/*
 * ==========================================================================
 * layout.css — Aderian Zelly Layout System
 * ==========================================================================
 *
 * This file defines the application shell layout: the CSS Grid page
 * container, sidebar, top bar, and main content area. It also contains
 * responsive rules for the 768px mobile/desktop breakpoint.
 *
 * Loaded AFTER design-tokens.css so that all var() references resolve.
 *
 * Naming convention:  .az-{component}[--modifier|__element]
 *   az  = Aderian Zelly prefix
 *
 * Layout structure:
 *   .az-page              – CSS Grid root (sidebar column + main column)
 *     .az-sidebar          – Left navigation panel
 *     .az-page-main        – Wrapper for topbar + scrollable content
 *       .az-topbar          – Sticky header bar
 *       .az-main            – Scrollable page content
 *
 * Responsive behavior:
 *   ≥768px  – sidebar visible, topbar spans main column
 *   <768px  – sidebar hidden (overlay on toggle), main full-width
 * ========================================================================== */

/* ---------- Global Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
}

body {
  font-family: var(--az-font-family, 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif);
  font-size: var(--az-font-size-body, 1rem);
  color: var(--az-text-primary, #1f2937);
  background-color: var(--az-color-bg-dark, #020630);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: var(--az-letter-spacing-body, -0.02em);
}

#app {
  height: 100%;
}

/* ---------- Page Grid ---------- */
.az-page {
  display: grid;
  grid-template-columns: auto 1fr;
  min-height: 100vh;
  width: 100%;
}

/* ---------- Page Main Wrapper ---------- */
.az-page-main {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow: hidden;
}

/* ---------- Sidebar ---------- */
.az-sidebar {
  background-color: var(--az-color-navy, #030C60);
  width: 250px;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  transition: width var(--az-duration, 200ms) var(--az-ease, cubic-bezier(0.4, 0, 0.2, 1));
  z-index: 20;
}

/* Sidebar collapsed – icon-only mode */
.az-sidebar--collapsed {
  width: 60px;
}

.az-sidebar--collapsed .az-sidebar__logo {
  padding: var(--az-space-sm, 8px);
  justify-content: center;
}

/* ---------- Sidebar Logo ---------- */
.az-sidebar__logo {
  display: flex;
  align-items: center;
  padding: var(--az-space-md, 16px);
  flex-shrink: 0;
}

.az-sidebar__logo img {
  max-height: 32px;
  width: auto;
}

/* ---------- Sidebar Toggle (hamburger) ---------- */
.az-sidebar-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--az-color-white, #FFFFFF);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--az-space-sm, 8px);
  line-height: 1;
  transition: opacity var(--az-duration, 200ms) var(--az-ease, cubic-bezier(0.4, 0, 0.2, 1));
}

.az-sidebar-toggle:hover {
  opacity: 0.8;
}

.az-sidebar-toggle:focus-visible {
  outline: 2px solid var(--az-color-primary, #081FF0);
  outline-offset: 2px;
}

/* ---------- Top Bar ---------- */
.az-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--az-color-navy, #030C60);
  color: var(--az-color-white, #FFFFFF);
  padding: var(--az-space-sm, 8px) var(--az-space-lg, 24px);
  min-height: 56px;
  flex-shrink: 0;
}

/* Top bar left section: hamburger + logo + service name */
.az-topbar__left {
  display: flex;
  align-items: center;
  gap: var(--az-space-sm, 8px);
}

/* Top bar right section: login display */
.az-topbar__right {
  display: flex;
  align-items: center;
  gap: var(--az-space-md, 16px);
}

/* Top bar user section */
.az-topbar__user {
  display: flex;
  align-items: center;
  gap: var(--az-space-sm, 8px);
}

.az-topbar__logout {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  font-size: 14px;
  padding: 4px 8px;
  transition: color var(--az-duration, 200ms) var(--az-ease, ease);
}

.az-topbar__logout:hover {
  color: var(--az-color-white, #fff);
}

.az-topbar__username {
  color: var(--az-color-white, #fff);
  font-size: 14px;
  font-weight: 500;
}

/* Logo image in topbar */
.az-topbar__logo {
  height: 28px;
  width: auto;
}

/* Service name text */
.az-topbar__service-name {
  font-family: var(--az-font-family);
  font-size: var(--az-font-size-body, 1rem);
  font-weight: 500;
  color: var(--az-color-white, #FFFFFF);
  white-space: nowrap;
}

/* ---------- Main Content Area ---------- */
.az-main {
  flex: 1;
  overflow-y: auto;
  background-color: var(--az-surface-main, #FFFFFF);
  padding: var(--az-space-lg, 24px);
}

/* ---------- Visibility Helpers ---------- */

/* Hidden on desktop (≥768px), visible on mobile */
.az-hidden-desktop {
  display: none;
}

/* Hidden on mobile (<768px), visible on desktop */
.az-hidden-mobile {
  display: initial;
}

/* ---------- Navigation Items ---------- */
.az-nav {
  display: flex;
  flex-direction: column;
  padding: var(--az-space-sm, 8px) 0;
  flex: 1;
}

.az-nav-item {
  padding: 2px var(--az-space-sm, 8px);
}

.az-nav-item--child {
  padding-left: var(--az-space-lg, 24px);
}

.az-nav-link {
  display: flex;
  align-items: center;
  gap: var(--az-space-sm, 8px);
  padding: var(--az-space-sm, 8px) var(--az-space-md, 16px);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  border-radius: var(--az-radius-input, 4px);
  font-size: 0.9rem;
  line-height: 1.5;
  transition: background-color var(--az-duration, 200ms) var(--az-ease, cubic-bezier(0.4, 0, 0.2, 1)),
              color var(--az-duration, 200ms) var(--az-ease, cubic-bezier(0.4, 0, 0.2, 1));
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.az-nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--az-color-white, #FFFFFF);
}

.az-nav-link--active,
.az-nav-link.az-nav-link--active {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--az-color-white, #FFFFFF);
  border-left: 3px solid var(--az-color-primary, #081FF0);
}

/* ---------- Nav Groups ---------- */
.az-nav-group {
  padding: 2px var(--az-space-sm, 8px);
}

.az-nav-group__header {
  display: flex;
  align-items: center;
  gap: var(--az-space-sm, 8px);
  padding: var(--az-space-sm, 8px) var(--az-space-md, 16px);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  line-height: 1.5;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  border-radius: var(--az-radius-input, 4px);
  transition: background-color var(--az-duration, 200ms) var(--az-ease, cubic-bezier(0.4, 0, 0.2, 1));
}

.az-nav-group__header:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--az-color-white, #FFFFFF);
}

.az-nav-group__chevron {
  margin-left: auto;
  font-size: 0.75rem;
  transition: transform var(--az-duration, 200ms) var(--az-ease, cubic-bezier(0.4, 0, 0.2, 1));
}

.az-nav-group__chevron--open {
  transform: rotate(90deg);
}

.az-nav-group__children {
  overflow: hidden;
}

/* ---------- Sidebar Collapse Toggle ---------- */
.az-sidebar__collapse-toggle {
  padding: var(--az-space-sm, 8px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

/* ==========================================================================
 * Responsive Rules — Mobile (<768px)
 * ========================================================================== */
@media (max-width: 767.98px) {
  /* Switch to single-column layout */
  .az-page {
    grid-template-columns: 1fr;
  }

  /* Hide sidebar by default on mobile */
  .az-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform var(--az-duration, 200ms) var(--az-ease, cubic-bezier(0.4, 0, 0.2, 1));
    z-index: 30;
  }

  /* Sidebar slides in when mobile-open class is applied */
  .az-sidebar--mobile-open {
    transform: translateX(0);
  }

  /* Collapsed state irrelevant on mobile — always full width when open */
  .az-sidebar--collapsed {
    width: 250px;
  }

  /* Show hamburger on mobile */
  .az-hidden-desktop {
    display: inline-flex;
  }

  /* Hide desktop-only elements on mobile */
  .az-hidden-mobile {
    display: none;
  }

  /* Main content full width */
  .az-page-main {
    min-height: 100vh;
  }

  /* Reduce main content padding on mobile */
  .az-main {
    padding: var(--az-space-md, 16px);
  }
}