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

:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #eef2ff;
  --secondary: #64748b;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --bg: #f8fafc;
  --panel: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-light: #64748b;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --radius: 10px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.app-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 24px 32px;
  box-shadow: var(--shadow-lg);
  flex-shrink: 0;
}
.header-content { max-width: 1920px; margin: 0 auto; }
.app-header h1 { font-size: 24px; font-weight: 700; }
.subtitle { opacity: 0.9; font-size: 14px; margin-top: 4px; }

.app-main {
  display: grid;
  grid-template-columns: 320px 1fr 480px;
  gap: 20px;
  padding: 20px;
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.sidebar, .main-content, .preview-panel { max-height: 100%; overflow-y: auto; }
.main-content { min-height: 0; }

.panel {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}
.panel h2 { font-size: 16px; font-weight: 600; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.panel h3 { font-size: 14px; font-weight: 600; margin-bottom: 12px; }
.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.panel-header h2 { margin-bottom: 0; }
.hint { font-size: 12px; color: var(--text-light); margin-bottom: 12px; padding: 8px 12px; background: var(--primary-light); border-radius: 6px; }

/* Mode Buttons */
.mode-selector { display: flex; flex-direction: column; gap: 8px; }
.mode-btn {
  text-align: left;
  padding: 12px 14px;
  background: #f1f5f9;
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.mode-btn:hover { background: var(--primary-light); }
.mode-btn.active {
  background: var(--primary-light);
  border-color: var(--primary);
}
.mode-btn strong { display: block; color: var(--primary); font-size: 14px; }
.mode-btn span { font-size: 12px; color: var(--text-light); }

/* Upload */
.upload-area {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 12px;
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}
.upload-icon { font-size: 36px; margin-bottom: 8px; }
.upload-hint { font-size: 12px; color: var(--text-light); margin-top: 4px; }
.uploaded-files { display: flex; flex-direction: column; gap: 8px; }
.uploaded-file {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: #f8fafc;
  border-radius: 6px;
  font-size: 12px;
  border: 1px solid var(--border);
}
.uploaded-file .file-icon { font-size: 18px; }
.uploaded-file .file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uploaded-file .file-type-tag {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 600;
}
.uploaded-file .file-type-tag.image { background: #dcfce7; color: #166534; }
.uploaded-file .file-type-tag.video { background: #dbeafe; color: #1e40af; }
.uploaded-file .file-type-tag.audio { background: #fef3c7; color: #92400e; }
.uploaded-file .remove-file {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
}

/* Forms */
.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}
.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  transition: border-color 0.2s;
  background: white;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.checkbox-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 8px;
  background: #f8fafc;
  border-radius: 6px;
}
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 400;
  cursor: pointer;
  margin: 0;
}
.checkbox-group input { margin: 0; }

/* Buttons */
.btn-primary, .btn-secondary, .btn-danger, .btn-sm {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-family: inherit;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: #f1f5f9; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #e2e8f0; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Tabs */
.tabs {
  display: flex;
  gap: 2px;
  background: #e2e8f0;
  padding: 4px;
  border-radius: 8px;
  margin-bottom: 16px;
}
.tab-btn {
  flex: 1;
  padding: 10px 12px;
  background: none;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-light);
  font-family: inherit;
  transition: all 0.2s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { background: white; color: var(--text); box-shadow: var(--shadow); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Shots */
.shot-item {
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
  position: relative;
}
.shot-item.shot-1 { border-left: 4px solid var(--primary); }
.shot-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.shot-title { font-weight: 600; font-size: 14px; }
.shot-actions { display: flex; gap: 6px; }
.shot-item .form-group label { font-size: 12px; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }

.inline-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  padding: 10px;
  background: white;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.inline-row label { font-size: 12px; font-weight: 500; min-width: 60px; }
.inline-row select, .inline-row input { flex: 1; padding: 6px 8px; border: 1px solid var(--border); border-radius: 4px; font-size: 12px; }
.remove-inline { background: var(--danger); color: white; border: none; padding: 4px 8px; border-radius: 4px; cursor: pointer; font-size: 12px; }
.add-inline-btn { background: none; border: 1px dashed var(--primary); color: var(--primary); padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 12px; width: 100%; }

/* Speakers */
.speaker-item, .ref-item {
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 10px;
}
.speaker-header, .ref-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.speaker-id-tag, .ref-id-tag {
  background: var(--primary);
  color: white;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

/* Preview */
.prompt-preview {
  background: #0f172a;
  color: #e2e8f0;
  padding: 16px;
  border-radius: 8px;
  font-family: "SF Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 60vh;
  overflow-y: auto;
  border: 1px solid #1e293b;
}
.empty-preview {
  color: #64748b;
  font-style: italic;
  text-align: center;
  padding: 40px 20px;
}
.btn-secondary.active {
  background: #1677ff;
  color: white;
  border-color: #1677ff;
}
.lib-select {
  width: 100%;
  margin-bottom: 4px;
  font-size: 12px;
  padding: 4px 8px;
  border: 1px dashed #94a3b8;
  border-radius: 4px;
  background: #f8fafc;
  color: #475569;
  cursor: pointer;
}
.lib-select:hover { border-color: #64748b; background: #f1f5f9; }

/* 模板选择下拉 */
#templateSelect {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  margin-top: 8px;
  padding: 9px 32px 9px 34px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  font-weight: 500;
  color: var(--text);
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236366f1' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E"), linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
  background-repeat: no-repeat;
  background-position: right 12px center, 0 0;
  background-size: 12px 8px, 100% 100%;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.04);
}
#templateSelect:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
}
#templateSelect:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
#templateSelect:invalid,
#templateSelect option[value=""] { color: var(--text-light); }

/* allowClear 可清空输入框 */
.allow-clear-wrap { position: relative; width: 100%; display: flex; }
.allow-clear-wrap > input,
.allow-clear-wrap > textarea { width: 100%; padding-right: 30px; }
.allow-clear-btn {
  position: absolute;
  right: 9px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #cbd5e1;
  color: #fff;
  font-size: 12px;
  line-height: 15px;
  text-align: center;
  cursor: pointer;
  user-select: none;
  display: none;
  z-index: 2;
  transition: background 0.15s;
}
.allow-clear-wrap.is-textarea .allow-clear-btn { top: 8px; }
.allow-clear-wrap:not(.is-textarea) .allow-clear-btn { top: 50%; transform: translateY(-50%); }
.allow-clear-wrap.has-val .allow-clear-btn { display: block; }

/* ===== 变量选择器（编辑输入框按 Alt 唤起）===== */
#varPicker {
  display: none;
  position: fixed;
  z-index: 3000;
  width: 340px;
  max-width: calc(100vw - 16px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
#varPicker.open { display: block; }
.var-picker-head {
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-light);
  background: var(--primary-light);
  border-bottom: 1px solid var(--border);
}
.var-picker-search {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 8px 12px;
  font-size: 13px;
  outline: none;
  background: var(--panel);
  color: var(--text);
}
.var-picker-list {
  list-style: none;
  max-height: 260px;
  overflow-y: auto;
}
.var-picker-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 13px;
}
.var-picker-list li:hover { background: var(--bg); }
.var-picker-list li.active { background: var(--primary-light); }
.var-picker-list li code {
  font-family: Consolas, Monaco, monospace;
  font-size: 12.5px;
  color: var(--primary-hover);
  background: var(--primary-light);
  padding: 1px 6px;
  border-radius: 5px;
  white-space: nowrap;
}
.var-picker-list li.active code { background: #fff; }
.var-picker-list li span {
  color: var(--text-light);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.var-picker-list li.var-picker-empty {
  justify-content: center;
  color: var(--text-light);
  cursor: default;
  padding: 14px 12px;
}
.var-picker-foot {
  padding: 6px 12px;
  font-size: 11px;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.allow-clear-btn:hover { background: #94a3b8; }

/* 腾讯云翻译设置面板 */
.tmt-settings { margin-top: 14px; border-top: 1px dashed var(--border); padding-top: 10px; }
.tmt-settings summary { cursor: pointer; font-size: 12px; font-weight: 500; color: var(--primary); padding: 4px 0; }
.tmt-settings input[type="password"] {
  width: 100%;
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  font-family: monospace;
}
.tmt-settings input[type="password"]:focus { outline: none; border-color: var(--primary); }
.tmt-enable-row { display: flex; align-items: center; gap: 6px; margin-top: 8px; font-size: 12px; cursor: pointer; }
.tmt-btn-row { display: flex; gap: 8px; margin-top: 10px; }
.tmt-btn-row .btn-secondary { flex: 1; font-size: 12px; padding: 6px 8px; }
.tmt-settings .hint { font-size: 11px; color: var(--text-light); margin-top: 8px; line-height: 1.5; }
.panel details { margin-bottom: 8px; }
.panel summary { cursor: pointer; font-size: 12px; font-weight: 500; padding: 6px 0; color: var(--primary); }
.panel pre {
  background: #f8fafc;
  padding: 10px;
  border-radius: 6px;
  font-size: 11px;
  overflow-x: auto;
  margin-top: 6px;
  border: 1px solid var(--border);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #1e293b;
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
  pointer-events: none;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* Retention */
.retention-item {
  display: grid;
  grid-template-columns: 140px 140px 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  padding: 8px 10px;
  background: #f8fafc;
  border-radius: 6px;
  font-size: 12px;
}
.retention-item select, .retention-item input {
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 12px;
  background: white;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Responsive */
@media (max-width: 1400px) {
  .app-main { grid-template-columns: 280px 1fr 420px; }
}
@media (max-width: 1100px) {
  body { height: auto; overflow: auto; }
  .app-main { grid-template-columns: 1fr; overflow: visible; }
  .sidebar, .main-content, .preview-panel { max-height: none; overflow: visible; }
}