/* 前台通用「等待中」等待 Modal（非訂單、非 AI 的通用等待遮罩，供表單送出/加入會員/加入購物車等場景重用）
   三件組：本檔＋Pages/Shared/_FSWaitingModal.cshtml＋wwwroot/js/FrontSideWhole/FSWaitingModal.js
   視覺比照既有等待遮罩（PayProcessingModal／AIGeneratingModal），統一風格；含 5 分鐘逃生口（逾時提示＋重整鈕，非訂單冪等機制）。 */
.fs-waiting { display: none; position: fixed; inset: 0; z-index: 100000; }
.fs-waiting--show { display: block; }
.fs-waiting__overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.7); }
.fs-waiting__card {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
    background: #fff; border-radius: 16px; padding: 36px 40px; text-align: center;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25); max-width: 90vw; width: 360px;
}
.fs-waiting__spinner {
    width: 60px; height: 60px; margin: 0 auto 24px;
    border: 4px solid #e5e7eb; border-top-color: #4CAF50; border-radius: 50%;
    animation: fsWaitingSpin 0.8s linear infinite;
}
@keyframes fsWaitingSpin { to { transform: rotate(360deg); } }
.fs-waiting__title { font-size: 20px; font-weight: 600; color: #1f2937; margin: 0 0 12px; line-height: 1.4; }
.fs-waiting__desc { font-size: 14px; color: #6b7280; margin: 0 0 20px; line-height: 1.5; }
.fs-waiting__warning {
    display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px;
    background: #fff3cd; border: 1px solid #ffe69c; border-radius: 8px; color: #92400e; font-size: 13px;
}

/* 5 分鐘逃生口：show 後 300 秒仍未 hide 才由 JS 加 --show 顯示 */
.fs-waiting__timeout { display: none; margin-top: 16px; }
.fs-waiting__timeout--show { display: block; }
.fs-waiting__timeout-text { font-size: 13px; color: #6b7280; margin: 0 0 10px; line-height: 1.6; }
.fs-waiting__reload-btn {
    background: #2563eb; color: #fff; border: none; padding: 8px 20px; border-radius: 8px;
    font-size: 14px; font-weight: 500; cursor: pointer;
}
.fs-waiting__reload-btn:hover { background: #1d4ed8; }