:root{color-scheme:light;--bg:#f5f6fa;--card:#fff;--text:#17223b;--muted:#67738a;--line:#e2e6ef;--accent:#4338ca;--soft:#eeedff;--success:#047857;--warning:#a16207;--danger:#be123c}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,sans-serif}body.dark{color-scheme:dark;--bg:#101526;--card:#1a2135;--text:#edf0fa;--muted:#a4afc5;--line:#303a52;--accent:#a5a0ff;--soft:#2d2850;--success:#6ee7b7;--warning:#fcd34d;--danger:#fda4af}button,input,select{font:inherit}button{cursor:pointer;min-height:44px;padding:8px 15px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--text);font-size:14px;font-weight:600}button:disabled{opacity:.55;cursor:wait}button:hover{border-color:var(--accent)}input,select{width:100%;min-height:48px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--text)}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}label{display:block;font-size:13px;font-weight:650;margin:0 0 7px}.topbar{background:var(--card);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:18px max(20px,calc((100vw - 1160px)/2));gap:12px}.brand{display:flex;gap:12px;align-items:center;color:var(--text);text-decoration:none;font-weight:750}.brand small{display:block;color:var(--muted);font-size:11px;font-weight:500}.brand-icon{display:grid;place-items:center;background:#4338ca;color:#fff;border-radius:13px;width:44px;height:44px;font-size:24px}.actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}main{max-width:1160px;margin:auto;padding:32px 20px}h1{font-size:32px;line-height:1.2;letter-spacing:-1px;margin:12px 0}h2{font-size:21px;margin:24px 0 16px}h3{font-size:17px;line-height:1.3;margin:0}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:800;color:var(--accent)}.muted,.hint{color:var(--muted)}.hint{font-size:12px;margin:6px 0}.login-card{max-width:480px;margin:24px auto 48px;padding:36px;background:var(--card);border:1px solid var(--line);border-radius:24px;box-shadow:0 18px 50px #17223b0b}.login-card form{margin-top:28px}.login-card form>input,.password-field{margin-bottom:20px}.password-field{display:flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}.password-field input{border:none;min-width:0}.password-field button{border:0;font-size:12px}.check{display:flex;gap:10px;align-items:center;font-weight:500}.check input{width:18px;min-height:18px;accent-color:var(--accent)}.primary{background:#4338ca;border-color:#4338ca;color:#fff;width:100%;margin-top:18px}.secondary{width:100%;margin-top:12px;color:var(--accent)}.dashboard-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:8px 0 28px}.filters{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:16px}.filters>div{flex:1;min-width:170px}.filters .search{flex:2}.access-panel{display:flex;gap:16px;justify-content:space-between;align-items:center;padding:16px 20px;border:1px solid var(--line);border-radius:16px;background:var(--card);margin-bottom:24px}.access-panel p{max-width:560px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}.stat strong{display:block;font-size:28px;line-height:1.4}.stat span{font-size:12px;color:var(--muted)}nav{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0 20px}nav button.active{background:var(--accent);color:var(--card);border-color:var(--accent)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}.subject{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px}.subject-head{display:flex;justify-content:space-between;align-items:start;gap:12px;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:8px}.average{font-size:13px;font-weight:750;text-align:right;white-space:nowrap}.average small{display:block;font-size:10px;font-weight:500;color:var(--muted)}.good{color:var(--success)}.medium{color:var(--warning)}.low{color:var(--danger)}.grade-row{display:flex;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}.grade-row:last-child{border:0}.grade-row p{margin:3px 0;font-size:13px;overflow-wrap:anywhere}.grade-row small{font-size:10px;letter-spacing:.5px;color:var(--muted)}.grade-value{font-size:18px;font-weight:750;white-space:nowrap}.grade-value small{font-size:11px;font-weight:400}.notice,#message{padding:16px 20px;background:var(--soft);border:1px solid var(--line);border-radius:12px;margin:20px 0;font-size:14px;overflow-wrap:anywhere}.empty{padding:50px 20px;text-align:center;color:var(--muted)}.average-note{margin-top:30px}footer{text-align:center;font-size:11px;color:var(--muted);padding:24px 20px 32px}@media(max-width:600px){main{padding:22px 16px}.topbar{padding:14px 16px}.login-card{padding:26px;margin:8px auto}h1{font-size:28px}.dashboard-heading,.access-panel{align-items:start;flex-direction:column}.stats{gap:8px}.stat{padding:12px}.stat strong{font-size:22px}.grid{grid-template-columns:1fr}.subject{padding:18px}.filters>div{min-width:130px}.filters .search{flex-basis:100%}}@media print{.topbar,.filters,.actions,.access-panel,nav,#message,.notice,footer{display:none!important}body{--bg:#fff;--card:#fff;--text:#000;--muted:#555;--line:#ccc}.grid{display:block}.subject{break-inside:avoid;margin-bottom:16px}.dashboard-heading{margin:0}main{padding:0}}