:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1c2330;
  --muted: #5f6b7d;
  --border: #dde1e8;
  --primary: #2b6fe0;
  --primary-text: #ffffff;
  --ok: #167a3e;
  --warn: #a15c00;
  --err: #c0302a;
  --chip: #eef1f6;
  --shadow: 0 1px 3px rgba(20, 30, 50, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151c;
    --card: #1a2029;
    --text: #e6e9ef;
    --muted: #97a2b3;
    --border: #2b3340;
    --primary: #5b95f0;
    --primary-text: #0b1220;
    --ok: #4cc47a;
    --warn: #e0a24a;
    --err: #ff7a73;
    --chip: #252d3a;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

header h1 { margin: 0; font-size: 22px; }

main { max-width: 1200px; margin: 0 auto; padding: 16px; display: grid; gap: 16px; }

section, .card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  box-shadow: var(--shadow);
}

h2 { margin: 0 0 10px; font-size: 17px; }
h3 { margin: 0 0 6px; font-size: 15px; }

.muted { color: var(--muted); }
.small { font-size: 13px; }
.hidden { display: none !important; }

.grid2 { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.banner { padding: 10px 14px; border-radius: 8px; border: 1px solid var(--border); }
.banner.ok { border-color: var(--ok); color: var(--ok); }
.banner.error { border-color: var(--err); color: var(--err); }

button, .btn {
  font: inherit;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:hover:not(:disabled), .btn:hover { border-color: var(--primary); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.primary, .btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
button.danger { color: var(--err); }
button.small, .btn.small { padding: 4px 10px; font-size: 13px; }

input[type=text], input[type=password], input[type=number], input[type=search], select {
  font: inherit;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  max-width: 100%;
}

label { display: block; margin: 8px 0 4px; font-weight: 600; font-size: 14px; }
label.check { display: flex; gap: 8px; align-items: center; font-weight: normal; }

.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.row.gap-lg { gap: 16px; }

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--chip);
  font-size: 12px;
  white-space: nowrap;
}
.pill.ok { color: var(--ok); }
.pill.warn { color: var(--warn); }
.pill.err { color: var(--err); }

.progress { height: 14px; background: var(--chip); border-radius: 999px; overflow: hidden; margin: 8px 0; }
.progress > div { height: 100%; width: 0; background: var(--primary); transition: width 0.4s; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); white-space: nowrap; }
td.num, th.num { text-align: right; white-space: nowrap; }
td.title { min-width: 220px; max-width: 380px; }
td a { color: var(--primary); text-decoration: none; }
td a:hover { text-decoration: underline; }
img.thumb { width: 44px; height: 44px; object-fit: cover; border-radius: 6px; background: var(--chip); display: block; }
.strike { text-decoration: line-through; color: var(--muted); font-size: 12px; display: block; }
.err-text { color: var(--err); font-size: 12px; max-width: 260px; }

.pager { display: flex; gap: 10px; align-items: center; justify-content: center; margin-top: 12px; }

details summary { cursor: pointer; font-weight: 600; }
pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  overflow: auto;
  max-height: 340px;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}
#logs { max-height: 300px; }

dialog {
  width: min(900px, 94vw);
  max-height: 90vh;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  color: var(--text);
  padding: 16px;
}
dialog::backdrop { background: rgba(0, 0, 0, 0.5); }
dialog .head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 8px; }
dialog .head h2 { margin: 0; }
ul.warnings { margin: 6px 0 10px; padding-left: 20px; color: var(--warn); }

/* login */
.login-box { max-width: 380px; margin: 12vh auto 0; padding: 0 16px; }
.login-box .card { display: grid; gap: 6px; }
.login-box h1 { margin: 0 0 6px; text-align: center; }
.login-box .intro { text-align: center; margin: 0 0 6px; }
.login-box input { width: 100%; }
.login-box button { margin-top: 12px; width: 100%; }

@media (max-width: 640px) {
  header { padding: 10px 12px; }
  main { padding: 10px; }
  section, .card { padding: 12px; }
}

/* flujo guiado */
.demo-banner {
  background: #f2b01e;
  color: #1c1400;
  text-align: center;
  font-weight: 700;
  padding: 8px 12px;
  letter-spacing: 0.02em;
}
.step-head { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.step-head h2 { margin: 0; font-size: 19px; }
.step-num {
  display: inline-flex;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary);
  color: var(--primary-text);
  font-weight: 700;
}
.badge { margin-left: auto; padding: 3px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; background: var(--chip); }
.badge.done { color: var(--ok); }
.badge.pending { color: var(--warn); }
.badge.locked { color: var(--muted); }
.step.locked { opacity: 0.6; }
.step.locked .step-num { background: var(--muted); }
.lock-note { font-weight: 600; display: none; }
.step.locked .lock-note { display: block; }
button.big, .btn.big { font-size: 16px; padding: 12px 22px; font-weight: 600; }
.row.between { justify-content: space-between; }
.actions { margin: 12px 0 4px; }
.summary { padding: 14px 16px; border-radius: 10px; border: 1px solid var(--ok); background: var(--card); }
.summary.problem { border-color: var(--warn); }
.summary p { margin: 0 0 8px; font-size: 16px; font-weight: 600; }
details.options { margin: 10px 0; }
details.options form { margin-top: 8px; }

/* vista previa de producto */
.product-card { display: grid; gap: 10px; }
.gallery { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; }
.gallery img { height: 110px; width: 110px; object-fit: cover; border-radius: 8px; background: var(--chip); flex: none; }
.product-card .price { font-size: 22px; font-weight: 700; }
.desc-frame { width: 100%; height: 220px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.tech { margin-top: 10px; }
.tech summary { font-size: 13px; color: var(--muted); font-weight: normal; }