:root{--ink:#26354f;--muted:#566580;--blue:#234dc0;--lavender:#e8e5fc;--line:#d8dfee;--paper:#fff;--bg:#f1f5fc;--mint:#ddf3ec;--danger:#a12438;--radius:18px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}button,input,textarea,select,a{outline-offset:4px}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #785bdd}button{border:1px solid var(--line);border-radius:9px;background:white;color:var(--ink);padding:10px 16px}button:hover{border-color:var(--blue)}.skip{position:fixed;top:-60px;left:12px;background:white;padding:8px;z-index:10}.skip:focus{top:10px}.rail{width:264px;padding:34px 22px;position:fixed;inset:0 auto 0 0;background:#fdfdff;border-right:1px solid var(--line);display:flex;flex-direction:column}.brand{display:flex;gap:13px;align-items:center;font-weight:750;font-size:23px;line-height:1.08;letter-spacing:-.5px}.brand small{font-size:14px;font-weight:500;letter-spacing:0}.brand-symbol{display:grid;place-items:center;background:var(--blue);color:white;border-radius:17px 17px 17px 4px;width:49px;height:49px;font-family:Georgia,serif;font-size:35px}.rail-caption{font-size:14px;color:var(--muted);margin:32px 12px 24px}.rail nav{display:grid;gap:8px}.rail nav button{text-align:left;border-color:transparent;background:transparent;font-size:14px;display:flex;align-items:center;gap:11px;padding:13px 10px}.rail nav button span{font-size:11px;font-variant-numeric:tabular-nums;color:var(--muted)}.rail nav button[aria-current=page]{background:var(--lavender);color:#303e81;font-weight:650}.rail-bottom{margin-top:auto;padding:28px 10px 0;font-size:12px;color:var(--muted)}.text-button{padding:4px 0;border:0;background:transparent;color:var(--blue);text-decoration:underline;text-underline-offset:4px}.workspace{margin-left:264px}.topbar{min-height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:16px 44px;gap:20px;font-size:13px}.demo-label{font-size:10px;letter-spacing:1px;font-weight:700;color:#55588a}main{max-width:1200px;margin:auto;padding:44px 44px 64px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--blue);margin:0 0 16px}h1{font:700 clamp(29px,3.3vw,47px)/1.12 "Trebuchet MS",sans-serif;letter-spacing:-1.7px;margin:0 0 18px;max-width:820px}h2{font-size:22px;line-height:1.3;letter-spacing:-.5px;margin:0 0 16px}h3{font-size:16px;margin:0 0 12px}p{margin:0 0 15px}.lead{color:var(--muted);max-width:700px;margin-bottom:28px}.examples{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 22px;font-size:12px}.examples>span{margin-right:5px;color:var(--muted)}.examples button{padding:7px 11px;border-radius:30px;font-size:12px;background:transparent}.source-grid,.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.paper{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:27px;min-width:0;box-shadow:0 3px 0 #dce4f333}.source-paper{background:linear-gradient(white 31px,#eaf0f8 32px);background-size:100% 32px}.source-paper textarea{background:#ffffffed}.paper-label{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:650;margin-bottom:24px}.dot{width:8px;height:8px;border-radius:50%;background:var(--blue)}.lilac{background:#8864c2}label{display:block;font-size:12px;font-weight:650;margin:0 0 15px}input,textarea,select{width:100%;display:block;border:1px solid #b8c5da;border-radius:9px;background:#fff;padding:11px 12px;color:var(--ink);font-size:14px;margin-top:7px;min-width:0}textarea{resize:vertical;line-height:1.65}input::placeholder,textarea::placeholder{color:#66738a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.hint{font-size:12px;line-height:1.6;color:var(--muted);margin:12px 0 0}.action-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:25px 0 0}.action-row p{font-size:12px;color:var(--muted);margin:0}.primary{background:var(--blue);color:#fff;border-color:var(--blue);font-size:14px;font-weight:650;padding:13px 19px}.primary span{margin-left:20px}.secondary{background:var(--lavender);border-color:var(--lavender);color:#36357c}.chip{display:inline-block;background:var(--mint);color:#205c4b;border-radius:30px;padding:5px 12px;font-size:12px;font-weight:650}.warn{background:#fff4d9;color:#72520c}.card-top{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:26px}.subject{font-size:34px;margin:0;font-family:"Trebuchet MS",sans-serif}.deadline{display:flex;justify-content:space-between;padding:16px 0;border-block:1px solid var(--line);margin:22px 0;gap:12px}.deadline span{color:var(--muted);font-size:13px}.steps{padding-left:26px;margin:24px 0}.steps li{padding:4px 0 9px 5px}.steps li::marker{color:var(--blue);font-weight:700}.material{background:var(--bg);border-radius:10px;padding:18px;font-size:14px}.preserve{white-space:pre-wrap;overflow-wrap:anywhere}.source-box{background:#f8f9fe;padding:16px;border-left:3px solid #9283d7;font-size:14px}details{margin-top:22px;font-size:13px}summary{cursor:pointer;color:var(--blue);padding:6px 0}.empty{padding:40px;background:white;border:1px dashed #acbcd6;border-radius:var(--radius);max-width:700px}.errors{background:#ffedf0;color:var(--danger);padding:18px;border-radius:12px;margin:20px 0;font-size:14px}.errors ul{margin:0;padding-left:22px}.check{display:flex;align-items:flex-start;gap:10px;font-size:14px;font-weight:500;margin:24px 0}.check input{width:18px;min-width:18px;margin:3px 0}.stack{display:grid;gap:20px}.question{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.question:first-child{margin-top:0}.meta{font-size:12px;color:var(--muted)}.answer{background:var(--mint);padding:14px;border-radius:9px;margin-top:15px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:25px}.stat{padding:24px;background:white;border:1px solid var(--line);border-radius:15px}.stat strong{display:block;font-size:32px;color:var(--blue)}.stat span{font-size:12px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line)}.audit{font-size:12px;padding-left:20px;color:var(--muted)}#notice:not(:empty){background:var(--mint);padding:12px 18px;border-radius:10px;margin-bottom:22px;font-size:14px}footer{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding:20px 44px}.screen[hidden]{display:none}.full{grid-column:1/-1}
@media(max-width:1050px){.rail{width:230px;padding-inline:14px}.workspace{margin-left:230px}main{padding:32px 25px}.topbar{padding:16px 25px}.source-grid,.two-col{grid-template-columns:1fr}.source-paper textarea{min-height:180px}}
@media(max-width:760px){.rail{position:static;width:auto;padding:20px 18px 12px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:21px}.brand-symbol{width:41px;height:41px;font-size:30px}.rail-caption{display:none}.rail nav{margin-top:20px;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px}.rail nav button{display:flex;flex-direction:column;gap:5px;text-align:center;padding:9px 3px;font-size:10px;line-height:1.3;overflow-wrap:anywhere;min-height:69px}.rail nav button span{font-size:12px}.rail-bottom{padding:10px 0 0;display:flex;justify-content:space-between;gap:12px;align-items:start}.rail-bottom p{font-size:10px;max-width:230px;margin:0}.rail-bottom .text-button{font-size:10px;max-width:100px}.workspace{margin:0}.topbar{min-height:58px;padding:12px 18px;gap:12px}.demo-label{font-size:8px;letter-spacing:.4px;max-width:130px;text-align:right}main{padding:26px 18px 42px}h1{font-size:32px;letter-spacing:-1px}.lead{font-size:14px;margin-bottom:22px}.examples{gap:7px}.examples>span{width:100%}.examples button{font-size:11px}.paper{padding:20px}.action-row{flex-direction:column;align-items:stretch}.action-row button{width:100%}.stats{gap:8px}.stat{padding:15px 10px}.stat strong{font-size:25px}.stat span{font-size:10px;line-height:1.4;display:block}.card-top{align-items:start}.subject{font-size:29px}.empty{padding:25px}.deadline{flex-direction:column;gap:5px}footer{padding:20px 18px}.form-row{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}