.err-page{min-height:100vh;display:grid;place-items:center;padding:24px 16px;background:radial-gradient(ellipse at 100% 100%,rgba(108,72,196,.16),transparent 60%),radial-gradient(ellipse at 0 100%,rgba(18,106,153,.14),transparent 55%),var(--bt-glow),var(--bt-paper);color:var(--bt-text);font:16px/1.55 var(--bt-font-body)}.err-card{position:relative;display:grid;gap:14px;width:min(560px,100%);padding:30px 26px 24px;border-radius:30px;background:var(--bt-raised);border:1px solid var(--bt-line);box-shadow:var(--bt-shadow-lg);overflow:hidden;animation:bt-enter var(--bt-motion-enter) var(--bt-ease) both}.err-card:before{content:"";position:absolute;inset:0 0 auto;height:6px;background:var(--bt-grad-brand)}.err-icon{display:grid;place-items:center;width:72px;height:72px;border-radius:24px;background:var(--bt-grad-action);color:var(--bt-on-action);box-shadow:var(--bt-shadow-md)}.err-lang{display:grid;gap:6px}.err-eyebrow{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--bt-teal)}.err-lang h1,.err-lang h2{margin:0;font:italic 34px/1.15 var(--bt-font-serif);color:var(--bt-blue)}.err-lang h2{font-size:28px;color:var(--bt-purple)}.err-lang p{margin:0;color:var(--bt-sub)}.err-rule{border:0;height:1px;margin:2px 0;background:var(--bt-line)}.err-actions{display:grid;gap:10px;margin-top:6px}.err-primary,.err-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 18px;border-radius:14px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;text-align:center}.err-primary{border:0;background:var(--bt-grad-action);color:var(--bt-on-action);box-shadow:var(--bt-shadow-sm)}.err-secondary{border:1px solid var(--bt-line);background:var(--bt-paper);color:var(--bt-text)}.err-link{justify-self:center;display:inline-flex;align-items:center;min-height:44px;color:var(--bt-teal);font-weight:600;text-decoration:none}.err-card :focus-visible{outline:3px solid var(--bt-teal);outline-offset:3px}@media(max-width:420px){.err-card{padding:26px 18px 20px}.err-lang h1{font-size:29px}.err-lang h2{font-size:25px}}@media(prefers-reduced-motion:reduce){.err-card{animation:none}}