:root{--bg:#F7F9FC;--ink:#1F2A44;--muted:#667085;--line:#E6EAF2;--brand:#3563E9;--brand-d:#2849B8;--brand-soft:#EAF0FF;
--accent:#FF9F43;--accent-soft:#FFF1E0;--mint:#16B9A6;--mint-soft:#DFF7F3;--rose:#F0587A;--rose-soft:#FFE8EE;
--bs-body-bg:var(--bg);--bs-body-color:var(--ink);--bs-body-font-family:'Plus Jakarta Sans',system-ui,sans-serif;--bs-primary:var(--brand);--bs-link-color:var(--brand)}
body{background:var(--bg);color:var(--ink);padding-top:env(safe-area-inset-top,0);padding-bottom:env(safe-area-inset-bottom,0)}
html{scroll-behavior:smooth;scroll-padding-top:76px}
h1,h2,h3,h4,h5{font-weight:800;letter-spacing:-.02em}
.text-muted2{color:var(--muted)}
.navbar{background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.navbar-brand{font-weight:800;color:var(--ink)}
.logo{display:inline-flex;width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--brand),#6C8CFF);color:#fff;align-items:center;justify-content:center;margin-right:8px;font-size:15px}
.nav-link{color:var(--ink);font-weight:600}.nav-link:hover{color:var(--brand)}
.btn{border-radius:12px;font-weight:700;padding:.6rem 1.2rem}
.btn-brand{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(53,99,233,.25)}
.btn-brand:hover{background:var(--brand-d);border-color:var(--brand-d);color:#fff}
.btn-soft{background:#fff;border:1px solid var(--line);color:var(--ink)}.btn-soft:hover{background:var(--brand-soft);color:var(--brand)}
.card-s{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 10px 30px rgba(31,42,68,.06)}
.form-control,.form-select{border-radius:12px;border-color:var(--line);padding:.7rem .9rem;background:#fff}
.form-control:focus{border-color:var(--brand);box-shadow:0 0 0 .2rem rgba(53,99,233,.15)}
.form-label{font-weight:600;font-size:.9rem}
section{padding:72px 0}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:var(--brand-soft);padding:6px 12px;border-radius:99px;margin-bottom:12px}
.sec-title{font-size:clamp(1.7rem,3.6vw,2.4rem)}

/* hero */
.hero{position:relative;overflow:hidden;padding:64px 0 80px;background:linear-gradient(135deg,#EAF0FF 0%,#F7F9FC 48%,#FFF1E0 100%)}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;z-index:0}
.hero:before{width:340px;height:340px;background:#BBD0FF;top:-90px;right:8%}.hero:after{width:280px;height:280px;background:#FFD7A8;bottom:-90px;left:4%}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:clamp(2.2rem,5.4vw,3.8rem);line-height:1.08}
.hl{background:linear-gradient(transparent 62%,#FFD7A8 62%)}
.chip{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:99px;padding:7px 14px;font-weight:600;font-size:.88rem;box-shadow:0 4px 12px rgba(31,42,68,.05)}
.chip i{color:var(--brand)}
.phone{width:290px;max-width:100%;margin:auto;background:#fff;border:9px solid var(--ink);border-radius:42px;padding:16px 14px 20px;box-shadow:0 30px 60px rgba(31,42,68,.22);position:relative}
.phone:before{content:"";display:block;width:70px;height:6px;background:var(--ink);border-radius:9px;margin:0 auto 14px;opacity:.9}
.bub{padding:10px 13px;border-radius:16px;font-size:.88rem;margin-bottom:10px;max-width:88%;line-height:1.35}
.bub small{display:block;font-weight:800;font-size:.66rem;letter-spacing:.06em;margin-bottom:2px;opacity:.7}
.bub.me{background:var(--brand-soft);color:#223A86;border-bottom-left-radius:4px}
.bub.them{background:var(--accent-soft);color:#7A4300;margin-left:auto;border-bottom-right-radius:4px}
.mic{display:flex;gap:14px;justify-content:center;margin-top:14px}
.mic span{width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px}
.mic .a{background:linear-gradient(135deg,var(--brand),#6C8CFF);box-shadow:0 8px 18px rgba(53,99,233,.35)}.mic .b{background:linear-gradient(135deg,var(--mint),#58D8C8);box-shadow:0 8px 18px rgba(22,185,166,.35)}
.float{position:absolute;background:#fff;border-radius:14px;padding:8px 12px;font-weight:700;font-size:.82rem;box-shadow:0 12px 26px rgba(31,42,68,.14)}
.float.f1{top:60px;left:-34px}.float.f2{bottom:90px;right:-30px}
@media(max-width:575px){.float.f1{left:-4px}.float.f2{right:-4px}}

/* langs */
.langs{padding:28px 0;background:#fff;border-block:1px solid var(--line)}
.lang-pill{display:inline-block;margin:5px;padding:8px 16px;border-radius:99px;font-weight:700;background:var(--bg);border:1px solid var(--line)}
.lang-pill:nth-child(3n+1){background:var(--brand-soft)}.lang-pill:nth-child(3n+2){background:var(--accent-soft)}.lang-pill:nth-child(3n){background:var(--mint-soft)}

/* feature cards */
.ico{width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:14px}
.i-b{background:var(--brand-soft);color:var(--brand)}.i-o{background:var(--accent-soft);color:#E27D0B}.i-m{background:var(--mint-soft);color:#0E9A8A}.i-r{background:var(--rose-soft);color:var(--rose)}
.feat{padding:26px;height:100%;transition:transform .2s}.feat:hover{transform:translateY(-4px)}
.steps{counter-reset:s}.step{position:relative;padding:26px;height:100%}
.step:before{counter-increment:s;content:counter(s);display:flex;width:42px;height:42px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:14px}
.band{background:linear-gradient(135deg,var(--brand),#5B84FF);color:#fff;border-radius:28px;padding:40px 24px}
.band .n{font-size:2.3rem;font-weight:800;line-height:1}.band .l{opacity:.85;font-weight:600}
.use{border-radius:22px;padding:26px;height:100%}
.use .q{background:rgba(255,255,255,.75);border-radius:12px;padding:8px 12px;font-size:.85rem;font-weight:600;margin-top:8px}
.u1{background:linear-gradient(160deg,#E4ECFF,#fff)}.u2{background:linear-gradient(160deg,#FFEBD3,#fff)}.u3{background:linear-gradient(160deg,#D8F5F0,#fff)}.u4{background:linear-gradient(160deg,#FFE0E8,#fff)}
.price{font-size:3.2rem;font-weight:800;line-height:1}
.pay-box{white-space:pre-line;background:var(--accent-soft);border:1px dashed var(--accent);border-radius:14px;padding:14px;font-family:ui-monospace,Menlo,monospace;font-size:.85rem}
.accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;margin-bottom:10px;overflow:hidden}
.accordion-button{font-weight:700;background:#fff}.accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-soft);box-shadow:none}
.cta{background:linear-gradient(135deg,#1F2A44,#34457A);color:#fff;border-radius:28px;padding:48px 24px}
footer{padding:28px 0;color:var(--muted);font-size:.9rem}
.auth-wrap{min-height:calc(100vh - 70px);display:flex;align-items:center;padding:32px 0;background:linear-gradient(135deg,#EAF0FF,#F7F9FC 55%,#FFF1E0)}
.auth-card{max-width:440px;margin:auto;padding:30px}
.app-logo{width:64px;height:64px;border-radius:20px;background:linear-gradient(135deg,var(--brand),#6C8CFF);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 14px;box-shadow:0 12px 26px rgba(53,99,233,.3)}