.mbc{position:fixed;inset-inline-end:20px;inset-block-end:88px;z-index:99999;font:14px/1.7 Tahoma,Arial,sans-serif;color:#1f2937}
.mbc [hidden]{display:none!important}
.mbc button,.mbc input{font:inherit;box-sizing:border-box}

/* دکمه شناور */
.mbc-launch{position:relative;display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,#e6282b,#ff6a3d);color:#fff;border:0;border-radius:28px;padding:11px 18px;cursor:pointer;box-shadow:0 8px 22px rgba(230,40,43,.35);transition:transform .25s,box-shadow .25s;animation:mbc-in .5s .6s both}
.mbc-launch:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(230,40,43,.45)}
.mbc-launch::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:0 0 0 0 rgba(230,40,43,.5);animation:mbc-ring 3s 2s ease-out infinite;pointer-events:none}
.mbc-launch svg{width:20px;height:20px;transform-origin:50% 80%;animation:mbc-wiggle 9s 3s ease-in-out infinite}

/* پنجره */
.mbc-panel{width:340px;max-width:calc(100vw - 24px);height:460px;max-height:75vh;background:#fff;border-radius:18px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 18px 50px rgba(0,0,0,.22);transform-origin:bottom left}
.mbc-panel:not([hidden]){animation:mbc-pop .35s cubic-bezier(.2,.9,.3,1.2)}
.mbc-head{background:linear-gradient(135deg,#e6282b,#ff6a3d);color:#fff;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;font-weight:bold}
.mbc-head span::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:#4ade80;margin-inline-end:8px;animation:mbc-blink 2s infinite}
.mbc-x{background:rgba(255,255,255,.15);border:0;color:#fff;width:28px;height:28px;border-radius:50%;font-size:20px;line-height:1;cursor:pointer;transition:transform .25s,background .25s}
.mbc-x:hover{background:rgba(255,255,255,.3);transform:rotate(90deg)}

/* گفتگو */
.mbc-chat{display:flex;flex-direction:column;flex:1;min-height:0}
.mbc-msgs{flex:1;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px;background:linear-gradient(#fff5f3,#f9fafb);scroll-behavior:smooth}
.mbc-m{max-width:85%;padding:8px 12px;border-radius:14px;white-space:pre-wrap;word-break:break-word;animation:mbc-msg .3s ease both}
.mbc-m.visitor{align-self:flex-start;background:linear-gradient(135deg,#e6282b,#ff5a3d);color:#fff;border-end-start-radius:4px;box-shadow:0 3px 10px rgba(230,40,43,.25)}
.mbc-m.bot,.mbc-m.admin{align-self:flex-end;background:#fff;border:1px solid #eceef1;border-end-end-radius:4px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.mbc-m.admin{background:#fff1f0;border-color:#ffd2cc}
.mbc-m.typing>span:first-child{display:none}
.mbc-dots{display:inline-flex;gap:4px;padding:4px 2px}
.mbc-dots i{width:7px;height:7px;border-radius:50%;background:#9ca3af;animation:mbc-dot 1s infinite ease-in-out}
.mbc-dots i:nth-child(2){animation-delay:.15s}
.mbc-dots i:nth-child(3){animation-delay:.3s}

/* دکمه‌های انتخاب */
.mbc-opts{padding:10px;display:flex;flex-direction:column;gap:6px;border-top:1px solid #f1f1f1;max-height:45%;overflow:auto;background:#fff}
.mbc-opts button{background:#fff;border:1px solid #e6282b;color:#e6282b;border-radius:10px;padding:7px 10px;cursor:pointer;text-align:right;transition:transform .2s,background .2s,color .2s,box-shadow .2s;animation:mbc-msg .35s both}
.mbc-opts button:hover{background:#e6282b;color:#fff;transform:translateX(-4px);box-shadow:0 4px 12px rgba(230,40,43,.25)}
.mbc-opts button:nth-child(2){animation-delay:.06s}
.mbc-opts button:nth-child(3){animation-delay:.12s}
.mbc-opts button:nth-child(4){animation-delay:.18s}
.mbc-opts button:nth-child(5){animation-delay:.24s}
.mbc-opts button:nth-child(n+6){animation-delay:.3s}
.mbc-opts .mbc-human{background:linear-gradient(135deg,#e6282b,#ff6a3d);color:#fff;border-color:transparent}

/* ارسال */
.mbc-send{display:flex;gap:6px;padding:10px;border-top:1px solid #f1f1f1;background:#fff;animation:mbc-msg .3s both}
.mbc-send input{flex:1;padding:9px 12px;border:1px solid #d1d5db;border-radius:10px;outline:0;transition:border-color .2s,box-shadow .2s}
.mbc-send input:focus{border-color:#e6282b;box-shadow:0 0 0 3px rgba(230,40,43,.15)}
.mbc-send button{background:linear-gradient(135deg,#e6282b,#ff6a3d);color:#fff;border:0;border-radius:10px;padding:0 16px;cursor:pointer;transition:transform .2s,opacity .2s}
.mbc-send button:hover{transform:scale(1.05)}
.mbc-send button:disabled{opacity:.6}
.mbc-closed{padding:14px;text-align:center;border-top:1px solid #f1f1f1;background:#fff}
.mbc-go{background:linear-gradient(135deg,#e6282b,#ff6a3d);color:#fff;border:0;border-radius:10px;padding:9px 16px;cursor:pointer}

/* نقل‌قول (ریپلای) */
.mbc-quote{font-size:12px;opacity:.85;border-inline-start:3px solid currentColor;padding:2px 8px;margin-bottom:5px;background:rgba(0,0,0,.07);border-radius:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

@keyframes mbc-in{from{opacity:0;transform:translateY(16px) scale(.9)}to{opacity:1;transform:none}}
@keyframes mbc-pop{from{opacity:0;transform:translateY(20px) scale(.85)}to{opacity:1;transform:none}}
@keyframes mbc-msg{from{opacity:0;transform:translateY(8px) scale(.96)}to{opacity:1;transform:none}}
@keyframes mbc-ring{0%{box-shadow:0 0 0 0 rgba(230,40,43,.5)}70%,100%{box-shadow:0 0 0 16px rgba(230,40,43,0)}}
@keyframes mbc-wiggle{0%,92%,100%{transform:rotate(0)}94%{transform:rotate(-14deg)}96%{transform:rotate(12deg)}98%{transform:rotate(-8deg)}}
@keyframes mbc-blink{50%{opacity:.35}}
@keyframes mbc-dot{0%,60%,100%{transform:translateY(0);opacity:.5}30%{transform:translateY(-4px);opacity:1}}

@media (max-width:600px){.mbc{inset-inline-end:14px;inset-block-end:74px}}
@media (prefers-reduced-motion:reduce){.mbc *,.mbc *::before,.mbc *::after{animation:none!important;transition:none!important}}


/* ---- نسخه 0.1.8: افکت‌های جدید ---- */
/* ورود پیام‌ها از دو طرف با فنر کوچک */
.mbc-m.visitor{transform-origin:100% 100%;animation:mbc-from-r .45s cubic-bezier(.2,.9,.3,1.25) both}
.mbc-m.bot,.mbc-m.admin{transform-origin:0 100%;animation:mbc-from-l .45s cubic-bezier(.2,.9,.3,1.25) both}
@keyframes mbc-from-r{from{opacity:0;transform:translateX(26px) scale(.82)}to{opacity:1;transform:none}}
@keyframes mbc-from-l{from{opacity:0;transform:translateX(-26px) scale(.82)}to{opacity:1;transform:none}}

/* گزینه‌ها پله‌پله */
.mbc-opts button{animation-name:mbc-opt;animation-duration:.45s;animation-timing-function:cubic-bezier(.2,.9,.3,1.2)}
.mbc-opts button:nth-child(2){animation-delay:.09s}
.mbc-opts button:nth-child(3){animation-delay:.18s}
.mbc-opts button:nth-child(4){animation-delay:.27s}
.mbc-opts button:nth-child(5){animation-delay:.36s}
.mbc-opts button:nth-child(n+6){animation-delay:.45s}
@keyframes mbc-opt{from{opacity:0;transform:translateX(18px) scale(.94)}to{opacity:1;transform:none}}

/* نقطه‌های تایپ: موج */
.mbc-dots i:nth-child(2){animation-delay:.12s}
.mbc-dots i:nth-child(3){animation-delay:.24s}
@keyframes mbc-dot{0%,60%,100%{transform:translateY(0) scale(1);opacity:.45}30%{transform:translateY(-6px) scale(1.2);opacity:1}}

/* بسته شدن نرم پنل و برگشت دکمه */
.mbc-panel.out{animation:mbc-out .22s ease-in both}
@keyframes mbc-out{to{opacity:0;transform:translateY(24px) scale(.82)}}
.mbc-launch.back{animation:mbc-back .4s cubic-bezier(.2,.9,.3,1.5) both}
@keyframes mbc-back{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:none}}

/* حباب خوشامد */
.mbc-hello{position:absolute;inset-block-end:calc(100% + 12px);inset-inline-end:0;display:flex;align-items:center;gap:4px;background:#fff;color:#1f2937;border-radius:16px;border-end-end-radius:4px;padding:4px 6px 4px 4px;box-shadow:0 10px 30px rgba(0,0,0,.18);white-space:nowrap;transform-origin:100% 100%;animation:mbc-hello-in .5s cubic-bezier(.2,.9,.3,1.4) both}
.mbc-hello.out{animation:mbc-out .22s ease-in both}
.mbc-hello-t{background:none;border:0;padding:6px 10px;cursor:pointer;color:inherit}
.mbc-hello-x{background:#f3f4f6;border:0;width:22px;height:22px;border-radius:50%;line-height:1;cursor:pointer;color:#6b7280;transition:background .2s,color .2s}
.mbc-hello-x:hover{background:#e6282b;color:#fff}
@keyframes mbc-hello-in{from{opacity:0;transform:translateY(10px) scale(.7)}to{opacity:1;transform:none}}

/* نشان پیام جدید روی دکمه */
.mbc-launch .mbc-badge{position:absolute;top:-8px;left:-6px;min-width:22px;height:22px;padding:0 6px;border-radius:11px;background:#111827;color:#fff;border:2px solid #fff;font-size:12px;font-weight:bold;line-height:18px;text-align:center;animation:mbc-badge .55s cubic-bezier(.2,.9,.3,1.7) both}
@keyframes mbc-badge{from{opacity:0;transform:scale(.2)}60%{transform:scale(1.35)}to{opacity:1;transform:none}}
.mbc-launch.has-new::after{animation-duration:1.3s;animation-delay:0s}


/* ---- نسخه 0.2.0: آواتار ربات، نوار مرحله‌ها، موج لمسی، تایپ حرف‌به‌حرف ---- */

/* ردیف پیام بات/پشتیبان با آواتار */
.mbc-row{display:flex;align-items:flex-end;gap:6px;align-self:flex-end;max-width:94%}
.mbc-row .mbc-m{max-width:none;min-width:0}
.mbc-rest{visibility:hidden}

.mbc-av{flex:none;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#e6282b,#ff6a3d);display:flex;align-items:center;justify-content:center;box-shadow:0 3px 8px rgba(230,40,43,.3);animation:mbc-avpop .5s cubic-bezier(.2,.9,.3,1.6) both}
.mbc-av svg{width:100%;height:100%;display:block;padding:3px;box-sizing:border-box}
.mbc-av.admin{background:#111827;box-shadow:0 3px 8px rgba(17,24,39,.25)}
.mbc-av.admin svg{padding:6px}
.mbc-av.sp{visibility:hidden;animation:none;box-shadow:none}
.mbc-eyes{transform-box:fill-box;transform-origin:center;animation:mbc-eye 5.5s 1s infinite}
.mbc-ant{animation:mbc-ant 2.4s ease-in-out infinite}
.mbc-row.typing .mbc-av{animation:mbc-tilt .9s ease-in-out infinite}
.mbc-row.typing .mbc-ant{animation-duration:.6s}
@keyframes mbc-avpop{from{opacity:0;transform:scale(.3) rotate(-25deg)}to{opacity:1;transform:none}}
@keyframes mbc-eye{0%,93%,100%{transform:scaleY(1)}96%{transform:scaleY(.1)}}
@keyframes mbc-ant{0%,100%{opacity:1}50%{opacity:.45}}
@keyframes mbc-tilt{0%,100%{transform:rotate(-8deg) translateY(0)}50%{transform:rotate(8deg) translateY(-2px)}}

/* نوار مرحله‌ها */
.mbc-steps{display:flex;gap:8px;padding:9px 16px 7px;background:#fff;border-bottom:1px solid #f1f1f1;max-height:60px;overflow:hidden;transition:max-height .45s ease,opacity .35s ease,padding .45s ease,border-color .45s}
.mbc-steps.gone{max-height:0;opacity:0;padding-block:0;border-color:transparent}
.mbc-seg{flex:1;min-width:0;font-size:11px;line-height:1.4;color:#9ca3af;transition:color .3s}
.mbc-seg-bar{display:block;height:4px;border-radius:2px;background:#eceef1;margin-bottom:4px;overflow:hidden;position:relative}
.mbc-seg-bar::after{content:"";position:absolute;inset-block:0;inset-inline-start:0;width:0;border-radius:inherit;background:linear-gradient(90deg,#e6282b,#ff6a3d);transition:width .55s cubic-bezier(.2,.9,.3,1)}
.mbc-seg.on{color:#1f2937;font-weight:bold}
.mbc-seg.on .mbc-seg-bar::after{width:50%}
.mbc-seg.done{color:#e6282b}
.mbc-seg.done .mbc-seg-bar::after{width:100%}
.mbc-seg.done span::before{content:"✓ ";font-weight:bold}

/* موج لمسی */
.mbc-opts button,.mbc-send button,.mbc-go{position:relative;overflow:hidden}
.mbc-rip{position:absolute;border-radius:50%;background:currentColor;opacity:.3;transform:scale(0);pointer-events:none;animation:mbc-rip .6s ease-out forwards}
@keyframes mbc-rip{to{transform:scale(1);opacity:0}}

@media (prefers-reduced-motion:reduce){.mbc-rip{display:none}}

/* محو شدن دکمه هنگام اسکرول به پایین */
.mbc-launch.away{animation:mbc-away .3s ease-in both;pointer-events:none}
@keyframes mbc-away{to{opacity:0;transform:translateY(26px) scale(.8);visibility:hidden}}
@media (prefers-reduced-motion:reduce){.mbc-launch.away{opacity:0;visibility:hidden}}