:root{--ink: #1c1b1a;--muted: #6b6a67;--line: #e6e4e0;--paper: #ffffff;--wash: #faf9f8;--accent: #c8102e;--radius: 10px}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--wash);font:400 15px/1.6 Inter,system-ui,-apple-system,sans-serif}.layout{display:grid;grid-template-columns:248px 1fr;min-height:100vh}.sidebar{display:flex;flex-direction:column;gap:24px;padding:20px 14px;background:var(--paper);border-right:1px solid var(--line)}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:inherit}.brand small,.who small{display:block;color:var(--muted);font-size:12px}.brand-mark,.avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--accent);color:#fff;font-size:13px;font-weight:600}.avatar{border-radius:50%}.sidebar ul{list-style:none;margin:0;padding:0;display:grid;gap:2px;flex:1}.sidebar a{display:block;padding:8px 10px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:14px}.sidebar a:hover{background:var(--wash)}.sidebar a.active{background:#fdeaee;color:var(--accent);font-weight:500}.who{display:flex;gap:10px;align-items:center;border-top:1px solid var(--line);padding-top:14px}main{padding:40px 48px;max-width:1100px}h1{font-size:30px;font-weight:500;margin:0 0 6px}h1 em{font-style:normal;color:var(--accent)}.lede{color:var(--muted);margin:0 0 28px}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}.card{display:grid;gap:4px;padding:18px 20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:inherit}.card:hover{border-color:#cfcdc8}.card span{color:var(--muted);font-size:13px}.notice{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.notice h2{margin:0 0 6px;font-size:18px;font-weight:500}.notice p{margin:0;color:var(--muted)}a:focus-visible,.card:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media (max-width: 820px){.layout{grid-template-columns:1fr}.sidebar{flex-direction:row;align-items:center;overflow-x:auto}main{padding:24px 20px}}.module h2{font-size:22px;font-weight:500;margin:0 0 6px}.module h3{font-size:15px;font-weight:600;margin:28px 0 10px}.module .lede{color:var(--muted);margin:0 0 20px;max-width:60ch}.muted{color:var(--muted)}.form{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px;padding:20px;max-width:720px}.form label{display:grid;gap:5px;font-size:13px;color:var(--muted)}.form label.wide{grid-column:1 / -1}.form input,.form textarea{font:inherit;color:var(--ink);padding:8px 10px;border:1px solid var(--line);border-radius:7px;background:var(--paper)}.form input:focus,.form textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}.form .actions{grid-column:1 / -1;display:flex;align-items:center;gap:12px}.form button{font:inherit;padding:8px 18px;border:0;border-radius:7px;background:var(--accent);color:#fff;cursor:pointer}.form button:disabled{background:#d8d5d1;cursor:not-allowed}.ok{color:#2f7d51;font-size:13px}.bad{color:var(--accent);font-size:13px}table{border-collapse:collapse;width:100%;max-width:900px;font-size:14px}th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}th{font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}