:root{
  --canvas:#F6EEE2;
  --panel:#ffffff;
  --panel-deep:#EADFCE;
  --burgundy:#6F0322;
  --burgundy-deep:#4E0117;
  --navy:#072A54;
  --accent:#F37910;
  --accent-hover:#FF9438;
  --ink:#241A1C;
  --ink-muted:#6C5F62;
  --line:rgba(36,26,28,.14);
  --good:#1d6b3a;
  --display:"Montserrat",Arial,sans-serif;
  --body:"Source Serif 4",Georgia,serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55}
h1,h2,h3,h4{font-family:var(--display);font-weight:800;text-transform:uppercase;letter-spacing:.01em;margin:0 0 .5em}
h1{font-size:26px}
h2{font-size:20px}
h3{font-size:16px}
a{color:var(--burgundy)}
p{margin:0 0 1em}
.topbar{background:var(--burgundy-deep);color:#F6EEE2;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.topbar .brand{font-family:var(--display);font-weight:800;letter-spacing:.08em;text-decoration:none;color:#F6EEE2;font-size:15px}
.topbar .who{font-family:var(--display);font-size:12px;letter-spacing:.06em;text-transform:uppercase;display:flex;align-items:center;gap:14px}
.topbar .who a{color:#F6EEE2;opacity:.85;text-decoration:none}
.topbar .who a:hover{opacity:1;text-decoration:underline}
.wrap{max-width:920px;margin:0 auto;padding:32px 20px 80px}
.wrap.narrow{max-width:480px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;margin-bottom:20px}
.card + .card{margin-top:0}
.muted{color:var(--ink-muted)}
.btn{display:inline-block;font-family:var(--display);font-weight:700;font-size:13px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:11px 20px;border-radius:8px;border:2px solid var(--accent);background:var(--accent);color:#1a0a02;cursor:pointer}
.btn:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn.ghost{background:transparent;color:var(--burgundy);border-color:var(--burgundy)}
.btn.ghost:hover{background:rgba(111,3,34,.06)}
.btn.small{padding:7px 14px;font-size:11px}
form{display:flex;flex-direction:column;gap:14px}
form.inline{flex-direction:row;align-items:center;flex-wrap:wrap}
label{font-family:var(--display);font-weight:700;font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-muted);display:block;margin-bottom:6px}
input[type=text],input[type=email],input[type=password],input[type=date],input[type=number],input[type=file],textarea,select{
  width:100%;padding:11px 12px;border-radius:8px;border:1.5px solid var(--line);background:#fff;font-family:var(--body);font-size:15px;color:var(--ink)
}
.pwrow{position:relative}
.pwrow input[type=password],.pwrow input[type=text]{padding-right:64px}
.pwtoggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--burgundy);font-family:var(--display);font-weight:700;font-size:11px;letter-spacing:.04em;text-transform:uppercase;cursor:pointer;padding:6px 8px}
.pwtoggle:hover{text-decoration:underline}
textarea{min-height:90px;resize:vertical;font-family:var(--body)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}
.error{background:#fdecea;border:1px solid #f1b0a8;color:#7a2318;padding:12px 14px;border-radius:8px;font-size:14px}
.success{background:#e9f5ee;border:1px solid #9fd6b6;color:#155c33;padding:12px 14px;border-radius:8px;font-size:14px}
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--display);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-muted)}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-family:var(--display);font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.pill.admin{background:rgba(7,42,84,.12);color:var(--navy)}
.pill.teacher{background:rgba(111,3,34,.12);color:var(--burgundy)}
.pill.student{background:rgba(243,121,16,.14);color:#a3560a}
.classlist{display:grid;gap:14px}
.classcard{display:block;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px 22px;text-decoration:none;color:var(--ink)}
.classcard:hover{border-color:var(--accent)}
.classcard h3{margin-bottom:4px}
.classcard .meta{font-family:var(--display);font-size:12px;letter-spacing:.04em;color:var(--ink-muted);text-transform:none}
.zoomlink{display:inline-flex;align-items:center;gap:8px;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;font-family:var(--display);font-weight:700;font-size:13px;letter-spacing:.04em}
.zoomlink:hover{background:#0a3a72}
.post{border-top:1px solid var(--line);padding:14px 0}
.post:first-child{border-top:none}
.post .who{font-family:var(--display);font-weight:700;font-size:13px;color:var(--burgundy)}
.post .when{font-size:12px;color:var(--ink-muted);margin-left:8px}
.reply{margin-left:26px;margin-top:8px;padding-left:14px;border-left:2px solid var(--line)}
.grade{font-family:var(--display);font-weight:800;font-size:15px}
.grade.none{color:var(--ink-muted);font-weight:600;font-size:13px;text-transform:none;font-family:var(--body)}
.tabs{display:flex;gap:4px;margin-bottom:20px;flex-wrap:wrap}
.tabs a{padding:8px 14px;border-radius:8px 8px 0 0;text-decoration:none;color:var(--ink-muted);font-family:var(--display);font-size:12px;letter-spacing:.04em;text-transform:uppercase;border:1px solid transparent}
.tabs a.active{color:var(--burgundy);border-color:var(--line);border-bottom-color:var(--canvas);background:var(--canvas)}
.center{text-align:center}
.stack{display:flex;flex-direction:column;gap:6px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.hint{font-size:13px;color:var(--ink-muted)}
@media (max-width:600px){.wrap{padding:20px 14px 60px}.card{padding:18px}}