:root {
  color-scheme: light dark;
  --bg: #fafafa;
  --fg: #1a1a1a;
  --accent: #2563eb;
  --border: #d4d4d4;
  --danger: #b91c1c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181d;
    --fg: #e8e8e8;
    --border: #33363c;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--fg);
}

.login-box {
  max-width: 320px;
  margin: 15vh auto;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.login-box h1 { font-size: 1.25rem; margin-bottom: 1.5rem; }

.login-box form { display: flex; flex-direction: column; gap: 0.75rem; }

.login-box input {
  font-size: 1.5rem;
  letter-spacing: 0.5rem;
  text-align: center;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--fg);
}

.login-box button {
  padding: 0.6rem;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: white;
  font-size: 1rem;
  cursor: pointer;
}

.error { color: var(--danger); font-size: 0.875rem; }

.topbar { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); }
.topbar nav a { color: var(--accent); text-decoration: none; }

.controls { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; padding: 1rem 1.5rem; }
.controls label { display: flex; flex-direction: column; font-size: 0.8rem; gap: 0.25rem; }
.controls select { padding: 0.4rem; border-radius: 4px; border: 1px solid var(--border); background: transparent; color: var(--fg); }
.controls button { padding: 0.5rem 1rem; border: none; border-radius: 4px; background: var(--accent); color: white; cursor: pointer; }

table { width: 100%; border-collapse: collapse; margin: 0 1.5rem; }
th, td { text-align: left; padding: 0.6rem; border-bottom: 1px solid var(--border); white-space: normal; word-break: break-word; vertical-align: top; }
th { font-size: 0.8rem; text-transform: uppercase; opacity: 0.7; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; margin: 0 1.5rem; }
.card { border: 1px solid var(--border); border-radius: 8px; padding: 1rem; }
.card h3 { margin: 0.5rem 0; font-size: 1rem; }
.card-categoria { opacity: 0.7; font-size: 0.85rem; }

.status { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.status-forte { background: #16a34a; color: white; }
.status-moderada { background: #ca8a04; color: white; }
.status-verificar { background: #ea580c; color: white; }
.status-descartado { background: #6b7280; color: white; }

.categorias-list { display: flex; flex-direction: column; gap: 0.75rem; margin: 0 1.5rem 2rem; }
.categoria-row { display: grid; grid-template-columns: 1fr auto auto; gap: 0.75rem; align-items: center; padding: 0.75rem; border: 1px solid var(--border); border-radius: 6px; }
.categoria-row input.categoria-nome { padding: 0.4rem; border-radius: 4px; border: 1px solid var(--border); background: transparent; color: var(--fg); }
.categoria-stats { font-size: 0.8rem; opacity: 0.75; white-space: nowrap; }
.teste-resultado { grid-column: 1 / -1; font-size: 0.85rem; padding-top: 0.5rem; border-top: 1px dashed var(--border); }