@import url('https://fonts.googleapis.com/css2?family=Source+Sans+3:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400;1,8..60,600&display=swap');

:root {
  --azul-rio: #1d3b53;
  --azul-rio-escuro: #13283a;
  --ocre: #a86f25;
  --ocre-escuro: #835418;
  --ouro-claro: #c9a65b;
  --areia: #f3ead8;
  --papel: #faf6ee;
  --texto: #2b2620;
  --texto-suave: #5a5248;
  --borda: #dccdb4;
  --verificado-bg: #e6f2ec;
  --verificado-txt: #17593b;
  --secundaria-bg: #fef3d6;
  --secundaria-txt: #7c510a;
  --aconfirmar-bg: #fbe6e3;
  --aconfirmar-txt: #8c2619;
}

body.high-contrast {
  --azul-rio: #000000;
  --azul-rio-escuro: #000000;
  --ocre: #ffd700;
  --ocre-escuro: #ffea70;
  --ouro-claro: #ffd700;
  --areia: #000000;
  --papel: #0b0b0b;
  --texto: #ffffff;
  --texto-suave: #e5e5e5;
  --borda: #ffffff;
  background-color: #000000 !important;
  color: #ffffff !important;
}

body.high-contrast .bg-white,
body.high-contrast .surface-card,
body.high-contrast header,
body.high-contrast footer {
  background-color: #0b0b0b !important;
  color: #ffffff !important;
  border-color: #ffffff !important;
}

body.high-contrast a,
body.high-contrast button {
  color: #ffd700 !important;
}

html {
  scroll-behavior: smooth;
  font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--areia);
  color: var(--texto);
}

body {
  background-color: var(--areia);
  color: var(--texto);
  line-height: 1.65;
}

.font-serif-museu {
  font-family: 'Source Serif 4', Georgia, Cambria, serif;
}

.font-sans-museu {
  font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Skip link for keyboard accessibility (Rule 4 & Rule 10) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 100;
  background: var(--azul-rio);
  color: #ffffff;
  padding: 0.6rem 1.1rem;
  border-radius: 0.375rem;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 0.75rem;
  outline: 3px solid var(--ouro-claro);
}

/* Keyboard focus visibility (WCAG 2.1 AA) */
:focus-visible {
  outline: 3px solid var(--ocre);
  outline-offset: 2px;
}

/* Active navigation button */
.nav-btn-active {
  background-color: var(--azul-rio) !important;
  color: #ffffff !important;
  font-weight: 600;
}

body.high-contrast .nav-btn-active {
  background-color: #ffd700 !important;
  color: #000000 !important;
}

/* Verification Badges (Rule 3.2) */
.badge-verificado {
  background-color: var(--verificado-bg);
  color: var(--verificado-txt);
  border: 1px solid #b5dac6;
}

.badge-fonte-secundaria {
  background-color: var(--secundaria-bg);
  color: var(--secundaria-txt);
  border: 1px solid #f0d28c;
}

.badge-a-confirmar {
  background-color: var(--aconfirmar-bg);
  color: var(--aconfirmar-txt);
  border: 1px solid #ebbab3;
}

/* Hero backdrop */
.hero-ims-backdrop {
  background:
    linear-gradient(180deg, rgba(29, 59, 83, 0.84) 0%, rgba(29, 59, 83, 0.72) 50%, rgba(29, 59, 83, 0.94) 100%),
    url('assets/img/01-lapa-1868-riedel.jpg') center 38% / cover no-repeat;
}

/* Leaflet map container */
#leaflet-map-container {
  width: 100%;
  height: 540px;
  border-radius: 0.75rem;
  border: 1px solid var(--borda);
  z-index: 10;
}

/* Hide scrollbars on horizontal navs */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}