:root {
  color-scheme: dark;
  --ink: #f2efe6;
  --muted: #9aa5a2;
  --line: rgba(255, 255, 255, 0.13);
  --panel: rgba(18, 20, 20, 0.82);
  --brass: #c69a55;
  --green: #71e0ae;
  --red: #cf6679;
  --blue: #86b8ff;
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(198, 154, 85, 0.18), transparent 30%),
    radial-gradient(circle at 80% 18%, rgba(113, 224, 174, 0.12), transparent 28%),
    linear-gradient(135deg, #090b0e, #171918 52%, #0c1211);
}

button,
input {
  font: inherit;
}

.radio-app {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 14px;
  width: min(1380px, 100vw);
  min-height: 100vh;
  margin: 0 auto;
  padding: 18px;
}

.radio-header {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  min-height: 72px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(15, 17, 17, 0.74);
  backdrop-filter: blur(18px);
}

.home-link {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
}

.radio-header h1 {
  margin: 0;
  font-size: clamp(20px, 3vw, 32px);
  letter-spacing: 0;
}

.radio-header p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.radio-status {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 210px;
  padding: 10px 12px;
  border: 1px solid rgba(113, 224, 174, 0.25);
  border-radius: 8px;
  background: rgba(113, 224, 174, 0.08);
}

.radio-status span {
  color: #d9fff0;
}

.radio-status strong {
  margin-left: auto;
  color: var(--green);
  font-variant-numeric: tabular-nums;
}

.radio-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 14px;
  min-height: 0;
}

.receiver,
.controls {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

.receiver {
  display: grid;
  grid-template-rows: minmax(360px, 1fr) auto;
  min-height: 0;
  padding: 14px;
}

.receiver-glass {
  position: relative;
  min-height: 0;
  border: 1px solid rgba(113, 224, 174, 0.22);
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(113, 224, 174, 0.04), transparent 28% 68%, rgba(198, 154, 85, 0.05)),
    #070b0b;
}

#radioCanvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
}

.frequency-readout {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid rgba(198, 154, 85, 0.28);
  border-radius: 8px;
  background: rgba(8, 11, 11, 0.74);
  color: #f5e4bd;
  font-variant-numeric: tabular-nums;
}

.frequency-readout span {
  font-size: clamp(26px, 4vw, 48px);
  font-weight: 700;
}

.frequency-readout small {
  color: var(--muted);
}

.decoder-panel {
  margin-top: 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.decoded-label {
  color: var(--brass);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.decoder-panel p {
  min-height: 54px;
  margin: 8px 0 0;
  color: #eafbf2;
  font-size: clamp(18px, 2.3vw, 28px);
  line-height: 1.45;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px;
}

.controls label {
  display: grid;
  gap: 10px;
}

.controls label span {
  color: var(--muted);
  font-size: 13px;
}

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

.button-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.button-grid button,
.transmission-list button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  cursor: pointer;
}

.button-grid button:hover,
.transmission-list button:hover {
  border-color: rgba(198, 154, 85, 0.5);
  background: rgba(198, 154, 85, 0.11);
}

.transmission-list {
  display: grid;
  gap: 8px;
  margin-top: auto;
}

.transmission-list button {
  display: flex;
  justify-content: space-between;
  padding: 0 12px;
  color: var(--muted);
}

.transmission-list button.is-active {
  border-color: rgba(113, 224, 174, 0.5);
  color: #e9fff6;
}

.transmission-list button.is-decoded {
  color: var(--brass);
}

@media (max-width: 880px) {
  .radio-app {
    padding: 10px;
  }

  .radio-header {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .radio-status {
    grid-column: 1 / -1;
    width: 100%;
  }

  .radio-body {
    grid-template-columns: 1fr;
  }

  .receiver {
    grid-template-rows: minmax(360px, 62vh) auto;
  }
}