:root { color-scheme: dark; --bg:#090a0d; --panel:#111318; --line:#252933; --muted:#8c95a7; --text:#f2f4f8; --blue:#72a7ff; --green:#70dc9b; --yellow:#f4c56a; --red:#ff7b81; }
* { box-sizing: border-box; }
html { background:var(--bg); -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; }
body { margin:0; min-height:100vh; padding:32px; background:var(--bg); color:var(--text); font:14px/1.45 -apple-system,BlinkMacSystemFont,"SF Pro Text",sans-serif; }
[hidden] { display:none !important; }
.platform-nav { max-width:1400px; margin:0 auto 48px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.platform-brand { min-height:44px; display:inline-flex; align-items:center; gap:9px; color:var(--text); font-weight:650; letter-spacing:-.01em; text-decoration:none; }
.brand-dot { width:9px; height:9px; border-radius:50%; background:var(--blue); box-shadow:0 0 18px rgba(114,167,255,.72); }
.platform-switcher { display:flex; gap:4px; padding:4px; border-radius:13px; background:var(--panel); box-shadow:0 0 0 1px rgba(255,255,255,.08); }
.platform-switcher a { min-width:72px; min-height:40px; padding:0 14px; display:inline-flex; align-items:center; justify-content:center; border-radius:9px; color:var(--muted); text-decoration:none; transition:background-color 140ms ease,color 140ms ease,box-shadow 140ms ease,transform 120ms ease; }
.platform-switcher a[aria-current="page"] { color:var(--text); background:#20242d; box-shadow:0 1px 3px rgba(0,0,0,.28); }
.platform-switcher a:active { transform:scale(.96); }
.platform-landing { max-width:1120px; margin:11vh auto 0; }
.platform-intro { max-width:700px; margin-bottom:34px; }
.platform-intro h1 { margin-top:8px; font-size:44px; line-height:1.04; }
.platform-intro > p:last-child { max-width:650px; margin:0; color:var(--muted); font-size:16px; text-wrap:pretty; }
.platform-grid { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.platform-card { min-height:310px; padding:24px; display:flex; flex-direction:column; color:var(--text); text-decoration:none; border-radius:24px; background:linear-gradient(145deg,rgba(27,31,39,.98),rgba(15,17,22,.98)); box-shadow:0 0 0 1px rgba(255,255,255,.08),0 20px 54px rgba(0,0,0,.24); transition:transform 150ms ease,box-shadow 150ms ease; }
.platform-card-mac.is-recommended { box-shadow:0 0 0 1px rgba(114,167,255,.32),0 24px 64px rgba(28,69,145,.2); }
.platform-card-iphone.is-recommended { box-shadow:0 0 0 1px rgba(112,220,155,.28),0 24px 64px rgba(25,105,65,.16); }
.platform-card:active { transform:scale(.96); }
.platform-card-top { min-height:24px; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.platform-kicker { color:var(--muted); font:11px ui-monospace,monospace; letter-spacing:.11em; }
.platform-recommended { padding:4px 8px; border-radius:999px; color:var(--green); background:rgba(112,220,155,.1); font-size:10px; font-weight:650; }
.platform-card h2 { margin:18px 0 6px; font-size:28px; letter-spacing:-.03em; text-wrap:balance; }
.platform-card p { max-width:480px; margin:0; color:var(--muted); font-size:15px; text-wrap:pretty; }
.platform-cta { margin-top:auto; padding-top:28px; color:var(--blue); font-weight:650; }
.platform-card-iphone .platform-cta { color:var(--green); }
.device-mark { height:70px; margin-top:24px; position:relative; color:var(--blue); }
.device-mark-mac { width:112px; height:68px; border:2px solid currentColor; border-radius:9px; box-shadow:0 12px 28px rgba(65,118,225,.16); }
.device-mark-mac::after { content:""; position:absolute; left:39px; bottom:-10px; width:34px; height:2px; border-radius:2px; background:currentColor; box-shadow:0 6px 0 -1px currentColor; }
.device-mark-mac span { position:absolute; inset:5px; border-radius:4px; background:linear-gradient(145deg,rgba(114,167,255,.22),rgba(114,167,255,.04)); }
.device-mark-iphone { width:42px; height:72px; color:var(--green); border:2px solid currentColor; border-radius:12px; box-shadow:0 12px 28px rgba(48,166,98,.14); }
.device-mark-iphone::before { content:""; position:absolute; top:4px; left:50%; width:12px; height:3px; border-radius:3px; background:currentColor; transform:translateX(-50%); }
.device-mark-iphone span { position:absolute; inset:8px 4px 5px; border-radius:7px; background:linear-gradient(145deg,rgba(112,220,155,.2),rgba(112,220,155,.035)); }
header { max-width:1400px; margin:auto; display:flex; justify-content:space-between; gap:32px; align-items:flex-end; }
h1 { margin:4px 0 8px; font-size:30px; letter-spacing:-.03em; text-wrap:balance; }
.eyebrow { color:var(--blue); font:11px ui-monospace,monospace; letter-spacing:.12em; margin:0; }
.lede { color:var(--muted); margin:0; max-width:720px; text-wrap:pretty; }
.actions { display:flex; gap:8px; flex-wrap:wrap; align-items:end; }
.actions label { display:flex; flex-direction:column; gap:4px; color:var(--muted); font-size:11px; }
.actions .state-control { display:flex; gap:4px; }
select,input { border:1px solid var(--line); border-radius:9px; padding:8px 28px 8px 10px; background:#171a20; color:var(--text); min-height:36px; }
select:focus-visible,input:focus-visible,button:focus-visible,a:focus-visible { outline:2px solid var(--blue); outline-offset:2px; }
input { width:210px; padding-right:10px; }
button { min-height:44px; border:1px solid var(--line); border-radius:9px; padding:9px 13px; background:#171a20; color:var(--text); cursor:pointer; touch-action:manipulation; transition:transform 120ms ease,background-color 120ms ease,border-color 120ms ease,opacity 120ms ease; }
button.primary { background:#366be6; border-color:#4b7ef0; }
button:not(:disabled):active { transform:scale(.96); }
button:disabled { opacity:.42; cursor:not-allowed; }
@media (hover:hover) {
  .platform-switcher a:hover:not([aria-current="page"]){color:var(--text);background:rgba(255,255,255,.045)}
  .platform-card-mac:hover:not(:active){transform:translateY(-2px);box-shadow:0 0 0 1px rgba(114,167,255,.34),0 26px 68px rgba(28,69,145,.22)}
  .platform-card-iphone:hover:not(:active){transform:translateY(-2px);box-shadow:0 0 0 1px rgba(112,220,155,.31),0 26px 68px rgba(25,105,65,.18)}
  button:not(:disabled):hover{background:#20242d;border-color:#353b49}
  button.primary:not(:disabled):hover{background:#4276ec;border-color:#5a89f3}
}
.mac-lab-mode .platform-nav,.ios-study-mode .platform-nav { margin-bottom:34px; }
.ios-study-mode header { align-items:stretch; flex-direction:column; gap:18px; }
.ios-study-mode .actions label { display:none; }
.ios-study-mode .actions { align-items:stretch; }
.ios-study { width:100%; padding:18px; display:grid; grid-template-columns:minmax(260px,.8fr) minmax(520px,1.8fr); gap:24px; border:1px solid rgba(114,167,255,.28); border-radius:18px; background:linear-gradient(135deg,rgba(54,107,230,.15),rgba(17,19,24,.96) 52%); box-shadow:0 18px 48px rgba(0,0,0,.28),0 1px 0 rgba(255,255,255,.04) inset; }
.ios-study[hidden] { display:none; }
.ios-study h2 { margin:4px 0 8px; font-size:20px; letter-spacing:-.02em; text-wrap:balance; }
.ios-study p { margin:0; color:var(--muted); text-wrap:pretty; }
.ios-study .study-warning { margin-top:10px; color:var(--yellow); font-size:12px; }
.ios-study-fields { display:grid; grid-template-columns:repeat(3,minmax(150px,1fr)); gap:10px; align-content:start; }
.ios-study-fields label { display:flex; min-width:0; flex-direction:column; gap:4px; color:var(--muted); font-size:11px; }
.ios-study-fields input,.ios-study-fields select { width:100%; min-width:0; }
.summary { max-width:1400px; margin:24px auto 14px; display:grid; grid-template-columns:1fr 1fr 3fr 2fr; gap:1px; background:var(--line); border:1px solid var(--line); border-radius:12px; overflow:hidden; }
.summary div { background:var(--panel); padding:13px 15px; min-width:0; } .summary span { display:block; color:var(--muted); font-size:11px; margin-bottom:4px; } .summary strong,.summary code { font-variant-numeric:tabular-nums; } .summary code { display:block; color:var(--green); overflow:hidden; text-overflow:ellipsis; }
main { max-width:1400px; margin:auto; display:grid; gap:8px; }
.probe { border:1px solid var(--line); background:var(--panel); border-radius:10px; overflow:hidden; }
.probe summary { cursor:pointer; padding:11px 14px; display:grid; grid-template-columns:180px 1fr 100px 180px; gap:12px; align-items:center; }
.probe summary::marker { color:var(--muted); }.probe .id { font-family:ui-monospace,monospace; color:var(--blue); }.probe .label { color:var(--text); }.probe .status { text-transform:uppercase; font-size:10px; font-weight:700; letter-spacing:.06em; }.probe .hash { font:11px ui-monospace,monospace; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; color:var(--green); }
.status-ok { color:var(--green); }.status-partial,.status-unsupported { color:var(--yellow); }.status-error,.status-timeout,.status-blocked { color:var(--red); }
pre { margin:0; padding:14px; max-height:560px; overflow:auto; border-top:1px solid var(--line); background:#0c0e12; color:#cbd1dc; font:11px/1.5 ui-monospace,"SF Mono",Menlo,monospace; white-space:pre-wrap; word-break:break-word; }
.raw { max-width:1400px; margin:12px auto; border:1px solid var(--line); border-radius:10px; background:var(--panel); }.raw summary { padding:12px 14px; cursor:pointer; color:var(--muted); }
@media (max-width:800px) {
  body{padding:calc(16px + env(safe-area-inset-top)) calc(14px + env(safe-area-inset-right)) calc(18px + env(safe-area-inset-bottom)) calc(14px + env(safe-area-inset-left))}
  .platform-nav{margin-bottom:34px}
  .platform-landing{margin-top:6vh}
  .platform-intro h1{font-size:36px}
  .platform-grid{grid-template-columns:1fr}
  .platform-card{min-height:278px}
  header{align-items:stretch;flex-direction:column;gap:18px}
  h1{font-size:27px;line-height:1.08}
  .actions{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
  .actions label{min-width:0}
  .actions input,.actions select{width:100%;min-width:0;font-size:16px}
  .actions button{width:100%}
  .ios-study{padding:16px;grid-template-columns:1fr;gap:18px}
  .ios-study-fields{grid-template-columns:1fr 1fr}
  .ios-study-fields input,.ios-study-fields select{font-size:16px}
  .summary{grid-template-columns:1fr 1fr;margin-top:18px}
  .summary div:nth-child(n+3){grid-column:1 / -1}
  .probe summary{grid-template-columns:1fr auto;gap:5px 10px}
  .probe .label{grid-column:1 / -1;color:var(--muted)}
  .probe .hash{display:none}
  pre{max-height:65vh;font-size:10px}
}
@media (prefers-reduced-motion:reduce) {
  button,.platform-card,.platform-switcher a{transition:none}
}
@media (max-width:430px) {
  .platform-nav{align-items:flex-start;flex-direction:column}
  .platform-switcher{width:100%}
  .platform-switcher a{flex:1}
  .platform-intro h1{font-size:32px}
  .platform-card{padding:20px;border-radius:20px}
  .actions,.ios-study-fields{grid-template-columns:1fr}
  .summary{grid-template-columns:1fr}
  .summary div:nth-child(n){grid-column:auto}
}