/* ==========================================================================
   PowerTokens 归因面板 · 单元 3.1 看板骨架
   原生 CSS，无框架、无构建步骤。浅色主题，对齐高保真原型的 zinc/indigo 色板。
   ========================================================================== */

:root {
  --bg: #f4f4f5;            /* zinc-100 */
  --surface: #ffffff;
  --surface-2: #fafafa;
  --border: #e4e4e7;        /* zinc-200 */
  --border-strong: #d4d4d8; /* zinc-300 */
  --text: #18181b;          /* zinc-900 */
  --text-2: #3f3f46;        /* zinc-700 */
  --muted: #71717a;         /* zinc-500 */
  --muted-2: #a1a1aa;       /* zinc-400 */

  --brand: #6366f1;         /* indigo-500 */
  --brand-strong: #4f46e5;  /* indigo-600 */
  --brand-soft: #eef2ff;    /* indigo-50  */
  --violet: #8b5cf6;
  --violet-soft: #f5f3ff;
  --emerald: #059669;
  --emerald-soft: #ecfdf5;
  --amber: #d97706;
  --amber-soft: #fffbeb;
  --rose: #e11d48;
  --rose-soft: #fff1f2;
  --zinc: #52525b;
  --zinc-soft: #f4f4f5;

  --radius: 10px;
  --radius-sm: 7px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
  --tabbar-h: 60px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button { font-family: inherit; cursor: pointer; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace; }
.hidden { display: none !important; }

/* ==========================================================================
   布局骨架
   ========================================================================== */
.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

/* ----- 顶部 Tab 导航（吸顶） ----- */
.top-tabbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 20px;
  height: var(--tabbar-h);
  padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.tabbar-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), var(--violet));
  color: #fff;
  font-weight: 700;
  font-size: 17px;
}
.brand-title { font-weight: 600; font-size: 13px; line-height: 1.2; }
.brand-sub { font-size: 11px; color: var(--muted); }

.tabbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 100%;
  overflow-x: auto;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 13px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}
.nav-item:hover { background: var(--surface-2); color: var(--text-2); }
.nav-item.active {
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-weight: 600;
}
.nav-en { font-size: 10px; color: var(--muted-2); font-weight: 400; margin-left: 2px; }
.nav-item.active .nav-en { color: var(--brand); }

/* ----- 全局筛选区 ----- */
.filter-bar {
  padding: 14px 20px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.filter-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 6px; }
/* 收/展按钮推到最右（骨架里 id="filter-collapse-btn" 一直裸着没有样式，已补） */
#filter-collapse-btn { margin-left: auto; }
.filter-title { margin: 0 6px 0 0; font-size: 15px; font-weight: 600; }
.caliber-line { font-size: 12px; color: var(--muted); margin-bottom: 10px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.6;
}
.badge-violet { background: var(--violet-soft); color: var(--violet); }
.badge-zinc { background: var(--zinc-soft); color: var(--zinc); }
.badge-emerald { background: var(--emerald-soft); color: var(--emerald); }

/* 筛选 chip 墙 */
.filter-tag-wall { display: flex; flex-direction: column; gap: 8px; }
.filter-tag-wall.is-collapsed { display: none; }
.filter-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.filter-label {
  min-width: 58px;
  font-size: 12px;
  color: var(--muted);
  flex-shrink: 0;
}
.tag-chip, .preset-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  border-radius: var(--radius-sm);
  font-size: 12px;
  padding: 4px 10px;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.tag-chip:hover, .preset-btn:hover { border-color: var(--border-strong); background: var(--surface-2); }
.tag-chip.active, .preset-btn.active {
  background: var(--brand-soft);
  border-color: var(--brand);
  color: var(--brand-strong);
  font-weight: 500;
}
.all-chip { color: var(--zinc); }
.all-chip.active { color: var(--brand-strong); }

.date-input {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 12px;
  color: var(--text-2);
  background: var(--surface);
}
.date-input:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }
.date-sep { color: var(--muted); font-size: 12px; }
.custom-mode-badge {
  margin-left: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-size: 11px;
  font-weight: 500;
}
.filter-collapsed-summary {
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--text-2);
  background: var(--surface-2);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
}
.reserved-hint { font-size: 12px; color: var(--muted-2); }

/* ----- 单内容区 ----- */
#main-scroll {
  flex: 1;
  padding: 16px 20px 40px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}
.page { display: none; }
.page.active { display: block; }

/* ----- 卡片 ----- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.section-title {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

/* 占位卡片（3.1 的「占位卡片」） */
.placeholder-card { margin-bottom: 16px; }
.placeholder-head { display: flex; gap: 6px; margin-bottom: 10px; }
.contract-rows { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }
.contract-row {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 10px;
  font-size: 12.5px;
  line-height: 1.55;
}
.contract-label { color: var(--muted); flex-shrink: 0; }
.contract-row .mono { font-size: 12px; color: var(--text-2); word-break: break-all; }

/* ==========================================================================
   三态：加载 / 空 / 错误 / 就绪
   ========================================================================== */
.state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  padding: 40px 20px;
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}
.state-title { font-size: 14px; font-weight: 600; color: var(--text-2); }
.state-hint { font-size: 12px; max-width: 460px; }
.state svg { color: var(--muted-2); }

.spinner {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 3px solid var(--brand-soft);
  border-top-color: var(--brand);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.state-empty svg { color: var(--muted-2); }
.state-error svg { color: var(--rose); }
.state-ready svg { color: var(--emerald); }

.retry-btn {
  margin-top: 6px;
  padding: 6px 18px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--brand);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
}
.retry-btn:hover { background: var(--brand-strong); }

/* ==========================================================================
   用户详情抽屉（占位）
   ========================================================================== */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(24, 24, 27, 0.4);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.drawer-overlay.open { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 480px;
  max-width: 92vw;
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.12);
  z-index: 41;
  transform: translateX(100%);
  transition: transform 0.22s ease;
  display: flex;
  flex-direction: column;
}
.drawer.open { transform: translateX(0); }
.drawer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.drawer-title { font-size: 16px; font-weight: 600; }
.drawer-subtitle { font-size: 12px; margin-top: 2px; }
.drawer-body { padding: 16px 18px; overflow-y: auto; flex: 1; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 720px) {
  .top-tabbar { flex-direction: column; height: auto; align-items: flex-start; gap: 8px; padding: 10px 14px; }
  .tabbar-nav { width: 100%; }
  .contract-row { grid-template-columns: 1fr; gap: 2px; }
  .drawer { width: 100vw; }
}