/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-color);
    color: white;
    box-shadow: 2px 0 5px rgba(0,0,0,0.1);
    position: relative;
}

.sidebar-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--secondary-color);
}

.sidebar-footer {
    border-top: 1px solid var(--secondary-color);
    position: absolute;
    bottom: 40px;
    width: 100%;
}

.sidebar-footer div {
    padding: 15px 20px;
}

.sidebar-footer a div {
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s;
}

.sidebar-footer a:hover div {
    background-color: var(--hover-color);
    color: #fff;
}

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

.sidebar-nav li {
    margin: 0;
}

.sidebar-nav a {
    display: block;
    padding: 12px 20px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s;
}

.sidebar-nav a:hover {
    background-color: var(--hover-color);
    color: #fff;
}

.sidebar-nav a.active {
    background-color: var(--accent-color);
    color: white;
}

/* Mobile sidebar */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 999;
        overflow-y: auto;
        display: flex;
        flex-direction: column;
        padding-top: 56px;
        visibility: hidden;
        opacity: 0;
        transition: opacity 0.2s ease, visibility 0s linear 0.2s;
    }

    .sidebar.open {
        visibility: visible;
        opacity: 1;
        transition: opacity 0.2s ease, visibility 0s linear 0s;
    }

    .sidebar-header {
        display: none;
    }

    .sidebar-nav {
        flex: 1;
        padding: 0.5rem 0;
    }

    .sidebar-nav a {
        padding: 16px 24px;
        font-size: 1.05rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .sidebar-nav a.active {
        border-left: 3px solid var(--accent-color);
    }

    .sidebar-footer {
        position: static !important;
        bottom: auto !important;
        margin-top: auto;
        padding: 0.75rem 0;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .sidebar-footer a div {
        padding: 14px 24px;
        font-size: 0.95rem;
    }
}