/* ============================================================================
   Santuario Maria SS. della Catena — stile sito pubblico
   Palette mariana: blu profondo, oro, avorio. Layout 3 colonne responsive.
   ============================================================================ */

:root{
  --blu:        #1d3c6e;   /* blu Madonna */
  --blu-scuro:  #142a4d;
  --blu-chiaro: #2f5a96;
  --oro:        #b8902f;   /* oro/ocra */
  --oro-chiaro: #d8b659;
  --avorio:     #fbf8f1;
  --crema:      #f3ecdd;
  --inchiostro: #2a2622;
  --grigio:     #6b6258;
  --bordo:      #e4dcc9;
  --bianco:     #ffffff;
  --ombra:      0 2px 10px rgba(20,42,77,.08);
  --ombra-fwd:  0 8px 28px rgba(20,42,77,.16);
  --radius:     12px;
  --serif:      Georgia, "Times New Roman", "Iowan Old Style", serif;
  --serif-titolo: "Trajan Pro", "Hoefler Text", "Didot", "Palatino Linotype", "Book Antiqua", Palatino, Constantia, Georgia, serif;
  --sans:       system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max:        1600px;   /* adatto a schermi 2K (2560px) */
  --header-h:   140px;    /* altezza header sticky (per le colonne laterali) */
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--inchiostro);
  background:var(--avorio);
  line-height:1.65;
  font-size:17px;
  /* pagina alta almeno quanto lo schermo, footer sempre in fondo */
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

img{ max-width:100%; height:auto; display:block; }
a{ color:var(--blu); text-decoration:none; }
a:hover{ text-decoration:underline; }

.wrap{ max-width:var(--max); margin:0 auto; padding:0 20px; }

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--blu); color:#fff;
  padding:10px 16px; z-index:100; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; }

/* ----------------------------- HEADER ----------------------------- */
.site-header{
  /* effetto cielo: alone luminoso in alto + cielo blu che si scurisce verso il basso */
  background:
    radial-gradient(150% 135% at 50% -30%, rgba(255,255,255,.45) 0%, rgba(255,255,255,.12) 40%, rgba(255,255,255,0) 64%),
    linear-gradient(180deg, #4c80bb 0%, #5a8bc6 40%, #3f6cab 74%, #335f9e 100%);
  color:#fff; position:sticky; top:0; z-index:50;
  box-shadow:var(--ombra);
}
.header-inner{ position:relative; display:flex; align-items:center; justify-content:center; padding-top:16px; padding-bottom:16px; }
.brand{ display:flex; align-items:center; gap:18px; color:#fff; }
.brand:hover{ text-decoration:none; }
.brand-logo{
  height:72px; width:auto; flex:0 0 auto; display:block;
}
.brand-text{ display:flex; flex-direction:column; line-height:1.2; }
.brand-title{
  font-family:var(--serif-titolo); font-size:1.85rem; font-weight:700;
  letter-spacing:1.2px; text-shadow:0 1px 4px rgba(13,30,60,.45);
}
.brand-sub{ font-size:.92rem; color:var(--oro-chiaro); text-transform:uppercase; letter-spacing:4px; }

/* stemma accanto al testo dell'header */
.brand-araldo{ height:72px; width:auto; flex:0 0 auto; margin-left:18px; }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:0;
  cursor:pointer; padding:8px;
}
.nav-toggle span{ width:26px; height:3px; background:#fff; border-radius:2px; transition:.25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-8px) rotate(-45deg); }

/* menu sezioni */
.nav-main{ background:transparent; border-top:1px solid rgba(255,255,255,.14); }
.nav-main ul{ list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; justify-content:center; }
.nav-main a{
  display:block; color:#fff; padding:14px 18px; font-weight:600;
  font-size:.96rem; border-bottom:3px solid transparent; transition:.2s;
  text-shadow:0 1px 3px rgba(13,30,60,.4);
}
.nav-main a:hover{ background:rgba(255,255,255,.07); text-decoration:none; }
.nav-main a.attivo{ color:#fff; border-bottom-color:var(--oro-chiaro); background:rgba(255,255,255,.06); }
/* sottomenu pagine: nascosto su desktop (le pagine stanno nella colonna sinistra) */
.nav-main .nav-sub{ display:none; list-style:none; margin:0; padding:0; }

/* ----------------------------- LAYOUT 3 COLONNE ----------------------------- */
.layout-3col{
  display:grid;
  grid-template-columns:280px minmax(0,1fr) 340px;
  gap:32px;
  padding-top:28px; padding-bottom:48px;
  align-items:stretch;      /* le colonne riempiono in altezza lo spazio disponibile */
  flex:1 0 auto;            /* il blocco cresce e spinge il footer in fondo */
  width:100%;
  max-width:var(--max);     /* fino al max-width, poi resta centrato */
  margin-inline:auto;
}
.col-sx, .col-dx{
  display:flex; flex-direction:column; gap:10px;
  position:sticky; top:calc(var(--header-h) + 30px); align-self:start;
  max-height:calc(100vh - var(--header-h) - 24px); overflow:auto;
}
/* nasconde la scrollbar delle colonne laterali finché non serve */
.col-sx::-webkit-scrollbar, .col-dx::-webkit-scrollbar{ width:8px; }
.col-sx::-webkit-scrollbar-thumb, .col-dx::-webkit-scrollbar-thumb{ background:var(--bordo); border-radius:8px; }

/* card generiche delle colonne laterali */
.box{
  background:var(--bianco); border:1px solid var(--bordo);
  border-radius:var(--radius); overflow:hidden; box-shadow:var(--ombra);
}
.box-title{
  margin:0; font-family:var(--serif); font-size:1.05rem; color:#fff;
  background:linear-gradient(180deg,var(--blu),var(--blu-scuro));
  padding:12px 16px; letter-spacing:.3px;
}
.box-body{ padding:14px 16px; font-size:.95rem; }
.box-body :first-child{ margin-top:0; }
.box-body :last-child{ margin-bottom:0; }

/* elenco pagine (sotto-menu di sezione) */
.box-pagine .box-title{ background:linear-gradient(180deg,var(--oro),#9c7822); }
.pagine-list{ list-style:none; margin:0; padding:6px; }
.pagine-list a{
  display:block; padding:10px 12px; border-radius:8px; color:var(--inchiostro);
  font-weight:600; font-size:.95rem; border-left:3px solid transparent;
}
.pagine-list a:hover{ background:var(--crema); text-decoration:none; }
.pagine-list a.attivo{
  background:var(--crema); border-left-color:var(--oro); color:var(--blu);
}

/* ----------------------------- COLONNA CENTRALE ----------------------------- */
.col-main{
  background:var(--bianco); border:1px solid var(--bordo);
  border-radius:var(--radius); box-shadow:var(--ombra);
  padding:34px 38px;
}
.articolo-head{ border-bottom:2px solid var(--crema); margin-bottom:24px; padding-bottom:14px; }
.articolo h1{
  font-family:var(--serif); color:var(--blu); font-size:2rem; line-height:1.2;
  margin:0 0 6px;
}
.articolo h2{ font-family:var(--serif); color:var(--blu-scuro); font-size:1.4rem; margin:1.8em 0 .5em; }
.articolo h3{ font-family:var(--serif); color:var(--oro); font-size:1.15rem; margin:1.4em 0 .4em; }
.sottotitolo{ color:var(--grigio); font-style:italic; font-size:1.05rem; margin:0; }
.articolo-body{ font-size:1.05rem; }
.articolo-body p{ margin:0 0 1.1em; text-align:justify; }
.articolo-img{ margin:0 0 22px; border-radius:var(--radius); overflow:hidden; box-shadow:var(--ombra); }
.firma{ text-align:right; font-weight:700; font-style:italic; color:var(--blu-scuro); margin-top:18px; }
.breadcrumb{ margin:0 0 14px; font-size:.9rem; }
.vuoto-msg{ color:var(--grigio); font-style:italic; padding:30px 0; text-align:center; }

/* prima lettera capolettera nelle pagine lunghe */
.articolo-body > p:first-of-type::first-letter{
  font-family:var(--serif); font-size:3.2rem; line-height:.8; float:left;
  padding:6px 10px 2px 0; color:var(--oro); font-weight:700;
}

/* ----------------------------- GALLERY ----------------------------- */
.anno-gruppo{
  font-family:var(--serif); color:var(--blu); font-size:1.5rem; margin:28px 0 14px;
  padding-bottom:6px; border-bottom:2px solid var(--crema); display:flex; align-items:center; gap:12px;
}
.anno-gruppo::before{ content:"✦"; color:var(--oro); font-size:1rem; }
.anno-gruppo:first-of-type{ margin-top:4px; }
.album-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); gap:20px; }
.album-grid + .anno-gruppo{ margin-top:34px; }
.album-card{ display:block; border-radius:var(--radius); overflow:hidden; background:var(--crema);
  box-shadow:var(--ombra); transition:.2s; color:var(--inchiostro); }
.album-card:hover{ transform:translateY(-3px); box-shadow:var(--ombra-fwd); text-decoration:none; }
.album-cover{ aspect-ratio:4/3; background:var(--blu); display:grid; place-items:center; overflow:hidden; }
.album-cover img{ width:100%; height:100%; object-fit:cover; }
.album-cover-empty{ color:var(--oro-chiaro); font-size:2.4rem; }
.album-meta{ padding:12px 14px; display:flex; flex-direction:column; }
.album-titolo{ font-weight:700; font-family:var(--serif); color:var(--blu); }
.album-conta{ font-size:.82rem; color:var(--grigio); }

.foto-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px; }
.foto-thumb{ aspect-ratio:1/1; overflow:hidden; border-radius:10px; box-shadow:var(--ombra); }
.foto-thumb img{ width:100%; height:100%; object-fit:cover; transition:.3s; }
.foto-thumb:hover img{ transform:scale(1.06); }

/* ----------------------------- CALENDARI ----------------------------- */
.cal-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:22px; }
.cal-card{ margin:0; background:var(--bianco); border:1px solid var(--bordo); border-radius:var(--radius);
  overflow:hidden; box-shadow:var(--ombra); }
.cal-img{ display:block; }
.cal-card figcaption{ padding:12px 14px; display:flex; flex-direction:column; gap:2px; }
.cal-anno{ font-family:var(--serif); font-size:1.4rem; color:var(--oro); font-weight:700; }
.cal-titolo{ font-weight:700; color:var(--blu); }
.cal-desc{ font-size:.88rem; color:var(--grigio); }

/* ----------------------------- FORM ----------------------------- */
.form-contatti{ display:flex; flex-direction:column; gap:16px; max-width:640px; }
.campo-riga{ display:flex; gap:16px; flex-wrap:wrap; }
.campo-riga .campo{ flex:1 1 220px; }
.campo{ display:flex; flex-direction:column; gap:6px; }
.campo label{ font-weight:600; font-size:.92rem; color:var(--blu-scuro); }
.req{ color:#b3261e; }
.campo input, .campo textarea{
  font:inherit; padding:11px 13px; border:1px solid var(--bordo); border-radius:9px;
  background:var(--avorio); transition:.15s;
}
.campo input:focus, .campo textarea:focus{
  outline:none; border-color:var(--blu); box-shadow:0 0 0 3px rgba(29,60,110,.12); background:#fff;
}
.hp{ position:absolute; left:-9999px; }

.btn{
  display:inline-block; padding:12px 22px; border-radius:9px; border:1px solid var(--blu);
  background:#fff; color:var(--blu); font-weight:700; cursor:pointer; font:inherit; transition:.18s;
}
.btn:hover{ background:var(--crema); text-decoration:none; }
.btn-primario{ background:linear-gradient(180deg,var(--blu),var(--blu-scuro)); color:#fff; border-color:var(--blu-scuro); align-self:flex-start; }
.btn-primario:hover{ background:var(--blu-scuro); }

.avviso{ padding:14px 16px; border-radius:10px; margin-bottom:18px; font-weight:600; }
.avviso.ok{ background:#e7f4ea; color:#1e6b35; border:1px solid #bfe2c9; }
.avviso.errore{ background:#fdecea; color:#a3271e; border:1px solid #f3c5c0; }

.mappa{ margin-top:28px; border-radius:var(--radius); overflow:hidden; box-shadow:var(--ombra); }
.mappa iframe{ width:100%; height:420px; border:0; display:block; }

/* ----------------------------- LIGHTBOX ----------------------------- */
.lb-overlay{
  position:fixed; inset:0; background:rgba(15,25,45,.92); display:none;
  align-items:center; justify-content:center; z-index:200; padding:24px;
}
.lb-overlay.aperto{ display:flex; }
.lb-overlay img{ max-width:92vw; max-height:82vh; border-radius:8px; box-shadow:var(--ombra-fwd); }
.lb-caption{ position:absolute; bottom:18px; left:0; right:0; text-align:center; color:#fff; font-size:.95rem; }
.lb-btn{
  position:absolute; top:50%; transform:translateY(-50%); background:rgba(255,255,255,.12);
  color:#fff; border:0; font-size:2rem; width:54px; height:54px; border-radius:50%; cursor:pointer;
}
.lb-prev{ left:18px; } .lb-next{ right:18px; }
.lb-close{ position:absolute; top:16px; right:20px; transform:none; width:46px; height:46px; font-size:1.6rem; }
.lb-btn:hover{ background:rgba(255,255,255,.25); }

/* ----------------------------- FOOTER ----------------------------- */
.site-footer{ background:var(--blu-scuro); color:#cdd6e6; margin-top:auto; }
.footer-inner{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap;
  gap:10px; padding-top:22px; padding-bottom:22px; font-size:.9rem; }
.site-footer a{ color:var(--oro-chiaro); }

/* ----------------------------- RESPONSIVE ----------------------------- */
@media (max-width:1024px){
  .layout-3col{ grid-template-columns:230px minmax(0,1fr); align-items:start; align-content:start; }
  .col-dx{ grid-column:1 / -1; flex-direction:row; flex-wrap:wrap;
           position:static; max-height:none; overflow:visible; }
  .col-dx .box{ flex:1 1 260px; }
}
@media (max-width:760px){
  body{ font-size:16px; }
  .nav-toggle{ display:flex; margin-left:auto; }   /* hamburger spinto a destra */
  .header-inner{ justify-content:flex-start; gap:6px; }
  .nav-main{ display:none; }
  .nav-main.aperto{
    display:block;
    /* se il menu è più alto dello schermo, scorre internamente */
    max-height:calc(100vh - 70px); overflow-y:auto; overscroll-behavior:contain;
    -webkit-overflow-scrolling:touch;
  }
  .nav-main ul{ flex-direction:column; }
  .nav-main a{ border-bottom:1px solid rgba(255,255,255,.08); border-left:3px solid transparent; }
  .nav-main a.attivo{ border-bottom-color:rgba(255,255,255,.08); border-left-color:var(--oro-chiaro); }

  /* su mobile le pagine diventano un sottomenu a scorrimento della sezione */
  .nav-main .nav-sub{
    display:block; background:rgba(0,0,0,.18);
    max-height:0; overflow:hidden; transition:max-height .32s ease;
  }
  .nav-main .nav-sub a{ padding:11px 18px 11px 40px; font-weight:500; font-size:.92rem;
                        color:#d2dcee; border-left:3px solid transparent; }
  .nav-main .nav-sub a::before{ content:"› "; color:var(--oro-chiaro); }
  .nav-main .nav-sub a.attivo{ color:#fff; background:rgba(255,255,255,.07); border-left-color:var(--oro-chiaro); }

  /* freccetta sulla voce di sezione che ha un sottomenu */
  .nav-main li.has-sub > a{ position:relative; }
  .nav-main li.has-sub > a::after{
    content:"⌄"; position:absolute; right:18px; top:50%; transform:translateY(-60%);
    font-size:1.1rem; color:var(--oro-chiaro); transition:transform .3s;
  }
  .nav-main li.has-sub.aperta > a::after{ transform:translateY(-30%) rotate(180deg); }

  /* la colonna pagine a sinistra è ridondante su mobile */
  .box-pagine{ display:none; }

  .layout-3col{ grid-template-columns:1fr; gap:20px; }
  .col-sx, .col-dx{ position:static; max-height:none; overflow:visible; }
  .col-dx{ flex-direction:column; }
  .col-main{ padding:22px 20px; }
  .articolo h1{ font-size:1.55rem; }
  .articolo-body p{ text-align:left; }
  .articolo-body > p:first-of-type::first-letter{ font-size:2.6rem; }
  .brand{ min-width:0; }                 /* lascia restringere il testo, niente overflow */
  .brand-text{ min-width:0; }
  .brand-araldo{ height:50px; margin-left:10px; }
  .brand-logo{ height:72px; }
  .brand-title{ font-size:1.1rem; letter-spacing:.4px; }
  .brand-sub{ font-size:.68rem; letter-spacing:1.5px; }
}