* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0f0f0f;
  --surface: #1a1a1a;
  --surface2: #242424;
  --border: #333;
  --text: #e5e5e5;
  --text2: #999;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #eab308;
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}

header h1 { font-size: 18px; font-weight: 600; }

#settings-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text2);
  font-size: 18px;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  cursor: pointer;
}
#settings-btn:hover { color: var(--text); border-color: var(--text2); }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal.hidden { display: none; }
.modal-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 420px;
  max-width: 90vw;
}
.modal-content h2 { margin-bottom: 16px; font-size: 16px; }
.modal-content label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--text2); }
.modal-content input[type="text"] {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 8px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}
.modal-content .hint { color: var(--text2); font-size: 11px; }
.modal-actions { display: flex; gap: 8px; margin-top: 16px; justify-content: flex-end; }

/* Steps nav */
#steps {
  display: flex;
  gap: 2px;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
}
.step {
  flex: 1;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text2);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.step:hover { background: var(--surface2); }
.step.active { border-color: var(--accent); color: var(--text); }
.step.done { border-color: var(--green); }
.step .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--surface2);
  font-size: 12px;
  font-weight: 600;
}
.step.active .num { background: var(--accent); color: #fff; }
.step.done .num { background: var(--green); color: #fff; }

/* Main content */
main { padding: 24px; max-width: 900px; margin: 0 auto; }

.panel { animation: fadeIn 0.2s ease; }
.panel.hidden { display: none; }
.panel h2 { font-size: 16px; margin-bottom: 4px; }
.panel .desc { font-size: 13px; color: var(--text2); margin-bottom: 20px; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Buttons */
button {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  transition: all 0.15s;
}
button:hover { background: var(--border); }
button:disabled { opacity: 0.4; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { background: var(--accent-hover); }
button.secondary { background: transparent; }
button.small { padding: 4px 10px; font-size: 12px; }
.link { color: var(--accent); cursor: pointer; text-decoration: underline; }

/* Drop zone */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  color: var(--text2);
  transition: all 0.2s;
}
.drop-zone.dragover { border-color: var(--accent); background: rgba(99,102,241,0.05); }

#upload-info {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text2);
  display: flex;
  align-items: center;
  gap: 8px;
}

#caption-controls { margin-top: 16px; display: flex; gap: 8px; }

/* Progress */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 16px;
}
.bar {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.3s ease;
  width: 0%;
}
.bar.indeterminate {
  width: 30%;
  animation: indeterminate 1.5s infinite ease-in-out;
}
@keyframes indeterminate {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

#caption-progress, #prepare-progress, #gen-progress {
  margin-top: 12px;
}
#caption-progress span, #prepare-status, #gen-status {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--text2);
}

/* Caption list */
.caption-list {
  margin-top: 16px;
  max-height: 300px;
  overflow-y: auto;
}
.caption-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.caption-item .name {
  min-width: 120px;
  font-weight: 500;
  color: var(--text2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.caption-item .text { color: var(--text); line-height: 1.4; }

#download-captions { margin-top: 16px; }

/* Prepare */
#prepare-info { font-size: 14px; line-height: 1.8; margin-bottom: 16px; }
#prepare-info strong { color: var(--text); }
#prepare-result { margin-top: 16px; font-size: 14px; }

/* Train */
.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--surface2);
  color: var(--text2);
}
.status-badge.starting { background: #422006; color: var(--yellow); }
.status-badge.processing { background: #172554; color: #60a5fa; }
.status-badge.succeeded { background: #052e16; color: var(--green); }
.status-badge.failed { background: #450a0a; color: var(--red); }

.logs {
  margin-top: 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  max-height: 250px;
  overflow-y: auto;
  white-space: pre-wrap;
  color: var(--text2);
}

#train-result { margin-top: 16px; font-size: 14px; }
#train-result code {
  background: var(--surface2);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 13px;
}

/* Generate */
.generate-form label { display: block; font-size: 13px; color: var(--text2); margin-bottom: 12px; }
.generate-form textarea {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  resize: vertical;
}
.generate-form select {
  margin-top: 4px;
  padding: 6px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}
.row { display: flex; gap: 24px; align-items: flex-end; flex-wrap: wrap; }
.checkbox-label {
  display: flex !important;
  align-items: center;
  gap: 6px;
  flex-direction: row !important;
  padding-bottom: 6px;
}
.checkbox-label input { width: 16px; height: 16px; }

#start-generate { margin-top: 8px; }

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 20px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 1;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-item .overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}
.gallery-item:hover .overlay { opacity: 1; }
.gallery-item .overlay button { background: white; color: black; border: none; }

#download-all { margin-top: 16px; }

.hidden { display: none !important; }