@layer components {
  /* ==================== BUTTONS ==================== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 38px;
    padding: 0 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
    background: none;
  }

  .btn:active {
    transform: translateY(1px);
  }

  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 1px 2px rgba(14, 165, 233, 0.3);
  }

  .btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 2px 6px rgba(14, 165, 233, 0.4);
  }

  .btn-secondary {
    background: var(--surface);
    color: var(--text);
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
  }

  .btn-secondary:hover {
    background: var(--bg);
    border-color: #cbd5e1;
  }

  .btn-danger {
    background: var(--danger);
    color: #fff;
  }

  .btn-danger:hover {
    background: #dc2626;
  }

  .btn-sm {
    height: 32px;
    padding: 0 12px;
    font-size: 0.8125rem;
  }

  .btn-lg {
    height: 48px;
    padding: 0 24px;
    font-size: 1rem;
    font-weight: 700;
  }

  /* ==================== CARD ==================== */
  .card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
  }

  .card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text);
  }

  .card-body {
    padding: 20px;
  }

  /* ==================== TABLE ==================== */
  .table-wrap {
    overflow: hidden;
  }

  .table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
  }

  .table th {
    padding: 11px 16px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: #fafbfd;
    white-space: nowrap;
  }

  .table td {
    padding: 13px 16px;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: middle;
    color: var(--text);
  }

  .table tbody tr {
    transition: background 0.1s;
  }

  .table tbody tr:hover {
    background: #f8fbff;
  }

  .table tbody tr:last-child td {
    border-bottom: none;
  }

  .table-empty {
    padding: 52px 16px !important;
    text-align: center !important;
    color: var(--text-soft) !important;
    font-size: 0.9375rem;
  }

  /* ==================== BADGES ==================== */
  .badge {
    display: inline-flex;
    align-items: center;
    height: 22px;
    padding: 0 8px;
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    white-space: nowrap;
  }

  .badge-success {
    background: var(--success-bg);
    color: var(--success-text);
  }

  .badge-danger {
    background: var(--danger-bg);
    color: var(--danger-text);
  }

  .badge-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
  }

  .badge-primary {
    background: var(--primary-light);
    color: var(--primary-dark);
  }

  .badge-default {
    background: #f1f5f9;
    color: var(--text-muted);
  }

  /* ==================== FORMS ==================== */
  .form-group {
    display: grid;
    gap: 6px;
    margin-bottom: 18px;
  }

  .form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
  }

  .form-required {
    margin-left: 2px;
    color: var(--danger);
  }

  .form-help {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.4;
  }

  .form-control {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text);
    font-size: 0.9375rem;
    transition: border-color 0.15s, box-shadow 0.15s;
  }

  .form-control-sm {
    height: 32px;
    padding-left: 10px;
    font-size: 0.8125rem;
  }

  .form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
  }

  .form-control::placeholder {
    color: var(--text-soft);
  }

  select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 34px;
  }

  textarea.form-control {
    height: auto;
    min-height: 90px;
    padding: 10px 12px;
    resize: vertical;
  }

  .form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
  }

  .form-check-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--text);
    user-select: none;
  }

  .form-check-input {
    width: 17px;
    height: 17px;
    cursor: pointer;
    accent-color: var(--primary);
    flex-shrink: 0;
  }

  /* ==================== ALERTS ==================== */
  .alert {
    margin-bottom: 16px;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.5;
  }

  .alert:empty {
    display: none;
  }

  .alert-danger {
    background: var(--danger-bg);
    color: var(--danger-text);
    border-left: 3px solid var(--danger);
  }

  .alert-success {
    background: var(--success-bg);
    color: var(--success-text);
    border-left: 3px solid var(--success);
  }

  /* ==================== NAV ==================== */
  .nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 40px;
    padding: 0 12px;
    border-radius: 6px;
    color: #6b7280;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
  }

  .nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #e2e8f0;
  }

  .nav-link.active {
    background: rgba(14, 165, 233, 0.14);
    color: #38bdf8;
    font-weight: 600;
  }

  .nav-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    stroke: currentColor;
  }

  /* ==================== TOOLBAR ==================== */
  .toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
  }

  .toolbar h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
  }

  .actions {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .form-inline {
    display: inline-flex;
    align-items: center;
  }
}