:root {
  --page: #15171a;
  --bar: #1b1d21;
  --line: #26292e;
  --chip: #22252a;
  --text: #ddd;
  --muted: #888;
  --accent: #f5a623;
  --led: #ffa21a;
  --led-glow: #ff8c0099;
  --led-off: #1a1006;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  display: flex;
  flex-direction: column;
}

/* Toolbar */
.top {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  padding: 12px 16px; background: var(--bar); border-bottom: 1px solid var(--line);
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  white-space: nowrap; background: var(--chip); border: 1px solid #333; border-radius: 999px;
  padding: 5px 6px 5px 12px; font-size: 14px; display: flex; align-items: center; gap: 4px;
}
.chip button {
  background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 14px;
  padding: 0 6px; border-radius: 999px;
}
.chip button:hover { color: #fff; background: #333; }
.chip select {
  background: var(--page); color: var(--text); border: 1px solid #444; border-radius: 6px;
  font: 12px Inter, system-ui, sans-serif; padding: 2px 4px; margin-left: 4px; cursor: pointer;
}
.add { display: flex; gap: 6px; }
.add input {
  width: 210px; max-width: 60vw; padding: 8px 12px; border-radius: 8px; border: 1px solid #333;
  background: var(--chip); color: #fff; font-size: 14px;
}
.add button {
  white-space: nowrap; padding: 8px 14px; border-radius: 8px; border: 0;
  background: var(--accent); color: #111; font-weight: 600; cursor: pointer;
}
.add input:disabled, .add button:disabled { opacity: .4; cursor: not-allowed; }
.msg { font-size: 13px; color: #ff8a65; }
.msg:empty { display: none; }
.meta { margin-left: auto; font-size: 12px; color: var(--muted); white-space: nowrap; display: flex; align-items: center; gap: 6px; }
.meta .live { color: #7bd88f; }
.meta .sample { color: var(--accent); }
.fs { background: none; border: 1px solid #333; color: var(--muted); border-radius: 6px; cursor: pointer; font-size: 14px; padding: 2px 7px; }
.fs:hover { color: #fff; }

/* Layout: 1 = full, 2 = stacked, 3-4 = 2x2 */
.grid { flex: 1; display: grid; gap: 12px; padding: 12px; min-height: 0; }
.n1 { grid-template: 1fr / 1fr; }
.n2 { grid-template: 1fr 1fr / 1fr; }
.n4 { grid-template: 1fr 1fr / 1fr 1fr; }
.cell { container-type: size; display: flex; align-items: center; min-width: 0; min-height: 0; }

/* The board */
.case {
  flex: 1; max-height: 100%; display: flex; overflow: hidden; position: relative;
  background: #050505; border: 6px solid #1c1c1c; border-radius: 4px;
  padding: 1.6cqw 2.4cqw; box-shadow: 0 10px 40px #000a;
}
.name { position: absolute; top: 4px; right: 10px; font-size: 11px; color: #444; }
.board {
  flex: 1; min-width: 0; overflow: hidden;
  font-family: Doto, monospace; font-weight: 900; font-size: min(3.9cqw, 17cqh); line-height: 1.15;
  color: var(--led); text-shadow: 0 0 .12em var(--led-glow);
  background: radial-gradient(var(--led-off) 30%, transparent 31%) 0 0 / .15em .15em;
}
.row { padding: 0 .08em; display: flex; justify-content: space-between; gap: .6em; white-space: nowrap; overflow: hidden; }
.row .l { overflow: hidden; white-space: pre; }
.row .r { flex: none; max-width: 45%; overflow: hidden; }
.hide { display: none !important; }
.row, .call { min-height: 1.15em; }   /* empty lines keep their height */
.call { padding: 0 .08em; overflow: hidden; white-space: nowrap; }
.call span { display: inline-block; will-change: transform; }
.clock { text-align: center; font-size: 1.4em; line-height: 1.1; font-variant-numeric: tabular-nums; }

.empty {
  flex: 1; height: 100%; border: 2px dashed #333; border-radius: 8px; color: #666; font-size: 18px;
  display: flex; align-items: center; justify-content: center; text-align: center; padding: 16px;
}

/* Full screen: hide the toolbar */
body.is-fs .top { display: none; }

@media (max-width: 700px) {
  .chips { width: 100%; }
  .chip { max-width: 100%; white-space: normal; flex-wrap: wrap; }
  .meta { white-space: normal; flex-wrap: wrap; }
  .n4 { grid-template: repeat(4, 1fr) / 1fr; }
  .meta { margin-left: 0; }
}

/* Small boards: the corner label would cover the LED text */
@container (max-width: 600px) {
  .name { display: none; }
}