/*
 * flysdown - dark operations console.
 *
 * Colour roles come from js/palette.js (validated against this page's dark
 * surface). Anything status-coloured here also carries a glyph and a word,
 * because red-vs-green is the one pair colour vision cannot be trusted on.
 */

:root {
  color-scheme: dark;

  --page: #0d0d0d;
  --surface: #141416;
  --surface-raised: #1a1a19;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --ink-muted: #898781;
  --grid: #2c2c2a;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);

  --critical: #d03b3b;
  --serious: #ec835a;
  --warning: #fab219;
  --notice: #898781;
  --good: #0ca30c;

  --aircraft: #3987e5;
  --vessel: #d95926;

  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius: 10px;
  --radius-sm: 6px;
  --panel-w-left: 332px;
  --panel-w-right: 360px;
}

* { box-sizing: border-box; }

/*
 * The hidden attribute has to beat the class rules below: a plain
 * [hidden] { display: none } from the UA sheet loses to .zone-form { display: flex },
 * which left the zone form and the map banner permanently on screen.
 */
[hidden] { display: none !important; }

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

body {
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--page);
  color: var(--ink);
  font: 400 14px/1.45 var(--font);
  overflow: hidden;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--surface-raised);
  color: var(--ink);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 18px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(145deg, #3987e5, #184f95);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 16px; letter-spacing: 0.01em; }
.brand-text span { color: var(--ink-muted); font-size: 12px; }

.topbar-controls { display: flex; align-items: flex-end; gap: 10px; margin-left: auto; }

.feed-chips { display: flex; gap: 8px; flex-wrap: wrap; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-raised);
  font-size: 12px;
  color: var(--ink-2);
  white-space: nowrap;
}

.chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--notice);
  flex: none;
}
.chip .glyph { font-size: 11px; font-weight: 700; }
.chip b { color: var(--ink); font-weight: 600; }

/* ---------- controls ---------- */

.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }

.field-label {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-muted);
}

select, input[type="text"], input[type="number"] {
  background: var(--surface-raised);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 7px 9px;
  font: inherit;
  font-size: 13px;
  max-width: 100%;
}

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

.btn {
  background: var(--surface-raised);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.btn:hover { border-color: rgba(255, 255, 255, 0.34); }
.btn:focus-visible, select:focus-visible, input:focus-visible, .linkish:focus-visible {
  outline: 2px solid var(--aircraft);
  outline-offset: 2px;
}
.btn-sm { padding: 6px 10px; font-size: 12px; }
.btn-primary { background: #1c5cab; border-color: #3987e5; }
.btn[aria-pressed="true"] { background: #3a2f10; border-color: var(--warning); color: var(--ink); }
.btn.active { background: #12352a; border-color: #199e70; }

.check { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--ink-2); cursor: pointer; }
.check input { accent-color: var(--aircraft); width: 15px; height: 15px; }

.linkish {
  background: none;
  border: 0;
  color: var(--ink-2);
  font: inherit;
  font-size: 12px;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
}

/* ---------- layout ---------- */

.layout {
  display: grid;
  grid-template-columns: var(--panel-w-left) 1fr var(--panel-w-right);
  min-height: 0;
}

.panel {
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 4px 0 24px;
  min-height: 0;
}
.panel-right { border-right: 0; border-left: 1px solid var(--border); }

.block { padding: 16px 16px 4px; border-bottom: 1px solid var(--border); }
.block:last-child { border-bottom: 0; }

.block-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }

.block-title {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.block-note { font-size: 11px; color: var(--ink-muted); }
.hint { color: var(--ink-muted); font-size: 12px; margin: 6px 0 10px; }

/* ---------- stat tiles ---------- */

.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 14px; }

.tile {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
}

.tile-value { font-size: 26px; line-height: 1.1; font-weight: 600; }
.tile-label { font-size: 11px; color: var(--ink-muted); margin-top: 3px; }
.tile-sub { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--ink-2); margin-top: 6px; }

/* ---------- altitude chart ---------- */

.chart { display: flex; flex-direction: column; gap: 2px; margin-bottom: 14px; }

.chart-row {
  display: grid;
  grid-template-columns: 96px 1fr 34px;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--ink-2);
  cursor: default;
}
.chart-row:hover .bar-fill { filter: brightness(1.15); }

.chart-label { text-align: right; color: var(--ink-muted); white-space: nowrap; }

.bar-track { height: 12px; background: rgba(255, 255, 255, 0.05); border-radius: 3px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 0 4px 4px 0; min-width: 2px; transition: width 220ms ease; }
.chart-value { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink); }

/* ---------- zones ---------- */

.draw-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }

.zone-form { display: flex; flex-direction: column; gap: 10px; padding: 12px; margin-bottom: 12px; background: var(--surface-raised); border: 1px solid var(--border-strong); border-radius: var(--radius); }
.zone-form fieldset { border: 0; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.zone-form legend { padding: 0; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.form-actions { display: flex; gap: 8px; }

.zone-list { list-style: none; margin: 0 0 12px; padding: 0; display: flex; flex-direction: column; gap: 2px; }

.zone-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 9px;
  padding: 7px 8px;
  border-radius: var(--radius-sm);
}
.zone-item:hover { background: rgba(255, 255, 255, 0.04); }
.zone-item.breached { background: rgba(208, 59, 59, 0.10); }

.zone-swatch { width: 12px; height: 12px; border-radius: 3px; border: 1.5px solid currentColor; flex: none; }
.zone-name { font-size: 13px; }
.zone-name button { background: none; border: 0; color: var(--ink); font: inherit; padding: 0; cursor: pointer; text-align: left; }
.zone-name button:hover { text-decoration: underline; }
.zone-meta { font-size: 11px; color: var(--ink-muted); }
.zone-actions { display: flex; align-items: center; gap: 6px; }
.zone-delete { background: none; border: 0; color: var(--ink-muted); cursor: pointer; font-size: 15px; line-height: 1; padding: 2px 4px; }
.zone-delete:hover { color: var(--critical); }
.zone-io { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }

/* ---------- legend ---------- */

.legend { display: flex; flex-direction: column; gap: 12px; margin-bottom: 12px; }
.legend-group { display: flex; flex-direction: column; gap: 5px; }
.legend-group h3 { margin: 0; font-size: 11px; color: var(--ink-muted); font-weight: 600; letter-spacing: 0.04em; }
.legend-row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink-2); }
.legend-swatch { width: 14px; height: 10px; border-radius: 2px; flex: none; }
.legend-dash { width: 20px; height: 0; border-top-width: 2px; border-top-style: solid; flex: none; }

/* ---------- map ---------- */

.map-wrap { position: relative; min-height: 0; }
#map { position: absolute; inset: 0; }

.map-tooltip {
  position: absolute;
  z-index: 5;
  pointer-events: none;
  background: rgba(13, 13, 13, 0.94);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 7px 9px;
  font-size: 12px;
  line-height: 1.35;
  max-width: 250px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45);
}
.map-tooltip b { display: block; font-size: 12px; margin-bottom: 2px; }
.map-tooltip span { color: var(--ink-muted); }

.map-banner {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: min(680px, calc(100% - 32px));
  background: rgba(20, 20, 22, 0.95);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 12px;
  color: var(--ink-2);
}
.map-banner .btn { padding: 4px 9px; font-size: 12px; }

.maplibregl-ctrl-attrib, .maplibregl-ctrl-scale { font-size: 10px !important; }
.maplibregl-ctrl-attrib.maplibregl-compact { background: rgba(13,13,13,0.8) !important; }
.maplibregl-ctrl-attrib a { color: var(--ink-muted) !important; }
.maplibregl-ctrl-scale { background: rgba(13,13,13,0.6) !important; border-color: var(--border-strong) !important; color: var(--ink-2) !important; }

/* ---------- alerts ---------- */

.alert-list { list-style: none; margin: 0 0 8px; padding: 0; display: flex; flex-direction: column; gap: 6px; }

.alert {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  padding: 9px 10px;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-left: 3px solid var(--notice);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  width: 100%;
  font: inherit;
  color: inherit;
}
.alert:hover { border-color: var(--border-strong); }
.alert.is-critical { border-left-color: var(--critical); }
.alert.is-serious { border-left-color: var(--serious); }
.alert.is-warning { border-left-color: var(--warning); }
.alert.is-notice { border-left-color: var(--notice); }

.alert-glyph {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  color: var(--page);
  flex: none;
}

.alert-title { font-size: 13px; font-weight: 600; }
.alert-sev { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-muted); }
.alert-detail { font-size: 12px; color: var(--ink-2); margin-top: 3px; }
.alert-eta { font-size: 11px; color: var(--ink-muted); margin-top: 4px; font-variant-numeric: tabular-nums; }

/* ---------- detail ---------- */

.detail-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.detail-head h3 { margin: 0; font-size: 17px; }
.detail-kind { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-muted); }
.detail-sub { color: var(--ink-2); font-size: 12px; margin: 0 0 12px; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 12px; margin: 0 0 14px; }
.kv dt { color: var(--ink-muted); }
.kv dd { margin: 0; font-variant-numeric: tabular-nums; }

.detail-zones { list-style: none; margin: 0 0 12px; padding: 0; display: flex; flex-direction: column; gap: 4px; font-size: 12px; }
.detail-zones li { display: flex; gap: 8px; align-items: baseline; }
.detail-zones .z-eta { color: var(--ink-muted); font-variant-numeric: tabular-nums; }

/* ---------- status bar ---------- */

.statusbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 7px 18px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--ink-muted);
  flex-wrap: wrap;
}
.statusbar .disclaimer { margin-left: auto; text-align: right; }
.footer-links { display: flex; gap: 12px; align-items: center; }
.footer-links a { color: var(--ink-2); font-size: 12px; }

/* ---------- table dialog ---------- */

#table-dialog {
  width: min(1100px, 92vw);
  max-height: 84vh;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0;
}
#table-dialog::backdrop { background: rgba(0, 0, 0, 0.66); }
.dialog-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.dialog-head h2 { margin: 0; font-size: 15px; }
.table-wrap { overflow: auto; max-height: 68vh; padding: 0 16px 16px; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th { position: sticky; top: 0; background: var(--surface); color: var(--ink-muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- responsive ---------- */

@media (max-width: 1280px) {
  :root { --panel-w-left: 296px; --panel-w-right: 320px; }
}

@media (max-width: 1040px) {
  body { overflow: auto; }
  .layout { grid-template-columns: 1fr; }
  .panel { border: 0; border-top: 1px solid var(--border); overflow: visible; }
  .panel-left { order: 3; }
  .panel-right { order: 2; border-left: 0; }
  .map-wrap { order: 1; height: 62vh; min-height: 380px; }
  #map { position: relative; height: 100%; }
  .topbar { align-items: flex-start; }
  .topbar-controls { margin-left: 0; }
  .statusbar .disclaimer { margin-left: 0; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  .bar-fill { transition: none; }
}