/* App Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 50;
    transition: width 0.3s ease, transform 0.3s ease;
    overflow: hidden;
}

/* Collapsed Sidebar State (Desktop Only) */
@media (min-width: 769px) {
    body.sidebar-collapsed .sidebar {
        width: 80px;
    }

    body.sidebar-collapsed .app-title,
    body.sidebar-collapsed .nav-group-title,
    body.sidebar-collapsed .sidebar-footer div {
        display: none;
    }

    body.sidebar-collapsed .nav-item {
        justify-content: center;
        padding: var(--spacing-sm);
        font-size: 0;
        /* Hide text nodes */
        gap: 0;
    }

    body.sidebar-collapsed .nav-item span:first-child {
        margin-right: 0;
        font-size: 1.5rem;
        /* Restore icon size */
        display: block;
    }

    body.sidebar-collapsed .sidebar-header {
        justify-content: center;
        padding: var(--spacing-md);
    }

    body.sidebar-collapsed .sidebar-header .app-title {
        display: none;
    }

    body.sidebar-collapsed #sidebar-toggle {
        transform: rotate(180deg);
    }

    body.sidebar-collapsed .sidebar-footer {
        padding: 10px 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    body.sidebar-collapsed .sidebar-footer #theme-toggle {
        width: 60px !important;
        padding: 0 !important;
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 0 !important;
        margin-bottom: 10px;
        height: 40px;
        font-size: 0 !important;
        /* Hide any text */
    }

    body.sidebar-collapsed .sidebar-footer #theme-toggle::after {
        font-size: 1.2rem;
        /* Restore icon size */
    }

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

.sidebar-header {
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

.app-title {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    white-space: nowrap;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    overflow-x: hidden;
    min-height: 0;
}

.nav-group {
    margin-bottom: var(--spacing-lg);
}

.nav-group-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-sm);
    white-space: nowrap;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 2px;
    white-space: nowrap;
    text-decoration: none;
}

.nav-item:hover {
    background-color: rgba(99, 102, 241, 0.1);
    /* Primary with opacity */
    color: var(--primary-color);
}

.nav-item.active {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
    flex-shrink: 0;
}



.footer-link:hover {
    color: var(--primary-color) !important;
    text-decoration: underline;
}

.footer-links {
    margin-bottom: 10px;
    font-size: 0.8rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}



/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    /* Sidebar width */
    padding: var(--spacing-xl);
    max-width: 1600px;
    transition: margin-left 0.3s ease;
}

body.sidebar-collapsed .main-content {
    margin-left: 80px;
}

.view-section {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.view-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Toggle */
.menu-toggle {
    display: none;
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-full);
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    cursor: pointer;
    border: none;
    padding: 0;
}

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

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

    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
        padding-bottom: 80px;
        /* Space for toggle */
    }

    body.sidebar-collapsed .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    #sidebar-toggle {
        display: none;
    }

    /* Sidebar Overlay */
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        z-index: 40;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .sidebar.open~.sidebar-overlay,
    .sidebar-overlay.open {
        opacity: 1;
        visibility: visible;
    }
}