:root{--primary:#2457d6;--dark:#14213d;--bg:#f4f7fb;--muted:#64748b;--green:#079669;--red:#dc3545;--border:#dfe5ef}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:#172033}a{text-decoration:none;color:inherit}.login,.setup{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#14213d,#2457d6)}.login-card,.setup-card{background:#fff;border-radius:18px;padding:30px;width:min(960px,94vw);box-shadow:0 25px 70px #0004}.login-card{width:min(430px,94vw)}h1,h2,h3{margin-top:0}label{display:block;font-size:13px;font-weight:700;color:#40506a}input,select,textarea{display:block;width:100%;padding:11px 12px;margin:6px 0 14px;border:1px solid var(--border);border-radius:8px;background:#fff;font:inherit}textarea{min-height:80px}.btn{display:inline-block;border:0;border-radius:8px;background:var(--primary);color:#fff;padding:10px 15px;font-weight:700;cursor:pointer}.btn.red{background:var(--red)}.btn.green{background:var(--green)}.btn.gray{background:#56657b}.btn.small{font-size:12px;padding:7px 10px}.layout{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.sidebar{background:var(--dark);color:#dfe8ff;padding:18px 14px;position:sticky;top:0;height:100vh;overflow:auto}.brand{padding:8px 10px 20px;font-size:18px;font-weight:800}.sidebar a{display:block;padding:10px 12px;border-radius:8px;margin:2px 0;font-size:14px}.sidebar a:hover,.sidebar a.active{background:#ffffff18;color:#fff}.main{min-width:0}.topbar{height:64px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:5}.content{padding:24px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:22px}.card,.panel{background:#fff;border:1px solid #e8edf5;border-radius:12px;padding:18px;box-shadow:0 4px 16px #1a376008}.card span{color:var(--muted);font-size:13px}.card strong{display:block;font-size:27px;margin-top:7px}.panel{margin-bottom:18px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:15px}.panel-head h2{margin:0}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 16px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 14px}.span2{grid-column:span 2}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:#fff}th,td{text-align:left;padding:10px;border-bottom:1px solid #e7ecf3;font-size:13px;white-space:nowrap}th{color:#526178;background:#f8faff}.actions{display:flex;gap:6px}.alert{padding:12px 14px;border-radius:8px;margin-bottom:15px}.success{background:#ddf8ed;color:#076c4c}.danger{background:#ffe3e5;color:#9d1521}.warning{background:#fff4d2;color:#7b5a00}.badge{display:inline-block;padding:4px 8px;border-radius:99px;background:#e8eefc;color:#234ca7;font-size:11px;font-weight:800}.search{display:flex;gap:8px}.search input{margin:0;min-width:230px}.muted{color:var(--muted)}.setup-card{margin:35px auto}.setup-card h3{border-bottom:1px solid var(--border);padding-bottom:8px;margin-top:20px}.print-sheet{background:#fff;color:#111;max-width:210mm;min-height:270mm;margin:20px auto;padding:12mm;border:1px solid #ddd;position:relative}.print-head{text-align:center;border-bottom:3px double #222;padding-bottom:10px;margin-bottom:16px}.print-head h1{font-size:26px;margin:0}.student-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 30px;margin:16px 0}.signature-row{display:flex;justify-content:space-between;margin-top:70px}.id-grid{display:grid;grid-template-columns:repeat(2,85.6mm);gap:10mm;justify-content:center}.id-card{width:85.6mm;height:54mm;border:2px solid #173f9c;border-radius:8px;background:#fff;overflow:hidden;position:relative}.id-top{background:#173f9c;color:#fff;text-align:center;padding:7px;font-weight:800}.id-body{padding:10px;display:grid;grid-template-columns:70px 1fr;gap:10px}.avatar{width:62px;height:72px;border:1px solid #aaa;display:grid;place-items:center;font-size:11px;color:#777}.watermark{position:absolute;inset:45% 0 auto;text-align:center;opacity:.05;font-size:50px;font-weight:900;transform:rotate(-25deg)}@media(max-width:900px){.layout{grid-template-columns:1fr}.sidebar{height:auto;position:relative}.sidebar nav{display:grid;grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:repeat(2,1fr)}.topbar{position:relative}.grid3{grid-template-columns:1fr}}@media(max-width:560px){.cards,.grid{grid-template-columns:1fr}.span2{grid-column:auto}.content{padding:12px}.topbar{padding:0 12px}.search{display:block}.sidebar nav{grid-template-columns:1fr}}@media print{body{background:#fff}.no-print,.sidebar,.topbar{display:none!important}.layout{display:block}.content{padding:0}.print-sheet{border:0;margin:0;max-width:none;min-height:auto;page-break-after:always}.panel{border:0;box-shadow:none}.id-grid{gap:7mm}button{display:none!important}@page{size:A4;margin:8mm}}