/* Buttons (modern) */
.btn {
  padding: 9px 18px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  display: inline-flex;
  align-items: center;
  column-gap: 6px;
}

.btn:active { transform: scale(0.97); }
.btn:focus  { outline: none; }

.btn-primary        { background-color: var(--color1); color: white; }
.btn-primary:hover  { background-color: var(--color5); }

.btn-secondary       { background-color: #e8e8e8; color: #444; }
.btn-secondary:hover { background-color: #ddd; }

.btn-danger       { background-color: var(--errorColor); color: white; }
.btn-danger:hover { background-color: #c00; }

/* Icon Buttons (table actions) */
.btn-icon {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: background-color 0.2s;
  background-color: #f0f0f0;
  color: #555;
}

.btn-icon:hover  { background-color: #e0e0e0; }
.btn-icon:focus  { outline: none; }

.btn-icon-edit:hover        { background-color: var(--color3); color: var(--color1); }
.btn-icon-delete:hover      { background-color: #ffe6e6; color: var(--errorColor); }
.btn-icon-enable:hover      { background-color: #e6f9e6; color: #2e7d32; }
.btn-icon-password:hover    { background-color: var(--color3); color: var(--color1); }
.btn-icon-detail:hover      { background-color: var(--color3); color: var(--color1); }
.btn-icon-photo:hover       { background-color: #f3e8ff; color: #7c3aed; }
.btn-icon-credential:hover  { background-color: var(--color3); color: var(--color1); }
.btn-icon-certificate:hover { background-color: #e6f9e6; color: #2e7d32; }

/* Button Link */
.btn-link {
  background: none;
  border: none;
  color: var(--color1);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  padding: 4px 0;
  display: inline-flex;
  align-items: center;
  column-gap: 4px;
  transition: opacity 0.2s;
}

.btn-link:hover  { opacity: 0.75; }
.btn-link:focus  { outline: none; }

/* Button Small */
.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
}