:root{--navy:#0b2f5b;--navy2:#123f72;--gold:#b8923b;--bg:#f5f7fa;--card:#fff;--text:#172033;--muted:#6b7688;--line:#e6eaf0;--green:#1d7a52;--orange:#b76914;--red:#b43a3a;--gray:#7b8492;--shadow:0 8px 26px rgba(15,35,60,.07);--radius:16px}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.muted{color:var(--muted)}.small{font-size:12px}.strong{font-weight:750}.nowrap{white-space:nowrap}.boot{min-height:100vh;display:grid;place-items:center;align-content:center;gap:14px;color:var(--navy)}.spinner{width:30px;height:30px;border:3px solid #dbe3ec;border-top-color:var(--gold);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(430px,100%);background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:28px}.brand{font-size:24px;font-weight:850;letter-spacing:-.5px;color:var(--navy)}.brand span{color:var(--gold)}.auth-card h1{font-size:25px;margin:18px 0 6px}.auth-card p{margin:0 0 22px}.field{display:flex;flex-direction:column;gap:7px;margin:12px 0}.field label{font-size:13px;font-weight:700;color:#39465a}.field input,.field select,.field textarea{width:100%;border:1px solid #d9e0e8;border-radius:11px;background:#fff;padding:11px 12px;outline:none;transition:.15s}.field input:focus,.field select:focus,.field textarea:focus{border-color:#94a9bf;box-shadow:0 0 0 3px rgba(11,47,91,.08)}.field textarea{min-height:92px;resize:vertical}.btn{border:0;border-radius:11px;padding:10px 14px;font-weight:750}.btn.primary{background:var(--navy);color:#fff}.btn.primary:hover{background:var(--navy2)}.btn.secondary{background:#eef2f6;color:var(--navy)}.btn.gold{background:#f7f0df;color:#785c1c}.btn.danger{background:#fff0f0;color:var(--red);border:1px solid #ffd6d6}.btn.ghost{background:transparent;color:var(--navy)}.btn.full{width:100%}.link-btn{background:none;border:0;color:var(--navy);font-weight:700;padding:8px 0}.error{background:#fff1f1;color:#9b2f2f;border:1px solid #ffd5d5;padding:10px 12px;border-radius:10px;margin:10px 0}.success{background:#eef9f3;color:#176540;border:1px solid #ccebd9;padding:10px 12px;border-radius:10px;margin:10px 0}
.app{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.sidebar{background:var(--navy);color:#fff;padding:22px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.sidebar .brand{color:#fff;padding:4px 8px 22px}.side-nav{display:grid;gap:5px}.nav-btn{display:flex;align-items:center;gap:10px;width:100%;border:0;border-radius:10px;padding:11px 12px;background:transparent;color:#d8e3ef;text-align:left;font-weight:700}.nav-btn:hover,.nav-btn.active{background:rgba(255,255,255,.11);color:#fff}.side-profile{margin-top:auto;padding:14px 10px;border-top:1px solid rgba(255,255,255,.13)}.main{min-width:0}.topbar{height:66px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:30}.topbar-title{font-weight:800;color:var(--navy)}.content{padding:26px 28px 88px;max-width:1440px;margin:auto}.pagehead{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px}.pagehead h1{font-size:25px;margin:0 0 5px;letter-spacing:-.4px}.actions{display:flex;gap:8px;flex-wrap:wrap}.grid{display:grid;gap:16px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 2px 10px rgba(20,40,70,.025)}.card h2,.card h3{margin:0 0 10px}.metric .label{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.metric .value{font-size:27px;font-weight:850;margin-top:6px;color:var(--navy)}.metric .sub{font-size:12px;color:var(--muted);margin-top:4px}.badge{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800;background:#eef2f6;color:#4b596c}.badge.green{background:#eaf7f0;color:var(--green)}.badge.orange{background:#fff3e4;color:var(--orange)}.badge.red{background:#ffeded;color:var(--red)}.badge.gold{background:#f8f0df;color:#7d611e}.progress{height:9px;background:#edf1f5;border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:var(--gold);border-radius:999px}.list{display:grid;gap:10px}.list-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}.list-item:last-child{border-bottom:0}.empty{padding:28px;text-align:center;color:var(--muted);border:1px dashed #ccd5df;border-radius:14px}.notice{border-left:4px solid var(--gold);background:#fffaf0;padding:12px 14px;border-radius:10px}.notice.red{border-left-color:var(--red);background:#fff5f5}.notice.green{border-left-color:var(--green);background:#f4fbf7}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}table{width:100%;border-collapse:collapse;min-width:720px}th,td{text-align:left;padding:12px 13px;border-bottom:1px solid var(--line);font-size:13px;vertical-align:middle}th{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);background:#fafbfc}tr:last-child td{border-bottom:0}.student-name{font-weight:800;color:var(--navy);cursor:pointer}.tabs{display:flex;gap:5px;overflow:auto;padding:4px;background:#eef2f6;border-radius:12px;margin-bottom:18px}.tab{white-space:nowrap;border:0;background:transparent;color:#5b6777;padding:9px 12px;border-radius:9px;font-weight:750}.tab.active{background:#fff;color:var(--navy);box-shadow:0 1px 5px rgba(20,40,70,.08)}.section-title{font-size:16px;font-weight:850;margin:24px 0 12px}.quick-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.quick{border:1px solid var(--line);background:#fff;border-radius:13px;padding:16px;text-align:left;font-weight:800;color:var(--navy)}.quick:hover{border-color:#b8c5d3;box-shadow:var(--shadow)}.chart-box{height:300px;position:relative}.filter-row{display:flex;gap:8px;align-items:end;flex-wrap:wrap}.filter-row .field{min-width:150px;flex:1;margin:0}.split{display:flex;gap:16px;align-items:center;justify-content:space-between}.pill-select{display:flex;gap:5px;flex-wrap:wrap}.pill-select button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 11px;font-weight:700;color:#596679}.pill-select button.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.mobile-nav{display:none}.toast{position:fixed;right:18px;bottom:18px;z-index:100;background:#172033;color:#fff;padding:12px 15px;border-radius:11px;box-shadow:var(--shadow);opacity:0;transform:translateY(8px);pointer-events:none;transition:.2s;max-width:360px}.toast.show{opacity:1;transform:none}.modal-backdrop{position:fixed;inset:0;background:rgba(10,25,45,.45);display:grid;place-items:center;padding:18px;z-index:90}.modal{width:min(720px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:18px;padding:22px;box-shadow:0 25px 70px rgba(10,25,45,.25)}.modal h2{margin-top:0}.modal-close{float:right;border:0;background:#eef2f6;border-radius:9px;padding:7px 10px}.divider{height:1px;background:var(--line);margin:18px 0}.danger-zone{border:1px solid #ffd3d3;background:#fff9f9;border-radius:14px;padding:16px}.kpi-row{display:flex;gap:8px;flex-wrap:wrap}.kpi-chip{padding:8px 10px;border-radius:10px;background:#f3f5f8;font-weight:750;font-size:13px}.report-sheet{background:#fff;color:#172033;width:210mm;min-height:297mm;margin:0 auto 16px;padding:15mm;box-shadow:var(--shadow)}.report-head{display:flex;justify-content:space-between;border-bottom:2px solid var(--navy);padding-bottom:10px;margin-bottom:14px}.report-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.report-box{border:1px solid #dfe5ec;border-radius:10px;padding:10px}.report-box strong{display:block;color:var(--navy);font-size:18px;margin-top:4px}.report-footer{margin-top:16px;border-top:1px solid #dfe5ec;padding-top:10px;font-size:11px;color:#566275}
@media(max-width:980px){.app{grid-template-columns:1fr}.sidebar{display:none}.topbar{padding:0 16px}.content{padding:18px 14px 90px}.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}.quick-actions{grid-template-columns:repeat(2,1fr)}.mobile-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);z-index:60;padding:6px max(7px,env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(7px,env(safe-area-inset-left))}.mobile-nav button{border:0;background:transparent;padding:8px 4px;font-size:10px;font-weight:750;color:#697587}.mobile-nav button.active{color:var(--navy)}.mobile-nav button.center{background:var(--navy);color:#fff;border-radius:12px;margin:-12px 3px 5px;box-shadow:0 8px 20px rgba(11,47,91,.23)}.report-sheet{width:100%;min-height:0;padding:20px}.report-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}.pagehead{flex-direction:column}.actions{width:100%}.actions .btn{flex:1}.quick-actions{grid-template-columns:1fr 1fr}.chart-box{height:240px}.filter-row{display:grid;grid-template-columns:1fr 1fr}.filter-row .field{min-width:0}.report-grid{grid-template-columns:1fr}.topbar{height:58px}.content{padding-top:14px}.auth-card{padding:22px 18px}.metric .value{font-size:24px}}
@media print{body{background:#fff}.app,.topbar,.sidebar,.mobile-nav,.toast,.modal-backdrop,.no-print{display:none!important}.print-root{display:block!important}.report-sheet{box-shadow:none;margin:0;page-break-after:always}.report-sheet:last-child{page-break-after:auto}@page{size:A4;margin:0}}