/* ============================================================
   NAVIGATION — topbar, header, menu móvel
   ============================================================ */

/* O topbar e o header usam um container ligeiramente mais largo do que o
   conteúdo (--header-container): dá folga ao conjunto logótipo + menu + CTA
   e evita o aspeto comprimido em ecrãs largos. */
.topbar .container, .header .container { max-width: var(--header-container); }

/* --- Topbar --- */
.topbar { background: var(--color-brand-deep); color: rgba(255,255,255,0.72); font-size: var(--fs-sm); }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); min-height: 44px; }
.topbar__list { display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }
.topbar__item { display: inline-flex; align-items: center; gap: var(--space-2); }
.topbar__item svg { width: 15px; height: 15px; color: var(--color-accent-light); flex: none; }
.topbar__item a:hover { color: #fff; }
.topbar__cta { display: inline-flex; align-items: center; gap: var(--space-2); font-weight: 600; color: var(--color-accent-light); }
.topbar__cta:hover { color: #fff; }
.topbar__cta svg { width: 15px; height: 15px; flex: none; }
@media (max-width: 860px) { .topbar { display: none; } }

/* --- Header --- */
.header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.94); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); transition: box-shadow var(--t-base); }
.header.is-stuck { box-shadow: var(--shadow); }
.header__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-h); gap: var(--space-8); }

/* Logótipo: imagem + designação */
.header__logo { display: inline-flex; align-items: center; gap: var(--space-4); flex: none; }
.header__logo img { height: 54px; width: auto; }
.header__logo-text { display: flex; flex-direction: column; line-height: 1.25; padding-left: var(--space-4); border-left: 1px solid var(--color-border); }
.header__logo-text strong { font-size: var(--fs-sm); font-weight: 600; color: var(--color-text-primary); letter-spacing: 0.01em; }
.header__logo-text span { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--color-text-muted); }
/* a designação por extenso só aparece quando há espaço real para ela */
@media (max-width: 1359px) { .header__logo-text { display: none; } }

/* --- Navegação principal --- */
.nav ul { display: flex; align-items: center; gap: var(--space-2); }
.nav__link {
  position: relative; display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-4); font-weight: 500; font-size: var(--fs-sm);
  color: var(--color-text-primary); border-radius: var(--radius-sm); transition: color var(--t-fast), background var(--t-fast);
}
.nav__link:hover { background: var(--color-brand-soft); }
.nav__link:hover, .nav__link[aria-current="page"] { color: var(--color-brand); }
.nav__link[aria-current="page"]::after {
  content: ""; position: absolute; left: var(--space-4); right: var(--space-4); bottom: 4px;
  height: 2px; background: var(--color-accent);
}
.nav__chip {
  font-size: 0.625rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  padding: 2px 7px; border-radius: 999px;
  background: var(--color-accent-soft); color: var(--color-accent);
}

/* --- Ações do header --- */
.header__actions { display: flex; align-items: center; gap: var(--space-4); }

/* --- Burger --- */
.burger { display: none; width: 46px; height: 46px; border-radius: var(--radius-sm); position: relative; }
.burger span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--color-text-primary); transition: transform var(--t-base), opacity var(--t-base); }
.burger span:nth-child(1) { top: 16px; } .burger span:nth-child(2) { top: 22px; } .burger span:nth-child(3) { top: 28px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* --- Menu móvel --- */
.mobile-menu {
  position: fixed; inset: 0 0 0 auto; width: min(360px, 88vw); z-index: 200;
  background: var(--color-brand-deep); color: #fff; padding: var(--space-8) var(--space-6);
  transform: translateX(100%); transition: transform var(--t-base); overflow-y: auto;
  display: flex; flex-direction: column; gap: var(--space-1);
}
.mobile-menu.is-open { transform: none; }
.mobile-menu__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--space-6); }
.mobile-menu__brand { font-family: var(--font-serif); font-style: italic; font-weight: 700; font-size: 1.75rem; color: #fff; letter-spacing: -0.02em; }
.mobile-menu__brand small { display: block; font-family: var(--font-base); font-style: normal; font-weight: 500; font-size: var(--fs-xs); letter-spacing: 0.16em; text-transform: uppercase; color: rgba(255,255,255,0.55); margin-top: 2px; }
.mobile-menu__close { width: 44px; height: 44px; color: #fff; display: grid; place-items: center; }
.mobile-menu__close svg { width: 22px; height: 22px; }
.mobile-menu > a { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-4) var(--space-3); font-size: var(--fs-lg); font-weight: 500; border-radius: var(--radius-sm); border-bottom: 1px solid var(--color-border-dark); }
.mobile-menu > a:hover { color: var(--color-accent-light); }
.mobile-menu .btn { margin-top: var(--space-6); }
.mobile-menu__contact { margin-top: var(--space-8); color: var(--color-text-on-dark); font-size: var(--fs-sm); }
.mobile-menu__contact p { color: #fff; font-weight: 600; margin-bottom: var(--space-2); }
.mobile-menu__contact a { border: 0; padding: 0; font-size: var(--fs-lg); font-weight: 600; color: var(--color-accent-light); }

.scrim { position: fixed; inset: 0; background: rgba(10, 27, 40, 0.55); z-index: 150; opacity: 0; visibility: hidden; transition: opacity var(--t-base), visibility var(--t-base); }
.scrim.is-open { opacity: 1; visibility: visible; }

/* Aperta primeiro os links, antes de recorrer ao menu móvel */
@media (max-width: 1200px) {
  .nav ul { gap: 2px; }
  .nav__link { padding-inline: var(--space-3); }
}
@media (max-width: 1080px) {
  .nav, .header__actions .btn { display: none; }
  .burger { display: block; }
  .header__inner { min-height: 72px; gap: var(--space-4); }
  .header__logo img { height: 46px; }
}