.bt-assistant{--bt-dock-bottom:22px;position:fixed;right:18px;bottom:var(--bt-dock-bottom);z-index:9990;display:flex;flex-direction:column;align-items:flex-end;gap:9px;font-family:Poppins,Arial,sans-serif;color:var(--text,#1f2433);box-sizing:border-box}
.bt-assistant[data-placement="left"]{right:auto;left:18px;align-items:flex-start}
.bt-assistant *{box-sizing:border-box}
.bt-assistant__hint{position:absolute;right:70px;bottom:6px;min-height:46px;width:max-content;max-width:min(270px,calc(100vw - 104px));padding:0 17px 0 13px;display:flex;align-items:center;gap:9px;border:1px solid rgba(var(--brand-rgb),.2);border-radius:16px;background:var(--surface,#fff);color:var(--text,#1f2433);font:600 12px/1.35 Poppins,Arial,sans-serif;white-space:nowrap;box-shadow:0 15px 40px rgba(28,26,45,.18);cursor:pointer;opacity:0;visibility:hidden;pointer-events:none;transform:translateX(12px) scale(.96);transform-origin:right center;transition:opacity .24s ease,visibility .24s ease,transform .28s cubic-bezier(.2,.8,.2,1),border-color .18s ease}
.bt-assistant__hint::after{content:"";position:absolute;right:-7px;top:50%;width:13px;height:13px;border-top:1px solid rgba(var(--brand-rgb),.2);border-right:1px solid rgba(var(--brand-rgb),.2);background:var(--surface,#fff);transform:translateY(-50%) rotate(45deg)}
.bt-assistant[data-placement="left"] .bt-assistant__hint{right:auto;left:70px;transform-origin:left center;transform:translateX(-12px) scale(.96)}.bt-assistant[data-placement="left"] .bt-assistant__hint::after{right:auto;left:-7px;border:0;border-bottom:1px solid rgba(var(--brand-rgb),.2);border-left:1px solid rgba(var(--brand-rgb),.2)}
.bt-assistant.has-hint .bt-assistant__hint{opacity:1;visibility:visible;pointer-events:auto;transform:none;animation:bt-assistant-hint-in .34s cubic-bezier(.2,.8,.2,1) both}.bt-assistant__hint:hover{border-color:var(--brand)}
.bt-assistant__hint-dot{position:relative;z-index:1;width:9px;height:9px;flex:0 0 9px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 0 rgba(var(--brand-rgb),.3);animation:bt-assistant-hint-pulse 2.2s ease-out infinite}.bt-assistant__hint>span:last-child{position:relative;z-index:1}
@keyframes bt-assistant-hint-in{0%{opacity:0;scale:.96}100%{opacity:1;scale:1}}@keyframes bt-assistant-hint-pulse{0%{box-shadow:0 0 0 0 rgba(var(--brand-rgb),.34)}70%,100%{box-shadow:0 0 0 8px rgba(var(--brand-rgb),0)}}
.bt-assistant__panel{position:absolute;right:0;bottom:74px;width:min(360px,calc(100vw - 28px));border:1px solid rgba(var(--brand-rgb),.18);border-radius:22px;background:var(--surface,#fff);box-shadow:0 22px 65px rgba(28,26,45,.22);overflow:hidden;opacity:0;visibility:hidden;transform:translateY(10px) scale(.98);transform-origin:bottom right;transition:opacity .2s ease,transform .2s ease,visibility .2s}
.bt-assistant[data-placement="left"] .bt-assistant__panel{right:auto;left:0;transform-origin:bottom left}
.bt-assistant.is-open .bt-assistant__panel{opacity:1;visibility:visible;transform:none}
.bt-assistant__head{display:flex;align-items:center;gap:11px;padding:16px;background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff}
.bt-assistant__headmark,.bt-assistant__mark{display:block;background:currentColor;-webkit-mask:url('/assets/brand/bartertap-mark-v2.svg?v=1') center/contain no-repeat;mask:url('/assets/brand/bartertap-mark-v2.svg?v=1') center/contain no-repeat}
.bt-assistant__headmark{width:34px;height:25px;flex:0 0 34px}
.bt-assistant__headcopy{min-width:0;flex:1}.bt-assistant__headcopy strong{display:block;font-size:14px;line-height:1.25}.bt-assistant__headcopy span{display:block;margin-top:2px;font-size:10px;opacity:.82}
.bt-assistant__close{width:34px;height:34px;border:0;border-radius:10px;background:rgba(255,255,255,.14);color:#fff;font-size:22px;line-height:1;cursor:pointer}
.bt-assistant__body{padding:17px}.bt-assistant__message{margin:0;padding:13px 14px;border-radius:14px 14px 14px 4px;background:var(--brand-tint);color:var(--text,#303445);font-size:12.5px;line-height:1.6}
.bt-assistant__actions{display:grid;gap:8px;margin-top:14px}.bt-assistant__action{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:43px;padding:10px 13px;border:1px solid var(--border,#e6e7ee);border-radius:12px;color:var(--text,#292d3a);text-decoration:none;font-size:12px;font-weight:700;background:var(--surface,#fff);transition:.18s}.bt-assistant__action:hover,.bt-assistant__action:focus-visible{border-color:var(--brand);color:var(--brand);outline:none;transform:translateY(-1px)}
.bt-assistant__action i{font-style:normal;color:var(--brand);font-size:17px}.bt-assistant__note{margin:12px 2px 0;color:#777b88;font-size:10px;line-height:1.5}
.bt-assistant__dock{display:flex;flex-direction:column;align-items:center;gap:8px}
.bt-assistant__toggle{position:relative;width:58px;height:58px;border:0;border-radius:19px;display:grid;place-items:center;background:linear-gradient(145deg,var(--brand),var(--brand-d));color:#fff;cursor:pointer;box-shadow:0 12px 30px rgba(var(--brand-rgb),.32);transition:transform .18s,box-shadow .18s}.bt-assistant__toggle:hover{transform:translateY(-2px);box-shadow:0 15px 34px rgba(var(--brand-rgb),.38)}.bt-assistant__toggle:focus-visible{outline:3px solid rgba(var(--brand-rgb),.28);outline-offset:3px}.bt-assistant__mark{width:38px;height:27px}
.bt-assistant__palette{position:relative}.bt-assistant__palette-toggle{width:42px;height:42px;border:1px solid rgba(var(--brand-rgb),.24);border-radius:14px;background:var(--surface,#fff);display:grid;place-items:center;cursor:pointer;box-shadow:0 8px 22px rgba(28,26,45,.12)}.bt-assistant__palette-dot{width:20px;height:20px;border:3px solid var(--surface,#fff);border-radius:50%;background:var(--brand);box-shadow:0 0 0 2px rgba(var(--brand-rgb),.32)}
.bt-assistant__palette-menu{position:absolute;right:0;bottom:50px;width:282px;padding:13px;border:1px solid var(--border,rgba(var(--brand-rgb),.18));border-radius:17px;background:var(--surface,#fff);box-shadow:0 18px 45px rgba(28,26,45,.2);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;opacity:0;visibility:hidden;transform:translateY(7px);transition:.18s}.bt-assistant[data-placement="left"] .bt-assistant__palette-menu{right:auto;left:0}.bt-assistant__palette.is-open .bt-assistant__palette-menu{opacity:1;visibility:visible;transform:none}
.bt-assistant__palette-title{grid-column:1/-1;color:var(--text-3,#6f7580);font-size:10px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;margin:2px 1px}.bt-assistant__theme-row{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-bottom:3px}
.bt-assistant__swatch{min-width:0;height:40px;padding:5px 7px;border:1px solid var(--border,#dfe1e8);border-radius:11px;background:var(--surface-2,#fff);color:var(--text,#252936);display:flex;align-items:center;gap:7px;cursor:pointer;font:600 10px/1.2 Poppins,Arial,sans-serif;text-align:left}.bt-assistant__swatch-color{width:24px;height:24px;flex:0 0 24px;border:2px solid var(--surface,#fff);border-radius:8px;background:var(--swatch);box-shadow:0 0 0 1px var(--border-2,#cfd3da)}.bt-assistant__swatch span:last-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bt-assistant__swatch.is-active{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);box-shadow:0 0 0 2px rgba(var(--brand-rgb),.14)}.bt-assistant__swatch:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
@media(max-width:640px){.bt-assistant{right:11px;--bt-dock-bottom:calc(78px + env(safe-area-inset-bottom));gap:7px}.bt-assistant[data-placement="left"]{right:auto;left:11px}.bt-assistant__panel{bottom:64px;width:min(342px,calc(100vw - 22px));max-height:min(520px,calc(100vh - 166px));overflow:auto;border-radius:19px}.bt-assistant__toggle{width:48px;height:48px;border-radius:15px}.bt-assistant__mark{width:31px;height:22px}.bt-assistant__hint{right:59px;bottom:2px;min-height:44px;max-width:calc(100vw - 82px);padding-inline:12px;font-size:11px;white-space:normal}.bt-assistant[data-placement="left"] .bt-assistant__hint{right:auto;left:59px}.bt-assistant__palette-toggle{width:38px;height:38px;border-radius:12px}.bt-assistant__palette-menu{bottom:45px}.bt-assistant__body{padding:15px}.bt-assistant__head{padding:14px}.bt-assistant__message{font-size:12px}}
@media(max-width:370px){.bt-assistant__panel{width:calc(100vw - 18px)}.bt-assistant__palette-menu{width:274px;padding:10px;gap:6px}}
@media(prefers-reduced-motion:reduce){.bt-assistant *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}