:root {
  --fundo: #f4f5f7;
  --superficie: #ffffff;
  --coluna: #ebedf0;
  --texto: #1d2129;
  --suave: #5f6673;
  --borda: #d8dbe0;
  --destaque: #2f5bd3;
  --destaque-texto: #ffffff;
  --perigo: #c2362b;
  --ok: #1f7a4d;
  --ia: #6b3fc4;
  --sombra: 0 1px 2px rgb(16 24 40 / 8%), 0 1px 3px rgb(16 24 40 / 6%);
  --raio: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fundo: #121417;
    --superficie: #1d2025;
    --coluna: #181b1f;
    --texto: #e6e8eb;
    --suave: #9aa1ad;
    --borda: #30343b;
    --destaque: #6d8ff0;
    --destaque-texto: #0d1117;
    --perigo: #ef6b5f;
    --ok: #4cc38a;
    --ia: #b292f2;
    --sombra: 0 1px 2px rgb(0 0 0 / 40%);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--fundo);
  color: var(--texto);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 18px; }
h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--suave); }
button, input, select, textarea { font: inherit; color: inherit; }

.botao {
  border: 1px solid var(--borda);
  background: var(--superficie);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
}
.botao:hover { border-color: var(--suave); }
.botao.primario { background: var(--destaque); color: var(--destaque-texto); border-color: var(--destaque); }
.botao.perigo { color: var(--perigo); }
.botao.discreto { background: transparent; border-color: transparent; color: var(--suave); }
.botao.discreto:hover { color: var(--texto); }
.botao.copiado { color: var(--ok); border-color: var(--ok); }
:focus-visible { outline: 2px solid var(--destaque); outline-offset: 2px; }

input, select, textarea {
  width: 100%;
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: 6px;
  padding: 7px 9px;
}
textarea { resize: vertical; }
.mono, .prompt { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 12.5px; }

/* Topo */
.topo {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--borda);
  background: var(--superficie);
  flex-wrap: wrap;
}
.filtros { display: flex; gap: 8px; flex: 1; min-width: 240px; }
.filtros select { max-width: 260px; }
.filtros input { max-width: 260px; }
.acoes-topo { display: flex; gap: 8px; align-items: center; }
.acoes-topo form { margin: 0; }

.aviso {
  margin: 8px 16px 0;
  padding: 8px 12px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--perigo) 14%, transparent);
  color: var(--perigo);
}

/* Quadro */
.quadro {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(240px, 1fr));
  gap: 12px;
  padding: 16px;
  overflow-x: auto;
  align-items: start;
}
.coluna {
  background: var(--coluna);
  border-radius: var(--raio);
  padding: 10px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.coluna h2 { font-size: 13px; font-weight: 600; padding: 2px 4px; display: flex; gap: 6px; align-items: center; }
.contador { color: var(--suave); font-weight: 400; }
.lista { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; min-height: 60px; flex: 1; }
.coluna.alvo { outline: 2px dashed var(--destaque); outline-offset: -2px; }

.cartao {
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 10px 12px;
  box-shadow: var(--sombra);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.cartao:hover { border-color: var(--suave); }
.cartao.arrastando { opacity: .4; }
.cartao .titulo { font-weight: 500; overflow-wrap: anywhere; }
.cartao .rodape { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.marcador { height: 3px; background: var(--destaque); border-radius: 2px; }

.selo {
  font-size: 11.5px;
  padding: 1px 7px;
  border-radius: 999px;
  border: 1px solid var(--borda);
  color: var(--suave);
  white-space: nowrap;
}
.selo.ia { color: var(--ia); border-color: color-mix(in srgb, var(--ia) 45%, transparent); }
.selo.manual { color: var(--suave); }
.selo.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }
.vazio { color: var(--suave); font-size: 12.5px; padding: 8px 4px; }

/* Painéis */
.painel {
  width: min(760px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 0;
  background: var(--superficie);
  color: var(--texto);
}
.painel::backdrop { background: rgb(0 0 0 / 45%); }
.painel > article, .painel > form { padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.painel-topo { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.painel-topo h2 { font-size: 18px; overflow-wrap: anywhere; }
.painel-rodape { display: flex; justify-content: space-between; gap: 8px; padding-top: 4px; }
.painel form label { display: flex; flex-direction: column; gap: 4px; font-weight: 500; }
.painel label small { color: var(--suave); font-weight: 400; }
.painel label.marcar { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
.painel label.marcar input { width: auto; }
.duas { display: grid; grid-template-columns: 2fr 1fr; gap: 12px; }
.meta { color: var(--suave); font-size: 12.5px; margin: 0; }
.linha-status { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; }
.linha-status label { display: flex; flex-direction: column; gap: 4px; font-weight: 500; }
.linha-status select { width: auto; }
.bloco { display: flex; flex-direction: column; gap: 6px; }
.bloco-topo { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.texto { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.texto:empty::before, .prompt:empty::before { content: "—"; color: var(--suave); }
.prompt {
  margin: 0;
  padding: 12px;
  background: var(--fundo);
  border: 1px solid var(--borda);
  border-radius: 6px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 320px;
  overflow: auto;
}
.etapas { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 6px; }
.etapas label { display: flex; gap: 8px; align-items: flex-start; cursor: pointer; }
.etapas input { width: auto; margin-top: 3px; }
.etapas .feito span { text-decoration: line-through; color: var(--suave); }
.erro { color: var(--perigo); margin: 0; }

/* Login */
.tela-login { align-items: center; justify-content: center; padding: 16px; }
.cartao-login {
  background: var(--superficie);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 24px;
  width: min(360px, 100%);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cartao-login label { display: flex; flex-direction: column; gap: 4px; font-weight: 500; }

@media (max-width: 720px) {
  .topo { gap: 10px; }
  .filtros { order: 3; flex-basis: 100%; }
  .filtros select, .filtros input { max-width: none; }
  .acoes-topo { margin-left: auto; }
  .quadro { grid-template-columns: repeat(4, 85vw); scroll-snap-type: x mandatory; }
  .coluna { scroll-snap-align: start; }
  .duas { grid-template-columns: 1fr; }
}