:root{
  --bg:#EEF3F4;--surface:#FFFFFF;--ink:#16262E;--muted:#5B6E77;--line:#D3DEE2;
  --accent:#0E6B6B;--on-accent:#FFFFFF;--chip:#E4ECEE;--danger:#B3261E;--warn:#E2973A;
  color-scheme:light;box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0F1A1F;--surface:#17252C;--ink:#E6EFF1;--muted:#93A6AE;--line:#2A3B43;
  --accent:#5CC2BF;--on-accent:#0F1A1F;--chip:#22333A;--danger:#F2B8B5;color-scheme:dark}}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:140px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.45}
.wrap{max-width:920px;margin:0 auto;padding:24px 18px 64px}
h1,h2,h3,h4{font-family:"Bricolage Grotesque","Atkinson Hyperlegible",system-ui,sans-serif;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(28px,6vw,40px);line-height:1.1}
.lead{color:var(--muted);margin:8px 0 0;max-width:62ch}
.muted{color:var(--muted)}.small{font-size:13px}.hide{display:none!important}
.top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
button{font:inherit;font-size:14px;font-weight:700;border:1px solid var(--accent);background:var(--accent);color:var(--on-accent);border-radius:8px;padding:7px 12px;cursor:pointer}
button.ghost{background:transparent;color:var(--ink);border-color:var(--line);font-weight:400}
button.danger{background:transparent;color:var(--danger);border-color:var(--danger)}
button:disabled{opacity:.5;cursor:wait}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.bar{position:sticky;top:0;z-index:5;background:var(--bg);padding:14px 0 10px;margin-top:16px;border-bottom:1px solid var(--line)}
.bar input{width:100%;font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink)}
nav{display:flex;gap:8px;overflow-x:auto;margin-top:10px;padding-bottom:2px}
nav a{white-space:nowrap;text-decoration:none;color:var(--ink);background:var(--chip);border-radius:999px;padding:6px 12px;font-size:14px}
.admin-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px;padding:10px 12px;border:1px dashed var(--accent);border-radius:10px;font-size:14px}
.admin-tools span{font-weight:700;color:var(--accent);margin-right:auto}
.course{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 18px 8px;margin-top:20px}
.course h2{font-size:24px}
.head-line{display:flex;justify-content:space-between;gap:8px;align-items:center}
.meta{margin:4px 0 0;font-size:13px;color:var(--muted)}
.note{margin:6px 0 0;font-size:14px;color:var(--muted)}
h3{font-size:15px;color:var(--accent);margin:18px 0 6px;display:flex;gap:8px;align-items:center}
.rows{list-style:none;margin:0;padding:0}
.row{display:grid;grid-template-columns:64px 1fr auto;gap:4px 12px;align-items:center;padding:9px 0;border-top:1px solid var(--line)}
.date{font-size:13px;font-variant-numeric:tabular-nums;font-weight:700}
.nodate{color:var(--muted);font-weight:400}
.t{font-size:15px}.sub{display:block;font-size:12.5px;color:var(--muted)}
.links{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;align-items:center}
.pdf{font-size:13px;font-weight:700;text-decoration:none;color:var(--on-accent);background:var(--accent);border-radius:8px;padding:6px 10px;white-space:nowrap}
.ai{font-size:13px;padding:5px 9px;background:transparent;color:var(--accent);border-color:var(--accent)}
.edit{font-size:12px;padding:3px 8px;background:transparent;color:var(--muted);border-color:var(--line);font-weight:400}
.soon{font-size:12.5px;color:var(--muted)}
.todo .t{color:var(--muted)}
.empty{color:var(--muted);margin-top:20px}
/* programme */
.md h2{font-size:22px;margin:4px 0 8px}.md h3{font-size:16px}.md h4{font-size:15px;margin:12px 0 4px}
.md p{margin:6px 0}.md ul,.md ol{margin:6px 0;padding-left:22px}.md li{margin:3px 0}
.md table{border-collapse:collapse;width:100%;font-size:14px;margin:8px 0;display:block;overflow-x:auto}
.md th,.md td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
.md th{background:var(--chip)}
.md code{background:var(--chip);border-radius:4px;padding:0 4px}
.week{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:10px 0}
.week.current{border:2px solid var(--accent)}
.week.past{opacity:.6}
.week .now{display:none;font-size:12px;background:var(--accent);color:var(--on-accent);border-radius:999px;padding:2px 8px;margin-left:8px;font-family:"Atkinson Hyperlegible",sans-serif}
.week.current .now{display:inline}
/* assistant */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(560px,100%);background:var(--surface);border-left:1px solid var(--line);z-index:40;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .2s ease;box-shadow:-8px 0 24px rgba(0,0,0,.12)}
.drawer.open{transform:none}
@media (prefers-reduced-motion:reduce){.drawer{transition:none}}
.drawer-head{display:flex;justify-content:space-between;gap:8px;padding:calc(env(safe-area-inset-top,0px) + 14px) 16px 8px}
.drawer-head h2{font-size:19px}
.tabs{display:flex;gap:4px;padding:0 16px;border-bottom:1px solid var(--line)}
.tabs button{background:transparent;color:var(--muted);border:0;border-bottom:3px solid transparent;border-radius:0;font-weight:700}
.tabs button.on{color:var(--ink);border-bottom-color:var(--accent)}
.drawer-body{flex:1;overflow:auto;padding:14px 16px calc(env(safe-area-inset-bottom,0px) + 24px)}
.row-actions{display:flex;gap:8px;margin:8px 0}
textarea,.field input,.field select,.field textarea{width:100%;font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink)}
.q{border:1px solid var(--line);border-radius:10px;padding:12px;margin:10px 0}
.q p{margin:0 0 8px;font-weight:700}
.q label{display:block;padding:6px 8px;border-radius:6px;cursor:pointer}
.q label:hover{background:var(--chip)}
.q.done label.right{background:rgba(14,107,107,.15);font-weight:700}
.q.done label.wrong{background:rgba(179,38,30,.12);text-decoration:line-through}
.q .exp{margin-top:8px;font-size:14px;color:var(--muted)}
.score{font-weight:700;margin-top:8px}
.loading{color:var(--muted);font-style:italic}
.err{color:var(--danger);font-size:14px}
/* dialogue */
dialog{border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);width:min(640px,94vw);padding:20px}
dialog::backdrop{background:rgba(0,0,0,.4)}
dialog h2{font-size:20px;margin-bottom:12px}
.field{margin:10px 0}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.dlg-actions{display:flex;gap:8px;margin-top:16px}.spacer{flex:1}
.flist{list-style:none;padding:0;margin:6px 0}
.flist li{display:flex;gap:6px;align-items:center;margin:4px 0}
.flist input{flex:1}
@media (max-width:600px){.row{grid-template-columns:52px 1fr}.links{grid-column:2;justify-content:flex-start}.top{flex-direction:column}}