:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#111b19;color:#f3efe5}
*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at top right,#243f34 0,transparent 50%),#111b19}
main{width:min(960px,calc(100% - 32px));margin:0 auto;padding:52px 0 72px}header{margin-bottom:32px}
.eyebrow{font-size:11px;letter-spacing:.22em;color:#9ec5aa;font-weight:700}h1{font-size:clamp(28px,5vw,42px);letter-spacing:-.04em;margin:12px 0 8px}h2{font-size:19px;margin:0}p{line-height:1.55}header p,.hint,footer{color:#aabbb1;font-size:13px}
.card{padding:25px;margin-bottom:18px;border:1px solid #466051;border-radius:18px;background:#1b2925;box-shadow:0 10px 32px #07120e36}.section-head{display:flex;align-items:center;gap:12px;margin-bottom:22px}.number{display:grid;place-items:center;width:29px;height:29px;border-radius:50%;background:#b7d7ad;color:#183020;font-size:11px;font-weight:800}
.grid{display:grid;gap:14px}.four{grid-template-columns:repeat(4,minmax(0,1fr))}.two{grid-template-columns:repeat(2,minmax(0,1fr))}label{display:grid;gap:7px;font-size:12px;color:#bfd1c4;font-weight:600}input{width:100%;padding:12px 13px;border-radius:9px;border:1px solid #617669;background:#111d19;color:#fff;font:inherit;min-height:44px}input:focus{outline:2px solid #a6ca9d;outline-offset:1px}
button{border:0;border-radius:9px;padding:11px 17px;min-height:44px;background:#b7d7ad;color:#102016;font:inherit;font-weight:700;white-space:nowrap;cursor:pointer}button:hover:not(:disabled){background:#c8e9bd}button:disabled{opacity:.42;cursor:not-allowed}.secondary{background:#374d41;color:#e9f2e8}.secondary:hover:not(:disabled){background:#4a6454}
.input-row,.link-box,.actions{display:flex;gap:10px}.input-row input{min-width:0;flex:1}.link-box{align-items:center;margin-top:19px;padding:10px;background:#102019;border:1px solid #3a5543;border-radius:9px}.link-box output{flex:1;overflow-wrap:anywhere;font:12px/1.5 ui-monospace,SFMono-Regular,monospace;color:#d4ead4}.link-box button{font-size:12px}.actions{margin-top:18px}.hint{margin:16px 0 0}.result{margin-top:20px;padding:17px;background:#14241c;border-radius:10px;font-size:14px;line-height:1.7}.result strong{color:#d4f0c9}.result .id{font:12px/1.5 ui-monospace,SFMono-Regular,monospace;overflow-wrap:anywhere}.status{min-height:24px;margin:16px 0 0;color:#c4e0bd}.status.error{color:#f3b5a6}footer{text-align:center;margin-top:28px}
@media(max-width:700px){main{padding-top:26px}.four,.two{grid-template-columns:1fr 1fr}.card{padding:18px}.link-box{align-items:stretch;flex-direction:column}}@media(max-width:480px){.four,.two{grid-template-columns:1fr}.input-row{flex-direction:column}.actions{flex-direction:column}}