/**
 * Сайдбар
 * Версия: 1.0.0
 * Дата: 22.01.2026
 */

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-success) 100%);
    color: white;
    padding: calc(var(--spacing-lg) + var(--safe-area-top, 0px)) 0;
    z-index: 1000;
    /* allow long menus to scroll on short screens */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.sidebar-logo {
    font-size: 1.2rem;
    font-weight: bold;
    padding: 0 var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid rgba(255,255,255,0.2);
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.sidebar-logo #tenant-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-logo .sidebar-version {
    font-size: 0.7rem;
    font-weight: normal;
    opacity: 0.9;
}

.sidebar-menu {
    list-style: none;
    padding: var(--spacing-sm) 0;
    margin: 0;
    /* extra padding so last item isn't hidden */
    padding-bottom: var(--spacing-lg);
}

.sidebar-menu li {
    margin: 0;
}

.sidebar-menu a {
    display: block;
    padding: 0.5rem var(--spacing-sm);
    color: white;
    text-decoration: none;
    transition: background var(--transition-normal);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: rgba(255,255,255,0.15);
}

/* ===== Mobile sidebar (hamburger + overlay) ===== */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 950;
}

.sidebar-toggle-btn {
    display: none; /* показываем на мобильных */
    appearance: none;
    border: 1px solid rgba(0,0,0,0.08);
    background: #fff;
    border-radius: var(--radius-md);
    padding: 8px 10px;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.sidebar-toggle-btn:active {
    transform: translateY(1px);
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-110%);
        transition: transform var(--transition-slow);
        box-shadow: var(--shadow-lg);
    }

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

    .sidebar-overlay {
        display: block;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-slow);
    }

    body.sidebar-open .sidebar-overlay {
        opacity: 1;
        pointer-events: auto;
    }

    .sidebar-toggle-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 44px; /* touch target */
        min-height: 44px;
    }

    /* allow scrolling sidebar menu on mobile */
    .sidebar-menu {
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* ===== Коллапсируемые группы ===== */
.sidebar-group-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.75;
    padding: 0.6rem var(--spacing-sm) 0.25rem;
    margin-top: 0.35rem;
}

.sidebar-collapsible {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: opacity var(--transition-normal);
}

.sidebar-collapsible:hover {
    opacity: 1 !important;
}

.sidebar-group-arrow {
    font-size: 0.85em;
    display: inline-block;
    transition: transform 0.2s ease;
    line-height: 1;
}

.sidebar-collapsible.collapsed .sidebar-group-arrow {
    transform: rotate(-90deg);
}

.sidebar-submenu {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 500px;
    overflow: hidden;
    transition: max-height 0.25s ease, opacity 0.2s ease;
    opacity: 1;
}

.sidebar-submenu.sidebar-submenu-collapsed {
    max-height: 0;
    opacity: 0;
}