:root {
  --sh-core-blue-900: #174f9b;
  --sh-core-blue-600: #2d7fd1;
  --sh-core-sky-500: #55b9e8;
  --sh-core-ink: #172033;
  --sh-core-muted: #68748a;
  --sh-core-border: #dfe5ee;
  --sh-core-background: #f5f7fb;
  --sh-core-surface: #ffffff;
  --sh-core-success: #16845b;
  --sh-core-danger: #b52e35;
  --sh-core-radius-sm: 10px;
  --sh-core-radius-md: 14px;
  --sh-core-radius-lg: 18px;
  --sh-core-shadow-card: 0 8px 24px rgba(27, 67, 121, 0.07);
  --sh-core-font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.sh-core-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--sh-core-radius-sm);
  background: var(--sh-core-blue-900);
  color: white;
  padding: 0 16px;
  font: 750 14px/1 var(--sh-core-font);
}

.sh-core-button--secondary {
  border: 1px solid var(--sh-core-border);
  background: var(--sh-core-surface);
  color: var(--sh-core-blue-900);
}

.sh-core-card {
  border: 1px solid var(--sh-core-border);
  border-radius: var(--sh-core-radius-lg);
  background: var(--sh-core-surface);
  box-shadow: var(--sh-core-shadow-card);
  padding: 22px;
}

.sh-core-badge {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  border-radius: 999px;
  background: #eef4fb;
  color: var(--sh-core-blue-900);
  padding: 6px 10px;
  font: 800 11px/1 var(--sh-core-font);
}

.sh-core-empty-state {
  display: grid;
  justify-items: center;
  gap: 8px;
  border: 1px dashed var(--sh-core-border);
  border-radius: var(--sh-core-radius-lg);
  background: var(--sh-core-surface);
  padding: 32px;
  text-align: center;
}

.sh-core-empty-state h3,
.sh-core-empty-state p { margin: 0; }
.sh-core-empty-state p { color: var(--sh-core-muted); }

.sh-core-avatar {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sh-core-blue-900), var(--sh-core-sky-500));
  color: white;
  object-fit: cover;
  font: 850 14px/1 var(--sh-core-font);
}

.sh-core-avatar--small { width: 38px; height: 38px; }
.sh-core-avatar--medium { width: 56px; height: 56px; }
.sh-core-avatar--large { width: 78px; height: 78px; font-size: 22px; }

.sh-core-notification {
  border: 1px solid var(--sh-core-border);
  border-radius: var(--sh-core-radius-md);
  background: var(--sh-core-surface);
  padding: 16px;
}

.sh-core-notification.is-unread { border-left: 4px solid var(--sh-core-blue-600); }
.sh-core-notification p { margin: 6px 0 0; color: var(--sh-core-muted); }

.sh-core-module-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--sh-core-muted);
  font-size: 12px;
}