/* === Reset básico e acessibilidade === */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Liberation Sans', sans-serif; line-height: 1.6; color: #1f2937; background: #f8fafc; }
img { max-width: 100%; height: auto; }
a { color: #0ea5e9; text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }
.skip-link { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { position: static; width: auto; height: auto; padding: .5rem 1rem; background: #f59e0b; color: #111827; }

/* === Layout === */
.site-header { background: #ffffff; border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-index: 50; }
.site-header .brand { display: flex; align-items: center; gap: 1rem; padding: .75rem 1rem; }
.logo { width: 56px; height: 56px; }
.site-title { margin: 0; font-size: 1.5rem; }
.site-subtitle { margin: 0; color: #6b7280; font-size: .95rem; }

.menu-principal { border-top: 1px solid #f1f5f9; background: #f8fafc; }
.menu-principal ul { margin: 0; padding: .5rem 1rem; list-style: none; display: flex; gap: 1rem; flex-wrap: wrap; }
.menu-principal a { padding: .4rem .6rem; border-radius: .375rem; }
.menu-principal a:hover { background: #e0f2fe; text-decoration: none; }

.layout { display: grid; grid-template-columns: 1fr; gap: 1rem; padding: 1rem; max-width: 1200px; margin: 0 auto; }
.content { min-width: 0; }
.sidebar { background: #ffffff; border: 1px solid #e5e7eb; border-radius: .5rem; padding: 1rem; }

@media (min-width: 992px) {
  .layout { grid-template-columns: minmax(0,1fr) 300px; align-items: start; }
}

.card { background: #ffffff; border: 1px solid #e5e7eb; border-radius: .75rem; padding: 1rem; margin-bottom: 1rem; }
.card-sub { background: #f9fafb; border: 1px dashed #e5e7eb; border-radius: .5rem; padding: 1rem; }

.grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 700px) { .grid { grid-template-columns: 1fr 1fr; } }

.btn { display: inline-block; padding: .6rem .9rem; border-radius: .5rem; font-weight: 600; border: 1px solid #0ea5e9; color: #0c4a6e; background: #e0f2fe; }
.btn:hover { background: #bae6fd; text-decoration: none; }
.btn-primary { background: #0ea5e9; color: #fff; border-color: #0284c7; }
.btn-primary:hover { background: #0284c7; }
.btn-secondary { background: #f3f4f6; color: #111827; border-color: #d1d5db; }
.btn-secondary:hover { background: #e5e7eb; }
.btn.full { display: block; text-align: center; }

.site-footer { text-align: center; color: #6b7280; padding: 2rem 1rem; }
.site-footer .small { font-size: .9rem; }

.mapa iframe { width: 100%; min-height: 300px; border: 0; }