/* ═══════════════════════════════════════════════════════════════
   client/checkout.css — 客戶結帳 Modal 樣式
   從 index.html 內嵌 <style> 抽出（原 2194-2704 行）
   包含：.checkout-* 全系列規則 + Phase 3 否決 banner + @media 覆寫
   ═══════════════════════════════════════════════════════════════ */

/* ═══════════════ 結帳頁 Modal ═══════════════ */
.checkout-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(6px);
    overflow-y: auto;
    padding: 16px;
}
.checkout-modal.active { display: block; }
.checkout-modal-content {
    max-width: 480px;
    margin: 20px auto;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    animation: modalSlideIn 0.35s cubic-bezier(.34, 1.2, .64, 1);
    position: relative;
}
.checkout-close {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 2;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    border: none;
    color: #64748b;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}
.checkout-close:hover {
    background: #fff;
    color: #0f172a;
}

.checkout-header {
    padding: 14px 58px 14px 20px;
    background: #0f172a;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: relative;
}
.checkout-header-title {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}
.checkout-order-ref {
    font-size: 11px;
    color: #64748b;
    font-family: 'SF Mono', 'Consolas', monospace;
    letter-spacing: 0.02em;
    text-align: left;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.checkout-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    backdrop-filter: blur(8px);
    flex-shrink: 0;
}
.checkout-header h2 {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
}
.checkout-countdown {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 999px;
    font-size: 12px;
    color: #fff;
    flex-shrink: 0;
}
.checkout-countdown strong {
    font-size: 15px;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}
.checkout-countdown.warn {
    background: rgba(239, 68, 68, 0.6);
    border-color: rgba(239, 68, 68, 0.8);
    animation: checkoutPulse 1s ease-in-out infinite;
}
@keyframes checkoutPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.checkout-amount-box {
    margin: 20px 20px 0;
    padding: 18px;
    background: #f8fafc;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #e2e8f0;
}

/* Phase 3：否決原因 banner */
.checkout-rejection-banner {
    margin: 16px 20px 0;
    padding: 14px 16px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-left: 4px solid #dc2626;
    border-radius: 8px;
}
.checkout-rejection-title {
    font-size: 14px;
    font-weight: 700;
    color: #991b1b;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.checkout-rejection-reason {
    font-size: 14px;
    color: #7f1d1d;
    background: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px dashed #fecaca;
    white-space: pre-line;
    word-break: break-word;
    margin-bottom: 6px;
}
.checkout-rejection-hint {
    font-size: 12px;
    color: #991b1b;
}
.checkout-amount-label {
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.checkout-amount-value {
    font-size: 32px;
    font-weight: 800;
    color: #4338ca;
    margin: 4px 0 0;
    font-variant-numeric: tabular-nums;
}

.checkout-section {
    padding: 18px 20px 0;
}
.checkout-section-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    color: #475569;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 2px solid #f1f5f9;
}
.checkout-section-title i {
    color: #475569;
    font-size: 13px;
}
.checkout-section-hint {
    margin-left: auto;
    font-weight: 500;
    color: #94a3b8;
    font-size: 10px;
    text-transform: none;
    letter-spacing: 0;
}

.checkout-bank-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 10px 12px;
}
.checkout-bank-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 16px;
}
.checkout-bank-row + .checkout-bank-row,
.checkout-bank-row + .checkout-field,
.checkout-field + .checkout-bank-row {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed #e2e8f0;
}
.checkout-cell {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.checkout-cell-label {
    font-size: 11px;
    font-weight: 600;
    color: #64748b;
}
.checkout-cell-value {
    font-size: 14px;
    font-weight: 600;
    color: #0f172a;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.checkout-field {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 4px;
}
.checkout-field + .checkout-field {
    border-top: 1px dashed #e2e8f0;
}
.checkout-field-label {
    flex-shrink: 0;
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    width: 48px;
}
.checkout-field-copy {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid transparent;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: #0f172a;
    text-align: left;
    transition: all 0.15s ease;
}
.checkout-field-copy:hover {
    background: #fff;
    border-color: #cbd5e1;
    color: #4338ca;
}
.checkout-field-copy:active {
    transform: scale(0.98);
}
.checkout-field-copy i {
    font-size: 12px;
    color: #94a3b8;
    transition: color 0.15s ease;
}
.checkout-field-copy:hover i {
    color: #4338ca;
}
.checkout-field-copy.copied {
    background: #dcfce7 !important;
    border-color: #86efac !important;
    color: #16a34a !important;
}
.checkout-field-copy.copied i {
    color: #16a34a !important;
}
.checkout-field-mono {
    font-family: 'SF Mono', 'Consolas', monospace;
    letter-spacing: 0.05em;
}
/* 金融帳號整排 — 數字放大、加粗 */
.checkout-field-copy.checkout-field-mono {
    font-size: 18px;
    font-weight: 700;
    padding: 10px 12px;
}

/* 匯款憑證整合列：[末 5 碼 input] 或 [上傳按鈕] 同一行 */
.checkout-proof-combo {
    display: flex;
    align-items: stretch;
    gap: 8px;
}
.checkout-proof-last5 {
    flex: 1 1 0;
    min-width: 0;
    padding: 10px 12px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    letter-spacing: 0.2em;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #f8fafc;
    color: #0f172a;
    box-sizing: border-box;
    font-family: 'SF Mono', 'Consolas', monospace;
    transition: all 0.15s ease;
}
.checkout-proof-last5:focus {
    outline: none;
    border-color: #4338ca;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(67, 56, 202, 0.12);
}
.checkout-proof-divider {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    font-weight: 600;
    color: #94a3b8;
    flex-shrink: 0;
}
.checkout-proof-upload {
    flex: 1 1 0;
    min-width: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 12px;
    border: 1px dashed #cbd5e1;
    border-radius: 8px;
    background: #f8fafc;
    color: #475569;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}
.checkout-proof-upload:hover {
    border-color: #4338ca;
    color: #4338ca;
    background: #eef2ff;
}

/* 上傳後的縮圖預覽（取代上方的選擇按鈕） */
.checkout-upload-preview {
    border: 1px solid #86efac;
    border-radius: 10px;
    overflow: hidden;
    background: #f0fdf4;
}
.checkout-upload-preview img {
    display: block;
    width: 100%;
    max-height: 260px;
    object-fit: contain;
    background: #0f172a;
    cursor: zoom-in;
}
.checkout-upload-preview-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 12px;
    background: #f0fdf4;
    border-top: 1px solid #86efac;
}
.checkout-upload-preview-name {
    flex: 1;
    font-size: 12px;
    color: #15803d;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}
.checkout-upload-preview-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}
.checkout-upload-preview-btn {
    width: 30px;
    height: 30px;
    padding: 0;
    border: 1px solid #bbf7d0;
    border-radius: 6px;
    background: #fff;
    color: #16a34a;
    cursor: pointer;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
}
.checkout-upload-preview-btn:hover {
    background: #16a34a;
    color: #fff;
    border-color: #16a34a;
}
.checkout-upload-preview-btn-danger {
    color: #dc2626;
    border-color: #fecaca;
}
.checkout-upload-preview-btn-danger:hover {
    background: #dc2626;
    color: #fff;
    border-color: #dc2626;
}

.checkout-actions {
    display: flex;
    gap: 10px;
    padding: 20px;
    margin-top: 4px;
}
.checkout-btn {
    padding: 13px 18px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.15s ease;
}
.checkout-btn-later {
    flex: 1;
    background: #fff;
    color: #475569;
    border: 1px solid #e2e8f0;
}
.checkout-btn-later:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
}
.checkout-btn-submit {
    flex: 1;
    background: #0f172a;
    color: #fff;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.25);
}
.checkout-btn-submit:hover:not(:disabled) {
    background: #1e293b;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.35);
}
.checkout-btn-submit:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
}

.checkout-footer-hint {
    padding: 12px 20px 20px;
    font-size: 11px;
    color: #94a3b8;
    text-align: center;
    line-height: 1.5;
}
.checkout-footer-hint i {
    margin-right: 4px;
}

@media (max-width: 480px) {
    .checkout-modal-content {
        margin: 8px auto;
        border-radius: 12px;
    }
    .checkout-amount-value { font-size: 28px; }
    .checkout-header { padding: 12px 16px; }
    .checkout-header h2 { font-size: 16px; }
    .checkout-actions { padding: 16px; }
}