:root{--navy:#123f68;--maroon:#930000;--cream:#f7f8fb;--ink:#15283a;--line:#d9e0e7;--green:#14804a}*{box-sizing:border-box}body{margin:0;background:var(--cream);font-family:Arial,sans-serif;color:var(--ink)}.top{padding:24px 5%;background:#fff;display:flex;align-items:center;gap:18px}.seal{border:4px solid var(--maroon);border-radius:50%;color:var(--maroon);width:72px;height:72px;display:grid;place-items:center;font-weight:bold;font-size:11px;text-align:center}.top h1{color:var(--navy);font-size:30px;margin:0;letter-spacing:.5px}.top p{margin:6px 0 0;color:#4c6274}.bar{background:var(--maroon);color:#fff;padding:12px 5%;font-size:19px;font-weight:bold}.wrap{max-width:1220px;margin:28px auto;padding:0 18px}.card{background:#fff;border:1px solid var(--line);border-radius:7px;padding:28px;margin-bottom:20px;box-shadow:0 1px 3px #00000009}.login{max-width:500px;margin:50px auto}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}label{font-weight:bold;display:block;margin-bottom:7px}input,select{width:100%;border:1px solid #8d99a5;border-radius:5px;padding:12px;font-size:16px;background:#fff}input:focus,select:focus{outline:3px solid #bdd9f0;border-color:#326c9c}.subjects{grid-column:1/-1;background:#fbfcfd;border-left:4px solid var(--maroon);padding:15px}.checks{display:flex;flex-wrap:wrap;gap:13px}.checks label{font-weight:normal;margin:0;background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:5px}.checks input{width:auto;margin-right:6px}.btn{border:0;border-radius:5px;padding:12px 22px;background:var(--maroon);color:#fff;font-size:16px;cursor:pointer;text-decoration:none;display:inline-block}.btn:hover{background:#760000}.btn.secondary{background:var(--navy)}.btn.green{background:var(--green)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.notice{padding:12px 15px;border-radius:5px;margin-bottom:18px;background:#e6f6ec;color:#126437}.error{background:#fbe8e8;color:#9a1f1f}.nav{background:#fff;border-bottom:1px solid var(--line);padding:0 5%;display:flex;gap:0;flex-wrap:wrap}.nav a{padding:14px 18px;color:var(--navy);text-decoration:none;font-weight:bold}.nav a:hover,.nav a.active{background:#edf3f8}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:#fff}th{background:var(--navy);color:#fff;text-align:left}th,td{padding:11px;border:1px solid var(--line);white-space:nowrap}tr:nth-child(even){background:#f8fafc}.marks input{min-width:82px;padding:8px}.muted{color:#637384}.heading{display:flex;justify-content:space-between;align-items:center;gap:15px}.empty{padding:20px;text-align:center;color:#637384}.rank{display:inline-block;padding:4px 8px;background:#fff2cc;border:1px solid #e2b84d;color:#795600;border-radius:20px;font-size:12px;font-weight:bold;margin-left:6px}.percent{font-weight:bold;color:var(--green)}@media(max-width:700px){.top h1{font-size:21px}.grid,.grid-3{grid-template-columns:1fr}.card{padding:18px}.top{padding:16px}.seal{display:none}}
:root{--navy:#123f68;--maroon:#930000;--cream:#f7f8fb;--ink:#15283a;--line:#d9e0e7;--green:#14804a}*{box-sizing:border-box}body{margin:0;background:#f4f7fb;font-family:Arial,sans-serif;color:var(--ink)}.top{padding:24px 5%;background:#fff;display:flex;align-items:center;gap:18px}.seal{border:4px solid var(--maroon);border-radius:50%;color:var(--maroon);width:72px;height:72px;display:grid;place-items:center;font-weight:bold;font-size:11px;text-align:center}.top h1{color:var(--navy);font-size:30px;margin:0}.top p{margin:6px 0 0;color:#4c6274}.bar{background:var(--maroon);color:#fff;padding:12px 5%;font-size:19px;font-weight:bold}.sidebar{position:fixed;inset:0 auto 0 0;width:255px;background:linear-gradient(180deg,#0c3356,#10243a);padding:23px 14px;display:flex;flex-direction:column;z-index:2}.brand{color:#fff;display:flex;gap:11px;align-items:center;padding:0 8px 27px;border-bottom:1px solid #ffffff26}.brand-mark{width:38px;height:38px;border-radius:11px;background:#a90000;display:grid;place-items:center;font-weight:bold}.brand strong{display:block;font-size:15px}.brand small{color:#acc2d4;font-size:10px;letter-spacing:1.1px}.side-nav{padding-top:20px}.side-nav a,.side-logout{display:flex;gap:13px;align-items:center;padding:12px 14px;margin:4px 0;color:#d7e4ed;text-decoration:none;border-radius:8px;font-size:15px}.side-nav a:hover{background:#ffffff18;color:#fff}.side-logout{margin-top:auto;background:#ffffff10}.app-main{margin-left:255px;min-height:100vh}.app-header{background:#fff;padding:23px 38px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e4eaf0}.app-header p{margin:0 0 4px;color:#708094;font-size:13px}.app-header h1{margin:0;color:#123f68;font-size:25px}.admin-chip{background:#edf3f8;border-radius:22px;padding:8px 14px;color:#123f68;font-weight:bold}.admin-chip span{font-size:13px;margin-left:6px}.wrap{max-width:1280px;margin:28px auto;padding:0 28px}.card{background:#fff;border:1px solid #e3eaf1;border-radius:12px;padding:25px;margin-bottom:20px;box-shadow:0 4px 16px #1b3b5609}.login{max-width:500px;margin:50px auto}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}label{font-weight:bold;display:block;margin-bottom:7px}input,select{width:100%;border:1px solid #b7c4d1;border-radius:7px;padding:12px;font-size:16px;background:#fff}.subjects{grid-column:1/-1;background:#fbfcfd;border-left:4px solid var(--maroon);padding:15px}.checks{display:flex;flex-wrap:wrap;gap:13px}.checks label{font-weight:normal;margin:0;background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:5px}.checks input{width:auto;margin-right:6px}.btn{border:0;border-radius:7px;padding:11px 18px;background:var(--maroon);color:#fff;font-size:15px;cursor:pointer;text-decoration:none;display:inline-block}.btn.secondary{background:var(--navy)}.btn.green{background:var(--green)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.notice{padding:12px 15px;border-radius:7px;margin-bottom:18px;background:#e6f6ec;color:#126437}.error{background:#fbe8e8;color:#9a1f1f}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:#fff}th{background:#123f68;color:#fff;text-align:left}th,td{padding:11px;border:1px solid var(--line);white-space:nowrap}tr:nth-child(even){background:#f8fafc}.marks input{min-width:82px;padding:8px}.muted{color:#637384}.heading{display:flex;justify-content:space-between;align-items:center;gap:15px}.empty{padding:20px;text-align:center;color:#637384}.rank{display:inline-block;padding:4px 8px;background:#fff2cc;border:1px solid #e2b84d;color:#795600;border-radius:20px;font-size:12px;font-weight:bold;margin-left:6px}.percent{font-weight:bold;color:var(--green)}@media(max-width:780px){.sidebar{width:64px;padding:18px 9px}.brand strong,.brand small,.side-nav span,.side-logout span{display:none}.brand{padding-left:4px}.app-main{margin-left:64px}.app-header{padding:18px}.admin-chip span{display:none}.wrap{padding:0 15px}.grid,.grid-3{grid-template-columns:1fr}.card{padding:18px}}