/* =============================================================
   COMPONENTES GLOBAIS
   Botões, header com dropdown Sistemas, footer 4 colunas,
   cards reutilizáveis e estados de mobile.
   ============================================================= */

/* -----------------------------------------------------------
   1. BOTÕES
   ----------------------------------------------------------- */

.btn {
  --btn-py: var(--space-sm);
  --btn-px: var(--space-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: var(--btn-py) var(--btn-px);
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body);
  line-height: 1;
  border-radius: var(--radius-sm);
  border: var(--border-medium) solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--motion-fast) var(--ease-out),
    color var(--motion-fast) var(--ease-out),
    border-color var(--motion-fast) var(--ease-out),
    transform var(--motion-fast) var(--ease-out),
    box-shadow var(--motion-base) var(--ease-out);
  white-space: nowrap;
}

.btn-sm { --btn-py: var(--space-xs); --btn-px: var(--space-md); font-size: var(--fs-caption); }
.btn-lg { --btn-py: var(--space-md); --btn-px: var(--space-xl); font-size: var(--fs-body-lg); }

/* Primary, laranja sólido */
.btn-primary {
  background: var(--action-primary);
  color: var(--action-primary-text);
  border-color: var(--action-primary);
}
.btn-primary:hover {
  background: var(--action-primary-hover);
  border-color: var(--action-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-orange);
}
.btn-primary:active { transform: translateY(0); }

/* Secondary, outline laranja */
.btn-secondary {
  background: transparent;
  color: var(--action-secondary-text);
  border-color: var(--action-secondary-border);
}
.btn-secondary:hover {
  background: var(--action-primary);
  color: var(--action-primary-text);
  transform: translateY(-1px);
}

/* Ghost, texto com seta animada */
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-xs);
  border: 0;
}
.btn-ghost::after {
  content: '→';
  display: inline-block;
  margin-left: var(--space-2xs);
  transition: transform var(--motion-fast) var(--ease-out);
}
.btn-ghost:hover { color: var(--text-brand); }
.btn-ghost:hover::after { transform: translateX(4px); }

/* Botões em seções light */
.section--light .btn-ghost,
.section--light-soft .btn-ghost { color: var(--text-inverse); }

/* -----------------------------------------------------------
   2. HEADER STICKY
   ----------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--motion-base) var(--ease-out), background-color var(--motion-base) var(--ease-out);
}

/* Quando rolado, aparece borda sutil */
.site-header.is-scrolled {
  background: rgba(0, 0, 0, 0.92);
  border-bottom-color: var(--border-subtle);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  height: 72px;
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.nav__brand img {
  height: 28px;
  width: auto;
  display: block;
}
.nav__brand:hover { opacity: 0.85; }

/* Menu desktop */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3xs);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  padding: var(--space-2xs) 0;
  transition: color var(--motion-fast) var(--ease-out);
}
.nav__link:hover,
.nav__link[aria-expanded="true"] {
  color: var(--text-primary);
}
.nav__link.is-active {
  color: var(--text-primary);
}
.nav__link.is-active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--action-primary);
}

/* Ícone chevron do dropdown */
.nav__chevron {
  width: 10px;
  height: 10px;
  transition: transform var(--motion-fast) var(--ease-out);
}
.nav__link[aria-expanded="true"] .nav__chevron {
  transform: rotate(180deg);
}

/* CTA do header */
.nav__cta {
  flex-shrink: 0;
}

/* Dropdown Sistemas */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-panel {
  position: absolute;
  top: calc(100% + var(--space-sm));
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 560px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--motion-base) var(--ease-out),
    transform var(--motion-base) var(--ease-out),
    visibility 0s linear var(--motion-base);
}

.nav__dropdown[data-open="true"] .nav__dropdown-panel,
.nav__dropdown:hover .nav__dropdown-panel,
.nav__dropdown:focus-within .nav__dropdown-panel {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0s;
}

.nav__dropdown-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xs);
}

.nav__dropdown-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: background-color var(--motion-fast) var(--ease-out);
}
.nav__dropdown-item:hover {
  background: var(--bg-elevated);
}

.nav__dropdown-item__title {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
}
.nav__dropdown-item__index {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-brand);
  font-weight: var(--fw-medium);
}
.nav__dropdown-item__desc {
  font-size: var(--fs-caption);
  color: var(--text-secondary);
  line-height: var(--lh-snug);
}

/* Hambúrguer (mobile) */
.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.nav__toggle-icon,
.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  display: block;
  position: absolute;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-pill);
  transition: transform var(--motion-base) var(--ease-out), opacity var(--motion-fast) var(--ease-out);
}
.nav__toggle-icon { position: relative; }
.nav__toggle-icon::before { top: -7px; left: 0; }
.nav__toggle-icon::after  { top:  7px; left: 0; }

/* Estado aberto do hambúrguer (vira X) */
.nav__toggle[aria-expanded="true"] .nav__toggle-icon {
  transform: rotate(0);
  background: transparent;
}
.nav__toggle[aria-expanded="true"] .nav__toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* -----------------------------------------------------------
   3. MOBILE NAV (drawer full-screen)
   Por padrão, oculto em todas as larguras.
   Só ganha existência visual dentro da media query mobile.
   ----------------------------------------------------------- */

.nav-mobile {
  display: none;
}

@media (max-width: 1023px) {
  .nav__menu,
  .nav__cta--desktop {
    display: none;
  }
  .nav__toggle {
    display: inline-flex;
  }

  .site-header.is-menu-open {
    background: var(--bg-primary);
  }

  /* O menu mobile fica em um overlay separado, controlado pelo JS */
  .nav-mobile {
    display: block;
    position: fixed;
    inset: 72px 0 0 0;
    z-index: var(--z-overlay);
    background: var(--bg-primary);
    padding: var(--space-xl) var(--container-px);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition:
      opacity var(--motion-base) var(--ease-out),
      transform var(--motion-base) var(--ease-out),
      visibility 0s linear var(--motion-base);
  }
  .nav-mobile.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition-delay: 0s;
  }

  .nav-mobile__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }

  .nav-mobile__link {
    display: block;
    font-size: var(--fs-h2);
    font-weight: var(--fw-light);
    line-height: var(--lh-tight);
    letter-spacing: var(--ls-tight);
    color: var(--text-primary);
    padding: var(--space-2xs) 0;
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav-mobile__link strong { font-weight: var(--fw-semibold); }

  .nav-mobile__section-title {
    font-size: var(--fs-eyebrow);
    font-weight: var(--fw-medium);
    text-transform: uppercase;
    letter-spacing: var(--ls-wider);
    color: var(--text-brand);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
  }

  .nav-mobile__sub {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .nav-mobile__sub-link {
    display: block;
    font-size: var(--fs-body-lg);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    padding: var(--space-2xs) 0;
  }
  .nav-mobile__sub-link:hover { color: var(--text-primary); }
  .nav-mobile__sub-link span {
    display: block;
    font-size: var(--fs-caption);
    font-weight: var(--fw-regular);
    color: var(--text-muted);
    margin-top: 2px;
  }

  .nav-mobile__cta {
    margin-top: var(--space-2xl);
    width: 100%;
  }
}

/* Quando menu mobile está aberto, prevenir scroll do body */
body.is-locked {
  overflow: hidden;
}

/* -----------------------------------------------------------
   4. FOOTER
   ----------------------------------------------------------- */

.site-footer {
  background: var(--color-cinza-700);
  color: var(--text-secondary);
  padding-block: var(--space-3xl) var(--space-xl);
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (max-width: 1023px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}
@media (max-width: 540px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

.footer__col-title {
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--text-brand);
  margin-bottom: var(--space-md);
}

.footer__brand-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.footer__brand-mark {
  height: 48px;
  width: auto;
  display: block;
}

.footer__manifest {
  font-size: var(--fs-body);
  font-weight: var(--fw-light);
  line-height: var(--lh-relaxed);
  color: var(--text-primary);
  letter-spacing: var(--ls-tight);
  max-width: 32ch;
  margin: 0;
}
.footer__manifest strong {
  font-weight: var(--fw-semibold);
  color: var(--text-brand);
}

.footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__link {
  display: inline-block;
  font-size: var(--fs-body);
  color: var(--text-secondary);
  padding: 2px 0;
  transition: color var(--motion-fast) var(--ease-out);
}
.footer__link:hover {
  color: var(--text-brand);
}

.footer__contact {
  font-size: var(--fs-body);
  color: var(--text-secondary);
}
.footer__contact-line {
  display: block;
  margin-bottom: var(--space-2xs);
}
.footer__contact-line a:hover {
  color: var(--text-brand);
}

.footer__bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__legal {
  font-size: var(--fs-caption);
  color: var(--text-muted);
}

.footer__legal-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--fs-caption);
}
.footer__legal-links a {
  color: var(--text-muted);
}
.footer__legal-links a:hover { color: var(--text-brand); }

/* -----------------------------------------------------------
   5. CARDS REUTILIZÁVEIS
   ----------------------------------------------------------- */

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition:
    border-color var(--motion-base) var(--ease-out),
    transform var(--motion-base) var(--ease-out),
    box-shadow var(--motion-base) var(--ease-out);
}
.card--hover:hover {
  border-color: var(--border-brand);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card__eyebrow {
  font-size: var(--fs-eyebrow);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  color: var(--text-brand);
  margin-bottom: var(--space-sm);
}

.card__title {
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.card__body {
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: var(--text-secondary);
}

/* Variante de card em seção light */
.section--light .card,
.section--light-soft .card {
  background: var(--bg-inverse);
  border-color: var(--border-inverse);
}
.section--light .card__title,
.section--light-soft .card__title {
  color: var(--text-inverse);
}
.section--light .card__body,
.section--light-soft .card__body {
  color: var(--text-inverse-soft);
}

/* -----------------------------------------------------------
   6. BANNER DE COOKIES LGPD
   ----------------------------------------------------------- */

.cookie-banner {
  position: fixed;
  left: var(--space-md);
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: var(--z-modal);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-lg);
  align-items: center;
  max-width: 920px;
  margin-inline: auto;
  transform: translateY(120%);
  opacity: 0;
  visibility: hidden;
  transition:
    transform var(--motion-slow) var(--ease-out),
    opacity var(--motion-slow) var(--ease-out),
    visibility 0s linear var(--motion-slow);
}

.cookie-banner.is-visible {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}

@media (max-width: 768px) {
  .cookie-banner {
    grid-template-columns: 1fr;
    padding: var(--space-md);
  }
}

.cookie-banner__text {
  font-size: var(--fs-caption);
  line-height: var(--lh-relaxed);
  color: var(--text-secondary);
}
.cookie-banner__text strong {
  display: block;
  color: var(--text-primary);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body);
  margin-bottom: var(--space-2xs);
}
.cookie-banner__text a {
  color: var(--text-brand);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.cookie-btn {
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--ease-out), color var(--motion-fast) var(--ease-out);
  white-space: nowrap;
}

.cookie-btn--accept {
  background: var(--action-primary);
  color: var(--action-primary-text);
  border-color: var(--action-primary);
}
.cookie-btn--accept:hover {
  background: var(--action-primary-hover);
  border-color: var(--action-primary-hover);
}

.cookie-btn--reject {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-strong);
}
.cookie-btn--reject:hover {
  color: var(--text-primary);
  border-color: var(--text-primary);
}