/* ==========================================================================
   layout.css — Estrutura de tela
   Header (lockup duplo) · Sidebar · Breadcrumb · Tabs · Grid principal
   Depende de: tokens.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. SHELL — grid app: header + (sidebar | main)
   -------------------------------------------------------------------------- */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-collapsed) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  grid-template-areas:
    "header header"
    "sidebar main";
  min-height: 100vh;
  background-color: var(--color-bg-app);
  transition: grid-template-columns var(--transition-base);
}

.app-shell--sidebar-expanded {
  grid-template-columns: var(--sidebar-expanded) 1fr;
}

/* --------------------------------------------------------------------------
   2. HEADER
   -------------------------------------------------------------------------- */
.app-header {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-6);
  background-color: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: var(--z-header);
}

.app-header__menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-mute);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.app-header__menu-toggle:hover {
  background-color: var(--color-terra-soft);
  color: var(--color-terra);
}

.app-header__brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.app-header__breadcrumb-area {
  flex: 1;
  display: flex;
  align-items: center;
  padding-left: var(--space-6);
  border-left: 1px solid var(--color-border);
  margin-left: var(--space-2);
}

.app-header__utilities {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-header__util-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-mute);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.app-header__util-btn:hover {
  background-color: var(--color-terra-soft);
  color: var(--color-terra);
}
.app-header__util-btn .badge-dot {
  position: absolute;
  top: 8px; right: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background-color: var(--color-terra);
  border: 2px solid var(--color-bg-card);
}

/* --------------------------------------------------------------------------
   2.1 LOCKUP DUPLO de logos (CEUNSP | Itu)
   -------------------------------------------------------------------------- */
.lockup {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.lockup-logo {
  height: 40px;
  width: auto;
  display: block;
}
.lockup-logo--primary { /* CEUNSP */ }
.lockup-logo--secondary { /* Itu */ }

.lockup-divider {
  width: 1px;
  height: 32px;
  background-color: var(--color-terra-claro);
  opacity: 0.4;
}

.lockup-program {
  font-family: var(--font-display);
  font-weight: var(--weight-medium);
  font-size: var(--text-sm);
  color: var(--color-text-mute);
  letter-spacing: var(--tracking-tight);
  font-variant: small-caps;
  margin-top: 2px;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   3. SIDEBAR
   -------------------------------------------------------------------------- */
.sidebar {
  grid-area: sidebar;
  background-color: var(--color-bg-card);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
}

.sidebar__nav {
  flex: 1;
  padding: var(--space-3) 0;
  overflow-y: auto;
}

.sidebar__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar__item {
  position: relative;
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-mute);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  border-left: 4px solid transparent;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
}
.sidebar__link:hover {
  background-color: var(--color-terra-soft);
  color: var(--color-terra);
}
.sidebar__link--active {
  background-color: var(--color-terra-soft);
  color: var(--color-terra);
  border-left-color: var(--color-terra);
}

.sidebar__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  stroke-width: 1.5;
}

.sidebar__label {
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}
.app-shell--sidebar-expanded .sidebar__label {
  opacity: 1;
  transform: translateX(0);
}

.sidebar__footer {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  text-align: center;
}

/* --------------------------------------------------------------------------
   4. MAIN
   -------------------------------------------------------------------------- */
.app-main {
  grid-area: main;
  padding: var(--space-6) var(--space-8);
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.page-header__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-medium);
  color: var(--color-navy);
  margin: 0 0 var(--space-1) 0;
}

.page-header__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-mute);
  margin: 0;
}

.page-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   5. BREADCRUMB
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-weight: var(--weight-semibold);
}

.breadcrumb__home-icon {
  width: 16px;
  height: 16px;
  color: var(--color-terra);
  margin-right: var(--space-1);
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.breadcrumb__link {
  color: var(--color-terra);
  transition: color var(--transition-fast);
}
.breadcrumb__link:hover {
  color: var(--color-terra-claro);
  text-decoration: underline;
}

.breadcrumb__separator {
  color: var(--color-text-faint);
  font-weight: var(--weight-regular);
}

.breadcrumb__current {
  color: var(--color-navy);
}

/* --------------------------------------------------------------------------
   6. TABS
   -------------------------------------------------------------------------- */
.tabs {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
  overflow-x: auto;
  scrollbar-width: thin;
}

.tabs__item {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-mute);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}
.tabs__item:hover {
  color: var(--color-terra-claro);
}
.tabs__item--active {
  color: var(--color-terra);
  border-bottom-color: var(--color-terra);
}

.tabs__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 var(--space-2);
  background-color: var(--color-bg-row-alt);
  color: var(--color-text-mute);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0;
}
.tabs__item--active .tabs__count {
  background-color: var(--color-terra-soft);
  color: var(--color-terra);
}

/* --------------------------------------------------------------------------
   7. GRID UTILITÁRIO (para conteúdo principal)
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-4);
}

.grid--cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid--cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid--cols-4 { grid-template-columns: repeat(4, 1fr); }

.grid--sidebar-content { /* layout 2 colunas: filtros + tabela */
  grid-template-columns: 280px 1fr;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stack--sm { gap: var(--space-2); }
.stack--lg { gap: var(--space-6); }

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.cluster--between { justify-content: space-between; }

/* --------------------------------------------------------------------------
   8. RESPONSIVO
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .grid--cols-4 { grid-template-columns: repeat(2, 1fr); }
  .grid--sidebar-content { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .app-main { padding: var(--space-4); }
  .grid--cols-2, .grid--cols-3 { grid-template-columns: 1fr; }
  .lockup-program { display: none; }
  .lockup-logo { height: 32px; }
  .page-header { flex-direction: column; align-items: stretch; }
}

@media (max-width: 640px) {
  .app-header__breadcrumb-area { display: none; }
  .app-shell { grid-template-columns: 0 1fr; }
  .app-shell--sidebar-expanded {
    grid-template-columns: var(--sidebar-expanded) 1fr;
  }
  .sidebar { box-shadow: var(--shadow-elev); }
}