:root {
  --ink: #2a2f36;
  --muted: #646b74;
  --bg: #e7e4dc;
  --card: #faf8f2;
  --line: #d6d0c2;
  --panel: #dcd8ce;
  --tile: #f3f1ea;
  --green: #1d8a4a;
  --amber: #b9770e;
  --red: #c23b32;
  --pink: #d43f86;
  --teal: #1f8f84;
  --panelH: 178px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: var(--bg); color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; user-select: none; }
.hidden { display: none !important; }
kbd { display: inline-block; min-width: 1.4em; padding: 0 4px; border: 1px solid #c4bdad; border-bottom-width: 2px; border-radius: 4px;
  background: #fffdf7; font: 600 11px/1.5 ui-monospace, Consolas, monospace; text-align: center; color: var(--ink); }

#stage { position: fixed; left: 0; top: 0; right: 0; bottom: var(--panelH); }
#view, #hud { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
#speedTag { position: absolute; top: 10px; right: 14px; background: rgba(250,248,242,.9); border: 1px solid var(--line);
  border-radius: 6px; padding: 2px 10px; font: 700 13px ui-monospace, Consolas, monospace; color: var(--amber); }

/* ---------- instrument panel ---------- */
#panel { position: fixed; left: 0; right: 0; bottom: 0; height: var(--panelH); background: var(--panel);
  border-top: 3px solid #b8b2a4; display: flex; gap: 8px; padding: 8px 10px; align-items: stretch; overflow: hidden; }
.blk { background: var(--tile); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px; min-width: 0; }
.lbl { font-size: 10px; letter-spacing: 1.5px; color: var(--muted); font-weight: 700; }
.sub { font-size: 12px; color: var(--muted); }
.num { font: 800 20px ui-monospace, Consolas, monospace; }
button { font: 700 13px system-ui, sans-serif; border: 1px solid #bdb6a6; background: #fffdf8; color: var(--ink);
  border-radius: 7px; padding: 6px 12px; cursor: pointer; }
button:hover { background: #fff; border-color: #9d9686; }
button.on { background: #dff3e6; border-color: var(--green); color: var(--green); }
button.primary { background: var(--teal); border-color: var(--teal); color: #fff; padding: 10px 28px; font-size: 16px; }
button.primary:hover { background: #18786f; }

.apblk { width: 170px; }
.apbtn { width: 100%; display: flex; flex-direction: column; align-items: center; padding: 10px 8px; border-width: 2px; }
.apbtn .big { font-size: 16px; letter-spacing: 1px; }
.apbtn #apState { font: 700 12px ui-monospace, Consolas, monospace; color: var(--muted); }
.apbtn.on { background: #d9f1e2; border-color: var(--green); }
.apbtn.on #apState { color: var(--green); }
.row2 { display: flex; gap: 6px; width: 100%; }
.row2 button { flex: 1; padding: 6px 4px; }
#bToga.armed { background: #fdebd2; border-color: var(--amber); color: var(--amber); }

.engblk { width: 120px; }
.eng { display: flex; gap: 10px; height: 70px; }
.bar { width: 16px; height: 100%; background: #e2ded3; border: 1px solid #c9c2b2; border-radius: 4px; position: relative; overflow: hidden; }
.bar i { position: absolute; left: 0; right: 0; bottom: 0; background: var(--teal); height: 30%; }
.tag { font: 700 11px ui-monospace, Consolas, monospace; padding: 1px 6px; border-radius: 4px; border: 1px solid var(--line); }
.tag.off { color: #a39c8c; }
.tag.on { color: #fff; background: var(--amber); border-color: var(--amber); }
.tag.go { color: #fff; background: var(--green); border-color: var(--green); }

.flapblk { width: 190px; }
.flaps { display: flex; gap: 4px; }
.flaps span { font: 700 11px ui-monospace, Consolas, monospace; padding: 2px 5px; border-radius: 4px; color: #a39c8c; border: 1px solid transparent; }
.flaps span.sel { color: var(--ink); border-color: var(--ink); }
.flaps span.at { background: var(--teal); color: #fff; }
.flapbar { width: 100%; height: 8px; background: #e2ded3; border-radius: 4px; overflow: hidden; }
.flapbar i { display: block; height: 100%; width: 0; background: var(--teal); }

.gearblk { width: 110px; }
.gearlights { display: grid; grid-template-columns: repeat(3, 18px); gap: 5px; padding: 2px; }
.gearlights i { width: 18px; height: 18px; border-radius: 50%; background: #d8d3c7; border: 1px solid #bfb8a8; }
.gearlights i:nth-child(1) { grid-column: 2; }
.gearlights i:nth-child(2) { grid-column: 1; grid-row: 2; }
.gearlights i:nth-child(3) { grid-column: 3; grid-row: 2; }
.gearlights i.down { background: #2ea35c; border-color: #1d7a42; }
.gearlights i.transit { background: var(--red); border-color: #8f2a23; }

.brkblk { width: 110px; }
.ndblk { padding: 4px; flex: 0 0 auto; }
#nd { width: 260px; height: 170px; border-radius: 6px; display: block; max-height: 100%; }
.keyblk { flex: 1; align-items: flex-start; font-size: 12px; color: var(--muted); gap: 3px; min-width: 220px; }
@media (max-width: 1250px) { .keyblk { display: none; } }
@media (max-width: 1000px) { .ndblk { display: none; } }

/* ---------- overlays ---------- */
.overlay { position: fixed; inset: 0; background: rgba(214, 216, 214, .72); display: flex; align-items: center; justify-content: center;
  z-index: 10; overflow-y: auto; padding: 16px; backdrop-filter: blur(3px); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px 28px; width: min(760px, 100%);
  box-shadow: 0 12px 40px rgba(60, 60, 50, .18); max-height: 100%; overflow-y: auto; }
.card.small { width: min(380px, 100%); text-align: center; }
h1 { margin: 0 0 4px; font-size: 38px; letter-spacing: 1px; color: var(--teal); }
h2 { margin: 4px 0 6px; }
h3 { margin: 16px 0 6px; font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); }
.lead { margin: 4px 0; line-height: 1.45; }
.muted { color: var(--muted); font-size: 13px; }
.choices { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.choices.three { grid-template-columns: repeat(3, 1fr); }
.choice { text-align: left; padding: 10px 12px; border-radius: 10px; border: 2px solid var(--line); background: #fff; cursor: pointer; font-weight: 400; }
.choice b { display: block; font-size: 15px; margin-bottom: 2px; }
.choice span { font-size: 12px; color: var(--muted); line-height: 1.35; display: block; }
.choice.sel { border-color: var(--teal); background: #e6f4f2; }
.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 16px; font-size: 14px; }
.opts label { display: flex; gap: 8px; align-items: center; cursor: pointer; }
.go { margin-top: 18px; display: flex; gap: 10px; justify-content: center; }
.how { margin-top: 14px; font-size: 14px; }
.how summary { cursor: pointer; font-weight: 700; color: var(--teal); }
.how li { margin: 5px 0; line-height: 1.4; }
@media (max-width: 640px) { .choices, .choices.three, .opts { grid-template-columns: 1fr; } }

.kind { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; font-weight: 800; color: var(--muted); }
.kind.good { color: var(--green); } .kind.bad { color: var(--red); } .kind.ga { color: var(--amber); }
.grade { font: 900 54px/1 system-ui, sans-serif; color: var(--teal); margin: 6px 0; }
.grade small { font-size: 20px; color: var(--muted); font-weight: 700; }
#endRows { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 6px; }
#endRows td { padding: 5px 6px; border-bottom: 1px solid #ebe6da; }
#endRows td.pts { text-align: right; font-weight: 700; white-space: nowrap; font-family: ui-monospace, Consolas, monospace; }
#endRows td.v { color: var(--muted); }