body.admin{background:#f6f5f2}.admin-header{padding:0 45px;height:90px;background:#f0edf3}.admin main{max-width:1400px;padding:39px 45px;margin:auto}.admin-gate{background:var(--paper);border:1px solid var(--line);padding:48px 30px;border-radius:14px;text-align:center}.admin-gate h2{font-weight:400;font-size:23px}.admin-gate>p{color:var(--muted);line-height:1.8}.admin-gate .primary{display:inline-block;margin:17px 0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:25px}.stat{background:#eeebf2;padding:22px 24px;border-radius:12px}.stat span{font-size:11px;color:var(--muted)}.stat strong{font:35px Georgia,serif;display:block;margin-top:9px;color:var(--purple)}.admin-columns{display:grid;grid-template-columns:290px minmax(0,1fr);gap:23px;align-items:start}.panel{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:24px}.panel-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.panel h2{font-size:17px;font-weight:500;margin:0}.student-row{width:100%;text-align:left;display:flex;gap:12px;padding:17px 10px;border-bottom:1px solid var(--line);align-items:center}.student-row.selected{background:var(--lav);border-radius:8px}.student-row .avatar{flex-shrink:0}.student-row strong{font-size:13px;font-weight:500}.student-row small{display:block;font-size:10px;color:var(--muted);margin-top:7px}.student-row .disabled{font-size:10px;color:#b16e6b;margin-left:auto}.empty-state{text-align:center;padding:110px 15px;color:#a193ac;font-size:45px}.empty-state h2{color:var(--dark);font-size:18px;margin:25px 0 12px}.empty-state p{font-size:12px;line-height:1.8}.detail-title{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}.detail-title h2{font-size:21px}.detail-title p{color:var(--muted);font-size:11px}.detail-summary{display:flex;flex-wrap:wrap;gap:16px;margin:25px 0;color:var(--purple);font-size:12px}.tabs{display:flex;gap:20px;border-bottom:1px solid var(--line);margin:22px 0}.tabs button{font-size:12px;padding:12px 0;border-bottom:2px solid transparent}.tabs button.on{color:var(--purple);border-bottom-color:var(--purple)}.table-wrap{overflow:auto;max-height:620px}table{width:100%;border-collapse:collapse;font-size:11px;text-align:left;white-space:nowrap}th{font-weight:400;color:var(--muted);background:#f8f6fa;position:sticky;top:0}td,th{padding:14px 10px;border-bottom:1px solid var(--line)}td strong{font:18px Georgia,serif;display:block;margin-bottom:5px}td small{color:var(--muted)}.score-badge{display:inline-block;border-radius:5px;padding:5px 8px;background:#eee5f3;color:#82708f}.score-badge.high{background:#e5eee7;color:#648271}.rules{margin-top:25px}.rules h2{margin:12px 0}.rules p{font-size:11px;color:var(--muted);line-height:2}.rule-chips{display:flex;flex-wrap:wrap;gap:9px;margin:15px 0}.rule-chips span{font-size:11px;border-radius:6px;padding:9px 13px;background:var(--lav);color:var(--purple)}.admin-form label{display:block;margin:17px 0;font-size:12px}.admin-form input{display:block;border:1px solid var(--line);padding:12px;border-radius:8px;width:100%;margin-top:8px}.form-message{font-size:12px;color:#a15e5c;min-height:20px;line-height:1.8}.admin .actions{justify-content:flex-start}.admin [hidden]{display:none!important}@media(max-width:850px){.admin-columns{grid-template-columns:1fr}.students-panel #studentsList{max-height:230px;overflow:auto}.stats{gap:10px}.stat{padding:17px}.detail-panel{padding:20px}.admin main{padding:28px 20px}.admin .intro h1{font-size:22px}.admin-header{padding:0 22px}}@media(max-width:550px){.admin .intro{display:block}.admin .intro .primary{margin-top:18px}.stats{grid-template-columns:1fr 1fr}.admin main{padding:25px 15px}.detail-title .actions{gap:5px}.detail-title .secondary{font-size:10px;padding:9px 12px}.admin .intro h1{font-size:20px}.admin .brand{font-size:17px}}
.textbook-panel{margin-bottom:25px}.textbook-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.textbook-card{border:1px solid var(--line);background:#f7f4fa;text-align:left;padding:17px;border-radius:9px}.textbook-card strong{display:block;font-size:13px;font-weight:500}.textbook-card span{display:block;font-size:10px;color:var(--muted);margin-top:10px;line-height:1.8}.textbook-card small{display:block;color:var(--purple);font-size:10px;margin-top:11px}.admin-form textarea{display:block;width:100%;border:1px solid var(--line);border-radius:8px;padding:12px;margin-top:9px;font:12px/1.8 monospace;resize:vertical}.import-sample{border:1px solid var(--line);border-radius:7px;padding:12px;margin:15px 0;font-size:12px;line-height:2}.import-sample strong{color:var(--purple);margin-right:10px}@media(max-width:800px){.textbook-grid{grid-template-columns:repeat(2,1fr)}}