/**
 * VINICIUS UITUKE | ENGENHEIRO CIVIL
 * Regras de Responsividade (Mobile-first e Breakpoints)
 */

/* =========================================
   Tablets e Telas Médias (<= 992px)
   ========================================= */
@media (max-width: 992px) {
  .hero-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: left;
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-lg));
  }

  .portrait-frame {
    margin-left: 0;
    max-width: 380px;
  }

  .stages-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .services-comparison-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .disciplines-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .about-wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer-brand {
    grid-column: span 2;
  }
}

/* =========================================
   Tablets e Telas Médias (<= 1024px)
   ========================================= */
@media (max-width: 1024px) {
  :root {
    --header-height: 72px;
  }

  /* Cabeçalho & Menu Mobile */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 2px solid var(--color-copper);
    padding: var(--space-xl) var(--space-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    display: none;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .site-nav.is-open {
    display: block;
    animation: menuSlideDown 250ms cubic-bezier(0.16, 1, 0.3, 1);
  }

  @keyframes menuSlideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    width: 100%;
    white-space: normal;
  }

  .site-nav .nav-link {
    font-size: var(--text-md);
    width: 100%;
    display: block;
    padding: var(--space-xs) 0;
  }

  .site-nav .mobile-cta-item {
    display: none; /* Apenas 1 botão no cabeçalho */
  }
}

/* =========================================
   Smartphones e Telas Pequenas (<= 768px)
   ========================================= */
@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  /* Hero Mobile */
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  /* Espaçamentos e Cartões */
  .section {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-2xl);
  }

  .stage-card,
  .discipline-card,
  .service-card,
  .step-card,
  .compatibilizacao-box,
  .contact-card {
    padding: var(--space-lg);
  }

  .about-credentials-list {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .management-quote-box {
    padding: var(--space-lg);
  }

  .contact-interactive-helper {
    flex-direction: column;
  }

  .contact-select-group {
    width: 100%;
    min-width: 100%;
  }

  .contact-actions .btn {
    width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-brand {
    grid-column: span 1;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  /* Botão Flutuante do WhatsApp em Smartphones */
  .whatsapp-floating-btn {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
  }

  .whatsapp-floating-tooltip {
    display: none; /* Não exibe tooltip em dispositivos móveis touch */
  }

  /* Prevenção para garantir que o botão flutuante não cubra elementos essenciais */
  body {
    padding-bottom: 24px;
  }
}

/* Telas muito pequenas (<= 360px) */
@media (max-width: 360px) {
  .brand-title {
    font-size: 0.95rem;
  }

  .btn {
    padding: 0.75rem 1.25rem;
    font-size: var(--text-xs);
  }
}