@font-face{font-family:Barlow;src:url(/firnline/assets/Barlow-Regular.ttf)format("truetype");font-display:swap}@font-face{font-family:BarlowCondensed;src:url(/firnline/assets/BarlowCondensed-SemiBold.ttf)format("truetype");font-weight:600;font-display:swap}:root{color:#f1f5f3;font-synthesis:none;--ink:#213b3c;--ice:#f1f5f3;--gold:#e0c897;background:#849ea9;font-family:Barlow,Avenir Next,sans-serif}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:wait}button:focus-visible,a:focus-visible{outline:2px solid var(--gold);outline-offset:6px}button{border:0}button[hidden],[hidden]{display:none!important}#world,canvas,.film{width:100%;height:100%;position:fixed;inset:0}canvas{touch-action:none;display:block}.film{pointer-events:none;background:linear-gradient(90deg,#0b1c2075,#0000 65%),linear-gradient(#0c1f2740,#0000 30% 50%,#0b1c20b8);transition:opacity 1s}.playing 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10px #132833aa;grid-template-columns:auto auto;align-items:baseline;gap:5px 35px;display:grid;position:fixed;bottom:40px;left:5.6%}.hud strong{font-family:BarlowCondensed,sans-serif;font-size:62px;font-weight:600;line-height:1}.hud .speed strong{font-size:31px}.hud span{color:#eef3f2bb;font-size:13px;display:block}.line-indicator{background:#ffffff35;grid-column:1/3;width:100%;height:2px;margin:14px 0 7px;position:relative}.line-indicator span{background:var(--gold);width:4px;height:8px;transition:transform 80ms;position:absolute;top:-3px;left:50%}.hud #surface{grid-column:1/3}.hint{color:#f2f6f3;text-shadow:0 1px 5px #10242f;font-size:13px;transition:opacity 2s;position:fixed;bottom:38px;right:5.6%}.touch-controls{bottom:max(28px, env(safe-area-inset-bottom));justify-content:space-between;gap:20px;display:none;position:fixed;left:5%;right:5%}.touch-controls 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.small{color:#627a79}.keys{grid-template-columns:auto 1fr;gap:16px 28px;display:grid}.keys dt{font-weight:700}.keys dd{margin:0}.error{color:#213b3c;z-index:20;background:#eff3ef;padding:30px;position:fixed;inset:20%}@media (width<=650px){.topbar{top:23px;left:7%;right:7%}.tools{gap:17px}.wordmark{font-size:24px}.wordmark svg{width:24px}.intro{padding-left:7%;padding-right:7%}.intro-aside{display:none}.intro-main{padding-bottom:93px}h1{font-size:clamp(80px,19vw,120px)}.tagline{margin:22px 0;font-size:16px}.location{font-size:15px}.intro-footer{left:7%;right:7%}.hud{gap:4px 23px;top:96px;bottom:auto;left:7%}.hud strong{font-size:46px}.hud .speed strong{font-size:25px}.hint{display:none}.results{padding:7%}.results .result-score{margin-top:23px}.result-actions{gap:15px}.tools button{font-size:13px}}@media (pointer:coarse),(width<=650px){.touch-controls{display:flex}.playing .hud{top:96px;bottom:auto}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important}}.hud{color:#19353c;text-shadow:0 1px 8px #eff5f299;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#edf3f2ce;border-top:1px solid #ffffff80;border-radius:3px;padding:17px 22px 19px}.hud span{color:#395660}.line-indicator{background:#244a5935}.line-indicator span{background:#6c7865}.playing .topbar{color:#213b43}.playing .tools button{text-shadow:0 1px 8px #edf3f2}.intro-aside{text-shadow:0 1px 12px #143541,0 1px 3px #17323f99}@media (width<=650px){.hud{padding:12px 16px 13px}.hud strong{font-size:43px}}#intro-best:empty{display:none}