.bc-404{padding:6rem 1.5rem 8rem;text-align:center;max-width:720px;margin:0 auto;position:relative}.bc-404__code{font-size:clamp(8rem, 25vw, 14rem);font-weight:var(--fw-extrabold);letter-spacing:-.05em;line-height:.9;background:var(--gradient-text-gold);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:#fff0;margin-bottom:1rem}.bc-404__title{font-size:clamp(1.5rem, 4vw, 2.25rem);font-weight:var(--fw-extrabold);letter-spacing:var(--tracking-tight);margin-bottom:.75rem}.bc-404__desc{color:var(--text-secondary);font-size:var(--text-lg);line-height:var(--leading-relaxed);margin-bottom:2.5rem;max-width:48ch;margin-left:auto;margin-right:auto}.bc-404__search{max-width:480px;margin:0 auto 2.5rem;display:flex;gap:.5rem;position:relative}.bc-404__search input{flex:1;padding:.85rem 1.25rem;background:var(--bg-surface-1);border:1px solid var(--border-default);border-radius:var(--radius-pill);color:var(--text-primary);font-family:inherit;font-size:var(--text-base)}.bc-404__search input:focus{outline:none;border-color:var(--accent-primary)}.bc-404__actions{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap;margin-bottom:3rem}.bc-404__popular{text-align:left;border-top:1px solid var(--border-subtle);padding-top:2.5rem}.bc-404__popular-label{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--text-tertiary);letter-spacing:var(--tracking-widest);text-transform:uppercase;margin-bottom:1rem;display:block;text-align:center}