/* Shared styles for the classroom games portfolio.
   Tokens follow the parent site (anirbanghatak.com). */
:root{
  --paper:#FBFAF6;
  --paper-2:#F3F0E8;
  --card:#FFFFFF;
  --ink:#17181F;
  --ink-soft:#565567;
  --line:#E2DED2;
  --line-strong:#CFC9B9;
  --row:#263A6B;
  --row-tint:#7E93C8;
  --row-wash:#EDF0F8;
  --col:#8C5E17;
  --col-tint:#C79A4A;
  --col-wash:#FAF3E4;
  --good:#3D6B4E;
  --good-wash:#EEF4EE;
  --bad:#9B2C2C;
  --bad-wash:#FBEEEC;

  --serif:'Spectral',Georgia,'Times New Roman',serif;
  --sans:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
  --wrap:1080px;
  --radius:10px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.55;
}
a{color:var(--row);text-underline-offset:3px}
a:hover{color:var(--ink)}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.2;margin:0;text-wrap:balance}
h1{font-size:clamp(2rem,5vw,3rem);letter-spacing:-.01em}
h2{font-size:1.5rem}
h3{font-size:1.15rem}
p{margin:0 0 .8em}
p:last-child{margin-bottom:0}
[hidden]{display:none !important}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.narrow{max-width:560px}

/* top bar */
.bar{border-bottom:1px solid var(--line);background:var(--paper)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.mark{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:1.15rem;font-weight:500;color:var(--ink);text-decoration:none}
.mark svg{width:26px;height:26px;flex:none}
.bar nav{display:flex;align-items:center;gap:18px;font-size:.92rem;flex-wrap:wrap}
.bar nav a{text-decoration:none}
.bar nav a:hover{text-decoration:underline}

.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-soft)}
.muted{color:var(--ink-soft)}
.small{font-size:.88rem}
.mono{font-family:var(--mono)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* cards and layout */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card > h2,.card > h3{margin-bottom:12px}
.stack > * + *{margin-top:16px}
.grid{display:grid;gap:16px}
@media (min-width:760px){
  .grid.two{grid-template-columns:1fr 1fr}
  .grid.three{grid-template-columns:repeat(3,1fr)}
}
.rowflex{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spread{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}

/* forms */
label{display:block;font-size:.88rem;font-weight:500;margin-bottom:5px}
.hint{font-size:.82rem;color:var(--ink-soft);margin-top:4px}
input[type=text],input[type=email],input[type=password],input[type=number],select{
  width:100%;font:inherit;font-size:16px;color:var(--ink);background:#fff;
  border:1px solid var(--line-strong);border-radius:8px;padding:10px 12px;min-height:44px;
}
input:focus-visible,select:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--row);outline-offset:2px}
.field + .field{margin-top:14px}
.fields > .field{margin-top:0}
.fields{display:grid;gap:14px}
@media (min-width:620px){.fields.cols2{grid-template-columns:1fr 1fr}.fields.cols3{grid-template-columns:repeat(3,1fr)}}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.94rem;font-weight:400;margin:0}
.stack > * + .check{margin-top:14px}
.stack > .check + .check{margin-top:10px}
.check input{width:18px;height:18px;margin-top:3px;flex:none;accent-color:var(--row)}
fieldset{border:0;padding:0;margin:0}
legend{font-family:var(--mono);font-size:.74rem;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-soft);padding:0;margin-bottom:12px}

button,.btn{
  font:inherit;font-weight:500;cursor:pointer;border-radius:8px;min-height:44px;padding:9px 18px;
  border:1px solid var(--line-strong);background:#fff;color:var(--ink);text-decoration:none;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
button:hover,.btn:hover{border-color:var(--ink);color:var(--ink)}
button.primary,.btn.primary{background:var(--row);border-color:var(--row);color:#fff}
button.primary:hover,.btn.primary:hover{background:#1B2B52;border-color:#1B2B52;color:#fff}
button.danger{color:var(--bad);border-color:#E3BDB8}
button.danger:hover{background:var(--bad-wash);border-color:var(--bad)}
button.quiet{border-color:transparent;background:transparent;color:var(--row);padding:6px 8px;min-height:36px}
button.quiet:hover{background:var(--row-wash)}
button.sm,.btn.sm{min-height:34px;padding:4px 12px;font-size:.86rem}
button.big{min-height:54px;font-size:1.08rem;padding:12px 26px}
button:disabled{opacity:.5;cursor:not-allowed}
.block{width:100%}

.msg{border-radius:8px;padding:10px 14px;font-size:.92rem;border:1px solid}
.msg.err{background:var(--bad-wash);border-color:#E3BDB8;color:var(--bad)}
.msg.ok{background:var(--good-wash);border-color:#C9DCCB;color:var(--good)}
.msg.info{background:var(--row-wash);border-color:#CDD5EA;color:var(--row)}

.pill{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;
  padding:3px 10px;border-radius:999px;border:1px solid var(--line-strong);color:var(--ink-soft);background:var(--paper);white-space:nowrap}
.pill.open{color:var(--good);border-color:#C9DCCB;background:var(--good-wash)}
.pill.closed{color:var(--col);border-color:#E8D6B0;background:var(--col-wash)}
.pill.lobby{color:var(--row);border-color:#CDD5EA;background:var(--row-wash)}
.pill.soon{color:var(--ink-soft)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor}

/* tables */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{border-collapse:collapse;width:100%;font-size:.92rem}
th{font-family:var(--mono);font-size:.72rem;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-soft);font-weight:500;text-align:left;
  padding:10px 12px;border-bottom:1px solid var(--line);background:var(--paper);white-space:nowrap}
td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:0}
td.r,th.r{text-align:right}
tr.me td{background:var(--row-wash);font-weight:500}
tr.off td{color:var(--ink-soft);text-decoration:line-through}

/* stat tiles */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px}
.stat{border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--paper)}
.stat .k{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.stat .v{font-family:var(--serif);font-size:1.7rem;line-height:1.15;margin-top:2px;font-variant-numeric:tabular-nums}
.stat.hl{background:var(--col-wash);border-color:#E8D6B0}
.stat.hl .v{color:var(--col)}
.stat.me{background:var(--row-wash);border-color:#CDD5EA}
.stat.me .v{color:var(--row)}

/* charts */
.chart{width:100%;height:auto;display:block}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.82rem;color:var(--ink-soft);margin-top:8px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{display:inline-block;width:14px;height:3px;border-radius:2px}

.code{font-family:var(--mono);font-weight:500;letter-spacing:.14em}
.progress{height:10px;border-radius:999px;background:var(--paper-2);overflow:hidden;border:1px solid var(--line)}
.progress > i{display:block;height:100%;background:var(--row);border-radius:999px;transition:width .4s ease}
@media (prefers-reduced-motion:reduce){.progress > i{transition:none}}

details > summary{cursor:pointer;font-weight:500}

/* student page */
main.play{max-width:720px}
.who{font-size:.9rem;color:var(--ink-soft)}
ol.rules{margin:0;padding-left:1.2em}
ol.rules li + li{margin-top:6px}
details[open] > summary{margin-bottom:10px}
.intro p{color:var(--ink-soft)}
.timer{font-family:var(--mono);font-size:1.3rem;font-variant-numeric:tabular-nums}
.timer.low{color:var(--bad)}
.guess input[type=number]{font-family:var(--mono);font-size:1.8rem;text-align:center;min-height:64px}
.choices{display:grid;gap:10px;grid-template-columns:1fr 1fr}
button.pick{min-height:64px;font-size:1.08rem;padding:10px 12px}
button.pick[aria-pressed=true]{background:var(--row);border-color:var(--row);color:#fff}
table.matrix th[scope=row]{background:var(--paper)}
table.matrix tr.now td,table.matrix tr.now th{background:var(--col-wash)}
table.matrix tr.past td{color:var(--ink-soft)}
table.matrix td{text-align:center}
table.matrix td.r,table.matrix th.r{text-align:right}
table.matrix .hl{background:var(--col-wash)}
table.matrix tr.me td{background:var(--row-wash)}
.clockprice{font-family:var(--serif);font-size:3.4rem;line-height:1.1;text-align:center;font-variant-numeric:tabular-nums;margin:4px 0}
.clockprice.under{color:var(--good)}
p.low{color:var(--bad)}
ul.log{margin:12px 0 0;padding:0;list-style:none;font-size:.92rem;color:var(--ink-soft);border-left:2px solid var(--line-strong)}
ul.log li{padding:2px 0 2px 12px}
.chatlog{max-height:240px;overflow-y:auto;border:1px solid var(--line);border-radius:8px;padding:10px;background:var(--paper);display:flex;flex-direction:column;gap:6px}
.bubble{max-width:85%;padding:6px 10px;border-radius:10px;background:#fff;border:1px solid var(--line);font-size:.94rem;align-self:flex-start;overflow-wrap:anywhere}
.bubble.mine{align-self:flex-end;background:var(--row-wash);border-color:#CDD5EA}
.bubble .from{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-soft)}

/* host page */
.layout{display:grid;gap:16px;align-items:start}
@media (min-width:980px){.layout{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}}
.col > * + *{margin-top:16px}
.joincard{text-align:center}
.joincard .code{font-size:2.6rem;line-height:1.1;margin:6px 0}
.joincard .url{font-family:var(--mono);font-size:.9rem;word-break:break-all}
.joincard svg{display:block;margin:12px auto 0;border:1px solid var(--line);border-radius:8px}
.host .timer{font-size:1.5rem}
.roundtabs{display:flex;gap:6px;flex-wrap:wrap}
.roundtabs button{min-height:32px;padding:2px 12px;font-family:var(--mono);font-size:.82rem}
.roundtabs button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.host ol.rules{font-size:.92rem}
.waiting{color:var(--col)}
.done{color:var(--good);font-weight:500}
/* projector view: nothing that identifies individual students beyond the leaderboard setting */
body.projector .host-only{display:none !important}
body.projector .joincard .code{font-size:3.6rem}
body.projector{font-size:18px}

footer.foot{border-top:1px solid var(--line);margin-top:56px;padding:24px 0 40px;font-size:.86rem;color:var(--ink-soft)}
footer.foot .wrap{display:flex;gap:12px 24px;justify-content:space-between;flex-wrap:wrap}
main.wrap{padding-top:32px}
@media (max-width:480px){
  .card{padding:18px 16px}
  table.compact th,table.compact td{padding:8px 6px;font-size:.84rem}
  table.compact th{font-size:.66rem;letter-spacing:.03em}
}
td.name{min-width:9em}
table.tight th,table.tight td{padding:8px 8px}
table.compact th,table.matrix th{white-space:normal}