background: #fff;
    flex-shrink: 0;
    box-shadow: 0 1px 6px rgba(0,0,0,0.06);
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-info {
    min-width: 0;
}

.cart-item-name {
    font-size: 0.85em;
    font-weight: 600;
    color: var(--checkout-dark);
    margin: 0 0 3px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.cart-item-sku {
    font-size: 0.65em;
    color: var(--checkout-gray-400);
    display: block;
    margin-bottom: 6px;
}

.cart-item-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

/* --- Quantity Control - Touch Optimized --- */
.quantity-control {
    display: inline-flex;
    align-items: center;
    background: #fff;
    border-radius: var(--checkout-radius-sm);
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    border: 1px solid var(--checkout-gray-200);
}

.qty-btn {
    width: var(--touch-target);
    height: var(--touch-target);
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--checkout-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

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

.qty-input {
    width: 36px;
    height: var(--touch-target);
    text-align: center;
    border: none;
    border-left: 1px solid var(--checkout-gray-200);
    border-right: 1px solid var(--checkout-gray-200);
    font-size: 0.85em;
    font-weight: 600;
    color: var(--checkout-dark);
    -moz-appearance: textfield;
    -webkit-appearance: none;
    padding: 0;
}

.qty-input::-webkit-inner-spin-button,
.qty-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* --- Price --- */
.cart-item-price {
    text-align: right;
}

.price-label {
    display: block;
    font-size: 0.6em;
    color: var(--checkout-gray-400);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 2px;
}

.price-value {
    font-size: 0.95em;
    font-weight: 700;
    color: var(--checkout-dark);
    white-space: nowrap;
}

/* --- Remove Button - Touch Optimized --- */
.remove-item-btn {
    width: var(--touch-target);
    height: var(--touch-target);
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--checkout-gray-300);
    border-radius: var(--checkout-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.remove-item-btn:active {
    background: #fee2e2;
    color: var(--checkout-danger);
}

/* --- Continue Shopping Link --- */
.continue-shopping-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    color: var(--checkout-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85em;
    padding: 8px 0;
    min-height: var(--touch-target);
    transition: all 0.2s ease;
}

.continue-shopping-link:active {
    color: var(--checkout-primary-dark);
}

/* --- Checkout Form --- */
.checkout-form-section {
    position: sticky;
    top: 16px;
    display: flex;
    flex-direction: column;
}

/* Stretch the Shipping Details card to fill the column height */
.checkout-form-section > .section-card {
    flex: 1;
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.form-row {
    margin-bottom: 14px;
}

.form-row label {
    display: block;
    font-size: 0.8em;
    font-weight: 600;
    color: var(--checkout-gray-600);
    margin-bottom: 6px;
}

.form-row label .required {
    color: var(--checkout-danger);
}

.form-row label .optional {
    color: var(--checkout-gray-300);
    font-weight: 400;
}

.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row input[type="number"],
.form-row select,
.form-row textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--checkout-gray-200);
    border-radius: var(--checkout-radius-sm);
    font-size: 0.9em;
    transition: all 0.25s ease;
    background: var(--checkout-gray-100);
    color: var(--checkout-dark);
    min-height: var(--touch-target);
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    border-color: var(--checkout-primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
    outline: none;
}

.form-row input::placeholder,
.form-row textarea::placeholder {
    color: var(--checkout-gray-300);
}

/* Select (country/region) custom dropdown arrow */
.form-row select {
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2386868b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    background-color: var(--checkout-gray-100);
    padding-right: 40px;
    cursor: pointer;
}

.form-row select:focus {
    background-color: #fff;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}

.form-row-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 14px;
}

.form-row-group .form-row {
    margin-bottom: 0;
}

.checkout-notes {
    margin-top: 6px;
}

.checkout-notes textarea {
    resize: vertical;
    min-height: 60px;
}

/* --- Order received / Thank-you page (native WC content) --- */
.order-received-card .woocommerce-notice,
.order-received-card .woocommerce-thankyou-order-received {
    font-size: 1.2em;
    font-weight: 700;
    color: var(--checkout-success);
    margin-bottom: 18px;
}
.order-received-card .woocommerce-order-overview {
    list-style: none;
    margin: 0 0 24px;
    padding: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    background: var(--checkout-gray-100);
    border-radius: var(--checkout-radius-md);
}
.order-received-card .woocommerce-order-overview li {
    font-size: 0.7em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--checkout-gray-500);
    border: 0 !important;
    padding: 0 !important;
}
.order-received-card .woocommerce-order-overview li strong {
    display: block;
    font-size: 1.5em;
    text-transform: none;
    letter-spacing: 0;
    color: var(--checkout-dark);
    margin-top: 4px;
}
.order-received-card h2 {
    font-size: 1.05em;
    font-weight: 700;
    color: var(--checkout-dark);
    margin: 24px 0 10px;
}
.order-received-card table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85em;
}
.order-received-card table th,
.order-received-card table td {
    padding: 9px 10px;
    text-align: left;
    border-bottom: 1px solid var(--checkout-gray-200);
}
.order-received-card address {
    font-style: normal;
    line-height: 1.6;
    color: var(--checkout-gray-600);
}

/* Selected options (color/model etc.) shown under cart/order items */
.cart-item-attrs,
.order-item-attrs {
    display: block;
    font-size: 0.72em;
    color: var(--checkout-gray-500);
    margin-top: 2px;
    line-height: 1.5;
}
.cart-item-attrs dl,
.order-item-attrs dl {
    margin: 0;
    padding: 0;
}
.cart-item-attrs dt,
.cart-item-attrs dd,
.order-item-attrs dt,
.order-item-attrs dd {
    display: inline;
    margin: 0;
    padding: 0;
    font-weight: 500;
}
.cart-item-attrs dt::after,
.order-item-attrs dt::after { content: ": "; }
.cart-item-attrs dt,
.order-item-attrs dt { text-transform: capitalize; color: var(--checkout-gray-600); }
.cart-item-attrs dd,
.order-item-attrs dd { color: var(--checkout-dark); }
.cart-item-attrs dl + dl::before,
.order-item-attrs dl + dl::before { content: " · "; color: var(--checkout-gray-300); }

/* Save shipping address checkbox */
.save-address-row {
    margin-top: 14px;
    padding: 12px 14px;
    background: var(--checkout-gray-100);
    border: 1px solid var(--checkout-gray-200);
    border-radius: var(--checkout-radius-md);
}

.save-address-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 0.87em;
    font-weight: 500;
    color: var(--checkout-dark);
    margin: 0;
}

.save-address-checkbox {
    width: 17px;
    height: 17px;
    accent-color: var(--checkout-primary);
    flex-shrink: 0;
    cursor: pointer;
}

/* --- Order Summary Card (light, matches other cards) --- */
.order-review-card {
    background: var(--checkout-card);
    color: var(--checkout-dark);
    border-radius: var(--checkout-radius-xl);
    overflow: hidden;
}

.order-review-card .section-title {
    color: var(--checkout-dark);
    border-bottom-color: var(--checkout-gray-200);
    padding-bottom: 12px;
}

/* --- Order Items --- */
.order-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
    max-height: 180px;
    overflow-y: auto;
    padding: 4px;
    -webkit-overflow-scrolling: touch;
}

.order-items::-webkit-scrollbar {
    width: 2px;
}

.order-items::-webkit-scrollbar-thumb {
    background: rgba(0,0,0,0.15);
    border-radius: 2px;
}

.order-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--checkout-gray-200);
}

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

.order-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
    flex: 1;
    padding-right: 8px;
}

.order-item-name {
    font-size: 0.8em;
    color: var(--checkout-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.order-item-qty {
    font-size: 0.65em;
    color: var(--checkout-gray-500);
}

.order-item-price {
    font-size: 0.85em;
    font-weight: 600;
    color: var(--checkout-dark);
    flex-shrink: 0;
}

/* --- Order Totals --- */
.order-totals {
    border-top: 1px solid var(--checkout-gray-200);
    padding-top: 14px;
    margin-bottom: 18px;
}

.order-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 7px 0;
    font-size: 0.82em;
}

.order-total-row span:first-child {
    color: var(--checkout-gray-600);
}

.order-total-row span:last-child {
    color: var(--checkout-dark);
    font-weight: 500;
}

.order-total-row.discount span:last-child {
    color: var(--checkout-success);
}

.order-total-grand {
    border-top: 1px solid var(--checkout-gray-300);
    padding-top: 12px;
    margin-top: 6px;
}

.order-total-grand span {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--checkout-dark);
}

.total-amount {
    color: var(--checkout-success) !important;
    font-size: 1.25em !important;
}

/* --- Coupon Section --- */
.coupon-section {
    margin-bottom: 18px;
    padding: 12px;
    background: var(--checkout-gray-100);
    border: 1px solid var(--checkout-gray-200);
    border-radius: var(--checkout-radius-md);
}

/* Input row */
.coupon-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--checkout-card);
    border: 1px solid var(--checkout-gray-200);
    border-radius: 10px;
    padding: 4px 4px 4px 12px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.coupon-input-row:focus-within {
    border-color: var(--checkout-primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.18);
}

.coupon-input-icon {
    display: inline-flex;
    color: var(--checkout-gray-400);
    flex-shrink: 0;
}

.coupon-code-input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    outline: none;
    color: var(--checkout-dark);
    padding: 9px 0;
    font-size: 0.85em;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.coupon-code-input::placeholder {
    color: var(--checkout-gray-400);
    letter-spacing: normal;
    text-transform: none;
}

.coupon-apply-btn {
    background: var(--checkout-primary);
    border: none;
    color: #fff;
    padding: 9px 18px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.82em;
    transition: background 0.2s ease, transform 0.1s ease;
    white-space: nowrap;
    min-height: 38px;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.coupon-apply-btn:hover { background: var(--checkout-primary-dark); }
.coupon-apply-btn:active { transform: scale(0.97); }
.coupon-apply-btn:disabled { opacity: 0.55; cursor: progress; }

/* Feedback line */
.coupon-feedback {
    font-size: 0.75em;
    margin-top: 8px;
    min-height: 0;
    line-height: 1.4;
}
.coupon-feedback:empty { margin-top: 0; }
.coupon-feedback.success { color: var(--checkout-success); }
.coupon-feedback.error { color: var(--checkout-danger); }

/* Applied coupon chips */
.applied-coupons-list {
    list-style: none;
    margin: 0 0 10px 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.applied-coupon-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(16,185,129,0.12);
    border: 1px solid rgba(16,185,129,0.45);
    color: #047857;
    padding: 5px 6px 5px 10px;
    border-radius: 999px;
    font-size: 0.75em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.applied-coupon-chip svg { flex-shrink: 0; }

.remove-coupon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border: none;
    border-radius: 50%;
    background: rgba(16,185,129,0.2);
    color: #047857;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.remove-coupon-btn:hover { background: rgba(239,68,68,0.45); color: #fff; }

/* --- Payment Methods (native WooCommerce markup) --- */
.payment-methods h3 {
    font-size: 0.82em;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--checkout-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.woocommerce-checkout-payment .wc_payment_methods,
.wc_payment_methods {
    list-style: none;
    padding: 0;
    margin: 0 0 14px 0;
}

.wc_payment_methods li {
    padding: 12px 14px;
    background: var(--checkout-gray-100);
    border: 1px solid var(--checkout-gray-200);
    border-radius: var(--checkout-radius-md);
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: var(--touch-target);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.wc_payment_methods li:hover { background: var(--checkout-gray-200); }

/* Selected method highlight */
.wc_payment_methods li:has(input[type="radio"]:checked) {
    background: rgba(99,102,241,0.1);
    border-color: rgba(99,102,241,0.55);
}

.wc_payment_methods li input[type="radio"] {
    accent-color: var(--checkout-primary);
    margin-right: 10px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Gateway label (text + logo) */
.wc_payment_methods li label {
    color: var(--checkout-dark);
    font-size: 0.86em;
    font-weight: 600;
    cursor: pointer;
    margin: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.wc_payment_methods li label img {
    max-height: 24px;
    width: auto;
    margin-left: auto;
}

/* Gateway description / PayPal smart-button container */
.wc_payment_methods li .payment_box {
    flex-basis: 100%;
    margin: 10px 0 2px;
    padding: 12px;
    background: var(--checkout-card);
    color: var(--checkout-dark);
    border: 1px solid var(--checkout-gray-200);
    border-radius: var(--checkout-radius-sm);
    font-size: 0.82em;
    line-height: 1.5;
    position: relative;
}

.wc_payment_methods li .payment_box p:last-child { margin-bottom: 0; }
.wc_payment_methods li .payment_box::before { display: none; } /* remove default arrow */

/* PayPal / APM smart button wrappers get room to render */
.wc_payment_methods li .payment_box .ppc-button-wrapper,
.wc_payment_methods li .payment_box [id*="ppc-button"],
.wc_payment_methods li .payment_box .wc-block-components-payment-method-content {
    margin-top: 6px;
}

/* --- Place Order Button (native #place_order + legacy custom button) --- */
.payment-methods .place-order,
.woocommerce-checkout-payment .place-order {
    margin-top: 6px;
}

#payment #place_order,
.checkout-submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--checkout-primary) 0%, var(--checkout-primary-dark) 100%);
    color: #fff;
    border: none;
    border-radius: var(--checkout-radius-md);
    font-size: 0.95em;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.3px;
    margin-top: 14px;
    min-height: var(--touch-target-lg);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

#payment #place_order:hover {
    box-shadow: 0 6px 18px rgba(99,102,241,0.4);
}

#payment #place_order:active,
.checkout-submit-btn:active {
    background: linear-gradient(135deg, var(--checkout-primary-dark) 0%, #4338ca 100%);
    transform: scale(0.98);
}

#payment #place_order:disabled,
.checkout-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* WooCommerce terms / privacy text */
.woocommerce-checkout-payment .woocommerce-terms-and-conditions-wrapper,
.woocommerce-checkout-payment .woocommerce-privacy-policy-text {
    font-size: 0.72em;
    color: var(--checkout-gray-500);
    margin-top: 8px;
}
.woocommerce-checkout-payment .woocommerce-privacy-policy-text a { color: var(--checkout-primary); }

/* ============================================
   Mobile Sticky Bottom Bar
   ============================================ */
.mobile-sticky-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--checkout-dark);
    padding: 12px 16px;
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    z-index: 1000;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.mobile-sticky-info {
    display: flex;
    flex-direction: column;
}

.mobile-sticky-label {
    font-size: 0.7em;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mobile-sticky-amount {
    font-size: 1.2em;
    font-weight: 700;
    color: var(--checkout-success);
}

.mobile-sticky-btn {
    flex: 1;
    max-width: 200px;
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--checkout-primary) 0%, var(--checkout-primary-dark) 100%);
    color: #fff;
    border: none;
    border-radius: var(--checkout-radius-md);
    font-size: 0.9em;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: var(--touch-target-lg);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.mobile-sticky-btn:active {
    transform: scale(0.97);
}

/* ============================================
   Empty Cart
   ============================================ */
.empty-cart-message {
    text-align: center;
    padding: 60px 20px;
}

.empty-cart-icon {
    color: var(--checkout-gray-300);
    margin-bottom: 20px;
}

.empty-cart-message h2 {
    font-size: 1.4em;
    color: var(--checkout-dark);
    margin: 0 0 6px;
}

.empty-cart-message p {
    font-size: 0.95em;
    color: var(--checkout-gray-500);
    margin: 0 0 24px;
}

.btn-shop-now {
    display: inline-flex;
    align-items: center;
    padding: 13px 32px;
    background: var(--checkout-primary);
    color: #fff;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95em;
    min-height: var(--touch-target-lg);
    transition: all 0.3s ease;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-shop-now:active {
    background: var(--checkout-primary-dark);
    transform: scale(0.97);
}

/* ============================================
   Toast Notification
   ============================================ */
.checkout-toast {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%) translateY(-120%);
    padding: 12px 20px;
    border-radius: var(--checkout-radius-md);
    color: #fff;
    font-weight: 600;
    font-size: 0.85em;
    z-index: 9999;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    text-align: center;
    max-width: calc(100vw - 32px);
}

.checkout-toast.show {
    transform: translateX(-50%) translateY(0);
}

.checkout-toast.success {
    background: var(--checkout-success);
}

.checkout-toast.error {
    background: var(--checkout-danger);
}

/* ============================================
   Loading States
   ============================================ */
.cart-item.updating {
    opacity: 0.5;
    pointer-events: none;
}

.cart-item.removing {
    opacity: 0;
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: -10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

/* ============================================
   RESPONSIVE - Tablet
   ============================================ */
@media (max-width: 900px) {
    .checkout-layout {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .checkout-form-section {
        position: static;
    }

    .checkout-header {
        padding: 16px 0 20px;
    }

    .checkout-title {
        font-size: 1.6em;
    }
    
    .checkout-steps {
        padding: 8px 14px;
    }
    
    .step-line {
        width: 24px;
        margin: 0 4px;
    }

    .mobile-sticky-bar {
        display: flex;
    }
    
    /* Hide desktop place order button on mobile */
    .order-review-card .place-order {
        display: none;
    }
    
    /* Add bottom padding to account for sticky bar */
    .checkout-layout {
        padding-bottom: calc(var(--touch-target-lg) * 2 + 40px);
    }
    
    .unified-checkout-page {
        padding-bottom: 0;
    }
}

/* ============================================
   RESPONSIVE - Mobile
   ============================================ */
@media (max-width: 768px) {
    .checkout-container {
        padding: 0 12px;
    }

    .checkout-title {
        font-size: 1.45em;
    }

    .checkout-subtitle {
        font-size: 0.82em;
    }

    .checkout-steps {
        padding: 8px 12px;
    }

    .step-number {
        width: 26px;
        height: 26px;
        font-size: 0.7em;
    }

    .step-label {
        font-size: 0.55em;
    }

    .step-line {
        width: 20px;
    }

    .section-card {
        padding: 16px;
        border-radius: var(--checkout-radius-lg);
    }

    .section-title {
        font-size: 1em;
        margin-bottom: 14px;
    }

    .item-count-badge {
        font-size: 0.65em;
        padding: 3px 8px;
    }

    /* Cart Item Mobile */
    .cart-item {
        padding: 10px;
        gap: 10px;
    }

    .cart-item-image {
        width: 58px;
        height: 58px;
        border-radius: 8px;
    }

    .cart-item-name {
        font-size: 0.78em;
    }

    .cart-item-sku {
        font-size: 0.6em;
    }

    .price-value {
        font-size: 0.85em;
    }

    .price-label {
        font-size: 0.55em;
    }

    /* Form Mobile */
    .form-row-group {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-row-group .form-row {
        margin-bottom: 12px;
    }

    .form-row {
        margin-bottom: 12px;
    }

    .form-row label {
        margin-bottom: 5px;
    }

    .form-row input,
    .form-row select,
    .form-row textarea {
        font-size: 16px !important; /* Prevent iOS zoom on focus */
        box-sizing: border-box;
        max-width: 100%;
    }

    /* Prevent any horizontal overflow / right-edge cut-off on mobile.
       Root cause: grid/flex children default to min-width:auto and refuse to
       shrink below their content's intrinsic width, pushing the whole layout
       wider than the viewport. min-width:0 lets them shrink to fit. */
    html, body {
        overflow-x: hidden;
        max-width: 100%;
    }
    .unified-checkout-page,
    .checkout-container,
    .checkout-layout {
        overflow-x: hidden;
        max-width: 100%;
    }
    .checkout-layout,
    .checkout-form-section,
    .checkout-cart-section,
    .checkout-form-section > .section-card,
    .section-card,
    .order-review-card,
    .checkout-form,
    .order-review,
    .order-items,
    .order-item,
    .order-item-info,
    .form-row,
    .form-row-group,
    .form-row-wide {
        min-width: 0;
        max-width: 100%;
        box-sizing: border-box;
    }
    .checkout-container { padding: 0 14px; }
    .unified-checkout-page { padding-top: 12px; }

    /* Ensure the last content (PayPal button etc.) clears the fixed bottom bar */
    .checkout-layout {
        padding-bottom: calc(var(--touch-target-lg) * 2 + 56px) !important;
    }

    /* Order Review */
    .order-review-card {
        border-radius: var(--checkout-radius-lg);
    }

    .order-item-name {
        font-size: 0.75em;
    }

    .total-amount {
        font-size: 1.15em !important;
    }
}

/* ============================================
   RESPONSIVE - Small Mobile
   ============================================ */
@media (max-width: 480px) {
    .checkout-container {
        padding: 0 10px;
    }

    .checkout-title {
        font-size: 1.3em;
    }

    .section-card {
        padding: 14px 12px;
    }

    .cart-item {
        padding: 8px;
        gap: 8px;
    }

    .cart-item-image {
        width: 52px;
        height: 52px;
    }

    .qty-btn {
        width: 38px;
        height: 38px;
    }

    .qty-input {
        width: 30px;
        height: 38px;
    }

    .remove-item-btn {
        width: 38px;
        height: 38px;
    }

    .cart-item-name {
        font-size: 0.72em;
    }

    .price-value {
        font-size: 0.8em;
    }
}

/* ============================================
   Accessibility & Focus States
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
.qty-btn:focus-visible,
.remove-item-btn:focus-visible,
.checkout-submit-btn:focus-visible,
.mobile-sticky-btn:focus-visible {
    outline: 2px solid var(--checkout-primary);
    outline-offset: 2px;
}