:root{--bg:#f6f8fc;--card:#fff;--text:#162033;--muted:#68758a;--primary:#2563eb;--primary2:#1d4ed8;--border:#e5eaf2;--shadow:0 12px 35px rgba(22,32,51,.08);--radius:18px}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
button,input,select,textarea{font:inherit}button{cursor:pointer}a{text-decoration:none;color:inherit}
.topbar{height:72px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:24px;padding:0 28px;position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:12px;min-width:220px}.logo{width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,#2563eb,#4f46e5);display:grid;place-items:center;color:#fff;font-weight:900;font-size:20px}.brand strong{font-size:18px}.brand small{display:block;color:var(--muted);font-size:11px}
.topnav{display:flex;gap:6px;flex:1}.navbtn,.sidebtn{border:0;background:transparent;color:#4d5a6f}.navbtn{padding:11px 13px;border-radius:10px}.navbtn.active,.navbtn:hover,.sidebtn.active,.sidebtn:hover{background:#eef4ff;color:var(--primary)}
.userarea{display:flex;align-items:center;gap:10px}.avatar{width:38px;height:38px;border-radius:50%;background:#eaf1ff;color:var(--primary);display:grid;place-items:center;font-weight:800}.menu{display:none}
.layout{display:flex;min-height:calc(100vh - 72px)}.sidebar{width:240px;background:#fff;border-right:1px solid var(--border);padding:22px 14px;flex:none}.side-title{font-size:11px;color:#8a96a8;font-weight:800;letter-spacing:.12em;padding:8px 12px}.sidebtn{width:100%;display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px;text-align:left;margin:3px 0}.icon{width:20px;height:20px;display:inline-grid;place-items:center}
main{flex:1;min-width:0;padding:32px;max-width:1500px}.pagehead{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:24px}.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--primary);font-weight:800}.pagehead h1{margin:5px 0 8px;font-size:34px}.pagehead p{margin:0;color:var(--muted)}
.grid{display:grid;gap:18px}.stats{grid-template-columns:repeat(4,minmax(0,1fr))}.cards3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.stat{min-height:145px}.stat .num{font-size:32px;font-weight:850;margin:13px 0 4px}.muted{color:var(--muted)}.kicker{font-size:13px;font-weight:700;color:#59667a}
.action{border:1px solid var(--border);background:#fff;border-radius:14px;padding:17px;text-align:left}.action:hover{box-shadow:var(--shadow);border-color:#cbd8f5}.bigicon{width:44px;height:44px;border-radius:13px;background:#eef4ff;color:var(--primary);display:grid;place-items:center;margin-bottom:13px;font-size:21px}.action strong{display:block;margin-bottom:5px}.action span{font-size:13px;color:var(--muted)}
.primary{border:0;background:var(--primary);color:#fff;padding:12px 17px;border-radius:11px;font-weight:750}.primary:hover{background:var(--primary2)}.secondary{border:1px solid var(--border);background:#fff;color:var(--text);padding:11px 15px;border-radius:11px;font-weight:700}.full{width:100%}
.formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.field{display:flex;flex-direction:column;gap:7px}.field label{font-size:13px;font-weight:750}.field input,.field select,.field textarea{border:1px solid #dbe2ec;border-radius:11px;padding:12px 13px;outline:none;background:#fff;color:var(--text)}.field textarea{min-height:110px;resize:vertical}.span2{grid-column:1/-1}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}
.tablewrap{overflow:auto}.table{width:100%;border-collapse:collapse;min-width:700px}.table th,.table td{text-align:left;padding:15px 12px;border-bottom:1px solid var(--border);font-size:14px}.table th{color:#6c788c;font-size:12px;text-transform:uppercase}
.progress{height:9px;background:#edf1f7;border-radius:99px;overflow:hidden}.progress>i{display:block;height:100%;background:var(--primary);border-radius:99px}.barrow{display:flex;justify-content:space-between;margin-bottom:7px;font-size:13px}
.quizbox{max-width:950px;margin:auto}.quiztop{display:flex;justify-content:space-between;align-items:center}.timer{font-weight:850;color:#dc3545;background:#fff1f2;padding:9px 12px;border-radius:10px}.question{font-size:23px;font-weight:800;line-height:1.4;margin:20px 0}.options{display:grid;gap:12px}.option{border:1px solid var(--border);background:#fff;border-radius:13px;padding:15px;text-align:left}.option.selected{border-color:#7da3ff;background:#f2f6ff}
.auth{min-height:100vh;display:grid;place-items:center;padding:24px;background:#f6f8fc}.authbox{width:min(440px,100%);background:#fff;border:1px solid var(--border);border-radius:22px;padding:30px;box-shadow:var(--shadow)}.authbrand{display:flex;gap:12px;align-items:center;margin-bottom:24px}.authbox h1{margin:0 0 8px}.authbox .field{margin-top:15px}.authfoot{text-align:center;color:var(--muted);font-size:13px;margin-top:18px}.error{background:#fff1f2;color:#b42318;border:1px solid #ffd4d8;padding:10px;border-radius:10px;margin-top:12px}.toast{position:fixed;right:22px;bottom:22px;background:#162033;color:#fff;padding:12px 16px;border-radius:12px;z-index:99}
@media(max-width:1050px){.topnav{display:none}.menu{display:block;margin-left:auto;border:0;background:#eef4ff;color:var(--primary);padding:9px;border-radius:10px}.sidebar{position:fixed;left:-260px;top:72px;height:calc(100vh - 72px);z-index:30;transition:.2s;box-shadow:0 20px 50px rgba(0,0,0,.15)}.sidebar.open{left:0}.stats{grid-template-columns:repeat(2,1fr)}.cards3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.topbar{padding:0 15px}.brand{min-width:0}.brand small{display:none}.userarea .username{display:none}main{padding:20px 15px}.pagehead{display:block}.pagehead h1{font-size:28px}.stats,.cards3,.formgrid{grid-template-columns:1fr}.span2{grid-column:auto}.card{padding:18px}.form-actions{flex-direction:column}.form-actions button{width:100%}}