/* ==========================================================================
   TPM International Conference 2026 — tpm.swagadv.it
   Sistema visivo derivato da "PROPOSTA B. IDENTITY nuova TPM".
   Tre voci tipografiche: Bricolage Grotesque (titoli), IBM Plex Sans (testi),
   IBM Plex Mono (orari, panel, date), Instrument Serif italic (accenti).
   ========================================================================== */

:root{
  /* Palette d'identità */
  --blu:        #101B4D;   /* Blu Parthenope */
  --disaq:      #3B2E8F;
  --magenta:    #D01E52;
  --memi:       #C9102E;
  --nebbia:     #A9C9E8;   /* Azzurro nebbia */
  --freddo:     #F2F4F8;   /* Bianco freddo */

  --blu-800:    #0B1338;
  --blu-600:    #1B2A6E;
  --inchiostro: #141A2E;
  --grigio:     #5B6480;
  --grigio-2:   #8A93AB;
  --bordo:      rgba(16,27,77,.12);
  --bordo-scuro:rgba(255,255,255,.14);

  --display: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;
  --testo:   "IBM Plex Sans", system-ui, -apple-system, Segoe UI, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --serif:   "Instrument Serif", Georgia, serif;

  --mx: clamp(22px, 5vw, 92px);          /* margine orizzontale */
  --sez: clamp(84px, 12vw, 172px);       /* respiro verticale fra sezioni */
  --r: 18px;                              /* raggio angoli */
  --r-lg: 28px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --h-nav: 68px;                          /* altezza dell'header, costante */
}

/* --- reset essenziale ---------------------------------------------------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth;
  scroll-padding-top:calc(var(--h-nav) + 26px); }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }
body{
  margin:0; background:var(--freddo); color:var(--inchiostro);
  font-family:var(--testo); font-size:17px; line-height:1.6;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; }
button{ font:inherit; }
h1,h2,h3,h4{ font-family:var(--display); font-weight:800; line-height:1.02;
  letter-spacing:-.025em; margin:0; }
p{ margin:0; }
::selection{ background:var(--magenta); color:#fff; }

.wrap{ max-width:1280px; margin-inline:auto; padding-inline:var(--mx); }
.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; }

/* --- elementi ricorrenti d'identità -------------------------------------- */

/* Occhiello monospaziato: il "registro dati" dell'identità */
.kicker{
  font-family:var(--mono); font-size:12px; font-weight:500;
  letter-spacing:.22em; text-transform:uppercase; color:var(--magenta);
  display:inline-flex; align-items:center; gap:.7em; margin:0 0 22px;
}
.kicker::after{ content:""; width:5px; height:5px; border-radius:50%;
  background:currentColor; }
.su-scuro .kicker{ color:var(--nebbia); }
.su-scuro .kicker::after{ background:var(--magenta); }

/* Il punto magenta del logo, usato come chiusura dei titoli di sezione */
.punto{ color:var(--magenta); }

.titolo-sez{ font-size:clamp(34px,5.2vw,64px); max-width:16ch; }
.occhio-serif{ font-family:var(--serif); font-style:italic; font-weight:400;
  letter-spacing:0; }

/* --- bottoni ------------------------------------------------------------- */
.btn{
  --bg:var(--magenta); --fg:#fff;
  display:inline-flex; align-items:center; gap:.65em;
  background:var(--bg); color:var(--fg);
  font-family:var(--mono); font-size:13px; font-weight:500;
  letter-spacing:.14em; text-transform:uppercase; text-decoration:none;
  padding:16px 26px; border:0; border-radius:999px; cursor:pointer;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .25s;
  box-shadow:0 1px 0 rgba(0,0,0,.04);
}
.btn:hover{ transform:translateY(-2px); box-shadow:0 12px 28px -12px rgba(208,30,82,.6); }
.btn:active{ transform:translateY(0); }
.btn .freccia{ transition:transform .35s var(--ease); }
.btn:hover .freccia{ transform:translateX(4px); }
.btn--grande{ padding:20px 34px; font-size:14px; letter-spacing:.15em; }
.btn--fantasma{ --bg:transparent; --fg:var(--blu); box-shadow:inset 0 0 0 1px var(--bordo); }
.btn--fantasma:hover{ box-shadow:inset 0 0 0 1px var(--blu); }
.su-scuro .btn--fantasma{ --fg:#fff; box-shadow:inset 0 0 0 1px var(--bordo-scuro); }
.su-scuro .btn--fantasma:hover{ box-shadow:inset 0 0 0 1px rgba(255,255,255,.5); }

:where(a,button,input,select,textarea):focus-visible{
  outline:2px solid var(--magenta); outline-offset:3px; border-radius:4px;
}

/* ==========================================================================
   Navigazione
   ========================================================================== */
.nav{
  position:fixed; inset:0 0 auto; z-index:100;
  display:flex; align-items:center; gap:24px;
  padding:0 var(--mx); height:var(--h-nav);
  transition:background .35s var(--ease), box-shadow .35s var(--ease);
}
.nav__logo{ display:flex; align-items:center; gap:14px; text-decoration:none;
  color:#fff; flex:0 0 auto; }
.nav__logo svg{ width:56px; height:auto; transition:width .4s var(--ease); }
.nav__logo span{ font-family:var(--mono); font-size:9px; letter-spacing:.15em;
  text-transform:uppercase; line-height:1.55; opacity:.7; white-space:nowrap;
  border-left:1px solid currentColor; padding-left:12px; }
/* Su desktop e' una barra fissa alta quanto l'header, centrata sulla finestra:
   cosi' resta al suo posto senza stare dentro l'header. */
.nav__menu{
  position:fixed; top:0; left:0; right:0; z-index:101;
  height:var(--h-nav); display:flex; align-items:center; justify-content:center;
  pointer-events:none;
}
.nav__menu-corpo{ display:flex; align-items:center; gap:30px; pointer-events:auto; }
.nav__cta-mobile, .nav__menu-pie{ display:none; }
.nav__menu a:not(.btn){
  font-family:var(--mono); font-size:12px; letter-spacing:.12em;
  text-transform:uppercase; text-decoration:none; color:#fff; opacity:.72;
  padding:6px 0; position:relative; transition:opacity .25s;
}
.nav__menu a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--magenta); transition:right .35s var(--ease);
}
.nav__menu a:hover{ opacity:1; }
.nav__menu a:hover::after,
.nav__menu a[aria-current="true"]::after{ right:0; }
.nav__menu a[aria-current="true"]{ opacity:1; }
.nav__cta{ margin-left:auto; }
.nav .btn{ padding:12px 20px; font-size:11px; }

/* stato compatto, dopo lo scroll */
/* Niente backdrop-filter: costa un ricomposito a ogni frame di scroll sul
   telefono, e soprattutto renderebbe l'header il riferimento di ogni elemento
   a posizione fissa che gli stia dentro. Un fondo pieno costa zero. */
.nav.is-solid{
  background:rgba(11,19,56,.94);
  box-shadow:0 1px 0 rgba(255,255,255,.08);
}
.nav.is-solid .nav__logo svg{ width:48px; }

.nav__toggle{ display:none; background:none; border:0; color:#fff; padding:0;
  cursor:pointer; }

/* --- hamburger: tre linee che diventano una X --- */
.nav__burger{ display:block; width:22px; height:14px; position:relative; }
.nav__burger i{
  position:absolute; left:0; right:0; height:2px; border-radius:2px;
  background:currentColor;
  transition:transform .4s var(--ease), opacity .2s var(--ease);
}
.nav__burger i:nth-child(1){ top:0; }
.nav__burger i:nth-child(2){ top:6px; }
.nav__burger i:nth-child(3){ top:12px; }
html.menu-aperto .nav__burger i:nth-child(1){ transform:translateY(6px) rotate(45deg); }
html.menu-aperto .nav__burger i:nth-child(2){ opacity:0; }
html.menu-aperto .nav__burger i:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

@media (max-width:1000px){
  /* tre colonne: hamburger a sinistra, marchio esattamente al centro */
  .nav{ display:grid; grid-template-columns:44px 1fr 44px; gap:0; height:var(--h-nav); }
  .nav__toggle{
    display:grid; place-items:center; grid-column:1; justify-self:start;
    width:44px; height:44px; margin-left:-11px; position:relative; z-index:2;
  }
  .nav__logo{ grid-column:2; justify-self:center; position:relative; z-index:2; }
  .nav__logo span{ display:none; }
  .nav__cta{ display:none; }

  .nav__menu{
    inset:0; height:100%; z-index:99; display:block; padding:0;
    background:var(--blu-800); pointer-events:auto;
    transform:translateY(-101%); transition:transform .4s var(--ease);
    overflow-y:auto; overscroll-behavior:contain;
    visibility:hidden;
  }
  html.menu-aperto .nav__menu{ transform:none; visibility:visible; }

  .nav__menu-corpo{
    min-height:100%; display:flex; flex-direction:column; align-items:flex-start;
    gap:2px; padding:calc(var(--h-nav) + 30px) var(--mx) 40px;
  }
  .nav__menu a:not(.btn){
    font-family:var(--display); font-weight:700; font-size:clamp(26px,7vw,34px);
    letter-spacing:-.03em; text-transform:none; opacity:1; padding:10px 0;
  }
  .nav__menu a::after{ display:none; }
  .nav__cta-mobile{
    display:inline-flex; margin-top:30px; align-self:stretch; justify-content:center;
    font-size:12px; padding:18px 26px;
  }
  .nav__menu-pie{
    display:block; margin-top:auto; padding-top:36px;
    font-family:var(--mono); font-size:11px; letter-spacing:.16em;
    text-transform:uppercase; color:rgba(255,255,255,.45); line-height:1.8;
  }

  /* Con il menu aperto la pagina sotto e' bloccata davvero: su iOS
     overflow:hidden da solo non basta. */
  html.menu-aperto{ overflow:hidden; }
  html.menu-aperto body{ position:fixed; left:0; right:0; width:100%; overflow:hidden; }
  /* l'header resta pieno anche sopra il pannello */
  html.menu-aperto .nav{ background:var(--blu-800); box-shadow:none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero.su-scuro{
  position:relative; min-height:100svh; display:flex; flex-direction:column;
  justify-content:flex-end; overflow:hidden; color:#fff;
  padding-bottom:clamp(36px,6vw,64px);
  background:
    radial-gradient(125% 85% at 2% 4%,   rgba(70,54,168,.80) 0%, rgba(70,54,168,0) 58%),
    radial-gradient(105% 72% at 100% 18%, rgba(45,66,165,.70) 0%, rgba(45,66,165,0) 62%),
    radial-gradient(95% 65% at 52% 108%,  rgba(169,201,232,.17) 0%, rgba(169,201,232,0) 68%),
    linear-gradient(165deg, #141F58 0%, var(--blu-800) 58%, #090E2B 100%);
}
/* Il campo di colore e' un gradiente del contenitore. Prima erano tre cerchi
   sfocati (blur 90px) animati all'infinito: bellissimi e ingestibili per un
   telefono, che li ricomponeva a ogni frame di scroll. Reso identico, a costo zero. */

/* grana: toglie il "digitale" dal gradiente e dà profondità di stampa */
/* Tassello di 64x64 ripetuto, 1,8 KB. Prima era un feTurbulence in SVG con
   mix-blend-mode: due cose che obbligano il browser a un livello separato. */
.grana{
  position:absolute; inset:0; z-index:1; pointer-events:none; opacity:.05;
  background-image:url("grana.png"); background-repeat:repeat;
}

.hero__corpo{ position:relative; z-index:2; width:100%; }
.hero__testa{
  display:flex; flex-wrap:wrap; align-items:baseline; gap:12px 22px;
  margin-bottom:clamp(20px,3vw,34px);
}
.hero__testa .mono{
  font-family:var(--mono); font-size:clamp(11px,1.1vw,13px); font-weight:500;
  letter-spacing:.26em; text-transform:uppercase; color:rgba(255,255,255,.82);
}
.hero__testa .mono b{ color:#fff; font-weight:500; }

.hero h1{ font-size:clamp(44px,8.4vw,116px); letter-spacing:-.035em; }
.hero h1 .riga{ display:block; }
.hero h1 .riga + .riga{ display:flex; flex-wrap:wrap; align-items:center;
  gap:.22em; margin-top:.02em; }
/* "Clicks" nel blocco magenta, come sulla locandina */
.hero h1 mark{
  background:var(--magenta); color:#fff; border-radius:12px;
  padding:.04em .28em .1em; display:inline-block;
  transform:rotate(-.6deg);
}
.hero__payoff{
  font-size:clamp(16px,1.6vw,21px); line-height:1.5; max-width:46ch;
  color:rgba(255,255,255,.88); margin-top:clamp(20px,2.6vw,32px);
}
.hero__payoff b{ font-weight:600; color:#fff; }

.hero__fondo{
  display:grid; grid-template-columns:1fr auto; gap:clamp(24px,4vw,56px);
  align-items:end; margin-top:clamp(34px,5vw,64px);
  padding-top:clamp(22px,3vw,32px); border-top:1px solid var(--bordo-scuro);
}
.hero__dove{ font-size:15px; line-height:1.65; color:rgba(255,255,255,.82); }
.hero__dove .etichetta{
  font-family:var(--mono); font-size:11px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--nebbia); display:block; margin-bottom:8px;
}
.hero__dove strong{ color:#fff; font-weight:600; }
.hero__azioni{ display:flex; flex-wrap:wrap; gap:12px; }

/* countdown */
.countdown{ display:flex; gap:clamp(14px,2vw,26px); margin-top:26px; }
.countdown div{ text-align:left; }
.countdown .n{
  font-family:var(--mono); font-size:clamp(24px,3vw,36px); font-weight:500;
  line-height:1; color:#fff; font-variant-numeric:tabular-nums;
}
.countdown .l{
  font-family:var(--mono); font-size:10px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--nebbia); margin-top:6px;
}

@media (max-width:820px){
  /* L'occhiello deve stare sotto l'header, non fluttuare a meta' schermo:
     il corpo occupa l'altezza utile e distribuisce testa e piede agli estremi. */
  .hero{ justify-content:stretch; padding-top:0; padding-bottom:clamp(28px,6vw,40px); }
  .hero__corpo{
    min-height:calc(89svh - clamp(28px,6vw,40px));
    padding-top:clamp(84px,19vw,104px);
    display:flex; flex-direction:column; justify-content:flex-start;
  }
  .hero__testa{ gap:6px 16px; margin-bottom:clamp(26px,7vw,36px); }
  .hero__payoff{ margin-top:clamp(18px,4.5vw,26px); }

  /* il piede si stacca da solo verso il basso, il resto resta compatto in alto */
  .hero__fondo{ grid-template-columns:1fr; align-items:start; gap:26px;
    margin-top:auto; padding-top:clamp(26px,7vw,36px); }
  .hero__azioni{ width:100%; flex-direction:column; align-items:stretch; }
  .hero__azioni .btn{ justify-content:center; }
  .countdown{ margin-top:22px; }
}

/* ==========================================================================
   Barra promotori (subito sotto l'hero, su scuro)
   ========================================================================== */
.promotori{ background:var(--blu-800); color:#fff;
  padding:clamp(30px,4.5vw,56px) 0 clamp(44px,6.5vw,80px); }
.promotori__label{
  font-family:var(--mono); font-size:10px; letter-spacing:.24em;
  text-transform:uppercase; color:rgba(255,255,255,.45);
  text-align:center; margin-bottom:26px;
}
/* Ogni marchio sta in un riquadro identico e i file sono gia' normalizzati
   a pari area d'inchiostro: cosi' nessuno schiaccia gli altri. */
.promotori__righe{
  display:flex; flex-wrap:wrap; justify-content:center; align-items:center;
  gap:clamp(8px,1.6vw,20px);
}
.promotori__righe img{
  width:clamp(96px,9.6vw,132px); height:auto; opacity:.66;
  transition:opacity .35s var(--ease);
}
.promotori__righe img:hover{ opacity:1; }

/* ==========================================================================
   Sezioni generiche
   ========================================================================== */
.sez{ padding-block:var(--sez); }
.su-scuro{ background:var(--blu); color:#fff; }
.su-scuro h2,.su-scuro h3{ color:#fff; }

.sez__testa{ display:grid; grid-template-columns:1fr; gap:clamp(20px,3vw,40px);
  margin-bottom:clamp(46px,5.5vw,84px); }
@media (min-width:900px){
  .sez__testa{ grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    align-items:end; }
}
.sez__testa p{ color:var(--grigio); font-size:clamp(16px,1.5vw,19px); max-width:52ch; }
.su-scuro .sez__testa p{ color:rgba(255,255,255,.72); }

/* --- Il progetto --------------------------------------------------------- */
.progetto__claim{
  font-family:var(--display); font-weight:700;
  font-size:clamp(23px,2.8vw,38px); line-height:1.22; letter-spacing:-.022em;
  max-width:24ch;
}
.progetto__claim em{ font-family:var(--serif); font-style:italic; font-weight:400;
  color:var(--nebbia); letter-spacing:0; }

.numeri{
  display:grid; gap:1px; background:var(--bordo-scuro);
  border:1px solid var(--bordo-scuro); border-radius:var(--r-lg); overflow:hidden;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  margin-top:clamp(44px,6vw,80px);
}
.numeri div{ background:var(--blu); padding:clamp(26px,3.2vw,40px); }
.numeri .n{
  font-family:var(--display); font-weight:800; font-size:clamp(38px,4.4vw,60px);
  line-height:1; letter-spacing:-.04em;
}
.numeri .n span{ color:var(--magenta); }
.numeri .t{
  font-family:var(--mono); font-size:11px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--nebbia); margin:14px 0 10px;
}
.numeri .d{ font-size:14px; line-height:1.55; color:rgba(255,255,255,.64); }

/* ==========================================================================
   Programma
   ========================================================================== */
.filtri{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:clamp(32px,4vw,48px); }
.filtri button{
  font-family:var(--mono); font-size:11px; letter-spacing:.14em;
  text-transform:uppercase; padding:11px 18px; border-radius:999px;
  border:1px solid var(--bordo); background:transparent; color:var(--grigio);
  cursor:pointer; transition:all .25s var(--ease);
}
.filtri button:hover{ border-color:var(--blu); color:var(--blu); }
.filtri button[aria-pressed="true"]{
  background:var(--blu); border-color:var(--blu); color:#fff;
}

.slot{
  display:grid; grid-template-columns:132px minmax(0,1fr);
  gap:clamp(16px,3vw,44px);
  padding-block:clamp(30px,3.8vw,48px);
  border-top:1px solid var(--bordo);
  transition:opacity .35s var(--ease);
}
.slot:last-child{ border-bottom:1px solid var(--bordo); }
.slot[hidden]{ display:none; }

.slot__ora{ position:sticky; top:96px; align-self:start; }
.slot__ora .ora{
  font-family:var(--mono); font-size:15px; font-weight:500; letter-spacing:.06em;
  color:var(--blu); display:block;
}
.slot__ora .sala{
  font-family:var(--mono); font-size:10px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--grigio-2); margin-top:8px; display:block;
  line-height:1.5;
}
.slot__ora .parallela{
  display:inline-block; margin-top:10px; padding:4px 10px; border-radius:999px;
  background:var(--magenta); color:#fff;
  font-family:var(--mono); font-size:9px; letter-spacing:.14em; text-transform:uppercase;
}

.slot__occhiello{
  font-family:var(--mono); font-size:11px; letter-spacing:.18em;
  text-transform:uppercase; color:var(--magenta); margin-bottom:10px;
}
.slot h3{ font-size:clamp(25px,3.2vw,40px); letter-spacing:-.03em; }
.slot__desc{
  font-family:var(--serif); font-style:italic; font-size:clamp(18px,2vw,25px);
  line-height:1.35; color:var(--disaq); margin-top:10px; max-width:40ch;
}
.slot__gruppi{ margin-top:clamp(20px,2.4vw,30px); display:grid;
  gap:clamp(16px,2vw,24px); }
.gruppo__label{
  font-family:var(--mono); font-size:10px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--grigio-2); margin-bottom:10px;
}
.gruppo ul{ list-style:none; margin:0; padding:0; display:grid; gap:7px; }
.gruppo li{ font-size:15.5px; line-height:1.5; color:var(--grigio); }
.gruppo li b{ color:var(--inchiostro); font-weight:600; }
.gruppo li b::after{ content:" | "; color:var(--grigio-2); font-weight:400; }

.slot--pausa{ align-items:center; }
.slot--pausa h3{ font-size:clamp(20px,2.2vw,26px); color:var(--grigio); font-weight:700; }

@media (max-width:760px){
  .slot{ grid-template-columns:1fr; gap:14px; }
  .slot__ora{ position:static; display:flex; flex-wrap:wrap; align-items:center; gap:10px; }
  .slot__ora .sala{ margin-top:0; }
  .slot__ora .parallela{ margin-top:0; }
}

/* ==========================================================================
   Relatori
   ========================================================================== */
.relatori{
  display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr));
  gap:1px; background:var(--bordo-scuro);
  border:1px solid var(--bordo-scuro); border-radius:var(--r-lg); overflow:hidden;
}
.relatore{
  background:var(--blu); padding:clamp(22px,2.6vw,32px);
  display:flex; gap:16px; align-items:flex-start;
  transition:background .3s var(--ease);
}
.relatore:hover{ background:#16225C; }
.relatore .sigla{
  flex:0 0 auto; width:44px; height:44px; border-radius:50%;
  display:grid; place-items:center;
  font-family:var(--mono); font-size:13px; font-weight:500; letter-spacing:.03em;
  background:rgba(169,201,232,.14); color:var(--nebbia);
}
.relatore .nome{ font-family:var(--display); font-weight:700; font-size:17px;
  letter-spacing:-.015em; line-height:1.2; }
.relatore .ruolo{ font-size:13px; line-height:1.5; color:rgba(255,255,255,.6);
  margin-top:6px; }

.relatori.is-troncato .relatore--extra{ display:none; }
.relatori__apri{ display:flex; justify-content:center; margin-top:clamp(28px,3.5vw,40px); }
.relatori__apri .btn{ --fg:#fff; }
.relatori__apri .btn[hidden]{ display:none; }
.mono-piccolo{
  font-family:var(--mono); font-size:11px; letter-spacing:.1em;
  padding:3px 9px; border-radius:999px; background:var(--magenta); color:#fff;
}

/* ==========================================================================
   Sede
   ========================================================================== */
.sede{ display:grid; gap:clamp(28px,4vw,56px); align-items:center; }
@media (min-width:920px){ .sede{ grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr); } }
.sede__dati dl{ margin:clamp(24px,3vw,36px) 0 0; display:grid; gap:20px; }
.sede__dati dt{
  font-family:var(--mono); font-size:10px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--grigio-2); margin-bottom:6px;
}
.sede__dati dd{ margin:0; font-size:16px; line-height:1.55; }
.sede__dati dd a{ color:var(--magenta); text-decoration-thickness:1px;
  text-underline-offset:3px; }
.sede__foto{ margin:0; }
.sede__foto img{
  width:100%; height:auto; display:block;      /* il file e' gia' tagliato 16:10 */
  border-radius:var(--r-lg); box-shadow:0 40px 80px -56px rgba(16,27,77,.75);
}
.sede__foto figcaption{
  margin-top:16px; font-family:var(--serif); font-style:italic; font-size:17px;
  line-height:1.5; color:var(--grigio-2);
}
.sede__mappa{
  margin-top:clamp(28px,4vw,48px);
  border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--bordo);
  height:clamp(260px,32vw,380px); background:var(--nebbia);
}
.sede__mappa iframe{ width:100%; height:100%; border:0; display:block;
  filter:grayscale(.28) contrast(1.04); }

/* ==========================================================================
   Registrazione
   ========================================================================== */
.reg{ display:grid; gap:clamp(32px,4vw,64px); }
@media (min-width:980px){ .reg{ grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); } }

.reg__intro .titolo-sez{ max-width:12ch; }
.reg__note{ margin-top:26px; display:grid; gap:14px; }
.reg__note li{ display:flex; gap:12px; font-size:15px; line-height:1.55;
  color:rgba(255,255,255,.72); list-style:none; }
.reg__note li::before{ content:""; flex:0 0 auto; width:6px; height:6px;
  border-radius:50%; background:var(--magenta); margin-top:9px; }
.reg__note{ padding:0; }

.form{
  background:#fff; color:var(--inchiostro);
  border-radius:var(--r-lg); padding:clamp(26px,3.6vw,48px);
  box-shadow:0 40px 80px -50px rgba(0,0,0,.6);
}
.campo{ margin-bottom:22px; }
.campo:not(.consenso) > label, .campo > legend{
  display:block; font-family:var(--mono); font-size:10px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--grigio); margin-bottom:10px; padding:0;
}
.campo input[type=text],.campo input[type=email],.campo input[type=tel]{
  width:100%; padding:14px 16px; font:inherit; font-size:16px;
  border:1px solid var(--bordo); border-radius:12px; background:var(--freddo);
  color:var(--inchiostro); transition:border-color .25s, background .25s;
}
.campo input::placeholder{ color:var(--grigio-2); }
.campo input:focus{ border-color:var(--blu); background:#fff; outline:none; }
.campo input[aria-invalid="true"]{ border-color:var(--memi); background:#FFF5F7; }

fieldset.campo{ border:0; padding:0; margin:0 0 24px; }
.scelte{ display:grid; grid-template-columns:repeat(3,1fr); gap:8px; }
@media (max-width:520px){ .scelte{ grid-template-columns:1fr; } }
.scelta{ position:relative; }
.scelta input{ position:absolute; opacity:0; inset:0; cursor:pointer; }
.scelta span{
  display:block; text-align:center; padding:15px 10px; border-radius:12px;
  border:1px solid var(--bordo); background:var(--freddo);
  font-family:var(--mono); font-size:11px; letter-spacing:.12em;
  text-transform:uppercase; color:var(--grigio);
  transition:all .25s var(--ease); cursor:pointer;
}
.scelta input:hover + span{ border-color:var(--blu); color:var(--blu); }
.scelta input:checked + span{
  background:var(--blu); border-color:var(--blu); color:#fff;
}
.scelta input:focus-visible + span{ outline:2px solid var(--magenta); outline-offset:2px; }

.consenso{ display:flex; gap:12px; align-items:flex-start; margin:4px 0 24px; }
.consenso input{ margin-top:4px; accent-color:var(--magenta); width:17px; height:17px;
  flex:0 0 auto; }
.consenso label{ font-size:13.5px; line-height:1.55; color:var(--grigio); }
.consenso a{ color:var(--magenta); }

.form .btn{ width:100%; justify-content:center; padding:18px 26px; }
.form__errore{
  display:none; font-size:13.5px; color:var(--memi); margin-top:6px;
  font-family:var(--mono); letter-spacing:.02em;
}
.campo.ha-errore .form__errore{ display:block; }
.form__esito{ display:none; text-align:center; padding:clamp(20px,3vw,36px) 0; }
.form__esito .punto-grande{
  width:54px; height:54px; border-radius:50%; background:var(--magenta);
  display:grid; place-items:center; margin:0 auto 22px; color:#fff;
}
.form__esito h3{ font-size:26px; margin-bottom:12px; }
.form__esito p{ color:var(--grigio); font-size:15.5px; max-width:36ch; margin-inline:auto; }
.form.ha-esito .form__corpo{ display:none; }
.form.ha-esito .form__esito{ display:block; }
.form__nota{ font-size:12px; color:var(--grigio-2); text-align:center; margin-top:16px;
  line-height:1.5; }

/* ==========================================================================
   Partner (su chiaro) + footer
   ========================================================================== */
.partner__griglia{
  display:flex; flex-wrap:wrap; justify-content:center; align-items:center;
  gap:clamp(16px,2.4vw,34px);
  padding:clamp(34px,4.2vw,56px) clamp(16px,2.4vw,36px);
  background:#fff; border:1px solid var(--bordo); border-radius:var(--r-lg);
}
.partner__griglia div{ display:grid; place-items:center; padding:10px; }
.partner__griglia img{
  width:clamp(140px,15.5vw,200px); height:auto;
  opacity:.72; transition:opacity .3s var(--ease);
}
.partner__griglia div:hover img{ opacity:1; }

.footer{ background:var(--blu-800); color:#fff; padding-block:clamp(56px,7vw,88px) 32px; }
.footer__alto{ display:grid; gap:clamp(32px,4vw,56px); }
@media (min-width:860px){ .footer__alto{ grid-template-columns:minmax(0,1fr) auto; align-items:start; } }
.footer__logo svg{ width:78px; height:auto; color:#fff; }
.footer__logo p{ font-family:var(--mono); font-size:11px; letter-spacing:.18em;
  text-transform:uppercase; color:rgba(255,255,255,.55); margin-top:18px;
  line-height:1.8; max-width:42ch; }
.footer__contatti{ display:grid; gap:24px; }
@media (min-width:560px){ .footer__contatti{ grid-template-columns:1fr 1fr; gap:40px; } }
.footer__contatti .etichetta{
  font-family:var(--mono); font-size:10px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--nebbia); margin-bottom:10px;
}
.footer__contatti strong{ display:block; font-weight:600; font-size:16px; }
.footer__contatti span{ display:block; font-size:13.5px; color:rgba(255,255,255,.6);
  line-height:1.5; margin-top:4px; }
.footer__contatti a{ color:var(--nebbia); font-size:14px; text-decoration:none;
  border-bottom:1px solid rgba(169,201,232,.35); transition:color .25s; }
.footer__contatti a:hover{ color:#fff; }
.footer__basso{
  margin-top:clamp(40px,5vw,64px); padding-top:24px;
  border-top:1px solid var(--bordo-scuro);
  display:flex; flex-wrap:wrap; gap:14px 28px; justify-content:space-between;
  font-family:var(--mono); font-size:10px; letter-spacing:.14em;
  text-transform:uppercase; color:rgba(255,255,255,.45);
}
.footer__basso a{ color:inherit; text-decoration:none; }
.footer__basso a:hover{ color:#fff; }

/* ==========================================================================
   Comparse allo scroll
   ========================================================================== */
.rivela{ opacity:0; transform:translateY(22px);
  transition:opacity .8s var(--ease), transform .8s var(--ease); }
.rivela.visibile{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .rivela{ opacity:1; transform:none; transition:none; }
}

/* ==========================================================================
   Pagine di testo (privacy)
   ========================================================================== */
.testata-semplice{
  background:var(--blu-800); color:#fff; padding:clamp(88px,10vw,132px) 0 clamp(40px,5vw,64px);
}
.testata-semplice .titolo-sez{ max-width:20ch; }
.documento{ max-width:72ch; padding-block:clamp(48px,6vw,80px); }
.documento h2{ font-size:clamp(21px,2.3vw,28px); margin:clamp(36px,4vw,52px) 0 14px; }
.documento h2:first-child{ margin-top:0; }
.documento p, .documento li{ color:var(--grigio); font-size:16.5px; line-height:1.7; }
.documento p + p{ margin-top:14px; }
.documento ul{ margin:14px 0 0; padding-left:20px; display:grid; gap:8px; }
.documento a{ color:var(--magenta); text-underline-offset:3px; }
.documento .da-completare{
  background:#FFF3F6; border:1px dashed var(--magenta); border-radius:12px;
  padding:16px 18px; font-size:15px; color:var(--inchiostro);
}
.documento .aggiornato{
  font-family:var(--mono); font-size:11px; letter-spacing:.16em; text-transform:uppercase;
  color:var(--grigio-2); margin-top:clamp(40px,5vw,64px); padding-top:20px;
  border-top:1px solid var(--bordo);
}

/* riepilogo dell'evento accanto al modulo di registrazione */
.reg__scheda{
  margin-top:clamp(32px,4vw,48px); display:grid; gap:1px;
  background:var(--bordo-scuro); border:1px solid var(--bordo-scuro);
  border-radius:var(--r); overflow:hidden;
}
.reg__scheda > div{ background:var(--blu); padding:18px 22px; }
.reg__scheda .etichetta{
  font-family:var(--mono); font-size:10px; letter-spacing:.2em;
  text-transform:uppercase; color:var(--nebbia); margin-bottom:8px;
}
.reg__scheda p:not(.etichetta){ font-size:15px; line-height:1.55; color:#fff; }
@media (min-width:620px) and (max-width:979px){
  .reg__scheda{ grid-template-columns:repeat(3,1fr); }
}


/* ==========================================================================
   Sponsor commerciali — loghi a colori, su fondo chiaro
   ========================================================================== */
.sponsor{ margin-top:clamp(48px,6vw,76px); text-align:center; }
.sponsor__label{
  font-family:var(--mono); font-size:10px; letter-spacing:.24em;
  text-transform:uppercase; color:var(--grigio-2); margin-bottom:clamp(22px,3vw,32px);
}
.sponsor__righe{
  display:flex; flex-wrap:wrap; justify-content:center; align-items:center;
  gap:clamp(28px,6vw,84px);
}
.sponsor__logo{
  display:grid; place-items:center; padding:10px 6px;
  filter:saturate(.92); opacity:.9;
  transition:opacity .3s var(--ease), filter .3s var(--ease), transform .3s var(--ease);
}
.sponsor__logo:hover{ opacity:1; filter:none; transform:translateY(-2px); }
.sponsor__logo img{ width:var(--w,150px); height:auto; }


/* ==========================================================================
   Resa: le sezioni fuori schermo non vengono disegnate finche' non servono.
   Su un telefono e' la differenza fra uno scroll fluido e uno a scatti.
   ========================================================================== */
#programma, #relatori, #sede, #partner, .footer{
  content-visibility:auto;
  contain-intrinsic-size:auto 1200px;
}

/* pastiglia neutra, per indicazioni di servizio dentro un bottone */
.mono-piccolo--neutro{ background:rgba(16,27,77,.09); color:var(--grigio); }