/* main.css — fontes, tipografia base, layout e estrutura (header/footer) */

/* ===== Fontes self-hosted ===== */
@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/inter-var.woff2') format('woff2-variations'), url('/assets/fonts/inter-var.woff2') format('woff2');
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Roboto Mono';
  src: url('/assets/fonts/robotomono-var.woff2') format('woff2-variations'), url('/assets/fonts/robotomono-var.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Allura';
  src: url('/assets/fonts/allura-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ===== Base ===== */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--color-primary-darker);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); font-weight: 600; }
h4 { font-size: var(--text-lg); font-weight: 600; }

p { color: var(--color-text); }

.lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

a {
  transition: color var(--transition-fast);
}

.text-link {
  color: var(--color-primary);
  font-weight: 600;
  text-underline-offset: 3px;
  text-decoration: underline;
  text-decoration-color: var(--color-neutral-light);
}
.text-link:hover { text-decoration-color: currentColor; }

.wordmark {
  font-family: var(--font-script);
  font-weight: 400;
}

/* ===== Skip link ===== */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 1000;
  background: var(--color-primary);
  color: var(--color-text-on-dark);
  padding: var(--space-3) var(--space-5);
  border-radius: 0 0 var(--radius-md) 0;
  font-weight: 600;
}
.skip-link:focus {
  left: 0;
}

/* ===== Foco visível ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--radius-sm);
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

main { display: block; }

section {
  padding-block: var(--space-16);
}

.section-tight { padding-block: var(--space-10); }
.section-loose { padding-block: var(--space-24); }

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-10);
}
.section-head.center { margin-inline: auto; text-align: center; }

.section-head h2 { margin-top: var(--space-3); }
.section-head p { margin-top: var(--space-4); }

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-8);
}

.stack { display: flex; flex-direction: column; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.bg-surface { background: var(--color-surface); }

/* Fundo alternativo de seção — Alumínio (marca), a pedido do cliente.
   Título/ícones/textos soltos direto sobre o alumínio ficam claros (brancos).
   Conteúdo dentro de .card (fundo branco) mantém suas próprias cores escuras
   (ver overrides em components.css) — não é afetado por estar dentro de uma
   seção com fundo alumínio. */
.bg-tint {
  background: var(--color-neutral);
  color: var(--color-text-on-dark);
}
.bg-tint h1, .bg-tint h2, .bg-tint h3, .bg-tint h4 { color: var(--color-text-on-dark); }
.bg-tint .lead, .bg-tint p { color: var(--color-text-on-dark); }
.bg-tint .eyebrow { color: var(--color-text-on-dark); }
.bg-tint .eyebrow::before { background: var(--color-text-on-dark); }

.bg-tint .timeline { border-left-color: var(--color-border-on-dark); }
.bg-tint .timeline-item::before { border-color: var(--color-neutral); }
.bg-tint .timeline-item time { color: var(--color-text-on-dark); }
.bg-tint .timeline-item p { color: var(--color-text-on-dark); }

/* FAQ em acordeão direto sobre o alumínio */
.bg-tint .accordion-item { border-bottom-color: var(--color-border-on-dark); }
.bg-tint .accordion-trigger .icon-plus { border-color: var(--color-border-on-dark); }
.bg-tint .accordion-content { color: var(--color-text-on-dark); }

.bg-dark {
  background: var(--color-primary-darker);
  color: var(--color-text-on-dark);
}
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--color-text-on-dark); }
.bg-dark .lead, .bg-dark p { color: var(--color-text-on-dark-muted); }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--color-primary);
  border-bottom: 1px solid var(--color-primary-dark);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-6);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.brand img { width: 38px; height: auto; }
.brand .wordmark {
  font-size: 1.6rem;
  color: var(--color-primary-darker);
  line-height: 1;
  margin-top: 2px;
}

/* No header, o fundo é o azul-petróleo: logo, texto e links precisam da versão clara */
.site-header .brand img { filter: brightness(0) invert(1); }
.site-header .brand .wordmark { color: var(--color-text-on-dark); }

.main-nav {
  display: none;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.main-nav a {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-on-dark-muted);
  padding-block: var(--space-2);
  border-bottom: 2px solid transparent;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-text-on-dark);
  border-bottom-color: var(--color-text-on-dark);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.support-link {
  display: none;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-on-dark-muted);
}
.support-link:hover { color: var(--color-text-on-dark); }

/* CTA "Solicitar Cotação" no header: inverter para branco, já que o fundo agora é azul-petróleo */
.site-header .btn-primary {
  background: var(--color-surface);
  color: var(--color-primary-darker);
}
.site-header .btn-primary:hover {
  background: var(--color-bg);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(247, 245, 240, 0.1);
  border: 1px solid var(--color-border-on-dark);
  color: var(--color-text-on-dark);
}
.nav-toggle svg { width: 20px; height: 20px; }

.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-height) 0 0 0;
  z-index: 490;
  background: var(--color-bg);
  overflow-y: auto;
  padding: var(--space-6) var(--container-padding) var(--space-10);
}
.mobile-nav.is-open { display: block; }
.mobile-nav ul { display: flex; flex-direction: column; gap: var(--space-1); }
.mobile-nav a {
  display: block;
  padding: var(--space-4) var(--space-2);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary-darker);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav .header-actions {
  margin-top: var(--space-8);
  flex-direction: column;
  align-items: stretch;
}

body.nav-open { overflow: hidden; }

/* ===== Breadcrumbs ===== */
.breadcrumbs {
  padding-block: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}
.breadcrumbs ol {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.breadcrumbs li { display: flex; align-items: center; gap: var(--space-2); }
.breadcrumbs li:not(:last-child)::after {
  content: '/';
  color: var(--color-neutral-light);
}
.breadcrumbs a { color: var(--color-text-muted); font-weight: 500; }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs li[aria-current] { color: var(--color-primary-darker); font-weight: 600; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary-darker);
  color: var(--color-text-on-dark-muted);
  padding-block: var(--space-16) var(--space-8);
}
.footer-grid {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
}
.footer-brand .brand .wordmark { color: var(--color-text-on-dark); }
.footer-brand img { filter: brightness(0) invert(1); }
.footer-brand p { margin-top: var(--space-4); max-width: 26rem; color: var(--color-text-on-dark-muted); }

.footer-col h4 { color: var(--color-text-on-dark); margin-bottom: var(--space-4); font-size: var(--text-sm); text-transform: uppercase; letter-spacing: 0.06em; }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { font-size: var(--text-sm); color: var(--color-text-on-dark-muted); }
.footer-col a:hover { color: var(--color-text-on-dark); }

.footer-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(247, 245, 240, 0.08);
  border: 1px solid var(--color-border-on-dark);
}
.footer-social a:hover { background: var(--color-primary); }
.footer-social svg { width: 18px; height: 18px; }

.footer-bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-on-dark);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-xs);
}

.credit {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* ===== Reveal on scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Utilitários ===== */
/* título em uma linha só a partir do breakpoint sm — quebra normalmente no celular */
.nowrap-desktop { white-space: normal; }
@media (min-width: 640px) {
  .nowrap-desktop { white-space: nowrap; }
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.content-visibility-auto {
  content-visibility: auto;
  contain-intrinsic-size: 800px;
}