:root{
  --bg:#0b0f14;
  --card:#111723;
  --muted:#8ea3b0;
  --text:#e8f0f6;
  --blue:#4aa3ff;
  --line:#1c2432;
  --chip:#0e1521;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell;
}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:32px auto;padding:0 16px}

.header{display:flex;gap:18px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;margin-bottom:10px}
.title h1{margin:0;font-size:24px}
.crumbs{color:var(--muted);font-size:14px;margin-top:6px}
.crumbs a{color:var(--muted)}
.sep{margin:0 6px}

.toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.search input{
  background:var(--chip);
  border:1px solid var(--line);
  border-radius:10px;
  padding:10px 12px;
  color:var(--text);
  min-width:260px;
  outline:none;
}
.controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.select{
  display:flex;align-items:center;gap:6px;
  background:var(--chip);
  border:1px solid var(--line);
  border-radius:10px;
  padding:6px 8px;
  color:var(--muted);
  font-size:14px;
}
.select select{
  appearance:none;border:0;background:transparent;color:var(--text);font:inherit;outline:none;padding-right:12px;cursor:pointer;
}
.viewtoggles .btn{min-width:64px}

.back{margin:10px 0 16px}

.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.hidden{display:none !important}

.list{width:100%;border-collapse:collapse}
.list thead th{
  background:#0f1623;color:#a9bac8;text-align:left;font-weight:600;font-size:14px;
  padding:12px;border-bottom:1px solid var(--line)
}
.list tbody td{padding:12px;border-bottom:1px solid var(--line);vertical-align:middle}
.list tbody tr:hover{background:#0e1521}
.w-120{width:120px}
.w-140{width:140px}
.w-260{width:260px}
.empty{color:var(--muted);text-align:center;padding:28px 12px}

.icon{display:inline-block;width:16px;height:16px;vertical-align:-3px;margin-right:8px;opacity:.95;border-radius:3px}
.icon.folder{background:linear-gradient(#f1c40f,#f39c12)}
.icon.file{background:linear-gradient(#95a5a6,#7f8c8d)}
/* Simple extension tags, tweak as you like */
.icon.file.ext-pdf{background:linear-gradient(#ff6b6b,#c0392b)}
.icon.file.ext-zip,.icon.file.ext-tgz,.icon.file.ext-gz{background:linear-gradient(#f39c12,#d35400)}
.icon.file.ext-mp3,.icon.file.ext-wav{background:linear-gradient(#2ecc71,#27ae60)}
.icon.file.ext-mp4,.icon.file.ext-mkv{background:linear-gradient(#8e44ad,#9b59b6)}
.icon.file.ext-jpg,.icon.file.ext-jpeg,.icon.file.ext-png,.icon.file.ext-webp{background:linear-gradient(#3498db,#2980b9)}
.icon.file.ext-txt,.icon.file.ext-md{background:linear-gradient(#95a5a6,#7f8c8d)}
.icon.file.ext-json,.icon.file.ext-csv{background:linear-gradient(#16a085,#1abc9c)}

.actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:8px 12px;border-radius:10px;border:1px solid var(--line);
  background:#0f1623;color:var(--text);text-decoration:none;font-size:14px;cursor:pointer
}
.btn:hover{filter:brightness(1.12)}
.btn.primary{background:#1a2a46}
.btn.ghost{background:transparent}
.btn.active{outline:2px solid var(--blue);outline-offset:2px}

.footer{color:var(--muted);font-size:13px;margin:12px 4px}

/* Grid cards */
.grid{padding:14px}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.card{
  border:1px solid var(--line);
  background:#0f1623;
  border-radius:14px;
  padding:12px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.thumb{
  display:block;width:100%;height:110px;border-radius:10px;border:1px dashed var(--line);
  background:repeating-linear-gradient(45deg,transparent 0 8px,rgba(255,255,255,.05) 8px 16px);
}
.thumb.folder{background:linear-gradient(#f1c40f,#f39c12)}
.thumb.file{background:linear-gradient(#95a5a6,#7f8c8d)}
.thumb.file.ext-pdf{background:linear-gradient(#ff6b6b,#c0392b)}
.thumb.file.ext-zip,.thumb.file.ext-tgz,.thumb.file.ext-gz{background:linear-gradient(#f39c12,#d35400)}
.thumb.file.ext-mp3,.thumb.file.ext-wav{background:linear-gradient(#2ecc71,#27ae60)}
.thumb.file.ext-mp4,.thumb.file.ext-mkv{background:linear-gradient(#8e44ad,#9b59b6)}
.thumb.file.ext-jpg,.thumb.file.ext-jpeg,.thumb.file.ext-png,.thumb.file.ext-webp{background:linear-gradient(#3498db,#2980b9)}
.thumb.file.ext-json,.thumb.file.ext-csv{background:linear-gradient(#16a085,#1abc9c)}

.filename{margin:0;font-size:16px;line-height:1.3;word-break:break-word}
.filename a{color:var(--text)}
.meta{color:var(--muted);font-size:13px;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.card-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}

@media (max-width:980px){
  .cards{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:720px){
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .w-120,.w-140,.w-260{width:auto}
  .list thead{display:none}
  .list tbody tr{display:block;border-bottom:1px solid var(--line);padding:8px 0}
  .list tbody td{display:block;border:0;padding:6px 12px}
  .list tbody td.actions{padding:10px 12px}
}
@media (max-width:420px){
  .cards{grid-template-columns:1fr}
}
.hidden{display:none}