/* Shared "ATC scope" theme for the ADS-B server web UI. */
@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  color-scheme: dark;
  --bg: #060a12;
  --bg-alt: #0a1120;
  --panel: #0d1526;
  --panel-alt: #101c33;
  --border: #1c2c4a;
  --border-soft: #16223a;
  --text: #dbe6f7;
  --muted: #7c8db1;
  --accent: #34e2b0;
  --accent-dim: #1c8f74;
  --accent2: #f5a623;
  --danger: #ff5d6c;
  --sky: #38bdf8;
  --violet: #b18cff;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --display: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--display);
}

/* Faint radar-ring texture used behind panels. */
.scope-grid {
  background-image:
    radial-gradient(circle at 15% 20%, rgba(52, 226, 176, 0.06), transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px;
}

::selection {
  background: var(--accent);
  color: #04140f;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-alt);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dim);
}

a {
  color: var(--accent);
}

/* Brand lockup: spinning radar-sweep mark + wordmark. */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand .mark {
  position: relative;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--accent-dim);
  background: radial-gradient(circle at 50% 50%, rgba(52, 226, 176, 0.15), transparent 70%);
  overflow: hidden;
  flex: none;
}
.brand .mark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: conic-gradient(from 0deg, rgba(52, 226, 176, 0.85), transparent 35%);
  animation: sweep 3.2s linear infinite;
}
.brand .mark::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: inset 0 0 0 1px rgba(52, 226, 176, 0.25);
}
.brand .wordmark {
  font-family: var(--display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.4px;
  color: var(--text);
  white-space: nowrap;
}
.brand .wordmark small {
  display: block;
  font-family: var(--mono);
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 1.2px;
  color: var(--muted);
  text-transform: uppercase;
}

@keyframes sweep {
  to {
    transform: rotate(360deg);
  }
}

/* Status pill with a pulsing dot, used for connection/live indicators. */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}
.pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
}
.pill.live {
  color: var(--accent);
  border-color: var(--accent-dim);
}
.pill.live .dot {
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(52, 226, 176, 0.6);
  animation: pulse 1.6s ease-out infinite;
}
.pill.down {
  color: var(--danger);
  border-color: #4a1f28;
}
.pill.down .dot {
  background: var(--danger);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(52, 226, 176, 0.55);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(52, 226, 176, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52, 226, 176, 0);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--text);
  text-decoration: none;
  font-size: 12.5px;
  font-family: var(--display);
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover {
  border-color: var(--accent-dim);
  color: var(--accent);
  background: #0f2019;
}