/* header.css — Barra minimalista, menu overlay e botão WhatsApp flutuante */

/* === BARRA === */
.site-header {
  position: fixed;
  top: var(--card-gutter);
  left: var(--card-gutter);
  right: var(--card-gutter);
  border-radius: var(--card-radius) var(--card-radius) 0 0;
  z-index: 1200;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: clamp(20px, 4vw, 48px);
  background: transparent;
  transition: background-color var(--transition), box-shadow var(--transition), border-color var(--transition), top var(--transition), left var(--transition), right var(--transition), border-radius var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header--scrolled {
  top: 0;
  left: 0;
  right: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom-color: var(--border);
}

body.menu-open .site-header {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}

/* Logo */
.brand {
  display: inline-flex;
  align-items: center;
  line-height: 1;
  text-decoration: none;
  position: relative;
  z-index: 1;
}

.brand-logo {
  height: 44px;
  width: auto;
  display: block;
}

/* Direita */
.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.header-login {
  display: none;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
  padding: 10px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: color var(--transition), border-color var(--transition);
}

.header-login:hover { color: var(--text-1); border-color: var(--text-1); }

@media (min-width: 640px) {
  .header-login { display: inline-flex; }
}

/* CTA de conversão sempre visível */
.header-cta {
  padding: 11px 18px;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: none;
}

.header-cta:hover { box-shadow: none; }

@media (max-width: 380px) {
  .header-right { gap: 8px; }
  .header-cta { padding: 10px 14px; }
}

/* Botão MENU */
.menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border-radius: 50%;
  background: var(--text-1);
  border: 1px solid var(--text-1);
  color: #fff;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.menu-btn:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.menu-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.menu-btn-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.menu-btn-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.menu-btn-icon span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.35s var(--ease-out), width 0.35s var(--ease-out);
  transform-origin: center;
}

.menu-btn[aria-expanded="true"] .menu-btn-icon span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.menu-btn[aria-expanded="true"] .menu-btn-icon span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* === OVERLAY === */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 1100;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.7s var(--ease-out), visibility 0s linear 0.7s;
  visibility: hidden;
}

.nav-overlay[hidden] { display: block; }

.nav-overlay.is-open {
  clip-path: inset(0 0 0 0);
  visibility: visible;
  transition: clip-path 0.7s var(--ease-out), visibility 0s;
}

.nav-overlay-bg {
  position: absolute;
  inset: 0;
  background: var(--bg-page);
}

.nav-overlay-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent);
}

/* A área rolável começa abaixo do cabeçalho: os links nunca passam por trás dele */
.nav-overlay-inner {
  position: absolute;
  top: calc(var(--header-h) + var(--card-gutter));
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px clamp(20px, 6vw, 96px) clamp(24px, 4vw, 48px);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.nav-primary {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.nav-big-link {
  --i: 0;
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 16px;
  font-size: min(clamp(2rem, 6.6vw, 5rem), 7.4vh);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: var(--text-1);
  text-decoration: none;
  padding-block: 0.06em;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out), color var(--transition);
}

.nav-big-link::before {
  content: '';
  width: 0.28em;
  height: 0.28em;
  border-radius: 50%;
  background: var(--accent);
  align-self: center;
  transform: scale(0);
  transition: transform 0.3s var(--ease-out);
}

.nav-big-link:hover::before,
.nav-big-link.active::before { transform: scale(1); }
.nav-big-link:hover { color: var(--accent); }
.nav-big-link.active { color: var(--text-1); }

.nav-overlay.is-open .nav-big-link {
  opacity: 1;
  transform: translateY(0);
  transition-delay: calc(0.15s + var(--i) * 55ms);
}

.nav-big-link:nth-child(1) { --i: 0; }
.nav-big-link:nth-child(2) { --i: 1; }
.nav-big-link:nth-child(3) { --i: 2; }
.nav-big-link:nth-child(4) { --i: 3; }
.nav-big-link:nth-child(5) { --i: 4; }
.nav-big-link:nth-child(6) { --i: 5; }
.nav-big-link:nth-child(7) { --i: 6; }
.nav-big-link:nth-child(8) { --i: 7; }
.nav-big-link:nth-child(9) { --i: 8; }

.nav-secondary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 32px;
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid var(--border);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

.nav-overlay.is-open .nav-secondary {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.6s;
}

.nav-secondary-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.nav-secondary-links a {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-2);
  transition: color var(--transition);
}

.nav-secondary-links a:hover { color: var(--accent); }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
}

.lang-switch-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  padding-inline: 10px 6px;
}

.lang-btn {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-2);
  padding: 7px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.lang-btn:hover { color: var(--text-1); }
.lang-btn.active { background: var(--text-1); color: #fff; }

/* Bandeiras: a ativa fica em destaque, as demais esmaecidas */
.lang-btn:has(.lang-flag) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
}

.lang-flag {
  display: block;
  width: 26px;
  height: auto;
  aspect-ratio: 7 / 5;
  border-radius: 3px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.12);
  opacity: 0.65;
  filter: saturate(0.75);
  transition: opacity var(--transition), filter var(--transition), transform var(--transition);
}

.lang-btn:hover .lang-flag { opacity: 0.85; filter: none; }
.lang-btn.active .lang-flag { opacity: 1; filter: none; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.35); }
.lang-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.nav-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: #fff;
  background: var(--whatsapp);
  padding: 11px 20px;
  border-radius: var(--radius-full);
  transition: transform var(--transition), box-shadow var(--transition);
}

.nav-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(37,211,102,0.35); }
.nav-whatsapp .ti { font-size: 1.15rem; }

body.menu-open { overflow: hidden; }

/* === WHATSAPP FLUTUANTE === */
.wa-float {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 900;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  box-shadow: 0 10px 28px rgba(37,211,102,0.35);
  transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition);
}

.wa-float:hover { transform: translateY(-3px) scale(1.04); box-shadow: 0 14px 32px rgba(37,211,102,0.45); }
body.menu-open .wa-float { opacity: 0; pointer-events: none; }

@media (max-width: 640px) {
  .brand-logo { height: 36px; }
  .wa-float { left: 14px; bottom: 14px; width: 50px; height: 50px; font-size: 1.5rem; }
}