/* interfaccia chat ai.strafus.com */
html,body.chat-body{height:100%;overflow:hidden}
body.chat-body{background:#fff}
.app{display:flex;height:100dvh;width:100%}
.side{width:280px;flex:none;background:#0f2038;color:#dbe3ee;display:flex;flex-direction:column;padding:14px 12px;gap:10px;transition:transform .2s}
.side-top{display:flex;align-items:center;justify-content:space-between;padding:2px 6px 6px}
.side .brand{font-size:20px}
.icon-btn{background:transparent;border:0;color:inherit;font-size:22px;cursor:pointer;line-height:1;padding:6px;border-radius:6px}
.icon-btn:hover{background:rgba(255,255,255,.08)}
.side-close{display:none}
.btn-new{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:8px;padding:10px 12px;text-align:left;font:inherit;font-weight:600;cursor:pointer}
.btn-new:hover{background:rgba(255,255,255,.14)}
.chat-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:2px;padding-right:2px}
.chat-list .grp{font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;color:#8fa0b8;padding:12px 8px 4px}
.chat-item{display:flex;align-items:center;gap:6px;border-radius:8px;padding:8px 8px;color:#dbe3ee;text-decoration:none;font-size:14px;cursor:pointer}
.chat-item:hover{background:rgba(255,255,255,.08)}.chat-item.on{background:rgba(230,162,60,.18);color:#fff}
.chat-item .ttl{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-item .del{opacity:0;background:transparent;border:0;color:#c9d3e0;cursor:pointer;font-size:15px;padding:0 4px}
.chat-item:hover .del{opacity:.8}
.side-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:10px;display:flex;flex-direction:column;gap:6px;font-size:14px}
.side-bottom a{color:#dbe3ee;text-decoration:none;padding:4px 6px;border-radius:6px}.side-bottom a:hover{background:rgba(255,255,255,.08)}
.side-bottom .side-panel{color:var(--amber);font-weight:600}
.me{display:flex;align-items:center;gap:8px;padding:2px 6px}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--amber);color:var(--navy);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;flex:none}
.me-mail{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;color:#fff}
.side-login{text-align:center}.side-note{font-size:12.5px;color:#9fb0c6;margin:0;padding:0 6px}
.side-langs{display:flex;flex-wrap:wrap;gap:4px;padding:4px 6px}
.side-langs a{font-size:11.5px;padding:3px 7px;border:1px solid rgba(255,255,255,.18);border-radius:999px}.side-langs a.on{background:var(--amber);color:var(--navy);border-color:var(--amber)}
.side-legal{font-size:12px;color:#8fa0b8!important}
.side-backdrop{display:none}
.main{flex:1;display:flex;flex-direction:column;min-width:0;background:#fff}
.main-top{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--line);min-height:52px}
.main-top .icon-btn{display:none;color:var(--navy)}
.main-title{flex:1;font-weight:600;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.thread{flex:1;overflow-y:auto;padding:24px 16px 10px;scroll-behavior:smooth}
.thread-in{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:22px}
.welcome{max-width:760px;margin:6vh auto 0;text-align:center}
.welcome-mark{width:56px;height:56px;border-radius:14px;background:var(--navy);color:var(--amber);font-weight:800;font-size:28px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px}
.welcome h1{font-size:clamp(22px,3vw,30px);color:var(--navy);margin:0 0 10px;line-height:1.25}
.welcome p{color:#3b4550;margin:0 auto 22px;max-width:640px}
.suggest{display:grid;grid-template-columns:1fr 1fr;gap:10px;text-align:left}
@media(max-width:640px){.suggest{grid-template-columns:1fr}}
.sug{background:#f5f7fa;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit;font-size:14px;color:var(--ink);cursor:pointer;text-align:left}
.sug:hover{background:#eef2f7;border-color:#c9d1db}
.msg{display:flex;gap:12px;align-items:flex-start}
.msg .who{width:32px;height:32px;border-radius:50%;flex:none;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.msg.user .who{background:#e9eef5;color:var(--navy)}.msg.bot .who{background:var(--navy);color:var(--amber)}
.msg .bubble{min-width:0;flex:1}
.msg.user .bubble{background:#f2f4f7;border-radius:14px;padding:12px 16px;white-space:pre-wrap}
.msg.bot .bubble{padding:4px 0}
.msg.bot .bubble p{margin:0 0 10px}.msg.bot .bubble ul{margin:0 0 10px;padding-left:22px}.msg.bot .bubble li{margin:3px 0}
.msg .meta{font-size:12px;color:var(--mute);margin-top:6px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.typing{display:flex;align-items:center;gap:10px;color:var(--mute);font-size:14px}
.dots span{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--amber);margin-right:3px;animation:bl 1.2s infinite}
.dots span:nth-child(2){animation-delay:.2s}.dots span:nth-child(3){animation-delay:.4s}
@keyframes bl{0%,80%,100%{opacity:.25}40%{opacity:1}}
.srcs{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.srcs a{font-size:12.5px;background:#f2f4f7;border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:var(--navy);text-decoration:none;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.srcs a b{color:var(--amber-d);margin-right:4px}
.preview-wrap{position:relative}
.preview-wrap .fade{max-height:170px;overflow:hidden;-webkit-mask-image:linear-gradient(#000 40%,transparent);mask-image:linear-gradient(#000 40%,transparent)}
.gate-inline{margin-top:6px;background:var(--navy);color:#fff;border-radius:12px;padding:16px 18px}
.gate-inline h4{margin:0 0 4px;font-size:16px}.gate-inline p{margin:0 0 10px;color:#dbe3ee;font-size:14px}
.cta-inline{margin-top:12px;border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:#fbfcfd}
.cta-inline h4{margin:0 0 4px;font-size:15px;color:var(--navy)}.cta-inline .soon{font-size:13px;color:var(--mute);margin:0 0 10px}
.cta-inline .opts2{display:grid;grid-template-columns:1fr 1fr;gap:10px}@media(max-width:640px){.cta-inline .opts2{grid-template-columns:1fr}}
.cta-inline .o{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff}
.cta-inline .o .t{font-weight:600;font-size:14px}.cta-inline .o .p{color:var(--amber-d);font-weight:700;font-size:18px;margin:2px 0 8px}
.cta-inline form{display:flex;gap:6px}.cta-inline input{flex:1;padding:8px;border:1px solid #c9d1db;border-radius:7px;font:inherit;font-size:14px}
.composer{border-top:1px solid var(--line);background:#fff;padding:10px 16px 12px}
.composer-in{max-width:820px;margin:0 auto}
.opts{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.opts select{width:auto;font-size:12.5px;padding:5px 26px 5px 9px;border-radius:999px;border:1px solid var(--line);background:#f5f7fa;color:#3b4550}
.box{display:flex;align-items:flex-end;gap:8px;border:1px solid #c9d1db;border-radius:16px;padding:8px 8px 8px 14px;background:#fff;box-shadow:0 2px 12px rgba(20,35,60,.06)}
.box:focus-within{border-color:var(--navy);box-shadow:0 0 0 3px rgba(31,58,95,.12)}
.box textarea{flex:1;border:0;outline:0;resize:none;font:inherit;font-size:16px;line-height:1.45;max-height:180px;padding:6px 0;background:transparent}
.send{width:38px;height:38px;border-radius:50%;border:0;background:var(--navy);color:#fff;font-size:17px;cursor:pointer;flex:none}
.send:disabled{opacity:.4;cursor:default}.send:hover:not(:disabled){background:var(--navy-d)}
.composer-note{font-size:11.5px;color:var(--mute);text-align:center;margin-top:8px}
.err-inline{background:#fbe3e0;color:#8f2a1f;padding:8px 12px;border-radius:8px;font-size:14px}
@media(max-width:860px){
  .side{position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translateX(-100%);box-shadow:0 0 30px rgba(0,0,0,.3)}
  .side.open{transform:none}.side-close{display:inline-block}
  .side-backdrop.open{display:block;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:40}
  .main-top .icon-btn{display:inline-block}
  .thread{padding:16px 12px 8px}.composer{padding:8px 10px 10px}
}
.main-title-wrap{flex:1;min-width:0}
.chat-link{display:block;font-size:12px;color:var(--mute);text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-link:hover{text-decoration:underline}
.nudge{margin-top:10px;background:#fff8e8;border:1px solid #f3dfb3;border-radius:10px;padding:10px 12px;font-size:14px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:space-between}

/* --- rifinitura grafica 15/09 --- */
.thread-in{max-width:780px;gap:26px}
.msg.user{justify-content:flex-end}
.msg.user .who{order:2}
.msg.user .bubble{flex:0 1 auto;max-width:85%;background:#eef2f7;border-radius:18px 18px 4px 18px;padding:12px 16px;font-size:15.5px}
.msg.bot .bubble{font-size:15.5px;line-height:1.65}
.msg .who{box-shadow:0 1px 3px rgba(0,0,0,.12)}
.srcs a{display:inline-flex;align-items:center;gap:6px;padding:4px 10px 4px 6px;background:#fff;border-color:#d9e0e8}
.srcs a img{width:16px;height:16px;border-radius:3px;flex:none}
.srcs a:hover{background:#eef2f7;border-color:#b9c4d2}
.actions-row{display:flex;gap:6px;align-items:center;margin-top:8px;flex-wrap:wrap}
.act{border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px 10px;font:inherit;font-size:12.5px;color:#3b4550;cursor:pointer;display:inline-flex;align-items:center;gap:5px}
.act:hover{background:#f2f4f7}.act.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.act.thanks{border-color:transparent;background:transparent;color:var(--ok);cursor:default}
.fb-note{display:none;margin-top:8px;gap:6px}.fb-note.open{display:flex}
.fb-note input{flex:1;font:inherit;font-size:14px;padding:8px 10px;border:1px solid #c9d1db;border-radius:8px}
.welcome-mark{background:linear-gradient(135deg,#1f3a5f,#2c5282);box-shadow:0 8px 24px rgba(31,58,95,.25)}
.sug{display:flex;gap:10px;align-items:flex-start;line-height:1.4}
.sug::before{content:"↗";color:var(--amber-d);font-weight:700;flex:none}
.opts-toggle{display:none}
.box{border-radius:22px;padding:6px 6px 6px 16px}
.box textarea{min-height:26px;padding:8px 0}
.send{width:40px;height:40px}
@media(max-width:860px){
  .thread{padding:14px 12px 8px}.thread-in{gap:18px}
  .msg{gap:8px}.msg .who{width:26px;height:26px;font-size:12px}
  .msg.user .bubble{max-width:90%;font-size:15px;padding:10px 13px}
  .msg.bot .bubble{font-size:15px}
  .welcome{margin-top:2vh}.welcome h1{font-size:21px}.welcome p{font-size:14.5px;margin-bottom:14px}
  .suggest{gap:8px}.sug{padding:10px 12px;font-size:13.5px}
  .composer{padding:8px 10px calc(8px + env(safe-area-inset-bottom))}
  .composer-note{display:none}
  .opts{display:none;margin-bottom:8px}.opts.open{display:flex}
  .opts-toggle{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#f5f7fa;border-radius:999px;padding:5px 10px;font:inherit;font-size:12.5px;color:#3b4550;margin-bottom:6px;cursor:pointer}
  .opts-toggle.on{background:var(--navy);color:#fff;border-color:var(--navy)}
  .box{border-radius:20px;padding:4px 4px 4px 14px}
  .box textarea{font-size:16px;min-height:24px;max-height:120px;padding:9px 0}
  .send{width:38px;height:38px}
  .cta-inline{padding:12px}.cta-inline .o .p{font-size:16px}
  .main-top{padding:8px 12px;min-height:48px}
  .chat-link{display:none}
}
.research{margin-top:12px;border-radius:12px;padding:12px 14px;font-size:14.5px}
.research.on{background:#fff8e8;border:1px solid #f3dfb3}.research.done{background:#f2f7f4;border:1px solid #cfe5d8}.research.failed{background:#f5f7fa;border:1px solid var(--line);color:var(--mute)}
.research .research-t{font-weight:700;color:var(--ok);margin-bottom:6px}
.research .note{margin-top:6px;font-size:13px}
.mail-later{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap}.mail-later input{flex:1;min-width:180px;font:inherit;font-size:14px;padding:8px 10px;border:1px solid #c9d1db;border-radius:8px}
.slow{margin-top:10px;background:#fff8e8;border:1px solid #f3dfb3;border-radius:10px;padding:10px 12px;font-size:14px}
/* riferimenti [n] nel testo e evidenza della fonte (15/09/2026) */
a.cite{color:var(--navy);font-weight:600;text-decoration:none;font-size:.82em;padding:0 1px;cursor:pointer}
a.cite:hover{color:var(--amber-d);text-decoration:underline}
.srcs a.hit{border-color:var(--amber-d);box-shadow:0 0 0 2px rgba(230,162,60,.35)}
.research .srcs{margin-top:10px}