:root {
    --sidebar-color: #2c3e50;
    --topnav-color: #34495e;
    --footer-color: #2c3e50;
}



.sidebar {
    width: 240px;
    background: var(--sidebar-color);
    height: 100vh;
    position: fixed;
    transition: width 0.3s ease;
    overflow-x: hidden;
}

.sidebar.collapsed {
    width: 90px;
}
.logo-toggle {
    width: 50px;
    cursor: pointer;
}
.theme-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-block;
    margin: 5px;
    cursor: pointer;
    border: 2px solid #fff;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.theme-dot:hover {
    transform: scale(1.2);
    box-shadow: 0 0 6px rgba(0,0,0,0.3);
}

.topnav {
    height: 60px;
    background: var(--topnav-color);
    padding: 10px 20px;
    margin-left: 240px;
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed ~ .topnav {
    margin-left: 90px;
}

.content-area {
    margin-left: 240px;
    margin-top: 60px;
    padding: 20px;
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed ~ .content-area {
    margin-left: 90px;
}
.user-photo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
}

.footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    height: 35px;
    background: var(--footer-color);
    color: #fff;
    line-height: 35px;
}

.content-area {
    margin-left: 240px;
    margin-top: 60px;
    padding: 20px;
    padding-bottom: 60px;
    transition: 0.3s;
}
.sidebar.collapsed ~ .content-area {
    margin-left: 80px;
}

.menu-list a {
    padding: 12px 20px;
    display: block;
    color: #fff;
    white-space: nowrap;
}