@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;600;700;800&display=swap');

:root {
  --fundo: #f4f8fa;
  --papel: #ffffff;
  --tinta: #183b56;
  --suave: #617587;
  --linha: #d8e5eb;
  --verde: #075985;
  --amarelo: #f28c28;
  --azul-claro: #e7f3f8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--tinta);
  background-image: url('WhatsApp Image 2026-10-17 at 09.28.38.jpeg');
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
  font-family: 'Manrope', sans-serif;
}

.topo, .conteudo, footer { width: min(1120px, calc(100% - 40px)); margin: auto; }
.topo { display: flex; justify-content: space-between; align-items: end; padding: 60px 0 42px; }
.navegacao { width: min(1120px, calc(100% - 40px)); margin: 0 auto 24px; display: flex; gap: 8px; flex-wrap: wrap; }
.nav-link { width: auto; margin: 0; padding: 10px 16px; color: #fff; background: rgba(7, 89, 133, .88); border: 1px solid rgba(255, 255, 255, .6); box-shadow: none; }
.nav-link:hover, .nav-link.ativo { color: #fff; background: var(--amarelo); border-color: var(--amarelo); }
.etiqueta, .numero, footer { font-family: 'DM Mono', monospace; }
.etiqueta { color: #fff; font-size: 12px; letter-spacing: .14em; font-weight: 700; }
h1, h2, p { margin: 0; }
h1 { color: #fff; text-shadow: 0 2px 10px rgba(0, 0, 0, .45); font-size: clamp(2rem, 5vw, 4rem); letter-spacing: -.07em; line-height: .95; max-width: 600px; }
.subtitulo { color: #fff; text-shadow: 0 1px 5px rgba(0, 0, 0, .6); margin-top: 16px; font-size: 15px; }
.marcador { border-left: 1px solid var(--linha); padding-left: 24px; min-width: 130px; }
.marcador span { display: block; color: var(--verde); font-size: 34px; font-weight: 800; line-height: 1; }
.marcador small { color: #fff; text-shadow: 0 1px 4px rgba(0, 0, 0, .55); font-size: 11px; }
.conteudo { display: grid; grid-template-columns: 340px 1fr; gap: 18px; padding-bottom: 50px; }
.painel { min-width: 0; background: rgba(255, 255, 255, .92); border: 1px solid var(--linha); border-radius: 16px; padding: 28px; box-shadow: 0 12px 30px rgba(24, 59, 86, .06); }
.tela { display: none; }
.tela.ativa { display: block; grid-column: 1 / -1; }
.titulo-secao { display: flex; align-items: flex-start; gap: 14px; }
.numero { color: var(--amarelo); font-size: 12px; padding-top: 5px; font-weight: 700; }
h2 { font-size: 20px; letter-spacing: -.04em; }
.titulo-secao p { color: var(--suave); font-size: 12px; margin-top: 5px; }
form { margin-top: 32px; }
label { display: block; color: var(--suave); font-size: 11px; font-weight: 700; letter-spacing: .04em; margin-bottom: 17px; }
input { display: block; width: 100%; margin-top: 7px; border: 1px solid var(--linha); border-radius: 2px; background: transparent; padding: 12px; color: var(--tinta); font: 14px 'Manrope', sans-serif; outline-color: var(--verde); }
.linha-campos { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
button { width: 100%; margin-top: 5px; padding: 14px; border: 0; border-radius: 9px; color: #fff; background: var(--amarelo); cursor: pointer; font: 700 13px 'Manrope', sans-serif; box-shadow: 0 5px 12px rgba(242, 140, 40, .2); }
button:hover { background: #dc7413; }
button span { color: #fff; font-size: 18px; margin-left: 5px; vertical-align: -1px; }
.mensagem { min-height: 18px; color: var(--verde); font-size: 12px; margin-top: 13px; }
.cabecalho-acervo { display: flex; justify-content: space-between; gap: 20px; align-items: start; border-bottom: 1px solid var(--linha); padding-bottom: 25px; }
.busca { width: 230px; position: relative; margin: 0; }
.busca span { position: absolute; left: 12px; top: 7px; color: var(--verde); font-size: 24px; font-weight: 400; }
.busca input { padding-left: 35px; margin: 0; background: var(--azul-claro); border-color: transparent; }
.lista-livros { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding-top: 20px; min-width: 0; }
.livro { border: 1px solid var(--linha); border-radius: 11px; padding: 18px; min-height: 145px; position: relative; background: #fff; }
.livro h3 { font-size: 16px; line-height: 1.25; margin: 0 0 8px; padding-right: 20px; }
.livro .autor { color: var(--suave); font-size: 12px; }
.detalhes { display: flex; gap: 14px; color: var(--suave); font: 11px 'DM Mono', monospace; margin-top: 25px; }
.vazio { color: var(--suave); font-size: 14px; padding: 35px 0; text-align: center; grid-column: 1 / -1; }
.emprestimos { grid-column: 1 / -1; }
.atrasados { grid-column: 1 / -1; }
.prazo { color: var(--verde); background: var(--azul-claro); border: 0; border-radius: 20px; padding: 9px 12px; font: 11px 'DM Mono', monospace; white-space: nowrap; }
.alerta { color: #a94f13; background: #fff0df; border-radius: 20px; padding: 9px 12px; font: 11px 'DM Mono', monospace; white-space: nowrap; }
.form-emprestimo { display: grid; grid-template-columns: 1.2fr 1.4fr 1fr auto; gap: 14px; align-items: end; margin-top: 25px; }
.form-emprestimo label { margin: 0; }
select { display: block; width: 100%; margin-top: 7px; border: 1px solid var(--linha); border-radius: 2px; background: transparent; padding: 12px; color: var(--tinta); font: 14px 'Manrope', sans-serif; }
.form-emprestimo button { margin: 0; height: 43px; }
.lista-emprestimos { margin-top: 30px; }
.lista-emprestimos h3 { border-bottom: 1px solid var(--linha); padding-bottom: 12px; font-size: 13px; }
.emprestimo { display: grid; grid-template-columns: 1.2fr 1fr auto; align-items: center; gap: 20px; border-bottom: 1px solid var(--linha); padding: 16px 0; }
.emprestimo strong { font-size: 14px; }
.emprestimo p { color: var(--suave); font-size: 12px; margin-top: 4px; }
.datas { display: flex; flex-direction: column; gap: 4px; color: var(--suave); font: 11px 'DM Mono', monospace; }
.emprestimo .botao-devolver { width: auto; padding: 10px 14px; margin: 0; background: transparent; color: var(--verde); border: 1px solid var(--verde); box-shadow: none; }
.emprestimo .botao-devolver:hover { background: var(--verde); color: white; }
.acoes-emprestimo { display: flex; align-items: center; justify-content: end; gap: 8px; }
.acoes-emprestimo button { width: auto; padding: 10px 12px; margin: 0; box-shadow: none; }
.botao-renovar { background: var(--amarelo); }
.renovado { color: var(--amarelo); font: 11px 'DM Mono', monospace; }
.ranking { margin-top: 30px; border-top: 1px solid var(--linha); padding-top: 22px; }
.titulo-ranking { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.titulo-ranking h3 { margin: 0; font-size: 13px; }
.titulo-ranking span { color: var(--amarelo); font: 11px 'DM Mono', monospace; text-transform: uppercase; }
.item-ranking { display: grid; grid-template-columns: 28px 1fr auto; gap: 10px; align-items: center; border-bottom: 1px solid var(--linha); padding: 11px 0; font-size: 12px; }
.posicao { color: var(--amarelo); font: 700 16px 'DM Mono', monospace; }
.item-ranking > span:last-child { color: var(--suave); font: 11px 'DM Mono', monospace; }
.lista-atrasados { margin-top: 20px; }
.atrasado { display: grid; grid-template-columns: 1.2fr 1fr auto; align-items: center; gap: 20px; border-bottom: 1px solid var(--linha); padding: 16px 0; }
.atrasado strong { font-size: 14px; }
.atrasado p { color: var(--suave); font-size: 12px; margin-top: 4px; }
.atrasado b { color: #c55d16; font-weight: 700; }
footer { border-top: 1px solid var(--linha); padding: 20px 0 30px; color: var(--suave); font-size: 10px; }
footer span { color: var(--amarelo); padding: 0 5px; }

@media (min-width: 900px) {
  .topo, .conteudo, footer, .navegacao {
    width: min(1050px, calc(100% - 40px));
    margin-left: auto;
    margin-right: auto;
  }

  .conteudo {
    width: min(1050px, calc(100% - 40px));
  }

  .topo { padding-top: 32px; align-items: center; flex-direction: column; gap: 22px; text-align: center; }
  h1 { font-size: clamp(2.2rem, 4vw, 3.2rem); max-width: 520px; }
  .marcador { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .7); padding: 14px 0 0; }
  .tela.ativa { width: 100%; }
  .lista-livros { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cabecalho-acervo { flex-direction: column; }
  .busca { width: 100%; }
  .navegacao { justify-content: center; }
  .form-emprestimo { grid-template-columns: 1fr; }
  .emprestimo, .atrasado { grid-template-columns: 1fr; gap: 10px; }
  .emprestimo .botao-devolver, .atrasado .botao-devolver { width: 100%; }
}

@media (max-width: 780px) {
  .topo { padding-top: 35px; align-items: start; flex-direction: column; gap: 28px; }
  .marcador { border-left: 0; border-top: 1px solid var(--linha); padding: 14px 0 0; }
  .conteudo { grid-template-columns: 1fr; }
  .lista-livros { grid-template-columns: 1fr; }
  .cabecalho-acervo { flex-direction: column; }
  .busca { width: 100%; }
  .form-emprestimo { grid-template-columns: 1fr; }
  .emprestimo { grid-template-columns: 1fr; gap: 10px; }
  .atrasado { grid-template-columns: 1fr; gap: 10px; }
  .emprestimo .botao-devolver { width: 100%; }
  .atrasado .botao-devolver { width: 100%; }
  .acoes-emprestimo { justify-content: stretch; }
  .acoes-emprestimo button { flex: 1; }
}