/* ============================================================
   CSS 变量 & 主题
   ============================================================ */
:root {
  --bg: #f5f7fa;
  --card-bg: #fff;
  --card-border: rgba(0, 0, 0, 0.06);
  --card-shadow: 0 1px 3px rgba(0,0,0,0.1);
  --text: #222;
  --text-secondary: #333;
  --text-muted: #555;
  --border: #ddd;
  --input-bg: #fff;
  --input-text: #333;
  --log-bg: #1e1e1e;
  --log-color: #d4d4d4;
  --file-info-bg: #e8f4ff;
  --progress-bg: #f0f7ff;
  --progress-color: #165dff;
  --history-border: #eee;
  --tag-ok-bg: #dcfce7;
  --tag-ok-text: #166534;
  --tag-fail-bg: #fee2e2;
  --tag-fail-text: #991b1b;
  --btn-primary: #409eff;
  --btn-primary-hover: #337ecc;
  --btn-sm-bg: #f0f0f0;
  --btn-sm-text: #555;
  --btn-sm-hover: #e0e0e0;
}

[data-theme="dark"] {
  --bg: #1a1a2e;
  --card-bg: #16213e;
  --card-border: rgba(255, 255, 255, 0.06);
  --card-shadow: 0 1px 3px rgba(0,0,0,0.4);
  --text: #e0e0e0;
  --text-secondary: #ccc;
  --text-muted: #999;
  --border: #333;
  --input-bg: #0f3460;
  --input-text: #e0e0e0;
  --log-bg: #0d1117;
  --log-color: #c9d1d9;
  --file-info-bg: #1a3a5c;
  --progress-bg: #1a3a5c;
  --progress-color: #7cb8ff;
  --history-border: #2a2a4a;
  --tag-ok-bg: #1a3a2a;
  --tag-ok-text: #4ade80;
  --tag-fail-bg: #3a1a1a;
  --tag-fail-text: #f87171;
  --btn-primary: #409eff;
  --btn-primary-hover: #337ecc;
  --btn-sm-bg: #2a2a4a;
  --btn-sm-text: #ccc;
  --btn-sm-hover: #3a3a5a;
}

/* ============================================================
   全局
   ============================================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
body {
  background: var(--bg);
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
  color: var(--text);
  transition: background 0.3s, color 0.3s;
}
.container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.card {
  background: var(--card-bg);
  padding: 18px;
  border-radius: 10px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--card-border);
  transition: background 0.3s, box-shadow 0.3s, border 0.3s;
}

/* ============================================================
   头部 & Tab 切换
   ============================================================ */
.header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
h1 {
  color: var(--text);
  margin-bottom: 0;
  font-size: 20px;
}

/* Tab 切换 */
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
}
.tab-btn {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  border-radius: 0;
}
.tab-btn:hover {
  color: var(--btn-primary);
  background: transparent;
}
.tab-btn.active {
  color: var(--btn-primary);
  border-bottom-color: var(--btn-primary);
}

/* Tab 面板 */
.tab-panel {
  display: none;
  flex-direction: column;
  gap: 16px;
}
.tab-panel.active {
  display: flex;
}
.theme-btn {
  width: 40px;
  height: 40px;
  font-size: 20px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
  cursor: pointer;
  transition: background 0.3s;
}
.theme-btn:hover {
  background: var(--btn-primary);
}

h3 {
  margin-bottom: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.hint {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
}

/* ============================================================
   环境选择器
   ============================================================ */
.env-selector {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
  padding: 8px 12px;
  background: var(--file-info-bg);
  border-radius: 6px;
}
.env-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}
.env-radio {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  cursor: pointer;
  color: var(--text);
  padding: 4px 12px;
  border-radius: 4px;
  transition: background 0.2s;
}
.env-radio:hover {
  background: rgba(64, 158, 255, 0.1);
}
.env-radio input[type="radio"] {
  accent-color: var(--btn-primary);
}

/* ============================================================
   表单
   ============================================================ */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 12px;
}
.form-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
label {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}
input, textarea, select {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: var(--input-bg);
  color: var(--input-text);
  transition: background 0.3s, border 0.3s, color 0.3s;
}
select {
  cursor: pointer;
  appearance: auto;
}
textarea {
  resize: vertical;
}

/* ============================================================
   按钮
   ============================================================ */
button {
  padding: 9px 14px;
  background: var(--btn-primary);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.2s;
}
button:hover {
  background: var(--btn-primary-hover);
}
button:disabled {
  background: #ccc;
  cursor: not-allowed;
}
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
  background: var(--btn-sm-bg);
  color: var(--btn-sm-text);
}
.btn-sm:hover {
  background: var(--btn-sm-hover);
}

/* ============================================================
   文件区
   ============================================================ */
.file-info {
  margin-top: 10px;
  padding: 10px;
  background: var(--file-info-bg);
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.6;
  transition: background 0.3s;
}
.batch-file-list {
  margin-top: 8px;
  max-height: 200px;
  overflow-y: auto;
}
.batch-file-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid var(--history-border);
  font-size: 12px;
}
.batch-idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: var(--btn-primary);
  color: white;
  border-radius: 50%;
  font-size: 11px;
  flex-shrink: 0;
}
.batch-size {
  color: var(--text-muted);
  flex-shrink: 0;
  font-size: 11px;
}
.ellipsis {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   断言区
   ============================================================ */
#assertionPanel {
  max-height: 220px;
  overflow-y: auto;
}
.assertion-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 4px;
  margin-bottom: 4px;
  font-size: 13px;
}
.assert-pass { background: var(--tag-ok-bg); color: var(--tag-ok-text); }
.assert-fail { background: var(--tag-fail-bg); color: var(--tag-fail-text); }
.assert-detail {
  color: var(--text-muted);
  font-size: 11px;
}

/* ============================================================
   耗时面板
   ============================================================ */
#timingPanel {
  max-height: 260px;
  overflow-y: auto;
}
.timing-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.timing-table th {
  background: var(--btn-primary);
  color: white;
  padding: 6px 8px;
  text-align: left;
  position: sticky;
  top: 0;
}
.timing-table td {
  padding: 4px 8px;
  border-bottom: 1px solid var(--history-border);
  color: var(--text);
}
.tag {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}
.tag-ok { background: var(--tag-ok-bg); color: var(--tag-ok-text); }
.tag-fail { background: var(--tag-fail-bg); color: var(--tag-fail-text); }
.empty-hint {
  color: var(--text-muted);
  font-size: 13px;
  padding: 10px 0;
}

/* ============================================================
   日志区
   ============================================================ */
#logBox {
  height: 420px;
  background: var(--log-bg);
  color: var(--log-color);
  padding: 12px;
  border-radius: 6px;
  overflow-y: auto;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  transition: background 0.3s, color 0.3s;
}

/* ============================================================
   颜色类
   ============================================================ */
.success { color: #4ade80; }
.error { color: #f87171; }
.info { color: #60a5fa; }
.param { color: #fbbf24; }

/* ============================================================
   进度 & 历史
   ============================================================ */
.progress {
  padding: 8px 12px;
  background: var(--progress-bg);
  border-radius: 6px;
  color: var(--progress-color);
  font-weight: 500;
  transition: background 0.3s, color 0.3s;
}
.history-item {
  padding: 6px 10px;
  border-bottom: 1px solid var(--history-border);
  font-size: 13px;
  display: flex;
  gap: 8px;
  align-items: center;
}