* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; color: #1a1a1a; background: #f4f6f9;
  font-family: -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; }

header { padding: 18px 24px; background: #1b2a4a; color: #fff; }
header h1 { margin: 0; font-size: 22px; }
header p { margin: 4px 0 0; opacity: 0.85; font-size: 14px; }
header a { color: #cfd9ec; text-decoration: none; font-size: 13px; }
header a:hover { text-decoration: underline; }

main { padding: 20px 24px; max-width: 1100px; margin: 0 auto; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.card { background: #fff; border: 1px solid #d5dbe6; border-radius: 8px; padding: 16px;
  display: flex; flex-direction: column; gap: 8px; }
.card h2 { margin: 0; font-size: 17px; }
.card p { margin: 0; color: #555; font-size: 14px; flex: 1; }
.card a.open { align-self: start; background: #1b2a4a; color: #fff; padding: 8px 14px;
  border-radius: 6px; text-decoration: none; font-size: 14px; }

.panel { background: #fff; border: 1px solid #d5dbe6; border-radius: 8px; padding: 16px;
  margin-bottom: 16px; }
.field { display: grid; gap: 6px; margin-bottom: 12px; }
.field label { font-weight: 600; font-size: 14px; }
.field .hint { color: #667; font-size: 12px; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.actions { display: flex; gap: 8px; margin-top: 4px; }
button { background: #1b2a4a; color: #fff; border: 0; padding: 10px 16px;
  border-radius: 6px; cursor: pointer; font-size: 14px; }
button[disabled] { opacity: 0.5; cursor: not-allowed; }

.status { margin: 10px 0; color: #444; font-size: 14px; min-height: 1.2em; }
.status.error { color: #b00020; font-weight: 600; }

.table-wrap { width: 100%; overflow: auto; border: 1px solid #d5dbe6; border-radius: 6px;
  background: #fff; }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table-wrap thead { background: #eef1f6; }
.table-wrap th, .table-wrap td { padding: 8px 10px; border: 1px solid #e3e7ee; text-align: left; }

iframe.preview { width: 100%; height: 70vh; border: 1px solid #d5dbe6; border-radius: 6px;
  background: #fff; }

footer { padding: 16px 24px; color: #556; font-size: 13px; }