/* Reset CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body, html {
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #3498db, #8e44ad);
    overflow: hidden;
}

.login-container {
    position: relative;
    z-index: 2;
}

.login-box {
    width: 350px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

.login-box h2 {
    margin-bottom: 30px;
    color: #fff;
    font-weight: 300;
}

.input-box {
    position: relative;
    margin-bottom: 30px;
}

.input-box input {
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    margin-bottom: 30px;
    border: none;
    border-bottom: 1px solid #fff;
    outline: none;
    background: transparent;
    transition: 0.3s;
}

.input-box label {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    pointer-events: none;
    transition: 0.3s;
}

.input-box input:focus ~ label,
.input-box input:valid ~ label {
    top: -50px;
    left: 0;
    color: #000000;
    font-size: 12px;
}

button {
    background: #3498db;
    border: none;
    outline: none;
    color: #fff;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    transition: 0.3s;
}

button:hover {
    background: #8e44ad;
}

.animated-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent 70%);
    animation: animateBg 20s linear infinite;
    z-index: 1;
}

@keyframes animateBg {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    50% {
        transform: translate(-20px, -20px) rotate(180deg);
    }
    100% {
        transform: translate(0, 0) rotate(360deg);
    }
}