/* ============================
   Product Detail Page
   ============================ */

.pd-page {
    margin-top: var(--header-height);
    padding: 20px 0;
    min-height: 100vh;
}

.pd-layout {
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

/* Left Sidebar */
.pd-sidebar {
    width: 33.333%;
    flex-shrink: 0;
}

.pd-sidebar-inner {
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

.pd-game-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 12px;
    box-shadow: var(--shadow-md);
}

.pd-game-img {
    width: 100px;
    max-height: 128px;
    object-fit: cover;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.pd-game-img-placeholder {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    font-size: 2.5rem;
    color: var(--color-text-muted);
}

.pd-game-info {
    flex: 1;
    min-width: 0;
}

.pd-game-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    margin: 0 0 2px;
    letter-spacing: var(--letter-spacing-wide);
}

.pd-game-delivery {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
    margin: 0 0 8px;
}

.pd-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.pd-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: var(--font-weight-semibold);
    border: 1px solid;
}

.pd-badge-fast {
    color: var(--color-primary);
    border-color: var(--color-border);
}

.pd-badge-safe {
    color: var(--color-success);
    border-color: var(--color-border);
}

.pd-notice {
    font-size: var(--font-size-xs);
    color: var(--color-text-primary);
    margin: 0;
}

.pd-notice-star {
    color: var(--color-primary);
}

/* Right Main */
.pd-main {
    flex: 1;
    min-width: 0;
    padding: 0 12px 8px;
}

/* Steps */
.pd-step {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 8px;
    box-shadow: var(--shadow-md);
}

.pd-step-header {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.pd-step-num {
    width: 48px;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: #fff;
    flex-shrink: 0;
    border-top-left-radius: var(--radius-lg);
}

.pd-step-header h3 {
    font-family: var(--font-heading);
    font-size: 15px;
    color: var(--color-text-primary);
    padding: 12px 16px;
    margin: 0;
    letter-spacing: var(--letter-spacing-wide);
}

.pd-guide-btn {
    margin-left: auto;
    margin-right: 12px;
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-body);
    font-weight: var(--font-weight-semibold);
    transition: color var(--transition-fast);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.pd-guide-btn:hover {
    background: rgba(37,99,235,0.08);
}

.pd-step-body {
    padding: 16px 12px;
}

/* UID Input */
.pd-field label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.pd-uid-row {
    display: flex;
    gap: 8px;
}

.pd-input {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    outline: none;
    transition: border var(--transition-fast);
}

.pd-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}

.pd-btn-verify {
    height: 40px;
    padding: 0 16px;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-md);
    color: #fff;
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--transition-fast);
}

.pd-btn-verify:hover {
    background: var(--color-primary-dark);
}

.pd-btn-verify:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.pd-verify-result {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
    padding: 10px 12px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.pd-verify-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.pd-verify-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-success);
    margin-left: 4px;
}

.pd-verify-check {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-success);
}

.pd-verify-error {
    margin-top: 8px;
    font-size: var(--font-size-xs);
    color: var(--color-error);
    font-weight: var(--font-weight-medium);
}

/* Product Grid */
.pd-step-products {
    background: transparent;
    border: none;
    box-shadow: none;
}

.pd-step-products .pd-step-header {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 0;
}

.pd-step-products .pd-step-body {
    background: transparent;
    padding: 14px 4px 8px;
}

.pd-product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

@media (min-width: 640px) {
    .pd-product-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
    .pd-product-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Product Card */
.pd-product-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--color-bg-card);
    border: 1.5px solid var(--color-border);
    border-radius: 14px;
    padding: 12px 10px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s, background 0.2s;
    text-align: center;
    width: 100%;
    font-family: inherit;
    color: inherit;
}

.pd-product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), transparent 60%);
    pointer-events: none;
}

.pd-product-card:hover {
    transform: translateY(-3px);
    border-color: rgba(37, 99, 235, 0.45);
    box-shadow: 0 8px 24px rgba(0,0,0,0.45), 0 0 14px rgba(37, 99, 235, 0.18);
}

.pd-product-card.pd-selected {
    background: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.3), 0 8px 24px rgba(0,0,0,0.45);
}

.pd-product-card.pd-selected::before {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), transparent 55%);
}

/* Check Tick */
.pd-pc-tick {
    position: absolute;
    top: 7px;
    left: 7px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 8px rgba(37, 99, 235, 0.55);
    z-index: 5;
}

.pd-pc-tick svg {
    width: 10px;
    height: 10px;
}

.pd-product-card.pd-selected .pd-pc-tick {
    display: flex;
}

/* Product Image */
.pd-pc-img {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.5));
    transition: transform 0.25s;
}

.pd-product-card:hover .pd-pc-img,
.pd-product-card.pd-selected .pd-pc-img {
    transform: scale(1.08);
}

.pd-pc-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Product Name */
.pd-pc-name {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: 1.25;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Price */
.pd-pc-price {
    margin-top: auto;
}

.pd-pc-old {
    font-size: 10px;
    color: var(--color-text-muted);
    text-decoration: line-through;
    margin-bottom: 1px;
}

.pd-pc-current {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.pd-product-card.pd-selected .pd-pc-current {
    color: var(--color-primary-light);
}

/* Discount Badge */
.pd-pc-discount {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 4;
    padding: 3px 7px;
    font-size: 10px;
    font-weight: 800;
    color: #fff;
    background: var(--color-primary);
    border-radius: 999px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.18);
}

/* Payment Grid */
.pd-payment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

@media (min-width: 640px) {
    .pd-payment-grid { grid-template-columns: repeat(3, 1fr); }
}

.pd-payment-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--color-bg-card);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pd-payment-card:hover {
    border-color: var(--color-primary);
}

.pd-payment-card.pd-selected {
    border-color: var(--color-primary);
    background: rgba(37,99,235,0.08);
}

.pd-payment-card img {
    width: 44px;
    height: 32px;
    object-fit: contain;
    border-radius: 6px;
    flex-shrink: 0;
}

.pd-payment-info {
    min-width: 0;
}

.pd-payment-info h4 {
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    margin: 0;
    color: var(--color-text-primary);
    letter-spacing: var(--letter-spacing-wide);
}

.pd-payment-info span {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Summary */
.pd-summary {
    margin-top: 8px;
    padding: 16px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.pd-summary-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.pd-summary-total {
    border-top: 1px solid var(--color-border);
    margin-top: 6px;
    padding-top: 10px;
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    letter-spacing: var(--letter-spacing-wide);
}

/* Promo */
.pd-promo {
    margin-top: 12px;
}

.pd-promo-row {
    display: flex;
    gap: 8px;
}

.pd-btn-promo {
    height: 40px;
    padding: 0 16px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.pd-btn-promo:hover {
    border-color: var(--color-primary);
}

.pd-btn-promo:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pd-promo-note {
    display: block;
    margin-top: 6px;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Buy Button */
.pd-btn-buy {
    width: 100%;
    margin-top: 16px;
    padding: 14px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: #fff;
    font-family: var(--font-body);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: opacity var(--transition-fast);
    letter-spacing: var(--letter-spacing-wide);
}

.pd-btn-buy:hover {
    opacity: 0.9;
}

.pd-safe-note {
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: 8px;
}

.pd-safe-note i {
    margin-right: 4px;
}

/* Description & Guide Sections */
.pd-description,
.pd-guide {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
}

.pd-description h3,
.pd-guide h3 {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.pd-description p,
.pd-guide p,
.pd-guide li {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.pd-guide ol {
    list-style: decimal;
    padding-left: var(--spacing-lg);
}

.pd-guide li {
    margin-bottom: var(--spacing-sm);
}

/* Responsive */
@media (max-width: 768px) {
    .pd-layout {
        flex-direction: column;
        align-items: center;
    }
    .pd-sidebar {
        width: 100%;
        max-width: 560px;
    }
    .pd-sidebar-inner {
        position: static;
    }
    .pd-game-card {
        padding: 12px;
    }
    .pd-game-img {
        width: 80px;
        max-height: 100px;
    }
    .pd-main {
        width: 100%;
        max-width: 560px;
        padding: 0;
    }
    .pd-step {
        border-radius: var(--radius-md);
    }
    .pd-step-num {
        width: 42px;
        min-height: 42px;
        font-size: var(--font-size-lg);
    }
    .pd-step-header h3 {
        font-size: 14px;
        padding: 10px 12px;
    }
    .pd-step-body {
        padding: 12px 10px;
    }
    .pd-product-grid {
        gap: 8px;
    }
    .pd-pc-img {
        width: 48px;
        height: 48px;
    }
    .pd-pc-name {
        font-size: 12px;
    }
    .pd-pc-current {
        font-size: 13px;
    }
    .pd-payment-grid {
        max-width: 400px;
        margin: 0 auto;
    }
    .pd-summary,
    .pd-promo,
    .pd-btn-buy,
    .pd-safe-note {
        max-width: 560px;
        margin-left: auto;
        margin-right: auto;
    }
    .pd-description .container,
    .pd-guide .container {
        max-width: 560px;
    }
    .pd-description,
    .pd-guide {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .pd-page .container,
    .pd-description .container,
    .pd-guide .container {
        padding: 0 16px;
    }
    .pd-page {
        padding: 12px 0;
    }
    .pd-game-card {
        padding: 10px;
    }
    .pd-game-img {
        width: 64px;
        max-height: 80px;
    }
    .pd-game-title {
        font-size: var(--font-size-base);
    }
    .pd-pc-img {
        width: 42px;
        height: 42px;
    }
    .pd-pc-name {
        font-size: 11px;
    }
    .pd-pc-current {
        font-size: 12px;
    }
    .pd-payment-card {
        padding: 8px 10px;
    }
    .pd-payment-card img {
        width: 36px;
        height: 28px;
    }
}

/* Order Summary Rows (used in confirm / success / track pages) */
.order-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}
.order-summary-row.total {
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-md);
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    color: var(--color-primary);
}
}