/* ========================
   Sidebar expanded/collapsed behavior
   ======================== */

/* Sidebar container */
.sidebar {
    width: var(--sidebar-width, 220px);
    background-color: var(--datalift-white-colour);
    color: var(--datalift-primarypairing-primary-colour);
    position: fixed;
    top: var(--navbar-height, 56px);
    bottom: 0;
    left: 0;
    padding-top: 1rem;
    overflow-y: auto;
    transition: width 0.3s ease;
    display: flex;
    flex-direction: column;
}

/* Collapsed sidebar */
.sidebar.collapsed {
    width: var(--sidebar-collapsed-width, 60px);
}

/* Sidebar header */
.sidebar .sidebar-header {
    display: flex;
    justify-content: space-between; /* expanded: text left, button right */
    align-items: center;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

/* Toggle button (hamburger) */
.sidebar-header button#sidebarToggle {
    border: none;
    background: transparent;
    color: var(--datalift-primarypairing-primary-colour);
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    transition: color 0.2s ease;
}

.sidebar-header button#sidebarToggle:hover {
    color: var(--datalift-primarypairing-secondary-colour);
}

/* Sidebar headings / section titles */
.sidebar-heading,
.sidebar-section {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--datalift-primarypairing-primary-colour);
    padding: 0.5rem 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 0.5rem;
    transition: opacity 0.2s ease;
}

/* Links */
.sidebar a {
    display: flex;
    align-items: center;
    color: var(--datalift-primarypairing-primary-colour);
    padding: 0.5rem 1rem;
    text-decoration: none;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Link icons hidden by default (expanded) */
.sidebar a i {
    display: none;
    font-size: 1.2rem;
    margin-right: 0.75rem;
}

/* Link text visible by default (expanded) */
.sidebar a .link-text {
    display: inline-block;
}

/* Hover effect */
.sidebar a:hover {
    background-color: var(--datalift-primarypairing-secondary-colour);
    color: #fff;
}

/* Collapsed sidebar adjustments */
.sidebar.collapsed .sidebar-heading,
.sidebar.collapsed .sidebar-section,
.sidebar.collapsed a .link-text,
.sidebar.collapsed .sidebar-filter {
    display: none; /* hide headings, link text, filter section */
}

/* Collapsed sidebar: show icons only, centered */
.sidebar.collapsed a i {
    display: inline-block;
    margin: 0 auto; /* center icons */
    font-size: 1.5rem;
}

/* Sidebar filter */
.sidebar-filter {
    padding: 0.5rem 1rem;
    display: block; /* visible when expanded */
}

/* Sidebar header text (Menu) */
.sidebar .sidebar-header span {
    display: inline-block; /* visible by default */
}

/* Hide header text in collapsed mode */
.sidebar.collapsed .sidebar-header span {
    display: none;
}

/* Center hamburger button in collapsed sidebar */
.sidebar.collapsed .sidebar-header {
    justify-content: center; /* center the button */
    padding: 0.5rem 0;
}

.sidebar-header span {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--datalift-primarypairing-primary-colour);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}