/*
 * ── air: the calm, roomy look ────────────────────────────────────────────
 * v288. One dark canvas, one lime accent, big quiet type, one highlighted card,
 * and a small reward when something is done. Built on app.css's own tokens, so
 * it follows the console's light/dark switch. Words are short; the detail is one
 * tap away in a "How it works" fold, never gone.
 */
.air{--gap:clamp(40px,7vw,72px);--pad:clamp(20px,3.4vw,30px);--rad:26px;--ease:cubic-bezier(.2,.8,.2,1)}
body.air{margin:0;background:
  radial-gradient(980px 460px at 50% -140px,color-mix(in srgb,var(--accent) 17%,transparent),transparent 70%),
  var(--bg);color:var(--txt);font:400 16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;min-height:100dvh}
.air *{box-sizing:border-box}
.air a{color:var(--accent)}
.air .wrap{max-width:920px;margin:0 auto;padding:0 clamp(16px,4vw,28px) 96px}
.air .hide{display:none!important}

/* top bar: almost nothing */
.air .bar{display:flex;align-items:center;gap:12px;padding:18px clamp(16px,4vw,28px);max-width:920px;margin:0 auto}
.air .bar .brand{font-weight:800;letter-spacing:.14em;font-size:12px;color:var(--txt-dim);text-transform:uppercase}
.air .bar .sp{flex:1}
.air .back{display:inline-flex;align-items:center;gap:6px;color:var(--txt-dim);text-decoration:none;font-weight:600;font-size:14px;padding:8px 14px;border-radius:99px;border:1px solid var(--line)}
.air .back:hover{color:var(--txt);border-color:var(--line-2)}

/* the hero */
.air .hero{padding:clamp(28px,6vw,64px) 0 var(--gap);text-align:center}
.air .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--txt-dim);border:1px solid var(--line);border-radius:99px;padding:6px 14px;background:color-mix(in srgb,var(--bg-2) 70%,transparent)}
.air .eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 22%,transparent)}
.air h1{font-size:clamp(32px,6.4vw,54px);line-height:1.06;letter-spacing:-.025em;font-weight:750;margin:20px auto 14px;max-width:16ch}
.air .hl{color:var(--accent)}
.air .sub{color:var(--txt-dim);font-size:clamp(16px,2.2vw,19px);margin:0 auto;max-width:34ch}
.air .pick{display:inline-flex;gap:8px;margin-top:26px;align-items:center}
.air select.pill{appearance:none;-webkit-appearance:none;background:var(--bg-2);color:var(--txt);border:1px solid var(--line-2);border-radius:99px;padding:10px 38px 10px 18px;font:700 15px/1 inherit;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--txt-dim) 50%),linear-gradient(135deg,var(--txt-dim) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px;background-repeat:no-repeat;width:auto}
.air select.pill:hover{border-color:var(--accent)}

/* the four doors */
.air .doors{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:var(--gap)}
.air .door{position:relative;text-align:left;display:flex;flex-direction:column;gap:10px;padding:20px 18px 18px;min-height:152px;border-radius:var(--rad);border:1px solid var(--line);background:linear-gradient(180deg,var(--bg-2),color-mix(in srgb,var(--bg-2) 70%,var(--bg)));color:var(--txt);cursor:pointer;font:inherit;transition:transform .25s var(--ease),border-color .25s,box-shadow .25s}
.air .door:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--accent) 55%,var(--line))}
.air .door .ic{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:19px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent)}
.air .door b{font-size:17px;line-height:1.2;letter-spacing:-.01em}
.air .door small{color:var(--txt-dim);font-size:13.5px;line-height:1.4}
.air .door .st{margin-top:auto;font-size:12px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--txt-mute)}
.air .door.on{background:var(--accent);color:var(--on-accent);border-color:var(--accent);box-shadow:0 18px 50px -18px color-mix(in srgb,var(--accent) 70%,transparent)}
.air .door.on .ic{background:rgba(0,0,0,.14);color:var(--on-accent)}
.air .door.on small,.air .door.on .st{color:color-mix(in srgb,var(--on-accent) 72%,transparent)}
.air .door.ok .st{color:var(--accent)}
.air .door.on.ok .st{color:var(--on-accent)}

/* a panel: one job */
.air .panel{animation:airIn .45s var(--ease) both}
@keyframes airIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.air .ph{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.air .ph h2{font-size:clamp(24px,4vw,32px);letter-spacing:-.02em;line-height:1.15;margin:0;font-weight:750}
.air .ph p{margin:6px 0 0;color:var(--txt-dim)}

/* the step rail */
.air .rail{position:relative;display:flex;flex-direction:column;gap:22px}
.air .rail::before{content:"";position:absolute;left:21px;top:22px;bottom:22px;width:2px;background:var(--line);border-radius:2px}
.air .rail .fill{position:absolute;left:21px;top:22px;width:2px;background:var(--accent);border-radius:2px;height:0;transition:height .7s var(--ease);box-shadow:0 0 14px color-mix(in srgb,var(--accent) 65%,transparent)}
.air .st8{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;align-items:start}
.air .dot{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:16px;background:var(--bg);border:2px solid var(--line-2);color:var(--txt-dim);position:relative;z-index:1;transition:all .35s var(--ease)}
.air .st8.now .dot{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 16%,transparent)}
.air .st8.done .dot{background:var(--accent);border-color:var(--accent);color:var(--on-accent);animation:airPop .5s var(--ease)}
@keyframes airPop{0%{transform:scale(.6)}60%{transform:scale(1.18)}100%{transform:scale(1)}}
.air .sbox{border:1px solid var(--line);border-radius:var(--rad);padding:var(--pad);background:linear-gradient(180deg,var(--bg-2),color-mix(in srgb,var(--bg-2) 74%,var(--bg)))}
.air .st8.now .sbox{border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.air .sbox h3{font-size:19px;letter-spacing:-.01em;margin:0;font-weight:700;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.air .sbox h3 .sp{flex:1}
.air .sbox .line{margin:6px 0 0;color:var(--txt-dim);font-size:15px}
.air .sbox .body{margin-top:20px}
.air .sum{display:flex;flex-wrap:wrap;gap:6px 14px;color:var(--txt-dim);font-size:15px;margin-top:8px}
.air .sum b{color:var(--txt)}

/* folds: the detail, one tap away */
.air details.fold{margin-top:16px}
.air details.fold>summary{cursor:pointer;color:var(--txt-dim);font-weight:600;font-size:14px;list-style:none;display:inline-flex;align-items:center;gap:6px}
.air details.fold>summary::-webkit-details-marker{display:none}
.air details.fold>summary::before{content:"+";display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;border:1px solid var(--line-2);font-size:14px;line-height:1}
.air details.fold[open]>summary::before{content:"–"}
.air details.fold>div{margin-top:12px;color:var(--txt-dim);font-size:14.5px}
.air .prompt{white-space:pre-wrap;background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:16px;font:12.5px/1.55 ui-monospace,Menlo,Consolas,monospace;max-height:260px;overflow:auto;color:var(--txt-dim)}

/* buttons */
.air .actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.air .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:auto;border:1px solid var(--line-2);background:transparent;color:var(--txt);border-radius:99px;padding:13px 22px;font:700 15px/1 inherit;cursor:pointer;transition:transform .2s var(--ease),background .2s,border-color .2s,box-shadow .2s;text-decoration:none}
.air .btn:hover{border-color:var(--accent);transform:translateY(-1px)}
.air .btn:active{transform:scale(.97)}
.air .btn.pri{background:var(--accent);border-color:var(--accent);color:var(--on-accent);font-weight:800;box-shadow:0 10px 30px -12px color-mix(in srgb,var(--accent) 75%,transparent)}
.air .btn.pri:hover{box-shadow:0 14px 38px -10px color-mix(in srgb,var(--accent) 85%,transparent)}
.air .btn.sm{padding:9px 16px;font-size:13.5px}
.air .btn.ghost{border-color:transparent;color:var(--txt-dim)}
.air .btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.air .btn.big{padding:18px 34px;font-size:17px}
.air .pop{animation:airPop .4s var(--ease)}

/* fields */
.air .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.air .fld{display:flex;flex-direction:column;gap:6px;min-width:0}
.air .fld>span{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--txt-mute)}
.air input,.air select,.air textarea{font:inherit;font-size:15.5px;background:var(--bg);color:var(--txt);border:1px solid var(--line-2);border-radius:14px;padding:13px 15px;width:100%;transition:border-color .2s,box-shadow .2s}
.air input:focus,.air select:focus,.air textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
.air textarea{min-height:150px;font:12.5px/1.5 ui-monospace,Menlo,Consolas,monospace}

/* numbers that count up */
.air .tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin:4px 0 18px}
.air .nm{border:1px solid var(--line);border-radius:20px;padding:16px 18px;background:var(--bg)}
.air .nm span{display:block;font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--txt-mute)}
.air .nm b{display:block;font-size:clamp(22px,3.4vw,30px);letter-spacing:-.02em;margin-top:2px;font-variant-numeric:tabular-nums}
.air .nm.bad b{color:var(--bad)}.air .nm.hi{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.air .nm.hi span{color:color-mix(in srgb,var(--on-accent) 70%,transparent)}

/* status chips, never paragraphs */
.air .chips{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.air .chip{display:inline-flex;align-items:center;gap:7px;border-radius:99px;padding:7px 14px;font-size:13.5px;font-weight:600;border:1px solid var(--line-2);color:var(--txt-dim);background:var(--bg)}
.air .chip::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--txt-mute)}
.air .chip.ok{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}.air .chip.ok::before{background:var(--accent)}
.air .chip.warn{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 40%,var(--line))}.air .chip.warn::before{background:var(--warn)}
.air .chip.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 45%,var(--line))}.air .chip.bad::before{background:var(--bad)}
.air .msg{font-size:14.5px;margin-top:12px;color:var(--txt-dim)}.air .msg.ok{color:var(--accent)}.air .msg.bad{color:var(--bad)}
.air .gate{border:1px solid color-mix(in srgb,var(--warn) 45%,var(--line));background:color-mix(in srgb,var(--warn) 9%,transparent);color:var(--warn);border-radius:20px;padding:16px 20px;margin-bottom:22px;font-weight:600}

/* tables, quiet */
.air .scrollx{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:18px}
.air table{border-collapse:collapse;width:100%;font-size:14px}
.air th{font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--txt-mute);text-align:left;padding:12px 14px;background:color-mix(in srgb,var(--bg-2) 60%,var(--bg))}
.air td{padding:11px 14px;border-top:1px solid var(--line);vertical-align:top}
.air td.r,.air th.r{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.air td input{padding:8px 10px;font-size:14px;min-width:96px;border-radius:10px}
.air tr.out td{background:color-mix(in srgb,var(--bad) 7%,transparent)}
.air tr.flag td{background:color-mix(in srgb,var(--warn) 7%,transparent)}
.air h4{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:var(--txt-mute);margin:26px 0 10px;font-weight:700}

/* a drop zone */
.air .drop{display:block;border:2px dashed var(--line-2);border-radius:var(--rad);padding:clamp(28px,6vw,52px) 20px;text-align:center;color:var(--txt-dim);transition:all .25s var(--ease);cursor:pointer}
.air .drop b{display:block;color:var(--txt);font-size:19px;margin-bottom:4px}
.air .drop.over,.air .drop:hover{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,transparent);transform:scale(1.01)}

/* the reward */
.air .done-card{text-align:center;padding:clamp(26px,5vw,44px) 20px;border-radius:var(--rad);background:var(--accent);color:var(--on-accent)}
.air .done-card h3{display:block;font-size:clamp(24px,4.4vw,34px);letter-spacing:-.02em;margin:0 0 6px;font-weight:800}
.air .done-card p{margin:0 0 18px;color:color-mix(in srgb,var(--on-accent) 75%,transparent)}
.air .done-card .btn{background:var(--on-accent);color:var(--accent);border-color:var(--on-accent)}
.air .done-card .btn.ghost{background:transparent;color:var(--on-accent);border-color:color-mix(in srgb,var(--on-accent) 40%,transparent)}
.air .files{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px;font-size:12.5px;font-family:ui-monospace,Menlo,Consolas,monospace}
.air .files span{background:rgba(0,0,0,.12);border-radius:99px;padding:4px 12px}
.air .confetti{position:fixed;pointer-events:none;z-index:99;width:9px;height:14px;border-radius:2px;opacity:0;animation:airConf 1.5s var(--ease) forwards}
@keyframes airConf{0%{opacity:1;transform:translate(0,0) rotate(0)}100%{opacity:0;transform:translate(var(--dx),var(--dy)) rotate(var(--rot))}}

.air .fine{color:var(--txt-mute);font-size:13px;text-align:center;margin-top:var(--gap)}

@media (max-width:760px){
  .air .doors{grid-template-columns:repeat(2,minmax(0,1fr))}
  .air .door{min-height:132px}
  .air .st8{grid-template-columns:34px minmax(0,1fr);gap:12px}
  .air .dot{width:34px;height:34px;font-size:14px}
  .air .rail::before,.air .rail .fill{left:16px}
}
@media (prefers-reduced-motion:reduce){.air *,.air *::before{animation:none!important;transition:none!important}}

/* the three apps, as on the console */
.air .apps{display:inline-flex;gap:2px;padding:4px;border:1px solid var(--line-2);border-radius:99px;background:var(--bg)}
.air .apps a{color:var(--txt-dim);text-decoration:none;font-weight:700;font-size:13.5px;padding:7px 16px;border-radius:99px;white-space:nowrap}
.air .apps a:hover{color:var(--txt)}
.air .apps a.on{background:var(--accent);color:var(--on-accent)}

/* guides: plain, readable pages (bir/*.html) */
.air .hero.left{text-align:left;padding:clamp(18px,4vw,40px) 0 28px}
.air .hero.left h1{margin-left:0;max-width:22ch;font-size:clamp(28px,5vw,44px)}
.air .hero.left .sub{margin-left:0;max-width:56ch}
.air .prose{max-width:720px;font-size:17px;line-height:1.7;color:var(--txt)}
.air .prose h2{font-size:clamp(22px,3.4vw,28px);letter-spacing:-.02em;margin:48px 0 12px;font-weight:750;line-height:1.2}
.air .prose h3{font-size:19px;margin:28px 0 8px}
.air .prose p{margin:0 0 16px;color:var(--txt)}
.air .prose p.lead{font-size:19px;color:var(--txt-dim)}
.air .prose ul,.air .prose ol{margin:0 0 18px;padding-left:22px}
.air .prose li{margin:7px 0;padding-left:4px}
.air .prose code{font:14px ui-monospace,Menlo,Consolas,monospace;background:var(--bg-2);border:1px solid var(--line);border-radius:8px;padding:2px 7px}
.air .prose .scrollx{margin:18px 0}
.air .prose td,.air .prose th{font-size:15px}
.air .note{border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line));background:color-mix(in srgb,var(--accent) 7%,transparent);border-radius:20px;padding:16px 20px;margin:22px 0;color:var(--txt)}
.air .note b{color:var(--accent)}
.air .faq details{border-top:1px solid var(--line);padding:16px 0}
.air .faq details:last-child{border-bottom:1px solid var(--line)}
.air .faq summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none}
.air .faq summary::-webkit-details-marker{display:none}
.air .faq summary::after{content:"+";float:right;color:var(--accent);font-size:22px;line-height:1}
.air .faq details[open] summary::after{content:"\2013"}
.air .faq details p{margin:10px 0 0;color:var(--txt-dim)}
.air .cta{margin:56px 0 0}
.air .related{margin-top:44px;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.air .related a{display:block;border:1px solid var(--line);border-radius:20px;padding:16px 18px;text-decoration:none;color:var(--txt);background:var(--bg-2);transition:transform .2s,border-color .2s}
.air .related a:hover{transform:translateY(-2px);border-color:var(--accent)}
.air .related a b{display:block;font-size:15.5px;line-height:1.3}
.air .related a small{color:var(--txt-dim)}
.air .promptbox{margin:18px 0}
.air .sitefoot{margin-top:var(--gap);text-align:center;color:var(--txt-mute);font-size:13px}
.air .sitefoot a{color:var(--txt-dim)}

.air .themebtn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line-2);background:transparent;color:var(--txt-dim);font-size:17px;cursor:pointer;display:grid;place-items:center;margin-right:10px;padding:0}
.air .themebtn:hover{color:var(--accent);border-color:var(--accent)}
html.theme-light .air .apps a.on{color:#fff}
html.theme-light .air .door.on,html.theme-light .air .done-card{color:#fff}
html.theme-light .air .door.on small,html.theme-light .air .door.on .st{color:rgba(255,255,255,.82)}
html.theme-light .air .nm.hi{color:#fff}
html.theme-light .air .nm.hi span{color:rgba(255,255,255,.8)}
html.theme-light .air .done-card p{color:rgba(255,255,255,.85)}
html.theme-light .air .done-card .btn{background:#fff;color:var(--accent);border-color:#fff}
html.theme-light .air .done-card .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
html.theme-light .air .done-card .files span{background:rgba(255,255,255,.2)}
html.theme-light .air .btn.pri{color:#fff}

.air .bar .mark{width:30px;height:30px;border-radius:9px;margin-right:2px}