:root{--primary:#2f7fc8;--primaryDark:#1b4f8f;--accent:#62c0e3;--dark:#1f2430;--glass:rgba(24,29,40,.86)}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:#dfe8f1;font-family:"Poppins","Hind Siliguri","Nirmala UI","Noto Sans Bengali","Segoe UI",Arial,sans-serif;color:#fff;overflow:hidden}
#c{position:fixed;inset:0;width:100%;height:100%;display:block;outline:none}
#ui{position:fixed;inset:0;pointer-events:none}
#ui>*{pointer-events:auto}
.hidden{display:none!important}
button{font-family:inherit;cursor:pointer}
#top{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;gap:8px;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;background:linear-gradient(180deg,rgba(255,255,255,.92),rgba(255,255,255,0));pointer-events:none}
#top>*{pointer-events:auto}
#topLogo{height:44px;border-radius:8px;background:#fff;box-shadow:0 4px 16px rgba(20,40,80,.18)}
.grow{flex:1}
.chip{border:0;border-radius:99px;padding:8px 14px;font-size:12px;font-weight:600;color:#fff;background:var(--dark);box-shadow:0 4px 14px rgba(0,0,0,.2)}
.chip:hover{background:var(--primaryDark)}
#hint{background:var(--glass);padding:8px 14px;border-radius:99px;font-size:12px;font-weight:500;backdrop-filter:blur(8px)}

#dialog{position:absolute;left:50%;bottom:calc(18px + env(safe-area-inset-bottom));transform:translateX(-50%);width:min(780px,calc(100% - 24px));background:var(--glass);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.14);border-radius:20px;padding:16px 20px 18px;box-shadow:0 18px 50px rgba(0,0,0,.35);animation:rise .35s ease}
@keyframes rise{from{opacity:0;transform:translate(-50%,16px)}to{opacity:1;transform:translate(-50%,0)}}
.who{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));display:grid;place-items:center;font-weight:700;overflow:hidden;background-size:cover;background-position:center top;border:2px solid rgba(255,255,255,.6)}
.who b{display:block;font-size:15px}.who small{display:block;color:var(--accent);font-size:12px}
#line{margin:0 0 4px;font-size:16.5px;line-height:1.55;min-height:26px}
#options{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.opt{display:inline-flex;align-items:center;gap:8px;border:1.5px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;border-radius:12px;padding:10px 16px;font-size:14.5px;font-weight:500;transition:.18s}
.opt:hover{background:linear-gradient(135deg,var(--primary),var(--primaryDark));border-color:transparent;transform:translateY(-2px)}
.opt img{width:26px;height:18px;object-fit:cover;border-radius:3px}
.inputrow{display:flex;gap:10px;width:100%}
.inputrow input,.inputrow select{flex:1;border-radius:12px;border:1.5px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);color:#fff;padding:11px 14px;font:inherit;font-size:15px;outline:none}
.inputrow select option{color:#111}
.inputrow input:focus,.inputrow select:focus{border-color:var(--accent)}
.inputrow .err{border-color:#ff7a7a}
.primary{border:0;background:linear-gradient(135deg,var(--primary),var(--primaryDark));color:#fff;border-radius:12px;padding:11px 22px;font-weight:600;font-size:14.5px;box-shadow:0 8px 20px rgba(27,79,143,.35)}
.primary:hover{filter:brightness(1.1)}
.primary:disabled{opacity:.5;cursor:default}
.ghost{border:1.5px solid rgba(255,255,255,.3);background:transparent;color:#fff;border-radius:12px;padding:11px 18px;font-weight:500}
.big{font-size:16px;padding:14px 34px;border-radius:99px}

#you{pointer-events:none!important;position:absolute;left:50%;bottom:calc(210px + env(safe-area-inset-bottom));transform:translateX(-50%);background:#fff;color:var(--dark);padding:9px 18px;border-radius:99px;font-weight:600;font-size:14px;box-shadow:0 8px 24px rgba(0,0,0,.25);animation:pop 1.6s ease forwards}
@keyframes pop{0%{opacity:0;transform:translate(-50%,10px)}12%{opacity:1;transform:translate(-50%,0)}80%{opacity:1}100%{opacity:0}}

#formWrap{position:absolute;inset:0;display:grid;place-items:center;background:rgba(10,18,32,.38);backdrop-filter:blur(3px);padding:12px}
#leadForm{width:min(460px,100%);max-height:calc(100% - 24px);overflow:auto;background:#fff;color:var(--dark);border-radius:20px;padding:22px 24px;box-shadow:0 24px 70px rgba(0,0,0,.4);animation:formIn .4s cubic-bezier(.2,.9,.3,1.2)}
@keyframes formIn{from{opacity:0;transform:translateY(40px) scale(.96)}to{opacity:1;transform:none}}
#leadForm h3{margin:0 0 2px;font-size:20px;color:var(--primaryDark)}
#leadForm .sub{margin:0 0 14px;font-size:13px;color:#66707f}
.fld{margin-bottom:12px}
.fld label{display:block;font-size:12px;font-weight:600;margin-bottom:5px;color:#3a4252}
.fld label i{color:#d33;font-style:normal}
.fld input,.fld select,.fld textarea{width:100%;border:1.5px solid #d5dbe5;border-radius:10px;padding:10px 12px;font:inherit;font-size:14.5px;color:var(--dark);background:#f8fafc;outline:none}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--primary);background:#fff}
.fld.bad input,.fld.bad select,.fld.bad textarea{border-color:#e25555}
#formErr{color:#d33;font-size:13px;min-height:18px;margin-bottom:6px}
#leadForm .row{display:flex;gap:10px;justify-content:flex-end}
#leadForm .ghost{color:#556;border-color:#cfd6e2}

#fade{position:absolute;inset:0;background:#0b1220;opacity:0;pointer-events:none!important;transition:opacity .45s}
#fade.on{opacity:1;pointer-events:auto!important}

#intro{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(135deg,rgba(255,255,255,.93),rgba(176,213,244,.9));color:var(--dark);transition:opacity .7s;padding:16px}
#intro.gone{opacity:0;pointer-events:none!important}
#intro .card{text-align:center;max-width:560px}
#introLogo{width:min(420px,80vw);margin-bottom:12px;border-radius:12px}
#intro h1{margin:6px 0;font-size:clamp(24px,4.2vw,38px);color:var(--dark)}
#intro p{margin:0 auto 20px;color:#45506a;font-size:15.5px;line-height:1.6}
.bar{height:6px;border-radius:9px;background:rgba(31,36,48,.12);margin:14px auto 8px;width:min(320px,80%);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width .3s}
#intro small{display:block;margin-bottom:16px;color:#66708a}

#customHTML{position:absolute;pointer-events:none}
#customHTML *{pointer-events:auto}

@media(max-width:640px){
 #dialog{padding:14px;border-radius:16px}#line{font-size:15px}.opt{padding:9px 13px;font-size:13.5px}
 #topLogo{height:34px}.chip{padding:7px 11px;font-size:11px}#hint{display:none}
 #you{bottom:calc(240px + env(safe-area-inset-bottom))}
}

/* language, mic, chat */
#langPick{display:flex;gap:8px;justify-content:center;margin:0 0 6px}
#langPick button{border:1.5px solid var(--primary);background:#fff;color:var(--primaryDark);border-radius:99px;padding:8px 22px;font-weight:600;font-size:14px}
#langPick button.on{background:linear-gradient(135deg,var(--primary),var(--primaryDark));color:#fff;border-color:transparent}
.opt.mic{border-color:var(--accent);background:rgba(98,192,227,.18)}
.opt.mic.live,.mic.live{background:#d33!important;border-color:#d33!important;animation:pulse 1.1s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(221,51,51,.6)}100%{box-shadow:0 0 0 14px rgba(221,51,51,0)}}
.chips{display:flex;flex-wrap:wrap;gap:8px;width:100%;margin-bottom:2px}
.opt.sm{padding:7px 13px;font-size:13px;border-radius:99px}
.row2{display:flex;gap:8px;width:100%;flex-wrap:wrap}
.ghost.sm{padding:7px 14px;font-size:12.5px;border-radius:99px;color:#fff}
.ghost.sm:disabled{opacity:.5}
#options .inputrow{align-items:stretch}
#toast{position:absolute;left:50%;top:calc(70px + env(safe-area-inset-top));transform:translateX(-50%);max-width:min(560px,92%);background:#fff;color:var(--dark);padding:10px 18px;border-radius:14px;font-size:13.5px;line-height:1.5;box-shadow:0 10px 30px rgba(0,0,0,.28);opacity:0;pointer-events:none!important;transition:opacity .3s;text-align:center}
#toast.on{opacity:1}