/* Layout: registration-desk tool. Header band, filter bar, course list beside a sticky "My plan" timetable. Colors borrow the LUJ schedule's own coding: amber = Mon/Wed/Fri, blue = Tue/Thu. */
:root{
  --paper:#f4f6f9; --card:#ffffff; --ink:#18202e; --muted:#586172; --line:#dce1e8; --soft:#eef1f6;
  --accent:#2343a8; --accent-ink:#ffffff;
  --mwf:#b77d00; --mwf-bg:#fff1c7; --tth:#1f6fb8; --tth-bg:#e0edfa;
  --good:#1d7a4a; --warn:#b54708; --warn-bg:#fdecdf; --lock-bg:#f1f2f6;
  --f-display:"Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body:"Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --f-mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#11151c; --card:#19202b; --ink:#e8ebf1; --muted:#9ea7b6; --line:#2b3342; --soft:#202836;
  --accent:#8ea6ff; --accent-ink:#0f1630;
  --mwf:#f2bd3a; --mwf-bg:#3a2d08; --tth:#6cb0f2; --tth-bg:#0f2a44;
  --good:#5fd39a; --warn:#ffa36b; --warn-bg:#3b2215; --lock-bg:#1e2531; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#11151c; --card:#19202b; --ink:#e8ebf1; --muted:#9ea7b6; --line:#2b3342; --soft:#202836;
  --accent:#8ea6ff; --accent-ink:#0f1630;
  --mwf:#f2bd3a; --mwf-bg:#3a2d08; --tth:#6cb0f2; --tth-bg:#0f2a44;
  --good:#5fd39a; --warn:#ffa36b; --warn-bg:#3b2215; --lock-bg:#1e2531; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.5}
.wrap{max-width:1240px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
header.top{border-bottom:1px solid var(--line);background:var(--card)}
header.top .wrap{padding-block:18px 14px;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:flex-end;justify-content:space-between}
.brand{font-family:var(--f-display);font-weight:800;font-size:clamp(26px,4vw,34px);letter-spacing:-.02em;line-height:1}
.brand span{color:var(--accent)}
.sub{color:var(--muted);font-size:14px;margin-top:6px}
.legend{display:flex;gap:8px;flex-wrap:wrap;font-size:13px}
.notice{background:var(--warn-bg);color:var(--ink);border-bottom:1px solid var(--line)}
.notice .wrap{padding-block:9px;font-size:14px}
.notice b{color:var(--warn)}
.chip{display:inline-flex;align-items:center;gap:6px;font-family:var(--f-mono);font-size:12px;font-weight:500;padding:2px 8px;border-radius:999px;white-space:nowrap}
.chip.mwf{background:var(--mwf-bg);color:var(--mwf)}
.chip.tth{background:var(--tth-bg);color:var(--tth)}
.filters{padding-block:16px 6px;display:grid;grid-template-columns:minmax(0,2fr) repeat(4,minmax(0,1fr));gap:10px}
.filters label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;min-width:0}
input,select,textarea,button{font:inherit;color:inherit}
input[type=search],select,textarea,input[type=number]{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:8px 10px;width:100%;text-transform:none;letter-spacing:0;font-size:15px}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--card)}
.seg button{flex:1;border:0;background:transparent;padding:8px 6px;cursor:pointer;font-size:14px;letter-spacing:0;text-transform:none}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.toggles{display:flex;flex-wrap:wrap;gap:16px;align-items:center;padding-block:4px 14px;font-size:14px;color:var(--muted)}
.toggles input{accent-color:var(--accent)}
.count{margin-left:auto;font-variant-numeric:tabular-nums}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:24px;align-items:start;padding-bottom:40px}
.list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 14px 12px;display:flex;flex-direction:column;gap:8px;cursor:pointer;text-align:left;min-width:0}
.card:hover{border-color:var(--accent)}
.card:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.code{font-family:var(--f-mono);font-weight:600;font-size:13px;color:var(--muted)}
.ctitle{font-family:var(--f-display);font-weight:600;font-size:18px;line-height:1.2;text-wrap:balance}
.secs{display:flex;flex-direction:column;gap:5px}
.secrow{display:flex;flex-wrap:wrap;align-items:center;gap:4px 8px;font-size:13px}
.inst{color:var(--ink)}
.foot{color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-block:14px 28px}
.stats{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted);border-top:1px dashed var(--line);padding-top:8px;margin-top:auto;font-variant-numeric:tabular-nums}
.stats b{color:var(--ink);font-size:15px}
.locked{color:var(--muted);font-size:13px}
.flag{font-size:12px;color:var(--warn)}
aside.plan{position:sticky;top:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:12px}
.plan h2{font-family:var(--f-display);font-size:20px;margin:0}
.totals{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.tot{background:var(--soft);border-radius:8px;padding:8px}
.tot b{display:block;font-family:var(--f-display);font-size:22px;font-variant-numeric:tabular-nums}
.tot span{font-size:12px;color:var(--muted)}
.week{display:grid;grid-template-columns:38px repeat(5,minmax(0,1fr));gap:2px;font-size:11px}
.week .h{text-align:center;color:var(--muted);font-weight:700}
.week .t{color:var(--muted);font-family:var(--f-mono);font-size:10px;line-height:1.1;padding-top:2px}
.week .c{min-height:30px;background:var(--soft);border-radius:4px;display:flex;flex-direction:column;gap:1px;padding:1px}
.blk{border-radius:3px;font-family:var(--f-mono);font-size:10px;font-weight:600;padding:1px 3px;line-height:1.3;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.blk.mwf{background:var(--mwf-bg);color:var(--mwf)}.blk.tth{background:var(--tth-bg);color:var(--tth)}
.blk.clash{outline:2px solid var(--warn)}
.planlist{display:flex;flex-direction:column;gap:6px;margin:0;padding:0;list-style:none}
.planlist li{display:flex;gap:8px;align-items:center;justify-content:space-between;font-size:14px;border-bottom:1px solid var(--line);padding-bottom:6px}
.x{border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:18px;line-height:1;padding:2px 6px}
.warnbox{background:var(--warn-bg);color:var(--ink);border-radius:8px;padding:8px 10px;font-size:13px}
.empty{color:var(--muted);font-size:14px}
dialog{border:0;padding:0;background:transparent;max-width:100vw;max-height:100vh;width:100%;height:100%;margin:0}
dialog::backdrop{background:rgba(10,14,22,.45)}
.drawer>*{flex-shrink:0}
.drawer{margin-left:auto;height:100%;width:min(640px,100%);background:var(--card);overflow-y:auto;padding:20px max(20px,env(safe-area-inset-right,0px)) 32px 20px;display:flex;flex-direction:column;gap:16px;border-left:1px solid var(--line)}
.dhead{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.dhead h2{font-family:var(--f-display);font-size:26px;line-height:1.15;margin:4px 0 0;text-wrap:balance}
.btn{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:7px 12px;cursor:pointer;font-size:14px}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.small{padding:4px 9px;font-size:13px}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.fact{background:var(--soft);border-radius:8px;padding:10px}
.fact .k{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.fact .v{font-size:14px}
.sectbl{width:100%;border-collapse:collapse;font-size:14px}
.sectbl td,.sectbl th{padding:7px 6px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.sectbl th{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:700}
.tblwrap{overflow-x:auto}
.meters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.meter{border:1px solid var(--line);border-radius:8px;padding:8px}
.meter b{font-family:var(--f-display);font-size:22px;display:block;font-variant-numeric:tabular-nums}
.meter span{font-size:12px;color:var(--muted)}
.rev{border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:6px}
.revmeta{display:flex;flex-wrap:wrap;gap:6px 12px;font-size:13px;color:var(--muted)}
.tag{font-size:11px;background:var(--soft);color:var(--muted);border-radius:4px;padding:1px 6px;text-transform:uppercase;letter-spacing:.05em}
.tag.mine{background:var(--accent);color:var(--accent-ink)}
.stars{color:var(--mwf);letter-spacing:1px}
h3{font-family:var(--f-display);font-size:17px;margin:4px 0 0}
form.revform{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;background:var(--soft);border-radius:10px;padding:12px}
form.revform label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}
form.revform .full{grid-column:1/-1}
.okmsg{color:var(--good);font-size:14px}
.muted{color:var(--muted)}
@media (max-width:980px){.layout{grid-template-columns:minmax(0,1fr)}aside.plan{position:static;order:-1}.filters{grid-template-columns:repeat(2,minmax(0,1fr))}.filters .q{grid-column:1/-1}}
@media (max-width:520px){.meters{grid-template-columns:repeat(2,minmax(0,1fr))}.facts{grid-template-columns:minmax(0,1fr)}form.revform{grid-template-columns:minmax(0,1fr)}}
@media (prefers-reduced-motion:no-preference){.card{transition:border-color .15s}}