/* ================================================================
   CompanyOS Design System v1.0
   统一组件类库 — 约 92 个类 + 3 个动画
   使用规则：新代码必须用这些类，禁止写 inline style
   ================================================================ */

/* ── 补充设计变量（追加到现有 :root） ── */
:root {
  --bg-muted:     #f1f5f9;
  --hover:        rgba(2,132,199,0.06);

  --space-xs: 4px;   --space-sm: 8px;    --space-md: 12px;
  --space-lg: 16px;  --space-xl: 24px;   --space-2xl: 32px;

  --radius-xs: 4px;

  --font-xs: 11px;   --font-sm: 12px;    --font-base: 13px;
  --font-md: 14px;   --font-lg: 16px;    --font-xl: 20px;
}

/* ══ 1. 布局工具类 (14) ══════════════════════════════════════════ */

.flex            { display: flex; }
.flex-center     { display: flex; align-items: center; }
.flex-between    { display: flex; align-items: center; justify-content: space-between; }
.flex-end        { display: flex; align-items: center; justify-content: flex-end; }
.flex-wrap       { flex-wrap: wrap; }
.flex-col        { flex-direction: column; }
.flex-1          { flex: 1; }
.gap-xs          { gap: var(--space-xs); }
.gap-sm          { gap: var(--space-sm); }
.gap-md          { gap: var(--space-md); }
.gap-lg          { gap: var(--space-lg); }
.grid-2          { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.grid-3          { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.grid-4          { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }

/* ══ 2. 按钮 (11) ════════════════════════════════════════════════ */

.ds-btn          { padding: 8px 12px; border-radius: 6px; font-size: 13px; font-weight: 500;
                   cursor: pointer; border: none; display: inline-flex; align-items: center;
                   gap: 6px; transition: all .15s; line-height: 1.4; }
.ds-btn-sm       { padding: 4px 10px; font-size: 12px; }
.ds-btn-xs       { padding: 2px 8px; font-size: 11px; }

.ds-btn-primary  { background: var(--primary); color: #fff; }
.ds-btn-primary:hover { background: var(--primary-dk); }
.ds-btn-success  { background: var(--success); color: #fff; }
.ds-btn-danger   { background: var(--danger); color: #fff; }
.ds-btn-warning  { background: var(--warning); color: #fff; }
.ds-btn-outline  { background: #fff; color: var(--text2); border: 1px solid var(--border); }
.ds-btn-outline:hover { background: var(--bg-muted); }
.ds-btn-ghost    { background: transparent; color: var(--primary); }
.ds-btn-ghost:hover { background: var(--hover); }
.ds-btn-danger-lt { background: var(--danger-lt); color: var(--danger); }

/* ══ 3. 加载按钮 (3 + 动画) ══════════════════════════════════════ */

.ds-btn-loading           { position: relative; gap: 8px; }
.ds-btn-loading .spinner-ring {
  width: 14px; height: 14px; flex: 0 0 auto;
  border-radius: 999px;
  border: 1.5px solid currentColor;
  border-right-color: transparent;
  border-bottom-color: transparent;
  opacity: 0.72;
  animation: ds-spin-ring .78s linear infinite;
}
.ds-btn-loading.is-busy   { cursor: progress; }

@keyframes ds-spin-ring {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ══ 4. 卡片 (4) ═════════════════════════════════════════════════ */

.ds-card         { background: var(--card); border-radius: var(--radius-sm, 8px); padding: 20px;
                   border: 1px solid var(--border-lt); box-shadow: var(--shadow-sm); }
.ds-card-compact { padding: 16px; }
.ds-card-header  { font-size: var(--font-md); font-weight: 600; color: var(--text1);
                   margin-bottom: 12px;
                   display: flex; align-items: center; justify-content: space-between; }
.ds-card-body    { font-size: var(--font-base); color: var(--text2); }

/* ══ 5. 表格 (4) ═════════════════════════════════════════════════ */

.ds-table        { width: 100%; border-collapse: collapse; table-layout: fixed;
                   font-size: var(--font-sm); }
.ds-table th     { padding: 9px 12px; background: var(--bg-muted); color: var(--text3);
                   font-weight: 600; text-align: left;
                   border-bottom: 1px solid var(--border); white-space: nowrap; }
.ds-table td     { padding: 7px 10px; border-bottom: 1px solid var(--border-lt);
                   color: var(--text2); }
.ds-table tr:hover td { background: var(--primary-xlt); }

/* ══ 6. 徽章 (5) ═════════════════════════════════════════════════ */

.ds-badge        { padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600;
                   display: inline-flex; align-items: center; gap: 4px; line-height: 1.6; }
.ds-badge-primary { background: var(--primary-lt); color: var(--primary-dk); }
.ds-badge-success { background: var(--success-lt); color: var(--success); }
.ds-badge-warning { background: var(--warning-lt); color: var(--warning); }
.ds-badge-danger  { background: var(--danger-lt); color: var(--danger); }
.ds-badge-neutral { background: #e2e8f0; color: #334155; }

/* ══ 7. 状态光点徽章 (12) ════════════════════════════════════════ */

.ds-badge-dot    { display: inline-flex; align-items: center; gap: 6px;
                   padding: 3px 10px 3px 8px; border-radius: 999px;
                   font-size: 11px; font-weight: 500;
                   border: 1px solid var(--border-lt); background: var(--card); }
.ds-badge-dot .dot-indicator {
  width: 6px; height: 6px; border-radius: 999px; flex-shrink: 0;
}
.ds-badge-dot-green .dot-indicator  { background: var(--success);
                                       box-shadow: 0 0 0 2px rgba(5,150,105,0.2); }
.ds-badge-dot-green                  { color: var(--success); }
.ds-badge-dot-red .dot-indicator    { background: var(--danger);
                                       box-shadow: 0 0 0 2px rgba(220,38,38,0.2); }
.ds-badge-dot-red                    { color: var(--danger); }
.ds-badge-dot-blue .dot-indicator   { background: var(--primary);
                                       box-shadow: 0 0 0 2px rgba(2,132,199,0.2); }
.ds-badge-dot-blue                   { color: var(--primary); }
.ds-badge-dot-amber .dot-indicator  { background: var(--warning);
                                       box-shadow: 0 0 0 2px rgba(217,119,6,0.2); }
.ds-badge-dot-amber                  { color: var(--warning); }
.ds-badge-dot-gray .dot-indicator   { background: var(--text4);
                                       box-shadow: 0 0 0 2px rgba(138,164,188,0.15); }
.ds-badge-dot-gray                   { color: var(--text3); }

/* ══ 8. 表单控件 (5) ═════════════════════════════════════════════ */

.ds-input        { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
                   font-size: 13px; color: var(--text1); width: 100%; outline: none;
                   transition: all .15s; background: #fff; }
.ds-input:focus  { border-color: var(--primary);
                   box-shadow: 0 0 0 3px rgba(2,132,199,0.1); }
.ds-select       { padding: 8px 32px 8px 12px; border: 1px solid var(--border);
                   border-radius: 6px; font-size: 13px; color: var(--text1);
                   outline: none; appearance: none; background: #fff
                   url(data:image/svg+xml,%3Csvg xmlns=http://www.w3.org/2000/svg width=12 height=12 viewBox=0 0 24 24 fill=none stroke=%234a6480 stroke-width=2%3E%3Cpath d=m6 9 6 6 6-6/%3E%3C/svg%3E)
                   no-repeat right 10px center;
                   transition: all .15s; }
.ds-select:focus { border-color: var(--primary);
                   box-shadow: 0 0 0 3px rgba(2,132,199,0.1); }
.ds-label        { font-size: 12px; font-weight: 500; color: var(--text3); margin-bottom: 4px;
                   display: block; }
.ds-form-group   { margin-bottom: 16px; }

/* ══ 9. 弹窗 Modal (4) ══════════════════════════════════════════ */

.ds-modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 1000;
                    display: flex; align-items: center; justify-content: center; }
.ds-modal        { background: #fff; border-radius: 12px; padding: 24px; min-width: 400px;
                   max-width: 90vw; max-height: 85vh; overflow-y: auto;
                   box-shadow: var(--shadow-lg); }
.ds-modal-title  { font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.ds-modal-footer { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }

/* ══ 10. Tab 选项卡 (3) ══════════════════════════════════════════ */

.ds-tabs         { display: flex; gap: 0; border-bottom: 1px solid var(--border); }
.ds-tab          { padding: 10px 16px; font-size: 13px; color: var(--text3); cursor: pointer;
                   border-bottom: 2px solid transparent; transition: all .15s; }
.ds-tab.active   { color: var(--primary); border-bottom-color: var(--primary);
                   font-weight: 600; }

/* ══ 11. 分段控件 (2) ════════════════════════════════════════════ */

.ds-segmented    { display: inline-flex; gap: 2px; padding: 3px; border-radius: 999px;
                   background: var(--bg-muted); }
.ds-seg-item     { padding: 5px 14px; border-radius: 999px; font-size: 12px; font-weight: 500;
                   color: var(--text3); cursor: pointer; border: none; background: transparent;
                   transition: all .15s; }
.ds-seg-item.active { background: #fff; color: var(--text1);
                      box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

/* ══ 12. Toast 通知 (11 + 动画) ══════════════════════════════════ */

.ds-toast-container { position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
                      z-index: 9999; display: flex; flex-direction: column; gap: 8px;
                      pointer-events: none; }

.ds-toast        { display: inline-flex; align-items: center; gap: 10px;
                   padding: 10px 14px; border-radius: 8px;
                   background: #fff; border: 1px solid var(--border-lt);
                   box-shadow: 0 4px 16px rgba(0,0,0,0.08);
                   pointer-events: auto; animation: ds-toast-in .25s ease;
                   max-width: 420px; }
.ds-toast-dot    { width: 8px; height: 8px; border-radius: 999px; flex-shrink: 0; }
.ds-toast-dot-success { background: var(--success); box-shadow: 0 0 6px var(--success); }
.ds-toast-dot-warning { background: var(--warning); box-shadow: 0 0 6px var(--warning); }
.ds-toast-dot-danger  { background: var(--danger);  box-shadow: 0 0 6px var(--danger); }
.ds-toast-dot-info    { background: var(--primary); box-shadow: 0 0 6px var(--primary); }
.ds-toast-title  { font-size: 13px; font-weight: 500; }
.ds-toast-desc   { font-size: 11px; color: var(--text4); margin-top: 1px; }
.ds-toast-close  { width: 18px; height: 18px; border-radius: 999px; border: none;
                   background: transparent; color: var(--text4); font-size: 12px;
                   cursor: pointer; display: flex; align-items: center;
                   justify-content: center; margin-left: 4px; }
.ds-toast-close:hover { background: var(--bg-muted); color: var(--text2); }

.ds-toast-progress { height: 3px; background: var(--bg-muted); border-radius: 0 0 8px 8px;
                     overflow: hidden; margin: 8px -14px -10px; }
.ds-toast-progress-bar { height: 100%; transform-origin: left;
                         animation: ds-toast-countdown var(--toast-duration, 3s) linear forwards; }

@keyframes ds-toast-in {
  from { transform: translateY(-12px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
@keyframes ds-toast-countdown {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ══ 13. 统计数字 (6) ════════════════════════════════════════════ */

.ds-stat-value   { font-size: 28px; font-weight: 700; letter-spacing: -0.02em;
                   line-height: 1.2; }
.ds-stat-label   { font-size: 12px; color: var(--text4); margin-top: 2px; }
.ds-stat-change  { font-size: 11px; font-weight: 600; }
.ds-stat-up      { color: var(--success); }
.ds-stat-down    { color: var(--danger); }
.ds-mini-bar     { height: 4px; border-radius: 999px; background: var(--bg-muted);
                   overflow: hidden; margin-top: 12px; }
.ds-mini-bar-fill { height: 100%; border-radius: 999px; transition: width .5s ease; }

/* ══ 14. 排版工具类 (17) ═════════════════════════════════════════ */

.ds-text-xs      { font-size: var(--font-xs); }
.ds-text-sm      { font-size: var(--font-sm); }
.ds-text-base    { font-size: var(--font-base); }
.ds-text-md      { font-size: var(--font-md); }
.ds-text-lg      { font-size: var(--font-lg); }
.ds-text-xl      { font-size: var(--font-xl); }
.ds-text-muted   { color: var(--text4); }
.ds-text-secondary { color: var(--text3); }
.ds-text-primary { color: var(--primary); }
.ds-text-success { color: var(--success); }
.ds-text-danger  { color: var(--danger); }
.ds-text-warning { color: var(--warning); }
.ds-text-bold    { font-weight: 600; }
.ds-text-center  { text-align: center; }
.ds-text-right   { text-align: right; }
.ds-text-nowrap  { white-space: nowrap; }
.ds-text-ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ══ 15. 间距工具类 (13) ═════════════════════════════════════════ */

.ds-mt-sm { margin-top: 8px; }     .ds-mt-md { margin-top: 12px; }     .ds-mt-lg { margin-top: 16px; }
.ds-mb-sm { margin-bottom: 8px; }  .ds-mb-md { margin-bottom: 12px; }  .ds-mb-lg { margin-bottom: 16px; }
.ds-p-sm  { padding: 8px; }        .ds-p-md  { padding: 12px; }        .ds-p-lg  { padding: 16px; }
.ds-px-sm { padding-left: 8px; padding-right: 8px; }
.ds-px-md { padding-left: 12px; padding-right: 12px; }
.ds-py-sm { padding-top: 8px; padding-bottom: 8px; }
.ds-py-md { padding-top: 12px; padding-bottom: 12px; }