/* Shared tokens, chart styling and components for the JFK weather page. Variants add their own file. */
:root {
  --cat-vfr: #1f9d55; --cat-mvfr: #2a78d6; --cat-ifr: #d9480f; --cat-lifr: #a21caf;
  --vz-surface: var(--white); --vz-text: var(--ink); --vz-text2: var(--body-text); --vz-muted: var(--body-text-soft);
  --vz-grid: #e3eaea; --vz-axis: #b3c1c2;
  --acc: var(--teal); --acc-soft: #9dc1cd; --warm: #c8581f; --cool: #1a5e78;
  --t0: #e9f2f4; --t1: #cfe3e8; --t2: #a9cdd7; --t3: #78aebf; --t4: #4a8da6; --t5: #1f6684; --t6: #123f52;
  --g0: #f3f1ea; --g1: #f1e6cc; --g2: #e6cf8f; --g3: #d2ae52; --g4: #b08430; --g5: #8a6624; --g6: #5e4418;
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --sky0: #e6eef0; --sky1: #bfd3d9; --sky2: #88aab5; --sky3: #4f7787;
  --rs0: #bcd7df; --rs1: #6fa6b8; --rs2: #2b7792; --rs3: #0f3d52; --rwy: #b08430;
  --f-calm: #c4cdce; --sun: #c3a550; --daylight: #f1e6cc;
  --tip-bg: #16262a; --tip-fg: #f5f7f7;
  --ring: rgba(26, 94, 120, .5);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --cat-vfr: #2fa062; --cat-mvfr: #4d8fe0; --cat-ifr: #e0572b; --cat-lifr: #c055cb;
    --vz-grid: #263a3d; --vz-axis: #3b5256; --acc-soft: #2e5f72; --warm: #e0824f; --cool: #5cadc9;
    --t0: #183139; --t1: #1f4452; --t2: #28596b; --t3: #36788f; --t4: #53a0b8; --t5: #8cc7da; --t6: #cfeaf2;
    --g0: #231f14; --g1: #332a17; --g2: #50411f; --g3: #7c6329; --g4: #b08c3a; --g5: #dcc07a; --g6: #f3e6bd;
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --sky0: #1c3036; --sky1: #2e5360; --sky2: #4c7f90; --sky3: #86b4c3;
    --rs0: #3a6877; --rs1: #5d9db3; --rs2: #93c8dc; --rs3: #d5eff7; --rwy: #e0c37f;
    --f-calm: #3a4a4d; --sun: #e0c37f; --daylight: #3a3118; --tip-bg: #eef3f2; --tip-fg: #101b1d;
    --ring: rgba(92, 173, 201, .6);
  }
}
:root[data-theme="dark"] {
  --cat-vfr: #2fa062; --cat-mvfr: #4d8fe0; --cat-ifr: #e0572b; --cat-lifr: #c055cb;
  --vz-grid: #263a3d; --vz-axis: #3b5256; --acc-soft: #2e5f72; --warm: #e0824f; --cool: #5cadc9;
  --t0: #183139; --t1: #1f4452; --t2: #28596b; --t3: #36788f; --t4: #53a0b8; --t5: #8cc7da; --t6: #cfeaf2;
  --g0: #231f14; --g1: #332a17; --g2: #50411f; --g3: #7c6329; --g4: #b08c3a; --g5: #dcc07a; --g6: #f3e6bd;
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --sky0: #1c3036; --sky1: #2e5360; --sky2: #4c7f90; --sky3: #86b4c3;
  --rs0: #3a6877; --rs1: #5d9db3; --rs2: #93c8dc; --rs3: #d5eff7; --rwy: #e0c37f;
  --f-calm: #3a4a4d; --sun: #e0c37f; --daylight: #3a3118; --tip-bg: #eef3f2; --tip-fg: #101b1d;
  --ring: rgba(92, 173, 201, .6);
}

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body.jfk { -webkit-text-size-adjust: 100%; }
.jfk :focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 3px; }
.skip { position: absolute; left: -999px; }

/* ------------------------------------------------ preview bar additions */
.preview-nav .container { display: flex; align-items: center; gap: 6px; min-height: 40px; }
.pv-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; flex: 1; -webkit-overflow-scrolling: touch; }
.pv-tabs::-webkit-scrollbar { display: none; }
.preview-nav a { font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 500; letter-spacing: .02em; color: rgba(245, 247, 247, .72); padding: 8px 12px; border-radius: 3px; white-space: nowrap; }
.preview-nav a.current { color: #fff; background: rgba(255, 255, 255, .16); }
.pv-tools { margin-left: auto; }
.pv-btn { display: inline-flex; gap: 8px; align-items: center; background: rgba(255, 255, 255, .1); color: #fff; border: 0; border-radius: 3px; padding: 7px 10px; font: 500 11.5px 'IBM Plex Mono', monospace; cursor: pointer; min-height: 32px; }
.pv-btn:hover { background: rgba(255, 255, 255, .18); }
.pv-ic { width: 12px; height: 12px; border-radius: 50%; background: linear-gradient(90deg, #fff 50%, #1b2c30 50%); border: 1px solid rgba(255, 255, 255, .7); }
@media (max-width: 560px) { .pv-lab { display: none; } .preview-nav .container > span { display: none; } }

/* ------------------------------------------------ footer link */
.nl-link { display: inline-block; background: var(--gold-bright); color: #1a1405; font-weight: 700; font-size: 13.5px; padding: 11px 18px; border-radius: 3px; }
.nl-link:hover { background: #d4b960; }

/* ------------------------------------------------ chart svg */
.vz-narrow { display: none; }
@media (max-width: 720px) { .vz-wide { display: none; } .vz-narrow { display: block; } }
.vz { display: block; width: 100%; height: auto; overflow: visible; }
.vz .tick { font: 500 11px 'IBM Plex Mono', monospace; fill: var(--vz-muted); }
.vz .val { font: 600 12px 'Public Sans', sans-serif; fill: var(--vz-text2); }
.vz .val.hi { fill: var(--vz-text); font-weight: 700; }
.vz .lbl { font: 600 12.5px 'Public Sans', sans-serif; fill: var(--vz-text2); }
.vz .dlabel { font: 600 12px 'Public Sans', sans-serif; fill: var(--vz-text); }
.vz .cell { font: 600 10.5px 'IBM Plex Mono', monospace; fill: var(--vz-text); pointer-events: none; }
.vz .cell.on-dark { fill: #fff; }
:root[data-theme="dark"] .vz .cell.on-dark { fill: #101b1d; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .vz .cell.on-dark { fill: #101b1d; } }
.vz .grid { stroke: var(--vz-grid); stroke-width: 1; }
.vz .axis { stroke: var(--vz-axis); stroke-width: 1.5; }
.vz .meanline { stroke: var(--vz-muted); stroke-width: 1.25; stroke-dasharray: 4 4; }
.vz .freeze { stroke: var(--cool); stroke-width: 1.25; stroke-dasharray: 3 4; opacity: .7; }
.vz .mk { cursor: default; }
.vz .mk:hover { stroke: var(--vz-text); stroke-width: 1.5; }
.vz .hit { fill: transparent; }
.vz .c-acc { fill: var(--acc-soft); }
.vz .c-acc.on { fill: var(--acc); }
.vz .peak { fill: none; stroke: var(--vz-text); stroke-width: 2; pointer-events: none; }
.vz .ln { fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.vz .ln.thick { stroke-width: 3.5; }
.vz .ln.l-warm { stroke: var(--warm); } .vz .ln.l-cool { stroke: var(--cool); } .vz .ln.l-acc { stroke: var(--acc); } .vz .ln.l-sun { stroke: var(--sun); stroke-width: 2.5; }
.vz .dot { stroke: var(--vz-surface); stroke-width: 2; }
.vz .dot.d-warm { fill: var(--warm); } .vz .dot.d-cool { fill: var(--cool); } .vz .dot.l-acc { fill: var(--acc); }
.vz .band { opacity: .16; } .vz .b-warm { fill: var(--warm); } .vz .b-cool { fill: var(--cool); }
.vz .area.l-acc { fill: var(--acc); opacity: .14; stroke: none; }
.vz .daylight { fill: var(--daylight); }
.vz .ln.s-jfk, .vz .ln.s-lga, .vz .ln.s-ewr { stroke-width: 2.5; }
.vz .ln.s-jfk { stroke: var(--s1); } .vz .ln.s-lga { stroke: var(--s2); } .vz .ln.s-ewr { stroke: var(--s3); }
.vz .dot.s-jfk { fill: var(--s1); } .vz .dot.s-lga { fill: var(--s2); } .vz .dot.s-ewr { fill: var(--s3); }
.vz .ring { fill: none; stroke: var(--vz-grid); stroke-width: 1; }
.vz .rwy { stroke: var(--rwy); stroke-width: 2; stroke-dasharray: 6 4; }
.vz .rwy-t, .vz .rw-t { font: 700 11.5px 'IBM Plex Mono', monospace; fill: var(--vz-text); paint-order: stroke; stroke: var(--vz-surface); stroke-width: 4px; stroke-linejoin: round; }
.vz .card-t { font: 700 12px 'IBM Plex Mono', monospace; fill: var(--vz-text); }
.vz .rw-base { stroke: var(--vz-axis); stroke-width: 12; stroke-linecap: butt; opacity: .55; }
.vz .rw { stroke-width: 8; stroke-linecap: butt; cursor: default; }
.vz .scale { stroke: var(--vz-text2); stroke-width: 2; }
.vz .north { fill: var(--vz-text2); }

/* mapped fills: .k-* carry --k so one class colours svg marks and html swatches */
.k-vfr { --k: var(--cat-vfr); } .k-mvfr { --k: var(--cat-mvfr); } .k-ifr { --k: var(--cat-ifr); } .k-lifr { --k: var(--cat-lifr); }
.k-sky0 { --k: var(--sky0); } .k-sky1 { --k: var(--sky1); } .k-sky2 { --k: var(--sky2); } .k-sky3 { --k: var(--sky3); }
.k-rs0 { --k: var(--rs0); } .k-rs1 { --k: var(--rs1); } .k-rs2 { --k: var(--rs2); } .k-rs3 { --k: var(--rs3); }
.k-f31 { --k: var(--s1); } .k-f22 { --k: var(--s2); } .k-f04 { --k: var(--s3); } .k-f13 { --k: var(--s4); } .k-fcalm { --k: var(--f-calm); }
.s-warm { --k: var(--warm); } .s-cool { --k: var(--cool); } .s-jfk { --k: var(--s1); } .s-lga { --k: var(--s2); } .s-ewr { --k: var(--s3); } .k-rwy { --k: var(--rwy); }
.vz .mk[class*="k-"] { fill: var(--k); }
.vz .rs0 { fill: var(--rs0); } .vz .rs1 { fill: var(--rs1); } .vz .rs2 { fill: var(--rs2); } .vz .rs3 { fill: var(--rs3); }
.vz .t0 { fill: var(--t0); } .vz .t1 { fill: var(--t1); } .vz .t2 { fill: var(--t2); } .vz .t3 { fill: var(--t3); } .vz .t4 { fill: var(--t4); } .vz .t5 { fill: var(--t5); } .vz .t6 { fill: var(--t6); }
.vz .g0 { fill: var(--g0); } .vz .g1 { fill: var(--g1); } .vz .g2 { fill: var(--g2); } .vz .g3 { fill: var(--g3); } .vz .g4 { fill: var(--g4); } .vz .g5 { fill: var(--g5); } .vz .g6 { fill: var(--g6); }
.vz .rw.g0 { stroke: var(--g1); } .vz .rw.g1 { stroke: var(--g2); } .vz .rw.g2 { stroke: var(--g2); } .vz .rw.g3 { stroke: var(--g3); } .vz .rw.g4 { stroke: var(--g4); } .vz .rw.g5 { stroke: var(--g5); } .vz .rw.g6 { stroke: var(--g6); }
.vz .rw.g1, .vz .rw.g2, .vz .rw.g3, .vz .rw.g4, .vz .rw.g5, .vz .rw.g6, .vz .rw.g0 { fill: none; }
:root:not([data-theme="dark"]) .vz .rw.g5, :root:not([data-theme="dark"]) .vz .rw.g6 { stroke: var(--g6); }

/* legend + swatches */
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; list-style: none; padding: 0; margin: 12px 0 0; font: 500 12.5px 'Public Sans', sans-serif; color: var(--vz-text2); }
.legend li { display: inline-flex; align-items: center; gap: 7px; }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; background: var(--k); flex: none; }
.heat-legend { display: flex; align-items: center; gap: 9px; margin-top: 12px; font: 500 11.5px 'IBM Plex Mono', monospace; color: var(--vz-muted); }
.heat-legend .ramp { display: inline-flex; border-radius: 3px; overflow: hidden; }
.heat-legend .ramp i { width: 28px; height: 11px; }
.heat-legend .t0 { background: var(--t0); } .heat-legend .t1 { background: var(--t1); } .heat-legend .t2 { background: var(--t2); } .heat-legend .t3 { background: var(--t3); } .heat-legend .t4 { background: var(--t4); } .heat-legend .t5 { background: var(--t5); } .heat-legend .t6 { background: var(--t6); }
.heat-legend .g0 { background: var(--g0); } .heat-legend .g1 { background: var(--g1); } .heat-legend .g2 { background: var(--g2); } .heat-legend .g3 { background: var(--g3); } .heat-legend .g4 { background: var(--g4); } .heat-legend .g5 { background: var(--g5); } .heat-legend .g6 { background: var(--g6); }

/* ------------------------------------------------ figure card */
.fig { margin: 0 0 26px; padding: 20px 22px 18px; background: var(--vz-surface); border: 1px solid var(--line); border-radius: 8px; }
.fig-title { font-family: 'Fraunces', Georgia, serif; font-size: 20px; line-height: 1.25; margin: 0 0 4px; }
.fig-sub { margin: 0 0 14px; font-size: 14px; color: var(--body-text-soft); max-width: 70ch; }
.fig-note { margin: 12px 0 0; font-size: 12.5px; color: var(--body-text-soft); }
.fig-body { position: relative; }
.fig-data { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 10px; }
.fig-data summary { cursor: pointer; font: 600 13px 'Public Sans', sans-serif; color: var(--teal); padding: 4px 0; list-style: none; }
.fig-data summary::-webkit-details-marker { display: none; }
.fig-data summary::before { content: '+'; display: inline-block; width: 18px; font: 600 15px 'IBM Plex Mono', monospace; }
.fig-data[open] summary::before { content: '\2212'; }
.tbl-wrap { overflow-x: auto; margin-top: 8px; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 420px; }
.data-table caption { text-align: left; font: 500 11.5px 'IBM Plex Mono', monospace; color: var(--body-text-soft); padding-bottom: 6px; }
.data-table th, .data-table td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.data-table thead th { font-weight: 700; color: var(--ink); background: var(--paper-alt); position: sticky; top: 0; }
.data-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table tbody th { font-weight: 600; color: var(--ink); }

/* ------------------------------------------------ controls */
.seg { display: inline-flex; gap: 2px; padding: 3px; background: var(--paper-alt); border-radius: 9px; max-width: 100%; overflow-x: auto; scrollbar-width: none; margin-bottom: 14px; }
.seg::-webkit-scrollbar { display: none; }
.seg-wrap { flex-wrap: wrap; overflow: visible; }
.seg-b { border: 0; background: transparent; color: var(--body-text); font: 600 13px 'Public Sans', sans-serif; padding: 8px 12px; border-radius: 7px; cursor: pointer; min-height: 38px; white-space: nowrap; }
.seg-b:hover { color: var(--ink); }
.seg-b.on { background: var(--white); color: var(--ink); box-shadow: 0 1px 2px rgba(20, 40, 45, .15), 0 0 0 1px var(--line); }
.seg-sm .seg-b { padding: 5px 9px; min-height: 30px; font-size: 12.5px; }
.seg-sm { margin: 0; }
.units { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.units::before { content: 'Units'; font: 600 11px 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: .08em; color: var(--body-text-soft); margin-right: 2px; }

.tip { position: fixed; z-index: 300; left: 0; top: 0; pointer-events: none; max-width: 260px; background: var(--tip-bg); color: var(--tip-fg); font: 500 12.5px/1.4 'Public Sans', sans-serif; padding: 8px 11px; border-radius: 6px; box-shadow: 0 8px 24px -8px rgba(0, 0, 0, .5); opacity: 0; transition: opacity .1s; }
.tip.on { opacity: 1; }

/* ------------------------------------------------ month panels */
html.js .mpanel { display: none; }
html.js .mpanel.on { display: block; }
.mpanel { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 22px; margin-bottom: 16px; }
.mp-name { font-family: 'Fraunces', serif; font-size: 28px; margin: 0; }
.mp-line { margin: 4px 0 16px; font: italic 500 18px 'Fraunces', serif; color: var(--teal); }
.mp-body { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 26px; align-items: start; }
.mp-copy p { margin: 0 0 12px; font-size: 16px; line-height: 1.65; color: var(--article-body-color); }
.mp-tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 0; }
.mp-tiles > div { background: var(--paper-alt); border-radius: 6px; padding: 10px 12px; }
.mp-tiles dt { font: 500 11px 'IBM Plex Mono', monospace; color: var(--body-text-soft); text-transform: uppercase; letter-spacing: .06em; }
.mp-tiles dd { margin: 3px 0 0; font: 700 17px 'Public Sans', sans-serif; color: var(--ink); }
@media (max-width: 760px) { .mp-body { grid-template-columns: minmax(0, 1fr); } .mpanel { padding: 18px 16px; } .mp-name { font-size: 24px; } }

/* ------------------------------------------------ stats */
.stat { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px 12px; display: flex; flex-direction: column; min-width: 0; }
.stat-k { margin: 0; font: 600 11px 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: .07em; color: var(--body-text-soft); }
.stat-v { margin: 6px 0 2px; font: 600 28px/1.1 'Fraunces', serif; color: var(--ink); }
.stat-s { margin: 0 0 8px; font-size: 13px; color: var(--body-text-soft); line-height: 1.4; }
.stat .spark { width: 100%; height: 30px; margin-top: auto; }
.spark { overflow: visible; }
.spark .ln { vector-effect: non-scaling-stroke; fill: none; stroke: var(--acc); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.spark .dot { fill: var(--acc); }

/* ------------------------------------------------ pick a date */
.pick { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 20px 22px; }
.pick-form { display: flex; flex-wrap: wrap; gap: 8px 10px; align-items: center; margin-bottom: 16px; }
.pick-l { font: 600 12px 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: .06em; color: var(--body-text-soft); }
.pick-s { font: 600 15px 'Public Sans', sans-serif; padding: 9px 12px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--ink); min-height: 42px; }
.pick-b { font: 700 13px 'Public Sans', sans-serif; padding: 10px 14px; border: 0; border-radius: 6px; background: var(--teal); color: #fff; cursor: pointer; min-height: 42px; }
.pick-b:hover { background: var(--teal-deep); }
.pick-h { margin: 0 0 12px; font: 600 22px 'Fraunces', serif; }
.pick-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; }
.pick-card { background: var(--paper-alt); border-radius: 8px; padding: 14px 16px; }
.pk-t { margin: 0 0 10px; font: 600 12px 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: .05em; color: var(--body-text-soft); }
.pk-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.pk-list li { display: grid; grid-template-columns: 112px 1fr 50px; gap: 10px; align-items: center; font-size: 14px; }
.pk-n small { display: block; font: 500 11px 'IBM Plex Mono', monospace; color: var(--body-text-soft); }
.pk-bar { height: 12px; background: var(--vz-grid); border-radius: 6px; overflow: hidden; }
.pk-bar i { display: block; height: 100%; background: var(--cat-ifr); border-radius: 6px; }
.pk-v { font: 700 14px 'Public Sans', sans-serif; text-align: right; }
.pk-dl { margin: 0; display: grid; gap: 8px; }
.pk-dl > div { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.pk-dl dt { color: var(--body-text-soft); } .pk-dl dd { margin: 0; font-weight: 700; color: var(--ink); text-align: right; }
@media (max-width: 720px) { .pick-grid { grid-template-columns: minmax(0, 1fr); } .pk-list li { grid-template-columns: 96px 1fr 46px; } .pick { padding: 16px; } }

/* ------------------------------------------------ prose components */
.records { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; }
.records li { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; display: flex; flex-direction: column; gap: 3px; }
.rc-k { font: 600 11px 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: .06em; color: var(--body-text-soft); }
.rc-v { font: 600 26px 'Fraunces', serif; color: var(--ink); }
.rc-s { font-size: 13px; color: var(--body-text-soft); }
.faq-i { border-bottom: 1px solid var(--line); }
.faq-i summary { cursor: pointer; padding: 16px 28px 16px 0; font: 600 17px/1.35 'Fraunces', serif; color: var(--ink); list-style: none; position: relative; }
.faq-i summary::-webkit-details-marker { display: none; }
.faq-i summary::after { content: '+'; position: absolute; right: 4px; top: 14px; font: 500 22px 'IBM Plex Mono', monospace; color: var(--teal); }
.faq-i[open] summary::after { content: '\2212'; }
.faq-a p { margin: 0 0 16px; font-size: 16px; line-height: 1.65; color: var(--article-body-color); max-width: 68ch; }
.plan { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.plan-col { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 20px 22px; }
.plan-col h3 { font-size: 19px; margin: 0 0 10px; }
.plan-col ul { margin: 0; padding-left: 18px; display: grid; gap: 10px; }
.plan-col li { font-size: 15.5px; line-height: 1.6; color: var(--article-body-color); }
@media (max-width: 760px) { .plan { grid-template-columns: minmax(0, 1fr); } }
.disclaimer { margin: 16px 0 0; padding: 14px 16px; background: var(--gold-tint); border-left: 4px solid var(--gold-bright); border-radius: 4px; font-size: 14.5px; line-height: 1.55; color: var(--ink); }
:root[data-theme="dark"] .disclaimer { color: var(--body-text); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .disclaimer { color: var(--body-text); } }
.method h3 { font-size: 20px; margin: 26px 0 10px; }
.method h3:first-child { margin-top: 0; }
.deflist { margin: 0; display: grid; gap: 10px; }
.deflist > div { display: grid; grid-template-columns: 180px 1fr; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.deflist dt { font-weight: 700; color: var(--ink); font-size: 15px; } .deflist dd { margin: 0; font-size: 15px; line-height: 1.6; color: var(--article-body-color); }
@media (max-width: 720px) { .deflist > div { grid-template-columns: minmax(0, 1fr); gap: 4px; } }
.limits { margin: 0; padding-left: 18px; display: grid; gap: 8px; font-size: 15px; line-height: 1.6; color: var(--article-body-color); }
.attrib { margin: 18px 0 0; font-size: 13.5px; color: var(--body-text-soft); }
.cat-explain { display: grid; gap: 8px; margin: 14px 0 0; }
.cat-explain > div { display: grid; grid-template-columns: 90px 1fr; gap: 10px; align-items: baseline; font-size: 15px; }
.cat-explain dt { font: 700 13px 'IBM Plex Mono', monospace; display: flex; align-items: center; gap: 8px; color: var(--ink); } .cat-explain dd { margin: 0; color: var(--article-body-color); }
.related { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.related li { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
.related a { font: 600 17px 'Fraunces', serif; color: var(--teal); } .related a:hover { text-decoration: underline; }
.related span { display: block; font-size: 14px; color: var(--body-text-soft); margin-top: 3px; }
.photo { margin: 0; }
.photo img { width: 100%; height: auto; border-radius: 8px; background: var(--paper-alt); }
.photo figcaption { margin-top: 8px; font-size: 12.5px; line-height: 1.5; color: var(--body-text-soft); }
.photo .credit a { text-decoration: underline; text-underline-offset: 2px; }
.heat-note { margin: 12px 0 0; font-size: 13px; color: var(--body-text-soft); min-height: 2.8em; }
.heat-wrap .vz-wide, .heat-wrap .vz-narrow { max-width: 760px; margin: 0 auto; }
.heat-wrap .vz-narrow { max-width: 420px; }
.rose-wrap { display: flex; justify-content: center; }
.rose { display: none; width: 100%; max-width: 560px; }
.rose.on { display: block; }
.rwy-wrap { max-width: 560px; margin: 0 auto; }
.eyebrow-s { font: 600 11.5px 'IBM Plex Mono', monospace; letter-spacing: .1em; text-transform: uppercase; color: var(--gold); }
@media print { .preview-nav, .utility-bar, .seg, .units, .nl-row { display: none !important; } .fig, .mpanel { break-inside: avoid; } html.js .mpanel { display: block; } details > * { display: block; } }

/* reusable always-dark stage (used by the cockpit and aerial designs) */
.stage-dark {
  --white: #101d20; --paper: #0a1214; --paper-alt: #16282c; --ink: #eef3f2; --body-text: #b9c6c7; --body-text-soft: #8ea1a3; --line: #223639;
  --teal: #5cadc9; --teal-deep: #7fc2da; --gold: #d9b96e; --gold-bright: #e0c37f; --article-body-color: #c8d4d5; --shadow: none;
  --vz-surface: #101d20; --vz-text: #eef3f2; --vz-text2: #c8d4d5; --vz-muted: #9bb0b3; --vz-grid: #213539; --vz-axis: #3b5256; --acc-soft: #2e5f72; --acc: #5cadc9; --warm: #e0824f; --cool: #5cadc9;
  --cat-vfr: #2fa062; --cat-mvfr: #4d8fe0; --cat-ifr: #e0572b; --cat-lifr: #c055cb;
  --t0: #183139; --t1: #1f4452; --t2: #28596b; --t3: #36788f; --t4: #53a0b8; --t5: #8cc7da; --t6: #cfeaf2;
  --g0: #231f14; --g1: #332a17; --g2: #50411f; --g3: #7c6329; --g4: #b08c3a; --g5: #dcc07a; --g6: #f3e6bd;
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --sky0: #1c3036; --sky1: #2e5360; --sky2: #4c7f90; --sky3: #86b4c3;
  --rs0: #3a6877; --rs1: #5d9db3; --rs2: #93c8dc; --rs3: #d5eff7; --rwy: #e0c37f; --f-calm: #3a4a4d; --sun: #e0c37f; --daylight: #3a3118;
  --tip-bg: #eef3f2; --tip-fg: #101b1d; --amber: #f2b441; --phos: #54e08f;
  color: var(--body-text);
}
.stage-dark .vz .cell.on-dark { fill: #101b1d; }
.stage-dark a { color: var(--teal-deep); }
.stage-dark .seg { background: #0d191c; border: 1px solid var(--line); }
.stage-dark .seg-b { color: var(--body-text); }
.stage-dark .seg-b.on { background: #1c3a42; color: #fff; box-shadow: inset 0 0 0 1px #3f7587; }
.stage-dark .seg-b:hover { color: #fff; }
.stage-dark .fig, .stage-dark .pick, .stage-dark .plan-col, .stage-dark .records li, .stage-dark .related li { background: rgba(13, 25, 28, .86); border-color: var(--line); }
.stage-dark .fig-title { color: #fff; }
.stage-dark .data-table thead th { background: #16282c; color: #fff; }
.stage-dark .pick-s { background: #0a1214; color: #fff; border-color: #2c474c; }
.stage-dark .pick-b { background: #1c6b86; }
.stage-dark .pick-card { background: #101d20; border: 1px solid var(--line); }
.stage-dark .pk-bar { background: #1d3236; }
.stage-dark .disclaimer { background: #2a2312; border-left-color: var(--amber); color: #eadfc3; }
.stage-dark .faq-i summary, .stage-dark .method h3, .stage-dark .deflist dt, .stage-dark .plan-col h3, .stage-dark .rc-v { color: #fff; }
.stage-dark .rc-k, .stage-dark .photo figcaption, .stage-dark .heat-legend, .stage-dark .fig-note, .stage-dark .heat-note { color: var(--body-text-soft); }