:root{--ink:#15354f;--muted:#5e7485;--line:#dce5eb;--soft:#f4f8fa;--danger:#a23a3a;--plus:#26724d;--minus:#9a4141}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#f7fafc;overflow-x:hidden}button,input{font:inherit}.shell{max-width:1080px;margin:0 auto;padding:28px 18px 56px}.top{display:flex;align-items:center;gap:16px;margin-bottom:26px;min-width:0}.top>div{min-width:0}.logo{width:74px;height:74px;object-fit:contain;flex:0 0 auto}.school{font-weight:800;font-size:18px;line-height:1.25}.sub{color:var(--muted);font-size:14px;line-height:1.45}.card{background:white;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 8px 28px rgba(25,55,75,.06)}.login{max-width:520px;margin:70px auto}.login h1,.dashboard h1{margin:6px 0 8px;font-size:32px;line-height:1.15}.field{display:flex;gap:10px;margin-top:22px}.field input{flex:1;min-width:0;border:1px solid #bfcdd7;border-radius:10px;padding:13px 14px;font-size:18px}.btn{min-height:44px;border:0;border-radius:10px;padding:12px 16px;font-weight:750;cursor:pointer;background:var(--ink);color:white}.btn.secondary{background:white;color:var(--ink);border:1px solid #bfcdd7}.btn.danger{background:#fff;color:var(--danger);border:1px solid #e3bcbc}.err{color:var(--danger);margin-top:12px;min-height:1.2em}.hidden{display:none!important}.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:18px;min-width:0}.toolbar>div{min-width:0}.updated{display:inline-block;margin-top:8px;padding:7px 10px;background:#eef5f8;border-radius:8px;color:#435f72;font-size:13px}.period{margin:28px 0 12px}.period h2{font-size:18px;margin:0 0 4px}.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:24px 0}.metric{padding:18px;background:var(--soft);border-radius:14px;min-width:0}.metric span{display:block;color:var(--muted);font-size:13px;font-weight:700}.metric strong{display:block;font-size:30px;margin-top:6px;overflow-wrap:anywhere}.section-title{font-size:20px;margin:28px 0 12px}.chart-wrap{border:1px solid var(--line);border-radius:14px;padding:10px;background:#fbfdfe;overflow:hidden}.chart{display:block;width:100%;height:auto;min-height:220px;max-height:300px}.chart text{font-family:inherit;fill:#587082;font-size:12px}.table-wrap{overflow-x:auto}.data{width:100%;border-collapse:collapse}.data th,.data td{padding:11px 8px;border-bottom:1px solid #e5edf2;text-align:left;vertical-align:top}.data th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:#607788}.data td:nth-child(2),.data td:last-child{font-weight:750}.plus{color:var(--plus)}.minus{color:var(--minus)}.footer{margin-top:28px;color:#718492;font-size:12px;line-height:1.5}.admin-link{border:0;background:none;color:#627a8c;text-decoration:underline;cursor:pointer;margin-top:20px;padding:6px}.admin{max-width:1080px;margin:20px auto}.admin-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}.block{border:1px solid var(--line);border-radius:14px;padding:18px;min-width:0;background:#fff}.block.full{grid-column:1/-1}.block h2{margin-top:0}.upload{border:2px dashed #b7c9d4;border-radius:12px;padding:18px;background:#f9fcfd;min-width:0}.upload input[type=file]{max-width:100%}.teacher-row{display:grid;grid-template-columns:90px minmax(170px,1fr) 90px 150px auto;gap:8px;align-items:end;padding:10px 0;border-bottom:1px solid #e6edf1;min-width:0}.teacher-row label{display:block;min-width:0}.teacher-row label>span{display:none;font-size:12px;color:var(--muted);margin:0 0 5px}.teacher-row input{width:100%;min-width:0;padding:9px;border:1px solid #c8d4dc;border-radius:8px}.pill{font-size:12px;padding:6px 7px;background:#eef4f7;border-radius:999px;text-align:center;align-self:center;white-space:nowrap}.actions{display:flex;gap:8px;flex-wrap:wrap}.notice{padding:10px 12px;border-radius:10px;background:#eef6f0;color:#2c6446;margin-top:10px}.muted{color:var(--muted)}
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