body, html {
    margin: 0;
    padding: 0;
    font-family: 'Courier New', Courier, monospace;
    height: 100%;
    background: black;
    color: #00ff00;
    overflow: hidden;
}

.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    object-fit: cover;
}

.matrix-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: black;
    animation: matrix-fall 5s linear infinite;
}

@keyframes matrix-fall {
    0% {
        background: black;
    }
    100% {
        background: url('matrix-mandarin.gif') repeat;
    }
}

/* Click-to-Start Section */
.click-to-start {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: black;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    z-index: 10;
}

.matrix-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: black;
    overflow: hidden;
    z-index: 1;
}

.matrix-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('matrix-mandarin.gif') center/cover no-repeat;
    opacity: 0.2; /* Matrix-Hintergrund mit Mandarin-Zeichen */
}

.start-text {
    z-index: 2;
    color: #00ff00;
    font-size: 2em;
    text-align: center;
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
}

/* Main Content */
.video-background {
    display: none; /* Entferne das Video für ein terminalähnliches Design */
}

.card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 600px;
    background: rgba(0, 0, 0, 0.9); /* Leicht transparent für besseren Kontrast */
    border: 2px solid #00ff00;
    border-radius: 5px;
    text-align: left;
    color: #00ff00;
    padding: 30px;
    box-shadow: 0 0 10px #00ff00;
}

.banner {
    width: 100%;
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: black; /* Fallback-Hintergrund */
}

.banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-container {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.profile-picture {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid #00ff00;
    background: #000;
    flex-shrink: 0;
}

.username {
    font-size: 1.5em;
    font-weight: bold;
    margin: 0;
}

.userid {
    font-size: 0.8em;
    color: #00ff00;
    margin: 0;
}

.about-me {
    font-size: 1em;
    margin: 20px 0;
    color: #00ff00;
}

.buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.button {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    text-decoration: none;
    color: #00ff00;
    background: black;
    border: 1px solid #00ff00;
    padding: 10px;
    border-radius: 3px;
    font-size: 1em;
    font-weight: bold;
    transition: background 0.3s, transform 0.2s;
}

.button:hover {
    background: #00ff00;
    color: black;
    transform: scale(1.05);
}

.button i {
    font-size: 1.2em;
}

.button span {
    display: inline-block;
}