/* wfc lab — tokens = g1 (/_lab/home/) */
:root{--bg:#0a0c10;--bg2:#07080b;--card:#12151b;--card2:#171b22;--ink:#eef1f5;--ink2:#c9d0d9;--dim:#9aa3b0;--line:#232833;--line2:#343b48;--acc:#4fd1bb;--acc-ink:#03201b;--acc-soft:#0f2c28;--warn:#f2b441;--up:#ff8a7a;--down:#4fd69c;--pC:#4fd1bb;--dC:#b9a2ff;--jC:#f2b441;--sky0:#040706;--sky1:#0c2420;--sun:#1f4a42;--hill1:#14302a;--hill2:#10251f;--hill3:#0c1c18;--road:#26322f;--veh:#2c3a35;--vehs:#8a9c96;--glass:#2a4560;--r:16px;--hdr:64px;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI Variable Text","Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;color-scheme:dark}
html.fp-light{--bg:#f5f4ef;--bg2:#ecebe4;--card:#fff;--card2:#faf9f6;--ink:#111418;--ink2:#343b46;--dim:#5a616d;--line:#e4e1d8;--line2:#cfcbc0;--acc:#0b6b5f;--acc-ink:#fff;--acc-soft:#e2f0ec;--warn:#8a5300;--up:#b42318;--down:#0a7043;--pC:#0b6b5f;--dC:#6a43c2;--jC:#a35f00;--sky0:#bfe3d9;--sky1:#eef5ef;--sun:#fff3c9;--hill1:#d6e6dd;--hill2:#c3d9cd;--hill3:#b0ccbd;--road:#9aa69f;--veh:#ffffff;--vehs:#6b7a72;--glass:#cfe3ff;color-scheme:light}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--bg);scroll-padding-top:calc(var(--hdr) + 12px)}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--acc);text-underline-offset:3px}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums lining-nums}
.wrap{max-width:1110px;margin:0 auto;padding:0 24px}
/* header */
.hdr{position:sticky;top:0;z-index:20;height:var(--hdr);display:flex;align-items:center;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;gap:14px;width:100%}
.logo{font-weight:800;font-size:19px;letter-spacing:-.4px;color:var(--ink);text-decoration:none;white-space:nowrap}
.logo b{color:var(--acc)}
.nav{display:flex;gap:22px;margin-left:auto;font-size:14px}
.nav a{color:var(--ink2);text-decoration:none}
.nav a:hover{color:var(--ink)}
.pill{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line2);border-radius:12px;background:var(--card);font-size:13px;color:var(--ink2);white-space:nowrap}
.kbd{border:1px solid var(--line2);border-radius:6px;padding:0 5px;font-size:11px;color:var(--dim)}
.langs{display:inline-flex;border:1px solid var(--line2);border-radius:12px;overflow:hidden;background:var(--card);flex:none}
.langs a{padding:10px 11px;font-size:12px;font-weight:700;color:var(--dim);text-decoration:none;letter-spacing:.04em}
.langs a.on{background:var(--acc);color:var(--acc-ink)}
.ibtn{width:40px;height:40px;flex:none;border-radius:12px;border:1px solid var(--line2);background:var(--card);display:inline-flex;align-items:center;justify-content:center}
.ibtn .moon{display:none}html.fp-light .ibtn .moon{display:block}html.fp-light .ibtn .sun{display:none}
/* shared bits */
.kick{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--dim);text-transform:uppercase}
.kick i{font-style:normal;color:var(--acc)}
.h2{font-size:34px;line-height:1.12;letter-spacing:-.02em;margin:8px 0 10px;font-weight:800;max-width:820px}
.p{color:var(--ink2);max-width:760px;margin:0 0 18px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.seg{display:inline-flex;flex-wrap:wrap;gap:4px;padding:4px;border-radius:12px;border:1px solid var(--line2);background:var(--card2)}
.seg button{border:0;background:transparent;padding:7px 14px;border-radius:9px;font-size:13px;font-weight:700;color:var(--dim)}
.seg button.on{background:var(--acc);color:var(--acc-ink)}
.ad{margin:34px auto;border:1px dashed var(--line2);border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--dim);font-size:12px;background:repeating-linear-gradient(135deg,transparent 0 10px,color-mix(in srgb,var(--line) 45%,transparent) 10px 11px)}
.ad b{letter-spacing:.14em;font-size:10.5px;text-transform:uppercase}
.lg{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--ink2);margin:12px 0 0}
.lg i{display:inline-block;width:14px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}
.chart{width:100%;height:auto;display:block;overflow:visible}
.chart .gl{stroke:var(--line);stroke-width:1}
.chart .ax{font-size:12px;fill:var(--dim)}
.chart .ln{fill:none;stroke-width:2.6;stroke-linejoin:round;stroke-linecap:round}
.chart .lab{font-size:12px;font-weight:700;fill:var(--ink)}
.chart .labbg{fill:var(--card);stroke:var(--line2)}
.chart .ev{stroke:var(--line2);stroke-dasharray:3 4}
.chart .pin{fill:var(--ink)}
.chart .pint{font-size:11px;font-weight:800;fill:var(--bg);text-anchor:middle}
.evl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}
.evl div{display:flex;gap:10px;font-size:13px;color:var(--ink2)}
.evl b{flex:0 0 22px;height:22px;border-radius:50%;background:var(--ink);color:var(--bg);font-size:11px;display:flex;align-items:center;justify-content:center}
.rk{display:grid;grid-template-columns:34px 170px minmax(0,1fr) 104px;align-items:center;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
.rk:last-child{border-bottom:0}
.rk .i{color:var(--dim)}
.cc{display:inline-flex;align-items:center;justify-content:center;width:30px;font-size:10.5px;font-weight:800;letter-spacing:.05em;border:1px solid var(--line2);border-radius:6px;padding:2px 0;color:var(--ink2);margin-right:8px}
.bar{height:12px;border-radius:6px;background:var(--acc);transition:width .5s}
.rk.world{color:var(--dim)}.rk.world .bar{background:var(--dim)}
.rk .v{text-align:right;font-weight:700}
.hm{display:grid;grid-template-columns:52px repeat(12,minmax(0,1fr));gap:4px;font-size:12px}
.hm .c{height:34px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--ink)}
.hm .h{color:var(--dim);text-align:center}
.hm .y{color:var(--dim);display:flex;align-items:center}
.scale{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--dim);margin-top:12px}
.scale span{width:200px;height:10px;border-radius:5px;background:linear-gradient(90deg,var(--warn),var(--card2),var(--acc))}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{font-weight:700;cursor:pointer}
.faq p{color:var(--ink2);margin:8px 0 0;font-size:15px}
.ftr{border-top:1px solid var(--line);margin-top:40px;padding:26px 0 40px;font-size:13px;color:var(--dim)}
.ftr .wrap{display:flex;flex-wrap:wrap;gap:14px 22px;align-items:center}
.ftr a{color:var(--ink2);text-decoration:none}
.mock{font-size:12px;color:var(--dim);text-align:center;padding:14px 24px 0}
.vswitch{position:fixed;left:50%;bottom:16px;transform:translateX(-50%);z-index:30;display:flex;gap:4px;padding:5px;border-radius:999px;background:var(--ink);box-shadow:0 10px 30px rgba(0,0,0,.3)}
.vswitch a{padding:8px 14px;border-radius:999px;color:var(--bg);text-decoration:none;font-size:13px;font-weight:700;white-space:nowrap}
.vswitch a.on{background:var(--acc);color:var(--acc-ink)}
.anim{animation-timing-function:linear;animation-iteration-count:infinite}
html.paused .anim{animation-play-state:paused}
@media (prefers-reduced-motion:reduce){.anim{animation-play-state:paused}}
.pause{width:36px;height:36px;border-radius:50%;border:1px solid var(--line2);background:var(--card);display:flex;align-items:center;justify-content:center}
.pause .pl{display:none}html.paused .pause .pl{display:block}html.paused .pause .pa{display:none}
@media (max-width:900px){.nav{display:none}.pill.s{display:none}}
@media (max-width:640px){.h2{font-size:26px}.rk{grid-template-columns:24px 112px minmax(0,1fr) 76px;gap:8px;font-size:13px}.cc{display:none}.evl{grid-template-columns:minmax(0,1fr)}.hm{grid-template-columns:34px repeat(12,minmax(0,1fr));gap:2px}.hm .c{font-size:0;height:24px}.hm .h{font-size:9px}.wrap{padding:0 16px}.vswitch a{padding:7px 10px;font-size:12px}.logo{font-size:17px}.langs a{padding:10px 8px}}