/* =========================================================
   Sidebar — ERP dark theme
   ========================================================= */

#sidebar {
    width: var(--sidebar-width, 220px);
    flex-shrink: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--sidebar-bg, #1a2535);
    border-right: none;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.18);
    transition: width 0.25s ease-in-out;
    overflow: hidden;
    z-index: 100;
}

/* =========================================================
   Header (logo + app name)
   ========================================================= */
.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 12px 12px;
    border-bottom: 1px solid var(--sidebar-border, rgba(255,255,255,0.08));
    flex-shrink: 0;
}

.sidebar-logo {
    width: 30px;
    height: 30px;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: 4px;
}

.sidebar-app-name {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--sidebar-text-active, #ffffff);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
    overflow: hidden;
}

/* =========================================================
   Navigation content
   ========================================================= */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 6px 6px;
    scrollbar-width: none;
}

.sidebar-content::-webkit-scrollbar { display: none; }

/* Group labels */
.sidebar-group-label {
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--sidebar-group, rgba(255,255,255,0.30));
    text-transform: uppercase;
    letter-spacing: 0.14em;
    padding: 14px 10px 4px;
    pointer-events: none;
    user-select: none;
    list-style: none;
}

/* Nav items */
.sidebar-item { list-style: none; }

a.sidebar-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 7px 10px;
    color: var(--sidebar-text, rgba(255,255,255,0.70));
    font-size: 0.72rem;
    font-weight: 500;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    position: relative;
    border-radius: 5px;
    border-left: 2px solid transparent;
    transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
    margin-bottom: 1px;
}

a.sidebar-link:hover {
    background: var(--sidebar-hover, rgba(255,255,255,0.07));
    color: var(--sidebar-text-active, #ffffff);
}

/* Active state */
.sidebar-item.active > a.sidebar-link {
    background: var(--sidebar-active, rgba(255,255,255,0.13));
    color: var(--sidebar-text-active, #ffffff);
    border-left-color: var(--sidebar-accent, #3b82f6);
    font-weight: 600;
    padding-left: 8px;
}

/* Icons */
.sidebar-link .bi {
    font-size: 1.1rem;
    line-height: 1;
    flex: 0 0 1.4rem;
    width: 1.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0.75;
}

.sidebar-item.active > a.sidebar-link .bi { opacity: 1; }

.sidebar-link label {
    margin: 0;
    display: block;
    line-height: 1.2;
    cursor: pointer;
}

/* =========================================================
   Dropdown menus (for future use)
   ========================================================= */
#sidebar .sidebar-link[data-bs-toggle="collapse"] { padding-right: 2.5rem; }

#sidebar .sidebar-link[data-bs-toggle="collapse"]::after {
    content: "›";
    font-size: 1.1rem;
    font-weight: 300;
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%) rotate(0deg);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.15s ease;
    color: var(--sidebar-text-active);
}

#sidebar .sidebar-link[data-bs-toggle="collapse"]:hover::after { opacity: 0.5; }

#sidebar .sidebar-item:has(.sidebar-dropdown.show)
    > .sidebar-link[data-bs-toggle="collapse"]::after {
    transform: translateY(-50%) rotate(90deg);
    opacity: 0.8;
}

#sidebar .sidebar-dropdown {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.25s ease-out, opacity 0.15s linear;
    will-change: max-height, opacity;
}

#sidebar .sidebar-dropdown.show {
    max-height: 500px;
    opacity: 1;
}

/* =========================================================
   Footer (logout + profile)
   ========================================================= */
.sidebar-footer {
    width: 100%;
    border-top: 1px solid var(--sidebar-border, rgba(255,255,255,0.08));
    padding: 8px 6px;
    flex-shrink: 0;
}

/* Logout link */
a.sidebar-link.sidebar-logout {
    color: rgba(255, 255, 255, 0.50);
    font-size: 0.68rem;
}

a.sidebar-link.sidebar-logout:hover {
    color: rgba(255, 255, 255, 0.85);
    background: rgba(255, 255, 255, 0.06);
}

/* Profile block */
.sidebar-profile {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 10px 4px;
}

.sidebar-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.9;
}

.sidebar-avatar-badge {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--sidebar-accent, #3b82f6);
    color: #fff;
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.sidebar-profile-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-user-name {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--sidebar-text-active, #ffffff);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 0.6rem;
    color: var(--sidebar-group, rgba(255,255,255,0.35));
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
}

/* =========================================================
   Collapsed state
   ========================================================= */
#sidebar.collapsed { width: 60px; }

#sidebar.collapsed .sidebar-link label,
#sidebar.collapsed .sidebar-app-name,
#sidebar.collapsed .sidebar-group-label,
#sidebar.collapsed .sidebar-profile-info,
#sidebar.collapsed .sidebar-user-name,
#sidebar.collapsed .sidebar-user-role {
    display: none;
}

#sidebar.collapsed .sidebar-item > a.sidebar-link {
    justify-content: center;
    padding: 8px;
    border-left: 2px solid transparent;
}

#sidebar.collapsed .sidebar-item.active > a.sidebar-link {
    border-left-color: var(--sidebar-accent, #3b82f6);
}

#sidebar.collapsed .sidebar-dropdown { display: none; }
#sidebar.collapsed .sidebar-logo { width: 28px; }

/* Resize cursor on the sidebar toggle */
#sidebarToggle:hover { cursor: ew-resize; }

/* =========================================================
   Mobile — sidebar as overlay drawer
   ========================================================= */
@media (max-width: 767.98px) {
    #sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100%;
        width: var(--sidebar-width, 220px) !important; /* always full-width drawer, never icon-only */
        transform: translateX(-100%);
        transition: transform 0.25s ease-in-out;
        z-index: 1050;
    }

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

    /* Re-show labels that collapsed state would hide */
    #sidebar.collapsed .sidebar-link label,
    #sidebar.collapsed .sidebar-app-name,
    #sidebar.collapsed .sidebar-group-label,
    #sidebar.collapsed .sidebar-profile-info,
    #sidebar.collapsed .sidebar-user-name,
    #sidebar.collapsed .sidebar-user-role {
        display: revert;
    }

    #sidebar.collapsed .sidebar-item > a.sidebar-link {
        justify-content: flex-start;
        padding: 7px 10px;
    }
}