/* ==========================================================================
   CityVistion Unified UI — components.css v1.0
   统一组件：按钮 / 输入 / 卡片 / 表格 / 标签 / 弹窗 / Toast / 进度条 / 开关
   所有类名带 cv- 前缀，与旧样式并存不冲突；新页面直接用，旧页面渐进替换。
   ========================================================================== */

/* ---------- 基础 ---------- */
.cv-body, body.cv-body {
  background: var(--cv-bg);
  color: var(--cv-text);
  font-family: var(--cv-font);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--cv-accent-2); text-decoration: none; transition: color var(--cv-dur) var(--cv-ease); }
a:hover { color: var(--cv-accent); }

::selection { background: rgba(59, 130, 246, .35); }

/* 细滚动条 */
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, .22); border-radius: 8px; }
*::-webkit-scrollbar-thumb:hover { background: rgba(148, 163, 184, .38); }
*::-webkit-scrollbar-track { background: transparent; }

/* ---------- 按钮 ---------- */
.cv-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: var(--cv-control-h); padding: 0 16px;
  font-family: var(--cv-font); font-size: 13px; font-weight: 500;
  color: var(--cv-text); background: var(--cv-bg-3);
  border: 1px solid var(--cv-border); border-radius: var(--cv-radius-sm);
  cursor: pointer; user-select: none; white-space: nowrap;
  transition: all var(--cv-dur) var(--cv-ease);
}
.cv-btn:hover { border-color: var(--cv-border-strong); background: rgba(148,163,184,.12); }
.cv-btn:active { transform: translateY(1px); }
.cv-btn:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--cv-accent-ring); }
.cv-btn:disabled { opacity: .5; cursor: not-allowed; }

.cv-btn-primary { background: var(--cv-accent); border-color: transparent; color: #fff; }
.cv-btn-primary:hover { background: var(--cv-accent-2); border-color: transparent; }

.cv-btn-danger { background: var(--cv-danger-soft); border-color: rgba(248,113,113,.35); color: var(--cv-danger); }
.cv-btn-danger:hover { background: rgba(248,113,113,.22); border-color: var(--cv-danger); }

.cv-btn-ghost { background: transparent; border-color: transparent; color: var(--cv-text-2); }
.cv-btn-ghost:hover { background: rgba(148,163,184,.10); color: var(--cv-text); }

.cv-btn-sm { height: 28px; padding: 0 10px; font-size: 12px; }
.cv-btn-lg { height: 42px; padding: 0 22px; font-size: 14px; }
.cv-btn-block { width: 100%; }

/* ---------- 输入 ---------- */
.cv-input, .cv-select, .cv-textarea {
  width: 100%; min-height: var(--cv-control-h);
  padding: 7px 12px;
  font-family: var(--cv-font); font-size: 13px; color: var(--cv-text);
  background: var(--cv-bg-inset); border: 1px solid var(--cv-border);
  border-radius: var(--cv-radius-sm);
  transition: border-color var(--cv-dur) var(--cv-ease), box-shadow var(--cv-dur) var(--cv-ease);
}
.cv-input::placeholder, .cv-textarea::placeholder { color: var(--cv-text-3); }
.cv-input:focus, .cv-select:focus, .cv-textarea:focus {
  outline: none; border-color: var(--cv-accent);
  box-shadow: 0 0 0 2px var(--cv-accent-ring);
}
.cv-select { appearance: none; padding-right: 30px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
}
.cv-textarea { min-height: 90px; resize: vertical; line-height: 1.5; }

.cv-label { display: block; margin: 12px 0 6px; font-size: 12px; color: var(--cv-text-2); font-weight: 500; }
.cv-hint { font-size: 12px; color: var(--cv-text-3); margin-top: 6px; line-height: 1.5; }

.cv-checkbox { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 13px; color: var(--cv-text-2); }
.cv-checkbox input { width: 15px; height: 15px; accent-color: var(--cv-accent); margin: 0; }

/* ---------- 卡片 ---------- */
.cv-card {
  background: var(--cv-bg-2);
  border: 1px solid var(--cv-border);
  border-radius: var(--cv-radius);
  padding: 18px 20px;
}
.cv-card + .cv-card { margin-top: 16px; }
.cv-card-title {
  margin: 0 0 14px; font-size: 12px; font-weight: 600;
  letter-spacing: .8px; text-transform: uppercase;
  color: var(--cv-text-2);
  display: flex; align-items: center; justify-content: space-between;
}
.cv-card-title::after { content: ""; flex: 1; height: 1px; background: var(--cv-border); margin-left: 12px; }

/* ---------- 指标卡 ---------- */
.cv-metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; }
.cv-metric {
  background: var(--cv-bg-2); border: 1px solid var(--cv-border);
  border-radius: var(--cv-radius); padding: 16px 18px;
  transition: border-color var(--cv-dur) var(--cv-ease), transform var(--cv-dur) var(--cv-ease);
}
.cv-metric:hover { border-color: var(--cv-border-strong); transform: translateY(-1px); }
.cv-metric .k { font-size: 12px; color: var(--cv-text-2); letter-spacing: .5px; }
.cv-metric .v { font-size: 26px; font-weight: 700; margin-top: 4px; line-height: 1.2; }
.cv-metric .v small { font-size: 13px; color: var(--cv-text-2); font-weight: 400; }
.cv-metric .sub { font-size: 12px; color: var(--cv-text-3); margin-top: 4px; }

/* ---------- 表格 ---------- */
.cv-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.cv-table th {
  text-align: left; padding: 10px 12px;
  font-size: 11px; font-weight: 600; letter-spacing: .8px; text-transform: uppercase;
  color: var(--cv-text-2); border-bottom: 1px solid var(--cv-border-strong);
  position: sticky; top: 0; background: var(--cv-bg-2); z-index: 1;
}
.cv-table td { padding: 10px 12px; border-bottom: 1px solid var(--cv-border); color: var(--cv-text); }
.cv-table tbody tr { transition: background var(--cv-dur) var(--cv-ease); }
.cv-table tbody tr:hover { background: var(--cv-bg-3); }

/* ---------- 标签 / 状态丸 ---------- */
.cv-tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 10px; font-size: 12px; font-weight: 500;
  border-radius: var(--cv-radius-pill);
  background: var(--cv-bg-3); color: var(--cv-text-2);
  border: 1px solid var(--cv-border);
}
.cv-tag-ok { background: var(--cv-ok-soft); color: var(--cv-ok); border-color: rgba(52,211,153,.3); }
.cv-tag-warn { background: var(--cv-warn-soft); color: var(--cv-warn); border-color: rgba(251,191,36,.3); }
.cv-tag-danger { background: var(--cv-danger-soft); color: var(--cv-danger); border-color: rgba(248,113,113,.3); }
.cv-tag-info { background: var(--cv-info-soft); color: var(--cv-info); border-color: rgba(56,189,248,.3); }
.cv-tag-accent { background: var(--cv-accent-soft); color: var(--cv-accent-2); border-color: rgba(59,130,246,.3); }

/* ---------- 弹窗 ---------- */
.cv-modal-mask {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(4, 8, 18, .62);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .18s var(--cv-ease);
}
.cv-modal-mask.open { opacity: 1; pointer-events: auto; }
.cv-modal {
  width: min(560px, calc(100vw - 48px)); max-height: 82vh;
  display: flex; flex-direction: column;
  background: var(--cv-bg-2); border: 1px solid var(--cv-border-strong);
  border-radius: var(--cv-radius-lg); box-shadow: var(--cv-shadow-lg);
  transform: translateY(8px) scale(.98);
  transition: transform .18s var(--cv-ease);
}
.cv-modal-mask.open .cv-modal { transform: none; }
.cv-modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--cv-border);
  font-size: 14px; font-weight: 600;
}
.cv-modal-body { padding: 18px; overflow-y: auto; }
.cv-modal-close {
  width: 28px; height: 28px; border-radius: 6px; border: none;
  background: transparent; color: var(--cv-text-2); font-size: 16px;
  cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
}
.cv-modal-close:hover { background: rgba(148,163,184,.12); color: var(--cv-text); }

/* ---------- Toast ---------- */
.cv-toast-wrap { position: fixed; top: 18px; right: 18px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; }
.cv-toast {
  min-width: 220px; max-width: 380px;
  padding: 11px 16px; border-radius: var(--cv-radius);
  background: var(--cv-bg-2); border: 1px solid var(--cv-border-strong);
  box-shadow: var(--cv-shadow); font-size: 13px;
  display: flex; align-items: flex-start; gap: 9px;
  animation: cv-toast-in .22s var(--cv-ease);
}
.cv-toast.ok { border-left: 3px solid var(--cv-ok); }
.cv-toast.err { border-left: 3px solid var(--cv-danger); }
.cv-toast.warn { border-left: 3px solid var(--cv-warn); }
.cv-toast.out { opacity: 0; transform: translateX(12px); transition: all .25s var(--cv-ease); }
@keyframes cv-toast-in { from { opacity: 0; transform: translateX(12px); } }

/* ---------- 进度条 ---------- */
.cv-progress { height: 6px; background: var(--cv-bg-3); border-radius: var(--cv-radius-pill); overflow: hidden; }
.cv-progress > i { display: block; height: 100%; background: var(--cv-accent); border-radius: inherit; transition: width .3s var(--cv-ease); }
.cv-progress.ok > i { background: var(--cv-ok); }
.cv-progress.warn > i { background: var(--cv-warn); }
.cv-progress.danger > i { background: var(--cv-danger); }

/* ---------- 开关 ---------- */
.cv-switch { position: relative; display: inline-block; width: 38px; height: 21px; flex-shrink: 0; }
.cv-switch input { opacity: 0; width: 0; height: 0; }
.cv-switch i {
  position: absolute; inset: 0; border-radius: var(--cv-radius-pill);
  background: var(--cv-bg-3); border: 1px solid var(--cv-border);
  transition: all var(--cv-dur) var(--cv-ease); cursor: pointer;
}
.cv-switch i::before {
  content: ""; position: absolute; left: 2px; top: 2px;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--cv-text-2); transition: all var(--cv-dur) var(--cv-ease);
}
.cv-switch input:checked + i { background: var(--cv-accent); border-color: var(--cv-accent); }
.cv-switch input:checked + i::before { transform: translateX(17px); background: #fff; }

/* ---------- 工具类 ---------- */
.cv-grid { display: grid; gap: 16px; }
.cv-grid-2 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.cv-grid-3 { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.cv-flex { display: flex; align-items: center; gap: 10px; }
.cv-flex-wrap { flex-wrap: wrap; }
.cv-grow { flex: 1; min-width: 0; }
.cv-muted { color: var(--cv-text-2); }
.cv-dim { color: var(--cv-text-3); }
.cv-mono { font-family: var(--cv-font-mono); font-size: 12px; }
.cv-right { margin-left: auto; }
.cv-mt { margin-top: 12px; } .cv-mt-lg { margin-top: 20px; }
.cv-hidden { display: none !important; }