/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10000;
    background-color: var(--bg-surface-alt);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

    .navbar .nav-link {
        color: var(--text-primary);
    }

        .navbar .nav-link:hover,
        .navbar .nav-link.active {
            color: var(--accent-primary);
        }

/* ============================================================
   LAYOUT SHELL & SIDEBAR
   ============================================================ */
.layout-shell {
    display: block;
}

.sidebar-desktop {
    width: var(--sidebar-expanded);
    height: 100vh;
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--bg-surface-alt);
    overflow-y: auto;
    overflow-x: hidden;
    transition: width 0.25s ease;
}

.layout-shell.collapsed .sidebar-desktop {
    width: var(--sidebar-collapsed);
    transition: width 0.25s ease 0.15s;
}

.sidebar-header {
    height: 57px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--frame-border);
}

.layout-shell.collapsed .sidebar-header {
    padding: 12px 0;
    overflow: hidden;
}

.sidebar-logo {
    height: 40px;
}

.layout-shell.collapsed .sidebar-logo {
    margin-left: 8px !important;
}

.layout-shell.collapsed .sidebar-title,
.layout-shell.collapsed .sidebar-version,
.layout-shell.collapsed .sidebar-user {
    display: none !important;
}

.sidebar-separator {
    height: 1px;
    background-color: transparent !important; /* var(--border-color);*/
    margin: 8px 0;
}

.layout-shell.collapsed .sidebar-separator {
    opacity: 0.4;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.layout-main {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.layout-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.topbar {
    position: sticky;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px;
    top: 0;
    z-index: 1000;
    background-color: var(--bg-surface-alt);
    border-bottom: 1px solid var(--frame-border);
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

@media (min-width: 992px) {
    .layout-main {
        margin-left: var(--sidebar-expanded);
    }

    .layout-shell.collapsed .layout-main {
        margin-left: var(--sidebar-collapsed);
    }
}