:root{color-scheme:dark;--bg:#0c1220;--panel:#172135;--muted:#9facbd;--text:#edf4ff;--line:#2a3952;--brand:#4ba6fd}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.85 Tahoma,"Arial",sans-serif}a{color:#8cc7ff;text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1120px;width:calc(100% - 36px);margin:auto}.topbar{background:#10192a;border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}.brand{font-size:1.3rem;font-weight:bold;color:var(--text)}nav{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:.9rem}.inline{display:inline}.linkbtn{background:none;border:0;color:#8cc7ff;cursor:pointer;font:inherit}.content{min-height:75vh;padding:32px 0 80px}.hero{text-align:center;padding:45px 0 35px}.eyebrow{letter-spacing:4px;color:var(--brand)}h1{font-size:clamp(1.6rem,4vw,2.6rem);margin:0 0 15px}h2{font-size:1.25rem;margin:0 0 12px}h3{font-size:1.05rem}.hero p,.sub{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:25px}.card.featured{border-color:#3f8ed1;background:#162844}.card.muted{opacity:.68}.card-icon{font-size:32px;color:var(--brand)}.pill{padding:3px 10px;border-radius:20px;font-size:.75rem;background:#293c58;color:#c5dfff}.button{background:var(--brand);color:#071528;padding:10px 18px;border:0;border-radius:10px;font:inherit;font-weight:bold;cursor:pointer;display:inline-block}.button:hover{text-decoration:none;background:#87c6ff}.formpanel{max-width:520px;margin:20px auto;border:1px solid var(--line);border-radius:14px;padding:26px;background:var(--panel)}.formpanel form p{display:flex;flex-direction:column;gap:5px;margin-bottom:15px}label{font-size:.9rem}input,select,textarea{font:inherit;width:100%;border:1px solid #41516b;background:#101b2d;border-radius:8px;color:var(--text);padding:10px}textarea{min-height:105px}input:focus,select:focus,textarea:focus{outline:2px solid #479be8}ul.errorlist{padding:8px;background:#512c3a;border-radius:8px;color:#ffd6e1}ul.errorlist li{list-style:none}.flash{padding:12px 16px;background:#254265;border-radius:8px;margin:12px 0}.flash.error{background:#63333f}.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.split-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:25px}.session{margin:20px 0}.session h3{margin-top:22px}table{width:100%;border-collapse:collapse;text-align:right}th,td{padding:10px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-size:.85rem}.table-scroll{overflow:auto}small{display:block;color:var(--muted)}.footer{text-align:center;color:var(--muted);border-top:1px solid var(--line);padding:22px}.code-secret{padding:15px;background:#101b2d;border:1px dashed var(--brand);overflow-wrap:anywhere;direction:ltr;text-align:center}.publish{margin-top:20px}.notice{color:#ffda8a}.actions{margin:16px 0}@media(max-width:760px){.cards,.dashboard-grid{grid-template-columns:1fr}.split-heading{align-items:flex-start;flex-direction:column}.nav{flex-direction:column}table{font-size:.78rem}th,td{padding:7px}}
.exercise-results{display:grid;gap:4px;margin-top:5px}.search-option{display:block;text-align:right;font:inherit;background:#203854;color:#fff;border:1px solid #3e607d;border-radius:6px;padding:8px;cursor:pointer}.search-option:hover{background:#345a81}