/* ============================================================
   layout.css — Header/nav, footer, grids das seções
   ============================================================ */

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  transition: background var(--dur-mid) var(--ease-out),
    box-shadow var(--dur-mid) var(--ease-out), border-color var(--dur-mid) var(--ease-out);
  border-bottom: 1px solid transparent;
}

/* Sem backdrop-filter aqui: ele criaria um "containing block" que quebra
   o position:fixed do menu mobile (filho do header). */
.site-header.scrolled {
  background: rgba(10, 10, 10, 0.92);
  border-bottom-color: var(--border-dark);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  min-height: 72px;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-md);
  letter-spacing: 0.02em;
  color: #fff;
}

.nav__logo img {
  height: 40px;
  width: auto;
  border-radius: 6px;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

.nav__link {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: rgba(245, 244, 242, 0.82);
  position: relative;
  padding-block: var(--sp-2);
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-mid) var(--ease-out);
}

.nav__link:hover,
.nav__link.is-active {
  color: #fff;
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

/* Botão dentro do menu é só para o mobile; escondido no desktop */
.nav__menu > .btn {
  display: none;
}

/* Hamburger */
.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: var(--r-full);
  transition: transform var(--dur-mid) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}

.nav__toggle[aria-expanded='true'] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded='true'] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded='true'] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--graphite-950);
  color: var(--text-on-dark);
  padding-block: var(--sp-8) var(--sp-6);
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--sp-7);
}

.footer-brand__logo {
  height: 56px;
  width: auto;
  margin-bottom: var(--sp-4);
  border-radius: 8px;
}

.footer-brand p {
  color: var(--text-on-dark-muted);
  font-size: var(--fs-sm);
  max-width: 34ch;
}

.footer-col h3 {
  font-size: var(--fs-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--sp-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer-col a,
.footer-col li {
  color: var(--text-on-dark-muted);
  font-size: var(--fs-sm);
  transition: color var(--dur-fast) var(--ease-out);
}

.footer-col a:hover {
  color: #fff;
}

.footer-contact-item {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  color: var(--gold);
  margin-top: 2px;
}

.footer-social {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border-dark);
  border-radius: var(--r-full);
  color: var(--text-on-dark-muted);
  transition: color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}

.footer-social a:hover {
  color: #0a0a0a;
  background: var(--gold);
  border-color: var(--gold);
}

.footer-social svg {
  width: 20px;
  height: 20px;
}

.footer-bottom {
  margin-top: var(--sp-7);
  border-top: 1px solid var(--border-dark);
}

.footer-bottom__inner {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
  padding-block: var(--sp-5);
  font-size: var(--fs-xs);
  color: var(--text-on-dark-muted);
}

.footer-admin-link {
  margin-top: var(--sp-4);
}

/* ---------- Responsivo: nav ---------- */
@media (max-width: 900px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links,
  .nav__actions .btn {
    display: none;
  }

  .nav__menu {
    position: fixed;
    inset: 72px 0 0 0;
    z-index: var(--z-menu);
    display: flex;
    flex-direction: column;
    gap: var(--sp-6);
    padding: var(--sp-7) var(--gutter);
    background: var(--graphite-950);
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease-out);
    visibility: hidden;
  }

  .nav__menu.open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav__menu .nav__links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-5);
  }

  .nav__menu .nav__link {
    font-size: var(--fs-lg);
  }

  .nav__menu .btn {
    display: inline-flex;
    align-self: flex-start;
    margin-top: var(--sp-4);
  }
}

@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
}