*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}body{overflow-x:clip;width:100%;font-family:'Hind Siliguri',sans-serif;background:var(--bg-main);color:var(--text-dark);min-height:100vh;display:flex;flex-direction:column}.navbar-actions{gap:8px}.error-wrapper{flex:1;display:flex;align-items:center;justify-content:center;padding:60px 16px}.error-card{background:var(--text-light);border-radius:24px;box-shadow:0 8px 48px color-mix(in srgb,var(--primary) 13%,transparent);border:1.5px solid color-mix(in srgb,var(--bg-light) 75%,var(--primary) 25%);padding:56px 48px 48px;max-width:680px;width:100%;text-align:center;position:relative;overflow:hidden}.error-card::before{content:'';position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,var(--primary),var(--secondary),var(--primary));background-size:200% auto;animation:shimmer 3s linear infinite}@keyframes shimmer{0%{background-position:0% center}100%{background-position:200% center}}.error-card::after{content:'';position:absolute;bottom:-30px;right:-30px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--primary) 7%,transparent) 0%,transparent 70%);pointer-events:none}.error-number{font-size:clamp(5rem,18vw,9rem);font-weight:900;line-height:1;letter-spacing:-4px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 50%,var(--primary-deeper,var(--primary)) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-block;margin-bottom:8px;animation:pulse-num 3s ease-in-out infinite}@keyframes pulse-num{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}.error-icon-row{display:flex;justify-content:center;align-items:center;gap:16px;margin-bottom:20px}.error-icon-bubble{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem}.bubble-blue{background:linear-gradient(135deg,var(--bg-light),color-mix(in srgb,var(--bg-light) 75%,var(--primary) 25%))}.bubble-green{background:linear-gradient(135deg,#f0fdf4,#bbf7d0)}.bubble-orange{background:linear-gradient(135deg,#fff7ed,#fed7aa)}.error-title{font-size:1.7rem;font-weight:800;color:var(--text-dark);margin-bottom:12px}.error-subtitle{font-size:1rem;color:var(--text-mid);line-height:1.8;margin-bottom:32px}.error-divider{height:2px;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--bg-light) 75%,var(--primary) 25%),#bbf7d0,transparent);border:none;margin:28px 0}.btn-home{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(90deg,var(--primary),var(--primary-deeper,var(--primary)));color:var(--text-light);border-radius:30px;padding:13px 34px;font-size:1rem;font-weight:700;text-decoration:none;border:none;box-shadow:0 4px 18px color-mix(in srgb,var(--primary) 25%,transparent);transition:all 0.22s;margin-bottom:10px}.btn-home:hover{background:linear-gradient(90deg,var(--primary-deeper,var(--primary)),var(--primary));color:var(--text-light);transform:translateY(-2px);box-shadow:0 8px 28px color-mix(in srgb,var(--primary) 32%,transparent)}.btn-register{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(90deg,var(--secondary),#15803d);color:var(--text-light);border-radius:30px;padding:13px 34px;font-size:1rem;font-weight:700;text-decoration:none;border:none;box-shadow:0 4px 18px rgba(34,197,94,0.20);transition:all 0.22s;margin-bottom:10px}.btn-register:hover{background:linear-gradient(90deg,#15803d,var(--secondary));color:var(--text-light);transform:translateY(-2px)}.btn-login-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--primary);border-radius:30px;padding:11px 28px;font-size:0.95rem;font-weight:600;text-decoration:none;border:2px solid var(--primary);transition:all 0.22s;margin-bottom:10px}.btn-login-outline:hover{background:var(--primary);color:var(--text-light)}.quick-links-title{font-size:0.88rem;font-weight:700;color:var(--text-light);text-transform:uppercase;letter-spacing:1px;margin-bottom:14px}.quick-links-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}.quick-link-item{background:var(--bg-main);border:1px solid color-mix(in srgb,var(--bg-light) 75%,var(--primary) 25%);border-radius:10px;padding:10px 12px;text-decoration:none;color:var(--text-dark);font-size:0.83rem;font-weight:600;display:flex;align-items:center;gap:8px;transition:all 0.18s}.quick-link-item:hover{background:linear-gradient(90deg,var(--bg-light),#f0fdf4);border-color:var(--secondary);color:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px color-mix(in srgb,var(--primary) 10%,transparent)}.quick-link-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);flex-shrink:0}.quick-link-dot.green{background:var(--green)}.info-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:24px}.info-chip{background:linear-gradient(90deg,#f0fdf4,var(--bg-light));border:1px solid color-mix(in srgb,var(--bg-light) 75%,var(--primary) 25%);border-radius:20px;padding:6px 16px;font-size:0.81rem;font-weight:600;color:var(--text-mid);display:flex;align-items:center;gap:6px}.info-chip i{color:var(--green)}.wave-container{position:relative;height:48px;overflow:hidden;margin-bottom:-2px}.wave-container svg{display:block}@media (max-width:767px){.error-card{padding:36px 20px 32px}.error-title{font-size:1.3rem}.btn-home,.btn-register{width:100%;justify-content:center}.btn-login-outline{width:100%;justify-content:center}}