/* ===================================
   Sidebar Styles
   =================================== */

/* Sidebar Container */
.sidebar {
    width: 200px;
    background: var(--color-background-2);
    backdrop-filter: blur(var(--blur-strength)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--blur-strength)) saturate(180%);
    padding: 20px 0;
    position: relative;
    border-right: var(--glass-border);
    transition: width 0.3s ease, padding 0.3s ease;
    overflow: hidden;
    z-index: 100;
}

.sidebar.collapsed {
    width: 60px;
    padding: 20px 5px;
    overflow: visible;
}

.sidebar.collapsed .sidebar-header h2 {
    display: none;
}

.sidebar.collapsed .nav-menu .menu-text {
    display: none;
}

.sidebar.collapsed .sidebar-header .icon.fa-bars,
.sidebar.collapsed .toggle-arrow,
.sidebar.collapsed .nav-menu .icon {
    opacity: 1;
    display: block;
}

.sidebar.collapsed .sidebar-header {
    justify-content: center;
    gap: 5px;
}

.sidebar.collapsed .nav-menu > li > a {
    justify-content: center;
    padding: 12px 5px;
}

/* Sidebar Content */
.sidebar-content {
    padding: 30px 15px 15px 15px;
}

/* Sidebar Header */
.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    cursor: pointer;
    user-select: none;
}

.sidebar-header .icon {
    width: 20px;
    height: 20px;
    filter: brightness(0) saturate(100%) invert(0%) sepia(0%) saturate(0%) hue-rotate(0deg);
    opacity: 0.7;
}

@media (prefers-color-scheme: dark) {
    .sidebar-header .icon {
        filter: brightness(0) saturate(100%) invert(100%) sepia(0%) saturate(0%) hue-rotate(0deg);
        opacity: 0.8;
    }
}

.sidebar-header:hover {
    opacity: 0.8;
}

.sidebar-header h2 {
    font-size: 14px;
    color: var(--color-foreground-1);
    font-weight: 600;
}

/* Toggle Arrow */
.toggle-arrow {
    margin-left: auto;
    width: 20px;
    height: 20px;
    filter: brightness(0) saturate(100%) invert(38%) sepia(78%) saturate(2476%) hue-rotate(195deg) brightness(94%) contrast(88%);
    transition: transform 0.3s ease;
}

.toggle-arrow:hover {
    filter: brightness(0) saturate(100%) invert(26%) sepia(78%) saturate(3476%) hue-rotate(195deg) brightness(84%) contrast(88%);
}

/* Navigation Menu */
.nav-menu {
    list-style: none;
    position: relative;
    z-index: 200;
}

.nav-menu > li {
    margin-bottom: 5px;
    position: relative;
}

.nav-menu > li > a {
    padding: 12px 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 4px;
    color: inherit;
    text-decoration: none;
    font-weight: normal;
}

.nav-menu > li > a:hover {
    background-color: var(--color-background-3);
}

.nav-menu > li.active > a {
    background-color: transparent;
    color: var(--color-primary);
    font-weight: bold;
}

.nav-menu > li.active .icon {
    filter: brightness(0) saturate(100%) invert(38%) sepia(78%) saturate(2476%) hue-rotate(195deg) brightness(94%) contrast(88%);
    width: 22px;
    height: 22px;
}

.nav-menu .icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    filter: brightness(0) saturate(100%) invert(0%) sepia(0%) saturate(0%) hue-rotate(0deg);
    opacity: 0.7;
}

@media (prefers-color-scheme: dark) {
    .nav-menu .icon {
        filter: brightness(0) saturate(100%) invert(100%) sepia(0%) saturate(0%) hue-rotate(0deg);
        opacity: 0.8;
    }
}

/* Tooltip für zugeklappte Sidebar */
.sidebar.collapsed .nav-menu > li > a::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 10px;
    padding: 8px 12px;
    background: var(--color-background-2);
    backdrop-filter: blur(var(--blur-strength)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--blur-strength)) saturate(180%);
    border: var(--color-border);
    border-radius: 8px;
    color: var(--color-foreground-1);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    box-shadow: 0 4px 16px var(--color-shadow);
    z-index: 1000;
}

.sidebar.collapsed .nav-menu > li > a:hover::after {
    opacity: 1;
}