:root{--navy:#1f2a44;--gold:#b8860b;--bg:#f7f9fc;--bg2:#f7f9fc;--card:#fff;--ink:#1a1f2b;--muted:#5b6573;--line:#e2e8f0;--head:#1f2a44;--link:#1f2a44;--headerBg:#1f2a44;--footerBg:#fff;--po:0;--accentInk:#fff;--outLine:transparent}*{box-sizing:border-box}html{min-height:100%}body{margin:0;min-height:100vh;font-family:var(--font,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif);background:linear-gradient(165deg,var(--bg) 0,var(--bg2) 78%,var(--bg) 100%) fixed;color:var(--ink);line-height:1.6}body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:repeating-linear-gradient(112deg,rgba(255,255,255,var(--po)) 0 1.5px,transparent 1.5px 30px),radial-gradient(140% 100% at 88% -12%,rgba(140,205,255,calc(var(--po)*3.2)) 0,transparent 52%),radial-gradient(120% 160% at -15% 115%,rgba(70,150,220,calc(var(--po)*2.2)) 0,transparent 55%)}a{color:var(--link)}.site-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:var(--headerBg);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:-webkit-sticky;position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line)}.site-header .brand{color:#fff;font-weight:700;text-decoration:none;font-size:18px;letter-spacing:.01em}.site-header nav a{color:#cdd6e6;margin-left:16px;text-decoration:none;font-size:14px;transition:color .15s}.site-header nav a:hover{color:#fff}.container{max-width:780px;margin:0 auto;padding:24px 20px 48px}h1{font-size:32px;margin:8px 0 4px;letter-spacing:-.01em}h1,h2{color:var(--head);font-family:var(--fontHead,inherit)}h2{font-size:22px;margin-top:32px}.lead{color:var(--muted);font-size:17px;margin-top:0}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;margin:20px 0;box-shadow:0 6px 24px rgba(3,12,24,.1);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.ad-slot{min-height:90px;display:flex;align-items:center;justify-content:center;border:1px dashed var(--line);border-radius:8px;color:var(--muted);font-size:13px;margin:20px 0}button{background:var(--navy);color:#fff;border:0;border-radius:9px;padding:11px 18px;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s,transform .1s,box-shadow .2s}button:hover{background:var(--navyDark,#16203a)}button:active{transform:scale(.97)}button:focus-visible{outline:2px solid var(--gold);outline-offset:2px}button:disabled{opacity:.55;cursor:default}.btn-accent{background:var(--gold);color:var(--accentInk)}.btn-accent:hover{background:var(--gold);box-shadow:0 0 18px 0 color-mix(in srgb,var(--gold) 55%,transparent);filter:brightness(1.08)}input[type=range]{width:100%}.output{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:26px;font-weight:600;text-align:center;background:#0f1729;color:#e6edf7;padding:20px 14px;border-radius:10px;border:1px solid var(--outLine);word-break:break-all;min-height:32px;letter-spacing:.02em;animation:fadeIn .45s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:14px 0 10px}label{font-size:14px;color:var(--ink)}.site-footer{border-top:1px solid var(--line);padding:20px;text-align:center;color:var(--muted);font-size:13px;background:var(--footerBg)}.site-footer a{color:var(--link);text-decoration:none}.faq details{border:1px solid var(--line);border-radius:8px;padding:0;margin:10px 0;background:var(--card)}.faq summary{cursor:pointer;padding:14px 16px;font-weight:600;color:var(--head);list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";float:right;color:var(--gold);font-weight:700}.faq details[open] summary:after{content:"\2212"}.faq details p{padding:0 16px 14px;margin:0;color:var(--ink)}.byline{color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:14px;margin-top:28px}section{margin-top:4px}.ip-detail{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));grid-gap:12px;gap:12px;margin:16px 0 8px}.ip-detail div{display:flex;flex-direction:column;background:hsla(0,0%,50%,.06);border:1px solid var(--line);border-radius:9px;padding:10px 12px}.ip-detail dt{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.ip-detail dd{margin:0;font-weight:600;color:var(--ink);font-size:15px}.hint{color:var(--muted);font-size:13px;margin:14px 0 0;display:flex;align-items:center;gap:6px}.hint kbd{background:hsla(0,0%,50%,.14);border:1px solid var(--line);border-radius:4px;padding:1px 6px;font-size:12px;font-family:inherit}@media (prefers-reduced-motion:reduce){.output{animation:none}button{transition:none}}@media (max-width:480px){h1{font-size:26px}.output{font-size:20px}}