/* Video Playground Relay — operator UI. Green-on-black terminal, Tron / Cyberpunk 2077 accents. No build step. */
:root {
  --bg: #04070a; --panel: #070d0a; --panel-2: #0a130d; --grid: #0f2a15; --line: #1f4d28;
  --g: #39ff14; --g-dim: #5d8f66; --g-soft: #9df59a; --cyan: #5ef2ff; --magenta: #ff2bd6; --amber: #ffb000;
  --red: #ff3b3b; --text: #cfeecf; --muted: #6f8f74; --shadow: 0 0 18px rgba(57, 255, 20, .18);
  --font: "JetBrains Mono", "IBM Plex Mono", ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 13px/1.45 var(--font); }
body {
  background-image: linear-gradient(rgba(57,255,20,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(57,255,20,.035) 1px, transparent 1px);
  background-size: 28px 28px;
}
body::after { /* faint scanlines */
  content: ""; pointer-events: none; position: fixed; inset: 0; z-index: 50;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,.12) 0 1px, transparent 1px 3px); mix-blend-mode: multiply;
}
a { color: var(--cyan); }
button, select, input, textarea { font: inherit; color: var(--g-soft); background: var(--panel-2); border: 1px solid var(--line); padding: 6px 10px; border-radius: 0; }
button { cursor: pointer; text-transform: uppercase; letter-spacing: .08em; font-size: 11px; color: var(--g); border-color: var(--g); background: transparent; }
button:hover { background: var(--g); color: #000; box-shadow: var(--shadow); }
button.danger { color: var(--magenta); border-color: var(--magenta); }
button.danger:hover { background: var(--magenta); color: #000; }
button.ghost { color: var(--g-dim); border-color: var(--line); }
button:disabled { opacity: .35; cursor: not-allowed; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--g); box-shadow: 0 0 0 1px var(--g) inset; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
h1 { font-size: 15px; color: var(--g); text-shadow: 0 0 10px rgba(57,255,20,.6); }
h2 { font-size: 11px; color: var(--g-dim); }
.hidden { display: none !important; }

/* top bar */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 18px; padding: 10px 18px; background: rgba(4,7,10,.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(4px); }
.topbar .brand { display: flex; flex-direction: column; }
.topbar .brand small { color: var(--muted); letter-spacing: .2em; font-size: 10px; }
.topbar .spacer { flex: 1; }
.led { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--red); box-shadow: 0 0 8px var(--red); vertical-align: middle; margin-right: 6px; }
.led.on { background: var(--g); box-shadow: 0 0 8px var(--g); }
.led.warn { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.badge { border: 1px solid var(--line); padding: 2px 8px; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--g-dim); }
.badge.demo { color: var(--amber); border-color: var(--amber); animation: pulse 2s infinite; }
.badge.mode { color: var(--cyan); border-color: var(--cyan); }
@keyframes pulse { 0%, 100% { opacity: 1 } 50% { opacity: .45 } }
.clock { color: var(--cyan); font-size: 14px; letter-spacing: .1em; }

/* layout */
.grid { display: grid; grid-template-columns: minmax(380px, 440px) 1fr minmax(320px, 380px); gap: 14px; padding: 14px 18px 40px; }
@media (max-width: 1400px) { .grid { grid-template-columns: 360px 1fr; } .col-right { grid-column: 1 / -1; } }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
.col { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.panel { background: var(--panel); border: 1px solid var(--line); position: relative; padding: 12px 14px; box-shadow: inset 0 0 40px rgba(57,255,20,.03); clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px)); }
.panel::before { content: ""; position: absolute; left: 0; top: 0; width: 44px; height: 2px; background: var(--g); box-shadow: var(--shadow); }
.panel h2 { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.panel h2 .count { color: var(--cyan); }
.panel h2 .actions { margin-left: auto; display: flex; gap: 6px; }
.panel h2 .actions button { padding: 3px 8px; font-size: 10px; }

/* cards */
.card { border: 1px solid var(--grid); background: var(--panel-2); padding: 10px; margin-bottom: 10px; position: relative; }
.card.selected { border-color: var(--cyan); }
.card .title { display: flex; align-items: center; gap: 8px; color: var(--g); font-weight: 600; letter-spacing: .06em; }
.card .title .id { color: var(--muted); font-weight: 400; font-size: 11px; }
.card .title .state { margin-left: auto; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; padding: 1px 6px; border: 1px solid var(--line); }
.state.connected, .state.live, .state.receiving, .state.sending, .state.running { color: var(--g); border-color: var(--g) !important; }
.state.disconnected, .state.idle, .state.stopped, .state.planned, .state.listening { color: var(--muted); }
.state.reconnecting, .state.dark, .state.starting, .state.connecting, .state.unhealthy { color: var(--amber); border-color: var(--amber) !important; }
.state.killed { color: var(--magenta); border-color: var(--magenta) !important; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; font-size: 12px; margin-top: 6px; }
.kv .k { color: var(--muted); text-transform: uppercase; font-size: 10px; letter-spacing: .1em; align-self: center; }
.kv .v { color: var(--g-soft); overflow-wrap: anywhere; }
.kv .v.cyan { color: var(--cyan); }
.kv .v.warn { color: var(--amber); }
.kv .v.bad { color: var(--magenta); }
.meter { height: 6px; background: #0b1a0e; border: 1px solid var(--grid); margin-top: 3px; position: relative; }
.meter > i { display: block; height: 100%; background: var(--g); box-shadow: 0 0 6px var(--g); transition: width .6s linear; }
.meter.warn > i { background: var(--amber); box-shadow: 0 0 6px var(--amber); }
.meter.bad > i { background: var(--magenta); box-shadow: 0 0 6px var(--magenta); }
.links { margin-top: 8px; border-top: 1px dashed var(--grid); padding-top: 6px; }
.link { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr) auto; gap: 4px 10px; align-items: center; font-size: 11px; padding: 5px 0; border-bottom: 1px solid rgba(31,77,40,.35); }
.link.off { opacity: .45; }
.link .name { color: var(--g-soft); white-space: nowrap; }
.link .name small { display: block; color: var(--muted); font-size: 10px; }
.link .type { display: block; color: var(--cyan); text-transform: uppercase; font-size: 10px; letter-spacing: .08em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.link .num { white-space: nowrap; min-width: 0; }
.link .num small { display: block; color: var(--muted); font-size: 10px; white-space: normal; }
.link .muted { color: var(--magenta); }
.link .ctl { display: flex; align-items: center; gap: 6px; }
.link input[type=number] { width: 48px; padding: 1px 4px; font-size: 11px; }
.link .toggle { width: 14px; height: 14px; accent-color: var(--g); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.row select, .row input { padding: 3px 6px; font-size: 11px; }
.small { font-size: 11px; color: var(--muted); }

/* previews */
.preview { position: relative; background: #000; aspect-ratio: 16 / 9; max-height: 240px; border: 1px solid var(--grid); margin: 8px 0 4px; overflow: hidden; }
/* two cards per row when there are many inputs/outputs (rendition bank); single column on narrow screens */
.cards.grid2 { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; }
.cards.grid2 .card { margin-bottom: 0; min-width: 0; }
.cards.grid2 .preview { max-height: 200px; }
.preview video { width: 100%; height: 100%; object-fit: contain; display: block; }
.preview .nosig { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); letter-spacing: .3em; font-size: 11px; background: repeating-linear-gradient(45deg, #050a06 0 8px, #070d0a 8px 16px); }
.preview .mute { position: absolute; right: 6px; bottom: 6px; font-size: 10px; padding: 2px 6px; }
.preview .label { position: absolute; left: 6px; top: 6px; font-size: 10px; letter-spacing: .12em; color: var(--g); text-shadow: 0 0 6px #000; }

/* matrix */
.matrix { width: 100%; border-collapse: collapse; font-size: 11px; }
.matrix th, .matrix td { border: 1px solid var(--grid); padding: 6px 8px; text-align: center; }
.matrix th { color: var(--g-dim); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; font-size: 10px; }
.matrix th.rowh { text-align: left; color: var(--g-soft); }
.matrix td.cell { cursor: pointer; color: var(--muted); font-size: 16px; line-height: 1; transition: background .2s; }
.matrix td.cell:hover { background: rgba(57,255,20,.08); color: var(--g); }
.matrix td.cell.on { color: var(--g); text-shadow: 0 0 8px var(--g); }
.matrix td.cell.backup { color: var(--cyan); }
.matrix td.cell.killed { color: var(--magenta); cursor: not-allowed; }
.matrix .outhead .k { display: block; color: var(--cyan); font-size: 9px; }

/* charts */
.chart-wrap { margin-bottom: 10px; }
.chart-wrap .legend { display: flex; gap: 12px; flex-wrap: wrap; font-size: 10px; color: var(--muted); margin-bottom: 4px; }
.chart-wrap .legend i { display: inline-block; width: 10px; height: 2px; vertical-align: middle; margin-right: 4px; }
.u-legend { display: none; }
.uplot, .uplot * { color: var(--muted) !important; font-family: var(--font) !important; }
.u-over { box-shadow: inset 0 0 0 1px var(--grid); }

/* advice */
.advice { border-left: 3px solid var(--amber); background: rgba(255,176,0,.05); padding: 8px 10px; margin-bottom: 8px; font-size: 12px; }
.advice.critical { border-color: var(--magenta); background: rgba(255,43,214,.06); }
.advice.info { border-color: var(--cyan); background: rgba(94,242,255,.05); }
.advice .rule { font-size: 10px; letter-spacing: .15em; color: var(--amber); }
.advice.critical .rule { color: var(--magenta); }
.advice .finding { color: var(--text); }
.advice .action { color: var(--g); margin-top: 3px; }
.advice .action::before { content: "▶ "; }

/* event log */
.log { background: #020403; border: 1px solid var(--grid); height: 260px; overflow-y: auto; padding: 8px 10px; font-size: 11px; line-height: 1.5; }
.log .line { white-space: pre-wrap; word-break: break-word; }
.log .ts { color: var(--muted); }
.log .lvl { display: inline-block; width: 46px; letter-spacing: .1em; }
.log .info .lvl { color: var(--g-dim); } .log .warn .lvl { color: var(--amber); } .log .error .lvl { color: var(--red); } .log .audit .lvl { color: var(--cyan); }
.log .what { color: var(--g-soft); } .log .target { color: var(--cyan); }
.log .line.warn .what { color: var(--amber); } .log .line.error .what { color: var(--red); }
.log::-webkit-scrollbar { width: 8px; } .log::-webkit-scrollbar-thumb { background: var(--line); }

/* dialogs */
dialog { background: var(--panel); color: var(--text); border: 1px solid var(--g); padding: 18px 20px; min-width: 420px; max-width: 720px; box-shadow: 0 0 40px rgba(57,255,20,.25); }
dialog::backdrop { background: rgba(0,0,0,.75); backdrop-filter: blur(2px); }
dialog h3 { color: var(--g); font-size: 13px; margin-bottom: 12px; }
dialog h3.danger { color: var(--magenta); text-shadow: 0 0 10px rgba(255,43,214,.6); }
dialog .form { display: grid; grid-template-columns: 130px 1fr; gap: 8px 10px; align-items: center; }
dialog .form label { color: var(--muted); text-transform: uppercase; font-size: 10px; letter-spacing: .1em; }
dialog .buttons { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }
dialog pre { background: #020403; border: 1px solid var(--grid); padding: 8px; font-size: 11px; max-height: 260px; overflow: auto; white-space: pre-wrap; }
dialog .qr { display: flex; gap: 18px; align-items: flex-start; }
dialog .qr img { border: 6px solid #fff; background: #fff; image-rendering: pixelated; }
.once { border: 1px dashed var(--amber); color: var(--amber); padding: 8px; font-size: 12px; word-break: break-all; }
.warn-text { color: var(--amber); } .bad-text { color: var(--magenta); } .ok-text { color: var(--g); } .cyan-text { color: var(--cyan); }

/* login */
#login { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; background: rgba(4,7,10,.96); }
#login .box { width: 400px; border: 1px solid var(--g); padding: 26px 28px; background: var(--panel); box-shadow: 0 0 60px rgba(57,255,20,.2); }
#login .box h1 { margin-bottom: 4px; }
#login .box .form { display: grid; gap: 8px; margin-top: 16px; }
#login .err { color: var(--magenta); font-size: 12px; min-height: 16px; }
.typing::after { content: "▌"; animation: pulse 1s infinite; color: var(--g); }
.tbl { width: 100%; border-collapse: collapse; font-size: 11px; }
.tbl th, .tbl td { border-bottom: 1px solid var(--grid); padding: 4px 6px; text-align: left; }
.tbl th { color: var(--muted); text-transform: uppercase; font-size: 10px; letter-spacing: .08em; }
.set-node { display: grid; grid-template-columns: 1fr auto auto auto auto; gap: 8px; font-size: 11px; padding: 3px 0; border-bottom: 1px solid rgba(31,77,40,.35); align-items: center; }
.set-node .active { color: var(--g); }