/* ============================================================================
   BASE — reset minimale + elementi base.
   Niente magie: solo normalizzazioni e stili di default per i contenuti.
   ========================================================================== */
@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    -webkit-text-size-adjust: 100%;
  }

  body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--text-md);
    line-height: var(--leading-normal);
    color: var(--text);
    background: var(--bg);
  }

  h1, h2, h3, h4, p, figure, blockquote, dl, dd {
    margin: 0;
  }

  ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
  }

  input, select, textarea {
    font: inherit;
    color: inherit;
  }

  img, svg {
    display: block;
    max-width: 100%;
  }

  table {
    border-collapse: collapse;
    width: 100%;
  }

  /* Focus visibile su ogni controllo interattivo (accessibilità). */
  :focus-visible {
    outline: 2px solid var(--focus);
    outline-offset: 2px;
  }

  /* Screen reader only. */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }

  /* Skip link per la navigazione da tastiera. */
  .skip-link {
    position: absolute;
    left: var(--space-3);
    top: -48px;
    z-index: 100;
    padding: var(--space-2) var(--space-3);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: top 0.15s ease;
  }
  .skip-link:focus {
    top: var(--space-2);
  }
}

@layer base {
  code, kbd {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.92em;
    background: var(--surface-sunken);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1px 5px;
  }

  ::selection {
    background: var(--brand-soft);
  }

  /* Scrollbar sobria (solo dove serve, niente decorazioni). */
  ::-webkit-scrollbar {
    width: 10px;
    height: 10px;
  }
  ::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 5px;
    border: 2px solid var(--bg);
  }
  ::-webkit-scrollbar-track {
    background: transparent;
  }

  /* Contenuto principale: larghezza leggibile, mai scroll orizzontale. */
  .view {
    max-width: 1120px;
    margin: 0 auto;
    padding: var(--space-5) var(--space-4) var(--space-7);
    min-height: 100%;
  }

  @media (min-width: 768px) {
    .view {
      padding: var(--space-6) var(--space-6) var(--space-7);
    }
  }

  .view__title {
    font-size: var(--text-xl);
    font-weight: 600;
    letter-spacing: -0.01em;
  }
  .view__sub {
    margin-top: 2px;
    font-size: var(--text-sm);
    color: var(--text-muted);
  }
  .view__head {
    margin-bottom: var(--space-5);
  }
  .view__section {
    margin: var(--space-5) 0 var(--space-3);
    font-size: var(--text-lg);
    font-weight: 600;
    letter-spacing: -0.01em;
  }

  /* Griglia di card generica (home, avvisi). */
  .grid {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: 1fr;
  }
  @media (min-width: 768px) {
    .grid--2 { grid-template-columns: 1fr 1fr; }
    .grid--3 { grid-template-columns: repeat(3, 1fr); }
  }
}