:root{--bg:#0a0f14;--ink:#eaf4fb;--muted:#8ea9bd;--line:rgba(130,190,235,.14);--card:rgba(18,30,40,.62);--sky:#38bdf8;--cyan:#22d3ee;--grad:linear-gradient(105deg,#38bdf8,#22d3ee 50%,#2dd4bf);--mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;--radius:20px;--shadow:0 30px 80px -30px rgba(0,0,0,.8)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.5}.bg-wrap{position:fixed;inset:0;z-index:-3;background:radial-gradient(1200px 800px at 82% -12%,#0e2434 0,transparent 60%),radial-gradient(1000px 700px at 4% 110%,#0b1e2b 0,transparent 55%),var(--bg)}.blob{position:fixed;border-radius:50%;filter:blur(85px);opacity:.36;z-index:-2;animation:float 27s ease-in-out infinite;will-change:transform}.b1{width:44vw;height:44vw;left:-12vw;top:-14vw;background:radial-gradient(circle at 30% 30%,#38bdf8,transparent 66%)}.b2{width:42vw;height:42vw;right:-14vw;top:8vh;background:radial-gradient(circle at 60% 40%,#2dd4bf,transparent 64%);animation-delay:-9s}.b3{width:40vw;height:40vw;left:26vw;bottom:-22vw;background:radial-gradient(circle at 50% 50%,#22d3ee,transparent 62%);animation-delay:-16s}@keyframes float{0%,to{transform:translate(0) scale(1)}33%{transform:translate(4vw,3vh) scale(1.07)}66%{transform:translate(-3vw,-2vh) scale(.95)}}.grid-overlay{position:fixed;inset:0;z-index:-1;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:54px 54px;-webkit-mask-image:radial-gradient(1100px 700px at 50% -5%,#000 0,transparent 78%);mask-image:radial-gradient(1100px 700px at 50% -5%,#000 0,transparent 78%);opacity:.5}@media (prefers-reduced-motion:reduce){.blob{animation:none}}.shell{max-width:900px;margin:0 auto;padding:30px 22px 60px}.brand-row{display:flex;align-items:center;gap:11px;margin-bottom:30px}.logo-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--grad);box-shadow:0 8px 26px -8px rgba(34,211,238,.6)}.wordmark{font-weight:800;font-size:20px;letter-spacing:-.02em}.wordmark b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.hero{text-align:center;margin:6px auto 24px;max-width:660px}.hero h1{font-size:clamp(30px,5.4vw,50px);line-height:1.05;letter-spacing:-.035em;font-weight:850;margin:0 0 12px}.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{color:var(--muted);font-size:clamp(15px,2.2vw,17px);margin:0 auto;max-width:560px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:var(--shadow)}.cats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.cat{background:none;border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:8px 14px;font-size:12.5px;font-weight:600;cursor:pointer;transition:all .15s ease}.cat.active{background:var(--grad);color:#08131a;border-color:transparent}.conv{display:grid;grid-template-columns:1fr auto 1fr;grid-gap:14px;gap:14px;align-items:end}@media (max-width:620px){.conv{grid-template-columns:1fr}.swap{justify-self:center;transform:rotate(90deg)}}.slot{display:flex;flex-direction:column;gap:6px;min-width:0}.slot label{font-size:11.5px;color:var(--muted);font-weight:600}.slot input,.slot select{width:100%;background:rgba(10,15,20,.72);border:1px solid var(--line);color:var(--ink);border-radius:11px;padding:12px 13px;font-size:15px;outline:none;transition:border-color .15s ease,box-shadow .15s ease}.slot input{font-family:var(--mono)}.slot input:focus,.slot select:focus{border-color:var(--sky);box-shadow:0 0 0 3px rgba(56,189,248,.16)}.slot input::placeholder{color:#4a6577}.slot select{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 18px,calc(100% - 13px) 18px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:34px}.slot .out{font-family:var(--mono);font-size:20px;font-weight:750;color:var(--cyan);padding:11px 13px;border:1px solid var(--line);border-radius:11px;background:rgba(34,211,238,.06);word-break:break-all;min-height:46px;display:flex;align-items:center}.swap{align-self:center;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);color:var(--sky);width:40px;height:40px;border-radius:11px;cursor:pointer;display:grid;place-items:center;margin-bottom:3px;transition:background .15s ease}.swap:hover{background:rgba(56,189,248,.22)}.tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px}.chip{background:rgba(56,189,248,.1);color:var(--sky);border:1px solid rgba(56,189,248,.3);border-radius:9px;padding:7px 12px;font-size:12.5px;font-weight:600;cursor:pointer}.chip:hover{background:rgba(56,189,248,.2)}.eq{color:var(--muted);font-size:13px}.eq b{color:var(--ink);font-family:var(--mono)}.footer{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center;color:var(--muted);font-size:13px}.footer .sep{opacity:.4}