:root{--bg:#0a0a0a;--bg-card:#111111;--bg-section:#0f0f0f;--border:#1e1e1e;--border-mid:#2a2a2a;--accent:#FFBA00;--accent-dim:#cc9900;--text:#ffffff;--text-muted:#8a8a8a;--text-dim:#cccccc;--header-h:72px;--max-w:1280px;--pad-x:130px;--error-color:#e05555;--error-dim:#b84444}html{scroll-behavior:smooth}body{color:var(--text);background:var(--bg);min-height:100vh;font-family:Montserrat Variable,system-ui,sans-serif}a{color:inherit;text-decoration:none}html.light{--bg:#ffffff;--bg-card:#ffffff;--bg-section:#f5f5f5;--border:#e8e8e8;--border-mid:#d0d0d0;--accent:#e6a800;--accent-dim:#c79100;--text:#111111;--text-muted:#606060;--text-dim:#2a2a2a;--error-color:#d04040;--error-dim:#b03535}.error-section{height:100vh;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.error-section:before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:80px 80px;opacity:.3;pointer-events:none}.error-content{padding:0 var(--pad-x);z-index:1;position:relative;max-width:720px;text-align:center}.error-content.notFound{--after-bg:var(--accent);--label-color:var(--accent)}.error-content.internal{--after-bg:var(--error-color);--label-color:var(--error-color)}.error-code{font-size:180px;font-weight:800;letter-spacing:-.04em;line-height:1;color:var(--border-mid);position:relative;margin-bottom:8px}.error-code:after{content:"";position:absolute;bottom:20px;left:50%;transform:translateX(-50%);width:120px;height:4px;background:var(--after-bg)}.error-label{font-size:11px;letter-spacing:.25em;color:var(--label-color);margin-bottom:24px}.error-label,.error-title{font-weight:800;text-transform:uppercase}.error-title{font-size:36px;letter-spacing:-.01em;line-height:1.15;color:var(--text);margin-bottom:16px}.error-description{font-size:15px;font-weight:400;color:var(--text-dim);line-height:1.7;margin-bottom:40px;max-width:480px;margin-left:auto;margin-right:auto}.error-actions{display:flex;align-items:center;justify-content:center;gap:16px}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:var(--accent);color:#000;font-family:Montserrat,sans-serif;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;border:none;cursor:pointer;transition:background .2s}.btn-primary:hover{background:var(--accent-dim)}.btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:transparent;color:var(--text-dim);font-family:Montserrat,sans-serif;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--border-mid);cursor:pointer;transition:color .2s,border-color .2s}.btn-secondary:hover{color:var(--text);border-color:var(--text-muted)}.error-status{margin-top:48px;display:inline-flex;align-items:center;gap:10px;padding:12px 24px;border:1px solid var(--border);background:var(--bg-card)}.error-status-dot{width:8px;height:8px;background:var(--error-color);flex-shrink:0;animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.25}}.error-status-text{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}.error-hint{margin-top:48px;display:flex;align-items:center;justify-content:center;gap:10px}.error-hint-icon{width:6px;height:6px;background:var(--accent);flex-shrink:0}.error-hint-text{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--text-muted)}