/* Sidebar - Unified slide-in behavior across all screen sizes */

.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    z-index: 200;
    transform: translateX(-100%);
    width: min(85vw, 320px);
    max-width: 320px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: none;
    will-change: transform;
    overflow: visible;
}

.sidebar.show {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
}

/* Hide resizers since sidebar is now overlay-based */
.panel-resizer--sidebar {
    display: none !important;
}

/* Legacy collapsed class - no longer used but kept for compatibility */
.sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar.collapsed + .panel-resizer--sidebar {
    display: none;
}

/* Elegant collapsed pillar */
.sidebar.collapsed .sidebar-content {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

.sidebar-rail {
    position: absolute;
    inset: var(--pane-header-height) 0 var(--spacing-lg) 0;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg) 0;
}

.sidebar.collapsed .sidebar-rail {
    display: flex;
}

.rail-btn {
    appearance: none;
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--gray-600);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.rail-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.rail-btn:active {
    transform: translateY(0);
}

.rail-btn[aria-pressed="true"] {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: var(--gray-50);
    box-shadow: var(--shadow-md);
}

.rail-btn svg {
    width: 20px;
    height: 20px;
    display: block;
}

.sidebar-header {
    position: relative;
    min-height: var(--pane-header-height);
    display: flex;
    align-items: center;
}

/* Sidebar toggle button positioning */
.sidebar-header .icon-btn {
    position: relative;
    right: 0;
    top: 0;
}

/* Make sidebar collapse arrow bigger and more beautiful */
.sidebar-header .icon-btn svg {
    width: var(--topology-action-icon-size);
    height: var(--topology-action-icon-size);
}

.sidebar.collapsed .sidebar-header .icon-btn {
    position: static;
    margin: 0 auto;
}

.sidebar-header {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: none;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-bottom: 0;
    min-height: var(--pane-header-height);
}

.sidebar-header-title {
    display: none;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    flex: 1;
}

.sidebar-close-btn {
    display: none;
}

.sidebar-collapse-btn {
    display: flex;
}


/* Remove extra top spacing before first section for a tighter look */
.sidebar-content > .control-section:first-child {
    margin-top: 0;
}

.sidebar-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
}

.sidebar-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    border-radius: var(--radius-sm);
    color: var(--gray-500);
    transition: var(--transition-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.sidebar-toggle svg {
    width: 20px;
    height: 20px;
}

/* Sidebar collapsed state */
.sidebar.collapsed .sidebar-header {
    justify-content: center;
    padding: var(--spacing-lg) var(--spacing-md);
    display: flex;
    align-items: center;
    min-height: 70px;
}

.sidebar.collapsed .sidebar-header h2 {
    display: none;
}

.sidebar.collapsed .sidebar-toggle {
    margin: 0;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: visible; /* Allow dropdowns to extend horizontally */
    padding: var(--spacing-md);
}

.control-section {
    margin-bottom: var(--spacing-lg);
}

.control-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
    text-transform: none;
    letter-spacing: normal;
}

/* Sensitivity control moved to topology header with siren */