:root{
  --sand:#ebe3d5;
  --sand-deep:#e2d8c6;
  --ivory:#fffdf9;
  --ink:#2e2822;
  --ink-soft:#6b6055;
  --ink-faint:#9a8d7e;
  --moss:#7f9134;
  --moss-text:#66762a;
  --moss-soft:#eef1e0;
  --line:rgba(46,40,34,.10);
  --line-strong:rgba(46,40,34,.18);
  --shadow:0 1px 2px rgba(46,40,34,.05), 0 8px 24px rgba(46,40,34,.06);
  --shadow-lift:0 2px 6px rgba(46,40,34,.08), 0 18px 44px rgba(46,40,34,.10);
  --r:11px;
  --amber:#b07d2a;
  --rust:#a8492f;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background-color:var(--sand);
  background-image:
    radial-gradient(1000px 620px at 8% -12%, rgba(255,253,249,.85) 0%, rgba(255,253,249,0) 62%),
    radial-gradient(760px 520px at 102% 4%, rgba(127,145,52,.13) 0%, rgba(127,145,52,0) 58%),
    radial-gradient(900px 700px at 50% 118%, rgba(176,125,42,.10) 0%, rgba(176,125,42,0) 62%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0.18 0 0 0 0 0.16 0 0 0 0 0.13 0 0 0 .045 0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat:no-repeat,no-repeat,no-repeat,repeat;
  background-attachment:fixed,fixed,fixed,fixed;
  color:var(--ink);
  font-family:'Figtree',ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:15px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
.mono{font-family:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}
.hidden{display:none !important}
.view{display:none}
.view.on{display:block}
button{font-family:inherit}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.01em}

.btn{
  border:1px solid var(--line-strong);
  background:var(--ivory);
  color:var(--ink);
  border-radius:999px;
  padding:9px 18px;
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:background .15s,border-color .15s,transform .06s,box-shadow .15s;
}
.btn:hover{background:#fff;border-color:var(--ink-faint)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--moss);border-color:var(--moss);color:#fff}
.btn.primary:hover{background:#728330;border-color:#728330}
.btn.ghost{background:transparent;border-color:var(--line)}
.btn.ghost:hover{background:rgba(255,253,249,.7)}
.btn.sm{padding:6px 13px;font-size:13px}
.btn.block{width:100%;display:block;margin-top:14px;padding:11px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

.lbl{
  display:block;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-faint);font-family:'IBM Plex Mono',monospace;margin:0 0 7px;
}
input[type=email],input[type=text],input[type=password],.select{
  width:100%;padding:11px 14px;border:1px solid var(--line-strong);border-radius:var(--r);
  background:var(--ivory);color:var(--ink);font-family:inherit;font-size:15px;outline:none;
}
input:focus,.select:focus{border-color:var(--moss);box-shadow:0 0 0 3px rgba(127,145,52,.15)}
.select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-faint) 50%),linear-gradient(135deg,var(--ink-faint) 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px;background-repeat:no-repeat}
.fine{font-size:12.5px;color:var(--ink-faint);margin:10px 0 0}
.sub{color:var(--ink-soft);margin:6px 0 0}

.auth-wrap{min-height:100vh;display:none;place-items:center;padding:24px}
.auth-wrap.on{display:grid}
.auth-card{
  width:100%;max-width:404px;background:var(--ivory);border:1px solid var(--line);
  border-radius:18px;padding:38px 34px;box-shadow:var(--shadow-lift);text-align:center;
}
.mark{
  width:52px;height:52px;border-radius:15px;background:var(--moss);color:#fff;
  display:grid;place-items:center;font-family:'IBM Plex Mono',monospace;font-weight:600;
  font-size:17px;letter-spacing:.02em;margin:0 auto 18px;
}
.mark.sm{width:30px;height:30px;border-radius:9px;font-size:12px;margin:0}
.auth-card h1{font-size:24px}
.auth-card .sub{font-size:14px;margin-bottom:26px}
.auth-card form{text-align:left}
.auth-msg{margin:14px 0 0;font-size:14px;color:var(--moss-text);font-weight:500;min-height:20px}
.auth-msg.err{color:var(--rust)}
.link{color:var(--moss-text);font-weight:600;cursor:pointer;text-decoration:none}
.link:hover{text-decoration:underline}

.topbar{
  position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:20px;
  padding:12px 24px;background:rgba(235,227,213,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;cursor:pointer}
.brand-txt{font-weight:600;letter-spacing:-.01em}
.topnav{display:flex;gap:4px;margin-left:8px}
.tab{
  border:0;background:transparent;color:var(--ink-soft);font-size:14px;font-weight:500;
  padding:7px 15px;border-radius:999px;cursor:pointer;transition:background .15s,color .15s;
}
.tab:hover{background:rgba(255,253,249,.75);color:var(--ink)}
.tab.on{background:var(--ivory);color:var(--ink);box-shadow:var(--shadow)}
.who{margin-left:auto;display:flex;align-items:center;gap:12px}
.who .mono{font-size:12px;color:var(--ink-faint)}

/* ---------- pomodoro / focus timer (lives in the sticky topbar) ---------- */
.pom{position:relative;flex:0 0 auto}
.pom-btn{display:flex;align-items:center;gap:7px;white-space:nowrap}
.pom-label{font-size:12.5px;font-weight:600;letter-spacing:.02em}
.pom-dot{
  width:7px;height:7px;border-radius:50%;background:var(--ink-faint);
  flex:0 0 auto;transition:background .2s;
}
.pom.running .pom-dot{background:var(--moss);animation:pom-pulse 2s ease-in-out infinite}
.pom.paused  .pom-dot{background:var(--amber)}
.pom.done    .pom-dot{background:var(--rust)}
.pom.running .pom-btn,.pom.paused .pom-btn{background:var(--ivory);border-color:var(--line-strong)}
.pom.running .pom-label{color:var(--moss-text)}
.pom.paused  .pom-label{color:var(--amber)}
@keyframes pom-pulse{0%,100%{opacity:1}50%{opacity:.35}}

.pom-menu{
  position:absolute;top:calc(100% + 9px);right:0;z-index:60;width:268px;
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow-lift);padding:15px 16px 14px;
}
.pom-menu.hidden{display:none}
.pom-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:10px}
.pom-eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.11em;
  text-transform:uppercase;color:var(--ink-faint);font-weight:600;
}
.pom-big{font-size:25px;font-weight:600;color:var(--ink);letter-spacing:-.02em;line-height:1}
.pom.running .pom-big{color:var(--moss-text)}
.pom.paused  .pom-big{color:var(--amber)}
.pom-ring{height:5px;background:var(--sand-deep);border-radius:999px;overflow:hidden;margin-bottom:13px}
.pom-ring i{display:block;height:100%;width:0;background:var(--moss);border-radius:999px;transition:width .3s linear}
.pom-ctrls{display:flex;gap:6px;margin-bottom:13px}
.pom-ctrls:empty{display:none}
.pom-ctrls .btn{flex:1;padding:6px 10px;font-size:12.5px}
.pom-sub{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-faint);font-weight:600;margin-bottom:8px;display:block;
}
.pom-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:5px;
  max-height:186px;overflow-y:auto;padding-right:2px;
}
.pom-opt{
  border:1px solid var(--line);background:var(--ivory);color:var(--ink-soft);
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;font-weight:500;
  border-radius:8px;padding:7px 0;cursor:pointer;text-align:center;
  transition:background .13s,border-color .13s,color .13s;
}
.pom-opt:hover{background:var(--moss-soft);border-color:var(--moss);color:var(--moss-text)}
.pom-opt.on{background:var(--moss);border-color:var(--moss);color:#fff}

@media (max-width:620px){
  .pom-label{display:none}
  .pom-btn{padding:6px 9px;gap:0}
  .pom.running .pom-label,.pom.paused .pom-label{display:inline}
  .pom-menu{width:250px;right:-46px}
}

.page{max-width:1060px;margin:0 auto;padding:30px 24px 80px}
.h{font-size:22px;margin-bottom:4px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--moss-text);cursor:pointer;text-decoration:none;font-weight:500}
.crumbs a:hover{text-decoration:underline}
.crumbs span.sep{color:var(--ink-faint)}

.card{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.card.pad{padding:22px}

.grid{display:grid;gap:14px}
.grid.c3{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.grid.c2{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}

.course-card{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:20px;
  cursor:pointer;box-shadow:var(--shadow);transition:transform .12s,box-shadow .15s,border-color .15s;
}
.course-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:var(--line-strong)}
.course-code{
  font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;letter-spacing:.1em;
  color:var(--moss-text);background:var(--moss-soft);padding:3px 9px;border-radius:999px;display:inline-block;
}
.course-card h3{font-size:18px;margin:12px 0 4px}
.course-meta{font-size:13px;color:var(--ink-faint)}

.exam-card{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;cursor:pointer;box-shadow:var(--shadow);transition:transform .12s,box-shadow .15s}
.exam-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.exam-card h3{font-size:16px}
.exam-card .course-meta{margin-top:3px}

.lec{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;margin-bottom:10px;box-shadow:var(--shadow)}
.lec-head{display:flex;align-items:baseline;gap:12px}
.lec-n{font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:600;color:var(--ink-faint);letter-spacing:.06em}
.lec-title{font-weight:600;font-size:15.5px}
.lec-title.untitled{color:var(--ink-faint);font-weight:400;font-style:italic}
.lec-items{display:flex;gap:9px;margin-top:13px;flex-wrap:wrap}
.item{
  border:1px solid var(--line-strong);background:var(--ivory);border-radius:999px;
  padding:7px 15px;font-size:13.5px;font-weight:500;cursor:pointer;color:var(--ink);
  display:inline-flex;align-items:center;gap:7px;transition:background .15s,border-color .15s;
}
.item:hover:not(.off){background:var(--moss-soft);border-color:var(--moss)}
.item.off{opacity:.42;cursor:not-allowed}
.item .count{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--ink-faint)}

.runner{display:none;grid-template-columns:288px 1fr;min-height:calc(100vh - 55px)}
.runner.on{display:grid}
.navigator{
  background:var(--ivory);border-right:1px solid var(--line);padding:20px;
  position:sticky;top:55px;height:calc(100vh - 55px);overflow-y:auto;
}
.nav-head{margin-bottom:20px}
.nav-title{font-weight:600;font-size:15px;margin-top:12px;line-height:1.35}
.filters{padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.filters .lbl{margin-top:16px}
.filters .lbl:first-child{margin-top:0}
.chiprow{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:4px}
.chip{
  border:1px solid var(--line-strong);background:transparent;border-radius:999px;
  padding:5px 12px;font-size:12.5px;font-weight:500;cursor:pointer;color:var(--ink-soft);transition:all .15s;
}
.chip:hover{border-color:var(--moss);color:var(--ink)}
.chip.on{background:var(--moss);border-color:var(--moss);color:#fff}
#filter-status{margin-top:14px}

.score{padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.score-row{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-soft);padding:2px 0}
.score-row b{color:var(--ink);font-size:13px}
.bar{height:5px;background:var(--sand-deep);border-radius:999px;margin-top:10px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--moss);border-radius:999px;transition:width .3s}

.dots{display:grid;grid-template-columns:repeat(auto-fill,minmax(31px,1fr));gap:7px}
.dot{
  width:31px;height:31px;border-radius:50%;border:1px solid var(--line-strong);background:transparent;
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;font-weight:500;color:var(--ink-soft);
  cursor:pointer;display:grid;place-items:center;position:relative;transition:all .12s;
}
.dot:hover{border-color:var(--moss)}
.dot.answered{background:var(--sand-deep);color:var(--ink);border-color:transparent}
.dot.correct{background:var(--moss);border-color:var(--moss);color:#fff}
.dot.wrong{background:var(--rust);border-color:var(--rust);color:#fff}
.dot.cur{outline:2px solid var(--ink);outline-offset:2px}
.dot.flag::after{
  content:"";position:absolute;top:-1px;right:-1px;width:8px;height:8px;border-radius:50%;
  background:var(--amber);border:1.5px solid var(--ivory);
}

.stage{padding:26px 34px 80px;max-width:880px;width:100%;min-width:0}
.stage-head{display:flex;align-items:center;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.qmeta{display:flex;align-items:center;gap:10px}
.qnum{font-size:13px;color:var(--ink-faint);font-weight:500}
.pill{font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;letter-spacing:.06em;padding:3px 10px;border-radius:999px;background:var(--moss-soft);color:var(--moss-text)}
.stage-tools{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.tool-short{display:none}
.btn.flagged{background:#f6ecd8;border-color:var(--amber);color:var(--amber)}

.qcard{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:28px 30px;box-shadow:var(--shadow)}
.qcard figure{margin:0 0 20px;text-align:center}
.qcard figure img{max-width:100%;border-radius:8px;border:1px solid var(--line)}
.stem{font-size:16px;line-height:1.65;margin:0 0 22px}
.choices{display:flex;flex-direction:column;gap:9px}
.choice{
  display:flex;align-items:flex-start;gap:13px;padding:13px 15px;border:1px solid var(--line-strong);
  border-radius:var(--r);background:var(--ivory);cursor:pointer;text-align:left;font-size:15px;
  line-height:1.5;color:var(--ink);transition:border-color .15s,background .15s;width:100%;
}
.choice:hover{border-color:var(--moss);background:#fdfcf6}
.choice .ltr{
  flex:0 0 25px;height:25px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:600;
  color:var(--ink-soft);margin-top:1px;transition:all .15s;
}
.choice.sel{border-color:var(--moss);background:var(--moss-soft)}
.choice.sel .ltr{background:var(--moss);border-color:var(--moss);color:#fff}
.choice.struck .txt{text-decoration:line-through;opacity:.42}
.choice.struck .ltr{opacity:.42}
.choice.is-correct{border-color:var(--moss);background:var(--moss-soft)}
.choice.is-wrong{border-color:var(--rust);background:#faeeea}
.choice .txt{flex:1}
.eye{
  flex:0 0 auto;border:0;background:transparent;cursor:pointer;font-size:14px;opacity:.32;
  padding:2px 4px;border-radius:6px;line-height:1;color:var(--ink);
}
.eye:hover{opacity:.85;background:var(--sand)}
.eye.on{opacity:.85}

.selrow{display:flex;align-items:center;gap:16px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.selected{font-size:14px;color:var(--ink-soft)}
.selected b{color:var(--ink)}
.selrow .btn{margin-left:auto}

.explain{margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}
.ex-verdict{font-weight:600;font-size:15px;margin-bottom:14px}
.ex-verdict.good{color:var(--moss-text)}
.ex-verdict.bad{color:var(--rust)}
.ex-block{margin-bottom:16px;font-size:15px;line-height:1.65}
.ex-block h4{font-size:11px;font-family:'IBM Plex Mono',monospace;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 6px;font-weight:600}
.why-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.why-list li{font-size:14px;line-height:1.55;color:var(--ink-soft);padding-left:26px;position:relative}
.why-list li b{position:absolute;left:0;top:0;font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--ink-faint)}
.lo-cite{font-size:13px;color:var(--ink-faint);font-style:italic;border-left:2px solid var(--sand-deep);padding-left:12px}
.empty{text-align:center;padding:70px 20px;color:var(--ink-faint)}

.doc{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:34px 38px;box-shadow:var(--shadow);max-width:800px}
.doc h2{font-size:22px}
.doc .doc-sub{color:var(--ink-soft);margin:6px 0 26px}
.doc h3{font-size:16px;margin:26px 0 8px}
.doc p{margin:0 0 13px;line-height:1.68}
.doc ul{margin:0 0 15px;padding-left:20px}
.doc li{margin-bottom:6px;line-height:1.6}
.pearl{background:var(--moss-soft);border-left:3px solid var(--moss);border-radius:0 8px 8px 0;padding:13px 17px;margin:0 0 16px;font-size:14.5px}
.pearl b{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--moss-text);display:block;margin-bottom:4px}
table{width:100%;border-collapse:collapse;margin:0 0 8px;font-size:14px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}
th{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);font-weight:600}
caption{caption-side:bottom;font-size:12.5px;color:var(--ink-faint);padding-top:8px;text-align:left}

.tree-node{margin-left:0}
.tree-q{background:var(--ivory);border:1px solid var(--line-strong);border-radius:var(--r);padding:14px 17px;font-weight:500;margin-bottom:10px}
.tree-branches{border-left:2px solid var(--sand-deep);margin-left:14px;padding-left:18px}
.tree-label{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--moss-text);margin:14px 0 6px}
.tree-dx{background:var(--moss-soft);border:1px solid rgba(127,145,52,.3);border-radius:var(--r);padding:13px 17px;margin-bottom:8px}
.tree-dx b{display:block;margin-bottom:3px}
.tree-dx span{font-size:14px;color:var(--ink-soft)}

.prog-grid{display:grid;gap:16px;margin-top:22px}
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px}
.stat{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;box-shadow:var(--shadow)}
.stat .k{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);font-weight:600}
.stat .v{font-family:'IBM Plex Mono',monospace;font-size:27px;font-weight:600;margin-top:6px;line-height:1}
.tablecard{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:var(--shadow)}
.tablecard h3{font-size:15px;margin-bottom:14px}
.minibar{height:6px;background:var(--sand-deep);border-radius:999px;overflow:hidden;width:110px;display:inline-block;vertical-align:middle}
.minibar i{display:block;height:100%;background:var(--moss);border-radius:999px}

.uplist{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.uprow{display:flex;align-items:center;gap:10px;font-size:13px;padding:9px 12px;background:var(--sand);border-radius:8px}
.uprow .mono{font-size:11.5px;color:var(--ink-soft);word-break:break-all;flex:1}
.upnote{margin:0;font-size:11.5px;color:var(--ink-faint);white-space:nowrap;flex:0 0 auto}

/* ---------- retroactive image compressor (admin) ---------- */
.cmp-tools{display:flex;gap:8px;flex-wrap:wrap}
.btn[disabled]:hover{background:var(--ivory);border-color:var(--line-strong)}
.btn.ghost[disabled]:hover{background:transparent;border-color:var(--line)}
.btn.primary[disabled]:hover{background:var(--moss);border-color:var(--moss)}
.cmp-log-row{display:flex;align-items:baseline;gap:10px;font-size:13px;padding:8px 12px;background:var(--sand);border-radius:8px;border-left:3px solid var(--sand-deep)}
.cmp-log-row.ok{border-left-color:var(--moss)}
.cmp-log-row.skip{border-left-color:var(--sand-deep)}
.cmp-log-row.dry{border-left-color:var(--amber)}
.cmp-log-row.dry .note{color:var(--amber)}
.cmp-log-row.bad{border-left-color:var(--rust)}
.cmp-log-row .mono{font-size:11.5px;color:var(--ink-soft);word-break:break-all;flex:1}
.cmp-log-row .note{font-size:11.5px;color:var(--ink-faint);white-space:nowrap}
.cmp-log-row.bad .note{color:var(--rust)}
@media (max-width:560px){
  .cmp-log-row{flex-direction:column;gap:3px}
  .cmp-log-row .note{white-space:normal}
  .uprow{flex-wrap:wrap}
  .upnote{flex:1 1 100%}
}

/* ---------- top strip: calendar + announcements ---------- */
.topstrip{
  max-width:1060px;margin:0 auto;padding:22px 24px 0;
  display:grid;grid-template-columns:300px 1fr;gap:14px;align-items:stretch;
}
.topstrip.hidden{display:none}
.cal,.ann{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);padding:18px 20px;
}
.cal-top{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:14px}
.cal-day{font-size:15px;font-weight:600}
.cal-date{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--ink-faint);letter-spacing:.05em;margin-top:1px}
.cal-clock{
  font-family:'IBM Plex Mono',monospace;font-size:19px;font-weight:600;
  color:var(--moss-text);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.cal-week{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;cursor:pointer}
.cal-cell{text-align:center;padding:6px 0 7px;border-radius:9px;border:1px solid transparent}
.cal-cell .dow{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-faint);display:block;margin-bottom:3px;
}
.cal-cell .dnum{font-family:'IBM Plex Mono',monospace;font-size:14px;font-weight:500;color:var(--ink-soft)}
.cal-cell.today{background:var(--moss);border-color:var(--moss)}
.cal-cell.today .dow{color:rgba(255,255,255,.8)}
.cal-cell.today .dnum{color:#fff;font-weight:600}
.cal-cell.past .dnum{color:var(--ink-faint);opacity:.6}
.cal-next{
  margin-top:13px;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.45;
}
.cal-label{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--moss-text);background:var(--moss-soft);border-radius:999px;padding:2px 8px;margin-right:7px;
}
.cal-next b{font-weight:600}
.cal-when{display:block;font-size:12px;color:var(--ink-faint);margin-top:2px}
.cal-none{font-size:12.5px;color:var(--ink-faint)}

.ann-head{
  display:flex;align-items:center;gap:9px;margin-bottom:12px;
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-faint);font-weight:600;
}
.ann-head .link{font-size:10.5px;margin-left:auto;letter-spacing:.06em}
.ann-list{display:flex;flex-direction:column;gap:12px;max-height:170px;overflow-y:auto}
.ann-item{border-left:3px solid var(--moss);padding-left:13px}
.ann-item h4{font-size:14.5px;font-weight:600;margin:0 0 3px}
.ann-item p{margin:0;font-size:13.5px;line-height:1.55;color:var(--ink-soft)}
.ann-item time{
  font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-faint);display:block;margin-top:5px;
}
.ann-empty{font-size:13.5px;color:var(--ink-faint);margin:0}
.annrow{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;padding:11px 13px;background:var(--sand);border-radius:9px}
.annrow div{flex:1}
.annrow b{display:block;margin-bottom:2px}
.annrow span{color:var(--ink-soft);font-size:13px}
.ann-ttl{
  flex:0 0 auto;margin-top:1px;padding:3px 9px;border-radius:999px;white-space:nowrap;
  border:1px solid var(--line);background:var(--ivory);
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;font-weight:600;
  letter-spacing:.07em;text-transform:uppercase;color:var(--ink-faint);
}
.ann-ttl.soon{color:var(--amber);border-color:rgba(176,125,42,.35);background:#f6ecd8}

@media (max-width:820px){
  .topstrip{grid-template-columns:1fr;padding:16px 14px 0}
  .ann-list{max-height:none}
}

/* ---------- to-do list (personal, one list per date) ---------- */
.todostrip{max-width:1060px;margin:14px auto 0;padding:0 24px}
.todostrip.hidden{display:none}
.todo{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);overflow:hidden;
}
.todo-head{
  display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap;
  padding:15px 20px 13px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg, rgba(235,227,213,.42), rgba(235,227,213,0));
}
.todo-eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-faint);font-weight:600;display:block;margin-bottom:4px;
}
.todo-datebar{display:flex;align-items:center;gap:3px;margin-left:-7px}
.todo-arrow{
  width:28px;height:28px;flex:0 0 auto;border-radius:8px;border:1px solid transparent;background:none;
  color:var(--ink-faint);cursor:pointer;font-size:16px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background .15s,color .15s,border-color .15s;
}
.todo-arrow:hover{background:var(--sand);color:var(--ink);border-color:var(--line)}
.todo-date{
  font-size:19px;font-weight:600;letter-spacing:-.01em;color:var(--ink);
  background:none;border:1px solid transparent;border-radius:8px;padding:2px 9px;cursor:pointer;
  font-family:inherit;transition:background .15s,border-color .15s;white-space:nowrap;
}
.todo-date:hover{background:var(--sand);border-color:var(--line)}
.todo-dateinput{
  font-family:'IBM Plex Mono',monospace;font-size:15px;font-weight:500;color:var(--ink);
  border:1px solid var(--moss);border-radius:8px;padding:4px 9px;background:#fff;
}
.todo-today{
  margin-left:5px;border:none;background:var(--moss-soft);color:var(--moss-text);cursor:pointer;
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;border-radius:999px;padding:4px 10px;
}
.todo-today:hover{background:#e3e8cd}
.todo-count{margin-left:auto;display:flex;align-items:center;gap:11px}
.todo-meter{width:96px;height:6px;background:var(--sand-deep);border-radius:999px;overflow:hidden}
.todo-meter i{display:block;height:100%;background:var(--moss);border-radius:999px;transition:width .25s}
.todo-tally{
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--ink-faint);
  letter-spacing:.04em;white-space:nowrap;
}

.todo-list{list-style:none;margin:0;padding:0}
.todo-row{display:flex;align-items:flex-start;border-bottom:1px solid var(--line);transition:background .12s}
.todo-row:last-child{border-bottom:none}
.todo-row:hover{background:rgba(235,227,213,.30)}
.todo-row.dragging{opacity:.4}
.todo-row.dropinto{box-shadow:inset 0 2px 0 var(--moss)}
.todo-row.dropinto-after{box-shadow:inset 0 -2px 0 var(--moss)}
.todo-num{
  flex:0 0 46px;align-self:stretch;display:flex;align-items:center;justify-content:center;
  font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:500;
  color:var(--ink-faint);background:rgba(235,227,213,.45);border-right:1px solid var(--line);
  cursor:grab;user-select:none;position:relative;
}
.todo-num:active{cursor:grabbing}
.todo-num .n{transition:opacity .15s}
.todo-num .grip{position:absolute;opacity:0;transition:opacity .15s;font-size:13px;color:var(--ink-faint)}
.todo-row:hover .todo-num .n{opacity:0}
.todo-row:hover .todo-num .grip{opacity:1}
.todo-check{
  flex:0 0 auto;margin:13px 0 0 14px;width:18px;height:18px;border-radius:5px;
  border:1.5px solid var(--line-strong);background:var(--ivory);cursor:pointer;padding:0;
  display:flex;align-items:center;justify-content:center;transition:background .15s,border-color .15s;
}
.todo-check:hover{border-color:var(--moss)}
.todo-check svg{width:11px;height:11px;opacity:0;transition:opacity .15s}
.todo-row.done .todo-check{background:var(--moss);border-color:var(--moss)}
.todo-row.done .todo-check svg{opacity:1}
.todo-text{
  flex:1;min-width:0;padding:11px 12px 12px;font-size:14.5px;line-height:1.5;
  border:1px solid transparent;border-radius:8px;margin:3px 0;cursor:text;
  transition:background .15s,border-color .15s;word-break:break-word;
}
.todo-text:hover{background:var(--sand)}
.todo-text:focus{outline:none;background:#fff;border-color:var(--moss);box-shadow:0 0 0 3px rgba(127,145,52,.12)}
.todo-text:empty::before{content:attr(data-ph);color:var(--ink-faint)}
.todo-row.done .todo-text{color:var(--ink-faint);text-decoration:line-through;text-decoration-color:rgba(154,141,126,.6)}
.todo-acts{flex:0 0 auto;display:flex;gap:2px;margin:9px 10px 0 4px;opacity:0;transition:opacity .15s}
.todo-row:hover .todo-acts,.todo-row:focus-within .todo-acts{opacity:1}
.todo-act{
  width:27px;height:27px;border-radius:7px;border:1px solid transparent;background:none;
  color:var(--ink-faint);cursor:pointer;font-size:15px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background .15s,color .15s,border-color .15s;
}
.todo-act.plus:hover{background:var(--moss-soft);color:var(--moss-text);border-color:rgba(127,145,52,.3)}
.todo-act.kill:hover{background:#f7e7e2;color:var(--rust);border-color:rgba(168,73,47,.25)}
.todo-foot{display:flex;align-items:center;gap:10px;padding:12px 20px 14px;flex-wrap:wrap}
.todo-add{
  border:1px dashed var(--line-strong);background:transparent;color:var(--ink-soft);
  border-radius:999px;padding:7px 15px;font-size:13.5px;font-weight:500;cursor:pointer;
  transition:background .15s,border-color .15s,color .15s;
}
.todo-add:hover{background:var(--moss-soft);border-color:var(--moss);color:var(--moss-text);border-style:solid}
.todo-saved{
  margin-left:auto;font-family:'IBM Plex Mono',monospace;font-size:10.5px;
  letter-spacing:.07em;text-transform:uppercase;color:var(--ink-faint);
}
.todo-saved.on{color:var(--moss-text)}
.todo-saved.bad{color:var(--rust)}
.todo-empty{padding:24px 20px;color:var(--ink-faint);font-size:13.5px}
@media (max-width:820px){
  .todostrip{padding:0 14px}
  .todo-count{margin-left:0;width:100%}
  .todo-acts{opacity:1}
}

/* ---------- schedule ---------- */
.sc-head{display:flex;align-items:flex-end;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.sc-head .h{margin-bottom:0}
.sc-nav{margin-left:auto;display:flex;gap:6px}
.sc-banners{display:flex;flex-direction:column;gap:5px;margin-bottom:10px}
.sc-banner{
  border-radius:7px;padding:5px 12px;font-size:12.5px;font-weight:500;text-align:center;
  background:var(--moss-soft);color:var(--moss-text);
}
.sc-banner.pink{background:#f8e9ea;color:#a1495a}
.sc-banner.blue{background:#e7eef6;color:#4a6785}

.sc-grid{background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.sc-daynames{display:grid;grid-template-columns:52px repeat(7,1fr);border-bottom:1px solid var(--line-strong);background:var(--ivory)}
.sc-corner{border-right:1px solid var(--line)}
.sc-dayname{text-align:center;padding:9px 2px;border-right:1px solid var(--line)}
.sc-dayname:last-child{border-right:0}
.sc-dayname b{display:block;font-family:'IBM Plex Mono',monospace;font-size:16px;font-weight:600}
.sc-dayname span{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-faint);
}
.sc-dayname.is-today b{color:var(--moss-text)}
.sc-dayname.is-today{background:var(--moss-soft)}

.sc-body{display:grid;grid-template-columns:52px 1fr;max-height:640px;overflow-y:auto}
.sc-hours,.sc-cols{padding-top:9px}
.sc-hours{border-right:1px solid var(--line)}
.sc-hour{height:58px;position:relative}
.sc-hour span{
  position:absolute;top:-7px;right:7px;font-family:'IBM Plex Mono',monospace;
  font-size:9.5px;color:var(--ink-faint);letter-spacing:.04em;
}
.sc-cols{display:grid;grid-template-columns:repeat(7,1fr);position:relative;
  background-image:repeating-linear-gradient(to bottom,var(--line) 0 1px,transparent 1px 58px)}
.sc-col{border-right:1px solid var(--line);position:relative;min-height:696px}
.sc-col:last-child{border-right:0}
.sc-col.is-today{background:rgba(127,145,52,.05)}
.sc-ev{
  position:absolute;left:3px;right:3px;border-radius:6px;padding:5px 7px;overflow:hidden;
  font-size:11.5px;line-height:1.3;border-left:3px solid;
}
.sc-ev b{display:block;font-weight:600;font-size:11.5px;margin-bottom:2px}
.sc-ev span{color:var(--ink-soft);font-size:10.5px}
.sc-ev.msk{background:#fbf1de;border-color:#c9932f;color:#6b4f13}
.sc-ev.heme{background:#f8e7e2;border-color:#b8674a;color:#6f3a29}
.sc-ev.neuro{background:#e2f0f2;border-color:#4d939c;color:#2c565b}
.sc-ev.epc{background:#e8f1e2;border-color:#6f9450;color:#3c5530}
.sc-ev.opp{background:#efe8f4;border-color:#8267a0;color:#4a3a5c}
.sc-ev.lunch{background:#e7eef6;border-color:#6f8fb5;color:#3f5872}
.sc-ev.grey{background:var(--sand);border-color:var(--ink-faint);color:var(--ink-soft)}

.sc-now{position:absolute;left:0;right:0;height:0;border-top:2px solid var(--rust);z-index:5;pointer-events:none}
.sc-now i{
  position:absolute;left:var(--dot,0);top:-5px;width:9px;height:9px;border-radius:50%;
  background:var(--rust);margin-left:-4px;
}

@media (max-width:820px){
  .sc-grid{overflow-x:auto}
  .sc-body{max-height:520px;min-width:640px}
  .sc-daynames{min-width:640px}
}

/* ---------- flashcards ---------- */
.due-pill{
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;font-weight:600;letter-spacing:.05em;
  background:var(--moss);color:#fff;border-radius:999px;padding:2px 8px;margin-left:2px;
}
.fc-stage{max-width:720px;margin:0 auto}
.fc-counts{display:flex;gap:10px;justify-content:center;margin-bottom:20px;flex-wrap:wrap}
.fc-counts span{
  font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.07em;text-transform:uppercase;
  color:var(--ink-faint);background:var(--ivory);border:1px solid var(--line);
  border-radius:999px;padding:5px 13px;
}
.fc-counts span b{color:var(--ink);font-weight:600}
.fcard{
  background:var(--ivory);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-lift);padding:44px 38px;text-align:center;min-height:250px;
  display:flex;flex-direction:column;justify-content:center;gap:24px;
}
.fc-front{font-size:20px;line-height:1.5;font-weight:500}
.fc-back{
  font-size:16.5px;line-height:1.6;color:var(--ink-soft);
  border-top:1px solid var(--line);padding-top:24px;text-align:left;
}
.fc-tags{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.fc-tags span{
  font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.07em;text-transform:uppercase;
  color:var(--moss-text);background:var(--moss-soft);border-radius:999px;padding:2px 9px;
}
.fc-tags span.leech{color:#fff;background:var(--amber)}
.fc-actions{display:flex;gap:9px;justify-content:center;margin-top:22px;flex-wrap:wrap}
.grade{
  border:1px solid var(--line-strong);background:var(--ivory);border-radius:999px;
  padding:11px 20px;font-size:14px;font-weight:600;cursor:pointer;color:var(--ink);
  display:flex;flex-direction:column;align-items:center;gap:2px;min-width:96px;
  transition:background .15s,border-color .15s,transform .06s;
}
.grade:hover{transform:translateY(-1px)}
.grade small{font-family:'IBM Plex Mono',monospace;font-size:10px;font-weight:500;color:var(--ink-faint);letter-spacing:.04em}
.grade.again:hover{border-color:var(--rust);background:#faeeea}
.grade.hard:hover{border-color:var(--amber);background:#f6ecd8}
.grade.good:hover{border-color:var(--moss);background:var(--moss-soft)}
.grade.easy:hover{border-color:var(--moss);background:var(--moss-soft)}
.fc-hint{text-align:center;font-size:12.5px;color:var(--ink-faint);margin-top:16px}

/* ---------- review space ---------- */
.rev-head{display:flex;align-items:flex-end;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.rev-head .h{margin-bottom:0}
.rev-head .btn{margin-left:auto}
.mod-card{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:20px;
  cursor:pointer;box-shadow:var(--shadow);transition:transform .12s,box-shadow .15s,border-color .15s;
}
.mod-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:var(--line-strong)}
.mod-card h3{font-size:17px}
.mod-card .course-meta{margin-top:2px}
.folder-icon{
  width:34px;height:26px;border-radius:4px 7px 7px 7px;background:var(--moss-soft);
  border:1px solid rgba(127,145,52,.35);position:relative;margin-bottom:10px;
}
.folder-icon::before{
  content:"";position:absolute;top:-5px;left:0;width:15px;height:5px;border-radius:3px 3px 0 0;
  background:var(--moss-soft);border:1px solid rgba(127,145,52,.35);border-bottom:0;
}
.rcard{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);
  padding:20px 22px;margin-bottom:12px;box-shadow:var(--shadow);
}
.rcard-top{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px}
.rcard-top h4{font-size:15.5px;font-weight:600;margin:0;flex:1;line-height:1.4}
.rcard-src{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:5px;display:block}
.rcard section{margin-bottom:13px}
.rcard section:last-child{margin-bottom:0}
.rcard h5{
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink-faint);font-weight:600;margin:0 0 5px;
}
.rcard p{margin:0;font-size:14.5px;line-height:1.6}
.rcard .ans{
  background:var(--moss-soft);border-left:3px solid var(--moss);border-radius:0 8px 8px 0;
  padding:11px 15px;font-size:14.5px;font-weight:500;
}
.rcard .note{background:#f6ecd8;border-left:3px solid var(--amber);border-radius:0 8px 8px 0;padding:11px 15px;font-size:14px}
.icon-btn{
  border:0;background:transparent;color:var(--ink-faint);cursor:pointer;font-size:17px;
  line-height:1;padding:3px 7px;border-radius:6px;flex:0 0 auto;
}
.icon-btn:hover{background:var(--sand);color:var(--rust)}

textarea{
  width:100%;padding:11px 14px;border:1px solid var(--line-strong);border-radius:var(--r);
  background:var(--ivory);color:var(--ink);font-family:inherit;font-size:15px;outline:none;resize:vertical;
}
textarea:focus{border-color:var(--moss);box-shadow:0 0 0 3px rgba(127,145,52,.15)}

.modal{
  position:fixed;inset:0;z-index:90;display:grid;place-items:center;padding:20px;
  background:rgba(46,40,34,.34);backdrop-filter:blur(3px);
}
.modal-card{
  width:100%;max-width:460px;background:var(--ivory);border-radius:16px;padding:28px 26px;
  box-shadow:var(--shadow-lift);max-height:90vh;overflow-y:auto;
}
.modal-card h3{font-size:19px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:22px}
.linkrow{display:flex;justify-content:flex-end;margin-top:6px}
.linkrow .link{font-size:12.5px}

.credit{
  text-align:center;padding:26px 20px 34px;font-size:12.5px;color:var(--ink-faint);
  border-top:1px solid var(--line);margin-top:26px;line-height:1.6;
}
.credit b{font-weight:600;color:var(--ink-soft)}
.credit .mono{font-size:11px;letter-spacing:.06em;text-transform:uppercase;display:block;margin-top:3px}
.auth-card .credit{border-top:0;margin-top:18px;padding:0}

.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);
  background:var(--ink);color:var(--ivory);padding:11px 20px;border-radius:999px;font-size:14px;
  box-shadow:var(--shadow-lift);transition:transform .25s;z-index:80;pointer-events:none;
}
.toast.on{transform:translateX(-50%) translateY(0)}

@media (max-width:860px){
  .runner.on{grid-template-columns:1fr}
  .navigator{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .stage{padding:20px 18px 70px}
  .qcard{padding:22px 20px}
  .who .mono{display:none}
}

/* ---------- phones ---------- */
@media (max-width:620px){
  .topbar{gap:8px;padding:10px 12px;overflow:hidden}
  .brand{flex:0 0 auto}
  .brand-txt{display:none}
  .topnav{margin-left:0;gap:2px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .topnav::-webkit-scrollbar{display:none}
  .tab{padding:6px 10px;font-size:12.5px;flex:0 0 auto;white-space:nowrap}
  .who{gap:6px;flex:0 0 auto}
  .modal-card{padding:22px 18px}

  .page{padding:20px 14px 70px}
  .doc{padding:22px 18px}
  .doc h2{font-size:20px}
  .stage{padding:16px 14px 70px}
  .qcard{padding:18px 16px}
  .stem{font-size:15.5px}
  .auth-card{padding:30px 22px}
  .rcard{padding:18px 16px}
  .fcard{padding:32px 20px;min-height:200px}
  .fc-front{font-size:18px}
  .grade{min-width:0;flex:1 1 40%;padding:10px 12px}

  .stage-head{flex-wrap:wrap;gap:10px}
  .stage-tools{margin-left:0;width:100%;flex-wrap:wrap}
  .stage-tools .btn{flex:1 1 auto;white-space:nowrap;padding:6px 11px}
  .tool-long{display:none}
  .tool-short{display:inline}
  .selrow{flex-wrap:wrap;gap:12px}
  .selrow .btn{margin-left:0;width:100%}
  .rev-head .btn{margin-left:0;width:100%}

  .doc table{display:block}
  .doc thead{display:none}
  .doc tbody,.doc tr,.doc td{display:block;width:100%}
  .doc tr{padding:12px 0;border-bottom:1px solid var(--line)}
  .doc tr:last-child{border-bottom:0}
  .doc td{border:0;padding:0}
  .doc td:first-child{
    font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;
    letter-spacing:.08em;text-transform:uppercase;color:var(--moss-text);margin-bottom:5px;
  }
  .doc caption{padding-bottom:10px;padding-top:0}
}

/* ---------- feedback ---------- */
.badge{
  display:inline-grid;place-items:center;min-width:17px;height:17px;padding:0 5px;margin-left:6px;
  border-radius:999px;background:var(--rust);color:#fff;font-family:'IBM Plex Mono',monospace;
  font-size:10px;font-weight:600;line-height:1;vertical-align:1px;
}
.fb-short{display:none}
.fb-btn{white-space:nowrap}

.credit-fb{display:block;margin-top:9px}
.credit-fb .link{font-size:12.5px}

.checkrow{
  display:flex;align-items:flex-start;gap:10px;margin-top:18px;cursor:pointer;
  font-size:13.5px;line-height:1.5;color:var(--ink-soft);
}
.checkrow input{
  appearance:none;flex:0 0 18px;width:18px;height:18px;margin:1px 0 0;border-radius:5px;
  border:1px solid var(--line-strong);background:var(--ivory);cursor:pointer;position:relative;
  transition:background .15s,border-color .15s;
}
.checkrow input:checked{background:var(--moss);border-color:var(--moss)}
.checkrow input:checked::after{
  content:"✓";position:absolute;inset:0;display:grid;place-items:center;
  color:#fff;font-size:12px;font-weight:700;line-height:1;
}
.checkrow input:focus-visible{box-shadow:0 0 0 3px rgba(127,145,52,.15);outline:none}
.checkrow em{font-style:normal;color:var(--ink-faint)}

.fb-context{
  background:var(--sand);border-radius:9px;padding:11px 14px;margin-top:16px;
  font-size:13.5px;line-height:1.5;color:var(--ink-soft);
}
.fb-context b{display:block;color:var(--ink);font-weight:600;margin-bottom:3px}
.fb-context .mono{font-size:11px;color:var(--ink-faint);letter-spacing:.04em}

.fb-tools{margin:18px 0 16px}
.fb-list{display:flex;flex-direction:column;gap:12px}
.fb-item{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);
  padding:18px 20px;box-shadow:var(--shadow);border-left:3px solid var(--moss);
}
.fb-item.done{opacity:.62;border-left-color:var(--line-strong)}
.fb-top{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:9px}
.fb-kind{
  font-family:'IBM Plex Mono',monospace;font-size:10px;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;padding:3px 9px;border-radius:999px;
  background:var(--moss-soft);color:var(--moss-text);
}
.fb-kind.question{background:#f8e7e2;color:#8d4530}
.fb-kind.content{background:#f6ecd8;color:#8a6120}
.fb-from{font-size:12.5px;color:var(--ink-faint)}
.fb-from b{color:var(--ink-soft);font-weight:600}
.fb-when{
  margin-left:auto;font-family:'IBM Plex Mono',monospace;font-size:10.5px;
  letter-spacing:.05em;text-transform:uppercase;color:var(--ink-faint);
}
.fb-where{
  font-size:12.5px;color:var(--ink-soft);background:var(--sand);border-radius:7px;
  padding:7px 11px;margin-bottom:10px;
}
.fb-where .mono{font-size:11px;color:var(--ink-faint)}
.fb-where a{color:var(--moss-text);font-weight:600;cursor:pointer;text-decoration:none}
.fb-where a:hover{text-decoration:underline}
.fb-body{margin:0;font-size:14.5px;line-height:1.6;white-space:pre-wrap}
.fb-actions{display:flex;gap:8px;margin-top:13px}

@media (max-width:620px){
  .fb-long{display:none}
  .fb-short{display:inline;font-size:15px}
  .fb-btn{padding:6px 10px}
  .fb-item{padding:15px 16px}
  .fb-when{margin-left:0;width:100%}
  .fb-actions .btn{flex:1}
  .annrow{flex-wrap:wrap;gap:8px}
  .annrow div{flex:1 1 100%}
  .annrow .icon-btn{margin-left:auto}
}


/* ---------- set list (question sets, guides, trees, decks) ---------- */
.set-card{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);padding:20px;
  cursor:pointer;box-shadow:var(--shadow);transition:transform .12s,box-shadow .15s,border-color .15s;
}
.set-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:var(--line-strong)}
.set-top{display:flex;align-items:center;gap:8px;margin-bottom:11px}
.set-kind{
  font-family:'IBM Plex Mono',monospace;font-size:10px;font-weight:600;letter-spacing:.1em;
  text-transform:uppercase;color:var(--moss-text);background:var(--moss-soft);
  padding:3px 9px;border-radius:999px;
}
.set-right{margin-left:auto;display:flex;align-items:center;gap:8px;flex:0 0 auto}
.set-edit{
  border:1px solid var(--line);background:var(--ivory);color:var(--ink-faint);
  width:26px;height:26px;border-radius:8px;cursor:pointer;font-size:13px;line-height:1;
  display:grid;place-items:center;padding:0;transition:color .15s,border-color .15s,background .15s;
}
.set-edit:hover{color:var(--moss-text);border-color:var(--moss);background:var(--moss-soft)}
.set-card h3{font-size:17px;line-height:1.35}
.set-sub{margin:6px 0 0;font-size:13.5px;line-height:1.5;color:var(--ink-soft)}
.set-card .course-meta{margin-top:10px}

/* ---------- search ---------- */
.searchbar{max-width:1060px;margin:0 auto;padding:20px 24px 0;position:relative;z-index:30}
.searchbar-row{display:flex;gap:9px}
.search-field{position:relative;flex:1 1 auto;min-width:0}
.search-field input{padding-left:38px;padding-right:36px}
.search-ico{
  position:absolute;left:13px;top:50%;transform:translateY(-52%);
  font-size:19px;line-height:1;color:var(--ink-faint);pointer-events:none;
}
.search-clear{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  border:0;background:transparent;color:var(--ink-faint);cursor:pointer;
  font-size:13px;line-height:1;padding:5px 7px;border-radius:7px;
}
.search-clear:hover{background:var(--sand);color:var(--ink)}
.search-kind{flex:0 0 auto;width:180px}

.search-results{
  position:absolute;left:24px;right:24px;top:100%;margin-top:7px;z-index:70;
  background:var(--ivory);border:1px solid var(--line-strong);border-radius:var(--r);
  box-shadow:var(--shadow-lift);max-height:min(60vh,420px);overflow-y:auto;
}
.q-row{
  display:flex;align-items:flex-start;gap:11px;width:100%;text-align:left;
  padding:11px 14px;border:0;border-bottom:1px solid var(--line);
  background:transparent;cursor:pointer;color:var(--ink);
}
.q-row:last-child{border-bottom:0}
.q-row:hover,.q-row.on{background:var(--moss-soft)}
.q-chip{
  flex:0 0 auto;margin-top:2px;padding:3px 8px;border-radius:999px;
  background:var(--sand);color:var(--ink-soft);
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;
}
.q-row:hover .q-chip,.q-row.on .q-chip{background:var(--ivory);color:var(--moss-text)}
.q-main{min-width:0;flex:1}
.q-main b{display:block;font-size:14.5px;font-weight:600;line-height:1.35}
.q-main span{display:block;font-size:12.5px;color:var(--ink-faint);margin-top:2px;line-height:1.4}
.search-empty{margin:0;padding:18px;text-align:center;font-size:13.5px;color:var(--ink-faint)}

.lec.flash{border-color:var(--moss);box-shadow:0 0 0 3px rgba(127,145,52,.18)}

@media (max-width:620px){
  .searchbar{padding:14px 14px 0}
  .searchbar-row{flex-wrap:wrap}
  .search-kind{width:100%;flex:1 1 100%}
  .search-results{left:14px;right:14px;max-height:min(58vh,380px)}
}

/* ---------- scratch pad (slide-out whiteboard, never saved) ---------- */
/* When the pad opens and there is room for both, the page gives up the
   space rather than being covered: #app is padded by the pad's width and
   everything inside reflows into what is left. Too narrow for that (a
   phone) and it falls back to overlaying. */
#app{transition:padding-right .24s ease}
#app.wb-push{padding-right:var(--wb-w,0px)}

.wb-tab{
  position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:76;
  width:38px;height:66px;padding:0;cursor:pointer;
  border:1px solid var(--line-strong);border-right:0;border-radius:12px 0 0 12px;
  background:var(--ivory);color:var(--ink-soft);font-size:18px;line-height:1;
  box-shadow:var(--shadow);touch-action:manipulation;
  transition:color .15s,background .15s,box-shadow .15s;
}
.wb-tab:hover{color:var(--moss-text);background:#fff;box-shadow:var(--shadow-lift)}
.wb-tab.hidden{display:none !important}

.wb{
  position:fixed;top:0;right:0;bottom:0;z-index:78;width:clamp(300px,42vw,520px);
  background:var(--ivory);border-left:1px solid var(--line-strong);
  box-shadow:-10px 0 44px rgba(46,40,34,.16);
  display:flex;flex-direction:column;
  transform:translateX(101%);transition:transform .24s ease;
  overscroll-behavior:contain;
}
.wb.on{transform:translateX(0)}
.wb-resize{position:absolute;left:-3px;top:0;bottom:0;width:11px;cursor:col-resize;touch-action:none;z-index:2}

.wb-head{display:flex;align-items:center;gap:10px;padding:13px 15px;border-bottom:1px solid var(--line)}
.wb-title{font-weight:600;font-size:15px}
.wb-note{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;font-weight:600;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink-faint);
  border:1px solid var(--line);border-radius:999px;padding:2px 8px;
}
.wb-x{
  margin-left:auto;border:0;background:transparent;color:var(--ink-faint);cursor:pointer;
  font-size:14px;line-height:1;padding:6px 8px;border-radius:8px;touch-action:manipulation;
}
.wb-x:hover{background:var(--sand);color:var(--ink)}

.wb-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:11px 15px;border-bottom:1px solid var(--line)}
.wb-colors{display:flex;gap:7px}
.wb-c{
  width:23px;height:23px;padding:0;border-radius:50%;cursor:pointer;
  background:var(--c);border:2px solid transparent;box-shadow:0 0 0 1px var(--line-strong);
  touch-action:manipulation;transition:transform .12s;
}
.wb-c:hover{transform:scale(1.12)}
.wb-c.on{border-color:var(--ivory);box-shadow:0 0 0 2px var(--ink)}
.wb-sizes{display:flex;gap:5px;margin-left:2px}
.wb-s{
  width:27px;height:27px;padding:0;border-radius:8px;cursor:pointer;
  border:1px solid var(--line-strong);background:var(--ivory);
  display:grid;place-items:center;touch-action:manipulation;
}
.wb-s.on{border-color:var(--moss);background:var(--moss-soft)}
.wb-s i{display:block;border-radius:50%;background:var(--ink)}
.wb-btn{
  border:1px solid var(--line-strong);background:var(--ivory);color:var(--ink);
  border-radius:999px;padding:5px 13px;font-size:12.5px;font-weight:500;cursor:pointer;
  touch-action:manipulation;transition:background .15s,border-color .15s,color .15s;
}
.wb-btn:hover{border-color:var(--ink-faint)}
.wb-btn.on{background:var(--amber);border-color:var(--amber);color:#fff}
#wb-clear{margin-left:auto}

.wb-wrap{flex:1;position:relative;overflow:hidden}
#wb-canvas{
  position:absolute;inset:0;width:100%;height:100%;
  touch-action:none;-webkit-user-select:none;user-select:none;cursor:crosshair;
  background-image:radial-gradient(rgba(46,40,34,.11) 1px,transparent 1px);
  background-size:23px 23px;background-position:11px 11px;
}

@media (max-width:620px){
  .wb{width:100vw}
  .wb-tab{width:34px;height:58px;font-size:16px}
  .wb-tools{gap:7px;padding:10px 12px}
  .wb-head{padding:11px 12px}
  #wb-clear{margin-left:0}
}

/* Tablet-width topbar: the nav needs to scroll before 620px, or the
   Feedback/Sign out group pushes the page sideways (iPad portrait). */
@media (max-width:900px){
  .topbar{overflow:hidden}
  .brand{flex:0 0 auto}
  .brand-txt{white-space:nowrap}
  .topnav{flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .topnav::-webkit-scrollbar{display:none}
  .tab{flex:0 0 auto;white-space:nowrap}
  .who{flex:0 0 auto}
}

/* With the pad open the page can be far narrower than the window, so the
   runner and top strip need their narrow-screen layout based on the space
   that is actually left rather than on the viewport. */
#app.wb-narrow .runner.on{grid-template-columns:1fr}
#app.wb-narrow .navigator{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}
#app.wb-narrow .stage{padding:20px 18px 70px}
#app.wb-narrow .qcard{padding:22px 20px}
#app.wb-narrow .topstrip{grid-template-columns:1fr}
#app.wb-narrow .who .mono{display:none}
#app.wb-narrow .searchbar-row{flex-wrap:wrap}
#app.wb-narrow .search-kind{width:100%;flex:1 1 100%}
#app.wb-narrow .stage-tools{margin-left:0;width:100%}
#app.wb-narrow .stage-tools .btn{flex:1 1 auto;white-space:nowrap;padding:6px 11px}
#app.wb-narrow .tool-long{display:none}
#app.wb-narrow .tool-short{display:inline}

/* The topbar sizes itself to the window, so when the pad takes half of it
   the nav has to start scrolling exactly as it does on a small screen. */
#app.wb-push .topbar{overflow:hidden}
#app.wb-push .brand{flex:0 0 auto}
#app.wb-push .brand-txt{white-space:nowrap}
#app.wb-push .topnav{flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
#app.wb-push .topnav::-webkit-scrollbar{display:none}
#app.wb-push .tab{flex:0 0 auto;white-space:nowrap}
#app.wb-push .who{flex:0 0 auto}

/* ============================================================
   EXAM MODE — practice questions only.
   `body.exam` is toggled on when #view-runner is showing, so
   everything below is scoped to the question runner. The rest
   of the Drill Room keeps its warm palette untouched.
   Colours sampled from the Examplify screenshot.
   ============================================================ */
:root{
  --ex-page:#fefefc; --ex-white:#ffffff; --ex-line:#dfe3e8; --ex-line-soft:#e4e7eb;
  --ex-navy:#184668; --ex-navy-deep:#123a56; --ex-ink:#22333f; --ex-ink-soft:#4a5b6b;
  --ex-ink-faint:#7b8794; --ex-rail:#dbf3ff; --ex-rail-line:#bcdcee; --ex-rail-soft:#d4e7f5;
  --ex-choice:#f0f1f5; --ex-choice-line:#e2e5ea; --ex-blue-soft:#e4edf4;
}

.answers-label{display:none}
.exam-foot{display:none}

body.exam{background-color:var(--ex-page);background-image:none}
/* the search bar navigates away mid-question and is not part of the exam chrome */
body.exam .searchbar{display:none}

/* ---- top bar ---- */
body.exam .topbar{background:var(--ex-white);border-bottom:1px solid var(--ex-line);backdrop-filter:none}
body.exam .mark{background:var(--ex-navy)}
body.exam .brand-txt{color:var(--ex-navy-deep)}
body.exam .tab{color:var(--ex-ink-soft)}
body.exam .tab:hover{background:#eef4f9;color:var(--ex-navy-deep)}
body.exam .tab.on{background:var(--ex-blue-soft);color:var(--ex-navy-deep);box-shadow:none}
body.exam .who .mono{color:var(--ex-ink-faint)}

/* ---- buttons ---- */
body.exam .btn{background:var(--ex-white);border-color:#cfd6dd;color:var(--ex-ink)}
body.exam .btn:hover{background:#f4f7fa;border-color:#9fb0bf}
body.exam .btn.ghost{background:transparent;border-color:var(--ex-line)}
body.exam .btn.ghost:hover{background:#f4f7fa}
body.exam .btn.primary,body.exam .btn.primary:hover{background:var(--ex-navy);border-color:var(--ex-navy);color:#fff}
body.exam .btn.primary:hover{background:var(--ex-navy-deep);border-color:var(--ex-navy-deep)}
body.exam .btn.flagged{background:#fdf3dd;border-color:#c98a1e;color:#8a5e10}
body.exam .pom.running .pom-label,body.exam .pom.running .pom-big{color:var(--ex-navy)}
body.exam .pom.running .pom-dot{background:var(--ex-navy)}

/* ---- left rail ---- */
body.exam .navigator{background:var(--ex-rail);border-right:1px solid var(--ex-rail-line)}
body.exam .nav-title{color:var(--ex-navy-deep)}
body.exam .navigator .lbl{color:var(--ex-ink-soft)}
body.exam .filters,body.exam .score{border-bottom-color:var(--ex-rail-line)}
body.exam .chip{background:var(--ex-white);border-color:#a9cfe4;color:#2c4a5f}
body.exam .chip:hover{border-color:var(--ex-navy);color:var(--ex-navy-deep)}
body.exam .chip.on{background:var(--ex-navy);border-color:var(--ex-navy);color:#fff}
body.exam .select{background:var(--ex-white);border-color:#a9cfe4;color:var(--ex-ink)}
body.exam .score-row{color:var(--ex-ink-soft)}
body.exam .score-row b{color:var(--ex-navy-deep)}
body.exam .bar{background:var(--ex-rail-line)}
body.exam .bar i{background:var(--ex-navy)}
body.exam .dot{background:var(--ex-white);border-color:#a9cfe4;color:#2c4a5f}
body.exam .dot:hover{border-color:var(--ex-navy)}
body.exam .dot.answered{background:var(--ex-rail-soft);border-color:#a9cfe4;color:var(--ex-navy-deep)}
body.exam .dot.correct{background:var(--ex-navy);border-color:var(--ex-navy);color:#fff}
body.exam .dot.wrong{background:#b3452f;border-color:#b3452f;color:#fff}
body.exam .dot.cur{outline-color:var(--ex-navy)}
body.exam .dot.flag::after{background:#c98a1e;border-color:var(--ex-rail)}

/* ---- question card ---- */
body.exam .stage{max-width:none;padding:20px 30px 92px}
body.exam .qnum{color:var(--ex-ink);font-weight:600;font-size:14px}
body.exam .pill{background:var(--ex-blue-soft);color:#2c4a5f}
body.exam .qcard{
  background:var(--ex-white);border:1px solid var(--ex-line-soft);
  border-radius:6px;box-shadow:none;padding:24px 26px;
}
body.exam .stem{font-size:15px;line-height:1.62;color:var(--ex-ink);margin-bottom:16px}
body.exam .answers-label{display:block;font-size:13px;color:var(--ex-ink-soft);margin:0 0 10px}
body.exam .choices{gap:7px}
body.exam .choice{
  background:var(--ex-choice);border:1px solid var(--ex-choice-line);border-radius:5px;
  padding:11px 14px;font-size:14px;gap:10px;align-items:center;
}
body.exam .choice:hover{background:#e8eaf0;border-color:#c9ced8}
body.exam .choice .ltr{
  flex:0 0 auto;width:auto;height:auto;border:0;background:none;border-radius:0;margin:0 4px 0 0;
  font-family:'Figtree',ui-sans-serif,system-ui,sans-serif;font-size:14px;font-weight:600;color:var(--ex-ink);
}
body.exam .choice.sel{background:var(--ex-rail-soft);border-color:#7fb3d5}
body.exam .choice.sel .ltr{background:none;color:var(--ex-navy-deep)}
body.exam .choice.is-correct{background:#dff0e2;border-color:#8bbf96}
body.exam .choice.is-wrong{background:#f7e2dd;border-color:#d5a094}
body.exam .eye{color:#5c6b7a;opacity:.5}
body.exam .eye:hover{background:#e2e5ea;opacity:1}
body.exam .selrow{border-top-color:var(--ex-line-soft)}
body.exam .selected{color:var(--ex-ink-soft)}
body.exam .explain{background:#f7f9fb;border-color:var(--ex-line-soft)}

/* ---- bottom bar: counter left, Previous / Next right ---- */
body.exam #btn-prev,body.exam #btn-next{display:none}
body.exam .exam-foot{
  display:flex;align-items:center;gap:14px;
  position:fixed;left:58px;right:0;bottom:0;z-index:35;   /* clears the number rail */
  padding:11px 30px;background:var(--ex-white);border-top:1px solid var(--ex-line);
  transition:left .24s cubic-bezier(.4,0,.2,1);
}
body.exam .runner.nav-open .exam-foot{left:332px}
body.exam .exam-count{font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--ex-ink-faint)}
body.exam .exam-foot-btns{margin-left:auto;display:flex;gap:8px}
body.exam .exam-foot-btns .btn{min-width:98px;text-align:center}

@media (max-width:820px){
  body.exam .navigator{background:var(--ex-rail);border-bottom-color:var(--ex-rail-line)}
  body.exam .exam-foot{left:0;padding:10px 16px}
  body.exam .stage{padding:18px 16px 88px}
}

/* ---- collapsed number rail + slide-out panel (exam mode) ---- */
.nav-rail{display:none}
.nav-panel{display:block}

/* auto track + animated width: the rail widens to hold the panel, so the
   question column is pushed across rather than covered. Animating width
   (not grid-template-columns) keeps this working in Safari and on iPad. */
body.exam .runner{grid-template-columns:auto 1fr}
body.exam .navigator{
  width:58px;padding:0;overflow:visible;
  background:var(--ex-rail);border-right:1px solid var(--ex-rail-line);
  transition:width .24s cubic-bezier(.4,0,.2,1);
}
body.exam .navigator.open{width:332px}
body.exam .nav-rail{
  display:flex;flex-direction:column;align-items:center;gap:9px;
  width:58px;height:100%;padding:11px 0 18px;overflow-y:auto;overflow-x:hidden;
  scrollbar-width:none;
}
body.exam .nav-rail::-webkit-scrollbar{display:none}

body.exam .nav-back,body.exam .nav-toggle{
  flex:0 0 auto;border:1px solid #a9cfe4;background:var(--ex-white);color:#2c4a5f;
  border-radius:9px;cursor:pointer;transition:background .14s,border-color .14s,color .14s;
}
body.exam .nav-back{width:34px;height:30px;font-size:15px;line-height:1}
body.exam .nav-toggle{
  width:38px;padding:7px 0 6px;display:flex;flex-direction:column;align-items:center;gap:1px;
  font-family:'IBM Plex Mono',monospace;font-size:8.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
}
body.exam .nav-toggle-caret{font-size:9px;line-height:1;transition:transform .2s}
body.exam .nav-back:hover,body.exam .nav-toggle:hover{background:var(--ex-blue-soft);border-color:var(--ex-navy);color:var(--ex-navy-deep)}
body.exam .navigator.open .nav-toggle{background:var(--ex-navy);border-color:var(--ex-navy);color:#fff}
body.exam .navigator.open .nav-toggle-caret{transform:rotate(180deg)}

/* numbers stack in one column, like the exam software */
body.exam .dots{display:flex;flex-direction:column;gap:8px;grid-template-columns:none;margin-top:3px}
body.exam .dot{width:32px;height:32px;flex:0 0 auto}

/* the panel occupies the width the rail gains, so it never overlaps the question */
body.exam .nav-panel{
  position:absolute;left:58px;top:0;width:274px;height:100%;
  padding:20px;overflow-y:auto;z-index:30;
  background:var(--ex-rail);border-right:1px solid var(--ex-rail-line);
  transform:translateX(-102%);opacity:0;pointer-events:none;
  transition:transform .24s cubic-bezier(.4,0,.2,1),opacity .18s ease;
}
body.exam .navigator.open .nav-panel{transform:translateX(0);opacity:1;pointer-events:auto}

@media (max-width:820px){
  body.exam .runner{grid-template-columns:58px 1fr}
  body.exam .navigator{
    position:sticky;top:55px;height:calc(100vh - 55px);
    border-bottom:0;border-right:1px solid var(--ex-rail-line);
  }
  body.exam .nav-panel{width:min(274px,calc(100vw - 58px))}
  body.exam .navigator.open{width:min(332px,100vw)}
  body.exam .runner.nav-open .exam-foot{left:min(332px,100vw)}
}

/* ---------- class-year chooser (first login) ---------- */
.year-wrap{display:none;min-height:100vh;place-items:center;padding:40px 20px}
.year-wrap.on{display:grid}
.year-card{
  background:var(--ivory);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lift);padding:38px 38px 30px;max-width:520px;width:100%;text-align:center;
}
.year-card .mark{margin:0 auto 18px}
.year-card h1{font-size:24px;margin-bottom:8px}
.year-card .sub{margin:0 auto 26px;max-width:400px}
.year-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;text-align:left}
.year-opt{
  display:flex;flex-direction:column;gap:2px;padding:20px 18px;cursor:pointer;
  background:var(--ivory);border:1px solid var(--line-strong);border-radius:var(--r);
  transition:transform .12s,border-color .15s,background .15s,box-shadow .15s;
}
.year-opt:hover:not(:disabled){transform:translateY(-2px);border-color:var(--moss);background:var(--moss-soft);box-shadow:var(--shadow)}
.year-opt:disabled{opacity:.5;cursor:default}
.year-num{font-size:26px;font-weight:600;color:var(--moss-text);letter-spacing:-.02em}
.year-lbl{font-size:14.5px;font-weight:600;color:var(--ink)}
.year-note{font-size:12.5px;color:var(--ink-faint)}
@media (max-width:520px){ .year-grid{grid-template-columns:1fr} }

/* ---------- settings menu ---------- */
.settings{position:relative;flex:0 0 auto}
.set-btn{display:flex;align-items:center;gap:7px;white-space:nowrap}
.set-ico{font-size:14px;line-height:1}
.set-menu{
  position:absolute;top:calc(100% + 9px);right:0;z-index:60;width:262px;
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow-lift);padding:15px 16px 13px;
}
.set-menu.hidden{display:none}
.set-eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.11em;
  text-transform:uppercase;color:var(--ink-faint);font-weight:600;display:block;
}
.set-fine{font-size:12.5px;color:var(--ink-faint);margin:5px 0 11px;line-height:1.45}
.set-years{display:flex;flex-direction:column;gap:6px}
.set-year{
  display:flex;align-items:center;gap:10px;width:100%;text-align:left;cursor:pointer;
  background:var(--ivory);border:1px solid var(--line);border-radius:9px;padding:9px 12px;
  font-size:13.5px;color:var(--ink);transition:background .14s,border-color .14s;
}
.set-year:hover:not(:disabled){background:var(--moss-soft);border-color:var(--moss)}
.set-year:disabled{opacity:.55;cursor:default}
.set-year .mono{font-size:12.5px;font-weight:600;color:var(--moss-text)}
.set-year.on{background:var(--moss-soft);border-color:var(--moss)}
.set-tick{margin-left:auto;color:var(--moss-text);font-weight:600}
.set-msg{font-size:12px;color:var(--ink-faint);margin:9px 0 0;min-height:1em}

/* exam mode keeps the settings button in the navy palette */
body.exam .set-year .mono,body.exam .set-tick{color:var(--ex-navy)}
body.exam .set-year.on,body.exam .set-year:hover:not(:disabled){background:var(--ex-blue-soft);border-color:var(--ex-navy)}

@media (max-width:620px){
  .set-txt{display:none}
  .set-btn{padding:6px 10px;gap:0}
  .set-menu{width:250px;right:-40px}
}

/* ---------- review folder: flip-through mode ---------- */
.rev-mode{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.rfc-stage{max-width:660px;margin:0 auto;padding-top:6px}
.rfc-counts{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.rfc-counts .mono{font-size:12px;color:var(--ink-faint);letter-spacing:.05em}
.rfc-counts .btn{margin-left:auto}
.rfcard{
  background:var(--ivory);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);padding:30px 30px 32px;min-height:230px;cursor:pointer;
  display:flex;flex-direction:column;gap:14px;transition:box-shadow .15s;
}
.rfcard:hover{box-shadow:var(--shadow-lift)}
.rfcard .rcard-src{
  font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:.09em;
  text-transform:uppercase;color:var(--ink-faint);font-weight:600;
}
.rfc-front{font-size:19px;font-weight:600;line-height:1.45;color:var(--ink);letter-spacing:-.01em}
.rfc-back{
  font-size:15px;line-height:1.65;color:var(--ink-soft);white-space:pre-wrap;
  border-top:1px solid var(--line);padding-top:16px;
}
.rfc-note{border-top:1px solid var(--line);padding-top:13px}
.rfc-note h5{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-faint);margin:0 0 5px;font-weight:600;
}
.rfc-note p{margin:0;font-size:14px;line-height:1.6;color:var(--ink-soft)}
.rfc-actions{display:flex;gap:8px;margin-top:16px}
.rfc-actions .btn{flex:1}
.rfc-actions .btn.primary{flex:1.4}
@media (max-width:560px){
  .rev-mode{margin-left:0;width:100%}
  .rfcard{padding:24px 20px 26px}
  .rfc-front{font-size:17px}
}

/* ---------- who's joined (admin) ---------- */
.usr-tools{display:flex;align-items:center;gap:12px;margin-top:14px}
.usr-tools .fine{margin:0}
.usr-list{margin-top:12px}
.usr-table{width:100%;border-collapse:collapse;font-size:13.5px}
.usr-table td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
.usr-table tr:last-child td{border-bottom:none}
.usr-email{font-size:12.5px;color:var(--ink);word-break:break-all}
.usr-when{white-space:nowrap;color:var(--ink-faint);margin:0}
.usr-yr{
  font-family:'IBM Plex Mono',monospace;font-size:10px;font-weight:600;letter-spacing:.07em;
  padding:3px 9px;border-radius:999px;background:var(--moss-soft);color:var(--moss-text);white-space:nowrap;
}
.usr-yr.none{background:#f6ecd8;color:var(--amber)}
.usr-yr.own{background:var(--sand-deep);color:var(--ink-soft)}
@media (max-width:620px){
  .usr-table td{padding:8px 6px}
  .usr-when{display:none}
}