:root {
  --bg: #f4f7f8;
  --surface: #ffffff;
  --text: #1a2b2f;
  --muted: #5c6f75;
  --accent: #0f4c5c;
  --accent-2: #167a8b;
  --border: #d5e0e4;
  --danger: #b42318;
  --ok: #0e7a4c;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}
#app {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 16px 48px;
}
.top { padding: 20px 0 8px; }
.brand {
  font-size: 13px;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--accent);
}
.subtitle {
  margin-top: 6px;
  font-size: 22px;
  font-weight: 650;
}
.panel {
  margin-top: 16px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 14px; }
.error { color: var(--danger); min-height: 1.2em; }
.hint { color: var(--muted); font-size: 13px; margin-top: 10px; }
.ok { color: var(--ok); }
.lbl {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  margin-top: 10px;
}
.lbl.grow { flex: 1; }
input, select, textarea {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: #fff;
}
.btn {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font: inherit;
}
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.accent {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
}
.btn.secondary { background: #fff; }
.btn.danger {
  color: var(--danger);
  border-color: #f0c2c0;
}
.row {
  display: flex;
  align-items: center;
}
.row.between { justify-content: space-between; }
.row.gap { gap: 8px; }
.row.wrap { flex-wrap: wrap; }
.list { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fafcfc;
}
.card h3 { margin: 0; font-size: 16px; }
.card .meta { font-size: 12px; color: var(--muted); margin-top: 4px; }
.fields { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.field-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  background: #fafcfc;
}
.field-card .grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}
.field-card .full { grid-column: 1 / -1; }
.field-actions { margin-top: 8px; display: flex; gap: 6px; flex-wrap: wrap; }
.brand-box {
  margin-top: 16px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fafcfc;
}
.brand-box h3 { margin: 0 0 6px; font-size: 15px; color: var(--accent); }
.logo-preview-wrap {
  width: 96px;
  height: 96px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  overflow: hidden;
  flex-shrink: 0;
}
.logo-preview {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.logo-placeholder {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  padding: 8px;
}
.json-box { margin-top: 16px; }
.json-box pre {
  overflow: auto;
  background: #0f4c5c0d;
  padding: 12px;
  border-radius: 8px;
  font-size: 12px;
}
@media (max-width: 720px) {
  .field-card .grid { grid-template-columns: 1fr; }
}