body { font-family: Arial, sans-serif; background: #f9fafb; color: #333; display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; } .container { max-width: 500px; text-align: center; background: #fff; padding: 2rem; border-radius: 12px; box-shadow: 0 4px 12px rgba(0,0,0,0.08); } h1 { font-size: 1.6rem; margin-bottom: 1rem; color: #1a202c; } p { margin-bottom: 1.5rem; line-height: 1.4; } a.button { display: inline-block; padding: 0.75rem 1.5rem; border-radius: 8px; background: #0073e6; color: #fff; text-decoration: none; font-weight: bold; transition: background 0.2s ease-in-out; } a.button:hover { background: #005bb5; }