/* ============================================================
   GAIA — Componentes reutilizáveis
   Cada componente é uma classe única, sem dependências.
   ============================================================ */

/* ---- Container ---- */
.gaia-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--gaia-space-6);
}

/* ---- Header institucional ---- */
.gaia-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--gaia-space-4) var(--gaia-space-6);
  background: var(--gaia-card);
  border-bottom: 1px solid var(--gaia-border);
  position: sticky; top: 0; z-index: var(--gaia-z-overlay);
}
.gaia-header__brand {
  display: flex; align-items: center; gap: var(--gaia-space-3);
  font-weight: 700; font-size: var(--gaia-text-xl);
  color: var(--gaia-green-900);
}
.gaia-header__brand-mark {
  width: 36px; height: 36px;
  background: var(--gaia-green-700);
  border-radius: var(--gaia-radius-pill);
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: var(--gaia-text-lg);
}
.gaia-header__nav {
  display: flex; gap: var(--gaia-space-6);
  list-style: none; padding: 0; margin: 0;
}
.gaia-header__nav a {
  color: var(--gaia-ink-700);
  font-weight: 500;
  font-size: var(--gaia-text-sm);
}
.gaia-header__nav a:hover { color: var(--gaia-green-700); }

/* ---- Botões ---- */
.gaia-btn {
  display: inline-flex; align-items: center; gap: var(--gaia-space-2);
  padding: var(--gaia-space-3) var(--gaia-space-6);
  font-size: var(--gaia-text-sm);
  font-weight: 600;
  border-radius: var(--gaia-radius-md);
  border: 1px solid transparent;
  transition: all 150ms ease;
}
.gaia-btn--primary {
  background: var(--gaia-green-700);
  color: white;
}
.gaia-btn--primary:hover { background: var(--gaia-green-900); }
.gaia-btn--secondary {
  background: var(--gaia-card);
  color: var(--gaia-ink-700);
  border-color: var(--gaia-border);
}
.gaia-btn--secondary:hover { border-color: var(--gaia-green-500); color: var(--gaia-green-700); }

/* ---- Card ---- */
.gaia-card {
  background: var(--gaia-card);
  border: 1px solid var(--gaia-border);
  border-radius: var(--gaia-radius-lg);
  padding: var(--gaia-space-6);
  box-shadow: var(--gaia-shadow-sm);
}

/* ---- Hero ---- */
.gaia-hero {
  padding: var(--gaia-space-16) 0 var(--gaia-space-12);
  background: linear-gradient(135deg, var(--gaia-green-100) 0%, var(--gaia-water-100) 100%);
  border-bottom: 1px solid var(--gaia-border);
}
.gaia-hero__title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--gaia-green-900);
  margin-bottom: var(--gaia-space-6);
}
.gaia-hero__title em { color: var(--gaia-green-700); font-style: normal; }
.gaia-hero__lead {
  font-size: var(--gaia-text-xl);
  line-height: var(--gaia-line-loose);
  color: var(--gaia-ink-700);
  max-width: 720px;
}
.gaia-hero__cta {
  display: flex; gap: var(--gaia-space-4); margin-top: var(--gaia-space-8); flex-wrap: wrap;
}

/* ---- Grid de features ---- */
.gaia-grid {
  display: grid;
  gap: var(--gaia-space-6);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.gaia-feature__icon {
  width: 48px; height: 48px;
  border-radius: var(--gaia-radius-md);
  background: var(--gaia-green-100);
  color: var(--gaia-green-700);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--gaia-text-2xl);
  margin-bottom: var(--gaia-space-4);
}
.gaia-feature__title {
  font-size: var(--gaia-text-lg);
  font-weight: 600;
  margin-bottom: var(--gaia-space-2);
}
.gaia-feature__desc {
  font-size: var(--gaia-text-sm);
  color: var(--gaia-ink-500);
}

/* ---- Tier badge (política de dados sensíveis) ---- */
.gaia-tier {
  display: inline-flex; align-items: center; gap: var(--gaia-space-2);
  padding: var(--gaia-space-1) var(--gaia-space-3);
  border-radius: var(--gaia-radius-pill);
  font-size: var(--gaia-text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.gaia-tier--public {
  background: rgba(5, 150, 105, 0.1);
  color: var(--gaia-success-500);
}
.gaia-tier--aggregated {
  background: rgba(217, 119, 6, 0.1);
  color: var(--gaia-warn-500);
}
.gaia-tier--restricted {
  background: rgba(185, 28, 28, 0.1);
  color: var(--gaia-danger-500);
}
.gaia-tier__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: currentColor;
}

/* ---- Footer ---- */
.gaia-footer {
  background: var(--gaia-green-900);
  color: var(--gaia-green-100);
  padding: var(--gaia-space-12) 0 var(--gaia-space-6);
}
.gaia-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--gaia-space-8);
  margin-bottom: var(--gaia-space-8);
}
.gaia-footer h4 {
  color: white;
  font-size: var(--gaia-text-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--gaia-space-4);
}
.gaia-footer ul { list-style: none; padding: 0; margin: 0; }
.gaia-footer ul li { margin-bottom: var(--gaia-space-2); }
.gaia-footer a { color: var(--gaia-green-100); font-size: var(--gaia-text-sm); }
.gaia-footer a:hover { color: white; }
.gaia-footer__legal {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--gaia-space-6);
  font-size: var(--gaia-text-xs);
  color: rgba(232, 241, 232, 0.6);
}
@media (max-width: 720px) {
  .gaia-footer__grid { grid-template-columns: 1fr 1fr; }
  .gaia-header__nav { display: none; }
}