.buttons {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  min-height: 36px;
  padding: 0 17px;
  border: 1px solid var(--surface-muted);
  border-radius: 4px;
  background: var(--surface-muted);
  color: var(--text);
  font-size: 0.875rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  border-color: var(--border-strong);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.08);
}

.btn:active { background: var(--surface-soft); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border);
  border-top-color: var(--g-blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn.loading .btn-spinner { display: inline-block; }
.btn.loading .btn-label { opacity: 0.7; }

@keyframes spin { to { transform: rotate(360deg); } }