body {
    font-family: 'Poppins', Arial, sans-serif;
    background: linear-gradient(135deg, #2c3e5000, #4ca2af00);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    overflow: hidden;
}

.hidden {
    display: none;
}

#launderUI {
    background: rgba(0, 0, 0, 0.85);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
    max-width: 400px;
    width: 100%;
    transition: all 0.3s ease-in-out;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

#launderUI h1 {
    margin-bottom: 20px;
    font-size: 2em;
    color: #fdfdfd;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-bottom: 3px solid #4ca1af;
    display: inline-block;
    padding-bottom: 5px;
}

#launderUI input {
    padding: 15px;
    margin-bottom: 20px;
    width: calc(100% - 30px);
    border: 2px solid #555;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1em;
    outline: none;
    transition: border 0.3s ease-in-out, background 0.3s ease-in-out;
    backdrop-filter: blur(5px);
}

#launderUI input:focus {
    border: 2px solid #4ca1af;
    background: rgba(255, 255, 255, 0.2);
}

#launderUI button {
    padding: 15px 30px;
    margin: 10px 5px;
    background: linear-gradient(135deg, #4ca1af, #2c3e50);
    color: white;
    font-size: 1.2em;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 1.5px;
    transition: all 0.3s ease-in-out;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

#launderUI button:hover {
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
}

#launderUI button:active {
    transform: translateY(1px);
    box-shadow: 0 3px 7px rgba(0, 0, 0, 0.4);
}

#launderUI::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 4px;
    background: linear-gradient(90deg, #4ca1af, transparent);
    border-radius: 50px;
    animation: glowingLine 2s infinite;
}

@keyframes glowingLine {
    0% {
        width: 0;
        opacity: 0.5;
    }
    50% {
        width: 80%;
        opacity: 1;
    }
    100% {
        width: 0;
        opacity: 0.5;
    }
}