:root {
  --fundo: #11151b;
  --painel: #1a202a;
  --painel-2: #222a36;
  --borda: #2f3947;
  --texto: #e6ecf3;
  --apagado: #8d9bb0;
  --sinal: #38d39f;
  --sinal-fraco: rgba(56, 211, 159, 0.12);
  --perigo: #ef6b6b;
  --raio: 10px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--texto);
  background: var(--fundo);
  background-image: radial-gradient(1200px 500px at 50% -260px, #1c2530 0%, transparent 70%);
}

.caixa {
  max-width: 41rem;
  margin: 0 auto;
  padding: 2.25rem 1rem 4rem;
}

/* Cabeçalho */
.cabeca { position: relative; margin-bottom: 1.25rem; }
h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.sub {
  margin: 0.25rem 0 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.8125rem;
  color: var(--apagado);
}
.sair {
  position: absolute;
  top: 0.25rem;
  right: 0;
  font-size: 0.8125rem;
  color: var(--apagado);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.sair:hover { color: var(--texto); border-bottom-color: var(--borda); }

h2 {
  margin: 0 0 0.9rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--apagado);
}

/* Painéis */
.painel {
  background: var(--painel);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

/* Login */
.login { max-width: 22rem; }
.login label { display: block; font-size: 0.875rem; margin-bottom: 0.4rem; color: var(--apagado); }
input[type="password"] {
  width: 100%;
  font: inherit;
  padding: 0.65rem 0.8rem;
  color: var(--texto);
  background: var(--fundo);
  border: 1px solid var(--borda);
  border-radius: 8px;
}
input[type="password"]:focus-visible { outline: 2px solid var(--sinal); outline-offset: 1px; }
.erro { color: var(--perigo); font-size: 0.875rem; margin: 0.6rem 0 0; }
.acao {
  margin-top: 0.9rem;
  font: inherit;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  color: #0c1218;
  background: var(--sinal);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
.acao:hover { filter: brightness(1.08); }
.acao:focus-visible { outline: 2px solid var(--texto); outline-offset: 2px; }

/* Área de soltar */
.solta { padding: 0; overflow: hidden; }
.alvo {
  padding: 2.5rem 1.25rem;
  text-align: center;
  border: 2px dashed var(--borda);
  border-radius: var(--raio);
  margin: -1px;
  transition: background-color 0.15s, border-color 0.15s;
}
.solta.ativo .alvo { border-color: var(--sinal); background: var(--sinal-fraco); }
.icone {
  width: 34px; height: 34px;
  fill: none; stroke: var(--sinal); stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
  margin-bottom: 0.5rem;
}
.chamada { margin: 0; font-size: 1.0625rem; font-weight: 500; }
.ou { margin: 0.3rem 0 0; color: var(--apagado); font-size: 0.9375rem; }
.limite {
  margin: 0.75rem 0 0;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--apagado);
}
.link {
  font: inherit;
  color: var(--sinal);
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  border-bottom: 1px solid currentColor;
}

/* Fila de envio */
.fila { list-style: none; margin: 0 0 1rem; padding: 0; }
.fila li {
  background: var(--painel);
  border: 1px solid var(--borda);
  border-radius: var(--raio);
  padding: 0.7rem 0.9rem;
  margin-bottom: 0.5rem;
}
.fila .topo { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.fila .arq {
  font-size: 0.9375rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.fila .pct {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.8125rem;
  color: var(--apagado);
  flex: none;
}
.barra { height: 4px; margin-top: 0.55rem; background: var(--painel-2); border-radius: 2px; overflow: hidden; }
.barra i { display: block; height: 100%; width: 0; background: var(--sinal); transition: width 0.15s linear; }
.fila li.falhou .pct { color: var(--perigo); }
.fila li.falhou .barra i { background: var(--perigo); }
.fila li.pronto .pct { color: var(--sinal); }

/* Lista de arquivos */
.arquivos { list-style: none; margin: 0; padding: 0; }
.arquivo {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.15rem 1rem;
  align-items: center;
  padding: 0.7rem 0;
  border-top: 1px solid var(--borda);
}
.arquivo:first-child { border-top: 0; padding-top: 0; }
.nome {
  grid-column: 1;
  color: var(--texto);
  text-decoration: none;
  font-size: 0.9375rem;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.nome:hover { color: var(--sinal); }
.meta {
  grid-column: 1;
  grid-row: 2;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--apagado);
}
.botoes { grid-column: 2; grid-row: 1 / span 2; display: flex; gap: 0.4rem; align-items: center; }
.form-apagar { display: inline; margin: 0; }
.mini {
  font: inherit;
  font-size: 0.75rem;
  color: var(--apagado);
  background: var(--painel-2);
  border: 1px solid var(--borda);
  border-radius: 6px;
  padding: 0.28rem 0.6rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.mini:hover { color: var(--texto); border-color: var(--apagado); }
.mini.perigo:hover { color: var(--perigo); border-color: var(--perigo); }
.vazio { margin: 0; color: var(--apagado); font-size: 0.9375rem; }

@media (max-width: 420px) {
  .alvo { padding: 1.9rem 1rem; }
  .caixa { padding-top: 1.5rem; }
}

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