html, body {
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
    font-family: "Montserrat", Arial, sans-serif;
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
}

.sidebar {
    height: 100vh;
    background: linear-gradient(180deg, #0d6efd 0%, #0a58ca 100%);
    color: #fff;
    width: 220px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    z-index: 1000;
    position: fixed;
    left: 0;
    top: 0;
    transition: width 0.2s;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed {
    width: 48px;
    min-width: 48px;
    max-width: 48px;
}


.sidebar-header {
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 16px 12px 16px 18px;
    min-height: 56px;
    cursor: pointer;
}

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

.sidebar .sidebar-title {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    justify-content: flex-start;
}

.sidebar.collapsed .sidebar-title {
    justify-content: center;
    width: 100%;
}

.sidebar.collapsed .sidebar-title .nav-text {
    display: none !important;
}

.sidebar .sidebar-toggle-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 22px;
    cursor: pointer;
    margin-left: auto;
    margin-right: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.sidebar.collapsed .sidebar-toggle-btn {
    display: none;
}

#sidebarMenu {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    height: 100%;
    padding: 0;
    margin: 0;
}

.sidebar .nav-link {
    color: #fff !important;
    font-weight: 500;
    margin-bottom: 8px;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    min-height: 44px;
    font-size: 1.07rem;
    justify-content: flex-start;
    padding: 0 16px;
    box-shadow: none !important;
}

.sidebar .nav-link.active,
.sidebar .nav-link:hover {
    background: rgba(255,255,255,0.15);
    color: #fff !important;
    box-shadow: none !important;
}

.sidebar .nav-link i {
    width: 32px;
    min-width: 32px;
    text-align: center;
    font-size: 1.6em;
    display: inline-block;
    box-shadow: none !important;
    border-bottom: none !important;
}

.sidebar .nav-link:hover i,
.sidebar .nav-link.active i {
    border-bottom: none !important;
    box-shadow: none !important;
}

.sidebar.collapsed .nav-link {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
}

.sidebar .nav-text {
    margin-left: 12px;
    transition: opacity 0.2s, width 0.2s;
    display: inline-block;
}

.sidebar.collapsed .nav-text,
.sidebar.collapsed .fa-chevron-down,
.sidebar.collapsed .jahr-dropdown {
    display: none !important;
}

.sidebar .collapse,
.sidebar .collapsing {
    transition: none;
}

.sidebar.collapsed .collapse,
.sidebar.collapsed .collapsing {
    display: none !important;
}

.jahr-dropdown {
    margin: 24px 0 0 0;
    padding: 0 16px;
    transition: opacity 0.2s;
}

.sidebar .form-label,
.sidebar .form-select {
    font-size: 0.95rem;
}

.sidebar.collapsed ~ .main-content {
    margin-left: 60px;
}

.main-content {
    margin-left: 220px;
    transition: margin-left 0.2s;
}
.sidebar.collapsed ~ .main-content {
    margin-left: 48px;
}

@media (max-width: 991px) {
    .sidebar {
        width: 60px;
    }
    .sidebar:not(.collapsed) {
        width: 220px;
    }
}