:root {
  --escuro: #0f1b2d;
  --azul: #1f4e79;
  --azul-claro: #e8f0f8;
  --destaque: #f39c12;
  --texto: #1c2833;
  --cinza: #5d6d7e;
  --borda: #d6dde5;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, Arial, sans-serif;
  background: #f4f7fa;
  color: var(--texto);
  line-height: 1.65;
}

/* Foco visível para quem navega pelo teclado */
:focus-visible { outline: 3px solid var(--destaque); outline-offset: 2px; }
.opcao:focus-visible, .proxima:focus-visible { outline-color: var(--azul); }

/* Menu */
.menu {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap;
  gap: 8px; padding: 12px 24px;
  background: var(--escuro);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}
.marca { color: white; font-weight: 700; text-decoration: none; font-size: 1.1rem; }
.marca-icone { font-size: 1.5rem; vertical-align: middle; }
.links a {
  color: #c5d3e3; text-decoration: none; margin-left: 16px; font-size: 0.95rem;
  padding-bottom: 2px; border-bottom: 2px solid transparent;
}
.links a:hover { color: white; border-color: var(--destaque); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--escuro), var(--azul));
  color: white; padding: 70px 24px 50px; text-align: center;
}
.hero-texto { max-width: 720px; margin: auto; }
.etiqueta {
  display: inline-block; background: rgba(243, 156, 18, 0.2); color: var(--destaque);
  padding: 4px 14px; border-radius: 20px; font-size: 0.85rem; letter-spacing: 1px;
  text-transform: uppercase;
}
.hero h1 { font-size: clamp(2.2rem, 6vw, 3.6rem); margin: 16px 0 12px; line-height: 1.15; }
.hero p { font-size: 1.15rem; color: #d5e1ee; }
.botao {
  display: inline-block; margin-top: 12px; padding: 12px 28px; border-radius: 8px;
  background: var(--destaque); color: var(--escuro); font-weight: 700; text-decoration: none;
  transition: transform 0.15s;
}
.botao:hover { transform: translateY(-2px); }

.hero-numeros {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px;
  max-width: 760px; margin: 44px auto 0;
}
.hero-numeros div {
  background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px; padding: 16px 26px;
}
.hero-numeros strong { display: block; font-size: 1.8rem; color: var(--destaque); }
.hero-numeros span { font-size: 0.9rem; color: #c5d3e3; }

/* Conjuntos por tema */
.tema { margin-bottom: 40px; }
.tema-cabeca {
  display: flex; align-items: center; flex-wrap: wrap; gap: 14px 18px; margin-bottom: 18px;
  padding: 16px 20px; border-radius: 14px; color: white;
  background: linear-gradient(135deg, var(--escuro), var(--azul));
}
.tema-num {
  flex: none; width: 46px; height: 46px; border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-size: 1.4rem; font-weight: 800; background: var(--destaque); color: var(--escuro);
}
.tema-texto { flex: 1 1 260px; }
.tema-titulo { margin: 0; font-size: 1.35rem; font-weight: 800; }
.tema-desc { margin: 2px 0 0; font-size: 0.95rem; color: #d5e1ee; }
.tema-links { display: flex; flex-wrap: wrap; gap: 8px; }
.tema-links a {
  padding: 5px 14px; border-radius: 20px; font-size: 0.9rem; text-decoration: none;
  color: white; border: 1px solid rgba(255, 255, 255, 0.35); background: rgba(255, 255, 255, 0.1);
}
.tema-links a:hover { background: var(--destaque); color: var(--escuro); border-color: var(--destaque); }

/* Conteúdo */
main { max-width: 1000px; margin: auto; padding: 32px 16px; }

section {
  background: white; border: 1px solid var(--borda); border-radius: 14px;
  padding: 28px; margin-bottom: 28px;
  box-shadow: 0 2px 8px rgba(15, 27, 45, 0.05);
}
h2 {
  margin: 0 0 14px; color: var(--escuro); font-size: 1.6rem;
  padding-bottom: 10px; border-bottom: 3px solid var(--destaque); display: inline-block;
}

.duas-colunas { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
@media (max-width: 760px) { .duas-colunas { grid-template-columns: 1fr; } }

/* Botão do menu (só no celular) */
.menu-botao {
  display: none; background: none; border: 1px solid #3b4d66; border-radius: 8px;
  color: white; font-size: 1.3rem; padding: 4px 12px; cursor: pointer;
}
@media (max-width: 760px) {
  .menu-botao { display: block; }
  .links { display: none; width: 100%; flex-direction: column; }
  .links.aberto { display: flex; }
  .links a { margin: 0; padding: 10px 0; border-bottom: 1px solid #22344d; }
}

/* Supercélula e ar quente/frio */
.passos { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin: 18px 0; }
.passo { background: var(--azul-claro); border-left: 6px solid var(--azul); border-radius: 8px; padding: 14px 16px; }
.passo span {
  display: inline-block; width: 28px; height: 28px; line-height: 28px; text-align: center;
  border-radius: 50%; background: var(--azul); color: white; font-weight: 700;
}
.passo h3 { margin: 8px 0 4px; font-size: 1.05rem; color: var(--escuro); }
.passo p { margin: 0; font-size: 0.95rem; }
.ar { border-radius: 10px; padding: 16px 18px; }
.ar h3 { margin: 0 0 6px; color: var(--escuro); }
.ar p { margin: 0; }
.ar-quente { background: #fdecea; border-left: 6px solid #e74c3c; }
.ar-frio { background: #e6f3fb; border-left: 6px solid #3498db; }
.sequencia { padding-left: 22px; }
.sequencia li { margin-bottom: 8px; }

/* Tornados mais fortes por região */
.regioes { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-top: 16px; }
.regiao { background: var(--azul-claro); border-top: 5px solid var(--destaque); border-radius: 10px; padding: 14px 16px; }
.regiao-nome { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; color: var(--azul); }
.regiao h3 { margin: 4px 0 2px; font-size: 1.05rem; color: var(--escuro); }
.regiao-meta { margin: 0 0 6px; font-size: 0.9rem; color: var(--cinza); }
.regiao-meta strong { color: var(--escuro); }
.regiao p { margin: 0; font-size: 0.95rem; }
.regiao p + p { margin-top: 4px; }

/* Alertas da Defesa Civil */
.alertas { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin: 16px 0; }
.alerta { background: #f8fafc; border: 1px solid var(--borda); border-left: 8px solid var(--cinza); border-radius: 10px; padding: 14px 16px; }
.alerta-topo { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.alerta-selo {
  flex: none; width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-size: 1.5rem; font-weight: 700;
}
.alerta-selo.triangulo { width: 52px; height: 47px; border-radius: 0; background: none; }
.alerta h4 { margin: 0; color: var(--escuro); font-size: 1.05rem; }
.alerta-risco { font-size: 0.9rem; color: var(--cinza); }
.alerta p { margin: 4px 0; font-size: 0.95rem; }

.figura { margin: 0; }
.figura img { width: 100%; border-radius: 10px; display: block; }
figcaption { font-size: 0.85rem; color: var(--cinza); margin-top: 6px; }

/* Categorias */
.cards { display: flex; flex-wrap: wrap; gap: 10px; }
.card {
  flex: 1 1 110px; border: none; border-radius: 10px; padding: 16px 10px;
  color: white; font-size: 1.15rem; font-weight: 700; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.card:hover { transform: translateY(-3px); }
.card.ativo { box-shadow: 0 0 0 3px var(--escuro); }

.detalhe {
  margin-top: 18px; padding: 18px 20px; background: var(--azul-claro);
  border-left: 6px solid var(--azul); border-radius: 8px;
}
.detalhe h3 { margin: 0 0 8px; }
.detalhe p { margin: 4px 0; }

/* Simulador */
.subtitulo { margin: 28px 0 6px; font-size: 1.25rem; color: var(--escuro); }
.sim-canvas {
  display: block; width: 100%; height: auto; border-radius: 10px; margin-top: 10px;
  border: 1px solid var(--borda); background: #b9c6d3;
}

/* Radar do tempo */
.radar-busca { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 6px; }
.radar-busca input {
  flex: 1 1 220px; padding: 11px 14px; font-size: 1rem;
  border: 2px solid var(--borda); border-radius: 8px;
}
.radar-busca .proxima { margin-top: 0; }
.radar-status { color: var(--cinza); margin: 6px 0; min-height: 1.6em; }
.radar-abas { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.radar-aba {
  padding: 8px 16px; border: 2px solid var(--borda); border-radius: 20px;
  background: white; cursor: pointer; font-size: 0.95rem;
}
.radar-aba.ativo { background: var(--azul); border-color: var(--azul); color: white; }
.radar-mapa { height: 420px; border-radius: 10px; border: 1px solid var(--borda); z-index: 0; }
.radar-controle { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.radar-controle .proxima { margin-top: 0; min-width: 48px; }
.radar-controle input { flex: 1 1 200px; }
.radar-legenda { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 0.85rem; color: var(--cinza); }
.radar-barra { flex: 0 1 260px; height: 10px; border-radius: 5px; }
.radar-resumo { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.radar-dia { background: var(--azul-claro); border-radius: 10px; padding: 14px 16px; border-left: 6px solid var(--azul); }
.radar-dia h4 { margin: 0 0 6px; }
.radar-dia p { margin: 3px 0; font-size: 0.95rem; }
.radar-aviso { font-size: 0.85rem; color: var(--cinza); margin-top: 16px; }
.seta-vento { font-size: 18px; line-height: 18px; text-align: center; color: #fff; text-shadow: 0 0 3px #000, 0 0 3px #000; }

/* Linha do tempo */
#linha-do-tempo { border-left: 3px solid var(--borda); margin-left: 8px; }
.evento { position: relative; padding: 0 0 22px 24px; }
.evento::before {
  content: ""; position: absolute; left: -9px; top: 6px; width: 15px; height: 15px;
  background: var(--destaque); border: 3px solid white; border-radius: 50%;
  box-shadow: 0 0 0 2px var(--destaque);
}
.evento .ano { font-weight: 800; color: var(--azul); font-size: 1.15rem; }
.evento p { margin: 2px 0 0; color: #34495e; }

/* Galeria */
.galeria-filtros { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 18px; }
.chip {
  padding: 8px 16px; border: 2px solid var(--borda); border-radius: 20px; background: white;
  cursor: pointer; font-size: 0.92rem; color: var(--texto); transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.chip span { opacity: 0.6; font-size: 0.8rem; margin-left: 4px; }
.chip:hover { border-color: var(--azul); }
.chip.ativo { background: var(--azul); border-color: var(--azul); color: white; }

.carrossel-caixa { position: relative; }
.carrossel {
  --slide: clamp(250px, 72vw, 680px);
  position: relative; display: flex; gap: 16px; overflow-x: auto; padding: 14px calc(50% - var(--slide) / 2);
  scroll-snap-type: x mandatory; scroll-behavior: smooth; scrollbar-width: none; cursor: grab; outline-offset: 4px;
  overscroll-behavior-x: contain;
}
.carrossel::-webkit-scrollbar { display: none; }
.carrossel.arrastando { scroll-snap-type: none; scroll-behavior: auto; cursor: grabbing; user-select: none; }
.slide {
  position: relative; flex: 0 0 var(--slide); margin: 0; border-radius: 16px; overflow: hidden; background: #0f1b2d;
  scroll-snap-align: center; transform: scale(0.88); opacity: 0.45; cursor: pointer;
  transition: transform 0.45s ease, opacity 0.45s ease, box-shadow 0.45s ease;
}
.slide.ativo { transform: scale(1); opacity: 1; cursor: zoom-in; box-shadow: 0 14px 34px rgba(15, 27, 45, 0.28); }
.slide img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.slide figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 48px 18px 14px; color: white; font-size: 0.98rem;
  background: linear-gradient(transparent, rgba(5, 10, 20, 0.88));
}
.slide figcaption small { display: block; margin-top: 3px; font-size: 0.75rem; opacity: 0.75; }
.slide.entrando { animation: slide-entra 0.5s ease both; }
@keyframes slide-entra { from { opacity: 0; translate: 40px 0; } }

.carrossel-seta {
  position: absolute; top: 50%; z-index: 2; width: 46px; height: 46px; margin-top: -23px; border: none; border-radius: 50%;
  background: rgba(255, 255, 255, 0.92); color: var(--escuro); font-size: 1.8rem; line-height: 1; cursor: pointer;
  box-shadow: 0 4px 14px rgba(15, 27, 45, 0.3); transition: transform 0.15s, opacity 0.2s;
}
.carrossel-seta:hover:not(:disabled) { transform: scale(1.1); }
.carrossel-seta:disabled { opacity: 0.3; cursor: default; }
.carrossel-seta.anterior { left: 4px; }
.carrossel-seta.seguinte { right: 4px; }

.car-progresso { height: 4px; margin: 6px 0 0; background: var(--borda); border-radius: 2px; overflow: hidden; }
#car-barra { height: 100%; width: 0; background: var(--destaque); transition: width 0.35s ease; }
.car-contador { margin: 8px 0 10px; text-align: center; color: var(--cinza); font-size: 0.9rem; }
.miniaturas { display: flex; gap: 8px; overflow-x: auto; padding: 4px; scrollbar-width: thin; position: relative; }
.miniatura {
  flex: 0 0 auto; width: 84px; height: 56px; padding: 0; border: 3px solid transparent; border-radius: 8px;
  overflow: hidden; cursor: pointer; opacity: 0.6; background: #0f1b2d; transition: opacity 0.2s, border-color 0.2s, transform 0.2s;
}
.miniatura img { width: 100%; height: 100%; object-fit: cover; display: block; }
.miniatura:hover { opacity: 1; }
.miniatura.ativo { opacity: 1; border-color: var(--destaque); transform: translateY(-2px); }

/* Visualizador (popup) */
.visualizador {
  width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0; border: none;
  background: transparent; color: white; overflow: hidden;
}
.visualizador[open] { display: flex; align-items: center; justify-content: center; animation: vis-abre 0.3s ease; }
.visualizador::backdrop { background: rgba(5, 10, 20, 0.92); backdrop-filter: blur(6px); }
@keyframes vis-abre { from { opacity: 0; scale: 0.96; } }
.vis-figura { margin: 0; max-width: min(92vw, 1100px); text-align: center; touch-action: pan-y; }
.vis-img { max-width: 100%; max-height: 74vh; border-radius: 10px; background: #0f1b2d; user-select: none; }
.vis-img.vem-direita { animation: vis-direita 0.35s ease; }
.vis-img.vem-esquerda { animation: vis-esquerda 0.35s ease; }
@keyframes vis-direita { from { opacity: 0; translate: 50px 0; } }
@keyframes vis-esquerda { from { opacity: 0; translate: -50px 0; } }
.vis-figura figcaption { margin-top: 12px; color: white; font-size: 1rem; }
.vis-figura figcaption small { display: block; margin-top: 4px; font-size: 0.8rem; opacity: 0.7; }
.vis-contador { display: block; margin-top: 6px; font-size: 0.85rem; opacity: 0.8; }
.vis-fechar, .vis-seta {
  position: absolute; border: none; border-radius: 50%; background: rgba(255, 255, 255, 0.14); color: white;
  cursor: pointer; transition: background 0.2s, transform 0.15s;
}
.vis-fechar:hover, .vis-seta:hover:not(:disabled) { background: rgba(255, 255, 255, 0.3); transform: scale(1.08); }
.vis-fechar { top: 16px; right: 16px; width: 44px; height: 44px; font-size: 1.2rem; }
.vis-seta { top: 50%; width: 52px; height: 52px; margin-top: -26px; font-size: 2rem; line-height: 1; }
.vis-seta:disabled { opacity: 0.25; cursor: default; }
.vis-ant { left: 16px; }
.vis-prox { right: 16px; }
.visualizador :focus-visible { outline-color: white; }
@media (max-width: 600px) {
  .vis-seta { top: auto; bottom: 18px; margin: 0; }
  .vis-ant { left: 18px; }
  .vis-prox { right: 18px; }
  .carrossel-seta { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .slide, .slide.entrando, .visualizador[open], .vis-img { animation: none !important; }
  .slide { transform: none; }
  .carrossel { scroll-behavior: auto; }
}

/* Quiz */
.opcao {
  display: block; width: 100%; margin: 8px 0; padding: 13px 16px; font-size: 1rem;
  font-family: inherit; text-align: left; border: 2px solid var(--borda); border-radius: 10px;
  background: white; cursor: pointer; transition: background 0.15s;
}
.opcao:hover:not(:disabled) { background: var(--azul-claro); border-color: var(--azul); }
.opcao.certa { background: #d4efdf; border-color: #27ae60; }
.opcao.errada { background: #fadbd8; border-color: #e74c3c; }
.proxima {
  margin-top: 12px; padding: 11px 22px; border: none; border-radius: 8px;
  background: var(--azul); color: white; font-family: inherit; font-size: 1rem; font-weight: 600; cursor: pointer;
}
.proxima:hover { background: var(--escuro); }

/* Curiosidades */
.curiosidades { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.curiosidades li {
  display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px;
  background: var(--azul-claro); border-radius: 10px;
}
.curiosidades li span { font-size: 1.5rem; }
.curiosidades li p { margin: 0; }

footer { background: var(--escuro); color: #aab7c4; text-align: center; padding: 24px; }
footer p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}