:root {
  --ink: #16181d;
  --muted: #5b6270;
  --line: #e2e5ea;
  --bg: #fbfbfc;
  --accent: #1f4fd8;
  --accent-ink: #fff;
  --warn-bg: #fff8e6;
  --warn-line: #e8cf87;
  --ok: #17784a;
  --skip: #8a6d1a;
  --err: #b3261e;
  --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 40px 20px 80px; }
.hero h1 { font-size: 30px; margin: 0 0 8px; letter-spacing: -0.01em; }
.hero .sub { color: var(--muted); margin: 0 0 28px; }
.hero .sub strong { color: var(--ink); }

.panel { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 8px; }
.dropzone {
  border: 2px dashed var(--line); border-radius: var(--radius);
  padding: 34px 20px; text-align: center; transition: border-color .15s, background .15s;
}
.dropzone.over { border-color: var(--accent); background: #f2f5ff; }
.dz-title { font-size: 18px; font-weight: 600; margin: 0 0 4px; }
.dz-sub { color: var(--muted); margin: 0 0 18px; font-size: 14px; }
.pickers { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.picker { position: relative; overflow: hidden; display: inline-block; }
.picker input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.picker span {
  display: inline-block; padding: 9px 16px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; font-size: 14px; font-weight: 500; cursor: pointer;
}
.picker span:hover { border-color: #b9c0cc; }
.picked { color: var(--muted); font-size: 13px; margin: 16px 0 0; }

.actions { display: flex; align-items: center; gap: 14px; padding: 14px 8px 6px; flex-wrap: wrap; }
button {
  font: inherit; cursor: pointer; border-radius: 8px; border: 1px solid var(--line);
  background: #fff; padding: 9px 16px; font-weight: 500;
}
button:disabled { opacity: .5; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.primary:hover:not(:disabled) { background: #1a44bd; }
button.danger { background: #fff; color: var(--err); border-color: #e6b7b3; }
button.danger:hover { background: #fdefee; }
.status { color: var(--muted); font-size: 14px; }
body.busy { cursor: progress; }

.clear-warning { margin-top: 22px; }
.warn-inner {
  display: flex; align-items: center; gap: 14px;
  background: var(--warn-bg); border: 1px solid var(--warn-line);
  border-radius: var(--radius); padding: 14px 16px;
}
.warn-icon { font-size: 22px; }
.warn-inner p { margin: 0; }
.warn-sub { color: var(--muted); font-size: 13px; margin-top: 3px !important; }
.warn-inner .danger { margin-left: auto; white-space: nowrap; }

.results { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.results-bar, .log-bar { display: flex; gap: 10px; flex-wrap: wrap; }
.result {
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 14px 16px;
}
.result.skipped { background: #fffdf5; }
.result.error { background: #fdf3f2; }
.result-head { display: flex; align-items: center; gap: 10px; }
.result-name { font-weight: 600; word-break: break-all; }
.badge { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; padding: 2px 8px; border-radius: 999px; margin-left: auto; }
.badge.ok { background: #e6f4ec; color: var(--ok); }
.badge.skipped { background: #fbf1d6; color: var(--skip); }
.badge.error { background: #f7dedb; color: var(--err); }
.result-meta { color: var(--muted); font-size: 13px; margin-top: 6px; }
.result-warn { color: var(--skip); font-size: 13px; margin-top: 8px; }
.download {
  display: inline-block; margin-top: 12px; padding: 8px 14px; border-radius: 8px;
  background: var(--accent); color: #fff; text-decoration: none; font-size: 14px; font-weight: 500;
}
.download:hover { background: #1a44bd; }
.log-bar button { font-size: 13px; }

/* post-conversion survey */
.survey {
  margin-top: 24px; border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: 20px 20px 22px;
}
.survey-title { margin: 0 0 4px; font-size: 18px; }
.survey-sub { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
.survey-q { border: 0; margin: 0 0 16px; padding: 0; }
.survey-q legend { font-weight: 600; font-size: 14px; padding: 0; margin: 0 0 8px; }
.survey-q label {
  display: flex; align-items: center; gap: 8px; font-size: 14px;
  padding: 6px 0; cursor: pointer; line-height: 1.3;
}
.survey-q input[type="radio"] { flex: 0 0 auto; width: 16px; height: 16px; margin: 0; accent-color: var(--accent); }
.survey-text { display: block; font-size: 14px; font-weight: 600; margin: 4px 0 0; }
.survey-text textarea {
  display: block; width: 100%; margin-top: 6px; padding: 9px 11px; font: inherit; font-size: 14px;
  border: 1px solid var(--line); border-radius: 8px; resize: vertical; font-weight: 400;
}
.survey-text textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.survey-actions { display: flex; align-items: center; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.survey-msg { color: var(--err); font-size: 13px; }
.survey-thanks p { margin: 0; }

.foot { margin-top: 34px; color: var(--muted); font-size: 13px; }