/* componenti.css — I componenti riusabili: `.btn`, `.card`, `.badge` (regola 5). Chi costruisce
   qualcosa di nuovo riusa questi invece di farne una variante.

   Uscito da `index.html` il 2026-09-20 (passo 1.1), dove il CSS era il 70%
   del file. ⚠️ L'ORDINE DEI `<link>` E' LA CASCATA: questi fogli sono stati
   tagliati dal foglio unico SENZA riordinare niente, e vanno caricati
   nell'ordine in cui `index.html` li elenca. Spostarne uno cambia quali
   regole vincono, e non alza nessun errore.

   Le regole 2, 3 e 12 di CLAUDE.md valgono qui come valevano prima:
   nessun colore fisso fuori dai temi, nessun valore modificabile nel CSS,
   e la guardia `[hidden]` non si tocca (sta in `base.css`). */

  /* ============================================================
     COMPONENTS — buttons, cards, badges
     ============================================================ */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--btn-text-md);
    border-radius: var(--radius-sm);
    padding: var(--btn-padding-md);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: filter 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.1s ease;
  }

  .btn:active { transform: scale(0.98); }

  .btn:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
  }

  .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
  }

  .btn-primary {
    background: var(--accent);
    color: var(--accent-ink);
  }

  .btn-primary:hover:not(:disabled) { filter: brightness(1.06); }

  .btn-secondary {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
  }

  .btn-secondary:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
  }

  .btn-block { width: 100%; }

  .btn-sm {
    padding: var(--btn-padding-sm);
    font-size: var(--btn-text-sm);
  }

  .btn-lg {
    padding: var(--btn-padding-lg);
    font-size: var(--btn-text-lg);
  }

  .card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
  }

  .panel {
    background: var(--card-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
  }

  /* Inline Lucide SVG icons — inherit color via currentColor so they
     follow whatever ink color their container already uses per theme. */
  .icon {
    width: 1em;
    height: 1em;
    flex-shrink: 0;
  }

  .icon-lg {
    width: 32px;
    height: 32px;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: var(--text-label);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    background: color-mix(in srgb, var(--accent) 14%, var(--card));
    color: var(--accent);
    white-space: nowrap;
  }

  input[type="text"], select, textarea {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text);
    background: var(--card-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 13px 16px;
    width: 100%;
  }

  textarea { resize: vertical; min-height: 90px; }

  input[type="text"]:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 1px;
  }

  input[type="text"]::placeholder, textarea::placeholder { color: var(--text); opacity: 0.45; }

  @media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
  }