.navbar{z-index:100;background-color:var(--hero-bg);width:100%;padding:18px var(--container-px);justify-content:space-between;align-items:center;gap:16px;display:flex;position:sticky;top:0}.logo{color:var(--hero-text);align-items:center;gap:10px;text-decoration:none;transition:opacity .15s;display:inline-flex}.logo:hover{opacity:.85}.logo__icon{flex:none;width:30px;height:30px}.logo__icon svg{width:100%;height:100%;display:block}.logo__text{font-family:var(--font-display);letter-spacing:.04em;color:inherit;font-size:22px;font-weight:700;line-height:1}.nav-right{align-items:center;gap:6px;display:inline-flex}.icon-btn{width:38px;height:38px;color:var(--hero-text);cursor:pointer;background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;transition:background-color .15s;display:inline-flex}.icon-btn:hover{background:var(--hero-surface)}.icon-btn svg{stroke:currentColor;fill:none;width:18px;height:18px}.theme-toggle__sun{display:inline-flex}.theme-toggle__moon,.dark .theme-toggle__sun{display:none}.dark .theme-toggle__moon{display:inline-flex}.lang{position:relative}.lang__trigger{letter-spacing:.04em;height:38px;color:var(--hero-text);cursor:pointer;background:0 0;border:none;border-radius:10px;align-items:center;gap:4px;padding:0 10px;font-family:inherit;font-size:13px;font-weight:600;transition:background-color .15s;display:inline-flex}.lang__trigger:hover{background:var(--hero-surface)}.lang__trigger svg{opacity:.7;width:10px;height:10px;transition:transform .2s}.lang.is-open .lang__trigger svg{transform:rotate(180deg)}.lang__menu{background:var(--page-surface);border:1px solid var(--page-border);border-radius:var(--radius-btn);opacity:0;visibility:hidden;z-index:100;min-width:170px;padding:4px;transition:opacity .15s,transform .15s,visibility .15s;position:absolute;top:calc(100% + 8px);right:0;transform:translateY(-4px);box-shadow:0 12px 32px -8px #1403422e}.lang.is-open .lang__menu{opacity:1;visibility:visible;transform:translateY(0)}.lang__option{width:100%;color:var(--page-text);text-align:left;cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:space-between;align-items:center;padding:9px 12px;font-family:inherit;font-size:13px;font-weight:500;transition:background-color .12s;display:flex}.lang__option:hover{background:var(--page-surface-hover)}.lang__option[aria-selected=true]:after{content:"";background:var(--brand-violet);border-radius:50%;width:6px;height:6px}.e404{padding:clamp(48px, 6vw, 96px) var(--container-px);flex:1;align-items:center;display:flex}.e404__container{grid-template-columns:1fr;align-items:center;gap:clamp(40px,6vw,72px);width:100%;max-width:1080px;margin:0 auto;display:grid}@media (min-width:880px){.e404__container{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(48px,7vw,96px)}}.e404__art{aspect-ratio:1;background:var(--hero-bg);border-radius:var(--radius-card);width:100%;max-width:480px;box-shadow:0 1px 0 var(--page-border), 0 24px 48px -16px #14034226;margin:0 auto;display:block;position:relative;overflow:hidden}.dark .e404__art{box-shadow:0 1px 0 var(--page-border), 0 24px 48px -16px #0006}.e404__art:before{content:"";filter:blur(20px);pointer-events:none;background:radial-gradient(circle at 50% 40%,#693efe59 0%,#3901fb1f 35%,#0000 65%);position:absolute;inset:-20%}.e404__art img{object-fit:cover;object-position:center;width:100%;height:100%;display:block;position:relative}.e404__copy{max-width:540px}.e404__eyebrow{letter-spacing:.16em;text-transform:uppercase;color:var(--brand-violet);margin-bottom:18px;font-size:12px;font-weight:600;display:inline-block}.dark .e404__eyebrow{color:var(--brand-lilac)}.e404__title{font-family:var(--font-display);letter-spacing:-.03em;color:var(--page-text);margin:0 0 18px;font-size:clamp(2rem,4.5vw,3.25rem);font-weight:700;line-height:1.05}.e404__tagline{color:var(--page-text-dim);margin:0 0 32px;font-size:clamp(15.5px,1.3vw,17px);line-height:1.6}.e404__actions{flex-wrap:wrap;gap:12px;display:flex}.btn{border-radius:var(--radius-btn);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:14px 24px;font-family:inherit;font-size:15px;font-weight:600;text-decoration:none;transition:background-color .15s,border-color .15s,color .15s;display:inline-flex}.btn--dark{background:var(--page-text);color:var(--page-bg)}.btn--dark:hover{background:var(--brand-violet)}.btn--ghost{color:var(--page-text);border-color:var(--page-border);background:0 0}.btn--ghost:hover{background:var(--page-surface-hover);border-color:var(--page-text-faint)}.footer{padding:24px var(--container-px);border-top:1px solid var(--page-border);color:var(--page-text-dim);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;font-size:12.5px;display:flex}.footer__links{gap:18px;display:flex}.footer__links a{color:var(--page-text-dim);text-decoration:none;transition:color .15s}.footer__links a:hover{color:var(--page-text)}@keyframes e404-reveal{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.e404__art{animation:.6s cubic-bezier(.22,1,.36,1) 50ms both e404-reveal}.e404__eyebrow{animation:.6s cubic-bezier(.22,1,.36,1) .2s both e404-reveal}.e404__title{animation:.6s cubic-bezier(.22,1,.36,1) .3s both e404-reveal}.e404__tagline{animation:.6s cubic-bezier(.22,1,.36,1) .4s both e404-reveal}.e404__actions{animation:.6s cubic-bezier(.22,1,.36,1) .5s both e404-reveal}@media (prefers-reduced-motion:reduce){.e404__art,.e404__eyebrow,.e404__title,.e404__tagline,.e404__actions{animation:none}}