.error-section{flex-direction:column;min-height:100vh;display:flex}.error-container{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:2rem;display:flex}.error-code{letter-spacing:.15em;text-transform:uppercase;color:var(--accent-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff26;border:1px solid #ffffff4d;border-radius:12px;padding:8px 16px;font-size:.85rem;font-weight:700;display:inline-block;box-shadow:0 2px 8px #00000014}.error-illustration{margin-top:24px;margin-bottom:12px;font-size:6rem;line-height:1;animation:3s ease-in-out infinite floatBook}@keyframes floatBook{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.title{color:var(--accent-color);margin-top:20px;font-size:clamp(2.8rem,5vw,4.5rem);font-weight:800;line-height:1.1}.subtitle{max-width:620px;color:var(--text-muted);margin-top:18px;font-size:1.05rem;line-height:1.8}.action{color:var(--accent-color);background:var(--accent-light);border-radius:999px;justify-content:center;align-items:center;margin-top:40px;padding:14px 28px;font-size:.95rem;font-weight:700;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s;display:inline-flex;box-shadow:0 5px 10px #00000014}.action:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 10px 24px #0000001f}@media (max-width:768px){.error-illustration{font-size:5rem}.subtitle{font-size:1rem}}@media (max-width:576px){.error-container{padding:1.5rem}.error-illustration{font-size:4.5rem}.title{font-size:2.4rem}.subtitle{font-size:.95rem;line-height:1.7}.action{width:100%;max-width:280px}}@media (max-width:380px){.title{font-size:2rem}.error-illustration{font-size:4rem}.subtitle{font-size:.9rem}}[data-theme=dark] .error-section{background:#09090b}[data-theme=dark] .error-code{-webkit-backdrop-filter:none;box-shadow:none;color:#71717a;background:#18181b;border:1px solid #27272a}[data-theme=dark] .title{color:#f4f4f5}[data-theme=dark] .subtitle{color:#71717a}[data-theme=dark] .action{color:var(--accent-color);box-shadow:none;background:#18181b;border:1px solid #27272a}[data-theme=dark] .action:hover{background:var(--accent-color);color:#fff;box-shadow:none;transform:translateY(-2px)}[data-theme=light] .error-section{background:#fff}[data-theme=light] .error-code{-webkit-backdrop-filter:none;box-shadow:none;color:#71717a;background:#f4f4f5;border:1px solid #e4e4e7}[data-theme=light] .title{color:#09090b}[data-theme=light] .subtitle{color:#71717a}[data-theme=light] .action{color:#fafafa;box-shadow:none;background:#09090b;border:1px solid #09090b}[data-theme=light] .action:hover{color:#fff;box-shadow:none;background:#18181b;transform:translateY(-2px)}