:root {
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 70px;
    --sidebar-bg: #f8f9fa;
    --sidebar-selected-bg: #7a95b1;
    --sidebar-hover-bg: #7b7bb2;
    --sidebar-color: #2b4f74;
    --sidebar-hover-color: #f8f5f0;
    --sidebar-border-radius: 15px;
    --menu-item-border-radius: 10px;
    --icon-size: 24px;
    --icon-min-size: 20px;
    --toggle-icon-size: 20px;
    --hamburger-size: 24px;
}

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--sidebar-bg);
    transition: all 0.3s;
    border-radius: 0 var(--sidebar-border-radius) var(--sidebar-border-radius) 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

    .sidebar.collapsed {
        width: var(--sidebar-collapsed-width);
    }

.sidebar-header, .sidebar-footer {
    padding: 15px;
    text-align: center;
    font-weight: bold;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity 0.3s;
}

.sidebar-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 10px;
}

.sidebar-link {
    padding: 10px 15px;
    color: var(--sidebar-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: background-color 0.3s;
    border-radius: var(--menu-item-border-radius);
    margin-bottom: 5px;
    white-space: nowrap;
    overflow: hidden;
}

    .sidebar-link:hover {
        background-color: var(--sidebar-hover-bg);
        color: var(--sidebar-hover-color);
    }

    .sidebar-link.active {
        background-color: var(--sidebar-selected-bg);
        color: var(--sidebar-hover-color);
    }

    .sidebar-link svg {
        width: var(--icon-size);
        height: var(--icon-size);
        min-width: var(--icon-min-size);
        min-height: var(--icon-min-size);
        margin-right: 10px;
        transition: transform 0.3s;
    }

.sidebar.collapsed .sidebar-link span,
.sidebar.collapsed .sidebar-header,
.sidebar.collapsed .sidebar-footer span {
    display: none;
}

.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    transition: all 0.3s;
    padding: 20px;
}

.sidebar.collapsed + .main-content {
    margin-left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
}

#toggleSidebar {
    bottom: 10px;
    left: 50%;
    background: none;
    border: none;
    color: var(--sidebar-color);
    cursor: pointer;
    padding: 5px;
    transition: all 0.3s;
    z-index: 1002;
}

    #toggleSidebar svg {
        width: var(--toggle-icon-size);
        height: var(--toggle-icon-size);
        transition: transform 0.3s;
    }

.sidebar.collapsed #toggleSidebar {
    left: calc(var(--sidebar-collapsed-width) / 2);
}

    .sidebar.collapsed #toggleSidebar svg {
        transform: rotate(180deg);
    }

#hamburger-btn {
    display: none;
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 1001;
    background: none;
    border: none;
    font-size: var(--hamburger-size);
    color: var(--sidebar-color);
    cursor: pointer;
}

@media (max-width: 1024px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }

    .sidebar-link span,
    .sidebar-header,
    .sidebar-footer span {
        display: none;
    }

    .main-content {
        margin-left: var(--sidebar-collapsed-width);
        width: calc(100% - var(--sidebar-collapsed-width));
    }

    #toggleSidebar {
        left: calc(var(--sidebar-collapsed-width) / 2);
    }

        #toggleSidebar svg {
            transform: rotate(180deg);
        }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

        .sidebar.show {
            transform: translateX(0);
        }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    #hamburger-btn {
        display: block;
    }

    #toggleSidebar {
        display: none;
    }
}