body {
    font-family: 'Inter', sans-serif;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: #c7c7c7;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Toast animations */
.toast-enter {
    animation: slideIn 0.3s ease forwards;
}
@keyframes slideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Unread chat badge pop */
.chat-badge-pop {
    animation: chatBadgePop 0.5s ease;
}
@keyframes chatBadgePop {
    0% { transform: scale(0.6); }
    50% { transform: scale(1.35); }
    100% { transform: scale(1); }
}
#chat-badge {
    align-items: center;
    justify-content: center;
    min-width: 18px;
    line-height: 1;
}

/* Loading spinner */
.spinner {
    border: 3px solid rgba(99, 102, 241, 0.2);
    border-top-color: #6366F1;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 0.8s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Fade in */
.fade-in {
    animation: fadeIn 0.4s ease both;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== Mobile sidebar: guaranteed behavior even if Tailwind CDN fails to load =====
   Sidebar is off-screen by default on mobile; slides in when .sidebar-open is added.
   On md+ screens it is always visible. ID selectors win over Tailwind classes. */
#sidebar,
#admin-sidebar {
    transform: translateX(-100%);
}

#sidebar.sidebar-open,
#admin-sidebar.sidebar-open {
    transform: translateX(0);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.25);
}

#sidebar-overlay,
#admin-sidebar-overlay {
    display: none;
}

#sidebar-overlay.sidebar-overlay-show,
#admin-sidebar-overlay.sidebar-overlay-show {
    display: block;
}

@media (min-width: 768px) {
    #sidebar,
    #admin-sidebar {
        transform: none;
        position: static !important;
    }
    #sidebar-overlay,
    #admin-sidebar-overlay {
        display: none !important;
    }
}

/* line-clamp-2: template dùng class này nhưng tailwind prebuilt KHÔNG có (chỉ class có sẵn
   mới chạy) -> tên sản phẩm không bị cắt, chiều cao lưới gợi ý nhảy vài trăm px giữa các
   trang (đo được section 1483 -> 1723 -> 1411px) khiến vị trí cuộn dễ lệch. */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ===== Menu thao tac cua bang nguoi dung (/admin/users) =====
   Tailwind prebuilt KHONG co bat ky hover:/focus: variant nao (0 match) nen khong
   the dua vao class hover: -> viet tay o day. Menu duoc gan `position: fixed` vao
   body boi JS de khong bi container overflow-x-auto cat mat. */
.um-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #fff;
    color: #4b5563;
    font-size: 13px;
    line-height: 1;
    cursor: pointer;
    transition: background .12s ease, border-color .12s ease, color .12s ease;
}
.um-btn:hover {
    background: #eef2ff;
    border-color: #c7d2fe;
    color: #4338ca;
}
.um-btn.um-btn-open {
    background: #eef2ff;
    border-color: #a5b4fc;
    color: #4338ca;
}

.um-menu {
    position: fixed;
    z-index: 60;
    min-width: 232px;
    max-height: 78vh;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(17, 24, 39, 0.15);
    padding: 6px 0;
}
.um-menu[hidden] {
    display: none;
}
.um-label {
    font-size: 10px;
    text-transform: uppercase;
    color: #9ca3af;
    padding: 8px 14px 4px;
    font-weight: 600;
}
.um-sep {
    height: 1px;
    background: #f3f4f6;
    margin: 6px 0;
}
.um-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    text-align: left;
    padding: 8px 14px;
    font-size: 13px;
    line-height: 1.3;
    color: #374151;
    background: transparent;
    border: 0;
    cursor: pointer;
    text-decoration: none;
    transition: background .1s ease;
}
.um-item:hover {
    background: #f3f4f6;
}
.um-item i.fa-w-4,
.um-ic {
    width: 16px;
    text-align: center;
    color: #9ca3af;
    flex-shrink: 0;
}
.um-item.um-indigo:hover { background: #eef2ff; }
.um-item.um-indigo { color: #4338ca; }
.um-item.um-indigo i.um-ic { color: #6366f1; }
.um-item.um-amber:hover { background: #fffbeb; }
.um-item.um-amber { color: #b45309; }
.um-item.um-amber i.um-ic { color: #f59e0b; }
.um-item.um-emerald:hover { background: #ecfdf5; }
.um-item.um-emerald { color: #047857; }
.um-item.um-emerald i.um-ic { color: #10b981; }
.um-item.um-purple:hover { background: #faf5ff; }
.um-item.um-purple { color: #7e22ce; }
.um-item.um-purple i.um-ic { color: #a855f7; }
.um-item.um-red:hover { background: #fef2f2; }
.um-item.um-red { color: #b91c1c; }
.um-item.um-red i.um-ic { color: #ef4444; }
.um-item.um-muted { color: #6b7280; }
.um-sub {
    display: block;
    font-size: 11px;
    color: #9ca3af;
    margin-top: 1px;
}

/* Chip dai ly canh sat ten user */
.um-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 999px;
    white-space: nowrap;
}
.um-chip-ag { background: #d1fae5; color: #047857; }
.um-chip-pending { background: #fef3c7; color: #b45309; }
.um-chip-granted { background: #e0e7ff; color: #4338ca; }

/* ---------------------------------------------------------
   Card bấm được trong báo cáo user (/admin/report/user/{id}).
   Tailwind prebuilt KHÔNG có `cursor-pointer`/`border-l-4` -> viết tay.
   Dùng cho thẻ "Link đã chia sẻ · Lượt click" (id=card-ref-orders)
   bấm để cuộn xuống khối #ref-orders. */
.ur-card {
    cursor: pointer;
    display: block;
    width: 100%;
    transition: box-shadow .12s ease, border-color .12s ease, transform .12s ease;
}
.ur-card:hover {
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    border-color: #fbbf24;
    transform: translateY(-1px);
}
.ur-card:focus-visible {
    outline: 2px solid #f59e0b;
    outline-offset: 2px;
}

/* Chip mã đơn trong bảng "Đơn tham khảo" -> phải cắt dòng khi mã dài */
.ur-ref-code {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    vertical-align: middle;
}

/* ---------------------------------------------------------
   Utility bo sung.
   static/css/tailwind.min.css la file PREBUILD (khong co JIT)
   => nhieu class tailwind bi thieu, trong do co ca class da duoc
   dung san trong template (vd banner ma gioi thieu/Sale).
   Cac class duoi day thieu THAT trong file prebuild nen bo sung
   o day. File app.css duoc load SAU tailwind.min.css nen no duoc
   uu tien khi trung ten.
   --------------------------------------------------------- */
.py-3\.5 { padding-top: 0.875rem; padding-bottom: 0.875rem; }
.p-1\.5 { padding: 0.375rem; }
.gap-x-4 { column-gap: 1rem; }
.gap-y-2 { row-gap: 0.5rem; }
.tracking-wider { letter-spacing: 0.05em; }
.w-48 { width: 12rem; }
.border-blue-200 { border-color: #bfdbfe; }
.border-green-200 { border-color: #bbf7d0; }

/* hover/focus variants bi thieu trong prebuild */
.hover\:bg-indigo-50:hover { background-color: #eef2ff; }
.hover\:bg-emerald-50:hover { background-color: #ecfdf5; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.hover\:text-indigo-800:hover { color: #3730a3; }
.hover\:text-emerald-800:hover { color: #065f46; }
.hover\:border-indigo-300:hover { border-color: #a5b4fc; }
.hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); }
.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }
.focus\:border-indigo-400:focus { border-color: #818cf8; }
.focus\:border-emerald-400:focus { border-color: #34d399; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px #fff, 0 0 0 4px currentColor; opacity: 1; }
.focus\:ring-indigo-500:focus { --tw-ring-color: #6366f1; }
.focus\:ring-emerald-500:focus { --tw-ring-color: #10b981; }

/* ---------------------------------------------------------
   Nut Zalo noi (dashboard nguoi dung) + panel fallback Zalo Web.
   Dat day vi tailwind prebuild khong co z-index/inset/animation nay.
   --------------------------------------------------------- */
#zalo-fab {
    position: fixed;
    left: 16px;
    bottom: 16px;
    width: 56px;
    height: 56px;
    border-radius: 9999px;
    background: #0068ff;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: 0 8px 20px rgba(0, 104, 255, 0.35);
    z-index: 55;
    cursor: pointer;
    border: none;
    transition: transform 0.15s ease;
}
#zalo-fab:hover { transform: scale(1.06); }
#zalo-fab:active { transform: scale(0.95); }
#zalo-fab-ring {
    position: fixed;
    left: 16px;
    bottom: 16px;
    width: 56px;
    height: 56px;
    border-radius: 9999px;
    border: 2px solid #0068ff;
    z-index: 54;
    pointer-events: none;
    animation: zaloPulse 2.4s ease-out infinite;
}
@keyframes zaloPulse {
    0%   { transform: scale(1);    opacity: 0.6; }
    70%  { transform: scale(1.5);  opacity: 0; }
    100% { transform: scale(1.5);  opacity: 0; }
}
#zalo-fab-label {
    position: fixed;
    left: 80px;
    bottom: 32px;
    background: #111827;
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 10px;
    border-radius: 8px;
    z-index: 55;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}
#zalo-fab:hover + #zalo-fab-label,
#zalo-fab:focus + #zalo-fab-label { opacity: 1; }

#zalo-panel {
    position: fixed;
    left: 16px;
    bottom: 84px;
    width: 300px;
    max-width: calc(100vw - 32px);
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
    z-index: 56;
    padding: 16px;
}
#zalo-panel-title { font-size: 14px; font-weight: 700; color: #111827; }
#zalo-panel-sub { font-size: 12px; color: #6b7280; margin-top: 2px; }
#zalo-panel-body { font-size: 12px; color: #374151; }
.zalo-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
}
.zalo-btn-app { background: #0068ff; color: #ffffff; }
.zalo-btn-app:hover { background: #0059d6; color: #ffffff; }
.zalo-btn-web { background: #ffffff; color: #0068ff; border-color: #bfdbfe; }
.zalo-btn-web:hover { background: #eff6ff; }
.zalo-btn-ghost { background: #f3f4f6; color: #4b5563; }
.zalo-btn-ghost:hover { background: #e5e7eb; }

/* Utility hover con thieu trong tailwind prebuild (sidebar + nut avatar dashboard) */
/* LUU Y: selector phai viet MOT dau \ truoc dau ':' — `.hover\\:...` (hai dau \)
   se khong match class `hover:...` ma trinh duyet co that class. */
.hover\:bg-gray-100:hover { background-color: #f3f4f6; }
.hover\:text-emerald-300:hover { color: #6ee7b7; }

/* ---- Thu vien auto-sync /admin/sync: class template dung nhung prebuild thieu ---- */
.cursor-pointer { cursor: pointer; }
.opacity-80 { opacity: 0.8; }
.pr-3 { padding-right: 0.75rem; }
.text-gray-800 { color: #1f2937; }
.hover\:bg-gray-700:hover { background-color: #374151; }

/* ---- Thanh keo ngang cho bang rong (/admin/users) ----
   Bang rong > khung: scrollbar cua `overflow-x-auto` nam o DAY DUOI bang
   (vi du 2640px, viewport 800px) => user phai cuon den het trang moi thay.
   Giu 1 thanh keo "mirror" dan ngay duoi tieu de + gan `position: sticky` de no
   luon dinh tren cung man hinh. JS 2 chieu: keo thanh nao thi cuon thanh kia. */
.um-xscroll {
    overflow-x: auto;
    overflow-y: hidden;
    height: 14px;
    position: sticky;
    top: 0;
    z-index: 5;
    background-color: #ffffff;
    border-bottom: 1px solid #e5e7eb;
}
.um-xscroll.is-off { display: none; }
.um-xscroll > .um-xscroll-track { height: 1px; }

.um-xscroll::-webkit-scrollbar,
.um-table-wrap::-webkit-scrollbar { height: 13px; }
.um-xscroll::-webkit-scrollbar-track,
.um-table-wrap::-webkit-scrollbar-track { background: #e5e7eb; border-radius: 7px; }
.um-xscroll::-webkit-scrollbar-thumb,
.um-table-wrap::-webkit-scrollbar-thumb {
    background: #9ca3af;
    border-radius: 7px;
    min-width: 48px;
}
.um-xscroll::-webkit-scrollbar-thumb:hover,
.um-table-wrap::-webkit-scrollbar-thumb:hover { background: #6b7280; }

/* ---- QR giới thiệu (/dashboard/referral) ----
   Tailwind prebuilt của dự án chỉ có ~356 class, thiếu `aspect-square`,
   `w-56/h-56`, `pointer-events-none`, `border-white/90`, `ring-2`... nên viết tay
   ở đây thay vì đặt class không tồn tại (sẽ bị bỏ qua, giao diện vỡ lặt vẹt). */
.qr-img { width: 14rem; height: 14rem; }          /* ảnh QR trong modal xem mã */
.qr-cam-box { aspect-ratio: 1 / 1; }              /* khung camera vuông */
.qr-frame-box { width: 10rem; height: 10rem; }    /* khung ngắm vuông bên trong khung camera */
.qr-cam-frame {                                    /* khung ngắm vuông, không chặn chạm */
    pointer-events: none;
    border: 2px solid rgba(255, 255, 255, 0.9);
}
.qr-file-btn { cursor: pointer; }
.qr-loading { background: rgba(0, 0, 0, 0.5); }
.qr-input-filled {                                 /* ô nhập mã sau khi quét trúng */
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

/* ---- Form liên hệ: nút "Gửi" bị khoá cho tới khi Turnstile xác nhận xong ---- */
#contact-submit:disabled { opacity: 0.6; cursor: not-allowed; }

/* ---- Utility Tailwind còn thiếu trong bản prebuilt (mục 100: nhóm "Deal giảm mạnh"
      + card 2d/2g ở /admin/at-test vốn cũng đang dùng mấy class này ⇒ im lặng vỡ layout).
      Giá trị lấy đúng chuẩn Tailwind. Thêm class ở đây thay vì đặt class lạ. */
.gap-1 { gap: 0.25rem; }
.gap-1\.5 { gap: 0.375rem; }
.mr-0\.5 { margin-right: 0.125rem; }
.mt-0\.5 { margin-top: 0.125rem; }
.mt-1\.5 { margin-top: 0.375rem; }
.mt-auto { margin-top: auto; }
.py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.h-32 { height: 8rem; }
.leading-snug { line-height: 1.375; }
.text-\[10px\] { font-size: 0.625rem; }
.text-\[11px\] { font-size: 0.6875rem; }
.text-amber-400 { color: #fbbf24; }

/* ---- Mục 101: bỏ nhóm gợi ý addlivetag + thêm nút bật/tắt vòng quét pool.
       4 class dưới đây KHÔNG có trong prebuilt (đã kiểm bằng script, kèm negative
       control) nên nếu không khai báo thì nút bật/tắt và link "Báo lỗi" im lặng
       mất màu hover. Giá trị đúng chuẩn Tailwind. */
.bg-slate-700 { background-color: #334155; }
.hover\:bg-slate-800:hover { background-color: #1e293b; }
.hover\:bg-amber-700:hover { background-color: #b45309; }
.hover\:text-red-500:hover { color: #ef4444; }