*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#080b12; --panel:#111827; --line:#22304a; --text:#e8edf7; --muted:#8ea0bf;
  --acc:#5b8cff; --acc2:#22d3a6; --danger:#ff5f6d; --r:14px;
}
html,body{height:100%}
body{background:radial-gradient(1100px 650px at 12% -12%,#16233d 0%,var(--bg) 60%);color:var(--text);
  font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,Arial,"Noto Sans",sans-serif;padding-bottom:24px;overflow-x:hidden}
header{display:flex;align-items:center;gap:12px;padding:11px 16px;border-bottom:1px solid var(--line);
  background:rgba(9,13,22,.8);backdrop-filter:blur(10px);position:sticky;top:0;z-index:30;flex-wrap:wrap}
.logo{font-weight:800;font-size:17px;letter-spacing:.2px}
.logo b{color:var(--acc)}
.badge{font-size:11px;color:var(--muted);border:1px solid var(--line);padding:3px 9px;border-radius:99px}
.spacer{flex:1}
button,select,input,textarea{font:inherit;color:var(--text)}
button{background:#162034;border:1px solid var(--line);padding:8px 12px;border-radius:10px;cursor:pointer;transition:.15s}
button:hover:not(:disabled){border-color:var(--acc);transform:translateY(-1px)}
button:disabled{opacity:.4;cursor:not-allowed}
.btn-acc{background:linear-gradient(135deg,#5b8cff,#7d5bff);border:0;font-weight:700}
.btn-go{background:linear-gradient(135deg,#26e0ad,#12a37c);border:0;font-weight:800;color:#04231a}
.btn-sm{padding:5px 8px;border-radius:8px;font-size:12px}
.btn-rec{background:linear-gradient(135deg,#ff5f6d,#c2185b);border:0;font-weight:700}
.app{display:grid;grid-template-columns:minmax(290px,330px) minmax(520px,1fr) minmax(340px,390px);
  gap:12px;padding:12px;align-items:start;max-width:1900px;margin:0 auto}
@media(min-width:1181px){
  .app>.panel:first-child,.app>.panel:last-child{position:sticky;top:68px;max-height:calc(100vh - 82px);overflow-y:auto;overflow-x:hidden}
  .app>.panel:first-child::-webkit-scrollbar,.app>.panel:last-child::-webkit-scrollbar{width:7px}
  .app>.panel:first-child::-webkit-scrollbar-thumb,.app>.panel:last-child::-webkit-scrollbar-thumb{background:#22304a;border-radius:8px}
}
@media(max-width:1380px) and (min-width:1181px){
  .app{grid-template-columns:minmax(270px,300px) minmax(460px,1fr) minmax(320px,350px);gap:10px;padding:10px}
}
@media(max-width:1180px) and (min-width:781px){
  .app{grid-template-columns:minmax(280px,320px) minmax(0,1fr)}
  .app>.panel:nth-child(3){grid-column:1/-1}
  .app>.panel:nth-child(3)>h3{position:sticky;top:0;z-index:3;background:#111827;padding:8px 0;margin-top:-4px}
}
@media(max-width:780px){.app{grid-template-columns:minmax(0,1fr);padding:8px;gap:9px}}
.panel{background:linear-gradient(180deg,rgba(20,29,47,.92),rgba(12,18,30,.92));border:1px solid var(--line);
  border-radius:var(--r);padding:12px;min-width:0;scrollbar-gutter:stable}
.panel h3{font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:var(--muted);margin:2px 0 10px}
.drop{border:2px dashed #2c3c5e;border-radius:12px;padding:18px 12px;text-align:center;color:var(--muted);
  transition:.15s;cursor:pointer;background:#0d1524}
.drop.hot{border-color:var(--acc2);background:#0f2a25;color:var(--text)}
.rowb{display:flex;gap:8px;margin-top:10px}
.rowb button{flex:1;min-width:0}
.list{margin-top:12px;display:flex;flex-direction:column;gap:9px;max-height:58vh;overflow-y:auto;overflow-x:hidden;padding-right:4px}
.list::-webkit-scrollbar{width:8px}.list::-webkit-scrollbar-thumb{background:#22304a;border-radius:8px}
/* Thẻ cảnh — hai điều bắt buộc:
   1) cột giữa phải co được (minmax(0,1fr) + min-width:0) để tên file dài không
      đẩy cột nút ↑ ↓ ✕ ▣ ra ngoài mép panel;
   2) flex:0 0 auto để thẻ giữ đúng chiều cao nội dung — danh sách có max-height
      nên nếu để thẻ co lại thì nội dung bị bóp dẹt, trông như các thẻ đè lên nhau.
      Vì lý do này KHÔNG được đặt overflow:hidden cho .item. */
.item{display:grid;grid-template-columns:66px minmax(0,1fr) 30px;gap:9px;background:#0f1728;border:1px solid var(--line);
  border-radius:12px;padding:8px;min-width:0;flex:0 0 auto}
.item>*{min-width:0}
.item.drag{opacity:.4}
.item.over{border-color:var(--acc2)}
.item.on{border-color:var(--acc)}
.item .thumb{width:66px;height:66px;object-fit:cover;border-radius:9px;background:#000;display:block}
.item .nm{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:5px}
.item .nm i{font-style:normal;color:var(--acc2)}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:6px;min-width:0}
.grid2>*{min-width:0}
.grid2.mt{margin-top:5px}
.item select,.item input{width:100%;min-width:0;max-width:100%;background:#0b1220;border:1px solid #24304a;border-radius:8px;padding:5px 6px;font-size:12px}
.item .ops{display:flex;flex-direction:column;gap:4px;min-width:0}
.item .ops button{width:100%;padding:3px 0;font-size:12px;border-radius:7px;line-height:1.25;text-align:center}
.item .ops button:hover:not(:disabled){transform:none}
.item .ops button[data-sa]:not(.sv-on){color:var(--acc2);border-color:#27506a}
@media(max-width:560px){
  .item{grid-template-columns:56px minmax(0,1fr)}
  .item .thumb{width:56px;height:56px}
  .item .ops{grid-column:1/-1;flex-direction:row;gap:6px;margin-top:2px}
  .item .ops button{flex:1;padding:7px 0;font-size:13px}
  .list .item .ops button[data-sa]{font-size:13px}
  .list{max-height:52vh}
}
@media(max-width:420px){
  .grid2{grid-template-columns:minmax(0,1fr)}
}
.stage{display:flex;flex-direction:column;gap:10px}
.cv{background:#000;border:1px solid var(--line);border-radius:var(--r);display:block;margin:0 auto;
  max-width:100%;max-height:58vh;width:auto;height:auto;box-shadow:0 18px 60px rgba(0,0,0,.55)}
@media(max-width:1180px){.cv{max-height:62vh}}
@media(max-width:780px){.cv{max-height:56vh}.panel{padding:10px;border-radius:11px}header{padding:9px 10px;gap:8px}.badge{display:none}}
.tl{position:relative;height:44px;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#0b1220}
.tlrow{display:flex;height:100%;width:100%}
.tlseg{position:relative;height:100%;min-width:3px;background:#16233d center center/cover no-repeat;
  border-right:1px solid rgba(0,0,0,.55);cursor:pointer;overflow:hidden}
.tlseg:hover{filter:brightness(1.3)}
.tlseg b{position:absolute;left:4px;top:3px;font-size:10px;font-weight:700;background:rgba(0,0,0,.6);
  border-radius:5px;padding:0 4px}
.tlseg.on{box-shadow:inset 0 0 0 2px var(--acc2)}
.tlhead{position:absolute;top:0;bottom:0;left:0;width:2px;background:var(--acc2);
  box-shadow:0 0 10px var(--acc2);pointer-events:none}
.transport{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.seek{flex:1;min-width:180px;accent-color:var(--acc)}
.time{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12px;min-width:96px;text-align:right}
.field{margin-bottom:11px}
.field>label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.field select,.field input[type=text],.field input[type=number]{width:100%;min-width:0;background:#0b1220;border:1px solid #24304a;
  border-radius:9px;padding:7px 8px}
.field input[type=color]{width:100%;height:34px;background:#0b1220;border:1px solid #24304a;border-radius:9px;
  padding:2px;cursor:pointer}
input[type=range]{width:100%;accent-color:var(--acc)}
.inline{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:9px;color:#cfd9ee}
.inline input[type=checkbox]{width:16px;height:16px;accent-color:var(--acc2)}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px}
.val{float:right;color:var(--acc2);font-variant-numeric:tabular-nums}
.expbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:12px}
.prog{flex:1;min-width:160px;height:9px;background:#0b1220;border-radius:99px;overflow:hidden;border:1px solid var(--line)}
.prog i{display:block;height:100%;width:0;background:linear-gradient(90deg,#26e0ad,#5b8cff);transition:width .2s}
.status{font-size:12px;color:var(--muted)}
.status.rec{color:var(--danger);font-weight:700}
.recdot{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--danger);margin-right:6px;
  animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.2}}
.result{margin-top:12px;display:none;gap:12px;align-items:flex-start;flex-wrap:wrap}
.result video{max-width:280px;border-radius:10px;border:1px solid var(--line)}
a.dl{display:inline-block;background:linear-gradient(135deg,#26e0ad,#12a37c);color:#04231a;font-weight:800;
  padding:9px 14px;border-radius:10px;text-decoration:none}
.hint{font-size:11.5px;color:#6f7f9c;margin-top:8px;line-height:1.5}
.hidden-media{position:absolute;left:-9999px;top:0;width:2px;height:2px;opacity:.01;pointer-events:none}
kbd{background:#0b1220;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 6px;font-size:11px}