/* ===== Sidebar ===== */
.sidebar {
    width: 260px;
    min-height: 100vh;
    background: var(--bs-body-bg);
    border-right: 1px solid var(--bs-border-color);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    transition: transform 0.2s ease;
}

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1039;
}

/* Mobile: hide sidebar by default */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    .sidebar-backdrop.show {
        display: block;
    }
}

/* Desktop: offset main content */
@media (min-width: 992px) {
    .main-content {
        margin-left: 260px;
    }
}

/* ===== Sidebar links ===== */
.sidebar-link {
    color: var(--bs-body-color);
    font-size: 0.9rem;
    transition: background 0.15s;
}
.sidebar-link:hover {
    background: var(--bs-tertiary-bg);
    color: var(--bs-body-color);
}
.sidebar-link.active {
    background: var(--bs-primary);
    color: #fff;
}

/* ===== User avatar ===== */
.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--bs-primary);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
}

/* ===== Header ===== */
.app-header {
    min-height: 56px;
    position: sticky;
    top: 0;
    z-index: 1030;
}