/* layout.css — navbar, footer, containers de seção, estrutura de página interna */

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(241, 243, 248, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}

.navbar__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 84px;
}

.navbar__brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-right: auto;
}

.navbar__brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.navbar__brand-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.navbar__link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--color-ink);
  position: relative;
  padding-block: 4px;
}

.navbar__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

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

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
}

.navbar__toggle span {
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Menu mobile */
.menu-mobile {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.menu-mobile.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.menu-mobile__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.menu-mobile__link {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--color-white);
  font-weight: 600;
}

.menu-mobile__link.is-active { color: var(--color-accent); }

/* Footer */
.footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.7);
  padding-block: var(--section-padding-md) 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer__col { display: flex; flex-direction: column; gap: 10px; }

.footer__col a, .footer__text {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.7);
}

.footer__col a:hover { color: var(--color-accent); }

.footer__col-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.footer__brand-mark { color: var(--color-white); }

.footer__tagline {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
  margin-top: 8px;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 18px;
}

.footer__social a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.75);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.footer__social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: 12px;
}

.footer__signature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
}

.footer__signature:hover { color: var(--color-accent); }

.footer__signature-badge {
  background: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  display: inline-flex;
  align-items: center;
}