/* Fly Kai Tak blog. Same night-cockpit design system as the sim: dark glass panels, phosphor numerals,
   Kai Tak checkerboard orange as the one accent, B612 / B612 Mono / Noto Serif TC. */
:root{
  --ink:#0a1115; --panel:rgba(9,16,20,.86); --panel-2:#101a1f; --line:#27373e; --line-2:#3a5058;
  --text:#e9eee8; --muted:#93a6a2; --checker:#e8571f; --checker-ink:#2a1206; --paper:#f5efe3;
  --jade-deep:#005f4b; --jade:#1b7d52; --jade-bright:#2fa36d; --jade-pale:#cfe6d9;
  --phosphor:#8ff5a8; --amber:#ffb94a; --alarm:#ff5b4f; --magenta:#ff5ad9; --coral:#ff6b5e; --cyan:#3bf0ff;
  --f-ui:"B612",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-num:"B612 Mono",ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --f-han:"Noto Serif TC","Songti TC","PMingLiU","SimSun",serif;
  --wrap:1120px; --read:680px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{background:var(--ink);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ink);color:var(--text);font-family:var(--f-ui);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--phosphor);text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--line-2)}
a:hover{text-decoration-color:var(--checker)}
a:focus-visible,button:focus-visible{outline:2px solid var(--checker);outline-offset:2px}
::selection{background:var(--checker);color:var(--checker-ink)}
.skip{position:absolute;left:-9999px;top:8px;background:var(--paper);color:var(--ink);padding:8px 12px;border-radius:3px;z-index:10}
.skip:focus{left:8px}

/* Checkerboard band: the site's signature edge */
.checkband{height:10px;background:repeating-conic-gradient(var(--checker) 0 25%,var(--paper) 0 50%) 0 0/20px 20px;border-bottom:3px solid var(--jade)}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* Site header */
.site{background:var(--ink);border-bottom:1px solid var(--line)}
.site .wrap{display:flex;align-items:center;gap:16px;min-height:60px;flex-wrap:wrap}
.brandlink{display:inline-flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;font-weight:700;letter-spacing:.01em}
.brandlink img{width:32px;height:32px;border-radius:6px}
.brandlink .han{font-family:var(--f-han);font-weight:900;font-size:15px;color:var(--paper);letter-spacing:.12em;margin-left:2px}
.site nav{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.site nav a,.btn{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:8px 14px;border:1px solid var(--line-2);border-radius:3px;background:var(--panel-2);color:var(--text);text-decoration:none;font-family:var(--f-num);font-size:12px;letter-spacing:.12em;text-transform:uppercase;cursor:pointer}
.site nav a:hover,.btn:hover{border-color:var(--paper)}
.site nav a[aria-current=page]{border-color:var(--jade-bright);color:var(--phosphor)}
.btn.go{background:var(--checker);border-color:var(--checker);color:var(--checker-ink);font-family:var(--f-ui);font-weight:700;letter-spacing:.08em}
.btn.go:hover{filter:brightness(1.08)}

/* Blog index header image (rendered from the design guide: checkerboard, IGS path, aerial of Kai Tak) */
.masthead{position:relative;background:#0a1115;border-bottom:1px solid var(--line);overflow:hidden}
.masthead img.art{width:100%;height:clamp(220px,34vw,400px);object-fit:cover;object-position:right center}
.masthead .copy{position:absolute;inset:0;display:flex;align-items:center}
.masthead .copy .wrap{padding-top:0}
.eyebrow{font-family:var(--f-num);font-size:12px;letter-spacing:.22em;color:var(--coral);text-transform:uppercase;margin:0 0 10px}
.masthead h1{font-size:clamp(34px,6vw,64px);line-height:1.04;letter-spacing:-.01em;margin:0 0 12px;max-width:14ch}
.masthead p.lede{margin:0;max-width:34ch;color:var(--text);font-size:clamp(15px,2vw,19px);line-height:1.5}

main{display:block}
.section{padding:44px 0 56px}
.section h2.label{font-family:var(--f-num);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);font-weight:400;margin:0 0 20px}

/* Post cards */
.cards{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(310px,1fr))}
.pcard{display:flex;flex-direction:column;background:var(--panel-2);border:1px solid var(--line);border-radius:3px;overflow:hidden;color:inherit;text-decoration:none;transition:border-color .15s,transform .15s}
.pcard:hover{border-color:var(--jade-bright);transform:translateY(-2px)}
.pcard img{width:100%;aspect-ratio:1200/630;object-fit:cover;border-bottom:3px solid var(--jade)}
.pcard .body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.pcard .meta{font-family:var(--f-num);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.pcard h3{font-size:21px;line-height:1.25;margin:0;color:var(--text)}
.pcard p{margin:0;color:var(--muted);font-size:15px;line-height:1.55}
.pcard .more{margin-top:auto;font-family:var(--f-num);font-size:12px;letter-spacing:.14em;color:var(--phosphor);text-transform:uppercase}
.empty{color:var(--muted)}

/* Post */
.crumbs{font-family:var(--f-num);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding:26px 0 0}
.crumbs a{color:var(--muted);text-decoration-color:var(--line-2)}
.post-head{padding:14px 0 6px;max-width:var(--read)}
.post-head h1{font-size:clamp(32px,5.2vw,52px);line-height:1.08;letter-spacing:-.012em;margin:6px 0 14px}
.post-head .dek{font-size:19px;line-height:1.55;color:var(--text);margin:0 0 16px}
.byline{display:flex;flex-wrap:wrap;gap:6px 16px;font-family:var(--f-num);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.hero{margin:26px 0 8px}
.hero img{width:100%;border:1px solid var(--line);border-radius:3px;border-bottom:3px solid var(--jade)}
figcaption{font-family:var(--f-num);font-size:11.5px;letter-spacing:.06em;color:var(--muted);line-height:1.6;margin-top:10px}
.prose{padding-bottom:12px}
.prose>*{max-width:var(--read)}
.prose>figure.wide,.prose>.readouts{max-width:none}
.prose h2{font-size:28px;line-height:1.2;margin:46px 0 12px;letter-spacing:-.005em}
.prose h3{font-size:20px;margin:30px 0 8px}
.prose p{margin:0 0 20px}
.prose ul,.prose ol{margin:0 0 22px;padding-left:22px}
.prose li{margin:0 0 8px}
.prose strong{color:var(--paper)}
.prose kbd{font-family:var(--f-num);font-size:12px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:3px;padding:2px 6px;white-space:nowrap;background:var(--panel-2)}
.prose figure{margin:30px 0}
.prose figure img{width:100%;border:1px solid var(--line);border-radius:3px}
.prose blockquote{margin:26px 0;padding:4px 0 4px 18px;border-left:3px solid var(--checker);color:var(--paper)}

/* Readout panel: the 47° RIGHT TURN card, reused for key numbers */
.readouts{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:28px 0}
.readout{background:var(--panel-2);border:1px solid var(--line-2);border-radius:3px;padding:14px 16px;display:flex;align-items:center;gap:14px}
.readout b{white-space:nowrap;font-family:var(--f-num);font-weight:700;font-size:30px;line-height:1;color:var(--phosphor);font-variant-numeric:tabular-nums}
.readout span{display:flex;flex-direction:column;gap:4px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;line-height:1.3}
.readout span i{font-style:normal;font-family:var(--f-num);font-size:11px;letter-spacing:.12em;color:var(--cyan)}

.callout{background:var(--panel-2);border:1px solid var(--line-2);border-left:4px solid var(--checker);border-radius:3px;padding:16px 20px;margin:28px 0}
.callout p{margin:0 0 10px}.callout p:last-child{margin:0}
.callout .eyebrow{margin-bottom:6px}

/* Share bar */
.share{max-width:var(--read);margin:34px 0;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.share h2{font-family:var(--f-num);font-weight:400;font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.share ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.share a,.share button{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:8px 14px;border:1px solid var(--line-2);border-radius:3px;background:var(--panel-2);color:var(--text);text-decoration:none;font-family:var(--f-num);font-size:12px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
.share a:hover,.share button:hover{border-color:var(--paper)}
.share svg{width:15px;height:15px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.share .done{border-color:var(--jade-bright);color:var(--phosphor)}
.share--top{margin:22px 0 0;padding:14px 0;border-bottom:0}
.share[hidden],.share li[hidden]{display:none}

/* CTA */
.cta{max-width:var(--read);margin:34px 0;background:var(--panel-2);border:1px solid var(--line-2);border-radius:3px;display:grid;grid-template-columns:auto 1fr;gap:6px 18px;align-items:center;padding:20px}
.cta .han{grid-row:span 2;font-family:var(--f-han);font-weight:900;font-size:34px;line-height:1.05;color:var(--paper);letter-spacing:.04em;writing-mode:vertical-rl}
.cta strong{font-size:20px;color:var(--text)}
.cta p{margin:0;color:var(--muted);font-size:15px;line-height:1.5}
.cta .btn{grid-column:2;justify-self:start;margin-top:8px}

.more-posts{margin-top:46px}

/* Footer */
.foot{border-top:1px solid var(--line);padding:30px 0 44px;color:var(--muted);font-family:var(--f-num);font-size:11.5px;line-height:1.9;letter-spacing:.02em}
.foot a{color:var(--paper);text-decoration-color:var(--line-2)}
.foot .row{display:flex;flex-wrap:wrap;gap:6px 22px;justify-content:space-between}

@media (max-width:640px){
  body{font-size:16.5px}
  .masthead .copy{align-items:flex-end;padding-bottom:20px}
  .masthead h1{max-width:none}
  .masthead p.lede{max-width:none}
  .prose h2{font-size:24px}
  .cta{grid-template-columns:1fr}
  .cta .han{writing-mode:horizontal-tb;grid-row:auto;font-size:26px;letter-spacing:.2em}
  .cta .btn{grid-column:1}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pcard{transition:none}.pcard:hover{transform:none}}
@media print{.site nav,.share,.cta{display:none}body{background:#fff;color:#000}}

/* English / Cantonese toggle */
.site nav .langtog{display:inline-flex;align-items:stretch;gap:0;min-height:40px;padding:0;border:1px solid var(--line-2);border-radius:3px;background:var(--panel-2);color:var(--muted);font-family:var(--f-num);font-size:12px;letter-spacing:.12em;cursor:pointer;overflow:hidden}
.site nav .langtog:hover{border-color:var(--paper)}
.langtog span{display:inline-flex;align-items:center;padding:0 12px}
.langtog span.on{background:var(--checker);color:var(--checker-ink)}
.langtog span[data-l=zh]{font-family:var(--f-han);font-weight:900;letter-spacing:0}
.prose[data-lang=zh]{display:none}
html[data-lang=zh] .prose[data-lang=zh]{display:block}
html[data-lang=zh] .prose[data-lang=en]{display:none}
html[data-lang=zh] body{font-family:var(--f-ui),"PingFang HK","Microsoft JhengHei","Noto Sans TC","Heiti TC",sans-serif}
html[data-lang=zh] .prose,html[data-lang=zh] .post-head h1,html[data-lang=zh] .dek{line-height:1.8}