:root {
  --ink: #07131f;
  --ink-2: #0b1b2a;
  --panel: #102638;
  --line: #2d485d;
  --paper: #f5f1e8;
  --muted: #a9bfcb;
  --cyan: #43d7e7;
  --amber: #ffbd59;
  --green: #72e3ad;
  --red: #ff7a7a;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.4;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 14px 14px 40px; }
h1 { margin: 0 0 4px; font-size: 1.15rem; letter-spacing: -.01em; }
h1 span { color: var(--cyan); }
.sub { margin: 0 0 12px; color: var(--muted); font-size: .82rem; }
.stage { position: relative; background: #000; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
video { display: block; width: 100%; height: auto; background: #000; }
.overlay {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: rgba(7, 19, 31, .82); cursor: pointer; text-align: center; padding: 20px;
}
.overlay b { display: block; font-size: 1.3rem; margin-bottom: 6px; }
.overlay span { color: var(--muted); font-size: .85rem; }
.overlay[hidden] { display: none; }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
button {
  flex: 1 1 auto; min-width: 72px; padding: 12px 10px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); color: var(--paper); font: inherit; font-weight: 650; font-size: .95rem; cursor: pointer;
}
button.primary { background: var(--cyan); color: var(--ink); border-color: var(--cyan); }
button:active { transform: translateY(1px); }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.tile { padding: 10px 12px; background: var(--ink-2); border: 1px solid var(--line); border-radius: 10px; min-width: 0; }
.tile label { display: block; color: var(--muted); font-size: .66rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 3px; }
.tile b {
  display: block; font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-variant-numeric: tabular-nums;
  font-size: 1.35rem; font-weight: 600; letter-spacing: -.02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tile small { color: var(--muted); font-size: .7rem; }
.good { color: var(--green); }
.warn { color: var(--amber); }
.bad { color: var(--red); }
.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .68rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; background: rgba(114,227,173,.14); color: var(--green); }
.pill.paused { background: rgba(255,189,89,.16); color: var(--amber); }
.pill.off { background: rgba(255,122,122,.14); color: var(--red); }
.packet {
  margin-top: 10px; padding: 10px 12px; background: #0b2232; border: 1px solid #116c78; border-radius: 10px;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: .74rem; color: var(--muted); white-space: pre; overflow-x: auto;
}
.packet .v { color: var(--cyan); }
.packet .s { color: var(--green); }
.flash { animation: flash .6s ease-out; }
@keyframes flash { 0% { background: #16465a; } 100% { background: #0b2232; } }
.note { margin: 12px 0 0; color: var(--muted); font-size: .76rem; }
a { color: var(--cyan); }

/* diagnostic log */
.diag { margin-top: 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--ink-2); }
.diag summary { padding: 12px 14px; cursor: pointer; font-weight: 650; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.diag summary::-webkit-details-marker { display: none; }
.diag summary small { color: var(--muted); font-weight: 500; }
.diag .row { margin: 0; padding: 0 12px 10px; }
.diag textarea {
  display: block; width: 100%; height: 260px; margin: 0; padding: 10px 12px; border: 0; border-top: 1px solid var(--line);
  background: #07131f; color: var(--muted); font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: .68rem; line-height: 1.45;
  white-space: pre; overflow: auto; resize: vertical; -webkit-user-select: text; user-select: text;
}