/* ============================================================
   PIVA Educacional — Sobre CSS
   Mínimo — herda shared.css + tailwind.css.
   ============================================================ */

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

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

/* Freio detalhe com hover sutil */
.freio-detalhe {
  transition: transform var(--duration-normal) var(--ease-premium);
}

.freio-detalhe:hover {
  transform: translateX(4px);
}

/* Pilar detalhe com linha lateral sutil */
.pilar-detalhe {
  padding-left: 0;
  position: relative;
}


/* ============================================================
   NAV CANÔNICA (#nav-header-c) — institucional, sticky opaca.
   Self-contained: classes .nav-dropdown* vêm de shared.css;
   o resto fica aqui (sobre não carrega homepage.css/js).
   ============================================================ */

.sobre-nav {
  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));
}

.sobre-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sobre-nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

#nav-header-c .nav-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

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

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

.sobre-desktop-nav {
  display: none;
}

@media (min-width: 768px) {
  .sobre-desktop-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

#nav-header-c .nav-link,
#nav-header-c .nav-dropdown-btn {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.875rem;
  color: var(--text);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--duration-fast) var(--ease-premium);
}

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

#nav-header-c .nav-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.sobre-prog-chevron {
  width: 0.75rem;
  height: 0.75rem;
  transition: transform var(--duration-normal) var(--ease-premium);
}

/* Dropdown desktop: abre no hover e no foco-dentro (sem JS) */
.sobre-prog-wrap {
  position: relative;
}

.sobre-prog-panel {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-fast) var(--ease-premium);
}

.sobre-prog-wrap:hover .sobre-prog-panel,
.sobre-prog-wrap:focus-within .sobre-prog-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.sobre-prog-wrap:hover .sobre-prog-chevron,
.sobre-prog-wrap:focus-within .sobre-prog-chevron {
  transform: rotate(180deg);
}

#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 var(--duration-fast) var(--ease-premium);
}

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

/* Mobile: hamburger via <details> */
.sobre-mobile-details {
  position: relative;
}

@media (min-width: 768px) {
  .sobre-mobile-details { display: none; }
}

.sobre-mobile-details > summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
  color: var(--text);
  cursor: pointer;
}

.sobre-mobile-details > summary::-webkit-details-marker {
  display: none;
}

.sobre-mobile-details > summary svg {
  width: 1.5rem;
  height: 1.5rem;
}

.sobre-mobile-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  right: -1.5rem;
  width: 100vw;
  max-width: 100vw;
  background: var(--bg);
  border-top: 1px solid rgba(28, 28, 28, 0.1);
  border-bottom: 1px solid rgba(28, 28, 28, 0.1);
  padding: 1rem 1.5rem 1.25rem;
  max-height: calc(100dvh - 4.5rem);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.sobre-mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-width: 1280px;
  margin: 0 auto;
}

.sobre-mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 0;
  min-height: 44px;
  color: var(--text);
  text-decoration: none;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.9375rem;
}

.sobre-mobile-prog-summary {
  list-style: none;
  cursor: pointer;
}

.sobre-mobile-prog-summary::-webkit-details-marker {
  display: none;
}

.mobile-prog-chevron {
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-premium);
}

.sobre-mobile-prog[open] .mobile-prog-chevron {
  transform: rotate(180deg);
}

.sobre-mobile-cta {
  margin-top: 0.75rem;
  display: block;
  text-align: center;
  padding: 0.875rem;
  background: var(--accent);
  color: #fff;
  border-radius: 0.5rem;
  font-weight: 600;
  font-family: 'Source Sans 3', sans-serif;
  text-decoration: none;
  min-height: 44px;
}


/* ============================================================
   FOOTER CANÔNICO (#footer-c) — portado de homepage.css.
   sobre não carrega homepage.css, então as regras vivem aqui.
   ============================================================ */

#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 var(--duration-fast) var(--ease-premium);
}

.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 var(--duration-fast) var(--ease-premium);
}

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 var(--duration-fast) var(--ease-premium);
}

.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;
}