/* provehome v8 — base grafica B10 (mint). Condivisa da c01..c05 */
:root{
  --a1:#14b8a6; --a2:#10b981; --a-deep:#0d9488; --a-soft:#e6faf6; --a-line:#bcefe5; --a-ink:#0f766e;
  --grad:linear-gradient(135deg,var(--a1),var(--a2));
  --bg:#ffffff; --surf:#f5f8f7; --ink:#12211e; --ink-2:#39504a; --muted:#6b8079;
  --line:#e4ecea; --line-2:#d6e2df;
  --ok:#10b981; --ok-soft:#e6f9f1; --ok-line:#b7ecd6; --ok-ink:#06875a;
  --paper:#fbf8f0; --paper-line:#e8e1cd; --stamp:#0d9488;
  --r:14px; --r-lg:20px; --r-xl:28px; --r-2xl:36px;
  --sh:0 10px 30px -14px rgba(18,33,30,.2);
  --sh-lg:0 32px 70px -30px rgba(18,33,30,.34);
  --s2:8px;--s3:12px;--s4:16px;--s5:20px;--s6:24px;--s8:32px;--s10:40px;--s12:48px;--s16:64px;--s20:80px;--s24:96px;
  --font:'Inter',-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}svg{display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
h1,h2,h3{letter-spacing:-.03em;line-height:1.07;font-weight:800}
h1{font-size:clamp(42px,5.4vw,72px);letter-spacing:-.04em}
h2{font-size:clamp(26px,3.2vw,40px)}
p{color:var(--ink-2)}

.btn{display:inline-flex;align-items:center;gap:9px;font:700 15px/1 var(--font);
  padding:15px 24px;border-radius:999px;border:0;cursor:pointer;transition:transform .15s,box-shadow .15s,filter .15s}
.btn:focus-visible{outline:2px solid var(--a1);outline-offset:3px}
.btn-pri{background:var(--grad);color:#fff;box-shadow:0 14px 28px -12px rgba(20,184,166,.7)}
.btn-pri:hover{transform:translateY(-2px);filter:brightness(1.05)}
.btn-ghost{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line-2)}
.btn-ghost:hover{box-shadow:inset 0 0 0 1.5px var(--a1);color:var(--a-ink)}
.btn-sm{padding:11px 18px;font-size:14px}

.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.8);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;letter-spacing:-.02em}
.brand .mk{width:28px;height:28px;border-radius:9px;background:var(--grad);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 16px -7px rgba(20,184,166,.7)}
.brand .mk svg{width:16px;height:16px;color:#fff}
.nav nav{display:flex;align-items:center;gap:24px}
.nav nav a.lk{font-size:14px;font-weight:500;color:var(--muted)}.nav nav a.lk:hover{color:var(--ink)}
.langs{display:flex;gap:2px;align-items:center}
.langs a{font-size:12px;font-weight:700;color:var(--muted);padding:5px 7px;border-radius:7px;letter-spacing:.02em;line-height:1}
.langs a:hover{color:var(--ink);background:var(--surf)}
.langs a.on{color:var(--a-ink);background:var(--a-soft)}

.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;background:var(--a-soft);color:var(--a-ink);padding:8px 15px;border-radius:999px}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--a1);box-shadow:0 0 0 4px rgba(20,184,166,.22)}
.kicker{font-size:13px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--muted);max-width:56ch}

/* mockup esito — B10 */
.demo{background:#fff;border:1px solid var(--line);border-radius:var(--r-2xl);box-shadow:var(--sh-lg);overflow:hidden}
.demo .bar{display:flex;align-items:center;gap:7px;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--surf)}
.demo .bar i{width:11px;height:11px;border-radius:50%;background:var(--line-2)}
.demo .bar .u{margin-left:12px;font-size:12.5px;color:var(--muted);font-weight:500}
.demo .bd{padding:var(--s8)}
.qa{display:flex;align-items:center;gap:12px;background:var(--surf);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:12px}
.qa svg{width:18px;height:18px;color:var(--muted);flex:none}
.qa b{font-size:14px;font-weight:700}.qa span{font-size:13px;color:var(--muted);display:block}
.result{margin-top:18px;background:var(--ok-soft);border:1px solid var(--ok-line);border-radius:16px;padding:20px;display:flex;align-items:center;gap:16px}
.result .rc{width:46px;height:46px;border-radius:50%;background:var(--ok);color:#fff;display:flex;align-items:center;justify-content:center;flex:none}
.result .rc svg{width:22px;height:22px}
.result b{display:block;color:var(--ok-ink);font-size:17px}.result span{font-size:13px;color:#3d6b4d}

/* come funziona — due tracce */
.tracks{display:grid;grid-template-columns:1fr 1fr;gap:var(--s5)}
.track{border-radius:var(--r-2xl);padding:var(--s8);border:1px solid var(--line);background:#fff}
.track.own{background:#12211e;color:#fff;border:0}
.track.ten{background:var(--a-soft);border-color:var(--a-line)}
.track .th{display:flex;align-items:center;gap:12px;margin-bottom:var(--s6)}
.track .th .ic{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex:none}
.track.own .th .ic{background:rgba(255,255,255,.12);color:#fff}
.track.ten .th .ic{background:var(--grad);color:#fff}
.track .th .ic svg{width:20px;height:20px}
.track .th h3{font-size:20px}.track.own .th h3{color:#fff}
.track .th p{font-size:13px;margin-top:2px}.track.own .th p{color:#9fb3ad}.track.ten .th p{color:var(--muted)}
.track ol{list-style:none;counter-reset:s;display:flex;flex-direction:column;gap:14px}
.track ol li{counter-increment:s;display:flex;gap:14px;align-items:flex-start}
.track ol li::before{content:counter(s);flex:none;width:26px;height:26px;border-radius:50%;font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center}
.track.own ol li::before{background:rgba(255,255,255,.14);color:#fff}
.track.ten ol li::before{background:#fff;color:var(--a-ink);box-shadow:inset 0 0 0 1.5px var(--a-line)}
.track ol li b{font-weight:700;font-size:15px}
.track ol li span{display:block;font-size:13.5px;margin-top:2px}
.track.own ol li span{color:#9fb3ad}.track.ten ol li span{color:var(--ink-2)}

/* prova lettera fisica */
.proof{background:#12211e;color:#fff}
.proof .wrap{padding:var(--s20) 24px;display:grid;grid-template-columns:.85fr 1.15fr;gap:var(--s12);align-items:center}
.proof h2{color:#fff;margin:14px 0 16px}
.proof p{color:#b6c7c2;font-size:16px}
.proof .li{display:flex;gap:12px;margin-top:18px;align-items:flex-start}
.proof .li svg{width:20px;height:20px;color:#34d399;flex:none;margin-top:2px}
.proof .li b{color:#fff;font-weight:700}.proof .li span{color:#9fb3ad;font-size:14px;display:block}
.letter{position:relative;background:var(--paper);color:#3b3522;border-radius:18px;padding:var(--s10) var(--s8);
  box-shadow:var(--sh-lg);border:1px solid var(--paper-line)}
.letter::before{content:"";position:absolute;left:0;right:0;top:0;height:8px;background:var(--grad);border-radius:18px 18px 0 0}
.letter .from{font-size:12px;color:#8a8264;letter-spacing:.04em}
.letter .to{margin:16px 0 22px;font-size:15px;line-height:1.7}
.letter .to b{color:#2c2716}
.letter .code{display:flex;align-items:center;justify-content:space-between;background:#fff;border:1px dashed #cbbf99;border-radius:12px;padding:14px 18px}
.letter .code .k{font:700 22px/1 ui-monospace,monospace;letter-spacing:.32em;color:#2c2716}
.letter .code .lab{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:#8a8264}
.letter .stamp{position:absolute;right:24px;top:22px;width:88px;height:88px;border:3px solid var(--stamp);border-radius:50%;
  display:flex;align-items:center;justify-content:center;text-align:center;transform:rotate(-12deg);
  color:var(--stamp);font-weight:900;font-size:13px;letter-spacing:.03em;opacity:.85;box-shadow:inset 0 0 0 2px var(--stamp)}

/* duo audience */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:var(--s5)}
.aud{border-radius:var(--r-2xl);padding:var(--s12) var(--s8);position:relative;overflow:hidden}
.aud.own{background:#12211e;color:#fff}
.aud.ten{background:var(--grad);color:#fff}
.aud h3{font-size:24px;margin-bottom:10px;color:#fff}
.aud p{margin-bottom:22px;font-size:15px}.aud.own p{color:#b6c7c2}.aud.ten p{color:rgba(255,255,255,.92)}
.aud a{font-weight:700;font-size:15px;color:#fff;display:inline-flex;gap:8px}

.cta .wrap{padding:var(--s20) 24px;text-align:center}
.cta h2{margin-bottom:var(--s5)}.cta .lead{margin:0 auto var(--s8)}

footer .wrap{padding:var(--s10) 24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:14px;color:var(--muted);border-top:1px solid var(--line)}
footer a:hover{color:var(--ink)}

@media(max-width:880px){
  .tracks{grid-template-columns:1fr}
  .duo{grid-template-columns:1fr}
  .proof .wrap{grid-template-columns:1fr;gap:var(--s8)}
  .nav nav a.lk{display:none}
  .nav nav{gap:14px}
}
@media(max-width:560px){
  .langs a{padding:4px 5px;font-size:11px}
  .nav nav{gap:8px}
}
/* Lang dropdown — bandiera lingua corrente, click apre lista con bandierine.
   Posizionata FUORI dal nav, sempre visibile (desktop + mobile). */
.lang-dd{position:relative;margin-left:auto}
.lang-dd-btn{display:inline-flex;align-items:center;gap:5px;font:700 13px var(--font);color:var(--ink);background:var(--surf);border:0;border-radius:9px;padding:7px 10px;cursor:pointer;min-height:36px}
.lang-dd-btn .caret{font-size:9px;color:var(--muted);margin-left:2px}
.lang-dd-btn .flag{font-size:15px;line-height:1}
.lang-dd .fi{width:22px;height:16px;border-radius:2px;display:inline-block;vertical-align:middle;box-shadow:0 0 0 1px rgba(0,0,0,.08)}
.lang-dd-menu .fi{width:24px;height:18px}
.lang-dd-menu{position:absolute;top:calc(100% + 6px);right:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.1);padding:6px;margin:0;list-style:none;min-width:175px;z-index:50}
.lang-dd-menu[hidden]{display:none}
.lang-dd-menu li{margin:0}
.lang-dd-menu a{display:flex;align-items:center;gap:0;font-size:14px;padding:8px 12px;border-radius:8px;color:var(--ink);font-weight:500}
.lang-dd-menu a:hover{background:var(--surf)}
.lang-dd-menu a.on{background:var(--a-soft);color:var(--a-ink);font-weight:700}
.lang-dd-menu .flag{font-size:16px}
.lang-dd .lang-code{font-size:13px;font-weight:700;color:#39504a;margin-left:6px;letter-spacing:.04em;vertical-align:middle}
.lang-dd-menu .lang-code{font-size:13px;color:#12211e;margin-left:8px}

/* Mobile-only: visibile solo nel pannello hamburger aperto. */
.mobile-only{display:none}

/* Hamburger — visibile solo su mobile (≤880). Pannello scende dall'alto. */
.burger{display:none;background:transparent;border:0;padding:0;width:42px;height:42px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;margin-left:auto}
.burger span{display:block;width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:transform .22s,opacity .22s;margin:0 auto}
.burger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

@media(max-width:880px){
  .burger{display:flex}
  .nav .wrap{padding:0 18px}
  .nav nav{position:fixed;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:20px;gap:14px;
    transform:translateY(-110%);opacity:0;visibility:hidden;
    transition:transform .25s ease,opacity .2s,visibility .25s;z-index:40}
  .nav nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav nav.open a.lk{display:block;font-size:16px;color:var(--ink);font-weight:600;padding:6px 0}
  .nav nav .langs{justify-content:flex-start;gap:6px;flex-wrap:wrap;padding:6px 0;border-top:1px solid var(--line)}
  .nav nav .btn-pri{width:100%;justify-content:center}
  .nav nav .mobile-only{display:inline-flex}
  /* Lang dropdown siede accanto al burger su mobile. */
  .burger{margin-left:6px}
}
@media(max-width:560px){
  .nav .wrap{height:58px}
  .nav nav{top:58px}
}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.invite-status{font-size:13px;margin-top:12px;padding:10px 12px;border-radius:9px;display:none;line-height:1.5}
.invite-status.ok{background:#e6faf6;border:1px solid #bcefe5;color:#0d9488;display:block}
.invite-status.err{background:#fdecec;border:1px solid #f4c7c3;color:#b3261e;display:block}