/* App shell — sidebar + main area */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  margin-left: 240px;
  transition: margin-left var(--transition-normal);
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  width: 240px;
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 1000;
  transition: width var(--transition-normal);
  overflow-y: auto;
  overflow-x: hidden;
}

/* Collapsed state */
.sidebar--collapsed { width: 64px; }
.sidebar--collapsed ~ .app-main { margin-left: 64px; }

/* ── Logo ────────────────────────────────────────────────── */
.sidebar__logo {
  padding: 8px var(--spacing-md);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  flex-shrink: 0;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar__logo-link {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.sidebar__logo-img {
  height: 40px;
}

.sidebar__logo-icon {
  height: 36px;
  margin: 0 auto;
}

/* ── Navigation ──────────────────────────────────────────── */
.sidebar__nav {
  flex: 1;
  padding: var(--spacing-sm) 0;
  overflow-y: auto;
}

/* ── Module items (pill style) ───────────────────────────── */
.sidebar__module-link,
.sidebar__settings-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px var(--spacing-md);
  margin: 2px var(--spacing-sm);
  color: inherit;
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.sidebar__module-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar__module-icon svg {
  width: 18px;
  height: 18px;
}

.sidebar__module-label {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__module-link:hover,
.sidebar__settings-link:hover {
  color: var(--color-text-inverse);
  background: rgba(255,255,255,0.05);
}

/* Active module — pill highlight */
.sidebar__module--active > .sidebar__module-link {
  color: var(--color-text-inverse);
  background: rgba(255,255,255,0.12);
}

.sidebar__settings-link--active {
  color: var(--color-text-inverse);
  background: rgba(255,255,255,0.12);
}

/* Disabled modules */
.sidebar__module--disabled {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px var(--spacing-md);
  margin: 2px var(--spacing-sm);
  opacity: 0.4;
  cursor: not-allowed;
  border-radius: var(--radius-md);
}

.sidebar__module-locked {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.4);
  margin-left: auto;
}

.sidebar__module-chevron {
  margin-left: auto;
  opacity: 0.65;
  display: inline-flex;
  align-items: center;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.sidebar__module--active > .sidebar__module-link .sidebar__module-chevron {
  opacity: 1;
  transform: rotate(180deg);
}

/* ── Sub-nav (accordion) ─────────────────────────────────── */
.sidebar__subnav {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.sidebar__module--active .sidebar__subnav {
  max-height: 300px;
}

.sidebar__subnav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 6px var(--spacing-md) 6px 36px;
  margin: 1px var(--spacing-sm);
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.sidebar__subnav-link:hover {
  color: var(--color-text-inverse);
  background: rgba(255,255,255,0.04);
}

.sidebar__subnav-link--active {
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-semibold);
  background: rgba(255,255,255,0.08);
}

.sidebar__subnav-arrow {
  margin-left: auto;
  opacity: 0.7;
  flex-shrink: 0;
}

.sidebar__subnav-indicator {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  opacity: 0.9;
}

/* ── Bottom actions ──────────────────────────────────────── */
.sidebar__bottom {
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: var(--spacing-sm) 0;
  flex-shrink: 0;
}

.sidebar__toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px var(--spacing-md);
  margin: 2px var(--spacing-sm);
  color: rgba(255,255,255,0.7);
  background: none;
  border: none;
  cursor: pointer;
  width: calc(100% - var(--spacing-md));
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.sidebar__toggle:hover {
  color: var(--color-text-inverse);
  background: rgba(255,255,255,0.05);
}

.sidebar__action {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 10px var(--spacing-md);
  margin: 2px var(--spacing-sm);
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.sidebar__action:hover {
  color: var(--color-text-inverse);
  background: rgba(255,255,255,0.05);
}

.sidebar__action--active {
  color: var(--color-secondary);
}

.sidebar__user-photo {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

/* ── Collapsed state overrides ───────────────────────────── */
.sidebar--collapsed .sidebar__logo-link {
  justify-content: center;
}

.sidebar--collapsed .sidebar__module-link,
.sidebar--collapsed .sidebar__settings-link {
  justify-content: center;
  padding: 12px 0;
  margin: 2px 4px;
}

.sidebar--collapsed .sidebar__module--disabled {
  justify-content: center;
  padding: 12px 0;
  margin: 2px 4px;
}

.sidebar--collapsed .sidebar__subnav {
  display: none;
}

.sidebar--collapsed .sidebar__toggle {
  justify-content: center;
  padding: 10px 0;
  margin: 2px 4px;
  width: calc(100% - 8px);
}

.sidebar--collapsed .sidebar__action {
  justify-content: center;
  padding: 10px 0;
  margin: 2px 4px;
}

.sidebar--collapsed .sidebar__module-locked {
  display: none;
}

.sidebar--collapsed .sidebar__module-chevron {
  display: none;
}

/* ── Top Bar ─────────────────────────────────────────────── */
.top-bar {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-md);
  height: 64px;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-bar__left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-width: 0;
}

.top-bar__right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Co-brand slot */
.top-bar__cobrand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  overflow: hidden;
  height: 100%;
}

.top-bar__cobrand-x {
  color: var(--color-secondary);
  font-size: 26px;
  font-weight: var(--font-weight-medium);
  line-height: 1;
  flex-shrink: 0;
}

.top-bar__cobrand-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.top-bar__cobrand-link:hover {
  opacity: 0.85;
}

.top-bar__cobrand-logo {
  height: 40px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

/* Skip filter for logos already prepared for dark backgrounds */
.top-bar__cobrand-logo--prewhite {
  filter: none;
}

.top-bar__cobrand-name {
  color: var(--color-text-inverse);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
}

/* Top bar — Portfolio / Company selectors */
.top-bar__selector {
  position: relative;
}

.top-bar__selector-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs) var(--spacing-sm);
  color: var(--color-text-inverse);
  font-size: var(--font-size-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.top-bar__selector-btn:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.3);
}

.top-bar__selector-label {
  color: rgba(255,255,255,0.6);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.top-bar__selector-value {
  font-weight: var(--font-weight-semibold);
}

.top-bar__dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  min-width: 200px;
  max-height: 300px;
  overflow-y: auto;
  z-index: 100;
}

.top-bar__dropdown.show {
  display: block;
}

.top-bar__dropdown button {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  transition: background var(--transition-fast);
}

.top-bar__dropdown button:hover {
  background: var(--color-bg-secondary);
}

.top-bar__dropdown-item--active {
  background: var(--color-bg-selected);
  font-weight: var(--font-weight-semibold);
}

.top-bar__company-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-sm);
}

/* Top bar — User actions */
.top-bar__action {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.top-bar__action:hover {
  color: var(--color-text-inverse);
  background: rgba(255,255,255,0.1);
}

.top-bar__action--active {
  color: var(--color-text-inverse);
}

.top-bar__user-photo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
}

.top-bar__user-name {
  font-weight: var(--font-weight-medium);
}

/* ── Breadcrumb Strip ───────────────────────────────────── */
.breadcrumb-strip {
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border-default);
  padding: var(--spacing-xs) var(--spacing-lg);
  position: sticky;
  top: 64px;
  z-index: 40;
  font-size: var(--font-size-sm);
  min-height: 32px;
  display: flex;
  align-items: center;
}

.breadcrumb-strip__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.breadcrumb-strip__link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-strip__link:hover {
  color: var(--color-text-primary);
  text-decoration: underline;
}

.breadcrumb-strip__sep {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-base);
}

.breadcrumb-strip__current {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

.breadcrumb-strip__title {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

/* ── Mobile hamburger button ────────────────────────────── */
.sidebar__mobile-toggle {
  display: none;
}

.sidebar__mobile-backdrop {
  display: none;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    position: fixed;
    z-index: 1100;
    width: 240px;
    transition: transform 0.25s ease;
  }

  .sidebar--collapsed {
    width: 240px;
  }

  .sidebar.sidebar--mobile-open {
    transform: translateX(0);
  }

  .app-main {
    margin-left: 0;
  }

  .sidebar__toggle {
    display: none;
  }

  .sidebar__mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    z-index: 1050;
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: opacity var(--transition-fast);
  }

  .sidebar--mobile-open ~ .sidebar__mobile-toggle {
    opacity: 0;
    pointer-events: none;
  }

  .sidebar__mobile-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1090;
  }

  .sidebar__mobile-backdrop.show {
    display: block;
  }

  /* Top bar: hide selector labels on mobile, compact padding */
  .top-bar__selector-label {
    display: none;
  }

  .top-bar__selector-btn {
    padding: 4px var(--spacing-xs);
    font-size: var(--font-size-xs);
  }

  .top-bar__user-name {
    display: none;
  }

  .top-bar__dropdown {
    right: auto;
    left: 0;
    min-width: 180px;
  }

  /* Breadcrumb strip: truncate on mobile */
  .breadcrumb-strip {
    padding: var(--spacing-xs) var(--spacing-md);
  }

  .breadcrumb-strip__nav {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
}