.dn-404{max-width:960px;margin:0 auto;padding:72px 16px 96px;text-align:center;font-family:'Inter',Roboto,sans-serif;color:#0f172a}
.dn-404 *{font-family:inherit;font-style:normal}
.dn-404-code{display:block;font-size:120px;font-weight:800;line-height:1;letter-spacing:-4px;color:#2563eb;background:linear-gradient(135deg,#2563eb 0%,#1d4ed8 45%,#93c5fd 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:16px}
.dn-404-badge{display:inline-block;padding:6px 14px;border-radius:999px;background:#eff6ff;color:#1d4ed8;font-size:13px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;margin-bottom:20px}
.dn-404 h1{font-size:34px;font-weight:700;line-height:1.25;color:#0f172a;margin:0 0 14px}
.dn-404-lead{max-width:560px;margin:0 auto 32px;font-size:17px;line-height:1.6;color:#64748b}
.dn-404-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-bottom:64px}
.dn-404-btn{display:inline-block;padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;text-decoration:none;border:1px solid transparent;transition:background-color .15s,border-color .15s,color .15s}
.dn-404-btn:hover,.dn-404-btn:focus{text-decoration:none}
.dn-404-btn-primary{background:#2563eb;color:#fff;box-shadow:0 6px 16px rgba(37,99,235,.25)}
.dn-404-btn-primary:hover,.dn-404-btn-primary:focus{background:#1d4ed8;color:#fff}
.dn-404-btn-secondary{background:#fff;color:#0f172a;border-color:#cbd5e1}
.dn-404-btn-secondary:hover,.dn-404-btn-secondary:focus{border-color:#2563eb;color:#2563eb}
.dn-404-help{font-size:14px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;color:#94a3b8;margin:0 0 20px}
.dn-404-cards{display:flex;flex-wrap:wrap;gap:20px;text-align:left}
.dn-404-card{flex:1 1 240px;display:block;padding:24px;border:1px solid #e2e8f0;border-radius:16px;background:#fff;color:#0f172a;text-decoration:none;transition:border-color .15s,box-shadow .15s,transform .15s}
.dn-404-card:hover,.dn-404-card:focus{border-color:#2563eb;box-shadow:0 10px 24px rgba(15,23,42,.08);transform:translateY(-2px);text-decoration:none;color:#0f172a}
.dn-404-icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:#eff6ff;color:#2563eb;margin-bottom:16px}
.dn-404-icon svg{width:22px;height:22px}
.dn-404-card strong{display:block;font-size:17px;font-weight:700;margin-bottom:6px}
.dn-404-card span.dn-404-desc{display:block;font-size:14px;line-height:1.5;color:#64748b}
@media (max-width:600px){.dn-404{padding:48px 16px 64px}.dn-404-code{font-size:88px}.dn-404 h1{font-size:26px}.dn-404-lead{font-size:16px}.dn-404-btn{flex:1 1 100%}}