:root {
  color-scheme: dark;
  --ink: #f6f0dd;
  --dim: #a99d86;
  --red: #f04a37;
  --amber: #e3b447;
  --green: #9be072;
  --line: rgba(246, 240, 221, 0.22);
  --panel: rgba(6, 6, 5, 0.88);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  display: grid;
  place-items: center;
  padding: 16px;
  background:
    linear-gradient(rgba(246, 240, 221, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(246, 240, 221, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 50% 12%, rgba(240, 74, 55, 0.22), transparent 24rem),
    #060605;
  background-size: 100% 6px, 6px 100%, auto, auto;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

button,
input {
  font: inherit;
}

.signal-shell {
  width: 100%;
}

.feed-console {
  width: min(100%, 760px);
  min-height: min(880px, calc(100vh - 32px));
  display: grid;
  grid-template-rows: auto 1fr auto auto auto auto;
  gap: 18px;
  margin: 0 auto;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.56);
  overflow: hidden;
}

.topline,
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
}

.topline img,
.receiver-logo {
  width: min(48vw, 280px);
  min-width: 160px;
  filter: drop-shadow(0 0 18px rgba(240, 74, 55, 0.34));
}

.topline span,
.eyebrow,
.status,
.seconds,
.status-grid span,
dt {
  color: var(--amber);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stage {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 8px;
  padding: 28px 18px 0;
  text-align: center;
}

.eyebrow,
.status,
.seconds {
  margin: 0;
}

.status {
  color: var(--green);
}

.duration {
  font-size: clamp(100px, 28vw, 218px);
  font-weight: 950;
  line-height: 0.78;
}

.copy {
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 0 28px;
  text-align: center;
}

h1,
h2 {
  margin: 0;
  font-family: Arial Black, Arial, Helvetica, sans-serif;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(36px, 9vw, 78px);
  line-height: 0.84;
}

.copy p {
  max-width: 520px;
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.28;
}

.warning {
  color: var(--red);
  font-size: 13px !important;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meter {
  display: grid;
  width: calc(100% - 36px);
  height: 64px;
  grid-template-columns: repeat(8, 1fr);
  align-items: end;
  gap: 8px;
  margin: 0 auto;
  padding: 14px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.36);
}

.meter i {
  display: block;
  height: 100%;
  transform: scaleY(0.18);
  transform-origin: bottom;
  background: linear-gradient(var(--red), var(--amber));
  transition: transform 120ms ease;
}

.actions {
  display: grid;
  gap: 10px;
  padding: 0 18px;
}

button {
  min-height: 56px;
  border: 1px solid transparent;
  background: var(--red);
  color: #080706;
  cursor: pointer;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.secondary {
  border-color: var(--line);
  background: transparent;
  color: var(--ink);
}

button:disabled {
  cursor: not-allowed;
  filter: grayscale(0.8);
  opacity: 0.55;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.status-grid div {
  display: grid;
  gap: 4px;
  min-width: 0;
  border-right: 1px solid var(--line);
  padding: 14px 12px;
  text-align: center;
}

.status-grid div:last-child {
  border-right: 0;
}

.status-grid strong,
dd {
  margin: 0;
  color: var(--green);
  font-weight: 950;
  overflow-wrap: anywhere;
}

.receiver-shell {
  place-items: start center;
}

.receiver-grid {
  display: grid;
  width: min(100%, 1040px);
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 18px;
}

.receiver-console,
.receiver-board {
  display: grid;
  gap: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 24px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.42);
}

.receiver-logo {
  width: min(72%, 340px);
}

audio {
  width: 100%;
}

.receiver-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.receiver-actions button {
  flex: 1 1 210px;
}

dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

dl div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

@media (max-width: 760px) {
  .status-grid,
  .receiver-grid {
    grid-template-columns: 1fr;
  }

  .status-grid div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .status-grid div:last-child {
    border-bottom: 0;
  }
}