/* ==========================================================================
   Guia Digital de Peixes — identidade visual
   Rios, água doce e biodiversidade. Pensado primeiro para o celular do
   visitante que acabou de escanear o QR Code em frente ao aquário.
   ========================================================================== */

:root {
  --agua-900: #062730;
  --agua-800: #0a3b47;
  --agua-700: #0f5766;
  --agua-600: #10788c;
  --agua-500: #159aab;
  --agua-300: #6fc7cf;
  --agua-100: #dcf0f1;
  --agua-50: #eef8f8;

  --areia: #f7f4ed;
  --papel: #ffffff;
  --fundo: #f4f6f4;

  --texto: #12262c;
  --texto-suave: #4f6b71;
  --linha: #e2e6e2;

  --ambar: #e2922a;
  --ambar-forte: #a75f10;
  --ambar-fundo: #fdf3e0;
  --folha: #2f7d5f;

  --sombra-1: 0 1px 2px rgba(6, 39, 48, 0.06), 0 2px 8px rgba(6, 39, 48, 0.06);
  --sombra-2: 0 6px 24px rgba(6, 39, 48, 0.12);
  --raio: 16px;
  --raio-p: 10px;

  --fonte: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --fonte-cientifica: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;

  --largura: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --areia: #0d2a33;
    --papel: #0e2f39;
    --fundo: #08222a;
    --texto: #e8f3f3;
    --texto-suave: #9dbcc1;
    --linha: #1b4351;
    --agua-100: #14404d;
    --agua-50: #103642;
    --ambar-fundo: #33261243;
    --ambar-forte: #f0b458;
    --sombra-1: 0 1px 2px rgba(0, 0, 0, 0.3);
    --sombra-2: 0 6px 24px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font-family: var(--fonte);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--agua-700); }
@media (prefers-color-scheme: dark) { a { color: var(--agua-300); } }

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.4em; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); }
h2 { font-size: clamp(1.25rem, 4vw, 1.5rem); }
p { margin: 0 0 0.9em; }
p:last-child { margin-bottom: 0; }

.conteudo { width: 100%; max-width: var(--largura); margin: 0 auto; padding: 0 18px; }
.pular-para-conteudo {
  position: absolute; left: -9999px; top: 0; background: var(--agua-800); color: #fff;
  padding: 12px 16px; z-index: 100; border-radius: 0 0 var(--raio-p) 0;
}
.pular-para-conteudo:focus { left: 0; }

:focus-visible { outline: 3px solid var(--agua-500); outline-offset: 2px; border-radius: 4px; }

/* ------------------------------------------------------------ cabeçalho */
.cabecalho {
  background: linear-gradient(160deg, var(--agua-900), var(--agua-700));
  color: #fff;
  position: sticky; top: 0; z-index: 40;
  box-shadow: var(--sombra-1);
}
.cabecalho .conteudo {
  display: flex; align-items: center; gap: 14px;
  min-height: 60px; padding-top: 8px; padding-bottom: 8px;
}
.marca { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; }
.marca svg { width: 30px; height: 30px; flex: none; }
.marca span { display: block; font-size: 1.02rem; line-height: 1.15; }
.marca small { display: block; font-weight: 500; font-size: 0.72rem; opacity: 0.8; letter-spacing: 0.06em; text-transform: uppercase; }
.menu { margin-left: auto; display: flex; gap: 4px; }
.menu a {
  color: #eaf7f8; text-decoration: none; font-size: 0.92rem; font-weight: 600;
  padding: 8px 12px; border-radius: 999px;
}
.menu a:hover, .menu a[aria-current="page"] { background: rgba(255, 255, 255, 0.15); }
@media (max-width: 560px) {
  .menu a { padding: 8px 10px; font-size: 0.86rem; }
  .marca small { display: none; }
}

/* ------------------------------------------------------------ home */
.capa {
  background:
    radial-gradient(120% 90% at 85% 0%, rgba(21, 154, 171, 0.35), transparent 60%),
    linear-gradient(150deg, var(--agua-900), var(--agua-700) 70%, var(--agua-600));
  color: #fff;
  padding: 42px 0 54px;
  position: relative; overflow: hidden;
}
.capa::after {
  content: ""; position: absolute; inset: auto 0 -1px 0; height: 60px;
  background: radial-gradient(90% 100% at 50% 100%, var(--fundo) 60%, transparent 61%);
}
.capa h1 { max-width: 16ch; }
.capa p.linha-fina { font-size: 1.05rem; color: #cdeef1; max-width: 52ch; }
.selo {
  display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22); color: #eafcff;
  padding: 6px 14px; border-radius: 999px; font-size: 0.82rem; font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 18px;
}
.acoes-capa { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.botao {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--agua-600); color: #fff; text-decoration: none; font-weight: 650;
  padding: 13px 22px; border-radius: 999px; border: 0; font-size: 1rem; cursor: pointer;
  box-shadow: var(--sombra-1); transition: transform 0.12s ease, background 0.12s ease;
}
.botao:hover { background: var(--agua-500); transform: translateY(-1px); }
.botao.claro { background: #fff; color: var(--agua-800); }
.botao.claro:hover { background: var(--agua-50); }
.botao.contorno { background: transparent; color: inherit; border: 1.5px solid currentColor; box-shadow: none; }
.botao.contorno:hover { background: rgba(16, 120, 140, 0.1); }

.numeros { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 30px; }
.numeros div strong { display: block; font-size: 1.9rem; line-height: 1; }
.numeros div span { font-size: 0.85rem; color: #bfe6ea; }

.secao { padding: 40px 0; }
.secao > .conteudo > h2 { display: flex; align-items: center; gap: 10px; }
.subtitulo-secao { color: var(--texto-suave); margin-top: -6px; margin-bottom: 22px; max-width: 60ch; }

.passos { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.passo {
  background: var(--papel); border: 1px solid var(--linha); border-radius: var(--raio);
  padding: 20px; box-shadow: var(--sombra-1);
}
.passo b { display: block; margin-bottom: 4px; }
.passo .numero {
  width: 34px; height: 34px; border-radius: 50%; background: var(--agua-100); color: var(--agua-700);
  display: grid; place-items: center; font-weight: 700; margin-bottom: 12px;
}
.passo p { color: var(--texto-suave); font-size: 0.95rem; }

/* ------------------------------------------------------------ busca */
.busca { position: relative; margin: 0 0 20px; }
.busca input {
  width: 100%; font: inherit; padding: 15px 18px 15px 48px; border-radius: 999px;
  border: 1.5px solid var(--linha); background: var(--papel); color: var(--texto);
  box-shadow: var(--sombra-1);
}
.busca input::placeholder { color: var(--texto-suave); }
.busca svg { position: absolute; left: 17px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; color: var(--texto-suave); }
.busca .limpar {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  border: 0; background: transparent; color: var(--texto-suave); font: inherit; cursor: pointer;
  padding: 8px 12px; border-radius: 999px;
}
.busca .limpar:hover { background: var(--agua-50); }

.filtros { display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 12px; scrollbar-width: thin; }
.filtros::-webkit-scrollbar { height: 6px; }
.filtros::-webkit-scrollbar-thumb { background: var(--linha); border-radius: 3px; }
.filtro {
  flex: none; border: 1.5px solid var(--linha); background: var(--papel); color: var(--texto-suave);
  padding: 8px 15px; border-radius: 999px; font: inherit; font-size: 0.9rem; cursor: pointer;
  text-decoration: none; white-space: nowrap;
}
.filtro[aria-pressed="true"], .filtro.ativo { background: var(--agua-800); border-color: var(--agua-800); color: #fff; }

/* ------------------------------------------------------------ catálogo */
.grade {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 158px), 1fr));
}
@media (min-width: 700px) { .grade { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 22px; } }

.cartao {
  background: var(--papel); border: 1px solid var(--linha); border-radius: var(--raio);
  overflow: hidden; text-decoration: none; color: inherit; display: flex; flex-direction: column;
  box-shadow: var(--sombra-1); transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.cartao:hover { transform: translateY(-3px); box-shadow: var(--sombra-2); }
.cartao .moldura { aspect-ratio: 4 / 3; background: var(--agua-50); overflow: hidden; }
.cartao .moldura img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cartao .texto { padding: 12px 14px 15px; }
.cartao h3 { font-size: 1.02rem; margin: 0 0 2px; }
.cartao .cientifico { font-family: var(--fonte-cientifica); font-style: italic; color: var(--agua-700); font-size: 0.88rem; }
@media (prefers-color-scheme: dark) { .cartao .cientifico { color: var(--agua-300); } }
.cartao .bacia-mini { display: block; margin-top: 8px; font-size: 0.76rem; color: var(--texto-suave); }
.cartao.rascunho .moldura { filter: grayscale(0.5); }

.aviso-vazio {
  text-align: center; padding: 48px 16px; color: var(--texto-suave);
  background: var(--papel); border: 1px dashed var(--linha); border-radius: var(--raio);
}

/* ------------------------------------------------------------ bacias */
.lista-bacias { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.cartao-bacia {
  background: var(--papel); border: 1px solid var(--linha); border-radius: var(--raio);
  padding: 20px; text-decoration: none; color: inherit; box-shadow: var(--sombra-1);
  display: flex; flex-direction: column; gap: 12px;
}
.cartao-bacia:hover { box-shadow: var(--sombra-2); }
.cartao-bacia h3 { margin: 0; }
.cartao-bacia .contagem { color: var(--agua-700); font-weight: 600; font-size: 0.9rem; }
@media (prefers-color-scheme: dark) { .cartao-bacia .contagem { color: var(--agua-300); } }
.miniaturas { display: flex; gap: -8px; }
.miniaturas img {
  width: 46px; height: 46px; border-radius: 50%; object-fit: cover;
  border: 2px solid var(--papel); margin-right: -10px; box-shadow: var(--sombra-1);
}

/* ------------------------------------------------------------ ficha da espécie */
.barra-ficha {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  /* flutua sobre a fotografia: a foto é o primeiro elemento que o visitante vê */
  margin-bottom: -62px;
  background: linear-gradient(to bottom, rgba(6, 39, 48, 0.72), rgba(6, 39, 48, 0));
}
.barra-ficha.solida { background: var(--agua-900); box-shadow: var(--sombra-1); }
.barra-ficha a, .barra-ficha button {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(8, 34, 42, 0.55); backdrop-filter: blur(8px);
  color: #fff; text-decoration: none; border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px; padding: 9px 15px; font: inherit; font-size: 0.9rem; font-weight: 600; cursor: pointer;
}
.barra-ficha .ao-lado { margin-left: auto; }
.barra-ficha svg { width: 18px; height: 18px; }

.ficha { max-width: 780px; margin: 0 auto 40px; }
.ficha .foto-principal { margin: 0; position: relative; background: var(--agua-900); }
.ficha .foto-principal img { width: 100%; height: auto; aspect-ratio: 4 / 3; max-height: 62vh; object-fit: cover; }
@media (min-width: 780px) {
  .ficha { margin-top: 22px; border-radius: var(--raio); overflow: hidden; box-shadow: var(--sombra-2); background: var(--papel); }
  .ficha .foto-principal img { aspect-ratio: 16 / 9; max-height: 70vh; }
  .barra-ficha { border-radius: var(--raio) var(--raio) 0 0; }
}
.ficha .credito {
  font-size: 0.74rem; color: var(--texto-suave); padding: 6px 18px 0; text-align: right;
}

.identificacao { padding: 18px 18px 6px; background: var(--papel); }
.identificacao .rotulo-campo {
  font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--texto-suave); font-weight: 700; margin: 0 0 2px;
}
.identificacao h1 { margin: 0 0 6px; }
.nome-cientifico {
  font-family: var(--fonte-cientifica); font-style: italic; font-size: 1.2rem;
  color: var(--agua-700); margin: 0 0 4px; font-weight: 500;
}
@media (prefers-color-scheme: dark) { .nome-cientifico { color: var(--agua-300); } }
.outros-nomes { color: var(--texto-suave); font-size: 0.9rem; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 14px 0 0; }
.chips li {
  display: inline-flex; align-items: center; gap: 6px; background: var(--agua-50);
  border: 1px solid var(--agua-100); color: var(--agua-800);
  border-radius: 999px; font-size: 0.85rem; font-weight: 600; padding: 6px 13px;
}
.chips li.ligada { padding: 0; }
.chips a { display: inline-flex; align-items: center; gap: 6px; color: inherit; text-decoration: none; padding: 6px 13px; }
.chips li.ligada:hover { background: var(--agua-100); }
@media (prefers-color-scheme: dark) {
  .chips li { background: var(--agua-100); border-color: var(--linha); color: var(--agua-300); }
}
.chips svg { width: 15px; height: 15px; opacity: 0.8; }

.bloco { padding: 22px 18px; background: var(--papel); border-top: 1px solid var(--linha); }
.bloco:first-of-type { border-top: 0; }
.bloco h2 { display: flex; align-items: center; gap: 10px; font-size: 1.16rem; margin-bottom: 10px; }
.bloco h2 .icone {
  width: 34px; height: 34px; flex: none; border-radius: 10px; background: var(--agua-50);
  color: var(--agua-700); display: grid; place-items: center;
}
@media (prefers-color-scheme: dark) { .bloco h2 .icone { background: var(--agua-100); color: var(--agua-300); } }
.bloco h2 .icone svg { width: 19px; height: 19px; }
.bloco p { color: var(--texto); }

.curiosidade {
  margin: 18px; padding: 22px; border-radius: var(--raio);
  background: linear-gradient(135deg, var(--ambar-fundo), var(--papel));
  border: 1.5px solid var(--ambar);
  position: relative; box-shadow: var(--sombra-1);
}
.curiosidade h2 {
  display: flex; align-items: center; gap: 10px; color: var(--ambar-forte);
  font-size: 1.25rem; margin-bottom: 8px;
}
.curiosidade h2 svg { width: 26px; height: 26px; }
.curiosidade p { font-size: 1.04rem; }

.rodape-ficha { padding: 4px 18px 24px; background: var(--papel); }
.explorar { background: var(--areia); border-top: 1px solid var(--linha); padding: 26px 18px 30px; }
.explorar h2 { font-size: 1.1rem; }
.trilho {
  display: grid; grid-auto-flow: column; grid-auto-columns: 150px; gap: 14px;
  overflow-x: auto; padding-bottom: 10px; scroll-snap-type: x mandatory;
}
.trilho .cartao { scroll-snap-align: start; }
.trilho .moldura { aspect-ratio: 1 / 1; }
.acoes-ficha { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }

/* ------------------------------------------------------------ rodapé */
.rodape {
  background: var(--agua-900); color: #bcdfe4; margin-top: 40px; padding: 30px 0;
  font-size: 0.9rem;
}
.rodape .conteudo { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between; }
.rodape a { color: #eafcff; }
.rodape strong { color: #fff; display: block; font-size: 1rem; }

/* ------------------------------------------------------------ diversos */
.migalhas { font-size: 0.85rem; color: var(--texto-suave); padding: 18px 0 0; }
.migalhas a { color: inherit; }
.aviso {
  background: var(--ambar-fundo); border: 1px solid var(--ambar); color: var(--ambar-forte);
  padding: 14px 16px; border-radius: var(--raio-p); margin: 16px 0; font-size: 0.94rem;
}
.oculto { display: none !important; }
.somente-leitores {
  position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

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

@media print {
  .cabecalho, .barra-ficha, .explorar, .rodape, .acoes-ficha { display: none !important; }
  body { background: #fff; }
  .ficha { box-shadow: none; }
}