/* =============================================================================
   ARQUIVO: assets/css/components.css
   FUNÇÃO:  peças que se repetem em várias páginas: botões, header, menu mobile,
            breadcrumb, cards de artigo, rodapé, botão flutuante de WhatsApp,
            banner de cookies e página 404.

   ORDEM: layout dos componentes > componentes > responsivo
   As variáveis (cores, espaços) ficam em base.css.
   ============================================================================= */


/* ===== 1. LINK "PULAR PARA O CONTEÚDO" ===== */
/* Fica fora da tela e aparece ao receber foco pelo teclado */
.skip-link {
  position: absolute;
  top: calc(-1 * var(--space-10));
  left: var(--space-2);
  z-index: var(--z-skip);
  padding: var(--space-1) var(--space-2);
  font-weight: 600;
  color: var(--color-on-dark);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: top var(--transition);
}

.skip-link:focus {
  top: var(--space-1);
  color: var(--color-on-dark);
}


/* ===== 2. BOTÕES ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: 48px;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition),
    border-color var(--transition), transform var(--transition);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  color: var(--color-on-dark);
  background: var(--color-primary);
}

.btn--primary:hover {
  color: var(--color-on-dark);
  background: var(--color-primary-dark);
}

.btn--secondary {
  color: var(--color-primary);
  background: transparent;
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  color: var(--color-primary-dark);
  background: var(--color-accent-soft);
}

.btn--whatsapp {
  color: var(--color-on-dark);
  background: var(--color-whatsapp);
}

.btn--whatsapp:hover {
  color: var(--color-on-dark);
  background: var(--color-whatsapp-dark);
}

/* Variações para usar sobre fundo escuro */
.btn--light {
  color: var(--color-primary);
  background: var(--color-surface);
}

.btn--light:hover {
  color: var(--color-primary-dark);
  background: var(--color-accent-soft);
}

.btn--outline-light {
  color: var(--color-on-dark);
  background: transparent;
  border-color: var(--color-on-dark);
}

.btn--outline-light:hover {
  color: var(--color-primary-dark);
  background: var(--color-surface);
}

/* Agrupa botões lado a lado, quebrando linha quando faltar espaço */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Ícones SVG inline: herdam a cor do texto */
.icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}


/* ===== 3. HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

/* Sombra aplicada pelo main.js depois que a página rola */
.site-header--scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: var(--header-height);
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
}

/* Navegação e CTA de desktop ficam escondidos no celular */
.site-nav,
.site-header__cta {
  display: none;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-target);
  padding-inline: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-secondary);
}

.site-header__cta {
  flex-shrink: 0;
  min-height: var(--touch-target);
  padding-inline: var(--space-2);
  font-size: var(--text-sm);
}


/* ===== 4. BOTÃO HAMBÚRGUER ===== */
.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: var(--touch-target);
  height: var(--touch-target);
  border-radius: var(--radius-sm);
}

.menu-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Desenha o "X" quando o menu está aberto */
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ===== 5. MENU MOBILE ===== */
.mobile-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: calc(100dvh - var(--header-height));
  padding: var(--space-2) var(--space-3) var(--space-3);
  overflow-y: auto;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  min-height: 48px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
}

.mobile-nav__link:hover,
.mobile-nav__link[aria-current="page"] {
  color: var(--color-primary);
}

.mobile-nav__cta {
  width: 100%;
  margin-top: var(--space-2);
}


/* ===== 6. BREADCRUMB ===== */
.breadcrumb {
  padding-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
}

/* Separador desenhado por CSS, para não ser lido como texto */
.breadcrumb__item + .breadcrumb__item::before {
  content: "›";
  margin-inline: var(--space-1);
}

.breadcrumb__link {
  display: inline-flex;
  align-items: center;
  min-width: var(--touch-target);
  min-height: var(--touch-target);
}


/* ===== 7. CARDS DE ARTIGO (home e listagem do blog) ===== */
.post-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.post-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition), transform var(--transition);
}

.post-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.post-card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.post-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
}

.post-card__category {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-secondary-text);
}

.post-card__title {
  font-size: var(--text-lg);
}

.post-card__link {
  color: var(--color-primary);
  text-decoration: none;
}

/* Faz o card inteiro ser clicável, mantendo um único link no HTML */
.post-card__link::after {
  content: "";
  position: absolute;
  inset: 0;
}

.post-card__link:focus-visible {
  outline: none;
}

.post-card:has(.post-card__link:focus-visible) {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.post-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

.post-card__meta {
  margin-top: auto;
  padding-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-muted);
}


/* ===== 8. LISTA DE REDES SOCIAIS ===== */
.social-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.social-list__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  border: 1px solid currentColor;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
}


/* ===== 9. RODAPÉ ===== */
.site-footer {
  /* Espaço extra embaixo para o botão flutuante não cobrir o último texto */
  padding-block: var(--space-8) var(--space-12);
  font-size: var(--text-sm);
  color: var(--color-on-dark-muted);
  background: var(--color-footer);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

.site-footer__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-on-dark);
}

.site-footer__credentials {
  margin-bottom: var(--space-2);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-on-dark);
}

.site-footer__title {
  margin-bottom: var(--space-1);
  font-weight: 600;
  color: var(--color-on-dark);
}

.site-footer__text + .site-footer__text {
  margin-top: var(--space-1);
}

.site-footer__link,
.site-footer__link-button {
  display: inline-flex;
  align-items: center;
  min-width: var(--touch-target);
  min-height: var(--touch-target);
  font-size: var(--text-sm);
  color: var(--color-on-dark);
  text-align: left;
  text-decoration: underline;
}

.site-footer__link:hover,
.site-footer__link-button:hover {
  color: var(--color-accent);
}

.site-footer .social-list__link {
  color: var(--color-on-dark);
}

.site-footer .social-list__link:hover {
  color: var(--color-footer);
  background: var(--color-on-dark);
}

.site-footer__bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-primary);
}

.site-footer__notice {
  font-weight: 600;
  color: var(--color-on-dark);
}


/* ===== 10. BOTÃO FLUTUANTE DE WHATSAPP ===== */
.whatsapp-float {
  position: fixed;
  right: var(--space-2);
  /* Sobe junto com o banner de cookies no celular, para nunca ficar por baixo */
  bottom: calc(var(--space-2) + var(--cookie-banner-offset));
  z-index: var(--z-float);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  color: var(--color-on-dark);
  background: var(--color-whatsapp);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-lg);
  /* A posição (bottom) não é animada: isso contaria como salto de layout */
  transition: background-color var(--transition), transform var(--transition);
}

.whatsapp-float:hover {
  color: var(--color-on-dark);
  background: var(--color-whatsapp-dark);
  transform: translateY(-2px);
}

.whatsapp-float .icon {
  width: 28px;
  height: 28px;
}


/* ===== 11. BANNER DE COOKIES (criado pelo consent.js) ===== */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-banner);
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  font-size: var(--text-sm);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.cookie-banner__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-1);
}

/* Aceitar e Recusar têm o mesmo tamanho: a escolha precisa ser livre (LGPD) */
.cookie-banner__button {
  min-height: var(--touch-target);
  padding-inline: var(--space-2);
  font-size: var(--text-sm);
}


/* ===== 12. PÁGINA 404 ===== */
.error-page {
  display: grid;
  justify-items: start;
  gap: var(--space-3);
  max-width: 62ch;
  padding-block: var(--space-10);
}

.error-page__text {
  color: var(--color-muted);
}


/* ===== 13. RESPONSIVO ===== */

/* Tablet */
@media (min-width: 768px) {
  .post-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* O banner vira um cartão à esquerda e deixa o botão flutuante livre */
  .cookie-banner {
    left: var(--space-3);
    right: auto;
    bottom: var(--space-3);
    max-width: 440px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
  }

  .whatsapp-float {
    right: var(--space-3);
    bottom: var(--space-3);
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .site-nav {
    display: block;
  }

  .site-header__cta {
    display: inline-flex;
  }

  .menu-toggle,
  .mobile-nav {
    display: none;
  }

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

  .site-footer__grid {
    grid-template-columns: 1.2fr 1.2fr 1fr;
  }

  .site-footer {
    padding-bottom: var(--space-8);
  }
}

@media (min-width: 1280px) {
  .site-nav__list {
    gap: var(--space-2);
  }
}