:root {
  --bg: #0b0f19;
  --card: #111827;
  --border: #243244;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #60a5fa;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.srOnly {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.header {
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
}
.header { position: sticky; top: 0; z-index: 10; background: var(--bg); }
.header h1 { margin: 0 0 6px; font-size: 18px; }
.ver { font-size: 12px; color: var(--muted); font-weight: 600; margin-left: 6px; }
.sub { margin: 0; color: var(--muted); font-size: 13px; }

.headerTop {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.headerTitle { min-width: 200px; }
.headerControls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.langSelect { width: auto; min-width: 160px; }

.headerSticky {
  display: none;
  gap: 10px;
  padding-top: 12px;
}

.grid {
  display: grid;
  gap: 12px;
  padding: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 1200px) {
  .grid { grid-template-columns: 440px 1fr; }
  .controls { max-height: calc(100vh - var(--header-h, 120px) - 24px); overflow: auto; }
  .preview { height: calc(100vh - var(--header-h, 120px) - 64px); min-height: 520px; }
}

@media (min-width: 768px) and (max-width: 1199px) {
  .grid { grid-template-columns: 1fr; }
  .controls { position: fixed; top: 0; left: 0; bottom: 0; width: min(480px, 92vw); transform: translateX(-110%); z-index: 50; }
  body.drawerOpen .controls { transform: translateX(0); }
  .controlsToggle { display: inline-flex; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
}
.card h2 { margin: 0 0 10px; font-size: 15px; }
.card h3 { margin: 14px 0 8px; font-size: 14px; }

.wizard {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: #0b1220;
}
.wizard > summary {
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 0;
}
.wizard > summary::-webkit-details-marker { display: none; }
.wizard .hint { margin: 6px 0 0; color: var(--muted); font-size: 12px; }
.step { padding: 8px 0; }
.step + .step { border-top: 1px solid var(--border); }
.stepTitle { font-size: 13px; color: var(--text); margin: 0 0 6px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }

.badge {
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 999px;
  background: #0b1220;
}

.row {
  display: grid;
  grid-template-columns: 160px 1fr;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
}
.row.inline {
  grid-template-columns: 1fr;
  display: flex;
  gap: 16px;
}
label { color: var(--text); font-size: 13px; }
label[data-help] {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.infoBtn {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  font-size: 12px;
}
.infoBtn:hover { border-color: var(--accent); color: var(--text); }
.infoBtn:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
input, select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
}
hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 10px 0;
}

.check { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); }
.check input { width: auto; }

.actions {
  display: flex;
  gap: 10px;
  padding-top: 10px;
  flex-wrap: wrap;
}
button {
  appearance: none;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }
button:not(:disabled):hover { border-color: var(--accent); }

.ghostBtn { background: #0b1220; }
.primaryBtn { background: var(--accent); border-color: var(--accent); color: #0b0f19; }
.primaryBtn:disabled { opacity: 0.5; }

.controlsToggle { display: none; }

.status { color: var(--muted); font-size: 12px; margin: 10px 0 0; }
.download { display: inline-block; margin-top: 10px; color: var(--accent); text-decoration: none; }

.readout {
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0b1220;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.section > summary {
  cursor: pointer;
  list-style: none;
  padding: 6px 0;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}
.section > summary::-webkit-details-marker { display: none; }

.checklist {
  margin-top: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0b1220;
}
.checklistTitle { font-size: 12px; color: var(--text); font-weight: 600; margin-bottom: 6px; }
.checklistList { margin: 0 0 0 18px; padding: 0; color: var(--muted); font-size: 12px; }
.checklistList li { margin: 3px 0; }

.warnings {
  margin-top: 10px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0b1220;
  color: var(--text);
  font-size: 12px;
}
.warnings ul { margin: 6px 0 0 18px; padding: 0; }
.warnings li { margin: 2px 0; color: var(--muted); }

.preview {
  background: #0b1220;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 8px;
  min-height: 420px;
  overflow: auto;
}
.preview svg { max-width: 100%; height: auto; background: white; }

.previewBar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin: 8px 0 10px;
}
.previewBar button { padding: 6px 10px; border-radius: 10px; }

.hilite path { stroke: var(--accent) !important; }

.footer {
  color: var(--muted);
  font-size: 12px;
  padding: 10px 12px 18px;
}

.popover {
  position: fixed;
  z-index: 100;
  max-width: min(360px, calc(100vw - 24px));
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}
.popoverTitle { font-weight: 700; font-size: 13px; color: var(--text); margin: 0 0 6px; }
.popoverShort { font-size: 12px; color: var(--muted); margin: 0 0 8px; line-height: 1.35; }
.popoverSection { margin-top: 8px; }
.popoverSectionTitle { font-size: 12px; color: var(--text); font-weight: 600; margin: 0 0 4px; }
.popoverList { margin: 0 0 0 18px; padding: 0; color: var(--muted); font-size: 12px; }
.popoverList li { margin: 2px 0; }

.drawerOverlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(0,0,0,0.45);
}
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(420px, 92vw);
  z-index: 70;
  background: var(--card);
  border-left: 1px solid var(--border);
  padding: 12px;
  overflow: auto;
}
.drawerHeader { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.drawerTitle { font-weight: 700; }
.drawerTools { padding-top: 10px; }
.drawerSearch { width: 100%; }
.drawerBody { padding-top: 10px; }
.helpTopic { border: 1px solid var(--border); border-radius: 10px; padding: 10px; background: #0b1220; margin-bottom: 10px; }
.helpTopic h4 { margin: 0 0 6px; font-size: 13px; }
.helpTopic p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.35; }

.helpCategory {
  margin: 12px 0 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  opacity: 0.9;
}

.helpTopicBody { margin-top: 8px; }
.helpKeyMeta { color: var(--muted); font-size: 11px; margin-top: 2px; }

.faqItem { border: 1px solid var(--border); border-radius: 10px; padding: 10px; background: #0b1220; margin-bottom: 10px; }
.faqItem h4 { margin: 0 0 6px; font-size: 13px; }
.faqItem p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.4; }

.fitTools { margin-top: 10px; }

@media (max-width: 767px) {
  .header { padding: 12px; }
  .headerTop { flex-direction: column; align-items: stretch; }
  .langSelect { min-width: 100%; }
  .controlsToggle { display: none; }
  .headerSticky { display: flex; position: sticky; top: 0; z-index: 11; background: var(--bg); padding-bottom: 8px; }
  .headerSticky button { flex: 1; }
  .grid { padding: 10px; }
  .row { grid-template-columns: 1fr; }
  .row.inline { flex-direction: column; align-items: flex-start; }
  .preview { min-height: 55vh; }
}