/* =========================================================
   BCWGB STUDIO — design system
   Carta, griglia, mono + grotesk, rosso segnale, piramide
   ========================================================= */
:root{
  --paper:#f2f1ed;
  --paper-2:#e9e8e3;
  --ink:#151515;
  --ink-2:rgba(21,21,21,.68);
  --mute:#a9a8a3;
  --line:rgba(21,21,21,.14);
  --line-2:rgba(21,21,21,.3);
  --red:#e3120b;
  --red-soft:rgba(227,18,11,.14);
  --night:#0f0f0f;
  --grot:"Inter Tight", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
  --mono:"Geist Mono", ui-monospace, "PingFang SC", "Microsoft YaHei", monospace;
  --pad:clamp(16px,2vw,28px);
  --hdr:52px;
  --ease:cubic-bezier(.77,0,.18,1);
  --out:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--grot);font-weight:500;font-size:15px;line-height:1.38;letter-spacing:-.02em;-webkit-font-smoothing:antialiased;overflow-x:hidden;cursor:none}
body.loading{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:none}
input,textarea{font:inherit;color:inherit;cursor:none}
img{display:block;max-width:100%}
::selection{background:var(--red);color:#fff}

.grain{position:fixed;inset:0;pointer-events:none;z-index:9000;opacity:.32;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.5 0 0 0 0 0.5 0 0 0 0 0.5 0 0 0 .18 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.frame{position:fixed;inset:6px;border:1px solid var(--line);pointer-events:none;z-index:8000}

.mono{font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.02em;text-transform:uppercase}
.mute{color:var(--mute)}
.red{color:var(--red)}
.tw-caret::after{content:"";display:inline-block;width:.55em;height:1em;margin-left:2px;vertical-align:-.12em;background:var(--red);animation:blink .8s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ===== cursore ===== */
.cursor{position:fixed;left:0;top:0;pointer-events:none;z-index:9500}
.cursor .dot{position:absolute;width:0;height:0;margin:-7px 0 0 -6px;border-left:6px solid transparent;border-right:6px solid transparent;border-bottom:11px solid var(--red)}
.cursor .ring{position:absolute;width:36px;height:36px;margin:-18px 0 0 -18px;border:1px solid var(--red);opacity:.55;transition:transform .3s,opacity .3s}
.cursor.hover .ring{transform:scale(1.55) rotate(45deg);opacity:1}
.cursor .xy{position:absolute;left:16px;top:14px;white-space:nowrap;color:var(--red);font-size:9px;line-height:1.3}
.cross-x,.cross-y{position:fixed;pointer-events:none;z-index:9400;background:rgba(227,18,11,.16)}
.cross-x{left:0;right:0;height:1px;top:0}.cross-y{top:0;bottom:0;width:1px;left:0}
@media (hover:none){body{cursor:auto}.cursor,.cross-x,.cross-y{display:none}button,input,textarea{cursor:auto}}

/* ===== loader ===== */
.loader{position:fixed;inset:0;z-index:7000;pointer-events:none}
.loader .half{position:absolute;left:0;right:0;height:50%;background:var(--paper);transition:transform 1.2s var(--ease)}
.loader .top{top:0}.loader .bot{bottom:0}
.loader.open .top{transform:translateY(-100%)}.loader.open .bot{transform:translateY(100%)}
.loader .bar{position:absolute;left:0;top:50%;height:2px;background:var(--red);width:0;transition:width .2s linear}
.loader .pct{position:absolute;left:var(--pad);top:calc(50% - 22px);color:var(--red)}
.loader .lg{position:absolute;right:var(--pad);top:calc(50% - 30px);width:22px;height:22px;color:var(--red)}
.loader.open .bar,.loader.open .pct,.loader.open .lg{opacity:0;transition:opacity .3s}
.loader .bl{position:absolute;left:var(--pad);bottom:var(--pad);font-weight:700;font-size:clamp(18px,2.2vw,30px);line-height:.95;letter-spacing:-.03em;white-space:pre-line;min-height:4em}
.loader .info{position:absolute;right:calc(var(--pad) + 240px);bottom:var(--pad);width:330px}
.loader .info .hr{border-top:1px dashed var(--line-2);margin:6px 0 8px}
.loader .info dl{display:grid;grid-template-columns:80px 14px 1fr;row-gap:6px;font-size:9.5px}
.loader .boot{position:absolute;right:var(--pad);bottom:var(--pad);width:220px;font-size:9.5px;line-height:1.45}
.loader .boot li{list-style:none;opacity:.15;transition:opacity .2s}
.loader .boot li.on{opacity:1}
.loader.open .bl,.loader.open .info,.loader.open .boot{opacity:0;transition:opacity .4s}
@media (max-width:900px){.loader .info{display:none}.loader .boot{width:180px}}

/* ===== header ===== */
header{position:fixed;top:6px;left:6px;right:6px;height:var(--hdr);z-index:6000;display:flex;background:var(--paper);border-bottom:1px solid var(--line);transform:translateY(-110%);transition:transform .9s var(--ease)}
body.ready header{transform:none}
.logo{display:flex;align-items:center;gap:10px;padding:0 var(--pad);font-weight:800;font-size:17px;letter-spacing:-.04em;margin-right:auto}
.logo svg{width:26px;height:26px;overflow:visible}
.logo .ap{transition:transform .6s var(--out)}
.logo:hover .ap{transform:translateY(-3px)}
nav.main{display:flex}
nav.main>div{position:relative;width:clamp(110px,9.5vw,150px);border-left:1px solid var(--line)}
nav.main>div>a{display:block;height:100%;padding:10px 12px}
nav.main>div>a::after{content:"";position:absolute;right:5px;bottom:5px;border:3px solid transparent;border-right-color:var(--ink-2);border-bottom-color:var(--ink-2)}
nav.main>div.nodd>a::after{display:none}
nav.main>div.cur>a{background:var(--ink);color:var(--paper)}
nav.main .cta{color:var(--red)}
nav.main .cta:hover{background:var(--red);color:#fff}
.roll{display:inline-block;overflow:hidden;height:1.2em;line-height:1.2em;vertical-align:top}
.roll span{display:block;transition:transform .45s cubic-bezier(.65,0,.35,1)}
a:hover .roll span,button:hover .roll span{transform:translateY(-100%)}
.dd{position:absolute;top:100%;left:-1px;right:-1px;background:var(--paper);border:1px solid var(--line);border-top:0;clip-path:inset(0 0 100% 0);transition:clip-path .45s var(--ease)}
nav.main>div:hover .dd{clip-path:inset(0 0 0 0)}
.dd a{display:block;padding:10px 12px;border-top:1px solid var(--line)}
.dd a:hover{color:var(--red)}
.burger{display:none;width:var(--hdr);border-left:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column}
.burger i{display:block;width:18px;height:1.5px;background:var(--ink);margin:4px 0;transition:.3s}
body.menu .burger i:first-child{transform:translateY(5px) rotate(45deg)}
body.menu .burger i:last-child{transform:translateY(-5px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:calc(var(--hdr) + 6px) 6px 6px;background:var(--paper);z-index:5900;padding:var(--pad);display:flex;flex-direction:column;gap:2px;clip-path:inset(0 0 100% 0);transition:clip-path .6s var(--ease)}
body.menu .mobile-menu{clip-path:inset(0 0 0 0)}
.mobile-menu a{font-size:clamp(34px,9vw,60px);font-weight:700;letter-spacing:-.045em;line-height:1.05;border-bottom:1px solid var(--line);padding:10px 0}
.mobile-menu .mono{margin-top:auto}
@media (max-width:900px){nav.main{display:none}.burger{display:flex}}

.plus{position:absolute;width:11px;height:11px;color:var(--ink-2)}
.plus::before,.plus::after{content:"";position:absolute;background:currentColor}
.plus::before{left:5px;top:0;width:1px;height:11px}.plus::after{top:5px;left:0;height:1px;width:11px}

/* ===== elementi comuni ===== */
section{position:relative}
.label{display:inline-flex;gap:8px;align-items:center}
.label::before{content:"";width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-bottom:7px solid var(--red)}
.h2{font-size:clamp(30px,3.9vw,58px);font-weight:700;line-height:.95;letter-spacing:-.045em;white-space:pre-line}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .9s,transform .9s var(--out)}
.reveal.in{opacity:1;transform:none}
.btn{display:inline-flex;align-items:center;border:1px solid var(--line-2);height:36px;background:var(--paper)}
.btn .t{padding:0 14px}
.btn .ar{width:36px;height:100%;border-left:1px solid var(--line-2);display:grid;place-items:center;transition:.3s}
.btn:hover{border-color:var(--ink)}
.btn:hover .ar{background:var(--red);color:#fff;border-color:var(--red)}
.btn.solid{background:var(--red);color:#fff;border-color:var(--red)}
.btn.solid .ar{border-color:rgba(255,255,255,.35)}
.btn.solid:hover .ar{background:#fff;color:var(--red)}
.btn.dark{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ===== CTA finale + footer ===== */
.cta-band{display:grid;grid-template-columns:1fr auto;gap:var(--pad);align-items:end;padding:calc(var(--pad)*2.4) var(--pad);border-bottom:1px solid var(--line);background:var(--ink);color:var(--paper);overflow:hidden;position:relative}
.cta-band .h2{font-size:clamp(36px,5.2vw,84px)}
.cta-band p{color:rgba(242,241,237,.6);max-width:440px;margin-top:16px}
.cta-band .btn{background:transparent;border-color:rgba(242,241,237,.35)}
.cta-band .btn .ar{border-color:rgba(242,241,237,.35)}
.cta-band svg.bgp{position:absolute;right:-6%;top:-30%;width:46%;opacity:.12;pointer-events:none}
@media (max-width:800px){.cta-band{grid-template-columns:1fr}}
footer{padding:var(--pad);padding-top:calc(var(--pad)*2)}
.ft-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:var(--pad);padding-bottom:40px;border-bottom:1px solid var(--line)}
.ft-grid h5{margin-bottom:12px;color:var(--mute)}
.ft-grid a{display:block;padding:3px 0;font-size:14px}
.ft-grid a:hover{color:var(--red)}
.ft-big{font-size:clamp(60px,15.5vw,270px);font-weight:800;letter-spacing:-.065em;line-height:.8;padding:40px 0 10px;white-space:nowrap;overflow:hidden;display:flex;align-items:flex-end}
.ft-big span{display:inline-block;transform:translateY(100%);transition:transform 1s var(--out)}
.ft-big.in span{transform:none}
.ft-big svg{width:.62em;height:.62em;margin-left:.05em;margin-bottom:.04em}
.ft-bot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:12px;border-top:1px solid var(--line)}
@media (max-width:900px){.ft-grid{grid-template-columns:1fr 1fr}}

/* ===== cookie ===== */
.cookie{position:fixed;left:12px;bottom:12px;z-index:6500;display:flex;align-items:center;gap:14px;background:var(--paper);border:1px solid var(--line-2);padding:6px 6px 6px 12px;font-size:12px;transform:translateY(160%);transition:transform .7s var(--ease)}
.cookie.on{transform:none}
.cookie button{font-family:var(--mono);font-size:10px;padding:7px 14px;border:1px solid var(--line-2)}
.cookie button.ok{background:var(--red);color:#fff;border-color:var(--red)}
@media (max-width:600px){.cookie{right:84px}.cookie span{display:none}}

/* ===== assistente IA: chat (inline + widget) ===== */
.chat{display:flex;flex-direction:column;background:var(--night);color:#ecebe6;border:1px solid var(--ink);min-height:0}
.chat .tb{display:flex;justify-content:space-between;align-items:center;padding:9px 12px;border-bottom:1px solid #2c2c2b;font-size:10px;gap:10px}
.chat .tb .st{display:flex;align-items:center;gap:6px;color:#7dff8a}
.chat .tb .st::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor;animation:blink 1.6s steps(1) infinite}
.chat .log{flex:1;padding:14px 12px;overflow:auto;display:flex;flex-direction:column;gap:12px;font-size:14px;line-height:1.45;scroll-behavior:smooth}
.chat .msg{max-width:88%;white-space:pre-line}
.chat .msg .who{display:block;font-family:var(--mono);font-size:9px;letter-spacing:.04em;text-transform:uppercase;margin-bottom:4px;color:#8b8a86}
.chat .msg.ai{align-self:flex-start}
.chat .msg.ai .who{color:var(--red)}
.chat .msg.me{align-self:flex-end;background:#1f1f1e;border:1px solid #2f2f2e;padding:8px 10px}
.chat .msg a{color:#fff;text-decoration:underline;text-decoration-color:var(--red);text-underline-offset:3px}
.chat .think{display:inline-flex;gap:4px}
.chat .think i{width:6px;height:6px;background:var(--red);animation:bounce 1s infinite}
.chat .think i:nth-child(2){animation-delay:.15s}.chat .think i:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,100%{transform:translateY(0);opacity:.4}50%{transform:translateY(-5px);opacity:1}}
.chat .sugg{display:flex;flex-wrap:wrap;gap:6px;padding:0 12px 10px}
.chat .sugg button{font-family:var(--mono);font-size:10px;text-transform:uppercase;border:1px solid #3a3a38;padding:6px 9px;color:#cfcec9;transition:.25s}
.chat .sugg button:hover{border-color:var(--red);color:#fff;background:rgba(227,18,11,.15)}
.chat form{display:flex;border-top:1px solid #2c2c2b}
.chat input{flex:1;background:none;border:0;outline:0;padding:13px 12px;font-family:var(--mono);font-size:12px;color:#fff;min-width:0}
.chat input::placeholder{color:#6d6c68}
.chat form button{background:var(--red);color:#fff;padding:0 16px;font-family:var(--mono);font-size:10px;letter-spacing:.04em}
.chat form button:disabled{opacity:.5}

.aiw-btn{position:fixed;right:14px;bottom:14px;z-index:6600;height:52px;display:flex;align-items:center;gap:10px;padding:0 16px 0 12px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);transform:translateY(160%);transition:transform .7s var(--ease),background .3s}
body.ready .aiw-btn{transform:none;transition-delay:1.4s}
.aiw-btn:hover{background:var(--red);border-color:var(--red)}
.aiw-btn svg{width:22px;height:22px}
.aiw-btn .pulse{position:absolute;right:-4px;top:-4px;width:10px;height:10px;background:var(--red);border:2px solid var(--paper)}
body.aiw-open .aiw-btn .pulse{display:none}
.aiw{position:fixed;right:14px;bottom:76px;z-index:6600;width:min(390px,calc(100vw - 28px));height:min(560px,calc(100vh - 150px));box-shadow:0 30px 60px -20px rgba(0,0,0,.45);clip-path:inset(100% 0 0 0);transition:clip-path .55s var(--ease);pointer-events:none}
body.aiw-open .aiw{clip-path:inset(0 0 0 0);pointer-events:auto}
.aiw .chat{height:100%}
.aiw .x{font-family:var(--mono);font-size:10px;color:#8b8a86}
.aiw .x:hover{color:#fff}

/* transizione pagine + barra lettura */
.pt{position:fixed;inset:0;z-index:9800;background:var(--red);color:#fff;display:grid;place-items:center;pointer-events:none;clip-path:inset(100% 0 0 0);transition:clip-path .6s var(--ease)}
.pt-in-l{display:flex;flex-direction:column;align-items:center;gap:14px}
.pt-in-l svg{width:70px;height:70px}
.pt-in-l svg .ap{fill:#fff}
html.pt-out .pt{clip-path:inset(0 0 0 0)}
html.pt-in .pt{clip-path:inset(0 0 0 0);transition:none}
html:not(.pt-in):not(.pt-out) .pt{clip-path:inset(0 0 100% 0)}
.sprog{position:fixed;left:6px;right:6px;top:calc(var(--hdr) + 6px);height:2px;background:var(--red);transform:scaleX(0);transform-origin:left;z-index:6001;pointer-events:none}
.btn,.aiw-btn,.look-ar{transition:translate .35s var(--out),background .3s,border-color .3s,transform .7s var(--out),color .5s}

/* selettore lingua */
header .lang{display:flex;align-items:stretch;border-left:1px solid var(--line);flex:none}
header .lang button{white-space:nowrap}
.logo{white-space:nowrap}
header .lang button{padding:0 11px;color:var(--ink-2);transition:color .25s,background .25s}
header .lang button:hover{color:var(--ink)}
header .lang button.on{color:var(--red)}
header .lang button+button{border-left:1px solid var(--line)}
.mobile-menu .lang{display:flex;gap:6px;margin-top:14px}
.mobile-menu .lang button{border:1px solid var(--line-2);padding:10px 14px;font-size:12px}
.mobile-menu .lang button.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
@media (max-width:900px){header .lang button{padding:0 9px}}
@media (max-width:420px){header .lang{display:none}}

/* cinese: niente tracking negativo, interlinea più ariosa */
html[lang^="zh"] body,html[lang^="zh"] h1,html[lang^="zh"] h2,html[lang^="zh"] h3,html[lang^="zh"] h4,html[lang^="zh"] .h2,html[lang^="zh"] blockquote,html[lang^="zh"] .look-t,html[lang^="zh"] .manifesto p,html[lang^="zh"] .statement .big{letter-spacing:0}
html[lang^="zh"] .h2,html[lang^="zh"] h1,html[lang^="zh"] .statement .big,html[lang^="zh"] .look-t{line-height:1.12}
html[lang^="zh"] .manifesto p{line-height:1.3}

@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}