/* ── Login layout ─────────────────────────────────────── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--color-bg-white);
}

/* ── App shell ────────────────────────────────────────── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ──────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background-color: var(--color-bg-sidebar);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  overflow-x: hidden;
  transition: width var(--transition-normal);
  z-index: 100;
}

.sidebar.is-collapsed {
  width: var(--sidebar-width-collapsed);
}

.sidebar__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  min-height: 64px;
}

.sidebar__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.sidebar__toggle:hover {
  color: var(--color-text-primary);
  background-color: var(--color-bg-page);
}

.sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  overflow: hidden;
  white-space: nowrap;
}

.sidebar__logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  flex-shrink: 0;
}

.sidebar__logo-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.5px;
  color: var(--color-text-primary);
  transition: opacity var(--transition-normal);
}

.sidebar__logo-text .logo-blue   { color: var(--color-brand-blue); }
.sidebar__logo-text .logo-orange { color: var(--color-brand-orange); }

.sidebar.is-collapsed .sidebar__logo-text,
.sidebar.is-collapsed .sidebar__section-label,
.sidebar.is-collapsed .nav-item__label {
  opacity: 0;
  pointer-events: none;
}

/* ── Sidebar nav ──────────────────────────────────────── */
.sidebar__nav {
  padding: var(--space-4) 0;
  flex: 1;
}

.sidebar__section {
  margin-bottom: var(--space-2);
}

.sidebar__section-label {
  padding: var(--space-3) var(--space-4) var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--transition-normal);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: 0;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.nav-item:hover {
  background-color: var(--color-bg-page);
  color: var(--color-text-primary);
}

.nav-item.is-active {
  color: var(--color-brand-orange);
}

.nav-item.is-active .nav-item__icon {
  color: var(--color-brand-orange);
}

.nav-item__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-item.is-active .nav-item__icon { color: var(--color-brand-orange); }
.nav-item:hover    .nav-item__icon  { color: var(--color-text-primary); }

.nav-item__label {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  transition: opacity var(--transition-normal);
}

/* ── Main content ─────────────────────────────────────── */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  background-color: var(--color-bg-white);
  transition: margin-left var(--transition-normal);
}

.app-shell.sidebar-collapsed .main-content {
  margin-left: var(--sidebar-width-collapsed);
}

.page-section {
  padding: var(--space-8) var(--space-8);
  min-height: 100vh;
}