/* ============================================================
   PIVA Educacional — Contato CSS
   ============================================================ */

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 400ms cubic-bezier(0.32, 0.72, 0, 1),
    opacity 250ms cubic-bezier(0.32, 0.72, 0, 1);
  opacity: 0;
}

.faq-item.is-open .faq-answer {
  max-height: 400px;
  opacity: 1;
}

.faq-item.is-open [data-faq-chevron] {
  transform: rotate(180deg);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Form focus — reforço editorial */
#contato-form input:focus,
#contato-form select:focus,
#contato-form textarea:focus {
  box-shadow: 0 0 0 3px rgba(0, 137, 148, 0.12);
}

/* ============================================================
   NAV canônica (#nav-header-c) — sticky, fundo sólido.
   Os estilos do dropdown (.nav-dropdown*) vêm de shared.css.
   Estas regras espelham home/css/homepage.css para a unidade
   contato, que não carrega o homepage.css nem o seu scroll JS.
   ============================================================ */
#nav-header-c {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-whisper, rgba(28, 28, 28, 0.08));
}

#nav-header-c.is-menu-open {
  background: var(--bg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

#mobile-menu-c {
  max-height: calc(100dvh - 4.5rem);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.mobile-prog-chevron {
  flex-shrink: 0;
  transition: transform 250ms cubic-bezier(0.32, 0.72, 0, 1);
}
#mobile-menu-c details[open] .mobile-prog-chevron {
  transform: rotate(180deg);
}

#nav-header-c .nav-link,
#nav-header-c .nav-dropdown-btn {
  color: var(--text);
  transition: color 150ms cubic-bezier(0.32, 0.72, 0, 1);
}

#nav-header-c .nav-logo-link {
  display: inline-flex;
  align-items: center;
}

.nav-logo-img {
  height: 2rem;
  width: auto;
  display: block;
  user-select: none;
}

@media (max-width: 640px) {
  .nav-logo-img { height: 1.625rem; }
}

#nav-header-c .nav-link:hover,
#nav-header-c .nav-dropdown-btn:hover {
  color: var(--primary);
}

#nav-header-c .nav-hamburger {
  color: var(--text);
}

#nav-header-c .nav-cta-btn {
  background: var(--accent);
  color: #fff;
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  display: inline-block;
  transition: background 150ms cubic-bezier(0.32, 0.72, 0, 1);
}

#nav-header-c .nav-cta-btn:hover {
  background: var(--accent-dark);
}

/* ============================================================
   FOOTER canônico (#footer-c) — espelho de homepage.css
   ============================================================ */
#footer-c {
  background: var(--text);
  padding: 4.5rem 1.25rem 2.5rem;
}

@media (min-width: 768px) {
  #footer-c {
    padding: 5rem 3rem 2.5rem;
  }
}

.footer-c-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .footer-c-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
  }
}

.footer-c-brand-name {
  font-family: 'Lora', serif;
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--secondary);
  letter-spacing: -0.01em;
  display: block;
  margin-bottom: 0.375rem;
}

.footer-c-brand-sub {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(245, 237, 227, 0.45);
  display: block;
  margin-bottom: 1rem;
}

.footer-c-tagline {
  font-family: 'Lora', serif;
  font-style: italic;
  font-size: 0.9375rem;
  color: rgba(245, 237, 227, 0.65);
  line-height: 1.5;
  max-width: 24ch;
  margin: 0;
}

.footer-c-col-title {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(245, 237, 227, 0.4);
  margin-bottom: 1.25rem;
}

.footer-c-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-c-links a {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.875rem;
  color: rgba(245, 237, 227, 0.7);
  text-decoration: none;
  transition: color 150ms cubic-bezier(0.32, 0.72, 0, 1);
}

.footer-c-links a:hover {
  color: var(--secondary);
}

address.footer-c-address {
  font-style: normal;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.875rem;
  color: rgba(245, 237, 227, 0.7);
  line-height: 1.75;
}

address.footer-c-address a {
  color: rgba(245, 237, 227, 0.7);
  text-decoration: none;
  transition: color 150ms cubic-bezier(0.32, 0.72, 0, 1);
}

address.footer-c-address a:hover {
  color: var(--primary);
}

.footer-c-hours {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.75rem;
  color: rgba(245, 237, 227, 0.4);
  line-height: 1.7;
  margin-top: 0.75rem;
}

.footer-c-social {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-c-social a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.875rem;
  color: rgba(245, 237, 227, 0.7);
  text-decoration: none;
  transition: color 150ms cubic-bezier(0.32, 0.72, 0, 1);
}

.footer-c-social a:hover {
  color: var(--secondary);
}

.footer-c-bar {
  padding-top: 1.75rem;
  border-top: 1px solid rgba(245, 237, 227, 0.1);
  max-width: 1280px;
  margin: 0 auto;
}

.footer-c-copy {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.75rem;
  color: rgba(245, 237, 227, 0.35);
  margin: 0;
}