* { box-sizing: border-box; }
:root {
  --primary: #c8102e;      /* rojo MBE */
  --primary-dark: #9c0d24;
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #d9dde3;
  --ok: #15803d;
  --err: #b91c1c;
}
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header {
  background: var(--primary); color: #fff; padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
header h1 { font-size: 18px; margin: 0; }
header .who { font-size: 13px; opacity: .9; }
header a, header button.link {
  color: #fff; background: none; border: 1px solid rgba(255,255,255,.5);
  border-radius: 6px; padding: 5px 12px; font-size: 13px; cursor: pointer;
  text-decoration: none;
}
main { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 20px; margin-bottom: 20px;
}
.card h2 { margin: 0 0 14px; font-size: 16px; }
fieldset {
  border: 1px solid var(--border); border-radius: 8px;
  margin: 0 0 16px; padding: 12px 14px;
}
legend { font-size: 13px; font-weight: 600; color: var(--muted); padding: 0 6px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
label { display: block; font-size: 13px; }
label span { display: block; margin-bottom: 3px; color: var(--muted); }
label .req { color: var(--err); }
input, select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 6px; font: inherit; background: #fff;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #c8102e33; border-color: var(--primary); }
input.invalid { border-color: var(--err); background: #fef2f2; }
.field-error { color: var(--err); font-size: 12px; margin-top: 2px; }
button.primary {
  background: var(--primary); color: #fff; border: 0; border-radius: 8px;
  padding: 10px 22px; font: inherit; font-weight: 600; cursor: pointer;
}
button.primary:hover { background: var(--primary-dark); }
button.primary:disabled { opacity: .6; cursor: wait; }
button.secondary {
  background: #fff; color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px; font: inherit; cursor: pointer;
}
.row-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.msg { padding: 10px 14px; border-radius: 8px; margin: 10px 0; font-size: 14px; }
.msg.ok { background: #f0fdf4; border: 1px solid #bbf7d0; color: var(--ok); }
.msg.err { background: #fef2f2; border: 1px solid #fecaca; color: var(--err); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: #fafafa; }
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 12px;
  background: #eef2ff; color: #3730a3;
}
.badge.ok { background: #f0fdf4; color: var(--ok); }
.badge.off { background: #f3f4f6; color: var(--muted); }
iframe.label-view { width: 100%; height: 480px; border: 1px solid var(--border); border-radius: 8px; }
.center-box { max-width: 380px; margin: 8vh auto; }
.hidden { display: none !important; }
.card.locked { opacity: .55; pointer-events: none; user-select: none; }
.tabs { display: flex; gap: 6px; margin-bottom: 16px; border-bottom: 2px solid var(--border); }
.tabs .tab {
  background: none; border: 0; border-bottom: 3px solid transparent;
  padding: 10px 18px; font: inherit; font-weight: 600; color: var(--muted);
  cursor: pointer; margin-bottom: -2px;
}
.tabs .tab:hover { color: var(--text); }
.tabs .tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.item-row, .proforma-row {
  display: grid; gap: 8px; align-items: end; margin-bottom: 8px;
  grid-template-columns: repeat(4, 1fr) auto;
}
.proforma-row { grid-template-columns: repeat(5, 1fr) auto; }
.item-row button, .proforma-row button {
  background: none; border: 1px solid var(--border); border-radius: 6px;
  cursor: pointer; padding: 7px 10px; color: var(--err);
}
.hint { font-size: 12px; color: var(--muted); margin: 4px 0 0; }
.temp-pass {
  font-family: ui-monospace, Consolas, monospace; background: #fff7ed;
  border: 1px dashed #fdba74; padding: 4px 10px; border-radius: 6px;
}
@media (max-width: 640px) {
  .item-row, .proforma-row { grid-template-columns: 1fr 1fr; }
}