* {
  box-sizing: border-box;
}

:root {
  --bg: #02080d;
  --panel: #06141e;
  --panel2: #082333;
  --cyan: #1bbcff;
  --cyan-soft: #75d8ff;
  --green: #8bf34a;
  --amber: #ffc857;
  --red: #ff5a5a;
  --line: rgba(77, 178, 220, 0.36);
  --text: #eaf7ff;
  --muted: #8fa9b7;
}

html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
}

body {
  display: flex;
  align-items: stretch;
  justify-content: stretch;
}

.screen {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
}

.topbar {
  height: 14%;
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.55fr;
  align-items: center;
  gap: 2vw;
  padding: 0 3.4vw;
  border-bottom: 2px solid var(--cyan);
  background:
    linear-gradient(180deg, rgba(15,28,38,0.96), rgba(3,10,15,0.92));
}

.brand {
  font-size: 3.25vh;
  font-weight: 900;
  font-style: italic;
  letter-spacing: 0.12em;
}

.subbrand {
  margin-top: 0.45vh;
  font-size: 1.25vh;
  letter-spacing: 0.26em;
  color: var(--cyan-soft);
}

.top-status {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 1vw;
  font-size: 2.2vh;
  font-weight: 800;
  letter-spacing: 0.13em;
  color: var(--green);
}

.status-dot {
  width: 1.5vh;
  height: 1.5vh;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px var(--green);
}

.clock-block {
  text-align: right;
}

#clock {
  font-size: 2.5vh;
  font-weight: 800;
}

#date {
  margin-top: 0.4vh;
  font-size: 1.2vh;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.content {
  height: 72%;
  padding: 2.6vh 3.2vw 1.8vh;
  display: grid;
  grid-template-columns: 1fr 1.08fr 1fr;
  grid-template-rows: 1fr auto;
  gap: 2.2vh 3vw;
}

.engine-panel,
.centre-panel,
.metric-card {
  background:
    linear-gradient(180deg, rgba(8, 31, 45, 0.88), rgba(3, 14, 21, 0.86));
  border: 1px solid var(--line);
  box-shadow:
    inset 0 0 26px rgba(0, 140, 205, 0.08),
    0 0 18px rgba(0,0,0,0.25);
}

.engine-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  clip-path: polygon(5% 0, 95% 0, 100% 10%, 100% 90%, 95% 100%, 5% 100%, 0 90%, 0 10%);
}

.panel-title {
  margin-bottom: 1.4vh;
  font-size: 1.45vh;
  color: var(--cyan-soft);
  letter-spacing: 0.18em;
}

.engine-ring {
  width: 18vh;
  height: 18vh;
  border-radius: 50%;
  padding: 1.15vh;
  background:
    conic-gradient(var(--cyan) 0 78%, rgba(70,110,130,.18) 78% 100%);
  box-shadow:
    0 0 16px rgba(0, 183, 255, 0.28),
    inset 0 0 16px rgba(0,0,0,.8);
}

.engine-core {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background:
    radial-gradient(circle, #0b2230 0, #041018 68%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(117,216,255,.35);
}

.engine-state {
  font-size: 2.2vh;
  font-weight: 900;
  color: var(--green);
}

.engine-label {
  margin-top: .5vh;
  font-size: 1vh;
  color: var(--muted);
  letter-spacing: .16em;
}

.centre-panel {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  align-items: center;
  padding: 2vh 2vw;
  clip-path: polygon(4% 0, 96% 0, 100% 10%, 100% 90%, 96% 100%, 4% 100%, 0 90%, 0 10%);
}

.compass {
  display: flex;
  align-items: center;
  justify-content: center;
}

.compass-ring {
  position: relative;
  width: 24vh;
  height: 24vh;
  border-radius: 50%;
  border: 1px solid rgba(117,216,255,.55);
  box-shadow:
    0 0 18px rgba(0, 183, 255, .26),
    inset 0 0 24px rgba(0, 140, 205, .16);
  background:
    repeating-conic-gradient(from -1deg, rgba(117,216,255,.42) 0 1deg, transparent 1deg 10deg),
    radial-gradient(circle, rgba(7,39,56,.9), rgba(2,10,15,.96));
}

.tick {
  position: absolute;
  font-size: 1.25vh;
  font-weight: 800;
  color: var(--cyan-soft);
}

.tick.n { top: 1vh; left: 50%; transform: translateX(-50%); }
.tick.e { right: 1.2vh; top: 50%; transform: translateY(-50%); }
.tick.s { bottom: 1vh; left: 50%; transform: translateX(-50%); }
.tick.w { left: 1.2vh; top: 50%; transform: translateY(-50%); }

.needle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: .7vh;
  height: 9vh;
  transform-origin: 50% 100%;
  transform: translate(-50%, -100%) rotate(0deg);
  background: linear-gradient(180deg, var(--red), var(--amber));
  clip-path: polygon(50% 0, 100% 100%, 50% 82%, 0 100%);
  filter: drop-shadow(0 0 8px rgba(255,90,90,.75));
}

.compass-centre {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.compass-centre span {
  font-size: 2.7vh;
  font-weight: 900;
}

.compass-centre small {
  margin-top: .35vh;
  color: var(--muted);
  letter-spacing: .15em;
}

.speed-block {
  text-align: center;
}

.speed-value {
  display: block;
  font-size: 7.5vh;
  line-height: .9;
  font-weight: 900;
  color: var(--cyan-soft);
  text-shadow: 0 0 16px rgba(27,188,255,.4);
}

.speed-unit {
  display: block;
  margin-top: 1vh;
  color: var(--muted);
  letter-spacing: .22em;
  font-size: 1.4vh;
}

.lower-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 2vw;
}

.metric-card {
  position: relative;
  min-height: 10vh;
  padding: 1.4vh 1.4vw;
}

.metric-title {
  font-size: 1.25vh;
  letter-spacing: .18em;
  color: var(--cyan-soft);
}

.bar {
  margin-top: 1.6vh;
  height: 1.3vh;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(117,216,255,.25);
}

.fill {
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, #1bbcff, #8bf34a);
  box-shadow: 0 0 12px rgba(27,188,255,.35);
  transition: width .35s ease;
}

.metric-value {
  position: absolute;
  right: 1.4vw;
  top: 1.25vh;
  font-size: 2vh;
  font-weight: 900;
  color: var(--green);
}

.radio-card {
  display: grid;
  grid-template-columns: .55fr 1fr 1fr;
  align-items: center;
  column-gap: 1vw;
}

.radio-value {
  font-size: 2.2vh;
  font-weight: 900;
  color: var(--cyan-soft);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.equaliser {
  height: 5vh;
  display: flex;
  gap: .35vw;
  align-items: end;
  justify-content: flex-end;
}

.equaliser i {
  width: .38vw;
  min-width: 3px;
  background: var(--cyan);
  box-shadow: 0 0 6px rgba(27,188,255,.5);
  animation: pulse 1.1s infinite ease-in-out;
}

.equaliser i:nth-child(2) { animation-delay: -.2s; }
.equaliser i:nth-child(3) { animation-delay: -.55s; }
.equaliser i:nth-child(4) { animation-delay: -.35s; }
.equaliser i:nth-child(5) { animation-delay: -.75s; }
.equaliser i:nth-child(6) { animation-delay: -.15s; }
.equaliser i:nth-child(7) { animation-delay: -.48s; }
.equaliser i:nth-child(8) { animation-delay: -.62s; }

@keyframes pulse {
  0%,100% { height: 20%; opacity: .45; }
  50% { height: 100%; opacity: 1; }
}

.footer {
  height: 14%;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 1px solid rgba(117,216,255,.35);
  background: rgba(0,0,0,.62);
}

.footer-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-right: 1px solid rgba(117,216,255,.18);
  font-size: 1.05vh;
  color: var(--muted);
  letter-spacing: .16em;
}

.footer-item:last-child {
  border-right: none;
}

.footer-item strong {
  margin-top: .6vh;
  font-size: 1.45vh;
  color: var(--amber);
}

.footer-item strong.good,
.good {
  color: var(--green);
}

.off {
  color: #728896 !important;
}

.warning {
  color: var(--amber) !important;
}

.danger {
  color: var(--red) !important;
}

.scanlines {
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    180deg,
    rgba(255,255,255,.018) 0,
    rgba(255,255,255,.018) 1px,
    transparent 1px,
    transparent 4px
  );
  mix-blend-mode: screen;
  opacity: .3;
}

@media (max-aspect-ratio: 4/3) {
  .content {
    grid-template-columns: 1fr 1fr;
  }

  .centre-panel {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .engine-panel.port,
  .engine-panel.starboard {
    grid-row: 2;
  }

  .lower-grid {
    grid-row: 3;
  }
}