name: Panels
description: A flexible container component that provides structured content areas with headers, bodies, and footers, supporting
  various layouts and content organization patterns for building complex interfaces.
category: Layout
slds_classes:
  root: slds-panel
  elements:
  - class: slds-panel__header
    description: Panel header section
    purpose: Contains panel title and header actions
  - class: slds-panel__body
    description: Panel content area
    purpose: Contains the main panel content
  - class: slds-panel__actions
    description: Panel action controls
    purpose: Contains buttons and interactive elements
  - class: slds-panel__close
    description: Panel close button
    purpose: Allows panel dismissal
  modifiers:
  - class: slds-panel_docked
    description: Docked panel layout
    usage: For panels attached to screen edges
  - class: slds-panel_filters
    description: Filter panel style
    usage: For filter and search interfaces
  states: []
variants:
- name: Base
  description: Standard panel with header, body, and footer
  classes:
  - slds-panel
  usage_context: Default implementation for panel containers
  differences: Basic panel structure with flexible content area
- name: Docked
  description: Panel docked to screen edge
  classes:
  - slds-panel
  - slds-panel_docked
  usage_context: When panel should be attached to viewport edge
  differences: Fixed positioning with edge attachment
- name: Drawer
  description: Slide-out drawer panel
  classes:
  - slds-panel
  usage_context: For slide-out navigation or content
  differences: Slide animation and overlay behavior
- name: Filter
  description: Panel optimized for filtering interfaces
  classes:
  - slds-panel
  - slds-panel_filters
  usage_context: For search and filter controls
  differences: Optimized layout for form controls and filters
lightning_component:
  name: lightning-panel
  url: https://developer.salesforce.com/docs/component-library/overview/components
  mapping_notes: Panel functionality often implemented through modal or overlay components
accessibility:
  keyboard_support:
  - Tab navigation through panel content
  - Escape to close dismissible panels
  - Arrow keys for panel navigation when applicable
  - Focus management for panel open/close
  screen_reader:
  - Panel purpose and content announced
  - Panel state changes communicated
  - Panel structure properly described
  aria_attributes:
  - role='region' for panel containers
  - aria-label for panel purpose
  - aria-expanded for collapsible panels
  - aria-hidden for closed panels
usage_guidelines:
  when_to_use:
  - For organizing related content in structured areas
  - When creating sidebar or detail views
  - For filter and configuration interfaces
  - In dashboard and workspace layouts
  when_not_to_use:
  - For simple content grouping (use cards instead)
  - When modal behavior is needed
  - For single-purpose content displays
  best_practices:
  - Provide clear panel headers with descriptive titles
  - Ensure panels are keyboard accessible
  - Use appropriate panel types for content
  - Handle responsive behavior appropriately
  - Provide clear close/dismiss mechanisms
  common_mistakes:
  - Overusing panels for simple content
  - Poor responsive panel behavior
  - Missing accessibility considerations
  - Inconsistent panel sizing and spacing
code_examples:
- title: Basic Panel
  description: Slide-out drawer panel with overlay
  code: "<!-- Backdrop -->\n      <div class=\"slds-backdrop slds-backdrop_open\" style=\"z-index: 999;\"></div>\n      <!--\
    \ Drawer Panel -->\n      <div class=\"slds-panel\" role=\"dialog\" aria-label=\"Navigation drawer\" aria-modal=\"true\"\
    >\n      <div class=\"\" style=\"position: fixed; left: 0; top: 0; width: 280px; height: 100vh; z-index: 1000; transform:\
    \ translateX(0);\">\n        <div class=\"slds-panel__header\">\n          <div class=\"slds-media slds-media_center\"\
    >\n            <div class=\"slds-media__body\">\n              <h2 class=\"slds-text-heading_small\">\n              \
    \  Navigation\n              </h2>\n            </div>\n            <div class=\"slds-media__figure slds-media__figure_reverse\"\
    >\n              <button class=\"slds-button slds-button_icon slds-panel__close\" title=\"Close navigation\">\n      \
    \          <svg class=\"slds-button__icon\" aria-hidden=\"true\">\n                  <use xlink:href=\"/assets/icons/utility-sprite/svg/symbols.svg#close\"\
    ></use>\n                </svg>\n                <span class=\"slds-assistive-text\">Close navigation</span>\n       \
    \       </button>\n            </div>\n          </div>\n        </div>\n        <div class=\"slds-panel__body\">\n  \
    \        <nav class=\"slds-nav-vertical\" aria-label=\"Sub page navigation\">\n            <div class=\"slds-nav-vertical__section\"\
    >\n              <h3 class=\"slds-nav-vertical__title\">Section 1</h3>\n              <ul>\n                <li class=\"\
    slds-nav-vertical__item slds-is-active\">\n                  <a href=\"#\" class=\"slds-nav-vertical__action\" aria-current=\"\
    page\">Item 1</a>\n                </li>\n                <li class=\"slds-nav-vertical__item\">\n                  <a\
    \ href=\"#\" class=\"slds-nav-vertical__action\">Item 2</a>\n                </li>\n                <li class=\"slds-nav-vertical__item\"\
    >\n                  <a href=\"#\" class=\"slds-nav-vertical__action\">Item 3</a>\n                </li>\n           \
    \   </ul>\n            </div>\n            <div class=\"slds-nav-vertical__section\">\n              <h3 class=\"slds-nav-vertical__title\"\
    >Section 2</h3>\n              <ul>\n                <li class=\"slds-nav-vertical__item\">\n                  <a href=\"\
    #\" class=\"slds-nav-vertical__action\">Item 4</a>\n                </li>\n                <li class=\"slds-nav-vertical__item\"\
    >\n                  <a href=\"#\" class=\"slds-nav-vertical__action\">Item 5</a>\n                </li>\n           \
    \   </ul>\n            </div>\n          </nav>\n        </div>\n      </div>\n      </div>\n"
dependencies:
  css_files:
  - panel.css
  - button.css
  - form-element.css
  javascript:
  - panel.js
  - panel-drawer.js
  icons:
  - utility-sprite.svg
  other_components:
  - button
  - form-element
  - nav-vertical
related_components:
- name: Modal
  relationship: similar
  description: Similar overlay behavior for some panel types
- name: Card
  relationship: alternative
  description: Alternative for simpler content grouping
- name: Drawer
  relationship: variant
  description: Specific drawer implementation of panels
references:
  official_docs: https://v1.lightningdesignsystem.com/components/panels/
metadata:
  version: 1.0.0
  last_updated: '2025-11-12'
  review_status: complete
  notes: ' Cleaned invalid classes and CSS variables on 2025-11-12 using slds-plus.css as source of truth.'