:root{
  --accent:#1f4fd8; --ink:#14213d; --muted:#6b7488; --line:#e3e7ef; --soft:#f5f7fb; --bg:#fff;
  --radius:28px; --blur:14px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
button{font:inherit;cursor:pointer}
[hidden]{display:none!important}

#app{height:100dvh;display:grid;grid-template-columns:1fr 0fr;grid-template-rows:auto 1fr;transition:grid-template-columns .6s cubic-bezier(.2,.7,.2,1);padding-bottom:env(safe-area-inset-bottom)}
#app.m-split,#app.m-final{grid-template-columns:minmax(340px,42fr) 58fr}
.top{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;padding:16px 24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;color:var(--ink);text-decoration:none;letter-spacing:.2px}
.brand img{height:28px}
.brand-dot{width:12px;height:12px;border-radius:50%;background:var(--accent)}
.ghost{background:none;border:1px solid var(--line);border-radius:999px;padding:8px 16px;color:var(--muted)}
.ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ---- colonna chat ---- */
#chatCol{display:flex;flex-direction:column;min-width:0;min-height:0;padding:0 24px 16px;align-items:center;overflow:hidden}
#welcome{margin:auto 0 28px;font-weight:600;font-size:clamp(28px,4.2vw,46px);letter-spacing:-.02em;text-align:center;transition:opacity .3s}
#messages{flex:1;width:100%;max-width:720px;overflow-y:auto;padding:8px 2px 16px;display:none;scroll-behavior:smooth}
.m-chat #messages,.m-split #messages,.m-final #messages{display:block}
.m-chat #welcome,.m-split #welcome,.m-final #welcome{display:none}
#bar{width:100%;max-width:720px;display:flex;align-items:flex-end;gap:8px;border:1px solid var(--line);border-radius:var(--radius);padding:10px 10px 10px 22px;background:#fff;box-shadow:0 6px 28px rgba(20,33,61,.08);transition:box-shadow .2s,border-color .2s}
#bar:focus-within{border-color:var(--accent);box-shadow:0 8px 32px rgba(31,79,216,.16)}
.m-start #bar{margin-bottom:auto}
#input{flex:1;border:0;outline:0;resize:none;font:inherit;line-height:1.5;max-height:140px;padding:6px 0;background:transparent;color:var(--ink)}
#sendBtn{width:42px;height:42px;border-radius:50%;border:0;background:var(--accent);color:#fff;display:grid;place-items:center;flex:none}
#micBtn{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--accent);display:grid;place-items:center;flex:none}
#micBtn[hidden]{display:none}
#micBtn.on{background:var(--accent);color:#fff;border-color:var(--accent);animation:rec 1.2s ease-in-out infinite}
@keyframes rec{0%,100%{box-shadow:0 0 0 0 color-mix(in srgb,var(--accent) 45%,transparent)}50%{box-shadow:0 0 0 10px transparent}}
#sendBtn:disabled{opacity:.4;cursor:default}
.legal{font-size:12px;color:var(--muted);margin:10px 0 0;text-align:center}
.msg{display:flex;margin:10px 0;animation:rise .3s ease both}
.msg .b{max-width:88%;padding:11px 16px;border-radius:20px;white-space:pre-wrap;overflow-wrap:anywhere}
.msg.bot .b{background:var(--soft);border-bottom-left-radius:6px}
.msg.me{justify-content:flex-end}
.msg.me .b{background:var(--accent);color:#fff;border-bottom-right-radius:6px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:2px 0 10px}
.chip{border:1px solid var(--accent);color:var(--accent);background:#fff;border-radius:999px;padding:7px 14px;font-size:14px}
.chip:hover{background:var(--accent);color:#fff}
.typing{display:inline-flex;gap:4px;padding:4px 0}
.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.1s infinite both}
.typing i:nth-child(2){animation-delay:.18s}.typing i:nth-child(3){animation-delay:.36s}

/* ---- colonna visuale ---- */
#visual{min-width:0;overflow:hidden;opacity:0;transition:opacity .6s .15s;border-left:1px solid var(--line);background:#fff}
.m-split #visual,.m-final #visual{opacity:1;overflow-y:auto}
.v-inner{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:12px 28px 24px;min-width:420px}
.boiler-wrap{position:relative;width:min(100%,640px)}
.boiler{filter:blur(var(--blur));opacity:calc(.45 + (1 - var(--blur-n,1))*.55);transform:scale(calc(.94 + (1 - var(--blur-n,1))*.06));transition:filter .9s ease,opacity .9s ease,transform .9s ease}
.boiler svg,.boiler img{width:100%;height:auto;display:block}
.boiler img{mix-blend-mode:multiply;max-height:46vh;object-fit:contain}
.floaters{position:absolute;inset:0;pointer-events:none}
.floater{position:absolute;transform:translate(-50%,-50%);background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border:1px solid var(--line);border-radius:16px;padding:10px 16px;box-shadow:0 10px 30px rgba(20,33,61,.12);animation:pop .5s cubic-bezier(.2,.9,.3,1.3) both;text-align:center;min-width:130px}
.floater small,.box small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.08em}
.floater b{font-size:18px}
.boxes{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;width:100%}
.box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:7px 14px;box-shadow:0 4px 14px rgba(20,33,61,.06);animation:pop .5s cubic-bezier(.2,.9,.3,1.3) both;text-align:center}
.box b{font-size:14px}
.product{text-align:center}
.p-name{font-size:22px;font-weight:650}
.p-desc{color:var(--muted);font-size:14px;max-width:520px;margin:0 auto 4px}
.p-warn{list-style:none;margin:6px auto 0;padding:8px 14px;max-width:520px;font-size:13px;color:#8a4b00;background:#fff4de;border:1px solid #f1d9a8;border-radius:12px;text-align:left}
.p-price{font-size:17px;color:var(--ink)}
.p-demo{display:inline-block;margin-top:4px;font-size:12px;color:#9a5b00;background:#fff4de;border:1px solid #f1d9a8;border-radius:999px;padding:2px 10px}
#cta{width:min(100%,460px);text-align:center}
.cta{background:var(--accent);color:#fff;border:0;border-radius:999px;padding:13px 30px;font-weight:600;font-size:16px;box-shadow:0 8px 24px rgba(31,79,216,.28)}
.cta:disabled{opacity:.6}
#leadForm{text-align:left;display:grid;gap:10px;animation:rise .35s ease both;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 10px 36px rgba(20,33,61,.10)}
#leadForm label{display:grid;gap:4px;font-size:13px;color:var(--muted)}
#leadForm input:not([type=checkbox]),#leadForm textarea{font:inherit;color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:9px 12px;width:100%}
#leadForm input:focus,#leadForm textarea:focus{outline:2px solid color-mix(in srgb,var(--accent) 35%,transparent);border-color:var(--accent)}
#leadForm .consent{display:flex;gap:10px;align-items:flex-start;color:var(--ink);font-size:13px}
#leadForm .consent input{margin-top:3px}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}
.notice{margin:0;font-size:13px;background:var(--soft);border-radius:12px;padding:10px 12px}
.error{margin:0;color:#b3261e;font-size:14px}
.sent{background:#eaf7ee;border:1px solid #bfe3c9;border-radius:16px;padding:14px;margin:0}
.row{display:flex;justify-content:flex-end;gap:10px}

#details{width:min(100%,560px);border:1px solid var(--line);border-radius:16px;padding:10px 16px;background:#fff;font-size:14px}
#details summary{cursor:pointer;font-weight:600;color:var(--accent)}
#details table{width:100%;border-collapse:collapse;margin-top:8px}
#details th{text-align:left;color:var(--muted);font-weight:500;padding:5px 12px 5px 0;vertical-align:top;white-space:nowrap}
#details td{padding:5px 0}
#details .note{color:var(--muted);margin:8px 0 0}#details ul.alt{margin:4px 0 0;padding-left:18px}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes pop{from{opacity:0;transform:translate(-50%,-50%) scale(.7)}to{opacity:1}}
.box{animation-name:popb}
@keyframes popb{from{opacity:0;transform:scale(.7)}to{opacity:1;transform:none}}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---- telefono / schermi stretti: la chat occupa tutto; la scheda scorre da destra con il pulsante flottante ---- */
.peek,.back{display:none}
.brand img{height:64px;width:auto}
@media (max-width:860px){
  #app,#app.m-split,#app.m-final{grid-template-columns:1fr;grid-template-rows:auto 1fr}
  #chatCol{padding:0 14px 10px}
  .top{padding:8px 14px}
  .brand img{height:52px}
  #visual{position:fixed;inset:0;z-index:30;min-width:0;opacity:1;border:0;overflow-y:auto;overflow-x:hidden;background:#fff;
    transform:translateX(100%);visibility:hidden;transition:transform .45s cubic-bezier(.2,.7,.2,1),visibility 0s .45s}
  .show-visual #visual{transform:none;visibility:visible;transition:transform .45s cubic-bezier(.2,.7,.2,1),visibility 0s}
  .back{display:inline-flex;gap:6px;align-items:center;position:sticky;top:0;z-index:2;width:100%;border:0;border-bottom:1px solid var(--line);
    background:rgba(255,255,255,.96);backdrop-filter:blur(6px);padding:14px 16px;font-weight:600;color:var(--accent);text-align:left}
  .v-inner{min-width:0;padding:10px 12px 28px;gap:10px;justify-content:flex-start}
  .floater{padding:6px 10px;min-width:96px}.floater b{font-size:14px}
  .boiler img{max-height:34vh}
  .peek{display:inline-flex;gap:6px;align-items:center;justify-content:center;position:static;width:100%;max-width:720px;margin:0 0 8px;
    border:0;border-radius:999px;padding:12px 18px;background:var(--ink);color:#fff;font-weight:600;font-size:16px;box-shadow:0 6px 18px rgba(20,33,61,.22);animation:rise .3s ease both}
  .peek.ready{background:var(--accent);animation:rise .3s ease both,nudge 1.8s ease-in-out .6s 3}
  .peek[hidden]{display:none}
  .show-visual .peek{display:none}

}
@keyframes nudge{0%,100%{transform:translateX(0)}50%{transform:translateX(-6px)}}