:root{--navy:#16324F;--ink:#0E2036;--amber:#E0952B;--bg:#EEF1F5;--surface:#fff;
--line:#D7DEE7;--muted:#5A6A7D;--ok:#1C8A57;--warn:#B0701C;--bad:#C13A3A;
--mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;font-feature-settings:'tnum'}
a{color:inherit}
.nav{background:var(--navy);color:#fff;display:flex;align-items:center;gap:16px;padding:0 22px;height:52px;flex-wrap:wrap}
.nav .brand{font-weight:800;letter-spacing:-.02em}
.nav a{color:#C4D0E0;text-decoration:none;font-size:14px;font-weight:600;padding:6px 4px}
.nav a:hover,.nav a.on{color:#fff}
.nav .spacer{flex:1}
.nav .who{color:#9FB0C6;font-size:13px}
.wrap{max-width:1080px;margin:0 auto;padding:24px 20px 60px}
h1{font-size:22px;margin:0 0 16px;letter-spacing:-.02em}
h2{font-size:15px;margin:0 0 10px}
.muted{color:var(--muted);font-size:13px;line-height:1.5}
.mono{font-family:var(--mono)}.b{font-weight:700}.right{text-align:right}.c{text-align:center}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:16px}
.card.narrow{max-width:420px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
input,select,textarea,button{font-family:inherit;font-size:13.5px}
input,select,textarea{border:1px solid var(--line);border-radius:8px;padding:8px 9px;background:#fff;color:var(--ink);width:100%}
textarea{font-family:var(--mono);font-size:12px}
label{display:block;font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.btn{background:var(--navy);color:#fff;border:none;border-radius:8px;padding:9px 15px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block}
.btn:hover{background:#20456B}
.btn.primary{background:var(--amber);color:#3A2A08}.btn.primary:hover{background:#EEA845}
.btn.ghost{background:transparent;color:var(--navy);border:1px solid var(--line)}.btn.ghost:hover{background:#EAEFF5}
.btn.sm{padding:5px 10px;font-size:12px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.inline{display:inline}
.auth{max-width:360px;margin:8vh auto;background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;text-align:center}
.auth-logo{width:120px;height:120px;object-fit:contain;margin:0 auto 8px;display:block}
.auth h1{margin:0 0 2px}.auth form{margin-top:16px;text-align:left}.auth button{width:100%;margin-top:8px}
.brand-logo{width:28px;height:28px;object-fit:contain;vertical-align:middle;margin-right:8px}
.mainhead{display:flex;align-items:center;gap:18px;margin-bottom:18px}
.main-logo{width:88px;height:88px;object-fit:contain;flex:none}
.chairrow{display:grid;grid-template-columns:1fr 1.4fr auto;gap:10px;align-items:center;margin-bottom:8px}
.chairrow .dname{font-size:13.5px;font-weight:600}
.addrow2{display:grid;grid-template-columns:1.4fr 1.4fr auto;gap:8px;align-items:center}
@media(max-width:680px){.chairrow,.addrow2{grid-template-columns:1fr}}
.err{background:#F8E4E4;border:1px solid #E7B7B7;color:#8A2A2A;padding:9px 12px;border-radius:9px;font-size:13px;margin:10px 0}
.ok{background:#E1F3E9;border:1px solid #B4DDC6;color:#1C6B45;padding:9px 12px;border-radius:9px;font-size:13px;margin:10px 0}
.metagrid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;align-items:end}
.metagrid button{grid-column:1/-1;justify-self:start}
.grp{border:1px solid var(--line);border-radius:10px;padding:12px;margin-bottom:12px}
.grp .title{font-weight:600;margin-bottom:8px}
.grp .students{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:8px}
.grp .assign{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:8px}
.grp .assign label{font-size:10px}
.grp-actions{display:flex;gap:8px;align-items:center}
.grp-actions .lock{color:var(--bad);font-size:11px;font-family:var(--mono)}
.addrow{display:grid;grid-template-columns:1.4fr 1fr 1fr .8fr auto;gap:8px;align-items:center}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;font-size:10.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding:8px 10px;border-bottom:1px solid var(--line)}
.tbl td{padding:8px 10px;border-bottom:1px solid #EDF1F6}
.tbl td.right,.tbl th.right{text-align:right}
.pill{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px}
.pill.warn{background:#FBEEDA;color:var(--warn)}
.mygrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.mycard{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;text-decoration:none}
.mycard:hover{border-color:var(--amber)}
.myrole{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--amber)}
.mytitle{font-weight:700;margin:4px 0 8px;line-height:1.3}
.mystatus{font-size:12px;font-family:var(--mono)}
.mystatus.done{color:var(--ok)}.mystatus.todo{color:var(--muted)}
.back{display:inline-block;color:var(--muted);text-decoration:none;font-size:13px;margin-bottom:8px}
.metarow{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.crit{width:100%;border-collapse:collapse;font-size:13px}
.crit th{text-align:left;font-size:10.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding:6px 8px;border-bottom:1px solid var(--line)}
.crit td{padding:6px 8px;border-bottom:1px solid #EDF1F6;vertical-align:middle}
.crit td.guide{font-size:11px;color:var(--muted);font-family:var(--mono)}
.crit td.sc{white-space:nowrap}
.crit input{width:64px;text-align:center;display:inline-block}
.crit .mx{font-size:11px;color:var(--muted);font-family:var(--mono);margin-left:5px}
.tot{text-align:right;font-size:13px;margin-top:8px;color:var(--muted)}
.tot b{font-family:var(--mono);font-size:15px;color:var(--navy)}
.savebar{display:flex;gap:12px;align-items:center;position:sticky;bottom:12px;background:var(--bg);padding:8px 0}
.rhead{display:flex;gap:12px;align-items:center;margin-bottom:10px}.rhead form{margin-left:auto}
.gr{display:inline-block;min-width:24px;text-align:center;font-weight:800;border-radius:6px;padding:2px 6px}
.grA{background:#E1F3E9;color:var(--ok)}.grB{background:#E5EDF8;color:#2A5CA8}.grC{background:#FBEEDA;color:var(--warn)}
.grD{background:#FBE7DA;color:#A85A2A}.grF{background:#F8E4E4;color:var(--bad)}
@media(max-width:680px){.metagrid,.addrow,.grp .students,.grp .assign,.metarow{grid-template-columns:1fr}}