:root {
  --red: #ee3444; --red-soft: #fdecee; --ink: #16181d; --ink-2: #4a4f5a; --muted: #8a909c;
  --line: #e7e8ec; --bg: #f6f7f9; --card: #fff; --ok: #1f9d55; --ok-soft: #e6f6ed; --warn: #b7791f; --warn-soft: #fdf3e1;
  --radius: 12px; --shadow: 0 1px 2px rgba(16,24,40,.05), 0 4px 16px rgba(16,24,40,.06);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: Barlow, system-ui, sans-serif; color: var(--ink); background: var(--bg); font-size: 15px; line-height: 1.45; }
a { color: inherit; }
button, input, select { font: inherit; }
.muted { color: var(--muted); }
.error { background: var(--red-soft); color: #b4232f; padding: 10px 12px; border-radius: 8px; }

/* Thanh trên */
.top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 20px; padding: 10px 24px; background: #fff; border-bottom: 1px solid var(--line); }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 18px; letter-spacing: -.01em; }
.logo i { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: var(--red); color: #fff; font-style: normal; font-weight: 800; }
.logo small { display: block; font-size: 10px; font-weight: 600; letter-spacing: .12em; color: var(--muted); }
.tabs { display: flex; gap: 4px; }
.tabs a { white-space: nowrap; text-decoration: none; padding: 8px 14px; border-radius: 8px; font-weight: 600; color: var(--ink-2); }
.tabs a:hover { background: var(--bg); }
.tabs a.on { background: var(--red-soft); color: var(--red); }
.top-stats { margin-left: auto; display: flex; gap: 16px; color: var(--ink-2); font-size: 13px; }
.top-stats b { color: var(--ink); font-weight: 700; }
.btn { border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 9px 16px; font-weight: 600; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.btn:hover { border-color: #cfd2d9; }
.btn.primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn.primary:hover { background: #d92b3b; }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 12px; font-size: 13px; }

/* Khung trang */
main { padding: 20px 24px 60px; max-width: 1600px; margin: 0 auto; }
.page-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.page-head h1 { margin: 0; font-size: 26px; letter-spacing: -.02em; }
.page-head p { margin: 4px 0 0; color: var(--muted); }
.layout { display: grid; grid-template-columns: 260px 1fr; gap: 20px; align-items: start; }

/* Bộ lọc */
.filters { position: sticky; top: 76px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; max-height: calc(100vh - 96px); overflow: auto; }
.filters h3 { margin: 16px 0 8px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.filters h3:first-child { margin-top: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 11px; font-size: 13px; cursor: pointer; color: var(--ink-2); }
.chip.on { background: var(--ink); border-color: var(--ink); color: #fff; }
.ind-list { display: flex; flex-direction: column; gap: 2px; }
.ind-list button { text-align: left; border: 0; background: transparent; padding: 6px 8px; border-radius: 6px; cursor: pointer; display: flex; justify-content: space-between; gap: 8px; color: var(--ink-2); }
.ind-list button:hover { background: var(--bg); }
.ind-list button.on { background: var(--red-soft); color: var(--red); font-weight: 600; }
.ind-list small { color: var(--muted); }
.ind-group { margin: 12px 8px 4px; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--ink); }
.ind-group:first-of-type { margin-top: 8px; }
.group-title { font-size: 18px; margin: 24px 0 12px; }
.group-title:first-of-type { margin-top: 0; }
.star { color: var(--red); }

/* Thanh tìm */
.searchbar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.searchbar input[type=search] { flex: 1 1 320px; border: 1px solid var(--line); border-radius: 10px; padding: 11px 14px; background: #fff; }
.searchbar input:focus, .searchbar select:focus { outline: 2px solid var(--red-soft); border-color: var(--red); }
.searchbar select { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: #fff; }
.result-count { color: var(--muted); font-size: 14px; margin: 0 0 12px; }

/* Lưới quảng cáo */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; cursor: pointer; transition: box-shadow .15s, transform .15s; text-align: left; padding: 0; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-1px); }
.card:focus-visible { outline: 3px solid var(--red); }
.thumb { position: relative; aspect-ratio: 4 / 5; background: #eceef2; overflow: hidden; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb .noimg { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 13px; padding: 16px; text-align: center; }
.thumb .play { position: absolute; left: 10px; bottom: 10px; background: rgba(0,0,0,.65); color: #fff; font-size: 12px; padding: 3px 8px; border-radius: 6px; font-weight: 600; }
.thumb .rank { position: absolute; right: 10px; top: 10px; background: var(--red); color: #fff; font-size: 12px; padding: 3px 8px; border-radius: 6px; font-weight: 700; }
.card-body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-brand { display: flex; justify-content: space-between; gap: 8px; font-weight: 700; }
.card-brand small { color: var(--muted); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 50%; }
.card-text { color: var(--ink-2); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; white-space: pre-line; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.badge { font-size: 12px; padding: 3px 8px; border-radius: 6px; background: var(--bg); color: var(--ink-2); font-weight: 600; }
.badge.days { background: var(--ok-soft); color: var(--ok); }
.badge.off { background: #f0f1f4; color: var(--muted); }
.badge.win { background: #fff4d6; color: #9a6700; }
.badge.b-winning { background: var(--red); color: #fff; }
.badge.b-rising { background: #2856c7; color: #fff; }
.badge.b-evergreen { background: #fff4d6; color: #9a6700; }
.badge.b-scaled { background: #efe7ff; color: #6b3fd6; }
.thumb .rank.score { min-width: 34px; text-align: center; font-size: 13px; }
.chip small { color: inherit; opacity: .6; }
.ai-box { background: #f7f8ff; border: 1px solid #e3e7fb; border-radius: 10px; padding: 4px 14px; margin-top: 12px; }
.ai-box h3 { margin: 10px 0 0; font-size: 14px; color: #2856c7; letter-spacing: .02em; }
.badge.new { background: #e8f0ff; color: #2856c7; }
.presets { display: flex; gap: 8px; margin: -4px 0 16px; flex-wrap: wrap; }
.preset { border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 9px 16px; font-weight: 700; cursor: pointer; color: var(--ink-2); }
.preset:hover { border-color: #cfd2d9; }
.preset.on { background: var(--ink); border-color: var(--ink); color: #fff; }
.preset.p-long.on { background: #9a6700; border-color: #9a6700; }
.preset.p-new.on { background: #2856c7; border-color: #2856c7; }
.week-groups { display: grid; gap: 12px; }
.week-group { border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.wg-head { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.wg-samples { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; }
.wg-sample { display: flex; gap: 8px; align-items: center; text-align: left; border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 6px; cursor: pointer; font-size: 13px; color: var(--ink-2); }
.wg-sample img { width: 44px; height: 44px; object-fit: cover; border-radius: 6px; flex: none; }
.badge.ch { background: var(--warn-soft); color: var(--warn); }
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 24px; }

/* Ngăn chi tiết */
.drawer { position: fixed; inset: 0; z-index: 50; background: rgba(16,18,24,.45); display: none; }
.drawer.open { display: block; }
.drawer-panel { position: absolute; right: 0; top: 0; bottom: 0; width: min(920px, 100%); background: #fff; overflow: auto; padding: 24px 28px 40px; }
.drawer-close { position: absolute; right: 16px; top: 12px; border: 0; background: transparent; font-size: 30px; cursor: pointer; color: var(--muted); }
.detail { display: grid; grid-template-columns: 340px 1fr; gap: 24px; }
.detail-media video, .detail-media img { width: 100%; border-radius: 10px; background: #000; display: block; }
.detail-media .more { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-top: 8px; }
.detail-media .more img { aspect-ratio: 1; object-fit: cover; }
.detail h2 { margin: 0 0 4px; font-size: 22px; }
.detail .body { white-space: pre-line; color: var(--ink-2); background: var(--bg); border-radius: 10px; padding: 14px; margin: 12px 0; }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 6px 12px; font-size: 14px; margin: 12px 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }
.timeline { display: flex; gap: 3px; align-items: end; height: 48px; margin: 8px 0 4px; }
.timeline span { flex: 1; background: var(--red); border-radius: 2px 2px 0 0; min-width: 4px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }

/* Bảng */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 16px; }
.panel h2 { margin: 0 0 12px; font-size: 18px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
tbody tr:hover { background: #fafbfc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tier { display: inline-block; min-width: 22px; text-align: center; border-radius: 5px; font-weight: 700; font-size: 12px; padding: 1px 5px; }
.tier.H { background: var(--red-soft); color: var(--red); }
.tier.W { background: var(--warn-soft); color: var(--warn); }
.tier.C { background: #eef0f3; color: var(--muted); }
.ind-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.ind-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; text-decoration: none; display: block; }
.ind-card:hover { box-shadow: var(--shadow); }
.ind-card h3 { margin: 0 0 6px; font-size: 17px; }
.ind-card .nums { display: flex; gap: 16px; color: var(--ink-2); font-size: 14px; margin-bottom: 10px; }
.ind-card .nums b { color: var(--ink); font-size: 18px; }
.ind-card .chips span { font-size: 12px; background: var(--bg); padding: 2px 8px; border-radius: 999px; color: var(--ink-2); }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat b { display: block; font-size: 26px; letter-spacing: -.02em; }
.stat span { color: var(--muted); font-size: 13px; }
.bar { height: 8px; background: var(--bg); border-radius: 99px; overflow: hidden; margin-top: 8px; }
.bar i { display: block; height: 100%; background: var(--red); }
.empty { padding: 48px 16px; text-align: center; color: var(--muted); background: var(--card); border: 1px dashed var(--line); border-radius: var(--radius); }
.loading { color: var(--muted); padding: 32px 0; text-align: center; }

/* Đăng nhập */
.login-page { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(420px, 100%); background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 32px; box-shadow: var(--shadow); }
.login-card h1 { margin: 24px 0 4px; font-size: 24px; }
.login-card form { display: grid; gap: 14px; margin-top: 18px; }
.login-card label { display: grid; gap: 6px; font-weight: 600; font-size: 14px; }
.login-card input { border: 1px solid var(--line); border-radius: 10px; padding: 11px 12px; }
.login-card .btn { justify-content: center; padding: 12px; }

@media (max-width: 1200px) { .top-stats { display: none; } }
@media (max-width: 1000px) {
  .layout { grid-template-columns: 1fr; }
  .filters { position: static; max-height: none; }
  .detail { grid-template-columns: 1fr; }
  .top-stats { display: none; }
}
@media (max-width: 640px) {
  .top { flex-wrap: wrap; padding: 10px 16px; gap: 10px; }
  .tabs { order: 3; width: 100%; overflow-x: auto; }
  .logo small { display: none; }
  main { padding: 16px; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .card-body { padding: 10px; }
  .drawer-panel { padding: 20px 16px 32px; }
  .kv { grid-template-columns: 110px 1fr; }
  table { font-size: 13px; }
  .hide-sm { display: none; }
}