/* OSCON shared shell. Geometria allineata alla baseline approvata. */
:root { --oscon-orange: #f56600; --oscon-header: #252729; --oscon-footer: #252729; --oscon-shell: min(1180px, calc(100% - 40px)); }
.oscon-bridge-shell { width: var(--oscon-shell); margin-inline: auto; }
.oscon-bridge-header { position: relative; z-index: 100; color: #fff; background: var(--oscon-header); border-bottom: 3px solid var(--oscon-orange); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-size: 1rem; line-height: 1.6; }
.oscon-bridge-header__inner { min-height: 100px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: clamp(1rem, 4vw, 3.5rem); }
.oscon-bridge-brand { display: inline-flex; align-items: center; width: 290px; }
.oscon-bridge-logo { display: block; width: 280px; height: auto; max-height: 96px; object-fit: contain; }
.oscon-bridge-navigation { justify-self: end; }
.oscon-bridge-nav { display: flex; align-items: center; gap: clamp(.75rem, 2.3vw, 2rem); margin: 0; padding: 0; list-style: none; }
.oscon-bridge-nav ul { list-style: none; }
.oscon-bridge-nav li { position: relative; }
.oscon-bridge-nav a { display: block; padding: 1.75rem 0 1.55rem; color: #f8f8f7; font-size: 1rem; font-weight: 700; text-decoration: none; border-bottom: 3px solid transparent; }
.oscon-bridge-nav a:hover, .oscon-bridge-nav a:focus-visible, .oscon-bridge-nav .is-current > a { color: #fff; border-bottom-color: var(--oscon-orange); }
.oscon-bridge-submenu { position: absolute; z-index: 20; top: calc(100% - 3px); left: 0; min-width: 210px; margin: 0; padding: .5rem; visibility: hidden; opacity: 0; background: var(--oscon-header); border: 1px solid rgb(255 255 255 / 16%); border-radius: 0 0 10px 10px; box-shadow: 0 18px 45px rgb(0 0 0 / 18%); transform: translateY(-5px); }
.oscon-bridge-nav li:hover > .oscon-bridge-submenu, .oscon-bridge-nav li:focus-within > .oscon-bridge-submenu { visibility: visible; opacity: 1; transform: none; }
.oscon-bridge-submenu a { padding: .65rem .75rem; border-bottom: 1px solid rgb(255 255 255 / 10%); }
.oscon-bridge-theme-toggle, .oscon-bridge-nav-toggle { appearance: none; display: inline-grid; place-items: center; width: 42px; height: 42px; padding: 0; color: #fff; background: rgb(255 255 255 / 7%); border: 1px solid rgb(255 255 255 / 20%); border-radius: 10px; cursor: pointer; }
.oscon-bridge-nav-toggle { display: none; }
.oscon-bridge-theme-toggle svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.oscon-bridge-theme-toggle__sun { display: none; }
:root[data-theme="dark"] .oscon-bridge-theme-toggle__sun { display: block; }
:root[data-theme="dark"] .oscon-bridge-theme-toggle__moon { display: none; }
.oscon-bridge-theme-toggle[aria-pressed="true"] { color: #fff; background: var(--oscon-orange); border-color: var(--oscon-orange); }
html:not(.oscon-js) .oscon-bridge-theme-toggle { display: none; }
.oscon-bridge-nav-toggle > span[aria-hidden="true"] { display: block; width: 20px; height: 2px; margin: 2px; background: currentColor; border-radius: 2px; }
.oscon-bridge-screen-reader-text { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.oscon-bridge-footer { color: #f4f4f2; background: var(--oscon-footer); border-top: 3px solid var(--oscon-orange); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-size: 1rem; line-height: 1.6; }
.oscon-footer-actions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding-block: 2.6rem; }
.oscon-footer-action { display: flex; align-items: flex-start; gap: 1rem; min-width: 0; padding: .2rem clamp(1rem, 3vw, 2.2rem); color: #f4f4f2; text-decoration: none; border-right: 1px solid rgb(255 255 255 / 15%); }
.oscon-footer-action:first-child { padding-left: 0; }
.oscon-footer-action:last-child { border-right: 0; }
.oscon-footer-action__symbol { flex: 0 0 auto; color: var(--oscon-orange); font-size: 2rem; line-height: 1; }
.oscon-footer-action strong, .oscon-footer-action small { display: block; }
.oscon-footer-action strong { color: var(--oscon-orange); font-size: .9rem; line-height: 1.4; text-transform: uppercase; }
.oscon-footer-action small { margin-top: .4rem; color: #d0d2d3; font-size: .9rem; line-height: 1.5; }
.oscon-footer-action[href]:hover small { color: #fff; }
.oscon-footer-guide-links { margin: .65rem 0 0; padding: 0; list-style: none; }
.oscon-footer-guide-links li + li { margin-top: .35rem; }
.oscon-footer-guide-links a { font-size: .9rem; text-underline-offset: .2em; }
.oscon-bridge-footer-link:link, .oscon-bridge-footer-link:visited { color: #f4f4f2; }
.oscon-bridge-footer-link:hover, .oscon-bridge-footer-link:focus-visible { color: var(--oscon-orange); }
.oscon-footer-action.oscon-bridge-footer-link:link, .oscon-footer-action.oscon-bridge-footer-link:visited { color: #f4f4f2; }
.oscon-footer-action.oscon-bridge-footer-link:hover small, .oscon-footer-action.oscon-bridge-footer-link:focus-visible small { color: #fff; }
.oscon-bridge-footer__legal { display: flex; justify-content: space-between; gap: 1rem; padding-block: 1rem; color: #aeb1b3; border-top: 1px solid rgb(255 255 255 / 14%); font-size: .9rem; line-height: 1.5; }
.oscon-bridge-footer__legal .oscon-bridge-footer-link:link, .oscon-bridge-footer__legal .oscon-bridge-footer-link:visited { color: #d8d9da; }
@media (max-width: 860px) {
  :root { --oscon-shell: min(100% - 28px, 720px); }
  .oscon-bridge-header__inner { grid-template-columns: 1fr auto 1fr; min-height: 0; gap: .45rem 1rem; padding-block: .65rem; }
  .oscon-bridge-brand { grid-column: 1 / -1; grid-row: 1; justify-self: center; justify-content: center; width: min(280px, 100%); }
  .oscon-bridge-logo { width: 270px; max-height: 92px; }
  .oscon-js .oscon-bridge-nav-toggle { display: inline-grid; grid-column: 2; grid-row: 2; justify-self: center; }
  .oscon-bridge-theme-toggle { grid-column: 3; grid-row: 2; justify-self: end; }
  .oscon-bridge-navigation { display: block; position: static; grid-column: 1 / -1; width: 100%; padding: .5rem 14px 1rem; background: var(--oscon-header); border: 1px solid rgb(255 255 255 / 16%); border-bottom: 3px solid var(--oscon-orange); border-radius: 0 0 10px 10px; box-shadow: 0 18px 45px rgb(0 0 0 / 18%); }
  .oscon-js .oscon-bridge-navigation { display: none; position: absolute; top: 100%; right: auto; left: 50%; width: min(320px, calc(100% - 28px)); transform: translateX(-50%); }
  .oscon-js .oscon-bridge-navigation.is-open { display: block; }
  .oscon-bridge-nav { display: block; width: 100%; margin-inline: auto; text-align: center; }
  .oscon-bridge-nav a { padding: .85rem .35rem; border-bottom: 1px solid rgb(255 255 255 / 13%); }
  .oscon-bridge-submenu { position: static; min-width: 0; padding: 0 0 0 1rem; visibility: visible; opacity: 1; border: 0; box-shadow: none; transform: none; }
}
@media (max-width: 560px) {
  .oscon-bridge-brand { width: min(260px, 100%); }
  .oscon-bridge-logo { width: 250px; max-height: 86px; }
  .oscon-footer-actions { grid-template-columns: 1fr; }
  .oscon-footer-action, .oscon-footer-action:first-child { padding: 1rem 0; border-right: 0; border-bottom: 1px solid rgb(255 255 255 / 15%); }
  .oscon-footer-action:last-child { border-bottom: 0; }
  .oscon-bridge-footer__legal { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { .oscon-bridge-header *, .oscon-bridge-footer * { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }
@media print { .oscon-bridge-header, .oscon-bridge-footer, .oscon-bridge-theme-toggle, .oscon-bridge-nav-toggle { display: none !important; } }