:root{
  --bg:#0b0f1a; --bg2:#0e1424; --panel:#121829; --panel2:#0d1322;
  --border:#1e2941; --border2:#2c3a5a; --text:#e8eefc; --muted:#8b97b5;
  --muted2:#5d6b8c; --accent:#4f7cff; --accent2:#3d68ef; --accentSoft:#1a2440;
  --good:#34d399; --warn:#ff8095; --chip:#1a2440; --radius:14px;
}
html[data-theme="light"]{
  --bg:#eef2fb; --bg2:#ffffff; --panel:#ffffff; --panel2:#f3f6fd;
  --border:#dce4f5; --border2:#c3d0ea; --text:#10182b; --muted:#5a6788;
  --muted2:#8a97b5; --accentSoft:#e7eeff; --chip:#eaf0ff;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,"Segoe UI",Inter,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:inherit}
.spacer{flex:1}
.small{font-size:12px}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,"Cascadia Code",Consolas,monospace;font-size:12.5px}
.link{color:var(--accent);text-decoration:none}
.link:hover{text-decoration:underline}
.link.strong{font-weight:600}

/* app shell */
.app{display:flex;min-height:100vh}
.sidebar{width:236px;flex:0 0 236px;background:var(--bg2);border-right:1px solid var(--border);
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar .brand{display:flex;align-items:center;gap:10px;font-weight:700;padding:18px 18px 10px}
.sidebar .brand .logo{font-size:22px}
.nav{display:flex;flex-direction:column;padding:10px 8px;gap:2px}
.nav a{display:flex;align-items:center;gap:11px;padding:11px 14px;color:var(--muted);
  text-decoration:none;border-radius:10px;font-size:14px;font-weight:500}
.nav a .i{font-size:16px}
.nav a:hover{background:var(--accentSoft);color:var(--text)}
.nav a.active{background:var(--accent);color:#fff}
.sidebar .foot{margin-top:auto;padding:14px}
.badge{font-size:11px;padding:5px 10px;border-radius:999px;border:1px solid var(--border2);
  color:var(--muted);background:var(--panel);display:inline-flex;gap:6px;align-items:center}
.badge.cloud{color:#9fd0ff;border-color:#2a4d7a}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg2) 92%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:12px;padding:12px 22px}
.pgtitle{font-size:16px;margin:0}
.content{padding:22px;max-width:1240px;width:100%;margin:0 auto;padding-bottom:130px}

/* topbar computer search */
.topsearch{position:relative;width:min(320px,36vw)}
.topsearch .ico{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:13px;pointer-events:none}
.topsearch input{width:100%;padding:9px 12px 9px 33px;border-radius:10px;border:1px solid var(--border2);
  background:var(--panel);color:var(--text);font-size:13px}
.topsearch input::placeholder{color:var(--muted2)}
.topsearch input:focus{outline:none;border-color:var(--accent)}
.searchinfo{display:flex;align-items:center;gap:12px;background:var(--panel);border:1px solid var(--border);
  border-radius:var(--radius);padding:10px 14px;margin-bottom:16px;font-size:13px;color:var(--muted)}
.searchinfo .btn{margin-left:auto}

.iconbtn{border:1px solid var(--border2);background:var(--panel);color:var(--muted);
  width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:16px;display:grid;place-items:center}
.iconbtn:hover{color:var(--text);border-color:var(--accent)}
.btn{border:1px solid var(--border2);background:var(--panel);color:var(--text);padding:9px 14px;
  border-radius:10px;cursor:pointer;font-size:13px;font-weight:600;text-decoration:none;
  display:inline-flex;align-items:center;gap:7px}
.btn:hover{border-color:var(--accent)}
.btn.sm{padding:6px 11px;font-size:12px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.only-mobile{display:none}

.lead{color:var(--muted);margin:0 0 18px}

/* stat cards */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}
.stat{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 18px}
.stat .n{font-size:24px;font-weight:800;letter-spacing:-.02em}
.stat .l{font-size:12px;color:var(--muted);margin-top:3px;text-transform:uppercase;letter-spacing:.05em}
.stat .ico{float:right;font-size:20px;opacity:.5}

/* cards / grid */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;margin-bottom:16px}
.card-h{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.card-h h2{font-size:14px;margin:0}
.card-h .link{margin-left:auto;font-size:12.5px}

/* tables */
.tbl{width:100%;border-collapse:collapse}
.tbl thead th{text-align:left;font-size:10.5px;color:var(--muted);text-transform:uppercase;
  letter-spacing:.05em;padding:9px 12px;font-weight:700;white-space:nowrap}
.tbl tbody td{padding:10px 12px;border-top:1px solid var(--border);font-size:13px;vertical-align:middle}
.tbl tbody tr:hover{background:var(--accentSoft)}
.title{font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pill{display:inline-block;background:var(--chip);border:1px solid var(--border2);color:var(--muted);
  border-radius:999px;padding:2px 10px;font-size:11px;white-space:nowrap}
.iconlink{color:var(--muted);text-decoration:none;font-size:15px;padding:3px 5px}
.iconlink:hover{color:var(--accent)}
.rowbtns{display:flex;gap:6px;white-space:nowrap}

/* bars */
.bars{display:flex;flex-direction:column;gap:8px}
.bar-row{display:flex;align-items:center;gap:10px}
.bar-lbl{width:44px;font-size:11.5px;color:var(--muted)}
.bar-track{flex:1;height:10px;background:var(--panel2);border:1px solid var(--border);border-radius:6px;overflow:hidden}
.bar-fill{display:block;height:100%;background:var(--accent)}
.bar-val{width:24px;text-align:right;font-size:12px;color:var(--muted)}
.mini-row{display:flex;align-items:center;gap:10px;padding:8px 0;border-top:1px solid var(--border)}

/* computers grid */
.comp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}
.comp-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;display:flex;flex-direction:column}
.comp-head{display:flex;gap:12px;align-items:center;margin-bottom:12px}
.comp-ico{font-size:26px;width:46px;height:46px;display:grid;place-items:center;background:var(--accentSoft);border-radius:12px}
.comp-ico.big{font-size:32px;width:60px;height:60px}
.comp-name{font-weight:700;font-size:15px;text-decoration:none}
.comp-name:hover{color:var(--accent)}
.spec{display:grid;grid-template-columns:120px 1fr;gap:6px 12px;margin:4px 0 14px;font-size:12.5px}
.spec.wide{grid-template-columns:160px 1fr;font-size:13px}
.spec dt{color:var(--muted)}
.spec dd{margin:0;word-break:break-word}
.comp-stats{display:flex;gap:14px;border-top:1px solid var(--border);padding-top:12px;margin-top:auto}
.comp-stats .n{font-size:17px;font-weight:700;display:block}
.comp-stats .l{font-size:11px;color:var(--muted)}
.comp-foot{display:flex;align-items:center;gap:10px;margin-top:12px}
.comp-foot .btn{margin-left:auto}

/* detail */
.detail-head{display:flex;align-items:center;gap:16px;margin:6px 0 18px}
.dtitle{font-size:20px;margin:0}
.kpis{display:flex;gap:18px}
.kpis .n{font-size:18px;font-weight:700;display:block}
.kpis .l{font-size:11px;color:var(--muted)}
.bigplayer{width:100%;height:44px}

/* maintenance / cleanup */
.banner{padding:12px 16px;border-radius:12px;margin-bottom:16px;font-size:13.5px}
.banner.ok{background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.4);color:var(--good)}
.banner.bad{background:#3a1620;border:1px solid #7a2336;color:#ffb3c0}
.banner .warn{color:var(--warn)}
.cleanup-card .confirm{display:flex;gap:8px;align-items:flex-start;font-size:12.5px;color:var(--muted);margin:12px 0}
.cleanup-card .confirm input{margin-top:2px}
.btn.danger{background:#e0445b;border-color:#e0445b;color:#fff;width:100%;justify-content:center}
.btn.danger:hover{background:#c5394e}
.btn.danger[disabled]{opacity:.4;cursor:not-allowed}

/* pagination + sortable headers */
.pager{display:flex;align-items:center;gap:14px;justify-content:center;margin:16px 0 4px}
.pager .btn.disabled{opacity:.4;pointer-events:none}
.thlink{color:var(--muted);text-decoration:none;text-transform:uppercase;letter-spacing:.05em;font-size:10.5px;font-weight:700}
.thlink:hover{color:var(--text)}
.tablewrap.card{padding:0;overflow-x:auto}

/* empty */
.empty{text-align:center;color:var(--muted);padding:60px 0}
.empty.small{padding:28px 0}
.empty .big{font-size:40px;margin-bottom:10px}

/* toolbar (recordings) */
.toolbar{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;background:var(--panel);
  border:1px solid var(--border);border-radius:var(--radius);padding:14px;margin-bottom:20px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:10.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.field input,.field select{padding:9px 11px;border-radius:10px;border:1px solid var(--border2);
  background:var(--panel2);color:var(--text);font-size:13px;min-width:140px}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent)}
.field.search{flex:1;min-width:220px}
.field.search input{width:100%;min-width:0}
.field.search .box{position:relative}
.field.search .box span{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted)}
.field.search .box input{padding-left:32px}

/* groups */
.group{margin-bottom:18px;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.group>h2{font-size:13.5px;margin:0;padding:13px 16px;cursor:pointer;user-select:none;display:flex;
  align-items:center;gap:10px;background:var(--panel2);border-bottom:1px solid var(--border)}
.group>h2 .caret{transition:transform .15s;color:var(--muted)}
.group.collapsed>h2 .caret{transform:rotate(-90deg)}
.group.collapsed .tablewrap{display:none}
.group>h2 .count{margin-left:auto;font-size:11.5px;color:var(--muted2)}
.group>h2 .gdur{font-size:11.5px;color:var(--muted2)}
.tablewrap{overflow-x:auto}
thead th[data-k]{cursor:pointer}
thead th .arrow{color:var(--accent)}
tbody tr.playing{background:color-mix(in srgb,var(--accent) 16%,transparent)}
.play{width:34px;height:34px;border-radius:50%;border:0;background:var(--accent);color:#fff;cursor:pointer;font-size:13px}
.play:hover{background:var(--accent2)}
.missing{color:var(--warn);font-size:12px}

/* sticky player */
.player{position:fixed;left:236px;right:0;bottom:0;z-index:30;background:color-mix(in srgb,var(--bg2) 96%,transparent);
  backdrop-filter:blur(12px);border-top:1px solid var(--border);transform:translateY(110%);transition:transform .25s ease}
.player.show{transform:none}
.player .inner{max-width:1240px;margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:16px}
.player .np{min-width:0;flex:0 0 24%}
.player .np .t{font-weight:700;font-size:13.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.player .np .s{font-size:11.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.player audio{flex:1;min-width:120px;height:40px}
.player .pbtn{border:1px solid var(--border2);background:var(--panel);color:var(--text);width:38px;height:38px;
  border-radius:10px;cursor:pointer;font-size:14px;display:grid;place-items:center;text-decoration:none}
.player .pbtn:hover{border-color:var(--accent)}
.player select{padding:8px;border-radius:9px;border:1px solid var(--border2);background:var(--panel);color:var(--text);font-size:12px}

/* login */
.login-body{display:flex;min-height:100vh;align-items:center;justify-content:center;
  background:radial-gradient(1200px 600px at 50% -10%, #1d2a4d, #0b0f1a)}
.login-card{background:#121829;border:1px solid #243049;border-radius:16px;padding:36px 32px;width:340px;
  box-shadow:0 20px 60px rgba(0,0,0,.45);color:#e8eefc}
.login-card .logo{font-size:28px}
.login-card h1{font-size:20px;margin:0 0 4px}
.login-card .sub{margin:0 0 22px;color:#8b97b5;font-size:13px}
.login-card label{display:block;font-size:12px;color:#9fb0d6;margin:14px 0 6px}
.login-card input{width:100%;padding:11px 12px;border-radius:9px;border:1px solid #2c3a5a;background:#0d1322;color:#e8eefc;font-size:14px}
.login-card input:focus{outline:none;border-color:#4f7cff}
.login-card button{width:100%;margin-top:22px;padding:12px;border:0;border-radius:9px;background:#4f7cff;color:#fff;font-weight:600;font-size:14px;cursor:pointer}
.login-card button:hover{background:#3d68ef}
.login-card .err{background:#3a1620;border:1px solid #7a2336;color:#ffb3c0;padding:9px 12px;border-radius:8px;font-size:13px;margin-top:14px}

@media(max-width:860px){
  .sidebar{position:fixed;left:-240px;transition:left .2s;z-index:50;box-shadow:0 0 40px rgba(0,0,0,.4)}
  .sidebar.open{left:0}
  .only-mobile{display:grid}
  .grid2{grid-template-columns:1fr}
  .player{left:0}
  .title{max-width:160px}
  .pgtitle{display:none}
  .topsearch{width:auto;flex:1;min-width:0}
}

/* ---- day/night badges + curated metadata (name / floor / teachers) ---- */
.sub{font-size:11px;color:var(--muted2);margin-top:3px;max-width:240px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}
.dn{display:inline-flex;align-items:center;gap:4px;border-radius:999px;padding:1px 8px;
  font-size:10.5px;font-weight:600;margin-left:6px;white-space:nowrap}
.dn.day{background:rgba(255,193,71,.16);color:#ffcf6a;border:1px solid rgba(255,193,71,.35)}
.dn.night{background:rgba(99,120,220,.18);color:#9fb0ff;border:1px solid rgba(99,120,220,.4)}

.chip{display:inline-flex;align-items:center;gap:6px;background:var(--chip);
  border:1px solid var(--border2);border-radius:999px;padding:3px 6px 3px 11px;
  font-size:12px;color:var(--text)}
.chip.sm{padding:2px 9px;font-size:11px}
.chip .chip-x{display:inline;margin:0}
.chip .chip-x button{border:0;background:transparent;color:var(--muted);cursor:pointer;
  font-size:14px;line-height:1;padding:0 2px}
.chip .chip-x button:hover{color:var(--warn)}

.metaform .row2{display:flex;gap:12px;flex-wrap:wrap}
.metaform .row2>.field{flex:1;min-width:180px}
.metaform-actions{display:flex;align-items:center;gap:12px;margin-top:14px}
.teachers{margin-top:20px;border-top:1px solid var(--border);padding-top:16px}
.teachers .tlabel{display:block;font-size:10.5px;color:var(--muted);text-transform:uppercase;
  letter-spacing:.06em;font-weight:600;margin-bottom:10px}
.teachers .chips{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}
.addrow{display:flex;gap:8px;max-width:420px}
.addrow input{flex:1;padding:9px 11px;border-radius:10px;border:1px solid var(--border2);
  background:var(--panel2);color:var(--text);font-size:13px}
.addrow input:focus{outline:none;border-color:var(--accent)}
.saved-tag{margin-left:auto;color:var(--good);font-size:12.5px;font-weight:600}
.warnbox{background:#3a1620;border:1px solid #7a2336;color:#ffb3c0;padding:9px 12px;
  border-radius:9px;font-size:12.5px;margin-bottom:12px}