/* Squishy Math School — shared dashboard styles (login, teacher, admin) */
:root{
  --sky:#cfe6ff; --sky-top:#e2f1ff; --sky-deep:#a9d2ff;
  --cloud:#ffffff; --panel-2:#f2f4ff; --panel-3:#e6e9ff; --muted:#d9d5ea; --line:#e4e1f2;
  --ink:#2b2350; --ink-soft:#5d5580; --ink-faint:#8d86b3;
  --gum:#ff5c9a; --gum-deep:#d63a77; --sun:#ffd23f; --sun-deep:#e0a800; --sun-soft:#fff3b8;
  --mint:#4fe3b0; --mint-deep:#1fb586; --mint-soft:#d8f9ee; --grape:#8f63ff; --grape-deep:#6a3fd6; --grape-soft:#ece5ff;
  --tangerine:#ff9e4a; --bad:#ff5a5a; --bad-soft:#ffe0e0;
  --sc:rgba(43,35,80,.14); --sc2:rgba(43,35,80,.18);
  --display:"Fredoka","Arial Rounded MT Bold","Helvetica Rounded",system-ui,sans-serif;
  --body:"Nunito","Avenir Next Rounded","Arial Rounded MT Bold",system-ui,sans-serif;
  --r:18px; --r-sm:12px;
}
*{box-sizing:border-box}
html{height:100%}
body{
  margin:0;min-height:100dvh;background:var(--sky);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.45;
  background-image:
    radial-gradient(circle at 12% 12%, #ffffff99 0 90px, transparent 91px),
    radial-gradient(circle at 88% 8%, #ffffff77 0 60px, transparent 61px),
    radial-gradient(circle at 92% 92%, #ffffff66 0 110px, transparent 111px),
    linear-gradient(180deg,var(--sky-top) 0%, var(--sky) 55%, var(--sky-deep) 100%);
  background-attachment:fixed;
  padding-inline:16px;padding-block:0 24px;
  -webkit-font-smoothing:antialiased;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid var(--grape);outline-offset:2px}
a{color:var(--grape-deep)}
[hidden]{display:none !important}
h1,h2,h3,h4{font-family:var(--display);font-weight:700;margin:0;line-height:1.15;text-wrap:balance}
h1{font-size:30px} h2{font-size:24px} h3{font-size:19px} h4{font-size:16px}
p{margin:0}
.muted{color:var(--ink-soft)} .faint{color:var(--ink-faint)}
.small{font-size:14px}
.tnum{font-variant-numeric:tabular-nums}
.nowrap{white-space:nowrap}

/* ---------- top bar ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:66px;max-width:1240px;margin:0 auto;flex-wrap:wrap}
.brand{font-family:var(--display);font-weight:700;font-size:22px;display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;white-space:nowrap}
.brand .blob{width:36px;height:32px;border-radius:50% 50% 45% 55% / 60% 60% 40% 40%;background:linear-gradient(160deg,#ff5c9a,#8f63ff);display:grid;place-items:center;color:#fff;font-size:19px;box-shadow:0 3px 0 var(--sc2)}
.brand .tag{font-size:13px;font-weight:800;color:var(--grape-deep);background:var(--grape-soft);padding:3px 9px;border-radius:999px;letter-spacing:.3px;text-transform:uppercase}
.who{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink-soft)}
.who b{color:var(--ink)}
.impersonate{max-width:1240px;margin:8px auto 0;background:var(--sun);color:#2b2350;border-radius:var(--r-sm);padding:10px 14px;display:flex;justify-content:space-between;align-items:center;gap:10px;font-weight:800;box-shadow:0 4px 0 var(--sun-deep)}

/* ---------- layout ---------- */
.page{max-width:1240px;margin:0 auto;display:flex;flex-direction:column;gap:16px;padding-top:10px}
.split{display:grid;grid-template-columns:260px 1fr;gap:18px;align-items:start}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.card{background:var(--cloud);border-radius:var(--r);box-shadow:0 6px 0 var(--sc);padding:18px;min-width:0}
.split > *,.grid-2 > *,.grid-3 > *,.stack > *{min-width:0}
.card.tight{padding:12px 14px}
.card-h{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.stack{display:flex;flex-direction:column;gap:12px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row.between{justify-content:space-between}
.row.end{justify-content:flex-end}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:700px){.grid-2,.grid-3{grid-template-columns:1fr}}

/* ---------- buttons ---------- */
.btn{
  font-family:var(--display);font-weight:600;font-size:16px;letter-spacing:.2px;padding:9px 16px;border-radius:14px;
  color:#fff;background:var(--gum);box-shadow:0 4px 0 var(--gum-deep);display:inline-flex;align-items:center;justify-content:center;gap:7px;
  min-height:42px;transition:transform .08s,box-shadow .08s,opacity .2s;white-space:nowrap
}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 var(--gum-deep)}
.btn.grape{background:var(--grape);box-shadow:0 4px 0 var(--grape-deep)} .btn.grape:active{box-shadow:0 1px 0 var(--grape-deep)}
.btn.mint{background:var(--mint);color:#173a2c;box-shadow:0 4px 0 var(--mint-deep)} .btn.mint:active{box-shadow:0 1px 0 var(--mint-deep)}
.btn.sun{background:var(--sun);color:#2b2350;box-shadow:0 4px 0 var(--sun-deep)} .btn.sun:active{box-shadow:0 1px 0 var(--sun-deep)}
.btn.ghost{background:var(--panel-2);color:var(--ink);box-shadow:0 4px 0 var(--muted)} .btn.ghost:active{box-shadow:0 1px 0 var(--muted)}
.btn.danger{background:var(--bad-soft);color:#b42323;box-shadow:0 4px 0 #f0b3b3} .btn.danger:active{box-shadow:0 1px 0 #f0b3b3}
.btn.sm{font-size:14px;padding:6px 11px;min-height:34px;border-radius:11px}
.btn.big{font-size:20px;padding:14px 26px;min-height:56px;border-radius:18px}
.btn.block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.iconbtn{width:36px;height:36px;border-radius:10px;background:var(--panel-2);display:inline-grid;place-items:center;font-size:16px;box-shadow:0 3px 0 var(--muted)}
.iconbtn:active{transform:translateY(2px);box-shadow:0 1px 0 var(--muted)}
.iconbtn.danger{background:var(--bad-soft);box-shadow:0 3px 0 #f0b3b3}
.linkbtn{color:var(--grape-deep);font-weight:800;text-decoration:underline;text-underline-offset:3px;padding:0}

/* ---------- forms ---------- */
label.field{display:flex;flex-direction:column;gap:6px;font-weight:800;color:var(--ink-soft);font-size:14px}
label.field > span.lbl{text-transform:uppercase;letter-spacing:.5px;font-size:12px}
.input,input.input,select.input,textarea.input{
  width:100%;background:var(--panel-2);border:2px solid transparent;border-radius:var(--r-sm);padding:10px 12px;font-size:16px;color:var(--ink);
  transition:border-color .15s,background .15s;min-height:44px
}
.input:focus{border-color:var(--grape);background:#fff;outline:none}
textarea.input{min-height:120px;resize:vertical;font-family:var(--body)}
select.input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-soft) 50%),linear-gradient(135deg,var(--ink-soft) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:36px}
.input.big{font-size:20px;min-height:56px;padding:12px 16px;border-radius:16px}
.pw-wrap{position:relative}
.pw-wrap .input{padding-right:52px}
.pw-wrap .eye{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-size:18px;background:transparent}
.pw-wrap .eye:hover{background:var(--panel-3)}
.help{font-size:13px;font-weight:700;color:var(--ink-faint)}
.err{color:#b42323;background:var(--bad-soft);border-radius:var(--r-sm);padding:10px 12px;font-weight:800}
.toggle{display:inline-flex;align-items:center;gap:10px;cursor:pointer;font-weight:800;color:var(--ink)}
.toggle input{position:absolute;opacity:0;width:0;height:0}
.toggle .sw{width:48px;height:28px;border-radius:999px;background:var(--muted);position:relative;transition:background .2s;flex:none}
.toggle .sw::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:left .2s;box-shadow:0 2px 0 rgba(0,0,0,.15)}
.toggle input:checked + .sw{background:var(--mint-deep)}
.toggle input:checked + .sw::after{left:23px}
.toggle.sunny input:checked + .sw{background:var(--sun-deep)}
.toggle input:focus-visible + .sw{outline:3px solid var(--grape);outline-offset:2px}
.chk{display:inline-flex;align-items:center;gap:8px;font-weight:800;cursor:pointer;background:var(--panel-2);padding:7px 11px;border-radius:10px;user-select:none}
.chk input{width:18px;height:18px;accent-color:var(--grape)}
.chk.on{background:var(--grape-soft);color:var(--grape-deep)}

/* ---------- pills / badges ---------- */
.pill{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:13px;font-weight:800;background:var(--panel-2);color:var(--ink-soft);white-space:nowrap}
.pill.grape{background:var(--grape-soft);color:var(--grape-deep)}
.pill.mint{background:var(--mint-soft);color:#12704f}
.pill.sun{background:var(--sun-soft);color:#7a5a00}
.pill.gum{background:#ffe0ec;color:#b42a63}
.pill.bad{background:var(--bad-soft);color:#b42323}
.pill.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.5px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--panel-3);display:inline-grid;place-items:center;font-size:18px;flex:none}
.avatar.lg{width:44px;height:44px;font-size:24px}

/* ---------- nav ---------- */
.classnav{display:flex;flex-direction:column;gap:6px}
.classnav .item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-radius:12px;text-align:left;width:100%;font-weight:800;color:var(--ink-soft);background:transparent}
.classnav .item:hover{background:var(--panel-2)}
.classnav .item.on{background:var(--grape-soft);color:var(--grape-deep)}
.classnav .item .n{display:flex;flex-direction:column;gap:1px;min-width:0}
.classnav .item .n small{font-weight:700;color:var(--ink-faint);font-family:ui-monospace,Menlo,monospace;letter-spacing:.5px;font-size:12px}
.classnav .item .cnt{font-size:13px;background:var(--cloud);padding:2px 8px;border-radius:999px;color:var(--ink-soft);flex:none}
.tabs{display:flex;gap:4px;background:var(--panel-2);padding:4px;border-radius:14px;flex-wrap:wrap}
.tabs button{font-family:var(--display);font-weight:600;font-size:15px;padding:8px 14px;border-radius:10px;color:var(--ink-soft);min-height:38px;display:inline-flex;align-items:center;gap:6px}
.tabs button.on{background:var(--cloud);color:var(--ink);box-shadow:0 2px 0 var(--sc)}
.tabs button .cnt{font-size:12px;background:var(--panel-3);padding:1px 7px;border-radius:999px;color:var(--ink-soft)}
.tabs button.on .cnt{background:var(--grape-soft);color:var(--grape-deep)}

/* ---------- tables ---------- */
.tablewrap{overflow-x:auto;border-radius:var(--r-sm)}
table.tbl{width:100%;border-collapse:separate;border-spacing:0;font-size:15px}
table.tbl th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-faint);padding:8px 8px;border-bottom:2px solid var(--line);white-space:nowrap;background:var(--cloud);position:sticky;top:0}
table.tbl th.sortable{cursor:pointer;user-select:none}
table.tbl th.sortable:hover{color:var(--grape-deep)}
table.tbl th .dir{opacity:.6;margin-left:4px}
table.tbl td{padding:8px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:0}
table.tbl tr:hover td{background:#fafaff}
table.tbl td.num{text-align:right;font-variant-numeric:tabular-nums}
table.tbl th.num{text-align:right}
table.tbl .name{display:flex;align-items:center;gap:8px;font-weight:800;white-space:nowrap}
table.tbl .actions{display:flex;gap:5px;justify-content:flex-end}
table.tbl .actions .iconbtn{width:30px;height:30px;font-size:14px;border-radius:8px}
.pwcell{display:inline-flex;align-items:center;gap:6px;font-family:ui-monospace,Menlo,monospace;letter-spacing:1px}
.pwcell .dots{letter-spacing:2px;color:var(--ink-faint)}
.mastery{display:inline-grid;grid-template-columns:repeat(12,11px);gap:2px}
.mastery i{width:11px;height:11px;border-radius:4px;background:var(--panel-3);display:block}
.mastery i.s1{background:#ffd9a8} .mastery i.s2{background:#7fe0c0} .mastery i.s3{background:var(--grape)}
.bar{height:10px;background:var(--panel-3);border-radius:999px;overflow:hidden;min-width:90px}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--mint),var(--grape));border-radius:999px;transition:width .3s}
.pager{display:flex;align-items:center;gap:8px;justify-content:flex-end;font-weight:800;color:var(--ink-soft);font-size:14px}

/* ---------- stat tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.tile{background:var(--cloud);border-radius:var(--r);box-shadow:0 6px 0 var(--sc);padding:14px 16px;display:flex;flex-direction:column;gap:4px;min-height:96px}
.tile .k{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-faint)}
.tile .v{font-family:var(--display);font-weight:700;font-size:32px;line-height:1;font-variant-numeric:tabular-nums}
.tile .sub{font-size:13px;font-weight:700;color:var(--ink-soft)}
.tile.grape .v{color:var(--grape-deep)} .tile.gum .v{color:var(--gum-deep)} .tile.mint .v{color:var(--mint-deep)} .tile.sun .v{color:#a97b00}
.chart{width:100%;height:auto;display:block}
.chart text{font-family:var(--body);font-weight:800;fill:var(--ink-faint);font-size:11px}
.chart .grid line{stroke:var(--line);stroke-width:1}
.chart .bar-r{fill:var(--grape)} .chart .bar-s{fill:var(--gum)}
.chart .bar-r:hover,.chart .bar-s:hover{opacity:.75}

/* ---------- feed ---------- */
.feed{display:flex;flex-direction:column;gap:6px;max-height:520px;overflow:auto}
.feed .ev{display:flex;gap:10px;align-items:flex-start;padding:8px 10px;border-radius:10px;background:var(--panel-2)}
.feed .ev .ico{font-size:20px;line-height:1;flex:none;margin-top:2px}
.feed .ev .t{font-size:12px;color:var(--ink-faint);font-weight:700;white-space:nowrap;margin-left:auto}
.feed .ev.win{background:var(--mint-soft)}
.feed .ev.login{background:var(--grape-soft)}

/* ---------- assignments ---------- */
.alist{display:flex;flex-direction:column;gap:10px}
.arow{display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center;padding:12px;border-radius:14px;background:var(--panel-2);cursor:pointer;text-align:left;width:100%}
.arow:hover{background:var(--panel-3)}
.arow .ico{font-size:30px;line-height:1;text-align:center}
.arow .t{font-weight:800;font-size:16px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.arow .m{font-size:13px;color:var(--ink-soft);font-weight:700}
.arow .prog{display:flex;flex-direction:column;align-items:flex-end;gap:4px;min-width:120px;font-size:13px;font-weight:800;color:var(--ink-soft)}
.worldpick{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}
.worldpick button{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 6px;border-radius:12px;background:var(--panel-2);font-weight:800;font-size:13px;color:var(--ink-soft);border:2px solid transparent}
.worldpick button .ico{font-size:26px;line-height:1}
.worldpick button.on{border-color:var(--grape);background:var(--grape-soft);color:var(--grape-deep)}
.tablepick{display:flex;flex-wrap:wrap;gap:6px}
.tablepick label{width:46px;height:40px;border-radius:10px;background:var(--panel-2);display:grid;place-items:center;font-family:var(--display);font-weight:600;cursor:pointer;user-select:none;border:2px solid transparent}
.tablepick label.on{background:var(--grape-soft);border-color:var(--grape);color:var(--grape-deep)}
.tablepick input{position:absolute;opacity:0;width:0;height:0}

/* ---------- modal / drawer ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(43,35,80,.45);display:grid;place-items:center;padding:16px;z-index:100;animation:fade .15s}
.modal{background:var(--cloud);border-radius:22px;box-shadow:0 12px 0 var(--sc2);padding:22px;width:min(640px,100%);max-height:92dvh;overflow:auto;display:flex;flex-direction:column;gap:14px;animation:rise .18s}
.modal.wide{width:min(860px,100%)}
.modal-h{display:flex;justify-content:space-between;align-items:center;gap:10px}
.modal-f{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes rise{from{transform:translateY(14px);opacity:0}to{transform:none;opacity:1}}
.drop{border:3px dashed var(--muted);border-radius:16px;padding:26px;text-align:center;background:var(--panel-2);font-weight:800;color:var(--ink-soft);cursor:pointer;transition:border-color .15s,background .15s}
.drop.over,.drop:hover{border-color:var(--grape);background:var(--grape-soft)}
.drop input{display:none}
.drop .big{font-size:36px;line-height:1;margin-bottom:6px}

/* ---------- toast ---------- */
.toasts{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);display:flex;flex-direction:column;gap:8px;z-index:200;align-items:center;pointer-events:none;width:min(92vw,520px)}
.toast{background:#2b2350;color:#fff;padding:11px 18px;border-radius:999px;font-weight:800;font-size:15px;box-shadow:0 6px 0 rgba(0,0,0,.2);animation:rise .2s;text-align:center;max-width:100%}
.toast.ok{background:var(--mint-deep)} .toast.bad{background:#c03a3a} .toast.sun{background:var(--sun-deep);color:#2b2350}

/* ---------- empty state ---------- */
.empty{text-align:center;padding:30px 16px;display:flex;flex-direction:column;gap:8px;align-items:center;color:var(--ink-soft);font-weight:700}
.empty .big{font-size:44px;line-height:1}
.empty h3{color:var(--ink)}

/* ---------- login page ---------- */
.login-wrap{min-height:calc(100dvh - 24px);display:grid;place-items:center;padding-block:24px}
.login{width:min(440px,100%);display:flex;flex-direction:column;gap:18px}
.login .card{padding:26px;display:flex;flex-direction:column;gap:14px;border-radius:26px;box-shadow:0 10px 0 var(--sc)}
.login .hero{text-align:center;display:flex;flex-direction:column;gap:6px;align-items:center}
.login .hero .blob{width:76px;height:68px;font-size:40px;border-radius:50% 50% 45% 55% / 60% 60% 40% 40%;background:linear-gradient(160deg,#ff5c9a,#8f63ff);display:grid;place-items:center;color:#fff;box-shadow:0 6px 0 var(--sc2);animation:breathe 2.6s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:scale(1,1)}50%{transform:scale(1.04,.96)}}
.login h1{font-size:34px}
.login h1 span{color:var(--gum)}
.made{text-align:center;font-family:var(--display);font-weight:600;color:var(--gum);font-size:18px}
.made b{color:var(--ink)}

/* ---------- code banner / double points banner ---------- */
.codebox{background:var(--panel-2);border-radius:16px;padding:18px;text-align:center;display:flex;flex-direction:column;gap:4px}
.codebox .code{font-family:var(--display);font-weight:700;font-size:56px;letter-spacing:6px;color:var(--grape-deep);line-height:1}
.sunbanner{background:linear-gradient(135deg,var(--sun),var(--tangerine));color:#2b2350;border-radius:16px;padding:14px 18px;display:flex;align-items:center;gap:12px;font-weight:800;box-shadow:0 5px 0 var(--sun-deep);animation:rise .25s}
.sunbanner .big{font-size:34px;line-height:1}
.sunbanner b{font-family:var(--display);font-size:20px}

/* ---------- print login cards ---------- */
.cards-print{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.lcard{border:3px dashed var(--muted);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:4px;background:#fff;break-inside:avoid}
.lcard .cls{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-faint)}
.lcard .nm{font-family:var(--display);font-weight:700;font-size:20px}
.lcard .kv{display:flex;justify-content:space-between;gap:8px;font-size:15px}
.lcard .kv b{font-family:ui-monospace,Menlo,monospace;letter-spacing:1px;font-size:16px}
.lcard .url{font-size:12px;color:var(--ink-soft);font-weight:700;margin-top:4px;word-break:break-all}
@media (max-width:700px){.cards-print{grid-template-columns:repeat(2,1fr)}}
@media print{
  body{background:#fff;padding:0}
  .no-print{display:none !important}
  .cards-print{grid-template-columns:repeat(3,1fr);gap:10px}
  .lcard{border-color:#999}
}
@media (max-width:600px){
  h1{font-size:26px}
  .topbar{min-height:56px}
  .card{padding:14px}
  .tile .v{font-size:26px}
  .tabs button{font-size:14px;padding:7px 10px}
}

/* ---------- reporting (teacher overview + student page) ---------- */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.tiles.six{grid-template-columns:repeat(3,1fr)}
@media (max-width:900px){.tiles,.tiles.six{grid-template-columns:repeat(2,1fr)}}
.tile{background:var(--cloud);border-radius:var(--r);box-shadow:0 6px 0 var(--sc);padding:14px 16px;display:flex;flex-direction:column;gap:2px;min-width:0}
.tile .v{font-family:var(--display);font-weight:700;font-size:30px;line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums}
.tile .l{font-weight:800;color:var(--ink-soft);font-size:14px}
.tile .sub{font-size:12px;color:var(--ink-faint);font-weight:700}
.tile.warn .v{color:#b42a63}
.tile.good .v{color:#12704f}
.legend{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;font-weight:800;color:var(--ink-soft);align-items:center}
.legend i{display:inline-block;width:14px;height:14px;border-radius:4px;margin-right:5px;vertical-align:-2px}
.c-mastered{background:var(--mint)} .c-ok{background:var(--sun)} .c-shaky{background:#ff6b6b} .c-unseen{background:var(--muted)}
/* table mastery strip */
.tstrip{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:4px;align-items:end;min-height:150px}
.tstrip button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:4px 2px;border-radius:10px;font-weight:800;color:var(--ink-soft);font-size:12px;min-width:0}
.tstrip button:hover{background:var(--panel-2)}
.tstrip .col{width:100%;height:100px;background:var(--panel-2);border-radius:8px;display:flex;align-items:flex-end;overflow:hidden}
.tstrip .col i{display:block;width:100%;border-radius:8px 8px 0 0;min-height:3px}
.tstrip .pct{font-family:var(--display);font-weight:700;color:var(--ink);font-size:13px}
.tstrip .n{font-family:var(--display);font-weight:600;font-size:14px;color:var(--ink)}
/* skills */
.skills{display:flex;flex-direction:column;gap:10px}
.skill{display:grid;grid-template-columns:120px 1fr auto;gap:10px;align-items:center;font-weight:800;font-size:14px}
.skill .lbl{color:var(--ink)}
.skill .bar{height:14px;background:var(--panel-2);border-radius:999px;overflow:hidden;display:block}
.skill .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--mint),var(--grape))}
.skill .val{color:var(--ink-soft);font-variant-numeric:tabular-nums;white-space:nowrap;min-width:52px;text-align:right}
.skill.none .bar i{background:var(--muted)}
@media (max-width:500px){.skill{grid-template-columns:90px 1fr auto;font-size:13px}}
/* flags */
.flag{display:inline-flex;align-items:center;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:800;white-space:nowrap}
.flag.struggling{background:#ffe0ec;color:#b42a63} .flag.inactive{background:var(--panel-3);color:var(--ink-soft)}
.flag.stuck{background:var(--sun-soft);color:#7a5a00} .flag.behind{background:var(--grape-soft);color:var(--grape-deep)}
/* needs-help cards */
.helpcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.hcard{background:var(--panel-2);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:8px;border-left:6px solid var(--gum)}
.hcard .nm{font-family:var(--display);font-weight:700;font-size:18px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.hcard .why{font-size:14px;color:var(--ink-soft);font-weight:700}
.hcard .facts{display:flex;gap:6px;flex-wrap:wrap}
.hcard .facts span{background:#fff;border-radius:8px;padding:2px 8px;font-family:var(--display);font-weight:600;font-size:14px}
/* heatmap */
.heatwrap{overflow-x:auto;padding-bottom:4px}
.heat{display:grid;grid-template-columns:28px repeat(12,minmax(26px,1fr));gap:3px;min-width:380px}
.heat .h{font-size:11px;font-weight:800;color:var(--ink-faint);display:grid;place-items:center;font-family:var(--display)}
.heat .cell{aspect-ratio:1;border-radius:6px;background:var(--muted);cursor:pointer;border:0;padding:0;min-width:0;transition:transform .08s}
.heat .cell:hover,.heat .cell.sel{transform:scale(1.15);outline:2px solid var(--ink);z-index:1}
.heat .cell.mastered{background:var(--mint)} .heat .cell.ok{background:var(--sun)} .heat .cell.shaky{background:#ff6b6b} .heat .cell.unseen{background:var(--muted)}
.heatcap{min-height:22px;font-weight:800;color:var(--ink-soft);font-size:14px;margin-top:6px}
/* hardest facts */
.hardest{display:flex;flex-direction:column;gap:6px;margin:0;padding:0;list-style:none}
.hardest li{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;background:var(--panel-2);border-radius:12px;padding:8px 12px;font-weight:800;font-size:14px}
.hardest li .f{font-family:var(--display);font-weight:700;font-size:20px;color:var(--ink)}
.hardest li .who{color:var(--ink-faint);font-size:12px;font-weight:700}
.hardest li .m{color:#b42a63;white-space:nowrap}
/* trend */
.trend{width:100%;height:170px;display:block}
.trendlegend{display:flex;gap:14px;font-size:12px;font-weight:800;color:var(--ink-soft)}
.trendlegend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-1px}
/* students table extras */
.minis{display:inline-flex;gap:2px;align-items:flex-end;height:18px}
.minis i{display:inline-block;width:7px;border-radius:2px;background:var(--grape);min-height:2px}
.minis i.none{background:var(--muted)}
.tbl tr.clickable{cursor:pointer}
.tbl tr.clickable:hover td{background:var(--panel-2)}
.shakyn{font-weight:800;color:#b42a63}
/* student page */
.studhead{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;flex-wrap:wrap}
.studhead .id{display:flex;gap:14px;align-items:center}
.studhead .bigav{width:64px;height:64px;border-radius:20px;background:var(--panel-2);display:grid;place-items:center;font-size:36px;flex:none}
.studhead h1{font-size:28px}
.tgrid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
@media (max-width:900px){.tgrid{grid-template-columns:repeat(4,1fr)}}
@media (max-width:520px){.tgrid{grid-template-columns:repeat(3,1fr)}}
.tcard{background:var(--panel-2);border-radius:14px;padding:10px;display:flex;flex-direction:column;gap:4px;align-items:center;text-align:center;border-top:5px solid var(--muted)}
.tcard.m3,.tcard.m2{border-top-color:var(--mint)} .tcard.m1{border-top-color:var(--sun)} .tcard.m0{border-top-color:var(--muted)}
.tcard .n{font-family:var(--display);font-weight:700;font-size:22px}
.tcard .st{color:var(--sun-deep);letter-spacing:1px;font-size:15px}
.tcard .w{font-size:12px;color:var(--ink-faint);font-weight:800;display:flex;gap:4px;flex-wrap:wrap;justify-content:center}
.tcard .acc{font-size:12px;color:var(--ink-soft);font-weight:800}
.tricky{display:flex;flex-direction:column;gap:6px}
.tricky .t{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;background:var(--panel-2);border-radius:12px;padding:8px 12px;font-weight:800;font-size:14px}
.tricky .t .f{font-family:var(--display);font-weight:700;font-size:20px}
.tricky .t .m{color:#b42a63}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{background:var(--sun-soft);color:#7a5a00;border-radius:999px;padding:4px 12px;font-weight:800;font-size:13px}
/* practice sheet (print) */
.sheet{max-width:760px;margin:0 auto;font-family:var(--body);color:#111}
.sheet h1{font-family:var(--display);font-size:26px;margin-bottom:4px}
.sheet .meta{display:flex;gap:30px;margin:10px 0 18px;font-weight:800}
.sheet .meta span{border-bottom:2px solid #333;min-width:220px;display:inline-block;padding-bottom:2px}
.sheet .facts{display:grid;grid-template-columns:1fr 1fr;gap:14px 40px;font-size:24px;font-family:var(--display);font-weight:600}
.sheet .facts div{display:flex;align-items:baseline;gap:8px}
.sheet .facts .blank{display:inline-block;width:80px;border-bottom:2px solid #333}
.sheet .key{page-break-before:always;break-before:page;margin-top:30px}
.sheet .key ol{columns:2;font-family:var(--display);font-size:18px;font-weight:600}
.sheet .foot{margin-top:22px;font-size:12px;color:#666;font-weight:700}
@media print{ .sheet .key{page-break-before:always} }

/* === responsive tables (no side scroll) === */
table.tbl.students,table.tbl.fixed{table-layout:fixed;width:100%}
table.tbl.students td,table.tbl.fixed td{white-space:normal;overflow-wrap:anywhere;vertical-align:middle}
table.tbl.students th{white-space:normal;line-height:1.1}
.who{display:flex;align-items:center;gap:8px;min-width:0}
.who .avatar{flex:none}
.who .whotxt{display:flex;flex-direction:column;min-width:0;line-height:1.2}
.who .whotxt b{font-weight:800;overflow-wrap:anywhere}
.who .sub{font-size:12px;color:var(--ink-faint);font-weight:700;display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.who .pweye{border:0;background:none;cursor:pointer;font-size:13px;padding:0 2px;line-height:1}
.mastery.two{grid-template-columns:repeat(6,11px)}
.skavg{display:inline-block;min-width:34px;text-align:center;padding:2px 6px;border-radius:999px;font-weight:800;font-size:13px;background:var(--panel-3)}
.skavg.s3{background:var(--mint-soft,#dff8ef);color:#0f6b4a} .skavg.s2{background:var(--sun-soft,#fff3c4);color:#7a5a00} .skavg.s1{background:#ffe0ec;color:#b42a63}
.flags{display:flex;flex-wrap:wrap;gap:4px}
.work{display:flex;flex-direction:column;align-items:flex-end;line-height:1.15}
.tbl .more{width:30px;height:30px;border-radius:8px;font-size:16px}
td{position:relative}
.rowmenu{position:absolute;right:8px;top:calc(100% - 6px);z-index:20;background:var(--cloud);border-radius:12px;box-shadow:0 8px 24px rgba(43,35,80,.18),0 0 0 1px var(--line);display:flex;flex-direction:column;min-width:190px;padding:6px;text-align:left}
.rowmenu button{text-align:left;padding:9px 12px;border-radius:8px;font-weight:800;font-size:14px;background:none;border:0;cursor:pointer;color:var(--ink)}
.rowmenu button:hover{background:var(--panel-2)}
.rowmenu button.danger{color:#b42a2a}
.sortbar{display:none;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.sortbar .input.small{padding:6px 8px;font-size:14px;width:auto;display:inline-block;margin-left:6px}
.btn.small{padding:6px 12px;font-size:14px;min-height:36px}
/* hide less important columns as width shrinks */
@media (max-width:1100px){ .hide-md{display:none !important} }
@media (max-width:760px){ .hide-sm{display:none !important} }
/* card mode for the students table */
@media (max-width:900px){
  .sortbar{display:flex}
  table.tbl.students,table.tbl.students tbody,table.tbl.students tr,table.tbl.students td{display:block;width:100%}
  table.tbl.students colgroup,table.tbl.students thead{display:none}
  table.tbl.students tr{background:var(--cloud);border:1px solid var(--line);border-radius:14px;padding:10px 12px;margin-bottom:10px;box-shadow:0 2px 0 var(--line)}
  table.tbl.students tr:hover td{background:transparent}
  table.tbl.students td{border:0;padding:4px 0;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:10px}
  table.tbl.students td.num{text-align:left}
  table.tbl.students td::before{content:attr(data-l);font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--ink-faint);font-weight:800;flex:none}
  table.tbl.students td[data-l=""]::before{content:"Actions"}
  table.tbl.students td[data-l="Student"]{padding-bottom:8px;border-bottom:1px dashed var(--line);margin-bottom:4px}
  table.tbl.students td[data-l="Student"]::before{display:none}
  .work{align-items:flex-end}
  .rowmenu{right:0}
}
table.tbl.fixed th{white-space:normal;line-height:1.1;padding:8px 6px}
table.tbl.fixed td{padding:8px 6px}
table.tbl.fixed .nowrap{white-space:normal}
table.tbl.fixed .tnum,table.tbl.fixed td.num{white-space:normal;overflow-wrap:anywhere}
table.tbl.fixed td>*{max-width:100%}
table.tbl.fixed td{overflow:hidden}
.tablewrap:has(> table.tbl.fixed){overflow-x:hidden}
table.tbl.fixed td:last-child{overflow:visible}
table.tbl.fixed .actions{flex-wrap:wrap;gap:3px}