:root {
  --panel: #000;
  --grille-hole: #262626;
  --grille-ring: #151515;
  --plate-ink: #f3f2ec;
  --plate-soft: #8d8b82;
  --paper: #f9f9f6;
  --ink: #1c1c1a;
  --ink-soft: #5d5c55;
  --rule: #d8d7cc;
  --field: #ffffff;
  --start: #d42a1f;
  --start-ink: #ffffff;
  --ok: #2c6e3f;
  --focus: #1f5fd1;
  --measure: 36rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #18181a;
    --ink: #ecebe4;
    --ink-soft: #a3a198;
    --rule: #34342f;
    --field: #0f0f10;
    --start: #e0382c;
    --ok: #6cc486;
    --focus: #7aa7ff;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Archivo", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.55;
}

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--start); }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

h2 {
  margin: 0 0 0.6rem;
  font-size: 1.35rem;
  font-weight: 800;
  font-stretch: 72%;
  line-height: 1.1;
}

/* The backbox: the speaker panel around the display. */

.backbox {
  background: var(--panel);
  color: var(--plate-ink);
  padding: 1.25rem 1rem 1.5rem;
}

.plate {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  max-width: 76rem;
  margin: 0 auto 1.25rem;
}

.wordmark {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  font-stretch: 62%;
  line-height: 1;
  letter-spacing: 0.01em;
}

.source { color: var(--plate-soft); font-size: 0.95rem; }
.source:hover { color: var(--plate-ink); }

.panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 60rem) minmax(0, 1fr);
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  max-width: 76rem;
  margin: 0 auto;
}

.grille {
  justify-self: center;
  width: min(100%, 9.5rem);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--grille-hole) 1.5px, transparent 2px) center / 7px 7px,
    var(--panel);
  box-shadow: 0 0 0 6px var(--grille-ring), inset 0 0 18px #000;
}

.bezel {
  position: relative;
  padding: clamp(0.5rem, 1.4vw, 1rem);
  background: #050505;
  border-radius: 6px;
  box-shadow: inset 0 0 0 1px #1d1d1d, inset 0 6px 22px #000, 0 0 0 1px #0b0b0b;
}

#dmd {
  display: block;
  width: 100%;
  margin: 0 auto;
  aspect-ratio: 80 / 32;
  background: #000;
  cursor: pointer;
  touch-action: manipulation;
}

.fault {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 1.5rem;
  color: #ff6a3d;
  text-align: center;
  font-weight: 600;
}

.fault[hidden] { display: none; }

.hint {
  max-width: 60rem;
  margin: 1rem auto 0;
  color: var(--plate-soft);
  font-size: 0.9rem;
  text-align: center;
}

/* The card: printed like an apron instruction card. */

.card {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2.5rem 4rem;
  max-width: 76rem;
  margin: 0 auto;
  padding: 3rem 1rem 2rem;
}

.intro p { max-width: var(--measure); }

.lede {
  margin-top: 0;
  font-size: clamp(1.2rem, 1rem + 1vw, 1.4rem);
  line-height: 1.35;
  font-weight: 600;
  font-stretch: 88%;
}

.intro h2 { margin-top: 2rem; }

pre {
  margin: 0;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  background: var(--field);
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 0.9rem;
  line-height: 1.5;
}

code, textarea { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }

.controls { display: grid; gap: 2rem; align-content: start; }

.group { padding-top: 1rem; border-top: 3px solid var(--ink); }

button { font: inherit; color: inherit; }

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.chips button, .segmented button, .swatches button {
  padding: 0.35rem 0.75rem;
  background: var(--field);
  border: 1px solid var(--rule);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.95rem;
}

.chips button:hover, .segmented button:hover, .swatches button:hover { border-color: var(--ink); }

.chips button[aria-current="true"], .segmented button[aria-checked="true"], .swatches button[aria-checked="true"] {
  background: var(--start);
  border-color: var(--start);
  color: var(--start-ink);
}

.check { display: inline-flex; gap: 0.5rem; align-items: center; margin-top: 0.75rem; cursor: pointer; }
input[type="checkbox"] { width: 1.05rem; height: 1.05rem; accent-color: var(--start); }

.segmented { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.tune { margin-top: 0.9rem; }
.tune summary { cursor: pointer; color: var(--ink-soft); }
.tune summary:hover { color: var(--ink); }

.sliders {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr) 3.2rem;
  gap: 0.35rem 0.9rem;
  align-items: center;
  margin-top: 0.75rem;
  font-size: 0.95rem;
}

.sliders output, #time-out { font-variant-numeric: tabular-nums; text-align: right; color: var(--ink-soft); }

input[type="range"] { width: 100%; accent-color: var(--start); }

.swatches { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.swatches button { display: inline-flex; align-items: center; gap: 0.45rem; }
.swatches i {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 0 1px rgb(0 0 0 / 0.25), 0 0 6px var(--glow, transparent);
}

.time { display: grid; grid-template-columns: minmax(0, 1fr) 5.5rem; gap: 0.9rem; align-items: center; }
#time-out { font-size: 1.1rem; font-weight: 700; color: var(--ink); }

.note { margin: 0.6rem 0 0; color: var(--ink-soft); font-size: 0.95rem; }

.link {
  padding: 0;
  background: none;
  border: 0;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  cursor: pointer;
}
.link:hover { color: var(--start); }

.data { grid-column: 1 / -1; padding-top: 1rem; border-top: 3px solid var(--ink); }
.data > p { max-width: var(--measure); margin-top: 0; }

.editor { display: grid; gap: 0.6rem; }

.feed-bar { display: flex; flex-wrap: wrap; gap: 0.6rem 0.9rem; align-items: center; }

select {
  font: inherit;
  padding: 0.3rem 0.5rem;
  background: var(--field);
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.status { font-size: 0.95rem; color: var(--ink-soft); }
.status.ok { color: var(--ok); }
.status.bad { color: var(--start); }

textarea {
  width: 100%;
  min-height: 16rem;
  padding: 0.8rem 0.9rem;
  resize: vertical;
  background: var(--field);
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 0.875rem;
  line-height: 1.5;
  tab-size: 2;
}

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.start {
  padding: 0.55rem 1.1rem;
  background: var(--start);
  color: var(--start-ink);
  border: 0;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: inset 0 -3px 0 rgb(0 0 0 / 0.22);
}
.start:active { transform: translateY(1px); box-shadow: inset 0 -1px 0 rgb(0 0 0 / 0.22); }

.plain {
  padding: 0.55rem 1.1rem;
  background: none;
  border: 1px solid var(--rule);
  border-radius: 999px;
  cursor: pointer;
}
.plain:hover { border-color: var(--ink); }

.foot {
  max-width: 76rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

@media (max-width: 960px) {
  .panel { grid-template-columns: minmax(0, 1fr); }
  .grille { display: none; }
  .card { grid-template-columns: minmax(0, 1fr); gap: 2rem; padding-top: 2rem; }
}

@media (max-width: 520px) {
  .sliders { grid-template-columns: minmax(0, 1fr) 3rem; }
  .sliders label { grid-column: 1 / -1; margin-top: 0.3rem; }
}