/* ─────────────────────────────────────────────────────────────
   shell.css — navegação do Peppe Design System v1
   Task D.1.2 · issue #62
   Depende de: tokens/tokens.css → styles/base.css → este arquivo
   ───────────────────────────────────────────────────────────── */

/* ── Grid do shell ──────────────────────────────────────────── */

.peppe-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  grid-template-rows: 1fr;
  min-height: 100vh;
}

/* ── Sidebar ────────────────────────────────────────────────── */

.peppe-shell__sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  background: var(--color-surface-shell);
  border-right: 1px solid var(--color-surface-divider);

  /* Oculta scrollbar mas mantém funcionalidade */
  scrollbar-width: thin;
  scrollbar-color: var(--color-surface-divider) transparent;
}

.peppe-shell__sidebar::-webkit-scrollbar {
  width: var(--space-4);
}

.peppe-shell__sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.peppe-shell__sidebar::-webkit-scrollbar-thumb {
  background: var(--color-surface-divider);
  border-radius: var(--radius-sm);
}

/* ── Topo da sidebar — logotipo ─────────────────────────────── */

.peppe-sidebar__brand {
  padding: var(--space-32);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.peppe-sidebar__brand-link {
  display: inline-block;
  color: var(--color-ink-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color 160ms ease;
}

.peppe-sidebar__brand-link:hover {
  color: var(--color-accent-amber-bottom);
}

.peppe-sidebar__brand-link:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-functional-info);
  outline-offset: var(--focus-ring-offset);
}

.peppe-sidebar__logo {
  display: block;
  height: 48px;
  width: auto;
  color: inherit;
}

.peppe-sidebar__version {
  display: block;
  margin-top: var(--space-8);
  font-family: var(--type-family-sans);
  font-size: var(--type-size-xs);
  font-weight: var(--type-weight-medium);
  color: var(--color-ink-tertiary);
  letter-spacing: var(--type-tracking-loose);
  text-transform: uppercase;
}

.peppe-sidebar__divider {
  height: 1px;
  background: var(--color-surface-divider);
  margin: 0;
  border: none;
  flex-shrink: 0;
}

/* ── Navegação ──────────────────────────────────────────────── */

.peppe-nav {
  flex: 1;
  padding: var(--space-24) 0 var(--space-32);
  list-style: none;
  margin: 0;
}

/* Grupo de nível 1 */
.peppe-nav__group {
  margin-bottom: var(--space-16);
}

/* Item de nível 1 */
.peppe-nav__item {
  list-style: none;
}

.peppe-nav__link {
  display: block;
  padding: var(--space-8) var(--space-16);
  font-family: var(--type-family-sans);
  font-size: var(--type-size-md);
  font-weight: var(--type-weight-medium);
  color: var(--color-ink-primary);
  text-decoration: none;
  line-height: var(--type-leading-snug);
  border-left: 2px solid transparent;
  transition: color var(--duration-micro) ease, background-color var(--duration-micro) ease;
}

.peppe-nav__link:hover {
  color: var(--color-ink-primary);
  background-color: var(--color-nav-hover);
}

.peppe-nav__link:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-functional-info);
  outline-offset: var(--focus-ring-offset);
  border-radius: var(--radius-sm);
}

/* Item ativo — nível 1 */
.peppe-nav__item--active > .peppe-nav__link,
.peppe-nav__link[aria-current="page"] {
  font-weight: var(--type-weight-medium);
  color: var(--color-ink-primary);
  border-left-color: var(--color-ink-primary);
  background-color: var(--color-nav-active);
}

/* Sub-lista de nível 2 */
.peppe-nav__sub {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Sub-grupo dentro do nível 2 (Primitives / Containers / Compositions) */
.peppe-nav__subgroup {
  margin-top: var(--space-8);
}

.peppe-nav__subgroup-label {
  display: block;
  /* Exceção óptica: 4px vertical comprime o rótulo de categoria deliberadamente,
     sinalizando que é etiqueta inerte — não item clicável. 8px igualaria o peso
     visual dos links vizinhos e quebraria a hierarquia kicker × nav-item.
     Autorizado por visual-language.md §4.1 (ajuste óptico com justificativa). */
  padding: var(--space-4) var(--space-32);
  font-family: var(--type-family-sans);
  font-size: var(--type-size-xs);
  font-weight: var(--type-weight-medium);
  color: var(--color-ink-tertiary);
  letter-spacing: var(--type-tracking-loose);
  text-transform: uppercase;
  line-height: var(--type-leading-snug);
}

/* Item de nível 2 */
.peppe-nav__subitem {
  list-style: none;
}

.peppe-nav__sublink {
  display: block;
  padding: var(--space-8) var(--space-16) var(--space-8) var(--space-32);
  font-family: var(--type-family-sans);
  font-size: var(--type-size-sm);
  font-weight: var(--type-weight-regular);
  color: var(--color-ink-secondary);
  text-decoration: none;
  line-height: var(--type-leading-snug);
  border-left: 2px solid transparent;
  transition: color var(--duration-micro) ease, background-color var(--duration-micro) ease;
}

.peppe-nav__sublink:hover {
  color: var(--color-ink-primary);
}

.peppe-nav__sublink:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-functional-info);
  outline-offset: var(--focus-ring-offset);
  border-radius: var(--radius-sm);
}

/* Item ativo — nível 2 */
.peppe-nav__subitem--active > .peppe-nav__sublink,
.peppe-nav__sublink[aria-current="page"] {
  font-weight: var(--type-weight-medium);
  color: var(--color-ink-primary);
  border-left-color: var(--color-ink-primary);
  background-color: var(--color-nav-active);
}

/* ── Área de conteúdo ───────────────────────────────────────── */

.peppe-shell__content {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.peppe-content-wrap {
  flex: 1;
  width: 100%;
  max-width: var(--container-max);
  padding: var(--space-32) var(--space-48) var(--space-96);
}

/* ── Breadcrumb ─────────────────────────────────────────────── */

.peppe-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-bottom: var(--space-24);
  padding: 0;
  list-style: none;
}

.peppe-breadcrumb__item {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-family: var(--type-family-sans);
  font-size: var(--type-size-xs);
  font-weight: var(--type-weight-medium);
  color: var(--color-ink-tertiary);
  letter-spacing: var(--type-tracking-loose);
  text-transform: uppercase;
  line-height: var(--type-leading-tight);
}

.peppe-breadcrumb__item a {
  color: var(--color-ink-tertiary);
  text-decoration: none;
}

.peppe-breadcrumb__item a:hover {
  color: var(--color-ink-secondary);
}

.peppe-breadcrumb__separator {
  color: var(--color-ink-tertiary);
  font-style: normal;
  user-select: none;
}

/* Leaf do breadcrumb — item atual (sem link filho).
   Sobe de ink-tertiary para ink-secondary: distingue o destino ativo
   dos ancestrais sem precisar de negrito ou cor funcional.
   Seletor moderno: :not(:has(a)) captura o item que não contém <a>.
   Fallback de classe .peppe-breadcrumb__item--current para browsers
   sem suporte a :has() — sem regressão funcional, só perde o afinamento. */
.peppe-breadcrumb__item:not(:has(a)),
.peppe-breadcrumb__item--current {
  color: var(--color-ink-secondary);
}

/* ── Cabeçalho mobile (hamburger) ───────────────────────────── */

.peppe-shell__topbar {
  display: none;
  align-items: center;
  gap: var(--space-16);
  padding: var(--space-16) var(--space-24);
  background: var(--color-surface-shell); /* chrome estrutural — shell branco; divider ECECEC mantido sobre branco para contraste reforçado */
  border-bottom: 1px solid var(--color-surface-divider);
  position: sticky;
  top: 0;
  z-index: var(--z-topbar);
}

.peppe-topbar__brand-link {
  display: inline-block;
  color: var(--color-ink-primary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color 160ms ease;
}

.peppe-topbar__brand-link:hover {
  color: var(--color-accent-amber-bottom);
}

.peppe-topbar__brand-link:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-functional-info);
  outline-offset: var(--focus-ring-offset);
}

.peppe-topbar__logo {
  display: block;
  height: 32px;
  width: auto;
  color: inherit;
}

.peppe-topbar__hamburger {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target-md);
  height: var(--touch-target-md);
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-ink-primary);
  flex-shrink: 0;
}

.peppe-topbar__hamburger:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-functional-info);
  outline-offset: var(--focus-ring-offset);
}

/* Ícone hamburger — glifo geométrico puro, stroke único 1.5px */
.peppe-hamburger-icon {
  display: block;
  width: var(--icon-size-md);
  height: var(--icon-size-md);
}

/* Overlay do drawer */
.peppe-shell__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: var(--z-overlay);
}

/* ── Responsividade: < 1024px — sidebar colapsa ─────────────── */

@media (max-width: 1024px) {
  .peppe-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr;
  }

  /* Topbar mobile visível */
  .peppe-shell__topbar {
    display: flex;
  }

  /* Sidebar vira off-canvas */
  .peppe-shell__sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    z-index: var(--z-drawer);
    transform: translateX(-100%);
    /* ease-in na saída (fechar): começa devagar, acelera no fim — sai rápido */
    transition: transform var(--duration-panel) ease-in;
    box-shadow: var(--shadow-floating);
  }

  /* Overlay visível quando drawer aberto */
  .peppe-shell__overlay {
    display: block;
    opacity: 0;
    pointer-events: none;
    /* ease-in na saída (fechar) */
    transition: opacity var(--duration-panel) ease-in;
  }

  /* Estado aberto via data attribute no body */
  [data-state="drawer-open"] .peppe-shell__sidebar {
    transform: translateX(0);
    /* ease-out na entrada (abrir): começa rápido, desacelera no fim — pouso suave */
    transition: transform var(--duration-panel) ease-out;
  }

  [data-state="drawer-open"] .peppe-shell__overlay {
    opacity: 1;
    pointer-events: auto;
    /* ease-out na entrada (abrir) */
    transition: opacity var(--duration-panel) ease-out;
  }

  .peppe-content-wrap {
    padding: var(--space-24) var(--space-32) var(--space-64);
  }
}

/* ── Responsividade: < 768px — escala reduzida ──────────────── */

@media (max-width: 768px) {
  .peppe-content-wrap {
    padding: var(--space-24) var(--space-24) var(--space-64);
  }

  /* Tipografia do shell segue escala reduzida — degrau de um tamanho mantido.
     N1: size-md (desktop) → size-sm (mobile).
     N2: size-sm (desktop) → size-xs (mobile).
     N2 ativo mantém medium em mobile — sinal de peso não é sacrificado na escala. */
  .peppe-nav__link {
    font-size: var(--type-size-sm);
  }

  .peppe-nav__sublink {
    font-size: var(--type-size-xs);
    /* Mantém padding-top/bottom space-8 herdado do padrão desktop. */
  }
}