/* Guide — CSS base, fase UX. Solo l'essenziale, accessibile.
   La caratterizzazione per museo arriva dai custom property --c1/--c2. */

:root {
  --c1: #1d1d1f;   /* colore primario della location (default neutro) */
  --c2: #6e6e73;   /* colore secondario */
  --bg: #ffffff;
  --fg: #1d1d1f;
  --muted: #55555a; /* contrasto ≥ 4.5:1 su bianco */
  --line: #dddddd;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  font-size: 1.06rem;
  line-height: 1.6;
  background: var(--bg);
  color: var(--fg);
}

/* WCAG 2.4.1 — bypass block */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--fg);
  color: var(--bg);
  padding: .6rem 1rem;
  z-index: 10;
}
.skip-link:focus { left: 0; }

/* WCAG 2.4.7 — focus visibile ovunque */
:focus-visible { outline: 3px solid var(--c1); outline-offset: 2px; }

header[role="banner"], main, footer[role="contentinfo"] {
  max-width: 680px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

a { color: var(--c1); }

h1 { font-size: 1.6rem; line-height: 1.25; margin: .4rem 0 .2rem; }
.subtitle { color: var(--muted); margin: 0 0 1rem; }

/* hero/copertina */
.cover { width: 100%; height: auto; border-radius: 10px; display: block; }

/* logo monocolore ricolorato dal browser (mask CSS) */
.logo {
  display: inline-block;
  width: 120px;
  height: 48px;
  background-color: var(--fg);
  -webkit-mask: var(--logo-url) no-repeat center / contain;
  mask: var(--logo-url) no-repeat center / contain;
}

/* elenco location (home) */
ul.locations { list-style: none; margin: 1rem 0; padding: 0; }
ul.locations li { border: 1px solid var(--line); border-radius: 10px; margin: .75rem 0; }
ul.locations a {
  display: block;
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: var(--fg);
}
ul.locations a:hover { border-color: var(--c1); background: #fafafa; }
ul.locations .loc-name { font-weight: 600; font-size: 1.15rem; }
ul.locations .loc-sub { color: var(--muted); font-size: .95rem; }

/* breadcrumb */
ol.breadcrumb { list-style: none; display: flex; flex-wrap: wrap; gap: .25rem; padding: 0; margin: 0 0 .8rem; font-size: .9rem; color: var(--muted); }
ol.breadcrumb li + li::before { content: "›"; margin-right: .25rem; }
ol.breadcrumb a { color: var(--muted); }

/* selettore lingua */
nav.lang ul { list-style: none; display: flex; gap: .5rem; flex-wrap: wrap; padding: 0; margin: .5rem 0 0; }
nav.lang a, nav.lang [aria-current] {
  display: inline-block;
  padding: .3rem .8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  font-size: .9rem;
}
nav.lang [aria-current="true"] { background: var(--c1); color: #fff; border-color: var(--c1); }
/* lingue dei segni: raggruppate/staccate in fondo */
nav.lang li.is-sign { margin-left: .4rem; padding-left: .5rem; border-left: 1px solid var(--line); }

/* avviso fallback lingua (WCAG: non solo colore) */
.lang-notice {
  border: 1px solid var(--c2);
  border-left-width: 6px;
  border-radius: 8px;
  padding: .7rem 1rem;
  margin: 1rem 0;
  font-size: .95rem;
}

/* disclaimer privacy — layout centrato */
dialog.privacy {
  max-width: 420px;
  width: calc(100% - 2.5rem);
  border: none;
  border-radius: 18px;
  padding: 2.5rem 2rem 2rem;
  text-align: center;
  box-shadow: 0 24px 70px rgba(0, 0, 0, .28);
}
dialog.privacy::backdrop {
  background: rgba(0, 0, 0, .6);
  backdrop-filter: blur(2px);
}

/* logo colorato (esteso): ridimensionato, mai deformato */
dialog.privacy .privacy-logo {
  display: block;
  margin: 0 auto 2rem;
  width: auto;
  height: auto;
  max-width: min(290px, 85%);
  max-height: 115px;
  object-fit: contain;
}
/* fallback: logo monocolore tinto con il colore primario della location */
dialog.privacy .logo.logo--primary {
  display: block;
  margin: 0 auto 2rem;
  width: 250px;
  height: 92px;
  background-color: var(--c1);
}

dialog.privacy h2 {
  font-size: 1.55rem;
  line-height: 1.2;
  color: var(--c1);
  margin: 0 0 .3rem;
}
dialog.privacy .subtitle {
  font-size: 1rem;
  color: var(--muted);
  margin: 0 0 1.4rem;
}

dialog.privacy .privacy-text {
  font-size: .85rem;
  line-height: 1.55;
  color: var(--muted);
  margin: 0 auto 1.5rem;
  max-width: 38ch;
  text-align: left;
}
dialog.privacy .privacy-text p { margin: .4rem 0; }
dialog.privacy .privacy-text a { color: var(--c1); }

dialog.privacy button {
  background: var(--c1);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: .9rem 2rem;
  width: 100%;
  font-size: 1.02rem;
  font-weight: 600;
  cursor: pointer;
}
dialog.privacy button:hover { filter: brightness(1.08); }
dialog.privacy button:focus-visible { outline: 3px solid var(--fg); outline-offset: 2px; }

/* footer */
footer[role="contentinfo"] {
  border-top: 1px solid var(--line);
  margin-top: 2.5rem;
  color: var(--muted);
  font-size: .92rem;
}
.impressum { margin: .8rem 0; }
.impressum summary { cursor: pointer; font-weight: 600; padding: .35rem 0; }
.impressum > div { font-size: .9rem; }

/* media e trascrizione POI */
.poi-media { width: 100%; margin: 1rem 0; border-radius: 10px; display: block; }
audio.poi-media { border-radius: 999px; }
.transcript { margin: 1rem 0; border: 1px solid var(--line); border-radius: 8px; padding: .3rem .9rem; }
.transcript summary { cursor: pointer; font-weight: 600; padding: .5rem 0; }
.meta-duration { color: var(--muted); font-weight: 600; }