:root{font-family:Inter,Arial,sans-serif;color:#16202a;background:#f3f6f8}*{box-sizing:border-box}body{margin:0}.shell{max-width:1240px;margin:auto;padding:0 28px 50px}header{height:78px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:10px;align-items:center}.mark{width:40px;height:40px;border-radius:11px;background:#137a67;color:#fff;display:grid;place-items:center;font-weight:800}.brand b{font-size:17px}.brand small{display:block;color:#6d7983;font-size:11px;margin-top:2px}.header-note{font-size:12px;color:#6d7983}.intro{background:#123f3b;color:#fff;border-radius:22px;padding:42px 48px;display:flex;justify-content:space-between;gap:40px;background-image:radial-gradient(circle at 90% 0,#297b6d 0,transparent 35%)}.eyebrow{display:block;color:#4d9d8e;text-transform:uppercase;letter-spacing:.1em;font-size:11px;font-weight:800}.intro .eyebrow{color:#88d3c5}.intro h1{font-size:40px;line-height:1.05;margin:10px 0 16px}.intro p{max-width:650px;line-height:1.55;color:#d4e3e0}.intro-card{min-width:265px;background:#ffffff12;border:1px solid #ffffff2b;padding:22px;border-radius:15px}.intro-card ol{margin:14px 0 0;padding-left:20px;color:#d4e3e0;line-height:1.8;font-size:14px}nav{display:flex;align-items:center;gap:8px;margin:25px 0;border-bottom:1px solid #dce3e6;padding-bottom:14px}nav span{flex:1}button,select,input{font:inherit}button{border:0;cursor:pointer;border-radius:8px;padding:10px 14px;font-weight:700;color:#42525c;background:transparent}nav button.active{background:#dcefe9;color:#0c6656}nav label{font-size:12px;color:#6d7983}select{margin-left:6px;border:1px solid #ccd8da;border-radius:7px;padding:7px;background:#fff}.content{padding:14px 0}.section-head{display:flex;justify-content:space-between;align-items:end}.section-head h2,.content h2{margin:5px 0 18px;font-size:27px}.secondary{border:1px solid #cbd8db;background:#fff}.primary{background:#137a67;color:#fff}.notice{background:#e0f3ea;color:#156956;padding:13px 16px;border-radius:9px;margin:0 0 16px}.task-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.task-card,.workspace article,.explanation{background:#fff;border:1px solid #e1e8ea;border-radius:15px;padding:24px}.task-card.prototype{border-color:#7cbbaa;box-shadow:0 8px 24px #23766313}.tag{font-size:11px;color:#187765;font-weight:800;background:#e5f4ef;display:inline-block;padding:5px 8px;border-radius:20px}.task-card h3{margin:15px 0 8px;font-size:20px}.task-card p,.description,.workspace p{color:#64737c;line-height:1.5}.meta{display:flex;gap:18px;color:#71818a;font-size:13px;margin:18px 0}.actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}.workspace-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:16px}.workspace h3{margin:0 0 12px}.workspace h4{margin:24px 0 10px}.line{display:flex;justify-content:space-between;border-bottom:1px solid #edf0f1;padding:12px 0;font-size:14px}.line span{color:#657680;text-align:right}.assistant{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px solid #edf0f1}.assistant>span{background:#deeee9;color:#176e5e;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:800}.assistant small{display:block;color:#6d7983;margin-top:3px}.text-btn{margin-left:auto;color:#167563;padding:4px}.criterion{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid #edf0f1;font-size:14px}.criterion b{white-space:nowrap;color:#167563}.score{margin-top:16px;background:#143f3b;color:#fff;border-radius:10px;padding:15px;display:flex;justify-content:space-between}.adapter{margin-top:18px;background:#fff7e9;border-left:3px solid #dda941;padding:12px;color:#76603c;font-size:12px}.adapter b,.adapter span{display:block}.adapter span{margin-top:5px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.metrics div{background:#fff;border:1px solid #e1e8ea;border-radius:14px;padding:22px}.metrics b{font-size:32px;color:#147361;display:block}.metrics span{font-size:13px;color:#6d7983}.explanation{margin-top:16px}.modal-backdrop{position:fixed;inset:0;background:#10201c99;display:grid;place-items:center;padding:20px}.modal{background:#fff;width:min(480px,100%);padding:28px;border-radius:16px}.modal h2{margin:7px 0 10px}.modal p{color:#64737c;line-height:1.45}.modal label{display:block;font-size:13px;font-weight:700;margin-top:18px}.modal input{width:100%;margin-top:7px;padding:11px;border:1px solid #c9d6d8;border-radius:8px}@media (max-width:720px){.shell{padding:0 16px}.header-note{display:none}.intro{padding:28px;display:block}.intro h1{font-size:33px}.intro-card{margin-top:20px}.task-grid,.workspace-grid,.metrics{grid-template-columns:1fr}nav{overflow:auto}.line{display:block}.line span{display:block;text-align:left;margin-top:5px}}
