/*!
 * 伏虎工作台 UI States v1 — 空态/加载/错误/Toast/表单焦点/表格补齐（2026-10-31）
 * 基线：现网 ui-polish-v1.css sha 2e26b175…（ui260 体）+ 规范 v1.1
 * 禁区：不改密码/账号/业务数据；不改 core.js Nav；不碰 nfb_plots/nfb_patch
 * 用法：挂在 ui-polish-v1.css 之后；cache-bust 由运维统一（建议 20261031ui-states）
 * 状态：方案草案 · 未改生产 · 待蓝主任点「上」
 */
:root {
  --fh-toast-ok-border: #86efac;
  --fh-toast-err-border: #fca5a5;
  --fh-toast-warn-border: #fcd34d;
  --fh-toast-info-border: #93c5fd;
}

/* ===== S1 空状态（规范：留白+次文字；对齐 .empty-state / .lg-empty / .wh-empty） ===== */
.empty-state,
.lg-empty,
.wh-empty {
  padding: 40px 24px !important;
  text-align: center !important;
  color: var(--fh-text-muted, #6b7280) !important;
  font-size: 13px !important;
  background: transparent;
  border: 1px dashed var(--fh-border, #e5e7eb);
  border-radius: var(--fh-radius-lg, 12px);
  margin: 8px 0;
}
.empty-state svg,
.lg-empty svg,
.wh-empty svg {
  width: 40px;
  height: 40px;
  margin: 0 auto 10px;
  display: block;
  color: #94a3b8;
  opacity: .9;
}
.empty-state p,
.lg-empty p,
.wh-empty p {
  margin: 0;
  font-size: 13px;
  color: var(--fh-text-muted, #6b7280);
  line-height: 1.5;
}
.empty-state .empty-title,
.wh-empty .empty-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--fh-text-2, #475569);
  margin-bottom: 4px;
}

/* ===== S2 加载态 / spinner（规范交互 150–220ms；禁霓虹） ===== */
@keyframes fh-spin {
  to { transform: rotate(360deg); }
}
.loading,
.fh-loading,
.page-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 32px 16px;
  color: var(--fh-text-muted, #6b7280);
  font-size: 13px;
}
.loading-spinner,
.fh-spinner,
.spinner {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid #e2e8f0;
  border-top-color: var(--fh-primary, #1a56db);
  animation: fh-spin .85s linear infinite;
  box-shadow: 0 0 0 1px rgba(26, 86, 219, .06);
  display: inline-block;
  vertical-align: middle;
}
.loading-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--fh-text-muted, #6b7280);
  font-size: 12px;
}

/* ===== S3 Toast / 错误提示（core UI.toast 已设 class="toast ${type}"） ===== */
#toastContainer {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: #fff !important;
  border: 1px solid var(--fh-border, #e5e7eb) !important;
  border-radius: 10px !important;
  padding: 10px 14px !important;
  box-shadow: 0 4px 14px rgba(15, 23, 42, .10) !important;
  font-size: 13px !important;
  color: var(--fh-text, #111827) !important;
  display: flex !important;
  gap: 8px;
  align-items: center;
  min-width: 180px;
  max-width: min(360px, 92vw);
  border-left: 3px solid var(--fh-info, #0891b2) !important;
}
.toast.success { border-left-color: var(--fh-success, #16a34a) !important; background: var(--fh-success-bg, #f0fdf4) !important; }
.toast.error   { border-left-color: var(--fh-danger, #dc2626) !important; background: var(--fh-danger-bg, #fef2f2) !important; }
.toast.warning,
.toast.warn    { border-left-color: var(--fh-warning, #d97706) !important; background: var(--fh-warning-bg, #fffbeb) !important; }
.toast.info    { border-left-color: var(--fh-primary, #1a56db) !important; background: var(--fh-primary-soft, #eff6ff) !important; }
.toast .toast-icon {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; flex-shrink: 0;
  background: #e2e8f0; color: #334155;
}
.toast.success .toast-icon { background: #bbf7d0; color: #166534; }
.toast.error .toast-icon   { background: #fecaca; color: #991b1b; }
.toast.warning .toast-icon,
.toast.warn .toast-icon    { background: #fde68a; color: #92400e; }
.toast.info .toast-icon    { background: #bfdbfe; color: #1e40af; }

/* 页级错误条（若模块用 .alert / .error-banner） */
.alert,
.error-banner,
.fh-alert {
  padding: 12px 14px;
  border-radius: 10px;
  margin-bottom: 12px;
  font-size: 13px;
  border: 1px solid var(--fh-border, #e5e7eb);
  background: #fff;
  color: var(--fh-text, #111827);
}
.alert-error, .alert.danger, .fh-alert.error {
  background: var(--fh-danger-bg, #fef2f2);
  border-color: #fecaca;
  color: #991b1b;
}
.alert-warning, .alert.warn, .fh-alert.warn {
  background: var(--fh-warning-bg, #fffbeb);
  border-color: #fde68a;
  color: #92400e;
}
.alert-success, .alert.ok, .fh-alert.ok {
  background: var(--fh-success-bg, #f0fdf4);
  border-color: #bbf7d0;
  color: #166534;
}
.alert-info, .fh-alert.info {
  background: var(--fh-primary-soft, #eff6ff);
  border-color: #bfdbfe;
  color: #1e40af;
}

/* ===== S4 按钮层级补齐（规范 5.4；压 boardchrome #2563eb） ===== */
.btn-primary:focus-visible,
.lg-btn.pri:focus-visible,
.wh-btn.pri:focus-visible,
.login-btn:focus-visible {
  outline: 2px solid var(--fh-primary, #1a56db);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(26, 86, 219, .12) !important;
}
.btn:disabled,
.lg-btn:disabled,
.wh-btn:disabled,
.dm-btn:disabled {
  opacity: .55;
  cursor: not-allowed;
  transform: none !important;
}
/* BoardChrome 注入仍写 #2563eb → 用主色覆盖（不改 boardchrome.js） */
.bc-tab.active {
  background: var(--fh-primary, #1a56db) !important;
  border-color: var(--fh-primary, #1a56db) !important;
  color: #fff !important;
}

/* ===== S5 表单 focus（规范 5.3；补 login-input / wh-f） ===== */
.login-input:focus,
.login-input:focus-visible,
.wh-f input:focus,
.wh-f select:focus,
.wh-f textarea:focus,
.dm-form input:focus,
.dm-form select:focus,
.dm-form textarea:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none !important;
  border-color: var(--fh-accent, #1a56db) !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12) !important;
}

/* ===== S6 表格斑马补齐 WorkHub（现网 polish 未盖 table.wh-t） ===== */
table.wh-t th {
  background: #f8fafc !important;
  color: #374151 !important;
  font-weight: 600 !important;
  border-bottom: 1px solid var(--fh-border, #e5e7eb) !important;
  background-image: none !important;
}
table.wh-t tbody tr:nth-child(even) td {
  background: var(--fh-zebra, #f8fafc) !important;
}
table.wh-t tbody tr:hover td {
  background: #eff6ff !important;
}

/* ===== S7 登录/侧栏残留收敛（规范禁区色；不改 Nav 结构） ===== */
.login-card {
  box-shadow: 0 12px 32px rgba(15, 23, 42, .16) !important; /* 压过 index 0 20px 60px */
}
.nav-group-title,
.nav-group-head {
  color: #94a3b8 !important; /* 再压 index 内联 #fbbf24 */
}

/* ===== S8 无障碍 ===== */
@media (prefers-reduced-motion: reduce) {
  .loading-spinner,
  .fh-spinner,
  .spinner,
  .toast {
    animation: none !important;
    transition: none !important;
  }
}