:root{--bg:#0b1120;--panel:#111a2e;--panel2:#16213a;--line:#24324f;--text:#e5e9f2;--muted:#8b97b0;--accent:#3b82f6;--green:#22c55e;--red:#ef4444;--amber:#f59e0b;--gray:#64748b;--radius:10px;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-size:14px;line-height:1.45}
a{color:#93c5fd;text-decoration:none}a:hover{text-decoration:underline}
.hidden{display:none!important}
.muted{color:var(--muted)}.center{text-align:center;padding:60px}
header#topbar{display:flex;align-items:center;gap:24px;padding:0 20px;height:56px;background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.brand{font-weight:700;font-size:17px;color:var(--text);display:flex;align-items:center;gap:10px}
.logo{width:22px;height:22px;border-radius:50%;border:3px solid var(--green);position:relative;display:inline-block}
.logo:after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--red)}
nav{display:flex;gap:4px;flex:1}
nav a{color:var(--muted);padding:8px 12px;border-radius:8px}nav a:hover{background:var(--panel2);color:var(--text);text-decoration:none}
nav a.active{background:var(--panel2);color:var(--text)}
.who{display:flex;align-items:center;gap:12px}
main{max-width:1400px;margin:0 auto;padding:24px 20px 60px}
h1{font-size:22px;margin:0 0 16px}h2{font-size:17px;margin:24px 0 12px}h3{font-size:14px;margin:0 0 8px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.row{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.spacer{flex:1}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:16px}
.btn{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:8px 14px;font-size:14px;cursor:pointer;font-weight:500}
.btn:hover{filter:brightness(1.1)}.btn:disabled{opacity:.5;cursor:default}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn.danger{background:var(--red)}.btn.small{padding:5px 10px;font-size:13px}
.btn.green{background:#16a34a}
input,select,textarea{background:var(--bg);border:1px solid var(--line);color:var(--text);border-radius:8px;padding:8px 10px;font-size:14px;font-family:inherit;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}
input[type=checkbox]{width:auto}
label{display:block;margin:14px 0 6px;color:var(--muted);font-size:13px}
label.inline{display:flex;align-items:center;gap:8px;color:var(--text);margin:14px 0}
.hint{color:var(--muted);font-size:12px;margin-top:4px}
.form{max-width:760px}
.form .pair{display:grid;grid-template-columns:1fr 160px;gap:8px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.pill{display:inline-flex;align-items:center;gap:6px;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--panel2)}
.pill:before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}
.st-recording{color:var(--green)}.st-degraded,.st-starting,.st-stalled{color:var(--amber)}.st-down,.st-error{color:var(--red)}.st-stopped,.st-disabled,.st-idle,.st-skipped{color:var(--gray)}
.stream-card h2{margin:0;font-size:16px}
.kv{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:12px 0}
.kv div{background:var(--panel2);border-radius:8px;padding:8px}
.kv b{display:block;font-size:15px}.kv span{color:var(--muted);font-size:11px;text-transform:uppercase}
.timeline{position:relative;height:58px;user-select:none;cursor:pointer}
.timeline svg{width:100%;height:100%;display:block}
.timeline .tip{position:absolute;bottom:calc(100% + 4px);transform:translateX(-50%);background:#000d;padding:4px 8px;border-radius:6px;font-size:12px;white-space:nowrap;pointer-events:none;z-index:5;max-width:200px;overflow:hidden;text-overflow:ellipsis}
.timeline .tip-thumb{width:160px;min-height:20px;margin-top:4px;font-size:11px;color:var(--muted)}.timeline .tip-thumb img{width:160px;display:block;border-radius:4px}
.timeline.mini{height:22px;cursor:default}
.legend{display:flex;gap:16px;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:18px;height:4px;border-radius:2px;vertical-align:middle;margin-right:6px}
.player-wrap{background:#000;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/9;position:relative}
.player-wrap video{width:100%;height:100%;display:block}
.player-badge{position:absolute;top:10px;left:10px;background:#000a;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600}
.split{display:grid;grid-template-columns:minmax(0,2fr) minmax(320px,1fr);gap:16px}
@media(max-width:1000px){.split{grid-template-columns:1fr}.kv{grid-template-columns:repeat(2,1fr)}}
.code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:6px 8px;word-break:break-all}
.urls .code{display:flex;justify-content:space-between;gap:8px;align-items:center;margin:4px 0}
.events{max-height:280px;overflow:auto;font-family:ui-monospace,Menlo,monospace;font-size:12px}
.events div{padding:3px 0;border-bottom:1px dashed var(--line)}
.ev-warn{color:var(--amber)}.ev-error{color:var(--red)}
.toast{position:fixed;bottom:24px;right:24px;background:var(--panel2);border:1px solid var(--line);padding:12px 18px;border-radius:10px;box-shadow:0 10px 30px #0008;max-width:420px;z-index:100}
.toast.err{border-color:var(--red)}
.login{max-width:380px;margin:10vh auto}
.login .card{padding:28px}
.seg-btns{display:flex;gap:4px;flex-wrap:wrap}
.seg-btns .btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.bar{height:8px;background:var(--panel2);border-radius:4px;overflow:hidden}.bar i{display:block;height:100%;background:var(--accent)}
.err-text{color:var(--red);font-size:13px;margin-top:8px}
.btn[aria-disabled=true]{opacity:.45;pointer-events:none}
#tracks th,#tracks td{padding:8px 6px}

.chart{width:100%;height:auto;display:block}
.chart .ax{fill:#8b97b0;font-size:11px}
.chart-wrap{position:relative}
.chart-empty{padding:30px 0;text-align:center}
.ctip{position:absolute;top:8px;background:#0b1120f0;border:1px solid var(--line);border-radius:8px;padding:6px 10px;font-size:12px;pointer-events:none;min-width:170px;z-index:5}
.ctip i,.legend i{display:inline-block;width:10px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}
.ctable{max-height:260px;overflow:auto;margin-top:8px;font-size:12px}
.tl-sel{position:absolute;top:0;bottom:0;background:#3b82f633;border:1px solid #3b82f6;pointer-events:none}
.tl-sel.clip{background:#f59e0b33;border-color:#f59e0b}
#charts{grid-template-columns:repeat(auto-fill,minmax(440px,1fr));margin-top:16px}
.grid{align-items:start}
.urls .code button{flex-shrink:0;white-space:nowrap}

/* ---- v0.4.0 ---- */
.navtoggle{display:none}
@media(max-width:900px){
  .navtoggle{display:inline-block}
  header#topbar{flex-wrap:wrap;height:auto;min-height:56px;gap:10px;padding:8px 12px}
  header#topbar nav{display:none;order:3;width:100%;flex-direction:column}
  body.nav-open header#topbar nav{display:flex}
  .who{margin-left:auto}
  main{padding:16px 12px 60px}
  .grid,#charts{grid-template-columns:1fr!important}
  .kv{grid-template-columns:repeat(2,1fr)!important}
  .help-layout{grid-template-columns:1fr!important}
  .help-toc{position:static!important;max-height:none!important}
  .wall-16{grid-template-columns:repeat(2,1fr)!important}
}
.sumbar{grid-template-columns:repeat(6,1fr);margin:0}
.offline{position:sticky;top:56px;z-index:9;background:#7f1d1d;color:#fff;text-align:center;padding:6px;font-size:13px}
.empty{text-align:center;padding:40px}
.tour-banner{margin-bottom:12px;border-color:#3b82f6}
.tour-banner.pulse{animation:pulse 1.2s ease-in-out 3}
@keyframes pulse{50%{box-shadow:0 0 0 6px #3b82f655}}
.help-q{display:inline-block;width:18px;height:18px;line-height:18px;text-align:center;border-radius:50%;background:var(--panel2);border:1px solid var(--line);font-size:11px;margin-left:4px;color:var(--muted)}
.help-q:hover{color:var(--text);text-decoration:none}
.help-layout{display:grid;grid-template-columns:240px 1fr;gap:16px;align-items:start}
.help-toc{position:sticky;top:72px;display:flex;flex-direction:column;gap:2px;max-height:calc(100vh - 100px);overflow:auto}
.help-toc input{margin-bottom:8px}
.help-toc a{padding:6px 8px;border-radius:6px;color:var(--muted)}.help-toc a.active,.help-toc a:hover{background:var(--panel2);color:var(--text);text-decoration:none}
.help-toc a.dim{opacity:.35}
.manual{margin-bottom:14px;scroll-margin-top:72px}.manual h2{margin-top:0}.manual li{margin:4px 0}.manual dt{font-weight:600;margin-top:10px}.manual dd{margin:4px 0 0 0;color:var(--muted)}
.manual.flash{outline:2px solid var(--accent)}
.steps li{margin:8px 0}
.glossary{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:4px 24px;margin-top:12px}
.glossary dt{font-weight:600;margin-top:10px}.glossary dd{margin:2px 0 0;color:var(--muted)}
.h3d{position:relative;border-radius:8px;overflow:hidden;background:radial-gradient(ellipse at center,#16213a,#0b1120)}
.h3d canvas{display:block;cursor:grab;touch-action:none}.h3d canvas:active{cursor:grabbing}
.h3d-labels{position:absolute;inset:0;pointer-events:none}
.h3d-label{position:absolute;left:0;top:0;background:#0b1120cc;border:1px solid var(--line);padding:2px 8px;border-radius:6px;font-size:12px;white-space:nowrap}
.h3d-label.h3d-red{border-color:#ef4444;color:#fca5a5}.h3d-label.h3d-amber{border-color:#f59e0b;color:#fcd34d}.h3d-label.h3d-violet{border-color:#9085e9;color:#c4b5fd}.h3d-label.h3d-note{color:var(--muted)}
.h3d-ui{position:absolute;left:10px;bottom:10px;display:flex;gap:6px;flex-wrap:wrap;right:10px}
.h3d-ui .btn{background:#0b1120cc}.h3d-ui .btn.active{background:var(--accent)}
.h3d-sep{width:12px}
.kbd-hint{position:absolute;top:10px;right:10px;background:#000a;border:0;color:#fff;border-radius:6px;padding:4px 8px;cursor:pointer;font-size:12px}
.kbd-overlay{position:fixed;inset:0;background:#000a;z-index:50;display:flex;align-items:center;justify-content:center}
.kbd-overlay .card{min-width:360px}
kbd{background:var(--panel2);border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:1px 6px;font-family:ui-monospace,monospace;font-size:12px}
#tour{position:fixed;inset:0;z-index:60;pointer-events:none}
.tour-hl{position:fixed;border:2px solid var(--accent);border-radius:10px;box-shadow:0 0 0 9999px #000a;transition:all .25s}
.tour-pop{position:fixed;width:380px;max-width:calc(100vw - 20px);pointer-events:auto;box-shadow:0 10px 40px #000c}
.wall-head{flex-wrap:wrap}
.wall{display:grid;gap:8px}
.wall-4{grid-template-columns:repeat(2,1fr)}.wall-9{grid-template-columns:repeat(3,1fr)}.wall-16{grid-template-columns:repeat(4,1fr)}
.wall:fullscreen{background:#000;padding:8px;align-content:center}
.tile{position:relative;background:#000;border-radius:8px;overflow:hidden;aspect-ratio:16/9;cursor:pointer;border:2px solid transparent}
.tile video{width:100%;height:100%;object-fit:contain;display:block}
.tile-bad{border-color:#ef4444}
.tile-empty{display:flex;align-items:center;justify-content:center;cursor:default;background:var(--panel)}
.tile-top,.tile-bot{position:absolute;left:0;right:0;display:flex;gap:8px;align-items:center;padding:6px 8px;font-size:12px;background:linear-gradient(#000c,#0000)}
.tile-top{top:0}.tile-bot{bottom:0;background:linear-gradient(#0000,#000c)}
.tile-top b{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tile-snd{margin-left:auto;background:#0008;border:0;color:#fff;border-radius:4px;cursor:pointer}
.tile-frozen{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#b91c1cdd;color:#fff;font-weight:700;padding:4px 12px;border-radius:6px;letter-spacing:.1em}
.adv-fail{border-color:#ef4444}.adv-warn{border-color:#f59e0b}
.adv-fix{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-top:8px}.adv-fix button{flex-shrink:0}
a.btn{display:inline-block}a.btn:hover{text-decoration:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* v0.5: programmes, schedule editor */
.prog-list{display:flex;flex-direction:column;gap:8px;max-height:520px;overflow-y:auto}
.prog{display:flex;gap:10px;padding:8px;border-radius:8px;background:var(--panel2)}
.prog img,.prog .prog-ph{width:96px;height:54px;object-fit:cover;border-radius:4px;flex-shrink:0;background:#0b1120}
.prog-body{flex:1;min-width:0}.prog-desc{font-size:12px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.prog-live{outline:1px solid #22c55e66}.prog-future{opacity:.6}
.sched-row .day{margin:0 4px 0 0;font-size:12px}.sched-row .day input{margin-right:2px}
.st-scheduled-off{color:var(--gray)}
.tile-off{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0b1120cc;color:var(--gray);font-weight:600;letter-spacing:.08em;pointer-events:none}
pre.stack{max-height:260px;overflow:auto;font-size:11px;background:#0b1120;padding:8px;border-radius:6px;white-space:pre-wrap}
.probe{margin-top:8px;padding:10px 12px}.probe-ok{border-left:3px solid #22c55e}.probe-warn{border-left:3px solid #f59e0b}.probe-bad{border-left:3px solid #ef4444}
.problem{margin:10px 0;padding:10px 14px;border-left:4px solid var(--amber)}.problem.bad{border-left-color:var(--red)}.problem.info{border-left-color:#3b82f6}
.problem-line{font-size:12px;margin:6px 0 2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.problem-line.bad{color:var(--red)}.problem-line.warn{color:var(--amber)}
.more{position:relative;display:inline-block}
.morebtn{background:none;border:0;color:var(--muted);padding:8px 12px;border-radius:8px;font:inherit;cursor:pointer}.morebtn:hover,.morebtn.active{background:var(--panel2);color:var(--text)}
.moremenu{display:none;position:absolute;left:0;top:100%;margin-top:4px;background:var(--panel);border:1px solid var(--line);border-radius:10px;min-width:190px;padding:6px;z-index:60;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.more.open .moremenu{display:flex;flex-direction:column}.moremenu a{display:block;white-space:nowrap}
@media(max-width:900px){.morebtn{display:none}.more{display:contents}.moremenu{display:contents}}
details.adv{margin:14px 0 4px;border:1px solid var(--line);border-radius:10px;padding:0 14px}
details.adv>summary{cursor:pointer;padding:12px 0;font-weight:600;color:var(--text);list-style:none}details.adv>summary::-webkit-details-marker{display:none}
details.adv>summary:before{content:"▸ ";color:var(--muted)}details.adv[open]>summary:before{content:"▾ "}
details.adv>summary .muted{font-weight:400;font-size:12px;margin-left:6px}
details.adv.card{padding:0 16px}#sdetails .card{border:0;background:none;padding:8px 0;box-shadow:none}
.player-status{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(11,17,32,.85);color:var(--text);padding:10px 16px;border-radius:8px;font-size:14px;pointer-events:none;max-width:80%;text-align:center}
.tile-reconn{position:absolute;left:8px;right:8px;top:42%;text-align:center;background:rgba(11,17,32,.8);padding:4px 6px;border-radius:6px;font-size:12px;pointer-events:none}