/* ============================================================
   工具页共享样式 — 沿用「随练技术工具」设计令牌 (见 style.css :root)
   设计基调：极简科技·浅色，白卡片 + 发丝边 + 克制的蓝强调
   ============================================================ */

.tool-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 64px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.tool-head { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.tool-head .kicker { font-size: 13px; font-weight: 500; letter-spacing: 1px; color: var(--primary); }
.tool-lead { font-size: 17px; color: var(--text-2); line-height: 1.5; max-width: 720px; }

/* 工具面板 */
.tool-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.tool-panel-title { font-size: 16px; font-weight: 600; color: var(--text); }

.tool-field { display: flex; flex-direction: column; gap: 8px; }
.tool-label { font-size: 14px; font-weight: 500; color: var(--text-2); }

.tool-input, .tool-textarea, .tool-select {
  font-family: var(--font-code);
  font-size: 14px;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  width: 100%;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.tool-textarea { resize: vertical; min-height: 220px; line-height: 1.6; }
.tool-input:focus, .tool-textarea:focus, .tool-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.12);
}
.tool-select { width: auto; min-width: 150px; }

.tool-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.tool-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.tool-result {
  font-family: var(--font-code);
  font-size: 14px;
  line-height: 1.7;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 56px;
  color: var(--text);
}
.tool-result.error { color: #d93025; border-color: #f3c2bd; background: #fdf3f2; }
.tool-result.ok { color: #0f7a4d; background: #f0faf5; border-color: #bfe6d2; }
.tool-result.muted { color: var(--text-3); }

/* JSON 语法高亮 */
.jt-key { color: var(--primary); }
.jt-str { color: var(--success); }
.jt-num { color: #b45309; }
.jt-bool { color: #8b5cf6; }
.jt-null { color: #8b5cf6; }

/* 时间戳工具 */
.clock {
  font-family: var(--font-code);
  font-size: 14px;
  color: var(--text-2);
  background: var(--primary-soft);
  border-radius: 8px;
  padding: 10px 14px;
}
.clock b { color: var(--primary); }
.tz-line { display: flex; justify-content: space-between; gap: 16px; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.tz-line:last-child { border-bottom: none; }
.tz-name { color: var(--text-2); white-space: nowrap; }
.tz-val { font-family: var(--font-code); color: var(--text); text-align: right; }

/* 正则工具 */
.rx-match { background: rgba(26, 115, 232, 0.16); border-radius: 3px; padding: 0 1px; color: var(--text); }
.rx-flagset { display: flex; gap: 18px; flex-wrap: wrap; }
.rx-flag { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--text-2); cursor: pointer; }
.rx-flag input { accent-color: var(--primary); width: 16px; height: 16px; }
.match-list { display: flex; flex-direction: column; gap: 8px; }
.match-item { background: var(--canvas); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; font-family: var(--font-code); font-size: 13px; color: var(--text-2); }
.match-item .idx { color: var(--primary); font-weight: 600; margin-right: 8px; }

/* 工具页页脚 */
.tool-footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 32px 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-3);
}
.tool-footer a { color: var(--text-2); transition: color .2s ease; }
.tool-footer a:hover { color: var(--primary); }

@media (max-width: 720px) {
  .tool-page { padding: 40px 24px; }
  .tool-footer { padding: 24px; flex-direction: column; align-items: flex-start; }
  .tool-result { font-size: 13px; }
}