:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --panel-2: #f0f2f5;
  --border: #e3e7ec;
  --text: #1f2937;
  --muted: #6b7280;
  --accent: #16a37a;
  --accent-dark: #0f8563;
  --accent-2: #2f9e44;
  --danger: #e0393e;
  --warn: #d98324;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
header {
  padding: 18px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
header .logo { font-weight: 800; font-size: 20px; }
header .logo a { color: inherit; text-decoration: none; }
header .logo span { color: var(--accent); }
header .tagline { color: var(--muted); font-size: 13px; max-width: 480px; }
main { max-width: 880px; margin: 0 auto; padding: 24px 16px 60px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
}
.card h2 { margin: 0 0 6px; font-size: 17px; }
.card h3 { margin: 16px 0 4px; font-size: 14px; }
.muted { color: var(--muted); font-size: 13px; margin: 0 0 12px; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.intro {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  max-width: 720px;
  margin: 0 0 20px;
}

#langSwitcher a {
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
}
#langSwitcher a:hover { color: var(--accent); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.chip {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 12px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.chip button {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  font-size: 15px;
  line-height: 1;
}
.chip button:hover { color: var(--danger); }

.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
input[type="text"] {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  min-width: 220px;
  flex: 1;
}
input[type="text"]:focus { outline: none; border-color: var(--accent); }

button {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 500;
}
button:hover { border-color: var(--accent); color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
button.export { background: var(--accent-2); border-color: var(--accent-2); color: #fff; font-weight: 600; }
button.export:hover { color: #fff; opacity: 0.9; }

#dropzone {
  border: 2px dashed #c9d0d8;
  border-radius: 14px;
  padding: 44px 24px;
  text-align: center;
  cursor: pointer;
  background: var(--panel-2);
  transition: border-color .15s, background .15s;
}
#dropzone:hover { border-color: var(--accent); }
#dropzone.drag { border-color: var(--accent); background: #e9f8f2; }
#dropzone .big { font-size: 16px; font-weight: 600; color: var(--text); margin: 0 0 6px; }
#fileInput { display: none; }

#fileList { margin-top: 12px; font-size: 13px; }
.file-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.file-row:last-child { border-bottom: none; }
.badge {
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 10px;
  background: var(--panel-2);
  color: var(--muted);
  white-space: nowrap;
}
.badge.auto { background: #e6f7ef; color: var(--accent-dark); }
.badge.manual { background: #fdf1e2; color: var(--warn); }

#mappingRows { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.map-row { display: flex; align-items: center; gap: 10px; font-size: 13px; flex-wrap: wrap; }
.map-row .target { width: 160px; font-weight: 600; flex-shrink: 0; }
select {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 10px;
  font-size: 14px;
  flex: 1;
  min-width: 160px;
}

.stats-row { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.stat {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  flex: 1;
  min-width: 110px;
}
.stat .n { font-size: 22px; font-weight: 700; color: var(--accent-dark); }
.stat .l { font-size: 12px; color: var(--muted); }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }

.table-wrap {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: auto;
  max-height: 420px;
  background: var(--panel);
}
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
}
th {
  background: var(--panel-2);
  position: sticky;
  top: 0;
  color: var(--muted);
  font-weight: 600;
}
tr.dup td { background: #fdecec; }

#templateList .tmpl-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
}
#templateList .tmpl-row:last-child { border-bottom: none; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 30px 20px;
}
footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }

/* ---------- Mobile ---------- */
@media (max-width: 640px) {
  header { padding: 14px 16px; }
  header .tagline { display: none; }
  main { padding: 16px 12px 40px; }
  .card { padding: 16px 16px; border-radius: 12px; }
  .card h2 { font-size: 15px; }
  #dropzone { padding: 32px 16px; }
  .row { flex-direction: column; align-items: stretch; }
  .row input[type="text"] { min-width: 0; width: 100%; }
  .row button { width: 100%; }
  .map-row { flex-direction: column; align-items: stretch; gap: 4px; }
  .map-row .target { width: auto; }
  select { width: 100%; }
  .toolbar { flex-direction: column; }
  .toolbar button { width: 100%; }
  .stat { min-width: 100%; }
  th, td { max-width: 140px; }
}