/* ============================================
   Layout & Container
   ============================================ */
#app {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    position: relative;
    padding: 0;
}

@media (max-width: 768px) {
    #app {
        padding: 0;
    }
}

/* ============================================
   Sidebar (Mobile: Drawer, Desktop: Permanent)
   ============================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width-mobile);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 2px solid var(--accent-primary);
    z-index: 2000;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    padding: var(--spacing-lg);
    box-shadow: 4px 0 12px rgba(0, 0, 0, 0.5);
}

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

@media (min-width: 769px) {
    #app {
        max-width: 100%;
    }

    .sidebar {
        position: fixed;
        transform: translateX(0);
        width: var(--sidebar-width);
    }

    .sidebar-overlay {
        display: none;
    }

    .hamburger-btn {
        display: none;
    }

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

/* Sidebar Header */
.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--accent-primary);
}

.sidebar-header h2 {
    font-size: 1.2em;
    margin: 0;
    color: var(--accent-primary);
}

.sidebar-close {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.5em;
    cursor: pointer;
    padding: var(--spacing-xs);
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.2s;
}

.sidebar-close:hover {
    background: var(--bg-tertiary);
}

/* Sidebar Menu */
.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-menu-item {
    margin-bottom: var(--spacing-xs);
}

.sidebar-menu-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s;
    min-height: var(--touch-min);
    position: relative;
    font-size: 0.95em;
}

.sidebar-menu-link:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
    transform: translateX(4px);
}

.sidebar-menu-link.active {
    background: rgba(108, 92, 231, 0.2);
    color: var(--accent-primary);
    border-left: 3px solid var(--accent-primary);
    font-weight: 600;
}

/* Thematische Icons für Sidebar */
.sidebar-icon {
    font-size: 1.2em;
    width: 24px;
    text-align: center;
}

/* Hamburger Button (Mobile) */
.hamburger-btn {
    position: fixed;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    z-index: 1500;
    background: var(--bg-secondary);
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    width: var(--touch-min);
    height: var(--touch-min);
    border-radius: 6px;
    cursor: pointer;
    opacity: 30%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3em;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hamburger-btn:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    transform: scale(1.05);
}

.hamburger-btn:active {
    transform: scale(0.95);
}

/* Sidebar Overlay (Mobile) */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1900;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Main Content Area */
.main-content {
    width: 100%;
    transition: margin-left 0.3s ease;
}