:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --ink: #1e293b;
  --sub: #64748b;
  --accent: #0d9488;
  --accent-dark: #0f766e;
  --border: #e2e8f0;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

header h1 {
  font-size: 28px;
  margin: 0 0 8px;
}

header .sub {
  color: var(--sub);
  margin: 0 0 24px;
  line-height: 1.5;
}

.feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.feature-icon {
  font-size: 20px;
  line-height: 1;
}

.feature-card strong {
  display: block;
  font-size: 13px;
  margin-bottom: 2px;
}

.feature-card p {
  margin: 0;
  font-size: 12px;
  color: var(--sub);
  line-height: 1.4;
}

@media (max-width: 640px) {
  .feature-row { grid-template-columns: 1fr; }
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.drop-zone.drag-over {
  border-color: var(--accent);
  background: #f0fdfa;
}

.drop-icon {
  font-size: 32px;
  color: var(--accent);
  margin-bottom: 8px;
}

.drop-inner p { margin: 4px 0; }

.hint { color: var(--sub); font-size: 13px; }

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  font-size: inherit;
  text-decoration: underline;
}

.status-box {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.status-box.info {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.panel {
  margin-top: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.panel h2 {
  font-size: 16px;
  margin: 0 0 16px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.panel-head h2 { margin: 0; }

.count-badge {
  background: #f0fdfa;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
}

.word-list {
  max-height: 220px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}

.word-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.word-row .en { font-weight: 600; }
.word-row .az { color: var(--accent-dark); }
.word-row .meaning { grid-column: 1 / -1; color: var(--sub); font-size: 13px; }

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.settings-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--sub);
}

.settings-grid select,
.settings-grid input[type="range"] {
  accent-color: var(--accent);
}

.checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 8px !important;
}

.est-duration {
  margin: 16px 0 0;
  font-size: 13px;
  color: var(--sub);
}

.canvas-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
}

#stage {
  width: 100%;
  height: 100%;
  display: block;
}

.controls {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover { background: var(--accent-dark); }

.btn.secondary {
  background: #f1f5f9;
  color: var(--ink);
}

.btn.secondary:hover { background: #e2e8f0; }

.btn:disabled {
  opacity: .5;
  cursor: not-allowed;
}

.progress-wrap {
  margin-top: 16px;
}

.progress-bar {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width .1s linear;
}

.progress-label {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--sub);
}

.download-box {
  margin-top: 16px;
  display: flex;
  gap: 12px;
}

.format-help {
  margin-top: 20px;
}

.format-intro {
  color: var(--sub);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 18px;
}

.field-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 13px;
}

.field-table th,
.field-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.field-table th {
  color: var(--sub);
  font-weight: 600;
  font-size: 12px;
}

.field-table td code {
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
}

.format-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--sub);
  margin: 0 0 8px;
}

.format-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}

.format-tab {
  background: #f1f5f9;
  border: none;
  color: var(--sub);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
}

.format-tab.active {
  background: var(--accent);
  color: #fff;
}

.code-block {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 16px 18px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}

.format-note {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--sub);
}

footer {
  margin-top: 40px;
  text-align: center;
  color: var(--sub);
  font-size: 12px;
}

.hidden { display: none !important; }