:root {
  --bg: #10141a;
  --panel: #1a212b;
  --panel-2: #212a37;
  --ink: #dfe7f1;
  --muted: #8ba0b8;
  --accent: #5cc8ff;
  --ok: #62d493;
  --warn: #f0b856;
  --bad: #ef7b6d;
  --fr: #b39ddb;
  --en: #80cbc4;
  --mono: "SF Mono", ui-monospace, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid #000;
}
header h1 { margin: 0; font-size: 20px; letter-spacing: 1px; color: var(--accent); }
.tagline { color: var(--muted); font-size: 13px; flex: 1; }
.conn { color: var(--bad); font-size: 12px; }
.conn.ok { color: var(--ok); }

.screen { padding: 20px; max-width: 1200px; margin: 0 auto; }
.hidden { display: none !important; }

button {
  font: inherit;
  border: 0;
  border-radius: 8px;
  padding: 9px 18px;
  cursor: pointer;
  background: var(--panel-2);
  color: var(--ink);
}
button.primary { background: var(--accent); color: #06222f; font-weight: 600; }
button.ghost { background: transparent; border: 1px solid var(--muted); color: var(--muted); }
button.link { background: none; color: var(--accent); padding: 0; font-size: 13px; }
button:hover { filter: brightness(1.12); }

.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.card {
  background: var(--panel);
  border: 1px solid #2a3646;
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
}
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 13px; }

.brief {
  background: var(--panel);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 16px;
}
.brief table { border-collapse: collapse; }
.brief td { padding: 3px 14px 3px 0; vertical-align: top; }
.brief td:first-child { color: var(--muted); white-space: nowrap; }
.notice { color: var(--warn); font-size: 13px; margin-top: 10px; }

/* --- difficulty ladder --- */
.levels { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.level {
  flex: 1 1 200px;
  background: var(--panel);
  border: 1px solid #2a3646;
  border-radius: 10px;
  padding: 12px 14px;
  cursor: pointer;
  text-align: left;
}
.level:hover { border-color: var(--accent); }
.level.on { border-color: var(--accent); background: var(--panel-2); }
.level .step { color: var(--muted); font-family: var(--mono); font-size: 11px; }
.level.on .step { color: var(--accent); }
.level b { display: block; margin: 2px 0 4px; }
.level small { color: var(--muted); font-size: 12.5px; line-height: 1.4; display: block; }

/* --- sim layout --- */
.sim-layout {
  display: grid;
  grid-template-columns: minmax(340px, 1.2fr) minmax(340px, 1fr);
  gap: 14px;
  height: calc(100vh - 100px);
}
.fly-pane { display: flex; flex-direction: column; gap: 10px; min-height: 0; }
.map-pane { position: relative; background: #0b0e13; border-radius: 10px; overflow: hidden; flex: 1; min-height: 220px; }

/* Registration placard: which aeroplane you are, readable at a glance. */
.placard {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(7, 9, 13, .88);
  border: 1px solid #38445a;
  border-radius: 8px;
  padding: 5px 14px 6px;
  text-align: right;
}
.placard span {
  display: block;
  font: 700 26px/1.05 var(--mono);
  letter-spacing: 2px;
  color: #f2f6fb;
}
.placard small { color: var(--muted); font-size: 11px; letter-spacing: .5px; }

.alert-banner {
  position: absolute;
  left: 10px; right: 10px; bottom: 10px;
  background: rgba(58, 31, 28, .95);
  border: 1px solid var(--bad);
  border-left-width: 4px;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  color: #ffd9d3;
}
.alert-banner b { display: block; color: #fff; }
.alert-banner.fresh { animation: flash .5s 3; }
@keyframes flash { 50% { background: rgba(120, 40, 34, .97); } }

/* --- cockpit panel --- */
.cockpit {
  display: grid;
  grid-template-columns: auto minmax(240px, 1fr);
  gap: 14px;
  background:
    linear-gradient(180deg, #232a35 0%, #191f28 100%);
  border: 1px solid #000;
  border-top: 1px solid #3a4456;
  border-radius: 10px;
  padding: 12px 14px;
}
.gauges { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; }
.dial { display: block; }
.strip { display: flex; flex-direction: column; gap: 6px; justify-content: center; }
.ro {
  background: #07090d;
  border: 1px solid #3a4456;
  border-radius: 6px;
  padding: 4px 10px;
  min-width: 92px;
}
.rolabel { display: block; color: var(--muted); font-size: 9px; letter-spacing: 1px; }
.ro .big { font: 700 18px var(--mono); color: #f2f6fb; }
.ro .leg { font: 600 12px var(--mono); color: var(--accent); text-transform: uppercase; }

.controls { display: flex; flex-direction: column; gap: 7px; justify-content: center; }
.ctl-row { display: flex; align-items: center; gap: 8px; }
.ctl-row.hidden { display: none; }
.ctl-row > label { color: var(--muted); font-size: 12px; width: 92px; flex: none; }
.ctl-row .mono { font: 600 13px var(--mono); min-width: 62px; text-align: right; }
.ctl-row .unit { color: var(--muted); font-size: 11px; }
input.range { flex: 1; min-width: 90px; accent-color: var(--accent); }
input.num {
  width: 68px;
  background: #07090d;
  color: var(--ink);
  border: 1px solid #3a4456;
  border-radius: 6px;
  padding: 5px 7px;
  font: 600 14px var(--mono);
  text-align: center;
}
input.num.code { width: 76px; letter-spacing: 2px; }
button.nudge { padding: 4px 9px; background: #2b3444; font-size: 12px; }
.seg { display: flex; }
button.segbtn {
  padding: 5px 11px;
  border-radius: 0;
  background: #222a36;
  border: 1px solid #3a4456;
  color: var(--muted);
  font-size: 12px;
}
.seg button:first-child { border-radius: 6px 0 0 6px; }
.seg button:last-child { border-radius: 0 6px 6px 0; }
button.segbtn.on { background: var(--accent); color: #06222f; font-weight: 700; border-color: var(--accent); }
.turns { gap: 10px; }
button.turn {
  flex: 1;
  background: #2b3444;
  border: 1px solid #4a5670;
  font-weight: 600;
  padding: 10px;
}
button.turn:disabled { opacity: .4; cursor: not-allowed; }
.hintline { margin: 2px 0 0; color: var(--muted); font-size: 11.5px; }

/* --- debrief: flying errors --- */
.derr {
  background: #2a1e1c;
  border: 1px solid #6b3a33;
  border-left: 4px solid var(--bad);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 8px;
}
.derr b { color: #ffc9c0; }
.derr .when { color: var(--muted); font-family: var(--mono); font-size: 12px; float: right; }
.derr p { margin: 4px 0 0; font-size: 13px; }
.derr .pd { color: var(--warn); font-size: 12px; margin-top: 6px; }
.dclean {
  background: var(--panel);
  border-left: 4px solid var(--ok);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 8px;
  color: var(--ok);
  font-size: 13.5px;
}
#map { width: 100%; height: 100%; display: block; }
.map-overlay { position: absolute; top: 10px; left: 10px; display: flex; gap: 8px; }
.badge {
  background: rgba(16, 20, 26, .85);
  border: 1px solid #2a3646;
  color: var(--ink);
  border-radius: 6px;
  padding: 3px 10px;
  font-family: var(--mono);
  font-size: 13px;
}
.badge.fast { color: var(--accent); }
.badge.hold { color: var(--warn); }

.radio-pane { display: flex; flex-direction: column; gap: 10px; min-height: 0; }

.radio-stack { display: flex; gap: 10px; }
.radio-btn {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  font-family: var(--mono);
  background: var(--panel);
  border: 1px solid #2a3646;
  padding: 8px 14px;
}
.radio-btn .rlabel { color: var(--muted); font-size: 12px; }
.radio-btn .rfreq { font-size: 16px; }
.radio-btn.active { border-color: var(--accent); background: var(--panel-2); }
.radio-btn.active .rlabel { color: var(--accent); }
.radio-btn.active .rlabel::after { content: " · TX"; }

.tx .freq { color: var(--muted); font-size: 11px; }

.prepare { align-self: flex-start; font-size: 13px; }
.prompt.preview { border-color: var(--accent); border-style: dashed; }

.conn-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #3a1f1c;
  border: 1px solid var(--bad);
  color: #ffd9d3;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
}
.conn-banner span { flex: 1; }

.stt-status {
  color: var(--muted);
  font-size: 12.5px;
  padding: 2px 4px;
}

.ptt.recording { border-color: var(--bad); color: var(--bad); animation: pulse 1s infinite; }
.ptt.busy { color: var(--muted); }
.ptt.error { border-color: var(--warn); color: var(--warn); }

.prompt {
  background: var(--panel-2);
  border: 1px solid var(--warn);
  border-radius: 10px;
  padding: 12px 14px;
}
.prompt-head { display: flex; gap: 8px; align-items: baseline; }
.prompt-head b { flex: 1; }
.hints { margin: 8px 0 0; padding-left: 20px; color: var(--muted); font-size: 13px; }
#tx-input {
  width: 100%;
  margin-top: 10px;
  background: #0d1117;
  color: var(--ink);
  border: 1px solid #2a3646;
  border-radius: 8px;
  padding: 10px;
  font: 15px var(--mono);
  resize: vertical;
}
.prompt-actions { display: flex; gap: 10px; margin-top: 10px; }

.transcript {
  flex: 1;
  overflow-y: auto;
  background: var(--panel);
  border-radius: 10px;
  padding: 12px;
  font-family: var(--mono);
  font-size: 13.5px;
}
.tx {
  padding: 8px 10px;
  border-radius: 8px;
  margin-bottom: 8px;
  background: var(--panel-2);
  border-left: 3px solid var(--muted);
}
.tx.self { border-left-color: var(--accent); }
.tx.onair { outline: 1px solid var(--accent); animation: pulse 1s infinite; }
.tx .who { color: var(--muted); font-size: 12px; display: flex; gap: 8px; }
.tx .lang { border: 1px solid; border-radius: 4px; padding: 0 5px; font-size: 10px; }
.tx .lang.fr { color: var(--fr); border-color: var(--fr); }
.tx .lang.en { color: var(--en); border-color: var(--en); }
@keyframes pulse { 50% { outline-color: transparent; } }

.grade { margin-top: 8px; border-top: 1px dashed #2a3646; padding-top: 8px; }
.grade .score { font-weight: 700; }
.grade .score.good { color: var(--ok); }
.grade .score.mid { color: var(--warn); }
.grade .score.poor { color: var(--bad); }
.grade ul { margin: 6px 0 0; padding: 0; list-style: none; }
.grade li { display: flex; gap: 6px; align-items: baseline; }
.grade li .st { width: 16px; }
.grade li.present .st { color: var(--ok); }
.grade li.partial .st { color: var(--warn); }
.grade li.missing .st { color: var(--bad); }
.grade li .expect { color: var(--muted); font-size: 12px; }
.ideal { margin-top: 6px; color: var(--muted); font-size: 12.5px; }
.ideal b { color: var(--ink); }
.src { color: var(--muted); font-size: 11px; float: right; }

.sysmsg { color: var(--muted); font-style: italic; margin: 6px 2px; font-size: 13px; }

/* --- debrief --- */
.dcall {
  background: var(--panel);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
}
.dcall h4 { margin: 0 0 6px; }
.dcall .said { font-family: var(--mono); font-size: 13.5px; }
.dcall .missed { color: var(--bad); font-weight: 600; }

@media (max-width: 900px) {
  .sim-layout { grid-template-columns: 1fr; grid-template-rows: 320px 1fr; height: auto; }
}