/* ============================================
   Layout — Sidebar + Main Content Grid
   ============================================ */

.app-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: 1fr;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  grid-row: 1 / -1;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-header {
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  border-bottom: 1px solid var(--gray-200);
}

.sidebar-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  object-fit: contain;
  flex-shrink: 0;
}

.sidebar-brand {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-lg) 0;
}

.nav-section-label {
  padding: var(--space-sm) var(--space-xl);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sidebar-text);
  opacity: 0.6;
  margin-top: var(--space-lg);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  color: var(--sidebar-text);
  font-size: var(--font-size-md);
  text-decoration: none;
  transition: all 0.15s ease;
  border-left: 3px solid transparent;
  cursor: pointer;
}

.nav-link:hover {
  color: var(--sidebar-text-hover);
  background: rgba(108, 99, 255, 0.04);
  text-decoration: none;
}

.nav-link.active {
  color: var(--sidebar-text-hover);
  background: var(--sidebar-active-bg);
  border-left-color: var(--color-accent);
}

.nav-link.disabled {
  opacity: 0.35;
  pointer-events: none;
  cursor: default;
}

.nav-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  fill: currentColor;
}

/* Settings nav group — parent link + indented children */
.nav-children {
  display: flex;
  flex-direction: column;
}

.nav-link.nav-child {
  padding-left: calc(var(--space-xl) + 32px);
  font-size: 0.92rem;
}

.nav-link.nav-child svg {
  width: 16px;
  height: 16px;
}

/* Settings pages — shared "current show" selector bar */
.settings-showbar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  max-width: 640px;
  margin-bottom: var(--space-lg);
  padding: 14px 18px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.settings-showbar-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: #374151;
  white-space: nowrap;
}

.settings-show-select {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid #d8dee6;
  border-radius: 8px;
  font-size: 0.92rem;
  background: #fff;
  cursor: pointer;
}

.sidebar-footer {
  padding: var(--space-xl);
  border-top: 1px solid var(--gray-200);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-sm);
  font-weight: 700;
  flex-shrink: 0;
}

.sidebar-user-info {
  overflow: hidden;
}

.sidebar-user-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--font-size-xs);
  color: var(--sidebar-text);
}

/* ---- Main Content ---- */
.main-content {
  grid-column: 2;
  grid-row: 1;
  overflow-y: auto;
  padding: var(--space-2xl) var(--space-3xl);
}

/* ---- Collapsible sidebar (desktop) ---- */
.sidebar-collapse-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
  padding: var(--space-md) var(--space-xl);
  background: none;
  border: none;
  border-top: 1px solid var(--gray-200);
  color: var(--sidebar-text);
  font-family: inherit;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.sidebar-collapse-toggle:hover {
  color: var(--sidebar-text-hover);
  background: rgba(108, 99, 255, 0.04);
}

.sidebar-collapse-toggle svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

@media (min-width: 769px) {
  .app-layout.sidebar-collapsed {
    grid-template-columns: 64px 1fr;
  }

  /* Hide every text label; keep the icons. */
  .app-layout.sidebar-collapsed .sidebar-header > div,
  .app-layout.sidebar-collapsed .nav-link span,
  .app-layout.sidebar-collapsed .nav-section-label,
  .app-layout.sidebar-collapsed .nav-children,
  .app-layout.sidebar-collapsed .sidebar-avatar,
  .app-layout.sidebar-collapsed .sidebar-user-info,
  .app-layout.sidebar-collapsed .sidebar-collapse-toggle span {
    display: none;
  }

  /* Keep logout reachable, centered (its inline margin-left:auto needs override). */
  .app-layout.sidebar-collapsed #logout-btn {
    margin: 0 auto !important;
  }

  /* Center the remaining icons in the narrow rail. */
  .app-layout.sidebar-collapsed .sidebar-header,
  .app-layout.sidebar-collapsed .sidebar-user,
  .app-layout.sidebar-collapsed .nav-link,
  .app-layout.sidebar-collapsed .sidebar-collapse-toggle {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
  }

  .app-layout.sidebar-collapsed .nav-link {
    gap: 0;
  }

  /* Chevron flips to point outward when collapsed. */
  .app-layout.sidebar-collapsed .sidebar-collapse-toggle svg {
    transform: rotate(180deg);
  }
}

/* ---- Mobile hamburger (hidden on desktop) ---- */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.hamburger svg {
  width: 24px;
  height: 24px;
  fill: var(--color-text);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

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

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
  }

  body.sidebar-open .sidebar-overlay {
    display: block;
  }

  .main-content {
    grid-column: 1;
    padding: var(--space-lg);
  }

  .hamburger {
    display: block;
  }

  /* Collapse is a desktop affordance; mobile uses the hamburger/off-canvas. */
  .sidebar-collapse-toggle {
    display: none;
  }
}