:root{--bg:#f5f6fa;--card:#fff;--ink:#1f2933;--muted:#6b7684;--line:#dde1e7;--primary:#2f6fde;--success:#2e9d5b;--danger:#d64545;--warn:#c98a12;color:var(--ink);background:var(--bg);font-family:system-ui,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.45}*{box-sizing:border-box}body{margin:0}h1{margin:0;font-size:1.6rem}h2{margin:0 0 .75rem;font-size:1.15rem}a{color:var(--primary)}.muted{color:var(--muted)}.layout{grid-template-columns:230px 1fr;min-height:100vh;display:grid}.sidebar{color:#e8edf4;background:#1d2b3f;flex-direction:column;gap:1.5rem;padding:1.25rem 1rem;display:flex}.brand{flex-direction:column;font-size:1.4rem;font-weight:700;display:flex}.brand small{opacity:.7;font-size:.8rem;font-weight:400}.sidebar nav{flex-direction:column;gap:.25rem;display:flex}.sidebar nav a{color:inherit;border-radius:8px;padding:.55rem .75rem;text-decoration:none}.sidebar nav a:hover{background:#ffffff14}.sidebar nav a.active{background:var(--primary);color:#fff}.me{flex-direction:column;gap:.15rem;margin-top:auto;display:flex}.me small{opacity:.7}.me .link{color:#9cc2ff;text-align:left;padding:0}.content{width:100%;max-width:1200px;padding:1.5rem 2rem 4rem}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;display:flex}.actions{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:1rem 0;padding:1.1rem 1.25rem}.center{place-items:center;min-height:100vh;display:grid}.login{flex-direction:column;gap:.75rem;width:min(380px,92vw);display:flex}.row{flex-wrap:wrap;align-items:flex-end;gap:1rem;display:flex}.row>.field{flex:180px}.field{flex-direction:column;gap:.3rem;margin-bottom:.75rem;display:flex}.field>span{font-size:.9rem;font-weight:600}input,select,textarea,button,.button{font:inherit;border:1px solid var(--line);color:inherit;background:#fff;border-radius:8px;padding:.5rem .7rem}textarea{resize:vertical}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}button,.button{cursor:pointer;text-decoration:none;display:inline-block}button:hover,.button:hover{background:#f0f3f8}button:disabled{opacity:.6;cursor:default}.primary{background:var(--primary);border-color:var(--primary);color:#fff}.primary:hover{background:#255bb8}.success{background:var(--success);border-color:var(--success);color:#fff}.success:hover{background:#26804a}.danger{color:var(--danger)}button.danger:not(.link){border-color:var(--danger)}.link{color:var(--primary);background:0 0;border:none;padding:0}.link:hover{background:0 0;text-decoration:underline}fieldset{border:1px dashed var(--line);border-radius:8px;margin:0 0 .75rem;padding:.5rem .75rem}legend{font-size:.9rem;font-weight:600}.option-row{align-items:center;gap:.5rem;margin:.35rem 0;display:flex}.option-row input:not([type=radio]){flex:1}.table{border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:12px;width:100%;overflow:hidden}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);padding:.6rem .8rem}.table th{color:var(--muted);background:#f0f2f6;font-size:.85rem}.table tr:last-child td{border-bottom:none}.stats{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:.75rem;display:grid}.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1rem}.stat-value{font-size:1.7rem;font-weight:700}.stat-label{color:var(--muted);font-size:.85rem}.alert{border-radius:8px;margin:.5rem 0;padding:.6rem .8rem}.alert-error{color:#8f2424;background:#fdecec}.alert-info{color:#1d4a99;background:#e8f0fd}.alert-success{color:#1d6b3d;background:#e6f6ec}.badge{background:#eceff4;border-radius:999px;padding:.15rem .55rem;font-size:.8rem;display:inline-block}.badge-published{color:#1d6b3d;background:#e6f6ec}.badge-pending_review{color:#8a5d00;background:#fff4dc}.badge-archived{color:var(--muted);background:#eceff4}.dot{border-radius:50%;width:.6rem;height:.6rem;margin-right:.4rem;display:inline-block}.filters{flex-wrap:wrap;gap:.5rem;margin-bottom:1rem;display:flex}.pager{justify-content:center;align-items:center;gap:1rem;margin:1rem 0;display:flex}.activity{flex-direction:column;gap:.35rem;margin:0;padding-left:1.1rem;display:flex}.challenge-head{align-items:center;gap:.75rem;margin-bottom:.75rem;display:flex}.challenge-head .link{margin-left:auto}.sticky-actions{background:var(--bg);border-top:1px solid var(--line);margin-top:1rem;padding:.75rem 0;position:sticky;bottom:0}@media (width<=760px){.layout{grid-template-columns:1fr}.sidebar{flex-flow:wrap;align-items:center}.sidebar nav{flex-flow:wrap}.me{margin-top:0}.content{padding:1rem}}.check{align-items:center;gap:.35rem;margin-right:1rem;font-weight:500;display:inline-flex}