:root{color-scheme:dark;--bg-start:#07110b;--bg-mid:#050c08;--bg-end:#020403;--card-bg:rgba(6,20,14,.55);--border:rgba(120,255,180,.18);--text:#ecfff4;--muted:#a8e6c2;--primary:#5dffb3;--primary-soft:rgba(93,255,179,.15);--glow:rgba(93,255,179,.35)}*{box-sizing:border-box;margin:0;padding:0}body{background:radial-gradient(circle at top,var(--bg-start) 0,var(--bg-mid) 55%,var(--bg-end) 100%),radial-gradient(circle at 80% 20%,rgba(93,255,179,.08),transparent 40%);color:var(--text);font-family:Inter,Segoe UI,system-ui,sans-serif;min-height:100vh}.error-page,.notice-wrapper{align-items:center;display:flex;justify-content:center;min-height:100vh;padding:2rem}.error-card,.notice-card{backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);background:linear-gradient(180deg,rgba(12,40,28,.65),var(--card-bg));border:1px solid var(--border);border-radius:20px;box-shadow:0 0 0 1px #5dffb30d,0 25px 60px #0009,0 0 45px var(--glow);overflow:hidden;padding:2.75rem 2.4rem;position:relative;text-align:center;width:min(560px,100%)}.error-card:before,.notice-card:before{background:radial-gradient(circle at top,rgba(93,255,179,.18),transparent 60%);content:"";top:-1px;right:-1px;bottom:-1px;left:-1px;pointer-events:none;position:absolute}.badge{background:var(--primary-soft);border:1px solid rgba(93,255,179,.45);border-radius:999px;box-shadow:0 0 12px #5dffb340;color:var(--primary);display:inline-flex;font-size:.75rem;letter-spacing:.12em;margin-bottom:1.2rem;padding:.4rem .95rem;text-transform:uppercase}h1{font-size:clamp(1.9rem,2.2vw,2.4rem);letter-spacing:.06em;margin-bottom:1.25rem;text-shadow:0 0 18px rgba(93,255,179,.25)}p{color:var(--muted);line-height:1.7;margin-bottom:1rem}p:last-of-type{margin-bottom:0}a{color:var(--primary);position:relative;text-decoration:none}a:after{background:linear-gradient(90deg,transparent,var(--primary),transparent);bottom:-3px;content:"";height:1px;left:0;opacity:0;position:absolute;transition:opacity .25s ease;width:100%}a:hover:after{opacity:1}