/* Carlito: a free font with the same letter shapes as Calibri. Used on devices without Calibri. */
@font-face{font-family:Carlito;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/carlito-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:Carlito;font-style:italic;font-weight:400;font-display:swap;src:url(/fonts/carlito-latin-400-italic.woff2) format('woff2')}
@font-face{font-family:Carlito;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/carlito-latin-700-normal.woff2) format('woff2')}

:root{
  /* Sooner look (platform/shared/sooner/sooner.css loads after this file). The old names stay, so the pages need no change:
     "blue" is now the Classroom Facilitator teal. --blue is the darker teal for text and lines (5.5:1 on the pale tint);
     buttons are filled with --app (#16818D), which keeps white text readable. */
  --ink:#1D2230; --ink-2:#3F4654; --ink-3:#5F6673;
  --ground:#F6F5F1; --paper:#FFFFFF; --line:#E3E5EA; --line-2:#EEF0F3; --soft:#F3F4F6;
  --blue:#0F6A74; --blue-deep:#0B545C; --blue-tint:#E3F3F4;
  --app:#16818D; --app-soft:#E3F3F4;
  --purple:#6B4FA8; --purple-tint:#F1ECFA;
  --ok:#2A7530; --ok-tint:#E6F3E7; --warn:#8A5300; --warn-tint:#FFF3DC; --bad:#B3261E; --bad-tint:#FCE9E8;
  --mark:#FFE58A;
  --field-line:#8A8A8A; /* form field borders: 3:1 or more against white (WCAG 1.4.11) */
  --sans:"Plus Jakarta Sans",Carlito,Calibri,"Segoe UI",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --r:14px; --shadow:0 1px 2px rgba(29,34,48,.06),0 4px 16px rgba(29,34,48,.06);
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--ground);color:var(--ink);font:16px/1.5 var(--sans);-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--blue)}
main a:not([class]){color:var(--blue)} /* darker than the Sooner link colour, so links stay readable on the off-white page */
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:700;text-wrap:balance}
h1{font-size:1.6rem;font-weight:800;letter-spacing:-.01em} h2{font-size:1.2rem} h3{font-size:1.05rem}
p{margin:0}
mark{background:var(--mark);color:inherit;border-radius:2px;padding:0 1px}
.muted{color:var(--ink-3)} .small{font-size:.88rem} .tiny{font-size:.78rem}
.label{font-size:.74rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-3)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row.end{justify-content:flex-end}
.spacer{flex:1}
.stack{display:flex;flex-direction:column;gap:12px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1.5px solid #C9CDD6;background:var(--paper);border-radius:999px;padding:8px 16px;min-height:40px;font-weight:600;font-size:.95rem;line-height:1.2;white-space:nowrap;text-decoration:none;color:var(--ink);transition:background-color .15s ease,box-shadow .15s ease}
.btn:hover{border-color:var(--ink-3);background:var(--soft)}
.btn.primary{background:var(--app);border-color:var(--app);color:#fff}
.btn.primary:hover{background:var(--blue);border-color:var(--blue);box-shadow:var(--shadow)}
.btn.go{background:var(--ok);border-color:var(--ok);color:#fff}
.btn.go:hover{background:#215E26;border-color:#215E26}
.btn.danger{color:var(--bad)} .btn.danger:hover{border-color:var(--bad)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.ghost:hover{background:var(--soft)}
.btn.sm{padding:5px 12px;min-height:32px;font-size:.85rem}
.btn.lg{padding:12px 26px;min-height:50px;font-size:1.05rem}
@media (prefers-reduced-motion:reduce){.btn{transition:none}}
.btn:disabled{opacity:.5;cursor:not-allowed}
.icon-btn{border:1.5px solid var(--line);background:var(--paper);border-radius:10px;width:36px;height:36px;color:var(--ink);display:inline-grid;place-items:center;padding:0}
.icon-btn:hover{border-color:var(--ink-3)}
.icon-btn:disabled{opacity:.4;cursor:not-allowed}

/* form fields */
.field{display:flex;flex-direction:column;gap:4px}
.field > span{font-weight:700;font-size:.92rem}
.field small{color:var(--ink-3)}
input[type=text],input[type=password],input[type=email],input[type=url],input[type=number],input[type=search],select,textarea{border:1.5px solid var(--field-line);background:var(--paper);border-radius:10px;padding:9px 12px;min-height:42px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid var(--blue);outline-offset:-1px;border-color:var(--blue)}
input:focus-visible,select:focus-visible,textarea:focus-visible{box-shadow:none} /* the teal outline above is the focus ring for fields */
textarea{resize:vertical;line-height:1.5}
.check{display:inline-flex;gap:8px;align-items:center;cursor:pointer;font-size:.95rem}
.check input{width:18px;height:18px;accent-color:var(--blue)}

/* cards */
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.card-h{display:flex;align-items:center;gap:10px;padding:14px 20px;border-bottom:1px solid var(--line-2);flex-wrap:wrap}
.card-h h2,.card-h h3{font-size:1.08rem}
.card-b{padding:18px 20px}
.empty{padding:22px;text-align:center;color:var(--ink-3);font-size:.95rem}

/* pills */
.pill{display:inline-flex;align-items:center;gap:5px;font-size:.8rem;font-weight:700;border-radius:999px;padding:3px 11px;background:var(--soft);color:var(--ink-2);white-space:nowrap}
.pill.live{background:var(--ok-tint);color:var(--ok)}
.pill.open{background:var(--blue-tint);color:var(--blue)}
.pill.done{background:var(--ok-tint);color:var(--ok)}
.pill.warn{background:var(--warn-tint);color:var(--warn)}
.pill.purple{background:var(--purple-tint);color:var(--purple)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--line);display:inline-block;flex:none}
.dot.on{background:var(--ok)}

/* top bar: light, with a thin teal line under it (the Sooner look). The teacher's class strip is pale teal. */
.bar{background:var(--paper);color:var(--ink);border-bottom:1px solid var(--line);position:relative}
.bar::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:var(--app)}
#hdr.bar{background:var(--app-soft);border-bottom-color:#C9E5E8}
#hdr.bar::after{display:none}
.bar-in{max-width:1500px;margin:0 auto;padding:10px clamp(16px,3vw,32px);display:flex;gap:8px 16px;align-items:center;flex-wrap:wrap;min-height:60px}
.bar .name{font-weight:800;font-size:1.15rem;line-height:1.3}
.bar .sub{color:var(--ink-3);font-size:.9rem}
.brand-mark{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.85rem;color:var(--ink-2);white-space:nowrap}
.brand-mark img{width:28px;height:28px;display:block;flex:none}

/* modal */
.modal{position:fixed;inset:0;background:rgba(20,20,20,.5);display:grid;place-items:center;padding:16px;z-index:50}
.modal-box{background:var(--paper);border-radius:var(--r);width:min(640px,100%);max-height:calc(100vh - 32px);display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal-box.wide{width:min(1100px,100%);height:calc(100vh - 32px)}
.modal-h{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line-2)}
.modal-h h2{font-size:1.15rem;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.modal-b{padding:18px;overflow:auto;flex:1}
.modal-f{padding:12px 18px;border-top:1px solid var(--line-2);display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}

/* toast */
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 18px;border-radius:10px;font-weight:700;z-index:80;max-width:calc(100% - 32px);box-shadow:0 6px 24px rgba(0,0,0,.2)}
.toast.bad{background:var(--bad)}

/* document viewer */
.viewer{position:relative;background:#E9E9E9;border-radius:8px;overflow:hidden;display:grid;place-items:center}
.viewer canvas{display:block;background:#fff;box-shadow:0 1px 6px rgba(0,0,0,.15)}
.viewer .vmsg{color:var(--ink-3);padding:30px;text-align:center}
.slide-frame{aspect-ratio:16/9;width:100%}
.textslide{background:#fff;width:100%;height:100%;padding:5% 6%;overflow:auto;display:flex;flex-direction:column;gap:.6em;font-size:clamp(.9rem,1.6vw,1.3rem)}
.textslide p:first-child{font-weight:700;font-size:1.4em}
.docpage{background:#fff;width:100%;height:100%;overflow:auto;padding:28px clamp(16px,5%,56px);font-size:1rem;line-height:1.6}
.docpage h1,.docpage h2,.docpage h3{margin:1em 0 .4em}
.docpage p{margin:0 0 .8em}
.docpage table{border-collapse:collapse;margin:1em 0}
.docpage td,.docpage th{border:1px solid var(--line);padding:4px 8px}
.docpage img{max-width:100%}
.docpage pre{white-space:pre-wrap;font:inherit}
.pager{display:flex;align-items:center;gap:8px;padding:8px 12px;flex-wrap:wrap}
.pager .pnum{font-variant-numeric:tabular-nums;font-size:.92rem;color:var(--ink-2);min-width:80px;text-align:center}

/* file list */
.files{list-style:none;margin:0;padding:0}
.files li{display:flex;gap:10px;align-items:center;padding:9px 16px;border-top:1px solid var(--line-2)}
.files li:first-child{border-top:0}
.ftype{flex:none;width:40px;height:26px;border-radius:5px;display:grid;place-items:center;font-size:.66rem;font-weight:700;letter-spacing:.04em;color:#fff;background:var(--ink-3);text-transform:uppercase}
.ftype.pdf{background:#B3261E} .ftype.docx{background:#2B579A} .ftype.pptx{background:#C4461B} .ftype.link{background:var(--purple)} .ftype.img{background:#3E7C59}
.fname{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:left;background:none;border:0;padding:0;font-weight:700;color:var(--blue)}
.fname:hover{text-decoration:underline}

/* AI feedback */
.fb-wrap{padding:0 16px 12px}
.fb{background:var(--purple-tint);border-radius:8px;padding:12px 14px;font-size:.95rem}
.fb-h{font-weight:700;color:var(--purple);display:flex;gap:6px;align-items:center;margin-bottom:6px}
.fb ul{margin:4px 0 6px;padding-left:20px}
.fb.pending{display:flex;gap:10px;align-items:center;color:var(--purple)}
.spin{width:16px;height:16px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .8s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}

/* photos of answers */
.qr-panel{margin:0 16px 12px;padding:14px;border:1px dashed var(--line);border-radius:10px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:var(--soft)}
.qr-box{width:170px;height:170px;background:#fff;border-radius:8px;padding:6px;flex:none;display:grid;place-items:center}
.qr-box svg{width:100%;height:100%;display:block}
.qr-text{flex:1;min-width:200px;display:flex;flex-direction:column;gap:8px}
.qr-url{word-break:break-all;font-family:var(--mono);font-size:.78rem}
.photo-strip{display:flex;gap:10px;flex-wrap:wrap}
.photo-thumb{display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.photo-thumb img{display:block;height:130px;max-width:220px;object-fit:cover;border:1px solid var(--line);border-radius:8px;background:#fff}

/* drawing pad */
.draw-bar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:8px 16px;border-top:1px solid var(--line-2)}
.pad{padding:0 16px 12px}
.pad-tools{display:flex;gap:6px 14px;flex-wrap:wrap;align-items:center;padding:8px 0}
.pad-group{display:inline-flex;gap:6px;align-items:center}
.pad-col{width:28px;height:28px;border-radius:50%;border:2px solid var(--paper);background:var(--c);box-shadow:0 0 0 1px var(--line);padding:0}
.pad-col.on{box-shadow:0 0 0 2px var(--ink)}
.pad-size{width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:var(--paper);display:inline-grid;place-items:center;padding:0}
.pad-size i{display:block;border-radius:50%;background:var(--ink)}
.pad-size.on,.pad-btn.on{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.pad-btn{border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:4px 10px;font-size:.88rem;font-weight:700}
.pad canvas{display:block;width:100%;height:auto;aspect-ratio:1200/750;background:#fff;border:1px solid var(--line);border-radius:8px;touch-action:none;cursor:crosshair}
.pad-view{padding:10px 16px}
.pad-img{display:block;max-width:100%;height:auto;border:1px solid var(--line);border-radius:8px;background:#fff}

@media (max-width:640px){
  body{font-size:16px}
  .card-b{padding:14px}
  .modal{padding:0}
  .modal-box,.modal-box.wide{width:100%;height:100%;max-height:none;border-radius:0}
}
@media print{
  .bar,.sooner-bar,.noprint{display:none!important}
  body{background:#fff}
  .card{box-shadow:none;border:0}
}
/* File choosers: hidden from sight but still reachable with the Tab key (WCAG 2.1.1). The label around them shows the focus ring. */
.file-in{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;opacity:0}
label:has(.file-in:focus-visible){outline:3px solid var(--blue);outline-offset:2px}
/* Focus ring: the Sooner amber ring (from sooner.css) on every button and link. */
.pad-col:focus-visible{box-shadow:var(--sooner-focus)}