/* ============================================================
   components.css — header, footer, botões, cards, transição
   ============================================================ */

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-family: var(--f-slab);
  font-weight: 600;
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 1rem 1.8rem;
  background: transparent;
  border: 1.5px solid var(--c-accent);
  border-radius: 999px;
  color: var(--c-accent);
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.btn .arr { transition: transform var(--dur) var(--ease-out); }
.btn:hover { background: var(--c-accent); border-color: var(--c-accent); color: var(--c-black); }
.btn:hover .arr { transform: translateX(6px); }
.btn--solid {
  background: transparent; border-color: var(--c-accent); color: var(--c-accent); font-weight: 700;
}
.btn--solid:hover { background: var(--c-accent); color: var(--c-black); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: var(--z-header);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
  padding: 1.3rem var(--gutter);
  mix-blend-mode: normal;
  transition: background var(--dur) var(--ease-out), padding var(--dur) var(--ease-out);
}
/* Scrim atrás do header: garante contraste da nav sobre qualquer fundo de
   hero (vídeo/imagem podem ter trechos claros, ex: céu) mesmo antes de
   rolar — o gradiente do próprio .hero escurece mais embaixo, onde o
   texto fica ancorado, e deixa o topo quase transparente. */
.site-header::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 160px; z-index: -1;
  background: linear-gradient(to bottom, rgba(12, 48, 56, 0.75), rgba(12, 48, 56, 0));
  pointer-events: none;
  transition: opacity var(--dur) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(2, 2, 2, 0.82);
  backdrop-filter: blur(10px);
  padding-block: 0.9rem;
  border-bottom: 1px solid var(--c-line);
}
.site-header.is-scrolled::before { opacity: 0; }
.brand { display: inline-flex; align-items: center; }
.brand img { height: 2.2rem; width: auto; display: block; }
.nav { display: flex; align-items: center; gap: 1.1rem; }
.nav a {
  font-family: var(--f-slab); font-size: var(--fs-small);
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-mist);
  position: relative; padding-block: 0.3rem; white-space: nowrap;
  transition: color 0.4s var(--ease-out);
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--c-accent); transition: width 0.4s var(--ease-out);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--c-white); }
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav__cta { margin-left: 0.5rem; }
.nav a.nav__cta { color: var(--c-accent); letter-spacing: 0.04em; padding-block: 1rem; }
.nav a.nav__cta::after { content: none; }
.nav a.nav__cta:hover { color: var(--c-black); }
.nav__cta-icon { width: 16px; height: 16px; flex: none; transition: transform var(--dur) var(--ease-out); }
.nav a.nav__cta:hover .nav__cta-icon { transform: scale(1.15); }

.nav-toggle { display: none; }
@media (max-width: 1180px) {
  .nav-toggle { display: inline-flex; font-family: var(--f-slab); font-size: var(--fs-small); letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-white); }

  /* Menu mobile: painel dropdown abaixo do header, aberto via .nav-open no .site-header.
     Reaproveita o mesmo par duração/easing do resto do site (--dur/--ease-out, o mesmo
     que o header usa pra condensar no scroll) pro painel, e o mesmo "fade-up" do sistema
     de reveals ([data-reveal] em base.css: opacity+translateY) nos itens, só que mais
     rápido e escalonado por nth-child — o equivalente em CSS puro do stagger que o
     IntersectionObserver já faz via JS pros reveals de scroll. */
  .nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: 100%; left: 0; right: 0;
    max-height: calc(100svh - 100%); overflow-y: auto;
    background: var(--c-black); border-bottom: 1px solid var(--c-line);
    padding: 0.5rem var(--gutter) 1.5rem;
    opacity: 0; visibility: hidden; transform: translateY(-10px); pointer-events: none;
    transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility 0s var(--dur);
  }
  .site-header.nav-open .nav {
    opacity: 1; visibility: visible; transform: none; pointer-events: auto;
    transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility 0s;
  }
  .nav a { padding-block: 0.9rem; border-bottom: 1px solid var(--c-line); }
  .nav a::after { display: none; }
  .nav__cta { margin: 1rem 0 0; align-self: flex-start; }

  .nav > * { opacity: 0; transform: translateY(14px); transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out); }
  .site-header.nav-open .nav > * { opacity: 1; transform: none; }
  .nav > *:nth-child(1) { transition-delay: 0.03s; } .nav > *:nth-child(2) { transition-delay: 0.06s; }
  .nav > *:nth-child(3) { transition-delay: 0.09s; } .nav > *:nth-child(4) { transition-delay: 0.12s; }
  .nav > *:nth-child(5) { transition-delay: 0.15s; } .nav > *:nth-child(6) { transition-delay: 0.18s; }
  .nav > *:nth-child(7) { transition-delay: 0.21s; } .nav > *:nth-child(8) { transition-delay: 0.24s; }
  .nav > *:nth-child(9) { transition-delay: 0.27s; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--c-green-900); padding-block: clamp(2.25rem, 4.5vw, 4rem) 2rem; border-top: 1px solid var(--c-line); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem; }
.footer-grid h4 { font-family: var(--f-slab); font-weight: 500; font-size: var(--fs-small); letter-spacing: 0.16em; color: var(--c-accent); text-transform: uppercase; margin-bottom: 1.2rem; }
.footer-grid ul { list-style: none; display: grid; gap: 0.6rem; }
.footer-grid a { color: var(--c-mist); transition: color 0.3s var(--ease-out); }
.footer-grid a:hover { color: var(--c-white); }
.footer-wa-icon { width: 26px; height: 26px; vertical-align: -7px; color: var(--c-accent); transition: color 0.3s var(--ease-out), transform 0.3s var(--ease-out); }
.footer-grid a:hover .footer-wa-icon { color: var(--c-accent-soft); transform: scale(1.12); }
.footer-cta h2 { font-size: var(--fs-h2); margin-bottom: 1.4rem; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--c-line); font-size: var(--fs-small); color: var(--c-green-500); }
.footer-bottom a { color: var(--c-green-500); transition: color 0.3s var(--ease-out); }
.footer-bottom a:hover { color: var(--c-accent); }
.footer-legal { display: flex; gap: 0.5rem; }
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-cta { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; gap: 0.6rem; align-items: flex-start; }
}

/* placeholder de imagem (gradiente com label) */
.ph {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--c-green-700), var(--c-green-900) 60%, var(--c-black));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--f-slab); font-size: var(--fs-small); letter-spacing: 0.2em;
  text-transform: uppercase; color: rgba(255,255,255,0.18);
}
.ph--violet { background: linear-gradient(135deg, #2a1a4a, var(--c-green-900) 70%); }

/* ---------- CTA "equipe de construtores" (faixa verde + seta animada) ---------- */
.builders-cta { background: var(--c-green-900); overflow: hidden; }
.builders-cta__inner {
  display: flex; align-items: center; justify-content: space-between; gap: clamp(2rem, 6vw, 5rem);
  padding-block: clamp(3.5rem, 9vw, 8rem);
}
.builders-cta h2 { font-size: var(--fs-h1); max-width: 14ch; }
.builders-cta p { margin-top: 1.1rem; max-width: 40ch; color: var(--c-mist); }
.builders-cta__arrow {
  flex: none; color: var(--c-accent); font-family: var(--f-body); line-height: 0;
  font-size: clamp(3.5rem, 8vw, 7rem);
  animation: arrowNudge 2.4s var(--ease-io) infinite;
}
@keyframes arrowNudge { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(18px); } }
@media (max-width: 760px) { .builders-cta__inner { flex-direction: column; align-items: flex-start; gap: 2rem; } }

/* ---------- Faixa de contato (antes do rodapé) ---------- */
.contact-band { background: var(--c-black); border-top: 1px solid var(--c-line); text-align: center; }
.contact-band p { color: var(--c-accent); }
.contact-band h2 { font-size: var(--fs-h1); font-weight: 800; max-width: 16ch; margin: 1rem auto 1.8rem; }

/* ---------- Overlay de transição (Barba) ---------- */
.transition-overlay {
  position: fixed; inset: 0; z-index: var(--z-overlay);
  background: var(--c-accent);
  transform: scaleY(0); transform-origin: bottom;
  pointer-events: none;
}

/* ---------- Banner de consentimento de cookies ---------- */
.cookie-consent {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: var(--z-cookie);
  background: var(--c-green-900); border-top: 1px solid var(--c-line);
  padding: 1.2rem clamp(1rem, 4vw, 2rem);
}
.cookie-consent[hidden] { display: none; }
.cookie-consent__inner {
  max-width: 1200px; margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap;
}
.cookie-consent__inner p { font-size: var(--fs-small); color: var(--c-mist); max-width: 62ch; margin: 0; }
.cookie-consent__inner a { color: var(--c-accent); text-decoration: underline; }
.cookie-consent__actions { display: flex; gap: 0.75rem; flex-shrink: 0; }
@media (max-width: 640px) {
  .cookie-consent__inner { flex-direction: column; align-items: flex-start; }
  .cookie-consent__actions { width: 100%; }
  .cookie-consent__actions .btn { flex: 1; }
}