*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0b0d12; --bg2:#0f131b; --card:#141924; --line:#232b3a;
  --tx:#e8edf6; --mut:#8d99ae; --acc:#5b8cff; --acc2:#8b5bff;
  --ok:#22c55e; --err:#ef4444; --r:14px;
}
html{-webkit-text-size-adjust:100%}
body{
  min-height:100vh; background:var(--bg); color:var(--tx);
  font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background-image:
    radial-gradient(900px 480px at 12% -8%, rgba(91,140,255,.16), transparent 60%),
    radial-gradient(760px 420px at 92% 0%, rgba(139,91,255,.14), transparent 62%);
  background-attachment:fixed;
}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;font-size:13px}
.wrap{width:100%;max-width:900px;margin:0 auto;padding:0 18px}
.small{font-size:13px}

/* ---------- header ---------- */
.top{border-bottom:1px solid var(--line);background:rgba(11,13,18,.75);backdrop-filter:blur(12px);position:sticky;top:0;z-index:20}
.top-in{display:flex;align-items:center;justify-content:space-between;height:58px}
.brand{display:flex;align-items:center;gap:9px;font-size:16px;letter-spacing:.2px}
.dot{width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,var(--acc),var(--acc2));box-shadow:0 0 14px rgba(91,140,255,.9)}
.top nav{display:flex;gap:18px;font-size:14px}
.top nav a{color:var(--mut)}
.top nav a:hover{color:var(--tx);text-decoration:none}

/* ---------- hero ---------- */
.hero{text-align:center;padding:44px 0 26px}
.hero h1{font-size:clamp(24px,4.4vw,38px);line-height:1.2;letter-spacing:-.6px}
.sub{color:var(--mut);margin-top:12px;font-size:14.5px}
.sub b{color:#c6d3ea}

/* ---------- dropzone ---------- */
.drop{
  border:1.6px dashed #2e3a4f; border-radius:18px; background:linear-gradient(180deg,rgba(20,25,36,.9),rgba(16,20,29,.9));
  padding:34px 20px; cursor:pointer; transition:.18s border-color,.18s background,.18s transform;
}
.drop:hover,.drop.over{border-color:var(--acc);background:linear-gradient(180deg,rgba(28,38,60,.95),rgba(18,24,36,.95))}
.drop.over{transform:scale(1.005)}
.drop-in{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.up-ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;color:#cfe0ff;
  background:linear-gradient(135deg,rgba(91,140,255,.28),rgba(139,91,255,.22));border:1px solid #33405c}
.drop-tx{display:flex;flex-direction:column;gap:3px}
.drop-tx b{font-size:16px}
.drop-tx span{color:var(--mut);font-size:13.5px}
.drop-tx u{text-decoration-color:var(--acc)}

/* ---------- queue ---------- */
.empty{color:var(--mut);text-align:center;padding:26px 0 8px;font-size:14px}
.queue{display:flex;flex-direction:column;gap:12px}
.row{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 15px}
.row-head{display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.fname{font-weight:600;font-size:14.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fsize{color:var(--mut);white-space:nowrap}
.bar{height:6px;background:#1d2434;border-radius:99px;overflow:hidden;margin:11px 0 9px}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--acc),var(--acc2));transition:width .18s}
.row.done .bar i{background:linear-gradient(90deg,#22c55e,#4ade80)}
.row.fail .bar i{background:var(--err)}
.row-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:13px;color:var(--mut)}
.row.done .stat{color:#7ee2a8}
.row.fail .stat{color:#ff9a9a}
.acts{display:flex;gap:8px}
.acts a{color:var(--mut);font-size:13px}
.acts a:hover{color:var(--tx)}
.linkbox{display:none;gap:8px;margin-top:12px;flex-wrap:wrap}
.row.done .linkbox{display:flex}
.linkbox .link{flex:1;min-width:220px;background:#0e1219;border:1px solid var(--line);color:#9fd0ff;border-radius:9px;padding:9px 11px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff;border:0;border-radius:9px;
  padding:10px 16px;font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--mut);font-weight:500}
.btn.ghost:hover{color:var(--tx);border-color:#3a475f}
.btn.sm{padding:8px 12px;font-size:13px}

/* ---------- feats ---------- */
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin:34px 0 10px}
.feats div{background:rgba(20,25,36,.6);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.feats b{display:block;font-size:14px;margin-bottom:5px}
.feats span{color:var(--mut);font-size:13px;line-height:1.5}

.foot{max-width:900px;margin:0 auto;padding:26px 18px 40px;color:#5f6b80;font-size:12.5px;display:flex;flex-direction:column;gap:5px;text-align:center}

/* ---------- card (trang xoá / admin) ---------- */
.center-page{display:grid;place-items:center;min-height:100vh;padding:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:34px;max-width:520px;width:100%;text-align:center}
.card h1{font-size:21px;margin-bottom:8px}
.card p{color:var(--mut);font-size:14px;margin-bottom:14px;word-break:break-all}
.ico{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-size:26px;margin:0 auto 14px}
.ico.ok{background:rgba(34,197,94,.14);color:#4ade80;border:1px solid #1f6b3c}
.ico.err{background:rgba(239,68,68,.14);color:#f87171;border:1px solid #7a2626}
.card .btn{margin-top:6px}

/* ---------- bảng / thanh log ---------- */
.logbar{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;margin:18px 0;font-size:13.5px;color:var(--mut)}
.form-inline{display:flex;gap:9px;flex-wrap:wrap;margin:18px 0}
.form-inline input{flex:1;min-width:220px;background:#0e1219;border:1px solid var(--line);color:var(--tx);border-radius:9px;padding:10px 12px;font:inherit}
.btn.danger{background:linear-gradient(135deg,#ef4444,#dc2626)}
.btn.danger:hover{filter:brightness(1.1)}
.pill{display:inline-block;background:#1b2230;border:1px solid var(--line);border-radius:99px;padding:2px 9px;font-size:12px;color:var(--mut)}

/* ---------- trang quản lý video ---------- */
.mgr-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:24px 0 18px}
.mgr-stats>div{background:rgba(20,25,36,.65);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.mgr-stats b{display:block;font-size:22px;letter-spacing:-.4px}
.mgr-stats span{color:var(--mut);font-size:13px}
.mgr-stats .exts{display:flex;flex-wrap:wrap;gap:6px;align-items:center;grid-column:1/-1}

.mgr-tools{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:16px}
.mgr-tools input[type=search]{flex:1;min-width:200px;background:#0e1219;border:1px solid var(--line);color:var(--tx);border-radius:9px;padding:10px 12px;font:inherit}
.mgr-tools input[type=search]:focus,.mgr-tools select:focus{outline:0;border-color:var(--acc)}
.mgr-tools select{background:#0e1219;border:1px solid var(--line);color:var(--tx);border-radius:9px;padding:10px 12px;font:inherit}

.mgr-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;margin-bottom:16px}
.mgr-all{color:var(--mut);font-size:13.5px;display:flex;align-items:center;gap:8px;cursor:pointer}
.mgr-btns{display:flex;gap:9px;flex-wrap:wrap}
.mgr-btns .btn{background:#1b2230;border:1px solid var(--line);color:var(--tx)}
.mgr-btns .btn:hover{filter:brightness(1.2)}
.mgr-btns .btn.danger{background:linear-gradient(135deg,#ef4444,#dc2626);border:0}

.mgr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.vcard{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.vcard:hover{border-color:#31405c}
.vcard.gone{opacity:.55}
.vsel{position:absolute;top:9px;left:9px;z-index:3;background:rgba(8,10,15,.7);border:1px solid var(--line);border-radius:7px;width:26px;height:26px;display:grid;place-items:center;cursor:pointer}
.vsel input{accent-color:#5b8cff;width:15px;height:15px;cursor:pointer}

.vthumb{position:relative;display:block;aspect-ratio:16/9;background:#0a0d13;border-bottom:1px solid var(--line);overflow:hidden}
.vthumb img{width:100%;height:100%;object-fit:cover;display:block}
.vph{position:absolute;inset:0;display:grid;place-items:center;gap:6px;color:#3b465c;grid-auto-flow:row}
.vph em{font-style:normal;font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:#46536d}
.vthumb:hover .vph{color:#5d6d8c}
.vext{position:absolute;right:8px;bottom:8px;background:rgba(8,10,15,.8);border:1px solid var(--line);border-radius:6px;padding:2px 7px;font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:#9fd0ff}
.vgone{position:absolute;inset:0;display:grid;place-items:center;background:rgba(239,68,68,.14);color:#f87171;font-size:13px;font-weight:600}

.vinfo{padding:11px 12px 8px;display:flex;flex-direction:column;gap:5px}
.vname{font-size:14px;font-weight:600;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word}
.vmeta{display:flex;gap:10px;color:var(--mut);font-size:12.5px}
.vfile{color:#5f6b80;font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.vacts{display:flex;gap:6px;padding:0 12px 12px;flex-wrap:wrap;margin-top:auto}
.vacts .btn{padding:6px 10px;font-size:12.5px}
.vacts .btn.danger{background:transparent;border:1px solid #4b2323;color:#f87171}
.vacts .btn.danger:hover{background:#3b1c1c}

.pager{display:flex;justify-content:center;align-items:center;gap:14px;margin:26px 0 10px;color:var(--mut)}

@media(max-width:560px){
  .mgr-stats{grid-template-columns:1fr 1fr}
  .mgr-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  .mgr-bar{flex-direction:column;align-items:stretch}
  .mgr-btns{justify-content:stretch}
  .mgr-btns .btn{flex:1}
}

@media(max-width:560px){
  .drop-in{flex-direction:column;text-align:center}
  .row-head{flex-direction:column;gap:4px}
  .linkbox .link{min-width:100%}
}