body { background: radial-gradient(circle at top, #111, #000); color: #fff; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; } form { background: rgba(0, 0, 0, 0.85); border: 2px solid #0f0; border-radius: 12px; padding: 40px 30px; box-shadow: 0 0 15px rgba(0, 255, 0, 0.3), 0 0 5px rgba(255, 255, 255, 0.1); display: flex; flex-direction: column; gap: 20px; width: 300px; } input { padding: 12px 15px; border: none; border-radius: 8px; font-size: 16px; background: #222; color: white; outline: none; box-shadow: inset 0 0 5px #0f0; transition: 0.2s ease-in-out; } input:focus { box-shadow: inset 0 0 10px #0f0, 0 0 5px #0f0; } button { padding: 12px; background: #06d429; color: #000; border: none; border-radius: 8px; font-weight: bold; cursor: pointer; transition: background 0.2s ease-in-out; font-size: 16px; } button:hover { background: #1f1; }