.not-found{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:calc(var(--page-offset-top) + var(--spacing-2xl)) var(--spacing-md) var(--spacing-2xl);background:radial-gradient(circle at 12% 18%,var(--color-accent-yellow) 0,transparent 38%),radial-gradient(circle at 88% 82%,var(--color-accent-jade) 0,transparent 40%),var(--color-background)}.not-found__card{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:540px;width:100%;padding:var(--spacing-3xl) var(--spacing-xl);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}.not-found__number{font-family:var(--font-heading);font-size:clamp(5rem,16vw,9rem);font-weight:var(--font-weight-black);line-height:.9;letter-spacing:-.02em;color:var(--color-primary);margin-bottom:var(--spacing-md);user-select:none}.not-found__title{font-family:var(--font-heading);font-size:clamp(1.5rem,4vw,2.5rem);font-weight:var(--font-weight-black);color:var(--color-text-primary);margin-bottom:var(--spacing-sm)}.not-found__message{font-size:1.05rem;line-height:1.6;color:var(--color-text-muted);margin-bottom:var(--spacing-lg);max-width:440px}.not-found__divider{width:72px;height:4px;background:var(--color-secondary);border:none;border-radius:var(--radius-full);margin-bottom:var(--spacing-xl)}.not-found__actions{display:flex;flex-wrap:wrap;gap:var(--spacing-md);justify-content:center}.not-found__btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);min-height:44px;padding:0 var(--spacing-lg)}