:root{color-scheme:dark;--bg:#0c1420;--panel:#111f30;--text:#f1f2f5;--muted:#a9b7cb;--blue:#78aaff;--line:#2c3c51}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,Segoe UI,sans-serif}header,.notice,main{max-width:980px;margin:auto}header{display:flex;align-items:center;justify-content:space-between;padding:24px}.brand{font-family:Georgia,serif;font-size:26px;letter-spacing:3px;color:var(--text)}.brand span{font-size:19px;color:var(--muted)}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.notice{padding:0 24px;color:var(--muted);font-size:12px}main{padding:32px 24px 115px}h1,h2{font-family:Georgia,serif;font-weight:400;line-height:1.15}h1{font-size:clamp(36px,6vw,60px);max-width:700px;margin:12px 0 20px}h2{font-size:30px;margin:30px 0 16px}h3{font-size:19px}.lede{font-size:20px;color:var(--muted);max-width:650px}.feature{position:relative;overflow:hidden;background:linear-gradient(120deg,#11233b,#101b2a);border:1px solid #365378;border-radius:12px;padding:32px;margin:30px 0}.feature h2{margin:10px 0;font-size:35px}.feature p{max-width:520px}.art{position:absolute;right:4%;top:35px;width:130px;height:130px;border:1px solid #9bb5d8;transform:rotate(16deg);opacity:.2;pointer-events:none}.art:after{content:'';display:block;background:var(--blue);width:100px;height:100px;transform:translate(-24px,30px)}button,.button{display:inline-block;background:var(--blue);color:#081322;border:1px solid transparent;padding:13px 20px;border-radius:7px;font:600 15px/1.4 system-ui;cursor:pointer;margin:6px 8px 6px 0}button.secondary,.button.secondary{color:var(--text);background:transparent;border-color:var(--line)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #fff;outline-offset:3px}.row{display:block;border-top:1px solid var(--line);padding:20px 0;color:var(--text)}.row strong{font-size:19px}.row small{display:block;color:var(--muted);margin-top:4px}.row span{float:right;color:var(--blue)}nav{position:fixed;bottom:0;left:0;right:0;border-top:1px solid var(--line);background:#0c1420f5;display:flex;justify-content:center;gap:65px;padding:18px 16px;z-index:2}nav a{font-size:14px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:24px;margin:22px 0}.muted{color:var(--muted)}progress{width:100%;max-width:440px;height:9px;accent-color:var(--blue)}label{display:block;margin:15px 0 6px}select,input[type=text],input[type=email],textarea{width:100%;padding:13px;background:#0a121e;color:var(--text);border:1px solid #52647d;border-radius:5px;font:inherit}fieldset{border:1px solid var(--line);margin:22px 0;padding:20px;border-radius:8px}fieldset label{padding:9px;background:#111f30;border-radius:5px;cursor:pointer}legend{padding:0 6px;max-width:100%}.feedback{border-left:3px solid var(--blue);padding:12px 18px;background:#15253b}.success{border-color:#7ccea7}video{width:100%;border-radius:8px;background:#000}details{border-top:1px solid var(--line);padding:16px 0}summary{cursor:pointer;color:var(--blue)}.flow{border-left:2px solid var(--blue);padding-left:20px;margin:20px 0}.tag{font-size:12px;color:var(--muted)}.empty{padding:35px 0}.chart{width:100%;height:190px}.toolgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.toolgrid .panel{margin:0}.back{display:block;margin-bottom:24px}.error{color:#ffc1bd}#live-status{min-height:24px}@media(max-width:600px){header{padding:20px}.brand{font-size:21px}.brand span{font-size:15px}header>a:last-child{font-size:12px}main{padding:25px 20px 105px}.notice{padding:0 20px}.feature{padding:23px}.feature h2{font-size:30px}.panel{padding:19px}.toolgrid{grid-template-columns:1fr}h1{font-size:40px}nav{gap:55px}.lede{font-size:18px}}
button:disabled{opacity:.5;cursor:not-allowed}
label input[type=checkbox]{margin-right:8px}