.h404{position:relative;background:radial-gradient(90% 60% at 62% 0,rgba(23,195,125,.09),transparent 62%),radial-gradient(70% 50% at 20% 20%,rgba(13,90,60,.12),transparent 70%),#050807;color:#f2f7f4;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overflow:clip}.h404 ::selection{background:rgba(23,195,125,.35)}.h404-stage{position:relative;isolation:isolate;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:150px 24px 96px}.h404-falls{position:absolute;inset:0;width:100%;height:100%;z-index:5;pointer-events:none}.h404-stage>:not(.h404-falls){position:relative;z-index:2}.h404-code{margin:0 0 22px;font:500 11px/1 JetBrains Mono,ui-monospace,SFMono-Regular,monospace;letter-spacing:.34em;text-transform:uppercase;color:rgba(226,240,233,.4)}.h404 h1{margin:0;font-family:Inter Tight,Inter,system-ui,sans-serif;font-weight:600;font-size:clamp(40px,6.2vw,62px);line-height:1.03;letter-spacing:-.034em;color:#f6faf8}.h404-sub{margin:18px 0 0;max-width:520px;font-size:16.5px;font-weight:400;line-height:1.6;color:rgba(226,240,233,.62)}.h404-cta{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:34px}.h404-win{width:min(520px,88vw);margin-top:68px;border-radius:18px;background:linear-gradient(180deg,#0b0f0d,#080b0a);border:1px solid rgba(255,255,255,.1);box-shadow:0 30px 80px -30px rgba(0,0,0,.7),0 0 0 1px rgba(5,8,7,.6)}.h404-win-head{display:flex;align-items:center;gap:6px;padding:13px 16px;border-bottom:1px solid rgba(255,255,255,.07)}.h404-win-head .dot{width:9px;height:9px;border-radius:50%;background:rgba(238,243,236,.14)}.h404-win-name{margin-left:10px;font:400 11px/1 JetBrains Mono,ui-monospace,SFMono-Regular,monospace;letter-spacing:.08em;color:rgba(226,240,233,.4)}.h404-win-body{padding:42px 24px 40px}.h404-mark{font-family:Fraunces,Georgia,serif;font-weight:600;font-variation-settings:"opsz" 144;font-size:clamp(88px,17vw,126px);line-height:.9;letter-spacing:-.02em;color:rgba(226,240,233,.14);user-select:none}.h404-hint{margin:18px 0 0;font:400 11px/1.5 JetBrains Mono,ui-monospace,SFMono-Regular,monospace;letter-spacing:.16em;text-transform:uppercase;color:rgba(226,240,233,.34)}.h404 .up{opacity:0;transform:translateY(26px);animation:h404up 1.15s cubic-bezier(.16,1,.3,1) forwards;animation-delay:var(--d,0s)}@keyframes h404up{to{opacity:1;transform:none}}.h404 .upf{opacity:0;animation:h404f 1.15s cubic-bezier(.16,1,.3,1) forwards;animation-delay:var(--d,0s)}@keyframes h404f{to{opacity:1}}@media (prefers-reduced-motion:reduce){.h404 .up,.h404 .upf{animation:none;opacity:1;transform:none}}@media (max-width:640px){.h404-stage{padding:128px 20px 84px}.h404-win{margin-top:52px}.h404-win-body{padding:34px 20px 32px}}.h404-win{corner-shape:superellipse(2.32)}