/* Tacchi RSVP — form responsivo e accessibile. Tema SCURO coerente con la
   home #tcy (continuità visiva). Brand: #DC0B15 / #161611.
   Contrasto testo AA su fondo scuro; tipografia UX (corpo ≥16px, target
   touch ≥21px, pill lingua ≥36px); layout desktop/pad/mobile. */
.tacchi-rsvp{
  --red:#DC0B15; --red-text:#FF4B52; --ink:#161611; --ink2:#0e0e0a;
  --paper:#F5F4F1; --steel:#a9a9a1; --muted:#c9c9c3;
  --line:rgba(245,244,241,.14); --line2:rgba(245,244,241,.20);
  --surface:rgba(245,244,241,.035); --field:rgba(0,0,0,.28); --ok:#4ade80;
  max-width:860px; margin:0 auto; color:var(--paper);
  font-family:"Helvetica Neue","Arial Nova",Arial,"Segoe UI",Roboto,system-ui,sans-serif;
  font-size:17px; line-height:1.6; -webkit-text-size-adjust:100%;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  background:radial-gradient(120% 90% at 50% 12%, #1c1c15 0%, #131310 46%, var(--ink2) 100%);
  border:1px solid var(--line); border-radius:18px;
  padding:clamp(20px,4vw,40px);
}
.tacchi-rsvp *{box-sizing:border-box;}
/* 1.1.3 — l'attributo [hidden] deve prevalere sui display: espliciti (es.
   .trsvp-field{display:flex}), altrimenti campi e blocchi condizionali
   (Specificare, dettagli cena) restano a video anche quando nascosti. */
.tacchi-rsvp [hidden]{display:none !important;}

/* Selettore lingua (centrato, con bandiera circolare) */
.trsvp-lang{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:14px;}
.trsvp-lang-btn{display:inline-flex;align-items:center;gap:8px;min-height:36px;
  border:1.5px solid var(--line);border-radius:999px;
  padding:5px 15px 5px 8px;font-size:14px;font-weight:600;letter-spacing:.3px;color:var(--paper);
  text-decoration:none;transition:.15s;background:rgba(245,244,241,.03);}
.trsvp-lang-btn:hover,.trsvp-lang-btn:focus-visible{border-color:rgba(245,244,241,.32);background:rgba(245,244,241,.08);}
.trsvp-lang-btn.is-active{background:var(--red);border-color:var(--red);color:#fff;cursor:default;}
.trsvp-lang-btn:focus-visible{outline:2px solid var(--red);outline-offset:2px;}
.trsvp-flag{width:1.5em;height:1.5em;border-radius:50%;overflow:hidden;flex:0 0 auto;line-height:0;
  box-shadow:0 0 0 1px rgba(245,244,241,.22), 0 2px 5px rgba(0,0,0,.4);}
.trsvp-flag svg{width:100%;height:100%;display:block;}

/* Intestazione */
.trsvp-hero{text-align:center;padding:8px 0 26px;}
/* Marchio = mandrino di precisione animato (coerente con la home #tcy) */
.trsvp-mark{width:78px;height:78px;margin:0 auto 10px;display:block;color:#cfcfc6;
  filter:drop-shadow(0 10px 26px rgba(0,0,0,.5));}
.trsvp-ring{fill:none;stroke-linecap:round;}
.trsvp-jaw{fill:none;stroke:#3a3a33;stroke-width:9;stroke-linecap:round;}
.trsvp-core{fill:#0f0f0b;stroke:#4a4a42;stroke-width:2.5;}
.trsvp-bore{fill:#050504;}
.trsvp-accent{fill:none;stroke:var(--red);stroke-width:4.5;stroke-linecap:round;}
.trsvp-spin{transform-origin:100px 100px;animation:trsvpSpin 14s linear infinite;}
@keyframes trsvpSpin{to{transform:rotate(360deg);}}
@media(prefers-reduced-motion:reduce){.trsvp-spin,.trsvp-spin-rev{animation:none;}.trsvp-seal{animation:none;stroke-dashoffset:0;}.trsvp-dot{animation:none;}}
.trsvp-kicker{color:var(--red-text);font-weight:700;font-size:15px;letter-spacing:.4px;margin:0 0 6px;text-transform:uppercase;}
.trsvp-title{font-size:clamp(20px,3.4vw,27px);line-height:1.25;font-weight:800;margin:0 0 10px;color:var(--paper);}
.trsvp-intro{font-size:16px;color:var(--muted);max-width:520px;margin:0 auto;}

/* Card / sezioni */
.trsvp-card{border:1px solid var(--line);border-radius:14px;background:var(--surface);
  padding:22px 22px 24px;margin:0 0 18px;}
.trsvp-card legend{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;
  padding:0;margin-bottom:14px;color:var(--paper);}
.trsvp-step{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;
  background:var(--red);color:#fff;border-radius:50%;font-size:15px;font-weight:700;}
.trsvp-req{font-size:13px;color:var(--steel);margin:-6px 0 14px;}
.trsvp-hint{font-size:14px;color:var(--steel);margin:0 0 14px;}

/* Campi */
.trsvp-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;}
.trsvp-field{display:flex;flex-direction:column;gap:6px;}
.trsvp-field span{font-size:14px;font-weight:600;color:var(--muted);}
.trsvp-field input{font-size:16px;padding:12px 14px;border:1.5px solid var(--line2);border-radius:9px;
  background:var(--field);transition:.15s;font-family:inherit;color:var(--paper);width:100%;}
.trsvp-field input::placeholder{color:var(--steel);opacity:1;}
.trsvp-field input:focus{outline:none;border-color:var(--red);background:rgba(0,0,0,.4);
  box-shadow:0 0 0 3px rgba(220,11,21,.28);}

/* Tour / scelte */
.trsvp-daybox{border-left:3px solid var(--red);padding:2px 0 2px 16px;margin:0 0 16px;}
.trsvp-day{font-weight:700;font-size:15.5px;margin:0 0 10px;color:var(--paper);}
.trsvp-check,.trsvp-radio{display:flex;align-items:flex-start;gap:11px;font-size:16px;
  padding:9px 0;cursor:pointer;line-height:1.45;color:var(--paper);}
.trsvp-check input,.trsvp-radio input{width:21px;height:21px;margin:1px 0 0;accent-color:var(--red);
  flex:0 0 auto;cursor:pointer;}
.trsvp-toggle{font-weight:700;font-size:17px;background:rgba(245,244,241,.05);border:1.5px solid var(--line);
  border-radius:10px;padding:14px 16px;}
.trsvp-conditional{margin-top:16px;padding-top:6px;border-top:1px dashed var(--line);}
.trsvp-diet-spec{margin:2px 0 10px 32px;}

/* GDPR */
.trsvp-gdpr{background:rgba(245,244,241,.05);}
.trsvp-gdpr a{color:#ff6b73;font-weight:600;text-decoration:underline;text-underline-offset:2px;}
.trsvp-health-note{margin:8px 0 0 32px;font-style:italic;color:var(--muted);}

/* Invio */
.trsvp-submit{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;
  background:var(--red);color:#fff;border:0;border-radius:11px;padding:17px 20px;
  font-size:18px;font-weight:800;letter-spacing:.3px;cursor:pointer;font-family:inherit;
  transition:.18s;box-shadow:0 10px 28px rgba(220,11,21,.34);}
.trsvp-submit:hover{background:#c00912;transform:translateY(-2px);box-shadow:0 14px 36px rgba(220,11,21,.46);}
.trsvp-submit:focus-visible{outline:2px solid #fff;outline-offset:3px;}
.trsvp-submit:disabled{opacity:.6;cursor:wait;transform:none;}

/* Stati */
.trsvp-alert{background:rgba(220,11,21,.14);border:1px solid rgba(220,11,21,.5);color:#ffb3b8;border-radius:9px;
  padding:12px 15px;margin:0 0 16px;font-size:15px;font-weight:600;}
/* Conferma "hero" — identità di marca a video (logo 100 YEARS + quadrante
   graduato con arco rosso che "chiude il giro") + saluto/congedo caldi. */
.trsvp-success{position:relative;overflow:hidden;text-align:center;
  padding:clamp(32px,5vw,56px) clamp(20px,4vw,44px);
  border:1px solid var(--line);border-radius:20px;
  background:radial-gradient(120% 80% at 50% 4%, rgba(28,28,21,.9) 0%, rgba(19,19,16,.55) 42%, transparent 100%),var(--surface);}
.trsvp-success::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background:repeating-radial-gradient(circle at 50% 26%, transparent 0 46px, var(--line) 46px 47px);
  -webkit-mask-image:radial-gradient(circle at 50% 26%, #000 0%, transparent 60%);
          mask-image:radial-gradient(circle at 50% 26%, #000 0%, transparent 60%);opacity:.6;}
.trsvp-success > *{position:relative;z-index:1;}
.trsvp-success-eyebrow{display:inline-flex;align-items:center;gap:.7em;margin:0 0 22px;
  color:var(--steel);font-weight:700;font-size:clamp(11px,1.5vw,13px);letter-spacing:.3em;
  text-transform:uppercase;font-variant-numeric:tabular-nums;}
.trsvp-dot{width:6px;height:6px;border-radius:50%;background:var(--red);
  box-shadow:0 0 0 0 rgba(220,11,21,.55);animation:trsvpPulse 2.6s ease-out infinite;}
@keyframes trsvpPulse{0%{box-shadow:0 0 0 0 rgba(220,11,21,.55);}70%{box-shadow:0 0 0 10px rgba(220,11,21,0);}100%{box-shadow:0 0 0 0 rgba(220,11,21,0);}}
.trsvp-logo{width:clamp(210px,42vw,360px);height:auto;display:block;margin:0 auto 6px;
  filter:drop-shadow(0 10px 34px rgba(0,0,0,.5));}
/* Quadrante graduato completo (come HOME) + arco che chiude. */
.trsvp-stage{width:clamp(132px,30vw,188px);aspect-ratio:1;margin:8px auto 6px;display:grid;place-items:center;}
.trsvp-gauge{width:100%;height:100%;color:#cfcfc6;filter:drop-shadow(0 14px 30px rgba(0,0,0,.55));}
.trsvp-spin-rev{transform-origin:100px 100px;animation:trsvpSpinRev 30s linear infinite;}
@keyframes trsvpSpinRev{to{transform:rotate(-360deg);}}
/* Arco rosso che "chiude il giro" = presenza confermata (C≈2π·90≈565). */
.trsvp-seal{fill:none;stroke:var(--red);stroke-width:5;stroke-linecap:round;
  stroke-dasharray:565;stroke-dashoffset:565;transform:rotate(-90deg);transform-origin:100px 100px;
  filter:drop-shadow(0 0 6px rgba(220,11,21,.5));
  animation:trsvpSeal 1.15s cubic-bezier(.22,.61,.36,1) .25s forwards;}
@keyframes trsvpSeal{to{stroke-dashoffset:0;}}
.trsvp-greeting{color:var(--paper);font-size:clamp(17px,2.6vw,21px);font-weight:600;margin:4px 0 4px;letter-spacing:.01em;}
.trsvp-success-title{color:var(--paper);font-size:clamp(24px,4.4vw,34px);line-height:1.14;
  font-weight:800;letter-spacing:-.01em;margin:2px 0 22px;}
/* Riepilogo LARGO e anti-impasto: valore in colonna flessibile, a capo pulito a sinistra. */
.trsvp-recap-block{max-width:600px;margin:0 auto 22px;text-align:left;
  border:1px solid var(--line);border-radius:12px;background:var(--field);padding:18px 22px;}
.trsvp-recap-title{color:var(--red-text);font-size:12.5px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;margin:0 0 14px;}
.trsvp-recap{display:grid;grid-template-columns:max-content 1fr;gap:12px 26px;margin:0;align-items:baseline;}
.trsvp-recap dt{color:var(--steel);font-size:15px;font-weight:600;margin:0;white-space:nowrap;}
.trsvp-recap dd{color:var(--paper);font-size:15px;font-weight:600;margin:0;text-align:left;line-height:1.5;}
.trsvp-signoff{color:var(--paper);font-size:clamp(16px,2.3vw,18px);font-weight:600;line-height:1.5;
  max-width:520px;margin:0 auto 10px;}
.trsvp-success-note{color:var(--muted);font-size:15px;line-height:1.55;max-width:480px;margin:0 auto 26px;}
.trsvp-success-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.trsvp-success-link{display:inline-flex;align-items:center;gap:.5em;min-height:44px;box-sizing:border-box;
  padding:.55em 1.1em;border:1px solid var(--line);border-radius:999px;background:rgba(245,244,241,.03);
  color:var(--steel);font-size:14px;font-weight:600;letter-spacing:.02em;text-decoration:none;
  transition:border-color .25s,background .25s,color .25s,transform .25s;}
.trsvp-arrow{color:var(--red);transition:transform .25s;}
.trsvp-success-link:hover{border-color:rgba(245,244,241,.28);color:var(--paper);background:rgba(245,244,241,.06);transform:translateY(-1px);}
.trsvp-success-link:hover .trsvp-arrow{transform:translateX(4px);}
.trsvp-success-link:focus-visible{outline:2px solid var(--red);outline-offset:3px;}
@media(max-width:560px){
  .trsvp-recap{grid-template-columns:1fr;gap:4px 0;}
  .trsvp-recap dt{margin-top:10px;}
  .trsvp-recap dt:first-child{margin-top:0;}
}
.tacchi-closed{text-align:center;padding:40px 20px;font-size:18px;font-weight:600;color:#ffb3b8;
  background:rgba(220,11,21,.14);border:1px solid rgba(220,11,21,.4);border-radius:14px;}

@media(max-width:600px){
  .trsvp-grid{grid-template-columns:1fr;}
  .trsvp-card{padding:18px 16px 20px;}
  .tacchi-rsvp{font-size:16px;padding:clamp(16px,5vw,24px);}
  .trsvp-title{font-size:21px;}
}