/* Automátic Infinito Mail — estilos. Blanco/negro estilo DeUnaPR: fondo #fff/#F7F7F7,
   texto #111, botones negros con texto blanco. Sin frameworks. */
:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f7;
  --text: #111111;
  --muted: #555555;
  --border: #e5e5e5;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

header.topbar h1 { font-size: 20px; margin: 0; }
header.topbar h1 span { color: var(--muted); font-weight: normal; font-size: 14px; }

.token-box { display: flex; gap: 8px; align-items: center; }
.token-box label { font-size: 13px; color: var(--muted); white-space: nowrap; }

main { max-width: 1100px; margin: 0 auto; padding: 24px; }

nav.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
nav.tabs button {
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
}
nav.tabs button.active { background: var(--text); color: #fff; border-color: var(--text); }

section.panel { display: none; }
section.panel.active { display: block; }

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card h2 { margin: 0 0 4px 0; font-size: 18px; }
.card h3 { margin: 0 0 12px 0; font-size: 16px; }
.card p.hint { color: var(--muted); font-size: 13px; margin: 0 0 16px 0; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.stat {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}
.stat .num { font-size: 28px; font-weight: bold; display: block; }
.stat .lbl { font-size: 13px; color: var(--muted); }

form { display: flex; flex-direction: column; gap: 10px; }
form.inline { flex-direction: row; flex-wrap: wrap; align-items: end; }
form.inline .field { flex: 1; min-width: 160px; }

.field label { display: block; font-size: 13px; font-weight: bold; margin-bottom: 4px; }
.field small { color: var(--muted); font-weight: normal; }

input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  color: var(--text);
  background: #fff;
}
textarea { min-height: 120px; resize: vertical; }
textarea.mono { font-family: monospace; font-size: 13px; }

button.btn {
  background: var(--text);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  white-space: nowrap;
}
button.btn:hover { opacity: 0.85; }
button.btn:disabled { opacity: 0.4; cursor: default; }
button.btn.secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--text);
}
button.btn.danger { background: #b00020; }
button.btn.small { padding: 6px 12px; font-size: 13px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
table th, table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table th { font-size: 13px; color: var(--muted); }
table tr:hover td { background: var(--bg-soft); }

/* Tabla de backends y topes */
table.backends-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.backends-table th:nth-child(n+2) { text-align: right; }
table.backends-table tr.cap-reached td { background: #fce8e6; }
table.backends-table tr.cap-reached:hover td { background: #f9d7d5; }
table.backends-table td.num.exhausted { color: #a50e0e; font-weight: bold; }
.badge.muted { background: var(--bg-soft); border-color: var(--border); color: var(--muted); }

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: bold;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}
.badge.ok { background: #e6f4ea; border-color: #a3d9a5; color: #137333; }
.badge.warn { background: #fef7e0; border-color: #f9d976; color: #7a5b00; }
.badge.err { background: #fce8e6; border-color: #f5a5a0; color: #a50e0e; }

#msg {
  display: none;
  margin: 0 0 20px 0;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
}
#msg.show { display: block; }
#msg.error { background: #fce8e6; color: #a50e0e; border: 1px solid #f5a5a0; }
#msg.success { background: #e6f4ea; color: #137333; border: 1px solid #a3d9a5; }
#msg.info { background: var(--bg-soft); color: var(--text); border: 1px solid var(--border); }

pre.result {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 240px;
  overflow: auto;
}

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
  header.topbar { flex-direction: column; align-items: flex-start; }
}

iframe.preview {
  width: 100%;
  height: 420px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px; }