:root{
  --ground:#fff;--surface:#F5F5F5;--surface-2:#EDEDED;--rule:#E3E3E3;
  --ink:#000;--ink-2:#4A4A4A;--ink-3:#767676;
  --visa:#1434CB;--visa-tint:#E8EBFA;--gold:#FCC015;--green:#40996B;--green-text:#2C6849;--red:#C8102E;
  --host:#D97757;--host-ink:#fff;
  --font:"Open Sans","Noto Sans",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--ground);color:var(--ink);font-family:var(--font);font-size:15.5px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow:hidden}
button{font-family:inherit;cursor:pointer;font-size:inherit;color:inherit}
button:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid var(--visa);outline-offset:2px}
.app{display:grid;grid-template-columns:232px 1fr;height:100vh;height:100dvh}
/* host switcher (demo chrome, not part of any host) */
.hosts{margin-left:auto;flex:none;display:flex;align-items:center;gap:4px;background:#000;color:#fff;border-radius:999px;padding:4px 6px 4px 14px;font-size:12.5px;white-space:nowrap}
.hosts span{color:rgba(255,255,255,.65);margin-right:6px}
.hosts button{border:none;background:transparent;color:rgba(255,255,255,.75);border-radius:999px;padding:5px 11px;font-size:12.5px;font-weight:600}
.hosts button.on{background:#fff;color:#000}
/* rail, themed by host */
.rail{border-right:1px solid var(--rule);background:var(--surface);padding:18px 14px;display:flex;flex-direction:column;gap:6px;font-size:14px;min-height:0;overflow:auto}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 18px;font-weight:700;font-size:15px}
.hdot{width:22px;height:22px;border-radius:7px;background:var(--host);color:var(--host-ink);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none}
.newchat{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:10px;border:1px solid var(--rule);background:#fff;font-weight:600;text-align:left}
.rail h4{font-size:12px;color:var(--ink-3);font-weight:600;padding:18px 10px 6px}
.rail a{display:block;padding:7px 10px;border-radius:8px;color:var(--ink-2);text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail a:hover{background:var(--surface-2)}
.rail a.on{background:var(--surface-2);color:var(--ink)}
.rail a[data-chat="live"]{white-space:normal;overflow-wrap:anywhere;line-height:1.4} /* the 34 character title shows whole, its three dots included */
.tools{margin-top:auto;border-top:1px solid var(--rule);padding-top:12px}
.tools h4{padding:0 10px 6px}
.tool{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;color:var(--ink-2);font-size:13.5px}
.tool.on{background:#fff;border:1px solid var(--rule);color:var(--ink);font-weight:600}
.tool .dotg{width:7px;height:7px;border-radius:50%;background:var(--green);margin-left:auto}
.tool .ghost{width:20px;height:20px;border-radius:6px;border:1.5px dashed var(--ink-3);flex:none}
.me{display:flex;align-items:center;gap:10px;padding:12px 6px 0;color:var(--ink-2)}
.av{width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
/* passport tile: the only Visa-branded element in the shell */
.tile{width:22px;height:22px;border-radius:6px;background:var(--visa);position:relative;flex:none;display:inline-block}
.tile::after{content:"";position:absolute;right:4px;top:4px;width:6px;height:6px;background:var(--gold);transform:rotate(45deg)}
/* main */
.main{display:flex;flex-direction:column;min-width:0;min-height:0;height:100vh;height:100dvh;overflow:hidden;position:relative}
.top{height:56px;flex:none;display:flex;align-items:center;gap:12px;padding:0 24px;border-bottom:1px solid var(--rule)}
.top .title{font-weight:600;white-space:nowrap}
.top .sub{font-size:13px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
/* the passport button: the call to action that opens the drawer, filled Visa Blue in every host */
.top .pp{display:flex;align-items:center;gap:8px;border:none;border-radius:999px;padding:7px 16px 7px 8px;background:var(--visa);color:#fff;font-weight:600;font-size:14px;flex:none;position:relative}
.top .pp:hover{filter:brightness(.92)}
.top .pp .tile{border:1.5px solid #fff}
.top .pp .dot{display:none;position:absolute;top:-3px;right:-3px;width:12px;height:12px;border-radius:50%;background:var(--gold);border:2px solid #fff}
.top .pp.fresh .dot{display:block}
/* first load only: two 300 ms ease-out pulses within 3 s, then never again (none with reduced motion) */
.top .pp.cue{animation:pp-cue 3s ease-out 1}
@keyframes pp-cue{0%,20%{transform:scale(1)}25%{transform:scale(1.08)}30%,60%{transform:scale(1)}65%{transform:scale(1.08)}70%,100%{transform:scale(1)}}
.top .menu{display:none}
.scroll{flex:1;min-height:0;overflow:auto}
.col{max-width:720px;margin:0 auto;padding:36px 24px calc(var(--comp,150px) + 28px);display:flex;flex-direction:column;gap:28px}
.day{align-self:center;font-size:12.5px;color:var(--ink-3);font-weight:600}
.u{align-self:flex-end;max-width:78%;background:var(--surface);border-radius:18px;border-bottom-right-radius:6px;padding:10px 16px;overflow-wrap:anywhere}
.u.spoken{display:flex;align-items:center;gap:10px}
.u.spoken svg{flex:none;color:var(--ink-3)}
.a{display:grid;grid-template-columns:28px 1fr;gap:14px;align-items:start}
.a .hdot{width:28px;height:28px;border-radius:8px;margin-top:4px;font-size:13px}
.ab{min-width:0;overflow-wrap:anywhere}
.prose{margin:0 0 12px}.prose:last-child{margin-bottom:0}
.prose p{margin-bottom:10px}.prose p:last-child{margin-bottom:0}
.prose ul{margin:0 0 10px 20px}.prose ul:last-child{margin-bottom:0}.prose li{margin:2px 0}
.prose .err{color:var(--red)}
.wait{display:flex;gap:5px;padding:12px 0}
.wait i{width:6px;height:6px;border-radius:50%;background:var(--ink-3);animation:blink 1.2s ease-in-out infinite}
.wait i:nth-child(2){animation-delay:.2s}.wait i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
/* work log */
.work{border-left:2px solid var(--rule);padding:2px 0 2px 16px;margin:4px 0 14px;font-size:14px;color:var(--ink-2);display:flex;flex-direction:column;gap:7px}
.work .s{display:flex;align-items:center;gap:10px;opacity:0;transform:translateY(3px);transition:opacity .3s ease-out,transform .3s ease-out}
.work .s.on{opacity:1;transform:none}
.mk{width:14px;height:14px;border-radius:50%;flex:none;border:2px solid var(--ink-3);position:relative}
.mk.done{border-color:var(--green);background:var(--green)}
.mk.done::after{content:"";position:absolute;left:3px;top:1px;width:4px;height:7px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.mk.live{border-color:var(--host);border-top-color:transparent;animation:spin .8s linear infinite}
.mk.stop{border-color:var(--red);background:var(--red)}
@keyframes spin{to{transform:rotate(360deg)}}
.work .sub{color:var(--ink-3);font-size:13px;margin-left:24px;margin-top:-4px}
.work .s .tile{width:16px;height:16px;border-radius:4px;margin-left:-1px}
.work .s .tile::after{width:5px;height:5px;right:3px;top:3px}
/* options */
.opts{border:1px solid var(--rule);border-radius:12px;overflow:hidden;margin:6px 0 14px;font-size:14px}
.opt{display:grid;grid-template-columns:1fr auto;gap:8px 16px;padding:11px 14px;border-top:1px solid var(--rule);color:var(--ink-2);align-items:center}
.opt:first-child{border-top:none}
.opt.pick{background:var(--surface);color:var(--ink)}
.opt .ot{display:flex;flex-direction:column;min-width:0}
.opt b{font-weight:600;color:var(--ink)}
.opt .why{font-size:13px;color:var(--ink-3)}
.opts.stale .opt{opacity:.5}
.opts .stale-note{padding:8px 14px;font-size:13px;color:var(--ink-3);background:var(--surface)}
.acts{display:flex;gap:8px;margin-top:4px;flex-wrap:wrap}
.b{border:none;border-radius:10px;padding:9px 16px;font-weight:600;font-size:14px}
.b.p{background:var(--host);color:var(--host-ink)}
.b.q{background:var(--surface);color:var(--ink)}
.b.v{background:var(--visa);color:#fff}
.b.x{background:#fff;border:1px solid var(--red);color:var(--red)}
.b.sm{padding:7px 12px;font-size:13px;white-space:nowrap}
.opt .b.q{background:#fff;border:1px solid var(--rule)}
.b:disabled{opacity:.4;cursor:default}
.b.chosen:disabled{opacity:1}
/* payment card: Visa-owned component, identical in every host */
.pay{border:1.5px solid var(--visa);border-radius:12px;padding:0;margin:6px 0 14px;overflow:hidden}
.pay .ph{display:flex;align-items:center;flex-wrap:wrap;gap:4px 10px;padding:10px 16px;background:var(--visa-tint);font-size:13px;color:var(--visa);font-weight:600}
.pay .ph .tc{color:var(--ink-3);font-weight:400}
.pay .ph img{height:11px;margin-left:auto}
.pay .pb{display:grid;grid-template-columns:1fr 132px;gap:18px;padding:14px 16px 12px;align-items:start}
.pay h5{font-size:14px;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.pay h5 .st{margin-left:auto;font-size:12px;font-weight:600;color:var(--ink-3);white-space:nowrap}
.pay h5 .st.ok{color:var(--green-text)}.pay h5 .st.no{color:var(--red)}
.steps{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--ink-2)}
.steps .s{display:flex;align-items:center;gap:10px;opacity:0;transition:opacity .3s ease-out}
.steps .s.on{opacity:1}
.steps .mk.live{border-color:var(--visa);border-top-color:transparent}
.tok{width:132px;border:1.5px solid var(--rule);border-radius:10px;padding:10px 12px 12px;font-size:11px;color:var(--ink-3);transition:opacity .3s ease-out,border-color .3s ease-out;opacity:.35;line-height:1.35}
.tok.on{opacity:1;border-color:var(--ink)}
.tok .seal{width:34px;height:34px;border-radius:50%;border:3px solid var(--gold);display:flex;align-items:center;justify-content:center;font-size:8px;font-weight:700;color:var(--ink);text-align:center;line-height:1;margin-bottom:8px}
.tok b{display:block;color:var(--ink);font-size:13px;font-weight:700;letter-spacing:.06em}
.tok .amt{color:var(--ink);font-weight:600;font-size:12px;margin-top:3px}
.tok.dead{border-style:dashed;opacity:.5}.tok.dead .seal{border-color:var(--ink-3)}
.pay .foot{display:flex;align-items:center;gap:10px;border-top:1px solid var(--rule);padding:10px 16px;font-size:13px;color:var(--ink-3)}
.pay .foot button{margin-left:auto;display:none}
.pay.rev .foot button{display:inline-block}
/* composer */
.composer{position:absolute;left:0;right:0;bottom:0;padding:12px 24px 18px;background:var(--ground)}
.box{max-width:720px;margin:0 auto;border:1px solid var(--rule);border-radius:18px;background:#fff;padding:12px 12px 10px 16px}
.box .row1{display:flex;align-items:center;gap:8px}
.box input{flex:1;min-width:0;border:none;font:inherit;font-size:15.5px;outline:none;background:transparent;color:var(--ink)}
.box input:disabled{color:var(--ink-3)}
.box input::placeholder{color:var(--ink-3)}
.box .row2{display:flex;align-items:center;gap:8px;margin-top:8px}
.conn{display:flex;align-items:center;gap:7px;border:1px solid var(--rule);border-radius:999px;padding:4px 10px 4px 5px;font-size:12.5px;color:var(--ink-2);font-weight:600}
.conn .tile{width:18px;height:18px;border-radius:5px}.conn .tile::after{width:5px;height:5px;right:3px;top:3px}
.conn .dotg{width:7px;height:7px;border-radius:50%;background:var(--green)}
.plus{border:1px dashed var(--rule);background:#fff;border-radius:999px;padding:4px 10px;font-size:12.5px;color:var(--ink-3)}
.ic{width:36px;height:36px;border-radius:50%;border:none;background:transparent;color:var(--ink-2);display:flex;align-items:center;justify-content:center;flex:none}
.ic:hover{background:var(--surface)}
.ic.send{background:var(--host);color:var(--host-ink)}
.ic.v{background:var(--ink);color:#fff}
.ic:disabled{opacity:.35;cursor:default}
.hint{max-width:720px;margin:8px auto 0;display:flex;gap:6px;flex-wrap:wrap}
.hint button{border:1px solid var(--rule);background:#fff;border-radius:999px;padding:5px 12px;font-size:13px;color:var(--ink-2)}
.hint button:hover:not(:disabled){border-color:var(--ink);color:var(--ink)}
.hint button:disabled{opacity:.45;cursor:default}
.composer.done .hint{display:none}
/* voice overlay */
.voice{position:absolute;left:0;right:0;bottom:0;top:0;background:rgba(255,255,255,.96);display:none;flex-direction:column;align-items:center;justify-content:center;gap:22px;z-index:15;padding:0 24px}
.voice.on{display:flex}
.orb{width:120px;height:120px;border-radius:50%;background:var(--host);position:relative}
.orb::before,.orb::after{content:"";position:absolute;inset:-14px;border-radius:50%;border:2px solid var(--host);opacity:.35;animation:pulse 1.6s ease-out infinite}
.orb::after{inset:-30px;animation-delay:.5s;opacity:.18}
@keyframes pulse{0%{transform:scale(.85);opacity:.5}100%{transform:scale(1.15);opacity:0}}
.voice .tr{font-size:22px;max-width:620px;text-align:center;min-height:2.2em;color:var(--ink)}
.voice .tr .cur{color:var(--ink-3)}
.voice small{color:var(--ink-3);font-size:13.5px;text-align:center}
.voice .end{border:1px solid var(--rule);background:#fff;border-radius:999px;padding:8px 18px;font-weight:600;font-size:14px}
/* push */
.push{position:fixed;right:20px;top:68px;width:330px;background:#000;color:#fff;border-radius:14px;padding:12px 14px;display:grid;grid-template-columns:30px 1fr;gap:12px;transform:translateY(-16px);opacity:0;pointer-events:none;transition:transform .3s ease-out,opacity .3s ease-out;z-index:58;font-size:13.5px}
.push.on{transform:none;opacity:1;pointer-events:auto}
.push .tile{width:30px;height:30px;border-radius:8px}
.push b{display:block;font-weight:600}
.push .pa{display:flex;gap:14px;margin-top:6px}
.push .pa button{background:none;border:none;color:#9DB4FF;font-weight:600;font-size:13px;padding:0}
/* drawer */
.drawer{position:fixed;top:0;right:0;bottom:0;width:380px;max-width:100%;background:#fff;border-left:1px solid var(--rule);transform:translateX(100%);transition:transform .3s ease-out;z-index:60;padding:22px 24px;overflow:auto;font-size:14px;visibility:hidden}
.drawer.on{transform:none;visibility:visible}
.drawer h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px}
.drawer h3 img{height:13px}
.drawer h3 button{margin-left:auto;background:none;border:none;color:var(--ink-3);font-size:22px;line-height:1;padding:0 4px}
.drawer .lead{color:var(--ink-3);font-size:13px;margin-top:6px}
.drawer h4{font-size:14px;font-weight:600;margin:24px 0 10px}
.drawer .note{color:var(--ink-3);margin-top:24px}
.drawer .note.no{color:var(--red)}
.drawer .retry{margin-top:10px}
.ag{display:flex;align-items:center;gap:12px;padding:10px 0;border-top:1px solid var(--rule)}
.ag:last-child{border-bottom:1px solid var(--rule)}
.ag .hd{width:22px;height:22px;border-radius:7px;color:#fff;font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none}
.ag .nm{font-weight:600}.ag .pv{color:var(--ink-3);font-size:13px}
.ag .rec{color:var(--ink-3);font-size:12px}
.ag .sc{margin-left:auto;font-weight:700;white-space:nowrap}.ag .sc small{color:var(--ink-3);font-weight:400}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;color:var(--ink-2)}
.kv .v{color:var(--ink);font-weight:600;text-align:right}
.kv .v.no{color:var(--red)}
.hist{display:flex;flex-direction:column;gap:12px;color:var(--ink-2)}
.hr{display:grid;grid-template-columns:1fr auto;gap:2px 16px}
.hr .v{text-align:right;font-weight:600;color:var(--ink)}
.hr small{display:block;color:var(--ink-3);font-size:12.5px;font-weight:400}
.hx{display:flex;gap:14px;margin-top:2px}
.hx button{background:none;border:none;padding:0;color:var(--visa);font-weight:600;font-size:12.5px}
.hx button:hover{text-decoration:underline}
.hx button:disabled{color:var(--ink-3);text-decoration:none;cursor:default}
.revoke{margin-top:18px;width:100%;border:1px solid var(--red);color:var(--red);background:#fff;border-radius:10px;padding:10px;font-weight:600}
.revoke:disabled{opacity:.5;cursor:default}
.dim{position:fixed;inset:0;background:rgba(0,0,0,.25);display:none;z-index:55}.dim.on{display:block}
.sheet{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.4);z-index:70;padding:16px}
.sheet.on{display:flex}
.sheet>div{width:360px;max-width:100%;background:#fff;border-radius:16px;padding:22px}
.sheet h3{font-size:17px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.sheet p{color:var(--ink-2);margin-bottom:14px}
@media (max-width:1120px){.hosts{padding-left:6px}.hosts span{display:none}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media (max-width:860px){
  .app{grid-template-columns:1fr}
  .rail{display:none}
  .rail.open{display:flex;position:fixed;left:0;top:0;bottom:0;width:264px;max-width:85vw;z-index:60}
  .top .menu{display:flex;margin-left:-8px}
  .drawer{width:100%;border-left:none}
  .top{height:auto;flex-wrap:wrap;padding:8px 16px;gap:0 8px}
  .top::after{content:"";order:4;flex-basis:100%;height:0}
  .top .pp{margin-left:auto}
  .hosts{order:5;margin:6px auto 0;padding:3px 4px}
  .hosts button{padding:4px 9px;font-size:12px}
  .col{padding:28px 16px calc(var(--comp,190px) + 24px);gap:24px}
  .composer{padding:10px 16px 14px}
  .push{left:16px;right:16px;width:auto;top:12px}
}
@media (max-width:520px){
  .top .sub{display:none}
  .a{grid-template-columns:24px 1fr;gap:10px}
  .a .hdot{width:24px;height:24px;font-size:12px}
  .u{max-width:88%}
  .opt{grid-template-columns:1fr}
  .opt .b{justify-self:start}
  .pay .pb{grid-template-columns:1fr;gap:12px}
  .tok{width:auto;display:grid;grid-template-columns:auto 1fr;column-gap:12px;align-items:center}
  .tok .seal{grid-row:span 3;margin:0}
  .pay .foot{flex-wrap:wrap}
  .composer.done .ic{display:none}
  .composer.done input{font-size:14px}
}