:root {
  --red: #a6192e;
  --red-dark: #8a1526;
  --bg: hsl(180 52% 94%);
  --card: #fff;
  --border: hsl(180 30% 85%);
  --text: #1f2d2f;
  --muted: #5b6b6e;
  --amber-bg: #fff6e0;
  --amber: #8a5a00;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(20 50 50 / 0.06), 0 8px 24px -16px rgb(20 50 50 / 0.25);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font: 15px/1.5 Inter, system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--text); background: var(--bg); min-height: 100vh; }
h1 { font-size: 20px; margin: 0 0 4px; font-weight: 600; }
h2 { font-size: 16px; margin: 0 0 10px; font-weight: 600; }
.hint { font-size: 13px; color: var(--muted); margin: 0 0 14px; }

.top { background: var(--card); border-bottom: 1px solid var(--border); }
.top-inner { max-width: 1280px; margin: 0 auto; padding: 0 16px; height: 56px; display: flex; align-items: center; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 15px; }
.brand img { border-radius: 6px; }

.layout { max-width: 1280px; margin: 0 auto; padding: 20px 16px 40px; display: grid; grid-template-columns: minmax(0, 440px) minmax(0, 1fr); gap: 20px; align-items: start; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }

fieldset { border: 0; padding: 0; margin: 0 0 16px; }
legend { font-weight: 600; font-size: 14px; margin-bottom: 8px; padding: 0; }
label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 10px; }
.opt { font-weight: 400; color: var(--muted); }
input:not([type=radio]) { display: block; width: 100%; margin-top: 4px; font: inherit; font-size: 14px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text); }
input:focus { outline: 2px solid var(--red); outline-offset: 1px; border-color: transparent; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.kinds { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.chip { display: inline-flex; align-items: center; gap: 6px; margin: 0; padding: 6px 12px; border: 1px solid var(--border); border-radius: 999px; cursor: pointer; font-size: 13px; }
.chip:has(input:checked) { border-color: var(--red); background: #fbeef0; color: var(--red-dark); }
.chip input { accent-color: var(--red); margin: 0; }

.missing { background: var(--amber-bg); color: var(--amber); font-size: 13px; padding: 10px 12px; border-radius: 8px; margin: 0 0 14px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.btn { font: inherit; font-size: 14px; font-weight: 600; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--border); background: #fff; color: var(--text); cursor: pointer; }
.btn:hover { border-color: var(--red); }
.btn.primary { background: var(--red); border-color: var(--red); color: #fff; }
.btn.primary:hover { background: var(--red-dark); }
.btn.ghost { border-color: transparent; color: var(--muted); }
.status { font-size: 13px; color: var(--muted); min-height: 20px; margin: 10px 0 0; }

.preview-card { padding: 16px; position: sticky; top: 16px; }
#preview { width: 100%; height: calc(100vh - 120px); min-height: 520px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .preview-card { position: static; }
  #preview { height: 70vh; }
}
@media (max-width: 480px) { .pair { grid-template-columns: 1fr; } }