.not-found{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:15px;text-align:center;padding:20px}.not-found h1{font-size:100px;margin:0}.not-found p{color:#666}.not-found a{padding:12px 24px;background:#000;color:#fff;text-decoration:none;border-radius:6px}