/* v4.1 sidebar layout and top-bar menus (language, theme). Loaded after style.css and modern.css;
   colours come from the shared tokens so the light/dark themes in theme.css apply here too. */
:root {
    --sb-width: 272px;
    --sb-rail: 84px;
}

.app { grid-template-columns: var(--sb-width) 1fr; }
.app.collapsed { grid-template-columns: var(--sb-rail) 1fr; }

/* ---------- Shell ---------- */
.sidebar {
    height: 100vh;
    padding: 16px 12px 12px;
    background: var(--panel, #fff);
    border-right: 1px solid var(--line, #e5e9f2);
    box-shadow: none;
    color: var(--text, #182338);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    overflow: hidden;
}

/* ---------- Brand ---------- */
.sidebar .brand {
    gap: 12px;
    padding: 4px 8px 16px;
    margin: 0 0 10px;
    background: none;
    border: 0;
    border-bottom: 1px solid var(--line, #e5e9f2);
    border-radius: 0;
    box-shadow: none;
}
.sidebar .brand .logo {
    width: 42px;
    height: 42px;
    border-radius: 13px;
    background: var(--primary, #4f46e5);
    color: #fff;
    box-shadow: 0 8px 18px rgba(var(--bs-primary-rgb, 79, 70, 229), .28);
    font-size: 19px;
}
.sidebar .brand .t1 { color: var(--text, #182338); font-size: 13.5px; line-height: 1.5; }

/* ---------- Menu ---------- */
.sidebar .menu {
    flex: 1;
    min-height: 0;
    gap: 2px;
    margin: 0 -4px;
    padding: 2px 4px 8px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--line, #e5e9f2) transparent;
}
.sidebar .menu::-webkit-scrollbar { width: 6px; }
.sidebar .menu::-webkit-scrollbar-thumb { background: var(--line, #e5e9f2); border-radius: 6px; }

.sidebar .navlink {
    gap: 12px;
    min-height: 42px;
    padding: 9px 12px;
    border: 0;
    border-radius: 10px;
    color: var(--text, #182338);
    font-size: 14px;
    text-decoration: none;
    box-shadow: none;
    transition: background .15s ease, color .15s ease;
}
.sidebar .navlink::before {
    display: block;
    left: 0;
    top: 9px;
    bottom: 9px;
    width: 3px;
    background: transparent;
}
.sidebar .navlink i { color: var(--muted, #64748b); font-size: 17px; min-width: 20px; }
.sidebar .navlink:hover {
    background: var(--bg-soft, #f8f9fc);
    color: var(--primary, #4f46e5);
    border-color: transparent;
    box-shadow: none;
    transform: none;
}
.sidebar .navlink:hover i { color: var(--primary, #4f46e5); }
.sidebar .navlink:focus-visible { outline: 2px solid var(--primary, #4f46e5); outline-offset: 2px; }

.sidebar .navlink.active {
    background: var(--primary-soft, #eef2ff);
    color: var(--primary, #4f46e5);
    font-weight: 600;
    box-shadow: none;
}
.sidebar .navlink.active::before { background: var(--primary, #4f46e5); }
.sidebar .navlink.active i { color: var(--primary, #4f46e5); }

/* Groups */
.sidebar .sidebar-group-btn { color: var(--text, #182338); background: transparent; border: 0; }
.sidebar .sidebar-group-btn:hover { background: var(--bg-soft, #f8f9fc); color: var(--primary, #4f46e5); }
.sidebar .sidebar-group-btn.group-active { background: transparent; color: var(--primary, #4f46e5); font-weight: 600; }
.sidebar .sidebar-group-btn.group-active::before { background: transparent; }
.sidebar .sidebar-group-btn.group-active > i:first-child { color: var(--primary, #4f46e5); }
.sidebar .sidebar-group-btn .group-arrow { color: var(--muted, #64748b); font-size: 12px; }
.sidebar .sidebar-group-btn[aria-expanded="true"] .group-arrow { color: var(--primary, #4f46e5); }

.sidebar .sidebar-submenu {
    margin: 2px 0 8px 22px;
    padding: 2px 0 2px 12px;
    border-left: 1px solid var(--line, #e5e9f2);
}
.sidebar .sidebar-submenu .submenu-link {
    min-height: 36px;
    padding: 7px 10px;
    font-size: 13px;
    color: var(--muted, #64748b);
    background: transparent;
    font-weight: 400;
}
.sidebar .sidebar-submenu .submenu-link::before { display: none; }
.sidebar .sidebar-submenu .submenu-link i { font-size: 14px; }
.sidebar .sidebar-submenu .submenu-link:hover { transform: none; color: var(--primary, #4f46e5); }
.sidebar .sidebar-submenu .submenu-link.active { background: var(--primary-soft, #eef2ff); color: var(--primary, #4f46e5); font-weight: 600; }

.sidebar .badge-new {
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    font-size: 10.5px;
    background: #ef4444;
    box-shadow: none;
}

/* ---------- Bottom ---------- */
.sidebar .sidebar-bottom {
    margin: 8px -4px 0;
    padding: 10px 4px 0;
    border-top: 1px solid var(--line, #e5e9f2);
}
.sidebar .sidebar-bottom .text-danger:hover { background: rgba(239, 68, 68, .08); color: #dc2626 !important; }

/* ---------- Desktop collapsed rail ---------- */
.app.collapsed .sidebar { padding-inline: 10px; }
.app.collapsed .sidebar .brand { justify-content: center; padding-inline: 0; }
.app.collapsed .sidebar .navlink { justify-content: center; padding-inline: 0; }

/* ---------- Tablet & phone: slide-in drawer ---------- */
.sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1040;
    background: rgba(15, 23, 42, .45);
    backdrop-filter: blur(2px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .2s ease, visibility .2s ease;
}

@media (max-width: 992px) {
    .app, .app.collapsed { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        width: min(var(--sb-width), 86vw);
        z-index: 1050;
        transform: translateX(-102%);
        transition: transform .25s ease;
        box-shadow: 8px 0 32px rgba(15, 23, 42, .18);
    }
    .sidebar.mobile-open { transform: none; }
    .sidebar-backdrop.show { opacity: 1; visibility: visible; }
    body.sidebar-open { overflow: hidden; }

    /* Undo the old icon-only rail on small screens. */
    .sidebar .brand .text,
    .sidebar .navlink span,
    .sidebar .menu-label { display: block; }
    .sidebar .badge-new { display: flex; }
    .sidebar .navlink { justify-content: flex-start; padding: 9px 12px; }
    .sidebar .sidebar-group-btn .group-arrow { display: block !important; }
}
@media (prefers-reduced-motion: reduce) {
    .sidebar, .sidebar-backdrop { transition: none; }
}

/* ---------- Top-bar icon menus: language and theme ---------- */
.topbar-menus { display: flex; align-items: center; gap: 6px; }
.lang-menu .lang-toggle,
.theme-menu .theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    height: 38px;
    min-width: 38px;
    padding: 0 10px;
    border: 1px solid var(--line, #e5e9f2);
    border-radius: 11px;
    background: var(--panel, #fff);
    color: var(--text, #182338);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .04em;
}
.theme-menu .theme-toggle { padding: 0; }
.lang-menu .lang-toggle i,
.theme-menu .theme-toggle i { font-size: 16px; color: var(--primary, #4f46e5); }
.lang-menu .lang-toggle:hover,
.lang-menu .lang-toggle[aria-expanded="true"],
.theme-menu .theme-toggle:hover,
.theme-menu .theme-toggle[aria-expanded="true"] { border-color: var(--primary, #4f46e5); background: var(--primary-soft, #eef2ff); }
.lang-menu .lang-toggle::after,
.theme-menu .theme-toggle::after { display: none; }

.lang-menu .dropdown-menu,
.theme-menu .dropdown-menu { padding: 6px; border: 1px solid var(--line, #e5e9f2); border-radius: 12px; box-shadow: 0 12px 32px rgba(24, 35, 56, .14); }
.lang-menu .dropdown-menu { min-width: 150px; }
.lang-menu .dropdown-item,
.theme-menu .dropdown-item { display: flex; align-items: center; gap: 10px; border-radius: 8px; padding: 8px 10px; font-size: 14px; }
.lang-menu .dropdown-item .lang-code {
    display: inline-grid;
    place-items: center;
    width: 28px;
    height: 22px;
    border-radius: 6px;
    background: var(--bg-soft, #f1f5f9);
    color: var(--muted, #64748b);
    font-size: 10.5px;
    font-weight: 700;
}
.lang-menu .dropdown-item.active,
.theme-menu .dropdown-item.active { background: var(--primary-soft, #eef2ff); color: var(--primary, #4f46e5); }
.lang-menu .dropdown-item.active .lang-code { background: var(--primary, #4f46e5); color: #fff; }
.lang-menu .dropdown-item .bi-check2,
.theme-menu .dropdown-item .bi-check2 { margin-left: auto; }

.theme-menu .dropdown-menu { width: 220px; }
.theme-menu .theme-heading { padding: 6px 10px 4px; font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted, #64748b); }
.theme-menu .theme-swatches { display: flex; gap: 8px; padding: 6px 10px 8px; }
.theme-menu .theme-swatch {
    width: 28px;
    height: 28px;
    border: 0;
    border-radius: 50%;
    background: var(--swatch);
    box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .35);
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
}
.theme-menu .theme-swatch:not(.active) i { visibility: hidden; }
.theme-menu .theme-swatch.active { box-shadow: 0 0 0 2px var(--panel, #fff), 0 0 0 4px var(--swatch); }
.theme-menu .theme-swatch:focus-visible { outline: 2px solid var(--text, #182338); outline-offset: 3px; }