/* ── Đăng nhập ── */
.man-dang-nhap {
  min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 24px 16px;
  background:
    radial-gradient(ellipse at 90% 0%, rgba(245, 201, 51, .35), transparent 50%),
    radial-gradient(ellipse at 0% 100%, rgba(210, 58, 44, .4), transparent 50%),
    linear-gradient(135deg, var(--xanh-dam), var(--xanh));
}
.the-dn {
  width: min(400px, 100%); padding: 36px 28px 28px; border-radius: 22px; background: #fff; text-align: center;
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .45);
}
.the-dn img { margin: -84px auto 12px; border-radius: 50%; box-shadow: 0 0 0 5px #fff, 0 12px 30px rgba(0, 0, 0, .25); }
.the-dn h1 { margin: 0; font-size: 1.4rem; }
.the-dn .ten-phuong { margin: 2px 0 22px; color: var(--muc-3); }
.o-dn { display: block; text-align: left; margin-bottom: 14px; }
.o-dn span { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 6px; }
.o-dn input { width: 100%; min-height: 48px; padding: .7rem .9rem; border-radius: 10px; border: 1.5px solid var(--vien); }
.o-dn input:focus { border-color: var(--xanh); outline: none; box-shadow: 0 0 0 4px color-mix(in srgb, var(--xanh) 18%, transparent); }
.the-dn .nut { width: 100%; min-height: 50px; }
.loi-dn { margin: -4px 0 12px; color: var(--do-dam); font-size: .875rem; text-align: left; }
.ve-trang-chu { display: flex; justify-content: center; gap: 10px; margin-top: 16px; font-size: .875rem; color: var(--muc-3); }
.ve-trang-chu a { color: var(--muc-2); text-decoration: none; font-weight: 600; }
.ve-trang-chu a:hover { color: var(--do-dam); }

/* ── Khung quản trị ── */
.noi-dung { width: min(1180px, 100% - 32px); margin: 24px auto 64px; }
.tab { display: flex; gap: 4px; padding: 4px; border-radius: 12px; background: #e8edf4; overflow-x: auto; scrollbar-width: none; }
.tab button {
  flex: 1 0 auto; display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 16px;
  border: 0; border-radius: 9px; background: transparent; font-weight: 600; color: var(--muc-2); cursor: pointer; white-space: nowrap;
  transition: background-color .15s, color .15s;
}
.tab button:hover { color: var(--muc); }
.tab button[aria-selected="true"] { background: #fff; color: var(--muc); box-shadow: 0 1px 3px rgba(20, 32, 47, .12); }
.tab b { min-width: 24px; padding: 1px 7px; border-radius: 99px; background: #d5dde8; font-size: .75rem; font-variant-numeric: tabular-nums; }
.tab button[data-tab="cho"] b:not(:empty) { background: var(--do); color: #fff; }

.thanh-cong-cu {
  position: sticky; top: 69px; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px;
  margin: 16px 0; padding: 10px 14px; border-radius: 14px; background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px);
  border: 1px solid var(--vien);
}
.chon-tat-ca { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: .9rem; cursor: pointer; }
input[type=checkbox] { width: 18px; height: 18px; accent-color: var(--do); }
#locKp { min-height: 38px; padding: 0 10px; border-radius: 8px; border: 1px solid var(--vien); background: #fff; }
.da-chon { color: var(--muc-3); font-size: .875rem; }
.hanh-dong { display: flex; gap: 8px; margin-left: auto; flex-wrap: wrap; }

.luoi-anh { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.the-anh {
  position: relative; display: flex; flex-direction: column; border-radius: 14px; overflow: hidden; background: #fff;
  border: 1px solid var(--vien); box-shadow: 0 1px 2px rgba(20, 32, 47, .04);
  transition: box-shadow .2s, border-color .2s, transform .2s var(--em);
}
.the-anh:hover { box-shadow: var(--bong); }
.the-anh.chon { border-color: var(--do); box-shadow: 0 0 0 2px var(--do); }
.the-anh .hinh { position: relative; aspect-ratio: 4 / 3; background: #e9eef5; cursor: zoom-in; border: 0; padding: 0; display: block; width: 100%; }
.the-anh .hinh { overflow: hidden; }
.the-anh .hinh img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.the-anh .o-chon {
  position: absolute; top: 10px; left: 10px; z-index: 1; display: grid; place-items: center; width: 34px; height: 34px;
  border-radius: 9px; background: rgba(255, 255, 255, .92); box-shadow: 0 2px 6px rgba(0, 0, 0, .2); cursor: pointer;
}
.the-anh .nhan-kp {
  position: absolute; top: 10px; right: 10px; padding: 4px 10px; border-radius: 99px; font-size: .75rem; font-weight: 700;
  background: rgba(20, 32, 47, .78); color: #fff; backdrop-filter: blur(6px);
}
.the-anh .than { padding: 12px 14px; flex: 1; display: flex; flex-direction: column; gap: 2px; font-size: .85rem; }
.the-anh .than strong { font-size: .95rem; }
.the-anh .mo { color: var(--muc-3); }
.the-anh .nut-the { display: flex; gap: 6px; padding: 0 14px 14px; }
.the-anh .nut-the .nut { flex: 1; }

.rong { padding: 64px 16px; text-align: center; color: var(--muc-3); }
.rong svg { width: 56px; height: 56px; fill: none; stroke: #b8c3d1; stroke-width: 2.2; stroke-linejoin: round; }

.goi-y { color: var(--muc-2); margin: 20px 0 16px; }
.ds-kp { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; }
.ds-kp li { display: flex; align-items: center; gap: 8px; padding: 8px; border-radius: 12px; background: #fff; border: 1px solid var(--vien); }
.ds-kp .so { width: 32px; text-align: center; font-weight: 700; color: var(--muc-3); font-variant-numeric: tabular-nums; }
.ds-kp input { flex: 1; min-width: 0; min-height: 38px; padding: 0 10px; border-radius: 8px; border: 1px solid var(--vien); }

.ds-bo-cuc { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.ds-bo-cuc button {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 14px; border-radius: 16px; cursor: pointer;
  background: #fff; border: 1.5px solid var(--vien); text-align: left; transition: border-color .15s, box-shadow .15s, transform .1s var(--em);
}
.ds-bo-cuc button:hover { border-color: #bcc7d4; }
.ds-bo-cuc button:active { transform: scale(.98); }
.ds-bo-cuc button[aria-checked="true"] { border-color: var(--do); box-shadow: 0 0 0 2px var(--do); }
.ds-bo-cuc b { margin-top: 10px; font-size: 1rem; }
.ds-bo-cuc small { color: var(--muc-3); }
.mo-hinh { display: grid; gap: 5px; width: 100%; aspect-ratio: 16 / 9; padding: 6px; border-radius: 10px; background: #14202f; }
.mo-hinh i { border-radius: 5px; background: linear-gradient(135deg, var(--xanh), var(--xanh-dam)); }
button[aria-checked="true"] .mo-hinh i { background: linear-gradient(135deg, var(--do), var(--vang)); }
.mh-2 { grid-template: 1fr / 1fr 1fr; }
.mh-3 { grid-template: 1fr 1fr / 2fr 1fr; }
.mh-3 i:first-child { grid-row: span 2; }
.mh-4 { grid-template: 1fr 1fr / 1fr 1fr; }

/* ── Hộp thoại ── */
dialog { border: 0; padding: 0; color: inherit; }
dialog::backdrop { background: rgba(7, 11, 18, .72); backdrop-filter: blur(4px); }
.hop-xem { background: transparent; max-width: 96vw; max-height: 96vh; overflow: visible; }
.hop-xem img { max-width: 92vw; max-height: 84vh; border-radius: 10px; box-shadow: 0 30px 80px rgba(0, 0, 0, .5); }
.hop-xem p { color: #fff; text-align: center; margin: 12px 0 0; }
.hop-xem .dong {
  position: fixed; top: 16px; right: 16px; width: 44px; height: 44px; border-radius: 50%; border: 0;
  background: rgba(255, 255, 255, .15); color: #fff; font-size: 26px; cursor: pointer;
}
.hop-hoi { width: min(420px, calc(100vw - 32px)); border-radius: 18px; background: #fff; box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .5); }
.hop-hoi form { padding: 24px; }
.hop-hoi h2 { margin: 0 0 8px; font-size: 1.2rem; }
.hop-hoi p { margin: 0 0 20px; color: var(--muc-2); }
.hop-hoi .nhom-nut { display: flex; justify-content: flex-end; gap: 8px; }
dialog[open] { animation: hien-hop .25s var(--em); }
@keyframes hien-hop { from { opacity: 0; transform: scale(.96); } }

@media (max-width: 640px) {
  .thanh-cong-cu { top: 69px; }
  .hanh-dong { margin-left: 0; width: 100%; }
  .hanh-dong .nut { flex: 1; }
  .luoi-anh { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
  .dau-trang small { display: none; }
}

/* Mô tả ngắn trên thẻ ảnh: bấm để sửa */
.the-anh .ghi {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-top: 6px; padding: 6px 8px; border: 1px dashed transparent; border-radius: 8px; background: #f4f7fb;
  color: var(--muc-2); font: inherit; font-size: .85rem; text-align: left; cursor: text; transition: border-color .15s, background-color .15s;
}
.the-anh .ghi:hover { border-color: var(--xanh); background: #fff; }
.the-anh .ghi--trong { color: var(--xanh-dam); font-weight: 600; background: transparent; border-color: #c8d3e0; cursor: pointer; }
.o-mo-ta { width: 100%; min-height: 46px; margin-bottom: 18px; padding: .65rem .85rem; border-radius: 10px; border: 1.5px solid var(--vien); }
.o-mo-ta:focus { border-color: var(--xanh); outline: none; box-shadow: 0 0 0 4px color-mix(in srgb, var(--xanh) 18%, transparent); }

/* ── IP người gửi + nhật ký ── */
.ip-the {
  align-self: flex-start; margin-top: 4px; padding: 2px 8px; border: 1px solid var(--vien); border-radius: 6px; background: #f4f7fb;
  color: var(--muc-2); font: inherit; font-size: .78rem; font-variant-numeric: tabular-nums; cursor: pointer;
}
.ip-the:hover { border-color: var(--xanh); color: var(--xanh-dam); background: #fff; }
.loc-ip { flex: 1; min-width: 200px; max-width: 320px; min-height: 38px; padding: 0 10px; border-radius: 8px; border: 1px solid var(--vien); }
.bang-cuon { overflow-x: auto; border: 1px solid var(--vien); border-radius: 14px; background: #fff; }
.bang-nk { width: 100%; border-collapse: collapse; font-size: .875rem; }
.bang-nk th { position: sticky; top: 0; padding: 10px 12px; background: #f4f7fb; color: var(--muc-2); font-size: .78rem; text-align: left; white-space: nowrap; }
.bang-nk td { padding: 9px 12px; border-top: 1px solid var(--vien); vertical-align: top; }
.bang-nk tr:hover td { background: #fafcff; }
.bang-nk td small { display: block; margin-top: 3px; color: var(--muc-3); font-size: .75rem; max-width: 280px; }
.nk-luc, .nk-tb { white-space: nowrap; color: var(--muc-2); }
.kq { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: .75rem; font-weight: 700; white-space: nowrap; }
.kq-ok { background: color-mix(in srgb, var(--xanh-la) 14%, #fff); color: #157a52; }
.kq-loi { background: color-mix(in srgb, var(--do) 12%, #fff); color: var(--do-dam); }
.kq-qua { background: #fff4d6; color: #8a5a00; }

/* ── Lượt xem ── */
.o-so { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin-top: 20px; }
.o-so__muc { display: flex; flex-direction: column; gap: 2px; padding: 16px 18px; border: 1px solid var(--vien); border-radius: 14px; background: #fff; }
.o-so__muc small { display: flex; align-items: center; gap: 6px; color: var(--muc-2); font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }
.o-so__muc b { font-size: 2rem; line-height: 1.1; font-variant-numeric: tabular-nums; }
.o-so__muc span { color: var(--muc-3); font-size: .85rem; }
.o-so__muc--song b { color: #157a52; }
.cham-song { width: 8px; height: 8px; border-radius: 50%; background: #22a06b; box-shadow: 0 0 0 3px rgba(34, 160, 107, .2); }
.hai-cot { display: grid; grid-template-columns: 3fr 2fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .hai-cot { grid-template-columns: 1fr; } }
.tieu-de-nho { margin: 0 0 8px; font-size: .95rem; }
.bang-lx td { white-space: nowrap; font-variant-numeric: tabular-nums; }
.bang-lx td:nth-child(3) { width: 40%; }
.thanh-lx { display: block; min-width: 60px; height: 8px; border-radius: 99px; background: #eef2f7; overflow: hidden; }
.thanh-lx i { display: block; height: 100%; border-radius: inherit; background: var(--xanh, #2f8fd6); }
.tieu-de-nho small { color: var(--muc-3); font-weight: 500; font-size: .8rem; }
.tieu-de-nk { margin-top: 28px; }
.bang-cuon--cao { max-height: 560px; overflow-y: auto; }
.bang-cuon--cao .bang-nk td { white-space: nowrap; }
.tieu-de-tk { margin: 18px 0 8px; font-size: .9rem; }
.tieu-de-tk small { color: var(--muc-3); font-weight: 500; }
.luoi-tk { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; margin-bottom: 16px; }
.bang-tk td:first-child { max-width: 150px; overflow: hidden; text-overflow: ellipsis; }
.bang-tk td:nth-child(3) { width: 35%; }
.bang-nk-xem td small { display: block; margin-top: 2px; }
.hai-cot--duoi { margin-top: 16px; }
.hai-cot--duoi .goi-y { margin: 0; }
.bang-tk { table-layout: fixed; }
.bang-tk th:nth-child(1), .bang-tk td:nth-child(1) { width: 52%; max-width: none; }
.bang-tk th:nth-child(2), .bang-tk td:nth-child(2) { width: 18%; }
.bang-tk .thanh-lx { min-width: 0; }