:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #5a5a5a;
  --border: #d0d0d0;
  --accent: #2b5d8c;
  --accent-fg: #ffffff;
  --danger: #8c2b2b;
  --pending: #8c6d2b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --fg: #e8e8e8;
    --muted: #a0a0a0;
    --border: #3a3f44;
    --accent: #6fa8dc;
    --accent-fg: #0d1117;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--fg);
  text-decoration: none;
}

.topbar nav a {
  margin-right: 1rem;
  color: var(--accent);
  text-decoration: none;
}

.topbar nav a:hover, .topbar nav a:focus {
  text-decoration: underline;
}

.content {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.25rem;
}

.footer {
  max-width: 860px;
  margin: 2rem auto 1rem;
  padding: 0 1.25rem;
  color: var(--muted);
  font-size: 0.85rem;
}

h1, h2, h3 { line-height: 1.25; }

.card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

form.stacked label {
  display: block;
  font-weight: 600;
  margin-top: 0.75rem;
}

form.stacked textarea,
form.stacked input[type="text"],
form.stacked select {
  width: 100%;
  padding: 0.5rem;
  margin-top: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
}

form.stacked textarea {
  min-height: 8rem;
  resize: vertical;
}

.actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.75rem;
}

button, .button {
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  border-radius: 6px;
  padding: 0.55rem 1rem;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

button:hover, .button:hover { opacity: 0.9; }

.button-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.flash-messages { list-style: none; padding: 0; }
.flash {
  padding: 0.6rem 0.9rem;
  border-radius: 6px;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border);
}
.flash-success { border-color: #2b8c4f; }
.flash-error { border-color: var(--danger); }

.badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.8rem;
  margin-right: 0.35rem;
  color: var(--muted);
}

.badge-a_revisar, .badge-hipotesis, .badge-desconocido { color: var(--pending); border-color: var(--pending); }
.badge-historico { color: var(--muted); }

.empty-state {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  color: var(--muted);
  text-align: center;
}

.original-box {
  white-space: pre-wrap;
  word-wrap: break-word;
  background: color-mix(in srgb, var(--accent) 6%, var(--bg));
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.llm-notice {
  border: 1px dashed var(--pending);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--pending);
  margin-bottom: 1rem;
}