:root{
  --ground:#E9EDEE; --surface:#FFFFFF; --surface-2:#F3F6F7; --surface-3:#E4EAEC;
  --ink:#131C22; --ink-2:#4E5F69; --ink-3:#798B95;
  --line:#D0D9DD; --line-2:#B9C6CB;
  --accent:#0F6E78; --accent-ink:#0B545C; --accent-soft:#D6E9EB; --on-accent:#FFFFFF;
  --pass:#2F6B4F; --pass-soft:#D7E8DE;
  --plan:#8A6000; --plan-soft:#F0E4C6;
  --pend:#9C4221; --pend-soft:#F3DED4;
  --clash:#B3261E; --clash-soft:#F6DCDA;
  --shadow:0 1px 2px rgba(19,28,34,.06),0 6px 18px -10px rgba(19,28,34,.22);
  --r:7px;
  --s1:#2a78d6; --s2:#eb6834; --s3:#1baf7a; --s4:#eda100; --s5:#e87ba4; --s6:#008300;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ground:#0E1418; --surface:#151E24; --surface-2:#1B262D; --surface-3:#243139;
    --ink:#E3EBEF; --ink-2:#95A7B1; --ink-3:#6D808B;
    --line:#28353D; --line-2:#38474F;
    --accent:#4FC2CD; --accent-ink:#7FD8E0; --accent-soft:#10353B; --on-accent:#08191C;
    --pass:#63C094; --pass-soft:#143226;
    --plan:#D6A441; --plan-soft:#33280F;
    --pend:#E28359; --pend-soft:#36211A;
    --clash:#F2675C; --clash-soft:#3A1C1A;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 18px -10px rgba(0,0,0,.7);
    --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500; --s5:#d55181; --s6:#008300;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --ground:#0E1418; --surface:#151E24; --surface-2:#1B262D; --surface-3:#243139;
  --ink:#E3EBEF; --ink-2:#95A7B1; --ink-3:#6D808B;
  --line:#28353D; --line-2:#38474F;
  --accent:#4FC2CD; --accent-ink:#7FD8E0; --accent-soft:#10353B; --on-accent:#08191C;
  --pass:#63C094; --pass-soft:#143226;
  --plan:#D6A441; --plan-soft:#33280F;
  --pend:#E28359; --pend-soft:#36211A;
  --clash:#F2675C; --clash-soft:#3A1C1A;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 18px -10px rgba(0,0,0,.7);
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500; --s5:#d55181; --s6:#008300;
  color-scheme:dark;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--ground); color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:14px; line-height:1.5;
}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:22px 20px 80px}
h1,h2,h3{font-family:"IBM Plex Serif",Georgia,"Times New Roman",serif;font-weight:600;text-wrap:balance;margin:0}
.mono,.nr,.ects,.rval,.pnum,.exdates{font-family:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}
.eyebrow{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
:focus-visible{outline:2px solid var(--accent);outline-offset:1px}

header.top{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:18px}
header.top h1{font-size:26px;letter-spacing:-.01em}
header.top .sub{color:var(--ink-2);font-size:13px;margin-top:3px}
[hidden]{display:none!important}
/* shown only on the ?demo example plan */
.demonote{margin:0 0 14px;padding:9px 13px;border-radius:var(--r);font-size:12.5px;
  background:var(--plan-soft);border:1px solid var(--plan);color:var(--ink)}
.demonote a{color:var(--accent-ink);font-weight:600}
.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pill{display:flex;align-items:center;gap:7px;font-size:11.5px;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);border-radius:100px;padding:5px 11px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--pass);flex:none}

.meters{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:14px;box-shadow:var(--shadow)}
.metergrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(168px,1fr));gap:10px}
.meter{display:flex;flex-direction:column;gap:7px}
.mhead{display:flex;align-items:baseline;justify-content:space-between;gap:8px;min-height:2.9em}
.mname{font-weight:600;font-size:12.5px}
.mname span{color:var(--ink-3);font-weight:400;font-size:11px}
.mval{font-size:12.5px;font-weight:500;font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums}
.mval b{font-weight:600}
.mval i{font-style:normal;color:var(--ink-3)}
.bar{height:10px;border-radius:100px;background:var(--surface-3);overflow:hidden;display:flex}
/* 2px surface gap between stacked segments keeps adjacent semesters distinguishable */
.bar .seg{height:100%;display:block;box-sizing:border-box;transition:width .18s ease;
  border-right:2px solid var(--surface)}
.bar .seg:last-child{border-right:0}
/* ungraded ECTS: same semester hue, hatched */
.seg.hatch{background-image:repeating-linear-gradient(135deg,var(--c) 0 3px,transparent 3px 7px);
  background-color:var(--surface-3)}
.seg.thesis{background:var(--surface-3);border-right:0;
  background-image:repeating-linear-gradient(135deg,var(--ink-3) 0 1px,transparent 1px 6px)}
/* semester key under the meters — colour never carries identity alone */
.semlegend{display:flex;flex-wrap:wrap;gap:12px;margin-top:11px;padding-top:10px;
  border-top:1px solid var(--line)}
.skey{display:flex;align-items:center;gap:5px;font-family:"IBM Plex Mono",monospace;
  font-size:10.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.skey i{width:11px;height:11px;border-radius:3px;display:block;flex:none}
.skey i.hatch{background-color:var(--surface-3);
  background-image:repeating-linear-gradient(135deg,var(--c) 0 2px,transparent 2px 5px)}
.bar.over{outline:1.5px solid var(--clash);outline-offset:1px}
.note{font-size:11px;color:var(--ink-3);min-height:15px}
.note.bad{color:var(--clash)}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);margin-top:18px}
.phead{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:13px 15px;border-bottom:1px solid var(--line)}
.phead h2{font-size:15px}
.hint{font-size:11.5px;color:var(--ink-3)}
.pbody{padding:14px 15px}

.tabs{display:flex;gap:5px;flex-wrap:wrap;align-items:center}
.tab{font:inherit;font-size:12.5px;font-weight:500;padding:5px 12px;border-radius:100px;cursor:pointer;
  background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}
.tab[aria-selected="true"]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.tab .cnt{font-family:"IBM Plex Mono",monospace;opacity:.75;margin-left:5px;font-size:11px}

.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding:11px 15px;
  border-bottom:1px solid var(--line);background:var(--surface-2)}
.chip{font:inherit;font-size:11.5px;padding:4px 10px;border-radius:100px;cursor:pointer;
  background:var(--surface);color:var(--ink-2);border:1px solid var(--line)}
.chip[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-ink)}
input[type="search"],input[type="text"],input[type="number"],select,textarea{
  font:inherit;font-size:12.5px;background:var(--surface);color:var(--ink);
  border:1px solid var(--line-2);border-radius:5px;padding:5px 8px}
input[type="search"]{min-width:190px;flex:1}
textarea{width:100%;resize:vertical;min-height:54px}

/* per-semester tally: what is in the plan for the tab you are looking at */
.semsum{display:flex;flex-wrap:wrap;gap:7px;padding:10px 15px;
  background:var(--surface);border-bottom:1px solid var(--line)}
.ssum{display:flex;align-items:baseline;gap:6px;padding:4px 10px;border-radius:6px;
  background:var(--surface-2);border:1px solid var(--line);
  font-size:10.5px;color:var(--ink-3);letter-spacing:.04em;text-transform:uppercase}
.ssum i{width:9px;height:9px;border-radius:2px;flex:none;align-self:center}
.ssum b{font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:600;
  color:var(--ink-2);letter-spacing:.03em}
.ssum em{font-family:"IBM Plex Mono",monospace;font-style:normal;font-size:14px;
  font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;margin-left:2px}
.ssum u{text-decoration:none;color:var(--pass);font-weight:600;margin-left:2px}
.ssum.total{background:var(--accent-soft);border-color:var(--accent)}
.ssum.total b{color:var(--accent-ink)}
.ssum.zero{opacity:.45}

.rows{display:flex;flex-direction:column}
.row{display:grid;grid-template-columns:1fr auto auto auto;gap:4px 12px;align-items:center;
  padding:5px 15px;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row.on{background:var(--surface-2)}
.ti{min-width:0}
.ti .name{font-weight:500;font-size:12.5px;line-height:1.35;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.ti .meta{font-size:10.5px;color:var(--ink-3);line-height:1.35;display:flex;align-items:center;
  gap:6px;flex-wrap:wrap}
.tg b{font-weight:600;color:var(--ink-2)}
/* hairline between one part's times and the next, so VO and PS never read as one run */
.vr{width:1px;height:10px;background:var(--line-2);display:inline-block;flex:none}
/* module group separator in the ledger */
.secdiv{display:flex;align-items:center;gap:9px;padding:5px 15px;
  background:var(--accent-soft);border-top:1px solid var(--accent);border-bottom:1px solid var(--accent)}
.secdiv:first-child{border-top:0}
.secdiv span{font-size:9.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--accent-ink);
  font-weight:600;white-space:nowrap}
.secdiv::after{content:"";flex:1;height:1px;background:var(--accent);opacity:.35}
.badge{font-family:"IBM Plex Mono",monospace;font-size:9px;font-weight:600;padding:1px 4px;border-radius:3px;
  background:var(--surface-3);color:var(--ink-2);letter-spacing:.03em}
.badge.VO{background:var(--accent-soft);color:var(--accent-ink)}
.badge.SE{background:var(--plan-soft);color:var(--plan)}
.badge.irr{background:var(--pend-soft);color:var(--pend)}
.ects{font-size:12.5px;text-align:right;white-space:nowrap;font-weight:500}
.ects small{display:block;font-size:9.5px;color:var(--ink-3);font-weight:400}
/* add / remove */
.addb{font:inherit;font-size:10.5px;font-weight:600;padding:3px 9px;border-radius:100px;cursor:pointer;
  white-space:nowrap;background:var(--surface);color:var(--ink-3);border:1px solid var(--line-2)}
.addb:hover{border-color:var(--accent);color:var(--accent-ink)}
.addb.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-ink)}
.addb.done{background:var(--pass-soft);border-color:var(--pass);color:var(--pass)}
.addb.sm{padding:2px 7px;min-width:26px}
/* grades */
.grades{display:flex;align-items:center;gap:7px;min-width:0}
.gw{display:flex;align-items:center;gap:3px;font-size:9.5px;color:var(--ink-3)}
.gw b{font-family:"IBM Plex Mono",monospace;font-weight:600;letter-spacing:.03em}
.gsel{font-family:"IBM Plex Mono",monospace;font-size:11px;padding:1px 2px 1px 5px;border-radius:4px;
  border:1px solid var(--line-2);background:var(--surface);color:var(--ink-3)}
.gsel.ok{border-color:var(--pass);color:var(--pass);font-weight:600}
.gsel.fail{border-color:var(--clash);color:var(--clash);font-weight:600}

.expand{grid-column:1/-1;display:flex;flex-direction:column;gap:11px;padding:4px 0 10px}
.parts{display:flex;flex-direction:column;gap:6px}
.part{display:grid;grid-template-columns:60px 30px 1fr auto auto auto;gap:9px;align-items:center;
  padding:5px 9px;border-radius:5px;background:var(--surface);border:1px solid var(--line)}
.part .nr{font-size:11px;color:var(--ink-3)}
.part .pslots{font-size:11px;color:var(--ink-2);font-family:"IBM Plex Mono",monospace}
.part .pects{font-size:11.5px;color:var(--ink-2);font-family:"IBM Plex Mono",monospace}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;align-items:start}
.fld{display:flex;flex-direction:column;gap:4px}
.fld label{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
.empty{padding:26px 15px;text-align:center;color:var(--ink-3);font-size:12.5px}

.ttwrap{overflow-x:auto}
.tt{display:grid;grid-template-columns:52px repeat(5,minmax(112px,1fr));min-width:640px}
.tt .hd{font-size:11px;font-weight:600;color:var(--ink-2);text-align:center;padding:0 0 6px}
.tt .gut{position:relative;border-right:1px solid var(--line)}
.tt .col{position:relative;border-right:1px solid var(--line);
  background:repeating-linear-gradient(to bottom,transparent 0 53px,var(--line) 53px 54px)}
.tt .col:last-child{border-right:0}
.tick{position:absolute;right:6px;font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--ink-3);transform:translateY(-50%)}
.blk{position:absolute;left:2px;right:2px;border-radius:4px;padding:3px 4px;overflow:hidden;
  background:var(--accent-soft);border-left:3px solid var(--accent);color:var(--ink)}
.blk.done{background:var(--pass-soft);border-left-color:var(--pass)}
.blk.fail{background:var(--clash-soft);border-left-color:var(--clash)}
/* a slot that does not run every week gets a visibly broken fill */
.blk.cad{background-image:repeating-linear-gradient(135deg,transparent 0 5px,rgba(127,127,127,.22) 5px 10px);
  border-left-style:dashed}
.blk.clash{background:var(--clash-soft);border-left-color:var(--clash);outline:1px solid var(--clash)}
.blk .bt{font-size:10.5px;font-weight:600;line-height:1.25}
.blk .bm{font-family:"IBM Plex Mono",monospace;font-size:9.5px;color:var(--ink-2)}
.noslot{margin-top:11px;font-size:11.5px;color:var(--ink-3)}
.noslot b{color:var(--ink-2);font-weight:500}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:11px;color:var(--ink-3);margin-top:12px}
.legend span{display:flex;align-items:center;gap:5px}
.sw{width:10px;height:10px;border-radius:2px;flex:none;display:block}

.exlist{display:flex;flex-direction:column;gap:9px}
.ex{display:flex;gap:11px;align-items:flex-start;padding:10px 11px;border-radius:6px;
  background:var(--surface-2);border-left:3px solid var(--pend)}
.ex.none{border-left-color:var(--clash)}
.exname{font-weight:600;font-size:12.5px}
.exname span{font-weight:400;color:var(--ink-3)}
.exdates{font-size:11.5px;color:var(--ink-2);margin-top:3px}
.exdates .next{color:var(--pend);font-weight:600}
.exdates .past{text-decoration:line-through;opacity:.5}
.exwarn{font-size:11.5px;color:var(--clash);margin-top:3px}
.exset{display:inline-flex;align-items:center;gap:6px;margin-top:6px;font-size:10.5px;
  letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
.exset input{font:inherit;font-family:"IBM Plex Mono",monospace;font-size:11.5px;text-transform:none;
  letter-spacing:0;padding:3px 6px;border-radius:5px;border:1px solid var(--line-2);
  background:var(--surface);color:var(--ink)}
.exmine{display:inline-block;margin-left:9px;font-size:11.5px;color:var(--pass);font-weight:600}
.avgrow{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}
.avg{display:flex;align-items:baseline;gap:7px;padding:6px 11px;border-radius:6px;
  background:var(--surface-2);border:1px solid var(--line)}
.avg b{font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:600;color:var(--ink-2)}
.avg em{font-family:"IBM Plex Mono",monospace;font-style:normal;font-size:15px;font-weight:600;color:var(--ink)}
.avg i{font-style:normal;font-size:10.5px;color:var(--ink-3)}

.proj{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.pcard{background:var(--surface-2);border-radius:6px;padding:11px 12px}
.plabel{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-weight:600}
.pnum{font-size:21px;font-weight:600;margin-top:3px}
.pfoot{font-size:11px;color:var(--ink-3);margin-top:1px}
.ladder{display:flex;flex-direction:column;gap:7px;margin-top:14px}
.rung{display:grid;grid-template-columns:64px 1fr auto;gap:10px;align-items:center;font-size:12px}
.rname{font-family:"IBM Plex Mono",monospace;font-weight:600;font-size:11.5px}
.rbar{height:8px;border-radius:100px;background:var(--surface-3);overflow:hidden}
.rbar i{display:block;height:100%;background:var(--accent)}
.rval{font-size:11.5px;color:var(--ink-2)}

.addrow{display:flex;gap:7px;flex-wrap:wrap;align-items:flex-end}
button.act{font:inherit;font-size:12px;font-weight:600;padding:6px 13px;border-radius:5px;cursor:pointer;
  background:var(--accent);color:var(--on-accent);border:1px solid var(--accent)}
button.ghost,a.ghost{font:inherit;font-size:12px;padding:6px 11px;border-radius:5px;cursor:pointer;
  background:var(--surface);color:var(--ink-2);border:1px solid var(--line-2)}
a.ghost{display:inline-block;text-decoration:none;line-height:1.5}
a.ghost:hover{border-color:var(--accent);color:var(--accent-ink)}
.switch{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ink-2);cursor:pointer}
footer.fine{margin-top:22px;font-size:11px;color:var(--ink-3);line-height:1.65}
footer.fine p{margin:0 0 8px}
footer.fine a{color:var(--accent-ink)}
footer.fine code{font-family:"IBM Plex Mono",monospace;font-size:10.5px;background:var(--surface-3);padding:1px 4px;border-radius:3px}

@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media (max-width:640px){
  .row{grid-template-columns:1fr auto auto}
  .row .grades{grid-column:1/-1}
  .part{grid-template-columns:60px 30px 1fr;row-gap:6px}
}