/* =============================================================
   COMPONENTS — Header, footer, nav, botões, utilitários visuais
   Grupo Ingá — Site Institucional
   ============================================================= */


/* ─────────────────────────────────────────
   BOTÕES
───────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 36px;
  font-family: var(--font-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.btn:active {
  transform: scale(0.97);
}

/* Primário — verde vibrante com gradiente */
.btn--primary {
  background-image: var(--grad-green);
  background-size: 200% auto;
  color: var(--color-white);
  border: none;
  box-shadow: 0 4px 15px rgba(46, 125, 50, 0.3);
}

.btn--primary:hover {
  background-position: right center;
  color: var(--color-white);
  box-shadow: 0 10px 25px rgba(46, 125, 50, 0.45);
  transform: translateY(-3px);
}

/* Outline — borda verde, fundo transparente */
.btn--outline {
  background-color: transparent;
  color: var(--color-brand-green);
  border-color: var(--color-brand-green);
}

.btn--outline:hover {
  background-color: var(--color-brand-green);
  color: var(--color-white);
  box-shadow: 0 8px 24px rgba(45, 106, 45, 0.25);
}

/* Dourado — luxo com gradiente */
.btn--gold {
  background-image: var(--grad-gold-metallic);
  background-size: 200% auto;
  color: var(--color-white);
  border: none;
  box-shadow: 0 4px 12px rgba(153, 101, 21, 0.2);
}

.btn--gold:hover {
  background-position: right center;
  box-shadow: 0 8px 24px rgba(153, 101, 21, 0.35);
  transform: translateY(-2px);
}

/* Branco — para uso sobre fundo verde */
.btn--white {
  background-color: var(--color-white);
  color: var(--color-brand-green);
  border-color: var(--color-white);
}

.btn--white:hover {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

/* Tamanho grande */
.btn--lg {
  padding: 18px 48px;
  font-size: var(--font-size-base);
}


/* ─────────────────────────────────────────
   TOPBAR
───────────────────────────────────────── */
.topbar {
  background: var(--grad-green-premium);
  color: var(--color-white);
  padding: 8px 0;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar__contact {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.topbar__contact a {
  color: var(--color-white);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: opacity var(--transition-fast);
}

.topbar__contact a:hover {
  opacity: 0.8;
}

.topbar__socials {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.topbar__socials a {
  color: var(--color-white);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  display: block;
}

.topbar__socials a:hover {
  opacity: 0.8;
  transform: translateY(-2px);
}

/* ─────────────────────────────────────────
   HEADER
───────────────────────────────────────── */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-neutral-200);
  transition: box-shadow var(--transition-normal);
}

.header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

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

.header__logo img {
  height: 60px;
  width: auto;
}

.header__cta {
  flex-shrink: 0;
}


/* ─────────────────────────────────────────
   NAV DESKTOP
───────────────────────────────────────── */

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

.nav__link {
  font-family: var(--font-primary);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral-700);
  text-decoration: none;
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition-fast);
}


.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-gold-metallic);
  transition: width var(--transition-normal);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link:hover {
  color: var(--color-brand-green);
}

.nav__link--active {
  color: var(--color-brand-green);
  font-weight: var(--font-weight-semibold);
}


/* ─────────────────────────────────────────
   HAMBURGER
───────────────────────────────────────── */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-neutral-900);
  border-radius: var(--radius-full);
  transition: transform var(--transition-normal),
              opacity var(--transition-normal);
}

/* Estado aberto */
.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
}
.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}


/* ─────────────────────────────────────────
   NAV MOBILE
───────────────────────────────────────── */

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .header__cta {
    display: none;
  }

  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-neutral-200);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
  }

  .nav.is-open {
    max-height: 400px;
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-md) 0;
  }

  .nav__item {
    width: 100%;
  }

  .nav__link {
    display: block;
    padding: var(--space-md) var(--container-pad);
    font-size: var(--font-size-base);
  }

  .nav__link::after {
    display: none;
  }

  .nav__link--active {
    background-color: var(--color-brand-green-light);
  }
}


/* ─────────────────────────────────────────
   HERO INTERNO (páginas internas)
───────────────────────────────────────── */

.page-hero {
  background-color: var(--color-brand-green-light);
  border-bottom: 3px solid var(--color-brand-gold);
  padding: var(--space-2xl) 0;
}

.page-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-brand-green);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.page-hero__eyebrow::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 2px;
  background-image: var(--grad-gold-metallic);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.page-hero__title {
  font-family: var(--font-serif);
  font-size: var(--font-size-3xl);
  color: var(--color-brand-green-dark);
}

@media (max-width: 768px) {
  .page-hero {
    padding: var(--space-xl) 0;
  }
  .page-hero__title {
    font-size: var(--font-size-2xl);
  }
}


/* ─────────────────────────────────────────
   FOOTER
───────────────────────────────────────── */

.footer {
  background-color: var(--color-neutral-900);
  color: var(--color-neutral-400);
  padding-top: var(--space-2xl);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand img {
  width: 180px;
  height: auto;
}

.footer__tagline {
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-neutral-400);
  font-style: italic;
}

.footer__nav-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.footer__nav ul,
.footer__contact ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__nav a,
.footer__contact a,
.footer__contact li {
  font-size: var(--font-size-sm);
  color: var(--color-neutral-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__nav a:hover,
.footer__contact a:hover {
  color: var(--color-white);
}

.footer__bottom {
  padding: var(--space-md) 0;
}

.footer__bottom p {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-400);
  text-align: center;
}

@media (max-width: 768px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ─────────────────────────────────────────
   POLIMENTO VISUAL & RESPONSIVIDADE GLOBAL
───────────────────────────────────────── */

/* Skip to content — acessibilidade */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 9999;
  background-color: var(--color-brand-green);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
}

/* Visually hidden (screen readers only) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus visible global — sem outline feio, mas acessível */
:focus-visible {
  outline: 3px solid var(--color-brand-green);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Scroll reveal — estado inicial */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay escalonado em grids */
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal:nth-child(5) { transition-delay: 0.32s; }

/* Respeitar preferência por movimento reduzido */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Imagens responsivas globais */
img {
  max-width: 100%;
  height: auto;
}

/* Ajuste de espaçamento em telas muito pequenas */
@media (max-width: 360px) {
  .container {
    padding-inline: var(--space-md);
  }

  .btn--lg {
    padding: 14px 24px;
    font-size: var(--font-size-sm);
  }

  .section {
    padding-block: var(--space-xl);
  }
}

/* ─────────────────────────────────────────
   FOOTER — Redes sociais
───────────────────────────────────────── */

.footer__inner {
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
}

.footer__social-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__social-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-neutral-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__social-link:hover {
  color: var(--color-white);
}

@media (max-width: 1024px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .footer__inner {
    grid-template-columns: 1fr;
  }
}