:root {
  --cb-bg: #f6f7f9;
  --cb-surface: #ffffff;
  --cb-surface-soft: #f0f3f7;
  --cb-text: #172033;
  --cb-muted: #697386;
  --cb-border: #dfe4ea;
  --cb-accent: #3156d3;
  --cb-accent-strong: #2445b5;
  --cb-success: #18794e;
  --cb-warning: #a15c00;
  --cb-danger: #c73535;
  --cb-info: #1769aa;
  --cb-radius-sm: 8px;
  --cb-radius-md: 14px;
  --cb-radius-lg: 20px;
  --cb-shadow: 0 10px 28px rgba(23, 32, 51, .07);
  --cb-font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.cb-app, .cb-app * { box-sizing: border-box; }
.cb-app { color: var(--cb-text); font-family: var(--cb-font); font-size: 16px; line-height: 1.5; }
.cb-app h1, .cb-app h2, .cb-app h3 { margin: 0; color: var(--cb-text); line-height: 1.15; }
.cb-app p { margin: 0; }
.cb-muted { color: var(--cb-muted); }
.cb-stack { display: flex; flex-direction: column; gap: 18px; }
.cb-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.cb-grid { display: grid; gap: 16px; }
.cb-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cb-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cb-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cb-panel { background: var(--cb-surface); border: 1px solid var(--cb-border); border-radius: var(--cb-radius-md); box-shadow: var(--cb-shadow); padding: 22px; }
.cb-button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 16px; border-radius: var(--cb-radius-sm); border: 1px solid transparent; font: inherit; font-weight: 650; text-decoration: none; cursor: pointer; }
.cb-button--primary { background: var(--cb-accent); color: #fff; }
.cb-button--primary:hover { background: var(--cb-accent-strong); color: #fff; }
.cb-button--secondary { background: var(--cb-surface); color: var(--cb-text); border-color: var(--cb-border); }
.cb-button--ghost { background: transparent; color: var(--cb-accent); }
.cb-button--danger { background: var(--cb-danger); color: #fff; }
.cb-badge { display: inline-flex; align-items: center; min-height: 26px; padding: 2px 9px; border-radius: 999px; background: var(--cb-surface-soft); color: var(--cb-muted); font-size: 12px; font-weight: 700; }
.cb-badge--success { background: #e7f6ef; color: var(--cb-success); }
.cb-badge--warning { background: #fff4dd; color: var(--cb-warning); }
.cb-badge--danger { background: #fdeaea; color: var(--cb-danger); }
.cb-badge--info { background: #e7f2fb; color: var(--cb-info); }
.cb-notice { border-radius: var(--cb-radius-sm); padding: 12px 14px; border: 1px solid var(--cb-border); background: var(--cb-surface); }
.cb-notice--success { border-color: #b8dfcd; background: #f0faf5; }
.cb-notice--warning { border-color: #f1d5a5; background: #fff9ed; }
.cb-notice--danger { border-color: #efbcbc; background: #fff4f4; }
.cb-stat { min-height: 132px; padding: 18px; border: 1px solid var(--cb-border); border-radius: var(--cb-radius-md); background: var(--cb-surface); display: flex; flex-direction: column; justify-content: flex-end; }
.cb-stat__value { font-size: 32px; line-height: 1; }
.cb-stat__label { margin-top: 8px; font-weight: 650; }
.cb-stat__hint { margin-top: 3px; color: var(--cb-muted); }
.cb-empty { border: 1px dashed var(--cb-border); border-radius: var(--cb-radius-lg); padding: 42px 24px; text-align: center; background: var(--cb-surface); }
.cb-empty__mark { width: 42px; height: 42px; display: grid; place-items: center; margin: 0 auto 14px; border-radius: 50%; background: var(--cb-surface-soft); font-size: 24px; color: var(--cb-muted); }
.cb-empty p { max-width: 560px; margin: 8px auto 0; color: var(--cb-muted); }
.cb-empty__action { margin-top: 18px; }
@media (max-width: 900px) { .cb-grid--4, .cb-grid--3 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 640px) { .cb-grid--4, .cb-grid--3, .cb-grid--2 { grid-template-columns: 1fr; } }