/* Shared Components — Buttons, Cards, Forms, Badges, Toasts, Toggle */

@layer components {

  /* ---- Buttons ---- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
    white-space: nowrap;
    line-height: 1.4;
  }
  .btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
  }

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

  .btn-success {
    background: var(--color-success);
    color: #fff;
  }
  .btn-success:hover { background: color-mix(in srgb, var(--color-success), white 12%); }

  .btn-danger {
    background: var(--color-danger);
    color: #fff;
  }
  .btn-danger:hover { background: color-mix(in srgb, var(--color-danger), white 12%); }

  .btn-warning {
    background: var(--color-warning);
    color: #111;
  }
  .btn-warning:hover { background: color-mix(in srgb, var(--color-warning), white 12%); }

  .btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
  }
  .btn-ghost:hover {
    background: var(--surface-3);
    color: var(--text-primary);
    border-color: var(--border-default);
  }

  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
    border-radius: var(--radius-md);
  }

  .btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
  }

  .btn-icon {
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    background: transparent;
  }
  .btn-icon:hover {
    background: var(--surface-3);
    color: var(--text-primary);
  }

  /* ---- Cards ---- */
  .card {
    background: var(--surface-2);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: box-shadow var(--transition-base);
  }
  .card:hover {
    box-shadow: var(--shadow-sm);
  }

  .card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
  }

  .card-title {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
  }

  /* ---- Forms ---- */
  .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
  }

  .form-label {
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }

  .form-input,
  .form-select,
  .form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: var(--surface-0);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--text-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  }
  .form-input:focus,
  .form-select:focus,
  .form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
    outline: none;
  }
  .form-input::placeholder,
  .form-textarea::placeholder {
    color: var(--text-muted);
  }

  .form-select {
    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='%239898a8' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-2) center;
    padding-right: var(--space-8);
  }

  .form-textarea {
    resize: vertical;
    min-height: 72px;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    line-height: 1.6;
  }

  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }
  @media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
  }

  .form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
  }
  .form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
  }
  .form-check label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    cursor: pointer;
  }

  /* ---- Badges ---- */
  .badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px var(--space-2);
    font-size: 11px;
    font-weight: var(--weight-semibold);
    border-radius: var(--radius-full);
    line-height: 1.4;
  }
  .badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
  }

  .badge-success {
    background: var(--color-success-subtle);
    color: var(--color-success);
  }
  .badge-success .badge-dot { background: var(--color-success); }

  .badge-danger {
    background: var(--color-danger-subtle);
    color: var(--color-danger);
  }
  .badge-danger .badge-dot { background: var(--color-danger); }

  .badge-warning {
    background: var(--color-warning-subtle);
    color: var(--color-warning);
  }
  .badge-warning .badge-dot { background: var(--color-warning); }

  .badge-muted {
    background: var(--surface-3);
    color: var(--text-secondary);
  }
  .badge-muted .badge-dot { background: var(--text-muted); }

  /* ---- Toast ---- */
  .toast-container {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    pointer-events: none;
  }
  .toast {
    pointer-events: auto;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: #fff;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateX(20px);
    transition: opacity var(--transition-base), transform var(--transition-base);
  }
  .toast.show {
    opacity: 1;
    transform: translateX(0);
  }
  .toast-success { background: var(--color-success); }
  .toast-error { background: var(--color-danger); }
  .toast-warn { background: var(--color-warning); color: #111; }

  /* ---- Status badge (connected/disconnected) ---- */
  .status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
  }
  .status-connected {
    background: var(--color-success-subtle);
    color: var(--color-success);
  }
  .status-connecting {
    background: var(--color-warning-subtle);
    color: var(--color-warning);
  }
  .status-disconnected {
    background: var(--surface-3);
    color: var(--text-muted);
  }

  /* ---- Transcript ---- */
  .transcript {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }
  .transcript-entry {
    font-size: var(--text-sm);
    line-height: 1.5;
  }
  .transcript-user {
    color: #60a5fa;
  }
  .transcript-assistant {
    color: var(--color-success);
  }
  .transcript-placeholder {
    color: var(--text-muted);
    text-align: center;
    font-size: var(--text-sm);
    padding: var(--space-4);
  }

  /* ---- Spinner ---- */
  .spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2.5px solid var(--border-subtle);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  .spinner-sm {
    width: 14px;
    height: 14px;
    border-width: 2px;
  }

  /* ---- Range Slider ---- */
  .form-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--surface-3);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
    margin-top: var(--space-1);
  }
  .form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 2px solid var(--surface-1);
    box-shadow: 0 0 0 2px var(--color-primary-subtle);
    cursor: pointer;
    transition: box-shadow var(--transition-fast);
  }
  .form-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 2px solid var(--surface-1);
    box-shadow: 0 0 0 2px var(--color-primary-subtle);
    cursor: pointer;
  }
  .form-range:focus-visible::-webkit-slider-thumb {
    box-shadow: 0 0 0 3px var(--color-primary-subtle);
  }

  .slider-value {
    float: right;
    font-weight: var(--weight-semibold);
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
  }
}