:root{--bg:#f5f6f8;--card:#fff;--ink:#1d2433;--muted:#667085;--line:#e3e6ec;--brand:#1f3864;--brand2:#2f5597;--g:#1e7b4a;--gbg:#e3f4ea;--w:#9a6200;--wbg:#fdf1d8;--r:#b42318;--rbg:#fde7e5;--n:#475467;--nbg:#eef0f4}
*{box-sizing:border-box}html,body{margin:0}body{font:14px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand2)}h1{font-size:20px;margin:0 0 16px}h2{font-size:18px;margin:0 0 10px}h3{font-size:15px;margin:0 0 10px}
.top{position:fixed;top:0;left:0;right:0;height:52px;background:var(--brand);color:#fff;display:flex;align-items:center;gap:14px;padding:0 16px;z-index:20}
.top .brand{color:#fff;font-weight:700;text-decoration:none;font-size:16px}.top .who{margin-left:auto;opacity:.85;font-size:13px}.top .lnk{color:#fff;opacity:.85;font-size:13px}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:22px;cursor:pointer}
.side{position:fixed;top:52px;bottom:0;left:0;width:220px;background:#fff;border-right:1px solid var(--line);overflow:auto;padding:8px 0 24px;z-index:10}
.side .grp{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:14px 18px 4px}
.side a{display:block;padding:7px 18px;color:var(--ink);text-decoration:none}.side a:hover{background:var(--nbg)}.side a.on{background:#e8eef9;color:var(--brand);font-weight:600;border-left:3px solid var(--brand);padding-left:15px}
.main{margin:52px 0 0 220px;padding:22px 26px 60px;max-width:1400px}.plain{padding:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin-bottom:16px}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:16px}.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:16px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px}.kpi .kl{color:var(--muted);font-size:12px}.kpi .kv{font-size:22px;font-weight:700;margin-top:2px}.kpi .ks{font-size:12px;color:var(--muted)}
.kpi.r .kv{color:var(--r)}.kpi.w .kv{color:var(--w)}.kpi.g .kv{color:var(--g)}
.tw{overflow-x:auto}.t{width:100%;border-collapse:collapse;background:#fff}.t th,.t td{padding:7px 9px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.t th{font-size:12px;color:var(--muted);font-weight:600;background:#fafbfc;position:sticky;top:0}.t tr:hover td{background:#fafcff}.t td.num,.t th.num{text-align:right}
.t.compact td{padding:4px 7px}
.badge{display:inline-block;padding:1px 8px;border-radius:20px;font-size:12px;font-weight:600}.badge.g{background:var(--gbg);color:var(--g)}.badge.w{background:var(--wbg);color:var(--w)}.badge.r{background:var(--rbg);color:var(--r)}.badge.n{background:var(--nbg);color:var(--n)}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:12px}.flash.ok{background:var(--gbg);color:var(--g)}.flash.err{background:var(--rbg);color:var(--r)}.flash.warn{background:var(--wbg);color:var(--w)}
.btn{display:inline-block;background:var(--brand2);color:#fff;border:0;border-radius:7px;padding:8px 14px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--brand)}.btn.sec{background:#fff;color:var(--brand2);border:1px solid var(--brand2)}.btn.ok{background:var(--g)}.btn.danger{background:var(--r)}.btn.sm{padding:4px 10px;font-size:12px}
form.inline{display:inline}
.fld{display:flex;flex-direction:column;gap:4px;margin-bottom:10px}.fld span{font-size:12px;color:var(--muted);font-weight:600}.fld small{color:var(--muted);font-size:12px}
input,select,textarea{font:inherit;padding:7px 9px;border:1px solid #cfd4dc;border-radius:7px;background:#fff;color:var(--ink);max-width:100%}
textarea{min-height:70px}input[type=checkbox]{width:18px;height:18px}
.stack{display:flex;flex-direction:column}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:4px 16px}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:end}.row .fld{margin-bottom:0}
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin-bottom:14px}.filters .fld{margin:0}
.muted{color:var(--muted)}.right{text-align:right}.mt{margin-top:14px}.nowrap{white-space:nowrap}
.bar{display:inline-block;width:90px;height:8px;background:var(--nbg);border-radius:5px;vertical-align:middle;overflow:hidden}.bar span{display:block;height:100%}.bar .b{background:var(--brand2)}.bar .g{background:var(--g)}.bar .w{background:#e0a100}.bar .r{background:var(--r)}
.login{max-width:380px;margin:9vh auto}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:14px;flex-wrap:wrap}.tabs a{padding:8px 12px;text-decoration:none;color:var(--muted);border-bottom:2px solid transparent}.tabs a.on{color:var(--brand);border-color:var(--brand);font-weight:600}
.pill{display:inline-block;background:var(--nbg);border-radius:6px;padding:2px 8px;margin:2px;font-size:12px}
/* classroom display */
body.display{background:#0f1729;color:#eef2f8}body.display .card{background:#18223a;border-color:#2a3654;color:#eef2f8}
body.display .muted{color:#9aa6bf}.slot{display:block;text-decoration:none;width:100%;text-align:left;padding:18px;margin:10px 0;border-radius:12px;border:1px solid #2a3654;background:#1d2a47;color:#fff;font-size:18px;cursor:pointer}
.slot b{font-size:20px}.slot.done{opacity:.55}
.att-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px}
.att{padding:14px 10px;border-radius:10px;border:2px solid var(--g);background:var(--gbg);color:#123;font-size:15px;cursor:pointer;text-align:left;user-select:none}
.att.abs{border-color:var(--r);background:var(--rbg)}.att small{display:block;font-size:12px;opacity:.7}
.concept{display:flex;gap:10px;align-items:center;padding:8px 10px;border-radius:8px;border:1px solid var(--line);margin:6px 0;background:#fafbfc;font-size:14px}body.display .concept{border-color:#2a3654;background:#1d2a47;font-size:15px}
.concept.donebefore{opacity:.5}.concept input{width:24px;height:24px}
body.display .btn{font-size:17px;padding:12px 20px}body.display textarea,body.display input,body.display select{background:#0f1729;color:#fff;border-color:#3a4870}
.pinpad{display:grid;grid-template-columns:repeat(3,80px);gap:10px;justify-content:center}.pinpad button{height:64px;font-size:24px;border-radius:12px;border:1px solid #3a4870;background:#1d2a47;color:#fff}
.print-only{display:none}
@media print{.top,.side,.no-print,.btn{display:none!important}.main{margin:0;padding:0}.card{border:0}.print-only{display:block}body{background:#fff}}
@media (max-width:860px){.menu-btn{display:block}.side{transform:translateX(-100%);transition:.2s}body.nav-open .side{transform:none}.main{margin-left:0;padding:16px}.top .who{display:none}}
.chap{border:1px solid var(--line);border-radius:8px;padding:6px 10px;margin:6px 0}.chap summary{cursor:pointer;padding:4px 0}body.display .chap{border-color:#2a3654}
.flagtxt{color:var(--r);font-size:12px;font-weight:600}