/* Intestazione e piè di pagina del sito pubblico (partials/_site_head.php,
   partials/_site_foot.php). Stavano dentro web/catalogo/_layout.php; sono
   usciti da lì perché anche le bacheche e le pagine annuncio
   (web/share/_layout.php) devono avere la stessa cornice: prima avevano
   solo il marchio, senza navigazione né footer (audit 2026-10, §2.2).

   Tutto è sotto .site-head / .site-footer-wrap: le pagine share caricano
   anche components.css, che ha un suo .btn diverso, e le due definizioni
   non devono pestarsi. Misure da tokens.css (--nav-*). */

.site-head { position: sticky; top: 0; z-index: 20; background: var(--color-background-primary); border-bottom: var(--border-thin) solid var(--color-border-tertiary); }
.site-head-inner,
.site-footer-wrap .wrap { width: min(var(--container-wide), calc(100% - 64px)); margin: auto; }
.site-head-inner { min-height: var(--nav-height); display: flex; align-items: center; justify-content: space-between; gap: var(--space-xl); }
.site-head .brand,
.site-footer-wrap .brand { display: flex; align-items: center; gap: var(--space-sm); color: var(--teal-500); font-weight: 800; font-size: 19px; text-decoration: none; }
.site-head .brand-mark,
.site-footer-wrap .brand-mark { width: 28px; height: 28px; display: grid; place-items: center; border-radius: var(--border-radius-md); background: var(--teal-500); color: var(--color-background-primary); flex-shrink: 0; }
.site-head .brand-mark svg,
.site-footer-wrap .brand-mark svg { width: 16px; height: 16px; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { font-size: var(--nav-item-size); font-weight: 600; color: var(--color-text-secondary); text-decoration: none; }
.site-nav a:hover { color: var(--color-text-primary); }
.site-actions { display: flex; align-items: center; gap: var(--space-md); }
/* Icone SVG di icona(): misurate in em come il resto del testo. */
.site-head svg.ti { width: 1em; height: 1em; display: inline-block; vertical-align: -0.125em; flex-shrink: 0; }

.site-head .btn {
    font-family: var(--font-sans); font-weight: 700; font-size: 14px;
    padding: var(--space-sm) var(--space-lg); border-radius: var(--border-radius-md); cursor: pointer;
    border: var(--border-focus) solid var(--color-text-primary); background: var(--color-background-primary); color: var(--color-text-primary);
    display: inline-flex; align-items: center; gap: var(--space-sm); text-decoration: none;
    transition: background-color .15s var(--easing-standard), border-color .15s var(--easing-standard), color .15s var(--easing-standard), transform .1s var(--easing-standard);
}
.site-head .btn:active { transform: scale(0.98); }
.site-head .btn-primary { background: var(--teal-500); border-color: var(--teal-500); color: var(--color-background-primary); }
.site-head .btn-primary:hover { background: var(--teal-700); border-color: var(--teal-700); }
.site-head .btn-ghost { border-color: transparent; color: var(--color-text-secondary); }
.site-head .btn-ghost:hover { color: var(--color-text-primary); }
/* Sotto i 1024px la navigazione testuale sparisce: resta la lente. */
.site-actions .nav-search { display: none; padding: var(--space-sm) var(--space-md); font-size: 17px; }
.site-head svg.accedi-icona { display: none; font-size: 17px; }

.site-footer-wrap { border-top: var(--border-thin) solid var(--color-border-tertiary); background: var(--color-background-secondary); padding: 44px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: var(--space-2xl); margin-bottom: 28px; }
.footer-col h5 { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--color-text-tertiary); margin: 0 0 var(--space-md); }
.footer-col a { display: block; font-size: 15px; color: var(--color-text-primary); text-decoration: none; margin-bottom: var(--space-sm); }
.footer-col a:hover { color: var(--teal-500); }
.footer-col p { font-size: var(--nav-item-size); color: var(--color-text-secondary); max-width: 240px; line-height: 1.5; margin: 10px 0 0; }
.site-footer { font-size: 12px; color: var(--color-text-secondary); border-top: var(--border-thin) solid var(--color-border-tertiary); padding-top: 18px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-sm); }

/* Misure verificate in web/catalogo/_layout.php (storia nei commenti lì). */
@media (max-width: 1023px) {
    .site-nav { display: none; }
    .site-actions .nav-search { display: inline-flex; }
}
@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
    .site-head-inner,
    .site-footer-wrap .wrap { width: min(var(--container-wide), calc(100% - 32px)); }
    .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
    .site-head-inner { gap: 10px; }
    .site-actions { gap: 6px; }
    .site-head .btn { padding: var(--space-sm) var(--space-md); font-size: 13px; }
    .site-head .cta-full { display: none; }
    .site-head .brand { font-size: 17px; }
    .site-head .brand-mark { width: 24px; height: 24px; }
    .site-head svg.accedi-icona { display: inline-block; }
    .accedi-parola { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
}
@media (max-width: 359px) {
    .site-head .brand-word { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
}
@media (pointer: coarse) {
    .site-head .btn { min-height: 44px; }
    .site-actions .nav-search { min-width: 44px; justify-content: center; }
    .site-nav a { display: inline-flex; align-items: center; min-height: 44px; }
    .footer-col a { display: flex; align-items: center; min-height: 44px; margin-bottom: 0; }
}