@import url("https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap");
@import url("https://fonts.googleapis.com/css2?family=League+Gothic&family=Open+Sans:ital,wght@0,300..800;1,300..800&family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap");

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Open sans", sans-serif;
}
/* -----color variables for light theme----- */
:root{
    --white-color: #fff;
    --black-color: #000;
    --light-white-color: #f0f0f0;
    --light-gray-color: #e5e5e5;
    --border-color: #d4d4d4;
    --primary-color: #3b82f6;
    --secondary-color: #404040;
    --overlay-dark-color: rgba(0,0,0,0.6);

}
body.dark-mode{
    --white-color: #171717;
    --black-color: #d4d4d4;
    --light-white-color: #333;
    --light-gray-color: #404040;
    --border-color: #737373;
    --primary-color: #3b82f6;
    --secondary-color: #d4d4d4;
    --overlay-dark-color: rgba(0,0,0,0.6);
}
body{
    background: var(--white-color);
}
.container {
    display: flex;
    flex-direction: column;
    max-height: 100vh;
}
header, .category-list{
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--white-color);
}
.navbar{
    display: flex;
    gap: 2rem;
    align-items: center;
    padding: 0.5rem 1rem;
    justify-content: space-between;
}
.container :where(.nav-section, .search-form, .nav-logo){
    display: flex;
    align-items: center;
}
.container .nav-section{
    gap: 1rem;
}
.container :where(.logo-image, .user-image){
    width: 32px;
    cursor: pointer;
}
.container .user-image{
    border-radius: 50%;
}
.container .nav-button{
    border: none;
    cursor: pointer;
    height: 40px;
    width: 40px;
    border-radius: 50% ;
    background: var(--white-color);
}
.container .nav-button:hover{
    background-color: var(--light-gray-color);
}
.container .nav-button i{
    color: var(--black-color);
    display: flex;
    font-size: 1.3rem;
    align-items: center;
    justify-content: center ;
}
.container .nav-logo{   
    gap: 0.5rem;
    display: flex;
    text-decoration: none;
}
.container .nav-logo .logo-text{
    font-size: 1.25rem;
    color: var(--black-color);
}
.navbar .nav-center{
    display: flex;
    width: 100%;
    gap: 0.5rem;
    justify-content: center;
}
.navbar .search-form {
    max-width: 550px;
    flex: 1;
    height: 40px;
}
.navbar .search-form .search-input{
    width: 100%;
    height: 100%;
    padding: 0 1rem;
    outline: none;
    font-size: 1rem;
    color: var(--black-color);
    background: var(--white-color);
    border-radius: 3.1rem 0 0 3.1rem;
    border: 1px solid var(--border-color);
}
.navbar .search-form .search-input:focus{
    border-color: var(--primary-color);
}
.navbar .search-form .search-button{
    width: auto;
    padding: 0 1.25rem;
    border-radius: 0 3.1rem 3.1rem 0;
    border: 1px solid var(--border-color) ;
    border-left: 0;
}
.navbar .nav-right .search-button{
    display: none;
}
.main-layout{
    display: flex;
    overflow-y: auto;
    scrollbar-color: #a6a6a6 transparent;
}


/* --------------Sidebar------------- */
.main-layout .sidebar{
    width: 280px;
    padding: 0 0.7rem 0;
    background: var(--white-color);
}

body.sidebar-hidden .main-layout .sidebar{
    width: 0;
    padding: 0;
}

.main-layout .sidebar .nav-left{
    display: none;
    padding: 0.5rem 0.3rem;
}

.sidebar .link-container{
    overflow-y: auto;
    padding: 1rem 0 2rem;
    scrollbar-width: thin;
    height: calc(100vh - 60px);
    scrollbar-color: transparent transparent;
}
.sidebar .link-container:hover{
    scrollbar-color: #a6a6a6 transparent;

}
.sidebar .link-section .link-item{
    display: flex ;
    align-items: center;
    font-size: 0.938rem;
    white-space: nowrap;
    padding: 0.37rem 0.75rem;
    margin-bottom: 0.25rem;
    color: var(--black-color);
    border-radius: 0.5rem;
    text-decoration: none;
}
.sidebar .link-section .link-item:hover{
    background: var(--light-gray-color);
}
.sidebar .link-section .link-item i {
    font-size: 1.2rem;
    margin-right: 0.63rem;
}
.sidebar .link-section .section-title{
    font-size: 0.938rem;
    font-weight: 600;
    color: var(--black-color);
    margin: 1rem 0 0.5rem 0.5rem;
}
.sidebar .section-separator{
    height: 1px;
    margin: 0.625rem;
    background: var(--light-gray-color);
}

.main-layout{
    display: flex;
}

.main-layout .content-wrapper{
    padding: 0 1rem;
    overflow-x: hidden;
    width: 100% ;
}

/* ------------Category List-------------- */
.content-wrapper .category-list{
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding: 0.75rem 0 0 0.7rem;
    scrollbar-width: none;
    z-index: 1;

}
.category-list .category-button{
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    padding: 0.4rem 0.75rem;
    border-radius: 0.5rem;
    color: var(--black-color);
    background: var(--light-gray-color);
    z-index: 1;
}
.category-list .category-button.active{
    color: var(--white-color);
    background: var(--black-color);
    pointer-events: none;
}
.category-list .category-button:hover{
    background: var(--border-color);
}


/* -----------video list------------------ */
.content-wrapper .video-list{
    display: grid;
    gap: 1rem;
    padding: 1.25rem 0 4rem;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.video-list .video-card {
    text-decoration: none;
}
.video-list .video-card .video-info {
    display: flex;
    gap: 0.7rem;
    padding: 0.7rem 0.5rem;
}
.video-list .video-card .thumbnail-container {
    position: relative;
}
.video-list .video-card .thumbnail {
    width: 100%;
    border-radius: 0.5rem;
    aspect-ratio: 16/9;
}
.video-list .video-card .duration {
    position: absolute;
    right: 0.65rem;
    bottom: 0.8rem;
    color: #fff;
    font-size: 0.875rem;
    padding: 0 0.3rem;
    border-radius: 0.3rem;
    background: var(--overlay-dark-color);
}
.video-list .video-card .icon {
    width: 36px;
    height: 36px;
    border-radius: 50%; 
}
.video-list .video-card .title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--black-color);
    overflow: hidden;
    display:  -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
.video-list .video-card .title:hover {
     color: var(--primary-color);
}
.video-list .video-card p {
    font-size: 0.875rem;
    color: var(--secondary-color);
}
.video-list .video-card .channel-name {
    margin: 0.25rem;
}


/* ------Dropdown Menu--------- */
.dropdown-menu {
    position: fixed;
    top: 1rem;
    right: 3rem;
    width: 17rem;
    background-color: var(--white-color);
    color: var(--black-color);
    z-index: 25;
    box-shadow: rgba(125, 125, 125, 0.684) 0px 6px 18px 0px;
    font-size: 0.9rem;
    display: none; /* Hidden by default */
    overflow-y: auto;
    height: calc(100vh - 4rem);
    border-radius: 10px;
}

.dropdown-menu::-webkit-scrollbar {
    width: 0.45rem;
}

.dropdown-menu::-webkit-scrollbar-thumb {
    background-color: #a6a6a6;
}

.menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-list li span{
    margin-left: 10px;
}

.menu-link {
    text-decoration: none;
    display: block;
    padding: 10px 15px;
    color: var(--black-color);
}

.menu-link:hover {
    background: var(--light-gray-color);
    border-radius: 5px;
}

.menu-divider {
    border: none;
    height: 1px;
    background-color: #ddd;
    margin: 10px 0;
}

/* Theme Toggle Button */
#theme-toggle-btn {
    display: block;
}




/* -----Responsive media queries------ */
@media (max-width: 768px) {

    .navbar .nav-center{
        display: none;
    }
    .navbar .nav-right .search-button{
        display: block;
    }
    .main-layout .screen-overlay{
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        z-index: 15;
        background: var(--overlay-dark-color);
        transition: 0.2s ease;
    }
    body.sidebar-hidden .main-layout .screen-overlay{
        opacity: 0;
        pointer-events: none;
    }

    .main-layout .sidebar{
        position: absolute;
        left: 0;
        top: 0;
        z-index: 20;
        height: 100vh;
        transition: 0.2s ease;
    }

    body.sidebar-hidden .main-layout .sidebar{
        left: -280px;
    }

    .main-layout .sidebar .nav-left{
        display: flex;
        
    }
}