body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Bengali",sans-serif;background:linear-gradient(180deg,color-mix(in srgb,var(--bg-light) 65%,#fff 35%) 0%,var(--bg) 100%);color:var(--deep);line-height:1.7;min-height:100vh;display:flex;flex-direction:column}.error-wrap{flex:1;display:flex;align-items:center;padding:64px 0;background:radial-gradient(circle at top right,rgba(56,189,248,.22),transparent 30%),linear-gradient(135deg,#fbfeff 0%,#dff4ff 45%,#ebf8ff 100%)}.error-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:42px 28px;text-align:center}.error-code{font-size:clamp(4rem,10vw,7rem);font-weight:900;line-height:1;color:var(--ice);letter-spacing:-2px;margin-bottom:16px}.error-icon{width:88px;height:88px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;border-radius:24px;background:rgba(56,189,248,.15);font-size:2rem}.btn-ice{background:var(--ice);color:#07283d;border:none;border-radius:999px;padding:12px 24px;font-weight:700;text-decoration:none;display:inline-block}.btn-ice:hover{background:var(--primary);color:var(--text-light)}.quick-links a{text-decoration:none;color:var(--deep);font-weight:600;margin:6px 10px;display:inline-block}.quick-links a:hover{color:var(--ice)}