* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    }

body {
    font-family: Arial, sans-serif;
    color: #444;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: url('../images/background.jpg') no-repeat center center fixed;
    background-size: cover;
    overflow: hidden;
    user-select: none;
    text-shadow: 0 0 2px #999;
    letter-spacing: 0.5px;
    }

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    z-index: 1;
    }

.content-wrapper {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    max-width: 800px;
    padding: 20px;
    overflow: hidden;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: scale(1);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: calc(100vh - 40px);
    margin-bottom: 40px;
    }

    .content-wrapper a:link {color: #444;}
    .content-wrapper a:visited {color: #555;}
    .content-wrapper a:hover {color: #191d53;}
    .content-wrapper a:active {color: #333;}

    .content-wrapper.hidden {
        opacity: 0;
        transform: scale(0.9);
        pointer-events: none;
        }

.content {
    display: block;
    }

.scrollable {
    margin-top: 50px;
    max-height: 77vh;
    overflow-y: auto;
    padding-right: 20px;
    text-align: left;
    }

    .scrollable h3 {
        position: absolute;
        top: 40px;
        z-index: 2;
        }

    .scrollable::-webkit-scrollbar {
        width: 8px;
        }

    .scrollable::-webkit-scrollbar-thumb {
        background: #bbb;
        border-radius: 4px;
        }

    .scrollable::-webkit-scrollbar-thumb:hover {
        background: #999;
        }

.footer {
    color: #444;
    font-size: 0.85rem;
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
    letter-spacing: -0.5px;
    display:block;
    width:100%;
    }

    .footer a {
        color: #444;
        text-decoration: none;
        margin: 0 10px;
        font-size: 0.85rem;
        border-bottom: 1px solid transparent;
        transition: border-color 0.3s ease;
        cursor: pointer;
        }

    .footer a:hover {
        border-color: #111;
        }

.hidden-content {
    display: none;
    }

.visible-content {
    display: block;
    }