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

:root {
  --bg: #0f1117;
  --bg2: #181c27;
  --bg3: #1e2335;
  --border: #2a2f45;
  --border-light: #353d5c;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --accent: #6c8ef7;
  --accent-dark: #4f6fe0;
  --success: #4ade80;
  --error: #f87171;
  --warning: #fbbf24;
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* Header */
.header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  position: sticky; top: 0; z-index: 100;
}
.header-inner { display: flex; align-items: center; gap: 16px; width: 100%; max-width: 960px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 22px; }
.logo-text { font-weight: 700; font-size: 16px; letter-spacing: -0.3px; }
.header-badge {
  margin-left: auto;
  background: rgba(108,142,247,0.15);
  color: var(--accent);
  border: 1px solid rgba(108,142,247,0.3);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
}

/* Main layout */
.main {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Card */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card.hidden { display: none; }

.card-header {
  padding: 16px 20px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.card-header h2 { font-size: 15px; font-weight: 600; flex: 1; }
.step-badge {
  width: 26px; height: 26px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
  flex-shrink: 0;
}
.card-body { padding: 20px; }

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.field-group { display: flex; flex-direction: column; gap: 5px; }
.field-group.full-width { grid-column: 1 / -1; }
label { font-size: 12px; font-weight: 500; color: var(--text-muted); }
.required { color: var(--error); }

input[type=text], input[type=password], input[type=url], select, textarea {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
  width: 100%;
  outline: none;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
.hint { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

.divider.full-width {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 4px;
}
.divider span { font-size: 11px; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: .5px; }

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  transition: all .2s;
  cursor: pointer;
}
.dropzone.drag-over {
  border-color: var(--accent);
  background: rgba(108,142,247,0.06);
}
.drop-icon { font-size: 36px; margin-bottom: 12px; }
.drop-text { font-size: 15px; font-weight: 500; margin-bottom: 6px; }
.drop-sub { color: var(--text-muted); margin-bottom: 12px; font-size: 13px; }
.drop-hint { font-size: 11px; color: var(--text-muted); margin-top: 10px; }

.btn-upload {
  background: var(--bg3);
  border: 1px solid var(--border-light);
  color: var(--text);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  transition: all .15s;
}
.btn-upload:hover { border-color: var(--accent); color: var(--accent); }

/* File list */
.file-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.file-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
}
.file-thumb {
  height: 64px;
  width: auto;
  max-width: 100px;
  object-fit: contain;
  border-radius: 8px;
  flex-shrink: 0;
  background: var(--bg);
  border: 1px solid var(--border);
}
.file-item .file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-item .file-size { color: var(--text-muted); font-size: 11px; flex-shrink: 0; }
.file-type-select {
  flex-shrink: 0;
  width: 200px;
  background: var(--bg2);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  color: var(--text);
  font-size: 11px;
  padding: 4px 6px;
}
@media (max-width: 600px) {
  .file-item { flex-wrap: wrap; }
  .file-type-select { width: 100%; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--bg3);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: white; }
.btn-success { background: rgba(74,222,128,0.15); border-color: var(--success); color: var(--success); }
.btn-success:hover { background: rgba(74,222,128,0.25); }
.btn-secondary { background: var(--bg3); }
.btn-lg { padding: 12px 28px; font-size: 15px; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-icon { font-size: 15px; line-height: 1; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

.upload-actions, .process-actions, .output-actions {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  align-items: center;
}

/* Progress */
.progress-bar-wrap {
  flex: 1;
  height: 6px;
  background: var(--bg);
  border-radius: 3px;
  overflow: hidden;
  min-width: 80px;
}
.progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width .3s ease;
  width: 0%;
}
.progress-label { font-size: 12px; color: var(--text-muted); flex-shrink: 0; }

/* Status msg */
.status-msg {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 14px;
  background: rgba(108,142,247,0.08);
  border: 1px solid rgba(108,142,247,0.2);
  color: var(--accent);
}
.status-msg.error { background: rgba(248,113,113,0.08); border-color: rgba(248,113,113,0.2); color: var(--error); }
.status-msg.success { background: rgba(74,222,128,0.08); border-color: rgba(74,222,128,0.2); color: var(--success); }
.status-msg:empty { display: none; }

/* Table toolbar */
.table-toolbar {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 12px;
}
.table-count { flex: 1; font-size: 12px; color: var(--text-muted); }

/* Meta rows (accordion) */
.meta-row {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  overflow: hidden;
}
.meta-row-thumb {
  width: 36px; height: 36px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
  background: var(--bg);
  border: 1px solid var(--border);
}
.meta-row-content {
  display: flex;
  gap: 14px;
}
.meta-row-thumb-large {
  width: 140px; height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg);
}
.meta-row-content .meta-fields-grid { flex: 1; }
@media (max-width: 600px) {
  .meta-row-content { flex-direction: column; }
  .meta-row-thumb-large { width: 100%; height: 180px; }
}
.meta-row-header {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  background: var(--bg3);
  user-select: none;
  transition: background .15s;
}
.meta-row-header:hover { background: var(--bg); }
.meta-row-status { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.meta-row-status.ok { background: var(--success); }
.meta-row-status.warn { background: var(--warning); }
.meta-row-status.err { background: var(--error); }
.meta-row-name { flex: 1; font-size: 13px; font-weight: 500; }
.meta-row-preview { font-size: 11px; color: var(--text-muted); max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meta-row-cost {
  font-size: 11px;
  color: var(--accent);
  background: rgba(108,142,247,0.1);
  padding: 2px 8px;
  border-radius: 10px;
  flex-shrink: 0;
  white-space: nowrap;
}
.meta-row-chevron { color: var(--text-muted); font-size: 11px; transition: transform .2s; }
.meta-row.open .meta-row-chevron { transform: rotate(180deg); }

.meta-row-body {
  display: none;
  padding: 14px;
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
.meta-row.open .meta-row-body { display: block; }

.meta-fields-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.meta-field { display: flex; flex-direction: column; gap: 4px; }
.meta-field.full { grid-column: 1 / -1; }
.meta-field label { font-size: 11px; color: var(--text-muted); font-weight: 500; display: flex; justify-content: space-between; }
.meta-field .char-count { font-size: 10px; color: var(--text-muted); }
.meta-field .char-count.warn { color: var(--warning); }
.meta-field input, .meta-field textarea {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 12px;
  width: 100%;
  outline: none;
}
.meta-field input:focus, .meta-field textarea:focus { border-color: var(--accent); }
.meta-field textarea { min-height: 60px; resize: vertical; line-height: 1.7; }

/* Tag input for Subject */
.tag-input {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  min-height: 38px;
}
.tag-input:focus-within { border-color: var(--accent); }
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(108,142,247,0.15);
  color: var(--accent);
  border: 1px solid rgba(108,142,247,0.3);
  border-radius: 14px;
  padding: 3px 8px 3px 10px;
  font-size: 12px;
  white-space: nowrap;
}
.tag-remove {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 11px;
  padding: 0;
  line-height: 1;
  opacity: 0.7;
}
.tag-remove:hover { opacity: 1; color: var(--error); }
.tag-input-field {
  flex: 1 1 80px;
  min-width: 80px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 12px;
  padding: 4px;
  outline: none;
}

.error-note {
  background: rgba(248,113,113,0.08);
  border: 1px solid rgba(248,113,113,0.2);
  color: var(--error);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 11px;
  margin-bottom: 10px;
}

/* Output summary */
.output-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
  margin-bottom: 16px;
}
.output-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 12px;
}
.output-item.success { border-color: rgba(74,222,128,0.3); }
.output-item.fail { border-color: rgba(248,113,113,0.3); color: var(--error); }

.hidden { display: none !important; }

/* Collapsible (details/summary) */
.collapsible {
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.collapsible summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  user-select: none;
}
.collapsible summary::-webkit-details-marker { display: none; }
.collapsible-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.collapsible-chevron {
  color: var(--text-muted);
  font-size: 11px;
  transition: transform .2s;
  flex-shrink: 0;
}
.collapsible[open] .collapsible-chevron { transform: rotate(180deg); }
.collapsible[open] summary .collapsible-title { color: var(--text); }
.collapsible-body { margin-top: 14px; }

/* Hints editor */
.hint-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  width: 100%;
}
.hint-row input.hint-label {
  width: 220px;
  min-width: 220px;
  max-width: 220px;
  flex-shrink: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 500;
}
.hint-row textarea.hint-text {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
  min-height: 44px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font-size: 12px;
  resize: vertical;
}
.hint-label:focus, .hint-text:focus { border-color: var(--accent); outline: none; }
.btn-remove-hint {
  flex-shrink: 0;
  padding: 6px 10px;
  color: var(--error);
  border-color: rgba(248,113,113,0.3);
}
.btn-remove-hint:hover { background: rgba(248,113,113,0.1); border-color: var(--error); }
.hints-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}
.hints-save-status { font-size: 12px; color: var(--text-muted); }
.btn-upload-inline {
  display: inline-flex; align-items: center; gap: 6px;
  cursor: pointer;
}
@media (max-width: 600px) {
  .hint-row { flex-direction: column; }
  .hint-label { width: 100%; }
}

@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
  .meta-fields-grid { grid-template-columns: 1fr; }
  .meta-row-preview { display: none; }
}