body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0f0f0f;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* Lamp */
.lamp-container {
    text-align: center;
}

.bulb {
    width: 80px;
    height: 80px;
    background: #333;
    border-radius: 50%;
    margin: 20px auto;
    transition: all 0.5s ease;
}

.bulb.on {
    background: #fff176;
    box-shadow: 0 0 40px #fff176, 0 0 80px #ffeb3b;
}

/* Button */
#toggleBtn {
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    background: #ff9800;
    color: white;
    border-radius: 5px;
}

/* Login Card */
.login-card {
    margin-top: 30px;
    padding: 20px;
    width: 300px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

.login-card.show {
    opacity: 1;
    transform: translateY(0);
}

input {
    width: 90%;
    margin: 10px 0;
    padding: 10px;
    border-radius: 5px;
    border: none;
}

.login-btn {
    padding: 10px;
    width: 100%;
    border: none;
    background: #4caf50;
    color: white;
    border-radius: 5px;
}