/* app.css — 公共样式（Emil Kowalski 设计工程规范） */
/* 依赖 Tailwind CDN utility 类；此处放自定义类与主题变量。 */

:root {
  --brand-from: #1e3a8a;
  --brand-to: #991b1b;
  --accent: #2563eb;

  /* ── 缓动曲线（自定义贝塞尔，不用 CSS 内置） ── */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);      /* 进入/退出 */
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);   /* 屏幕内移动 */
  --ease-drawer: cubic-bezier(0.32, 0.72, 0, 1);    /* iOS 风格 */
}

/* 品牌渐变 */
.gradient-bg {
  background: linear-gradient(135deg, var(--brand-from) 0%, var(--brand-to) 100%);
}

/* ═══════════════ 入场动画 ═══════════════ */

/* 页面淡入（低频，可用 keyframes） */
.fade-in {
  animation: dj-fadeIn 0.3s var(--ease-out);
}
@keyframes dj-fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* stagger 入场（列表项依次出现） */
.stagger-item {
  opacity: 0;
  animation: dj-staggerIn 0.25s var(--ease-out) forwards;
}
@keyframes dj-staggerIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 脉动点（状态指示，低频） */
.pulse-dot { animation: dj-pulse 2s var(--ease-in-out) infinite; }
@keyframes dj-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

/* ═══════════════ 组件交互 ═══════════════ */

/* 按钮按压反馈 — 100ms */
.btn-press {
  transition: transform 0.1s var(--ease-out);
}
.btn-press:active {
  transform: scale(0.97);
}

/* 卡片悬停 — 150ms ease-out */
.card-hover {
  transition: transform 0.15s var(--ease-out), box-shadow 0.15s var(--ease-out);
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.10);
}

/* 城市卡片 — 修正 transition: all */
.city-card {
  transition: border-color 0.15s var(--ease-out),
              box-shadow 0.15s var(--ease-out),
              transform 0.15s var(--ease-out);
}
.city-card.active {
  border-color: #2563eb !important;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
@media (hover: hover) and (pointer: fine) {
  .city-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
  }
}

/* KPI 卡片 — 修正 transition: all */
.kpi {
  transition: transform 0.15s var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .kpi:hover { transform: translateY(-2px); }
}

/* 行高亮（表格/列表行 hover） */
.stale-row {
  transition: background-color 0.12s var(--ease-out);
}

/* 分数可编辑下划线 */
.score-editable {
  cursor: pointer;
  border-bottom: 1px dashed transparent;
  transition: border-color 0.15s var(--ease-out);
}
.score-editable:hover {
  border-color: #9ca3af;
}

/* 目标单元格 */
.target-cell {
  transition: background-color 0.12s var(--ease-out);
}
.target-cell:hover {
  background: #f0f9ff;
}

/* 详情面板展开/折叠 */
.detail-panel {
  transition: opacity 0.2s var(--ease-out);
}

/* ═══════════════ 评分色 ═══════════════ */
.score-high { color: #16a34a; font-weight: 700; }
.score-mid  { color: #ca8a04; font-weight: 600; }
.score-low  { color: #9ca3af; }

/* 来源徽标 */
.source-badge {
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 9999px;
  background: #f3f4f6;
}

/* 通用小徽标 */
.type-badge {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 9999px;
}

/* ═══════════════ 文字截断 ═══════════════ */
.truncate-1 {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.truncate-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.truncate-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ═══════════════ 滚动条 ═══════════════ */
.city-scroll::-webkit-scrollbar { height: 6px; }
.city-scroll::-webkit-scrollbar-track { background: #f3f4f6; border-radius: 3px; }
.city-scroll::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
.city-scroll::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* ═══════════════ 正文渲染 ═══════════════ */
.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 8px 0;
}
.article-body p {
  margin: 0 0 0.6em;
  line-height: 1.75;
}
.article-body strong {
  color: #111827;
}

/* ═══════════════ 无障碍 ═══════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in { animation: none; opacity: 1; }
  .stagger-item { animation: none; opacity: 1; }
  .pulse-dot { animation: none; opacity: 1; }
}