:root{--bg:#060a12;--ink:#eaf1ff;--muted:#8ba0c0;--line:rgba(140,170,220,.14);--card:rgba(15,24,42,.62);--teal:#2dd4bf;--blue:#3b82f6;--warm:#fb923c;--grad:linear-gradient(105deg,#2dd4bf,#3b82f6 55%,#6366f1);--radius:20px;--shadow:0 30px 80px -30px rgba(0,0,0,.75)}*{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 80% -10%,#0a1b2c 0,transparent 60%),radial-gradient(1000px 700px at 6% 108%,#0c182f 0,transparent 55%),var(--bg)}.blob{position:fixed;border-radius:50%;filter:blur(80px);opacity:.46;z-index:-2;animation:float 24s ease-in-out infinite;will-change:transform}.b1{width:46vw;height:46vw;left:-12vw;top:-14vw;background:radial-gradient(circle at 30% 30%,#2dd4bf,transparent 65%)}.b2{width:42vw;height:42vw;right:-14vw;top:10vh;background:radial-gradient(circle at 60% 40%,#3b82f6,transparent 62%);animation-delay:-8s}.b3{width:38vw;height:38vw;left:24vw;bottom:-20vw;background:radial-gradient(circle at 50% 50%,#6366f1,transparent 60%);animation-delay:-15s}@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:940px;margin:0 auto;padding:30px 22px 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b{color:var(--teal);font-weight:700}.tabs{display:flex;gap:8px;justify-content:center;margin:0 auto 18px;flex-wrap:wrap}.tab{background:rgba(140,170,220,.06);border:1px solid var(--line);color:var(--muted);padding:9px 18px;border-radius:999px;font-size:14px;font-weight:650;cursor:pointer;transition:all .18s ease}.tab:hover{color:var(--ink)}.tab.active{color:#05121a;background:var(--grad);border-color:transparent;box-shadow:0 10px 26px -12px rgba(45,212,191,.6)}.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)}.field{margin-bottom:16px}.field:last-child{margin-bottom:0}.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;font-weight:600}.row2{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}@media (max-width:560px){.row2{grid-template-columns:1fr}}input,select{width:100%;background:rgba(6,10,18,.7);border:1px solid var(--line);color:var(--ink);border-radius:11px;padding:12px 13px;font-size:15px;font-family:inherit;outline:none;transition:border-color .15s ease,box-shadow .15s ease}input::placeholder{color:#4a5c7a}input:focus,select:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(45,212,191,.16)}select{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;padding-right:34px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238ba0c0' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}.quick{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.chip{background:rgba(45,212,191,.1);color:var(--teal);border:1px solid rgba(45,212,191,.3);border-radius:9px;padding:6px 11px;font-size:12.5px;font-weight:600;cursor:pointer;transition:background .15s ease,transform .15s ease}.chip:hover{background:rgba(45,212,191,.2);transform:translateY(-1px)}.toggle-row{display:flex;align-items:center;gap:10px;margin-top:16px;color:var(--muted);font-size:13.5px}.switch{position:relative;width:44px;height:24px;flex:none}.switch input{opacity:0;width:0;height:0;position:absolute}.slider{position:absolute;inset:0;background:rgba(140,170,220,.2);border-radius:999px;transition:background .2s ease;cursor:pointer}.slider:before{content:"";position:absolute;height:18px;width:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:transform .2s ease}.switch input:checked+.slider{background:var(--teal)}.switch input:checked+.slider:before{transform:translateX(20px)}.err{margin-top:14px;color:#fca5a5;background:hsla(0,91%,71%,.1);border:1px solid hsla(0,91%,71%,.28);border-radius:11px;padding:10px 13px;font-size:13.5px}.result{margin-top:20px}.big-result{text-align:center;padding:22px;border-radius:16px;background:linear-gradient(180deg,rgba(45,212,191,.1),rgba(59,130,246,.06));border:1px solid var(--line)}.big-result .value{font-size:clamp(30px,7vw,46px);font-weight:850;letter-spacing:-.03em;line-height:1.1}.big-result .value span{font-size:17px;color:var(--muted);font-weight:600}.big-result .label{color:var(--muted);font-size:13px;margin-top:6px;text-transform:uppercase;letter-spacing:.12em}.subgrid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:12px;gap:12px;margin-top:14px}@media (max-width:560px){.subgrid{grid-template-columns:1fr}}.stat{background:rgba(140,170,220,.06);border:1px solid var(--line);border-radius:13px;padding:14px;text-align:center}.stat .v{font-size:22px;font-weight:800}.stat .l{color:var(--muted);font-size:12px;margin-top:3px}.result-empty{color:var(--muted);text-align:center;padding:40px 20px;font-size:14.5px}.footer{margin-top:38px;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center;color:var(--muted);font-size:13px}.footer .sep{opacity:.4}