* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: Arial, sans-serif;
    background-color: rgb(20, 20, 20);
    color: rgb(245, 245, 245);
}
/**/
/* Navagational Bar */
/**/
nav {
    background-color: rgb(40, 40, 40);
    color: rgb(245, 245, 245);
    padding: 10px 20px;
}
nav .logo {
    font-size: 1.5em;
}
/**/
/* Control Bar */
/**/
.controls {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    gap: 20px;
}
.toggle-controls {
    display: flex;
    gap: 20px;
}
.toggle-controls label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgb(40, 40, 40);
    color: rgb(245, 245, 245);
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    width: 200px;
}
.toggle-controls input[type="checkbox"] {
    transform: scale(1.5);
    margin-left: 10px;
}
.category-dropdown {
    position: relative;
    width: 200px;
}
.category-dropdown .selected {
    background-color: rgb(40, 40, 40);
    color: rgb(245, 245, 245);
    padding: 10px;
    border-radius: 10px;
    border: 2px solid rgb(201, 201, 201);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.category-dropdown .selected::after {
    content: '';
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid rgb(245, 245, 245);
    transform: translateY(-50%);
    pointer-events: none;
}
.category-dropdown .options {
    position: absolute;
    top: calc(100% + 5px);
    left: 0;
    width: 100%;
    background-color: rgb(40, 40, 40);
    border: 2px solid rgb(201, 201, 201);
    border-top: none; 
    border-radius: 0 0 10px 10px; 
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    z-index: 10;
    max-height: 0;
    visibility: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, visibility 0s linear, opacity 0s linear;
}
.category-dropdown .options.active {
    max-height: 300px; /* Adjust according to the number of options */
    visibility: visible;
    opacity: 1;
    transition: max-height 0.3s ease, visibility 0s linear, opacity 0.3s linear;
}
.category-dropdown .options.closing {
    max-height: 0;
    visibility: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, visibility 0s linear, opacity 0.3s linear;
}
.category-dropdown .option {
    padding: 10px;
    color: rgb(245, 245, 245);
    cursor: pointer;
}
.category-dropdown .option:hover {
    background-color: rgb(60, 60, 60);
}
@keyframes curtainOpen {
    0% {
        max-height: 0;
    }
    100% {
        max-height: 300px; /* Adjust according to the number of options */
    }
}
@keyframes curtainClose {
    0% {
        max-height: 300px; /* Adjust according to the number of options */
    }
    100% {
        max-height: 0;
    }
}
/**/
/* Content */
/**/
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    justify-content: center;
    gap: 20px;
    padding: 20px;
    max-width: 1500px;
    margin: 0 auto;
    align-content: space-evenly;
    align-items: start;
    justify-items: center;
}

@media (min-width: 1500px) {
    .content-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.content-item {
    position: relative;
    text-align: left;
    background: rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    max-width: 320px;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.content-item:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.thumbnail-container {
    position: relative;
    margin-bottom: 10px;
    border-radius: 10px;
    overflow: hidden;
    width: 100%;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    background-color: #000;
    filter: brightness(0.8); /* Initial hover effect */
    transition: filter 0.3s ease;
}

.thumbnail-container:hover {
    filter: brightness(1); /* Hover effect */
}

.thumbnail-container img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
    transition: opacity 0.3s ease;
}

.thumbnail-container:hover img {
    opacity: 0.8;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background-image: url('../images/p3.png');
    background-size: cover;
    cursor: pointer;
    opacity: 0; 
    transition: opacity 0.3s ease;
}

.thumbnail-container:hover .play-button {
    opacity: 1;
}

.duration-overlay {
    position: absolute;
    bottom: 5px;
    right: 5px;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 2px 5px;
    border-radius: 3px;
    font-size: 12px;
}

.fullscreen-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 5px 10px;
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    border: none;
    cursor: pointer;
    display: none;
}

.thumbnail-container:hover .fullscreen-button {
    display: block;
}

.picture-info {
    padding: 10px 5px;
}

.video-name {
    color: #fff;
    font-size: 14px;
    margin-bottom: 5px;
    font-weight: bold;
}

.video-author {
    color: #aaa;
    font-size: 12px;
}