/* SatCon VMS — ECDIS night-watch instrument theme.
   Palette: chart ink, foam white, phosphor green (live only), watch amber,
   signal red, chart blue. */
:root {
  --ink: #0b1520;
  --panel: #101e2c;
  --panel-raised: #15263a;
  --grid: #1d3145;
  --foam: #d8e4ec;
  --foam-dim: #7d92a5;
  --phosphor: #35e0a1;
  --amber: #f0b429;
  --signal: #e4574c;
  --chart-blue: #4fa3d9;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --display: "Barlow Condensed", "Arial Narrow", var(--sans);
}

* { box-sizing: border-box; margin: 0; }
html, body { height: 100%; }
body {
  font-family: var(--sans);
  background: var(--ink);
  color: var(--foam);
  overflow: hidden;
}

#app { display: grid; grid-template-columns: 340px 1fr; grid-template-rows: 1fr 30px; height: 100vh; }

/* ---------- Sidebar: the instrument panel ---------- */
#sidebar {
  grid-row: 1 / 3;
  background: var(--panel);
  border-right: 1px solid var(--grid);
  display: flex; flex-direction: column;
  min-width: 0;
}
#brand {
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--grid);
  display: flex; align-items: baseline; justify-content: space-between;
}
#brand h1 {
  font-family: var(--display);
  font-weight: 600; font-size: 22px; letter-spacing: .08em;
  text-transform: uppercase;
}
#brand h1 span { color: var(--chart-blue); }
#conn {
  font-family: var(--mono); font-size: 11px; letter-spacing: .06em;
  display: inline-flex; align-items: center; gap: 6px;
}
#conn::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--signal); box-shadow: 0 0 6px var(--signal);
}
#conn.live::before { background: var(--phosphor); box-shadow: 0 0 6px var(--phosphor); }
#conn.live { color: var(--phosphor); }
#conn.down { color: var(--signal); }

#fleetbar {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--grid);
}
.stat { padding: 10px 12px; border-right: 1px solid var(--grid); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-family: var(--mono); font-size: 18px; }
.stat small {
  font-family: var(--display); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--foam-dim);
}
.stat.online b { color: var(--phosphor); }
.stat.stale b { color: var(--amber); }

#search {
  margin: 10px 12px;
  background: var(--ink); border: 1px solid var(--grid); border-radius: 3px;
  color: var(--foam); font-family: var(--mono); font-size: 12px;
  padding: 8px 10px; width: calc(100% - 24px);
}
#search:focus { outline: 2px solid var(--chart-blue); outline-offset: 1px; }
#search::placeholder { color: var(--foam-dim); }

#devices { overflow-y: auto; flex: 1; }
#devices:empty::after {
  content: "No vessels reporting yet. Waiting for first burst.";
  display: block; padding: 24px 16px; color: var(--foam-dim);
  font-size: 13px;
}
.card {
  width: 100%; text-align: left; cursor: pointer;
  background: none; border: 0; border-bottom: 1px solid var(--grid);
  color: var(--foam); padding: 10px 14px;
  display: grid; grid-template-columns: 10px 1fr auto; gap: 4px 10px;
  align-items: center; font-family: var(--mono);
}
.card:hover { background: var(--panel-raised); }
.card:focus-visible { outline: 2px solid var(--chart-blue); outline-offset: -2px; }
.card.selected { background: var(--panel-raised); box-shadow: inset 3px 0 0 var(--chart-blue); }
.lamp { width: 8px; height: 8px; border-radius: 50%; grid-row: 1 / 3; }
.lamp.online { background: var(--phosphor); box-shadow: 0 0 5px var(--phosphor); }
.lamp.stale  { background: var(--amber); }
.lamp.offline{ background: var(--foam-dim); opacity: .5; }
.card .uid { font-size: 12.5px; font-weight: 600; letter-spacing: .02em; }
.card .age { font-size: 11px; color: var(--foam-dim); text-align: right; }
.card .pos { grid-column: 2 / 4; font-size: 11px; color: var(--foam-dim); }
.card .flags { grid-column: 2 / 4; font-size: 10px; letter-spacing: .1em; }
.flag { color: var(--signal); margin-right: 8px; }
.flag.geo { color: var(--chart-blue); }

/* ---------- Map ---------- */
#map { grid-column: 2; grid-row: 1; background: var(--ink); }
.leaflet-container { background: var(--ink); font-family: var(--mono); }
.vessel-icon { filter: drop-shadow(0 0 3px rgba(0,0,0,.8)); }
.leaflet-popup-content-wrapper {
  background: var(--panel); color: var(--foam); border: 1px solid var(--grid);
  border-radius: 4px; font-family: var(--mono); font-size: 12px;
}
.leaflet-popup-tip { background: var(--panel); }
.popup-title { font-weight: 700; margin-bottom: 4px; }
.popup-row { display: flex; justify-content: space-between; gap: 16px; }
.popup-row span:first-child { color: var(--foam-dim); }

/* ---------- Telemetry ticker: the signature ---------- */
#ticker {
  grid-column: 2; grid-row: 2;
  background: var(--panel); border-top: 1px solid var(--grid);
  font-family: var(--mono); font-size: 11px; line-height: 30px;
  white-space: nowrap; overflow: hidden; color: var(--foam-dim);
  padding-left: 10px;
}
#ticker .burst { margin-right: 42px; }
#ticker .burst b { color: var(--phosphor); font-weight: 600; }
#ticker .burst .t { color: var(--chart-blue); }

@media (max-width: 760px) {
  #app { grid-template-columns: 1fr; grid-template-rows: 45vh 1fr 30px; }
  #sidebar { grid-row: 1; grid-column: 1; border-right: 0; border-bottom: 1px solid var(--grid); }
  #map { grid-column: 1; grid-row: 2; }
  #ticker { grid-column: 1; grid-row: 3; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ---------- Login overlay ---------- */
#login {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(11,21,32,.92); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center;
}
#login.hidden { display: none; }
#login form {
  background: var(--panel); border: 1px solid var(--grid); border-radius: 6px;
  padding: 28px 26px; width: 320px; display: grid; gap: 12px;
}
#login h2 { font-family: var(--display); letter-spacing: .1em; text-transform: uppercase; font-size: 18px; }
#login input {
  background: var(--ink); border: 1px solid var(--grid); border-radius: 3px;
  color: var(--foam); font-family: var(--mono); font-size: 13px; padding: 9px 10px;
}
#login input:focus { outline: 2px solid var(--chart-blue); }
#login button {
  background: var(--chart-blue); color: var(--ink); border: 0; border-radius: 3px;
  font-family: var(--display); font-size: 14px; letter-spacing: .12em;
  text-transform: uppercase; padding: 10px; cursor: pointer;
}
#login .err { color: var(--signal); font-family: var(--mono); font-size: 11px; min-height: 14px; }