:root{--bg:#070920;--line:rgba(120,140,255,.22);--text:#eef1ff;--mute:#a3acd9;--cyan:#35e0ff;--violet:#8b5cff;--pink:#ff4fd8;--panel:rgba(9,12,38,.78)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Sora',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
#bg{position:fixed;inset:0;width:100%;height:100%;z-index:-2;opacity:.55;pointer-events:none}
body::before{content:"";position:fixed;inset:0;z-index:-3;background:radial-gradient(60vmax 40vmax at 15% -10%,rgba(139,92,255,.35),transparent 70%),radial-gradient(50vmax 40vmax at 90% 100%,rgba(53,224,255,.25),transparent 70%);animation:aur 18s ease-in-out infinite alternate}
@keyframes aur{to{transform:translate(2vmax,3vmax) scale(1.08)}}
a{color:var(--cyan)}
.wrap{max-width:940px;margin:0 auto;padding:0 20px}
.top{max-width:980px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:20px}
.logo{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:1.2rem;text-decoration:none;color:var(--text)}
.logo span.t{display:inline}.logo b{background:linear-gradient(90deg,var(--cyan),var(--pink));-webkit-background-clip:text;background-clip:text;color:transparent}
.eq{display:flex;align-items:center;gap:3px;height:24px}
.eq i{width:4px;height:100%;border-radius:3px;background:linear-gradient(var(--cyan),var(--violet));animation:eq 1.1s ease-in-out infinite;transform-origin:center}
.eq i:nth-child(2){animation-delay:-.3s}.eq i:nth-child(3){animation-delay:-.6s}.eq i:nth-child(4){animation-delay:-.9s}
@keyframes eq{0%,100%{transform:scaleY(.25)}50%{transform:scaleY(1)}}
nav a{color:var(--mute);text-decoration:none;margin-left:22px;font-size:.9rem;transition:color .2s}
nav a:hover{color:var(--text)}
.hero{text-align:center;padding:40px 0 10px}
h1{font-size:clamp(2rem,6vw,3.5rem);line-height:1.12;font-weight:800;letter-spacing:-.02em;max-width:18ch;margin:0 auto 16px}
.sub{color:var(--mute);max-width:56ch;margin:0 auto;font-weight:300;font-size:1.05rem}
.badges{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:22px 0 6px}
.badges b{font-weight:400;font-size:.8rem;padding:6px 14px;border:1px solid var(--line);border-radius:99px;background:var(--panel)}
#wave{display:block;width:100%;height:84px;margin:6px 0 16px}
.card{position:relative;padding:2px;border-radius:24px;overflow:hidden;box-shadow:0 0 70px rgba(139,92,255,.15)}
.card::before{content:"";position:absolute;inset:-80%;background:conic-gradient(from 0deg,transparent 0 62%,var(--cyan),var(--violet),var(--pink),transparent);animation:spin 7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.card .in{position:relative;background:#0a0d2c;border-radius:22px;padding:24px}
#drop{display:block;position:relative;border:1.5px dashed rgba(53,224,255,.45);border-radius:16px;padding:40px 18px;text-align:center;cursor:pointer;transition:background .25s,border-color .25s}
#drop:hover,#drop.over{background:rgba(53,224,255,.07);border-color:var(--cyan)}
#drop input{position:absolute;inset:0;opacity:0;cursor:pointer}
#drop strong{display:block;font-size:1.15rem;margin-bottom:4px}
#drop small{color:var(--mute)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:18px 0}
label.f{font-size:.82rem;color:var(--mute);display:block}
select{width:100%;margin-top:6px;padding:12px;border-radius:12px;border:1px solid var(--line);background:#0d1034;color:var(--text);font:inherit;font-size:.92rem}
select:focus-visible,button:focus-visible,summary:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.btn{width:100%;padding:15px;border:0;border-radius:14px;font:inherit;font-weight:600;font-size:1rem;color:#05061a;cursor:pointer;background:linear-gradient(100deg,var(--cyan),var(--violet) 55%,var(--pink));background-size:200% 100%;transition:background-position .5s,box-shadow .3s}
.btn:hover:not(:disabled){background-position:100% 0;box-shadow:0 0 30px rgba(139,92,255,.5)}
.btn:disabled{opacity:.45;cursor:not-allowed}
#status{display:none;margin-top:18px}
#status p{font-size:.88rem;color:var(--mute);margin-bottom:8px;display:flex;justify-content:space-between;gap:10px}
.bar{height:6px;border-radius:9px;background:rgba(255,255,255,.08);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:9px;background:linear-gradient(90deg,var(--cyan),var(--pink));transition:width .4s}
.bar.ind i{width:35%;animation:sl 1.3s ease-in-out infinite alternate}
@keyframes sl{from{margin-left:0}to{margin-left:65%}}
#result{display:none;margin-top:22px}
.tools{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;align-items:center}
.tools button{padding:9px 15px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);font:inherit;font-size:.82rem;cursor:pointer;transition:.2s}
.tools button:hover{border-color:var(--cyan);background:rgba(53,224,255,.1)}
.tools label{margin-left:auto;font-size:.82rem;color:var(--mute);cursor:pointer}
#out{min-height:200px;max-height:460px;overflow:auto;padding:18px;border-radius:14px;background:#080a24;border:1px solid var(--line);font-size:.95rem;white-space:pre-wrap}
#out div{margin-bottom:6px}
#out time{color:var(--cyan);font-size:.78rem;margin-right:10px}
.err{color:#ff7a9c}
section,.doc{margin:30px 0;background:var(--panel);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:20px;padding:28px}
h2{font-size:1.5rem;margin:26px 0 12px;letter-spacing:-.01em}
section h2:first-child,.doc h2:first-child{margin-top:0}
.doc h1{font-size:clamp(1.7rem,5vw,2.4rem);max-width:none;margin:0 0 14px;text-align:left}
p{color:var(--mute);margin-bottom:14px;max-width:70ch}
li{color:var(--mute);margin:0 0 8px 22px;max-width:70ch}
.steps,.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-top:16px}
.steps div,.cards a{padding:18px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.03);text-decoration:none;color:var(--text);transition:border-color .25s,transform .25s}
.cards a:hover{border-color:var(--cyan);transform:translateY(-3px)}
.steps h3,.cards b{display:block;font-size:1rem;margin-bottom:6px}
.steps p,.cards span{font-size:.9rem;margin:0;color:var(--mute)}
details{border-bottom:1px solid var(--line);padding:14px 0}
summary{cursor:pointer;font-weight:600;list-style:none}
summary::after{content:"+";float:right;color:var(--cyan);transition:transform .25s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:10px 0 0}
footer{border-top:1px solid var(--line);padding:30px 20px 50px;color:var(--mute);font-size:.85rem;text-align:center}
footer p{margin:0 auto;max-width:none}footer a{margin:0 10px;color:var(--mute)}
@media(max-width:620px){.row{grid-template-columns:1fr}nav a:not(:last-child){display:none}.tools label{margin-left:0}section,.doc{padding:20px}}
@media(prefers-reduced-motion:reduce){*,::before,::after{animation:none!important;transition:none!important}}
.by{font-size:.82rem;color:var(--mute);opacity:.85;margin:-4px 0 18px}.doc code{background:#0d1034;border:1px solid var(--line);padding:2px 6px;border-radius:6px;font-size:.85em;color:var(--text);word-break:break-all}.doc b{color:var(--text)}
.ad{display:none;margin:26px 0;min-height:100px;border-radius:14px;overflow:hidden}.ad.show{display:block}.ad.prev{display:flex;align-items:center;justify-content:center;border:1px dashed var(--line);color:var(--mute);font-size:.75rem}.ad.prev::before{content:"Advertisement (preview)"}
form input,form textarea{width:100%;margin:6px 0 14px;padding:12px;border-radius:12px;border:1px solid var(--line);background:#0d1034;color:var(--text);font:inherit;font-size:.95rem}
#ck{position:fixed;left:16px;right:16px;bottom:16px;max-width:760px;margin:auto;z-index:50;background:rgba(10,13,44,.97);border:1px solid var(--line);border-radius:16px;padding:16px 18px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;box-shadow:0 10px 50px rgba(0,0,0,.55);animation:up .5s ease}
#ck p{flex:1 1 280px;margin:0;font-size:.85rem;max-width:none}
#ck div{display:flex;gap:10px}
#ck button{padding:10px 20px;border-radius:10px;font:inherit;font-size:.85rem;cursor:pointer;border:1px solid var(--line);background:transparent;color:var(--text)}
#ck button.y{border:0;color:#05061a;font-weight:600;background:linear-gradient(100deg,var(--cyan),var(--violet))}
@keyframes up{from{transform:translateY(20px);opacity:0}}