:root {
  --azul: #1f4e8c;
  --azul-claro: #e8eef7;
  --fundo: #f3f5f8;
  --cartao: #ffffff;
  --texto: #1b2330;
  --suave: #5d6878;
  --borda: #d8dee7;
  --ok: #1d7a46;
  --ok-fundo: #e5f4ea;
  --aviso: #8a5a00;
  --aviso-fundo: #fff4d9;
  --erro: #b3261e;
  --erro-fundo: #fde8e6;
  --raio: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --azul: #7aa7e6;
    --azul-claro: #1c2a3f;
    --fundo: #10141a;
    --cartao: #1a2029;
    --texto: #e6eaf0;
    --suave: #9aa5b5;
    --borda: #2c3542;
    --ok: #6fd39b;
    --ok-fundo: #15301f;
    --aviso: #f3c35b;
    --aviso-fundo: #3a2e10;
    --erro: #ff8a80;
    --erro-fundo: #3d1714;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; } /* classes com display não podem anular o atributo hidden */
html, body { margin: 0; }
body {
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--fundo);
  color: var(--texto);
  padding-bottom: calc(72px + env(safe-area-inset-bottom));
}
h1 { font-size: 1.2rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 .5rem; }
code { background: var(--azul-claro); padding: 0 4px; border-radius: 4px; }

.topo {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
  background: #1f4e8c; color: #fff;
}
.status-sync {
  appearance: none; border: 1px solid rgba(255,255,255,.35); background: rgba(255,255,255,.12); color: #fff;
  font: inherit; font-size: .8rem; border-radius: 99px; padding: 4px 10px; display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
}
.status-sync i { width: 8px; height: 8px; border-radius: 50%; background: #aab4c3; }
.status-sync.ok i { background: #3ddc84; }
.status-sync.pendente i { background: #f3c35b; }
.status-sync.erro i { background: #ff6b5e; }

main { max-width: 720px; margin: 0 auto; padding: 12px 16px; }
.aba { display: none; }
.aba.ativa { display: block; }

.cartao {
  background: var(--cartao);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 14px;
  margin-bottom: 12px;
}
.dica { color: var(--suave); font-size: .85rem; margin: 0 0 .5rem; }
.dica-clara { color: #dfe6f0; font-size: .85rem; }
.centro { text-align: center; }

.passo-cab { display: flex; gap: 12px; align-items: center; margin-bottom: 8px; }
.passo-cab h2 { margin: 0; }
.passo-cab .dica { margin: 0; }
.num {
  flex: none; width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700;
  background: var(--azul-claro); color: var(--azul);
}
.passo.lido { border-color: var(--ok); }
.passo.lido .num { background: var(--ok); color: #fff; }

.dados { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; margin: 8px 0; font-size: .95rem; }
.dados dt { color: var(--suave); }
.dados dd { margin: 0; font-weight: 600; word-break: break-all; }
.destaque { font-size: 1.3rem; font-weight: 700; margin: 4px 0; }

.acoes { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.acoes.linha { align-items: center; }

.btn {
  appearance: none; border: 1px solid transparent; border-radius: 10px;
  padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px;
}
.btn.primario { background: #1f4e8c; color: #fff; }
.btn.secundario { background: var(--cartao); color: var(--azul); border-color: var(--borda); }
.btn.perigo { background: var(--erro-fundo); color: var(--erro); border-color: var(--erro); }
.btn.claro { background: rgba(255,255,255,.92); color: #1b2330; }
.btn.grande { width: 100%; margin-top: 8px; font-size: 1.05rem; }
.btn.pequeno { min-height: 32px; padding: 4px 10px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.campo { display: block; margin-bottom: 10px; }
.campo > span { display: block; font-size: .85rem; color: var(--suave); margin-bottom: 4px; }
input, textarea, select {
  width: 100%; font: inherit; color: var(--texto); background: var(--cartao);
  border: 1px solid var(--borda); border-radius: 8px; padding: 10px;
}
textarea { resize: vertical; }
.grade2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }
@media (max-width: 380px) { .grade2 { grid-template-columns: 1fr; } }
form h2 { margin-top: 12px; }

.alertas { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.alertas li { padding: 8px 10px; border-radius: 8px; font-size: .92rem; }
.alertas .erro { background: var(--erro-fundo); color: var(--erro); }
.alertas .aviso { background: var(--aviso-fundo); color: var(--aviso); }
.alertas .ok { background: var(--ok-fundo); color: var(--ok); }

.selo { display: inline-block; font-size: .75rem; font-weight: 700; padding: 2px 8px; border-radius: 99px; margin-right: 4px; }
.selo.ok { background: var(--ok-fundo); color: var(--ok); }
.selo.aviso { background: var(--aviso-fundo); color: var(--aviso); }
.selo.erro { background: var(--erro-fundo); color: var(--erro); }

/* Registros */
.registro { padding: 12px 14px; }
.registro summary { cursor: pointer; list-style: none; }
.registro summary::-webkit-details-marker { display: none; }
.registro .linha1 { display: flex; justify-content: space-between; gap: 8px; font-weight: 700; }
.registro .linha2 { color: var(--suave); font-size: .85rem; }
.bruto { font-family: ui-monospace, Consolas, monospace; font-size: .75rem; word-break: break-all; background: var(--fundo); padding: 8px; border-radius: 6px; }

/* Painel */
.metricas { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 12px; }
.metrica { background: var(--cartao); border: 1px solid var(--borda); border-radius: var(--raio); padding: 12px; }
.metrica .valor { font-size: 1.8rem; font-weight: 700; }
.metrica .rotulo { color: var(--suave); font-size: .85rem; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 6px 4px; border-bottom: 1px solid var(--borda); }
th { color: var(--suave); font-weight: 600; }
.barra { height: 6px; background: var(--azul-claro); border-radius: 3px; overflow: hidden; margin-top: 4px; }
.barra > i { display: block; height: 100%; background: var(--ok); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-size: .85rem; padding: 4px 8px; border-radius: 6px; background: var(--azul-claro); }

/* Navegação inferior */
.abas {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 5;
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--cartao); border-top: 1px solid var(--borda);
  padding-bottom: env(safe-area-inset-bottom);
}
.abas button {
  appearance: none; border: 0; background: none; color: var(--suave);
  font: inherit; font-size: .75rem; padding: 8px 0 10px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.abas .ico { font-size: 1.3rem; line-height: 1; }
.abas button.ativa { color: var(--azul); font-weight: 700; }

/* Scanner */
.scanner { position: fixed; inset: 0; z-index: 20; background: #000; }
.scanner video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.mira { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.quadro {
  width: min(80vw, 80vh); aspect-ratio: 1; border-radius: 16px;
  box-shadow: 0 0 0 100vmax rgba(0,0,0,.45);
  outline: 3px solid rgba(255,255,255,.9);
}
.scanner.achou .quadro { outline-color: #3ddc84; }
.scanner-topo {
  position: absolute; top: 0; left: 0; right: 0;
  padding: calc(16px + env(safe-area-inset-top)) 16px 16px;
  color: #fff; text-align: center; display: grid; gap: 4px;
  background: linear-gradient(rgba(0,0,0,.6), transparent);
  font-weight: 600;
}
.scanner-acoes {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  background: linear-gradient(transparent, rgba(0,0,0,.6));
}

dialog {
  border: 1px solid var(--borda); border-radius: var(--raio);
  background: var(--cartao); color: var(--texto);
  width: min(92vw, 520px); padding: 16px;
}
dialog::backdrop { background: rgba(0,0,0,.5); }
dialog textarea { font-family: ui-monospace, Consolas, monospace; font-size: .8rem; }

.banner {
  background: var(--aviso-fundo); color: var(--aviso);
  padding: 8px 16px; display: flex; gap: 8px; align-items: center; justify-content: center;
}

.toast {
  position: fixed; left: 50%; bottom: calc(84px + env(safe-area-inset-bottom)); transform: translateX(-50%);
  z-index: 30; max-width: 90vw;
  background: #1b2330; color: #fff; padding: 10px 16px; border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,.3); font-size: .95rem;
  pointer-events: none; /* nunca bloqueia toques nos botões embaixo */
}
.toast.erro { background: #b3261e; }

/* Login */
.usuario-topo { display: block; font-size: .8rem; opacity: .85; }
.tela-login {
  position: fixed; inset: 0; z-index: 15; background: var(--fundo);
  display: grid; place-items: center; padding: 16px; overflow-y: auto;
}
.tela-login form { width: min(100%, 380px); text-align: center; }
.tela-login form .campo { text-align: left; }
.tela-login img { border-radius: 14px; }
.erro-texto { color: var(--erro); background: var(--erro-fundo); padding: 8px 10px; border-radius: 8px; font-size: .9rem; text-align: left; }
.usuario-item { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 10px 0; border-bottom: 1px solid var(--borda); }
.usuario-item:last-child { border-bottom: 0; }
.usuario-item .acoes { margin: 0; flex: none; }
.usuario-item.inativo { opacity: .55; }