/* Sidebar Navigation Styles */
.page-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: white;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 1000;
    transition: width 0.3s ease;
}

.sidebar-header {
    padding: 20px 20px 10px;
    border-bottom: none;
    margin-bottom: 20px;
}

.sidebar-logo {
    color: #333;
    text-decoration: none;
    display: flex;
    align-items: center;
    margin-bottom: 5px;
    text-align: left;
}

.sidebar-logo i {
    font-size: 28px;
    color: #6200ee;
}

.sidebar-logo span {
    font-weight: bold;
    font-size: 24px;
    margin-left: 10px;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.sidebar-nav a {
    color: #333;
    text-decoration: none;
    padding: 12px 20px;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
}

.sidebar-nav a:hover {
    background-color: #f8f9fa;
}

.sidebar-nav a.active {
    background-color: #e6e6fa;
    color: #6200ee;
    font-weight: 500;
    border-left: 4px solid #6200ee;
}

.sidebar-nav a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.sidebar-nav a span {
    transition: opacity 0.2s ease;
}

.main-content {
    margin-left: 250px;
    flex-grow: 1;
    padding: 20px;
    background-color: #f0f2f5;
    transition: margin-left 0.3s ease;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid #eee;
    font-size: 0.8rem;
    color: #666;
}

/* Teacher information section */
.teacher-info {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 10px 20px;
    margin-top: 10px;
    margin-bottom: 20px;
    transition: opacity 0.2s ease;
}

.profile-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #e6e6fa;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}

.teacher-name {
    font-weight: 500;
}

/* Responsive design */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
        padding: 20px 0;
    }
    
    .sidebar-header {
        padding: 0 10px 20px;
    }
    
    .sidebar-logo {
        font-size: 18px;
        text-align: center;
    }
    
    .sidebar-nav a span {
        display: none;
    }
    
    .sidebar-nav a {
        padding: 12px 0;
        justify-content: center;
    }
    
    .sidebar-nav a i {
        margin-right: 0;
    }
    
    .main-content {
        margin-left: 60px;
    }
    
    .teacher-info, .sidebar-footer {
        display: none;
    }
}

/* Sidebar toggle button (edge position) */
.sidebar-toggle-center {
    position: fixed;
    top: 50%;
    left: 250px; /* Positioned at the right edge of the expanded sidebar */
    transform: translateY(-50%);
    width: 30px;
    height: 60px;
    background-color: #6200ee;
    color: white;
    border: none;
    border-radius: 0 40px 40px 0; /* Rounded on the right side */
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: left 0.3s;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.2);
    padding-right: 5px;
}

.sidebar.collapsed + .sidebar-toggle-center {
    left: 60px; /* Move to the right edge of the collapsed sidebar */
}

.sidebar-toggle-center i {
    font-size: 18px;
    transition: transform 0.3s;
}

.sidebar.collapsed + .sidebar-toggle-center i {
    transform: rotate(180deg); /* Rotate to point right when collapsed */
}

/* Add this for future collapsible functionality */
.sidebar.collapsed {
    width: 60px;
}

.sidebar.collapsed .sidebar-logo span {
    opacity: 0;
    display: none;
}

.sidebar.collapsed .sidebar-logo {
    justify-content: center;
}

.sidebar.collapsed .sidebar-nav a span {
    opacity: 0;
    display: none;
}

.sidebar.collapsed .sidebar-nav a {
    padding: 12px 0;
    justify-content: center;
}

.sidebar.collapsed .sidebar-nav a i {
    margin-right: 0;
}

.sidebar.collapsed .main-content {
    margin-left: 60px;
}

.sidebar.collapsed .teacher-info {
    opacity: 0;
    visibility: hidden;
}

.sidebar.collapsed .sidebar-footer {
    display: none;
}