.erp-menu,
.erp-submenu {
    margin: 0;
    padding: 0;
    list-style: none;
}

.erp-menu {
    min-height: 100%;
    background: #0B1E2D;
}

.menu-item { position: relative; }

.menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 42px;
    padding: 8px 16px;
    line-height: 1.25;
    color: #fff;
    background: #0B1E2D;
    border-left: 4px solid transparent;
    border-bottom: 1px solid rgba(255,255,255,.07);
    text-decoration: none;
    transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.menu-link > i {
    width: 22px;
    margin-right: 8px;
    text-align: center;
    color: var(--menu-icon, #fff);
}

.menu-link span:first-of-type { flex: 1; text-align: left; }
.menu-link:hover { color: #fff; background: #123148; }
.menu-link:focus-visible { outline: 2px solid #fff; outline-offset: -3px; }

.menu-arrow {
    flex: 0 0 16px;
    margin-left: 8px;
    text-align: center;
    transition: transform .25s ease;
}

.menu-item.open > .menu-link .menu-arrow { transform: rotate(90deg); }

/* Division icon accents: each top-level menu group gets a distinct icon colour
   while the label text stays white. Unknown/new division codes fall back to a
   positional palette so every group still differs. */
.erp-menu > .menu-item { --menu-icon: #4DA3FF; }

.erp-menu > .menu-item:nth-child(1) { --menu-icon: #4DA3FF; }
.erp-menu > .menu-item:nth-child(2) { --menu-icon: #A3E635; }
.erp-menu > .menu-item:nth-child(3) { --menu-icon: #34D399; }
.erp-menu > .menu-item:nth-child(4) { --menu-icon: #FBBF24; }
.erp-menu > .menu-item:nth-child(5) { --menu-icon: #A78BFA; }
.erp-menu > .menu-item:nth-child(6) { --menu-icon: #22D3EE; }
.erp-menu > .menu-item:nth-child(7) { --menu-icon: #F87171; }
.erp-menu > .menu-item:nth-child(8) { --menu-icon: #F472B6; }
.erp-menu > .menu-item:nth-child(9) { --menu-icon: #93C5FD; }

/* Approved division accents override the positional palette. */
.erp-menu > [data-menu-code="DASHBOARD"] { --menu-icon: #4DA3FF; }
.erp-menu > [data-menu-code="MASTERS"] { --menu-icon: #93C5FD; }
.erp-menu > [data-menu-code="TRANSACTIONS"] { --menu-icon: #10B981; }
.erp-menu > [data-menu-code="ACCOUNTS"] { --menu-icon: #F59E0B; }
.erp-menu > [data-menu-code="REPORTS"] { --menu-icon: #8B5CF6; }
.erp-menu > [data-menu-code="UTILITIES"] { --menu-icon: #06B6D4; }
.erp-menu > [data-menu-code="ADMIN"] { --menu-icon: #EF4444; }

/* Active/expanded divisions use one primary-blue identity and a structural marker. */
.erp-menu > .menu-item.active-trail > .menu-link,
.erp-menu > .menu-item.open > .menu-link,
[data-menu-code="ACCOUNTS"].active-trail > .menu-link,
[data-menu-code="ACCOUNTS"].open > .menu-link {
    color: #fff;
    background: #0D6EFD;
    border-left-color: #fff;
    font-weight: 600;
}

.erp-menu > .menu-item.active-trail > .menu-link > i,
.erp-menu > .menu-item.open > .menu-link > i,
[data-menu-code="ACCOUNTS"].active-trail > .menu-link > i,
[data-menu-code="ACCOUNTS"].open > .menu-link > i { color: #fff; }

.erp-submenu {
    display: none;
    background: #E7F1FF;
}

.menu-item.open > .erp-submenu { display: block; }

.erp-submenu .menu-link {
    min-height: 38px;
    padding: 7px 16px 7px 30px;
    color: #0B1E2D;
    background: #E7F1FF;
    border-left-color: transparent;
    border-bottom-color: rgba(11,30,45,.08);
}

.erp-submenu .menu-link > i { color: var(--menu-icon, #334155); }
.erp-submenu .menu-link:hover { color: #0B1E2D; background: #D0E4FF; }

/* Submenu icons: each item gets its own darker shade so it stands out on the
   light submenu background instead of sharing the parent division colour. */
.erp-submenu > .menu-item { --menu-icon: #1D4ED8; }
.erp-submenu > .menu-item:nth-child(1) { --menu-icon: #1D4ED8; }
.erp-submenu > .menu-item:nth-child(2) { --menu-icon: #15803D; }
.erp-submenu > .menu-item:nth-child(3) { --menu-icon: #B45309; }
.erp-submenu > .menu-item:nth-child(4) { --menu-icon: #6D28D9; }
.erp-submenu > .menu-item:nth-child(5) { --menu-icon: #0E7490; }
.erp-submenu > .menu-item:nth-child(6) { --menu-icon: #B91C1C; }
.erp-submenu > .menu-item:nth-child(7) { --menu-icon: #BE185D; }
.erp-submenu > .menu-item:nth-child(8) { --menu-icon: #4D7C0F; }
.erp-submenu > .menu-item:nth-child(9) { --menu-icon: #1E40AF; }
.erp-submenu > .menu-item:nth-child(n+10) { --menu-icon: #334155; }
.erp-submenu .menu-item.current > .menu-link {
    color: #0B1E2D;
    background: #D0E4FF;
    border-left-color: #0D6EFD;
    font-weight: 700;
}

.erp-submenu .erp-submenu .menu-link { padding-left: 45px; }
.erp-submenu .erp-submenu .erp-submenu .menu-link { padding-left: 60px; }

/* Preserve icon visibility for any existing collapsed-sidebar convention. */
.erp-sidebar.collapsed .menu-link,
.sidebar-collapsed .erp-sidebar .menu-link { justify-content: center; padding-inline: 10px; }
.erp-sidebar.collapsed .menu-link > i,
.sidebar-collapsed .erp-sidebar .menu-link > i { margin-right: 0; }
.erp-sidebar.collapsed .menu-link > span,
.sidebar-collapsed .erp-sidebar .menu-link > span { display: none; }

@media (max-width: 768px) {
    .menu-link { min-height: 44px; }
    .erp-submenu .menu-link { min-height: 42px; }
}