:root {
  color-scheme: dark;
  --bg: #06070c;
  --panel: #111521;
  --line: #2b344a;
  --text: #e8edff;
  --muted: #9ca8cc;
  --cyan: #52efff;
  --amber: #ffd86b;
  --danger: #ff6f91;
  --ok: #8dff93;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(82, 239, 255, 0.16), transparent 34%),
    radial-gradient(circle at 88% 10%, rgba(255, 216, 107, 0.11), transparent 30%),
    linear-gradient(180deg, #0a1020 0%, var(--bg) 100%);
}

.deck {
  width: min(840px, 94vw);
  margin: 2rem auto 2.6rem;
  display: grid;
  gap: 0.95rem;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem 1.1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.73rem;
  color: var(--cyan);
}

h1 {
  margin: 0.38rem 0 0;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
}

.subtitle {
  margin: 0.45rem 0 0;
  color: var(--muted);
  max-width: 62ch;
}

.hud {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.5rem;
}

.stat {
  border: 1px solid #334061;
  border-radius: 10px;
  padding: 0.55rem 0.6rem;
  background: rgba(12, 16, 28, 0.72);
}

.label {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.value {
  display: block;
  margin-top: 0.16rem;
  font-size: 1.12rem;
  font-weight: 700;
}

.controls {
  display: grid;
  gap: 0.75rem;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

button,
input {
  border-radius: 10px;
  border: 1px solid #3a4668;
  background: #131a2f;
  color: var(--text);
  font: inherit;
}

button {
  cursor: pointer;
  padding: 0.56rem 0.9rem;
  transition: transform 100ms ease, filter 120ms ease;
}

button:hover:enabled {
  filter: brightness(1.08);
}

button:active:enabled {
  transform: translateY(1px);
}

button:disabled,
input:disabled {
  opacity: 0.54;
  cursor: not-allowed;
}

button.primary {
  border-color: #00b4c5;
  background: linear-gradient(180deg, #4af2ff, #0f879f);
  color: #032129;
  font-weight: 700;
}

label {
  color: var(--muted);
  font-size: 0.85rem;
}

.guess-row {
  display: flex;
  gap: 0.45rem;
  margin-top: 0.34rem;
}

input {
  flex: 1;
  min-width: 0;
  padding: 0.56rem 0.65rem;
  text-transform: uppercase;
}

.status {
  margin: 0;
  color: #d3dcff;
  min-height: 1.35rem;
}

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

.status.bad {
  color: var(--danger);
}

.signal-panel {
  display: grid;
  gap: 0.6rem;
}

.signal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

h2 {
  margin: 0;
  font-size: 1.04rem;
}

.lamp {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid #54638d;
  background: #2a3148;
  box-shadow: inset 0 0 14px rgba(0, 0, 0, 0.45);
}

.lamp.live {
  background: radial-gradient(circle at 35% 30%, #fff0b6, #ffb341 72%);
  border-color: #ffce73;
  box-shadow: 0 0 16px rgba(255, 179, 65, 0.74), inset 0 0 11px rgba(255, 255, 255, 0.58);
}

.morse-readout {
  font-family: "Consolas", "Courier New", monospace;
  letter-spacing: 0.18em;
  font-size: 1.12rem;
  border: 1px solid #354164;
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  min-height: 2.6rem;
  background: rgba(11, 15, 28, 0.8);
  color: var(--amber);
  overflow-wrap: anywhere;
}

.signal-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.notes ul {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.32rem;
  color: #d8e0ff;
}

@media (max-width: 720px) {
  .hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .guess-row {
    flex-direction: column;
  }
}