/* poll.learndesign.tech — dark, geometric, colourful accents. */
@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@500;700&display=swap");

:root {
  --bg: #0b0d12; --bg2: #10131b; --surface: #161a25; --surface2: #1d2231; --line: #272d3d; --line2: #343b4f;
  --text: #e8eaf1; --muted: #8e94a8; --dim: #5d6478;
  --violet: #8b5cf6; --cyan: #22d3ee; --lime: #a3e635; --amber: #fbbf24; --pink: #f472b6; --coral: #fb7185; --sky: #60a5fa; --mint: #34d399;
  --accent: var(--violet);
  --ok: var(--lime); --bad: var(--coral);
  --cut: 12px; --cut-sm: 8px;
  --font: "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --shadow: 0 10px 40px rgba(0,0,0,.45);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font); color: var(--text); background: var(--bg);
  background-image:
    radial-gradient(900px 500px at 10% -10%, rgba(139,92,246,.18), transparent 60%),
    radial-gradient(700px 400px at 100% 0%, rgba(34,211,238,.12), transparent 60%),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255,255,255,.025) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(255,255,255,.025) 39px 40px);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased; line-height: 1.45;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .4em; line-height: 1.15; letter-spacing: -0.02em; font-weight: 600; }
h1 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 .8em; }
code, .mono { font-family: var(--mono); }
button, input, select, textarea { font: inherit; color: inherit; }
input, select, textarea {
  background: var(--bg2); border: 1px solid var(--line2); padding: .6rem .75rem; width: 100%; outline: none; border-radius: 0;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(139,92,246,.25); }
textarea { resize: vertical; min-height: 4rem; }
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .3rem; }
.field { margin-bottom: .9rem; }
.row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.row > * { min-width: 0; }
.grow { flex: 1 1 auto; }
.between { justify-content: space-between; }
.muted { color: var(--muted); }
.dim { color: var(--dim); }
.small { font-size: .85rem; }
.hidden { display: none !important; }
.sr { position: absolute; left: -9999px; }

.cut { clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut)); }
.cut-sm { clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm)); }

.wrap { max-width: 1080px; margin: 0 auto; padding: 1.2rem 16px 4rem; }
.wrap.narrow { max-width: 560px; }
.wrap.wide { max-width: 1400px; }

/* header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .8rem 0 1.4rem; }
.brand { font-weight: 700; letter-spacing: -0.02em; color: var(--text); font-size: 1.05rem; display: inline-flex; align-items: center; gap: .5rem; }
.brand:hover { text-decoration: none; }
.brand .mark { width: 22px; height: 22px; background: linear-gradient(135deg, var(--violet), var(--cyan)); clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); }
.brand span { color: var(--violet); }
.top nav { display: flex; gap: 1rem; align-items: center; font-size: .92rem; }
.top nav a { color: var(--muted); white-space: nowrap; }
.top nav a:hover { color: var(--text); text-decoration: none; }
.top nav a.pill { color: var(--text); border: 1px solid var(--line2); padding: .35rem .8rem; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem; cursor: pointer; border: 1px solid var(--line2);
  background: var(--surface2); color: var(--text); padding: .6rem 1.1rem; font-weight: 500; line-height: 1.2; white-space: nowrap;
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
  transition: transform .08s, background .15s, filter .15s;
}
.btn:hover { filter: brightness(1.15); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: default; filter: none; transform: none; }
.btn.primary { background: var(--accent); border-color: transparent; color: #fff; }
.btn.cyan { background: var(--cyan); border-color: transparent; color: #05202a; }
.btn.lime { background: var(--lime); border-color: transparent; color: #17230a; }
.btn.amber { background: var(--amber); border-color: transparent; color: #2b1d02; }
.btn.danger { background: transparent; border-color: var(--coral); color: var(--coral); }
.btn.ghost { background: transparent; }
.btn.big { padding: 1rem 1.6rem; font-size: 1.15rem; }
.btn.sm { padding: .35rem .7rem; font-size: .85rem; }
.btn.block { width: 100%; }
.btn.icon { padding: .45rem .55rem; }

/* cards & panels */
.card { background: var(--surface); border: 1px solid var(--line); padding: 1.2rem; position: relative; }
.card.cut { border: none; }
.card.cut::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,.06), transparent 40%); pointer-events: none; }
.card + .card { margin-top: 1rem; }
.stack > * + * { margin-top: 1rem; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.tag { display: inline-block; font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; padding: .2rem .5rem; border: 1px solid var(--line2); color: var(--muted); }
.tag.violet { color: var(--violet); border-color: var(--violet); }
.tag.cyan { color: var(--cyan); border-color: var(--cyan); }
.tag.lime { color: var(--lime); border-color: var(--lime); }
.tag.amber { color: var(--amber); border-color: var(--amber); }
.tag.pink { color: var(--pink); border-color: var(--pink); }
.tag.coral { color: var(--coral); border-color: var(--coral); }
.error { color: var(--coral); font-size: .9rem; margin: .4rem 0; }
.notice { border-left: 3px solid var(--amber); padding: .6rem .9rem; background: rgba(251,191,36,.08); }
hr { border: 0; border-top: 1px solid var(--line); margin: 1.2rem 0; }

/* home tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.2rem; margin-top: 1.5rem; }
.tile { display: block; padding: 2rem 1.6rem; background: var(--surface); position: relative; color: var(--text); min-height: 230px; overflow: hidden; border: 1px solid var(--line); }
.tile:hover { text-decoration: none; border-color: var(--line2); }
.tile .shape { position: absolute; right: -30px; bottom: -30px; width: 190px; height: 190px; opacity: .22; transition: transform .3s, opacity .3s; }
.tile:hover .shape { transform: rotate(8deg) scale(1.06); opacity: .35; }
.tile h2 { font-size: 1.6rem; margin-top: .6rem; }
.tile p { color: var(--muted); max-width: 30ch; }
.tile .btn { margin-top: 1rem; }
.shape.diamond { background: var(--violet); clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); }
.shape.tri { background: var(--cyan); clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.shape.hex { background: var(--lime); clip-path: polygon(25% 5%, 75% 5%, 100% 50%, 75% 95%, 25% 95%, 0 50%); }
.shape.circle { background: var(--amber); border-radius: 50%; }

/* code display */
.code-big { font-family: var(--mono); font-size: clamp(2.6rem, 9vw, 6rem); letter-spacing: .12em; font-weight: 700; line-height: 1; color: #fff; }
.code-input { font-family: var(--mono); font-size: 2rem; letter-spacing: .3em; text-align: center; padding: .8rem; }

/* option colours + shapes */
.opt { --c: var(--violet); }
.opt[data-i="0"] { --c: var(--violet); } .opt[data-i="1"] { --c: var(--cyan); } .opt[data-i="2"] { --c: var(--lime); } .opt[data-i="3"] { --c: var(--amber); }
.opt[data-i="4"] { --c: var(--pink); } .opt[data-i="5"] { --c: var(--coral); } .opt[data-i="6"] { --c: var(--sky); } .opt[data-i="7"] { --c: var(--mint); }
.opt[data-i="8"] { --c: var(--violet); } .opt[data-i="9"] { --c: var(--cyan); } .opt[data-i="10"] { --c: var(--lime); } .opt[data-i="11"] { --c: var(--amber); }
.shape-i { width: 1.1em; height: 1.1em; flex: 0 0 auto; background: var(--c); }
.shape-i.s0 { clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); }
.shape-i.s1 { clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.shape-i.s2 { border-radius: 50%; }
.shape-i.s3 { }
.shape-i.s4 { clip-path: polygon(25% 5%, 75% 5%, 100% 50%, 75% 95%, 25% 95%, 0 50%); }
.shape-i.s5 { clip-path: polygon(50% 0, 100% 38%, 82% 100%, 18% 100%, 0 38%); }
.shape-i.s6 { clip-path: polygon(0 0, 100% 0, 50% 100%); }
.shape-i.s7 { clip-path: polygon(0 100%, 100% 100%, 100% 0); }

/* player answer grid */
.answers { display: grid; grid-template-columns: repeat(2, 1fr); gap: .7rem; margin-top: 1rem; }
.answers.one { grid-template-columns: 1fr; }
.answer {
  position: relative; display: flex; align-items: center; gap: .8rem; padding: 1.1rem 1rem; min-height: 5.2rem; text-align: left; cursor: pointer;
  background: var(--surface2); border: 2px solid var(--c); color: var(--text); font-size: 1.05rem; font-weight: 500; line-height: 1.25; overflow: hidden;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.answer::after { content: ""; position: absolute; inset: 0; background: var(--c); opacity: .1; pointer-events: none; }
.answer:hover { background: var(--line); }
.answer.picked { background: var(--c); color: #0b0d12; }
.answer.picked::after { opacity: 0; }
.answer.correct { box-shadow: inset 0 0 0 3px var(--lime); }
.answer.wrong { opacity: .35; }
.answer:disabled { cursor: default; }
.answer .shape-i { width: 1.4rem; height: 1.4rem; }
.answer.picked .shape-i { background: #0b0d12; }

/* results bars */
.bars { display: grid; gap: .7rem; margin-top: 1rem; }
.bar { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: .8rem; }
.bar .lbl { display: flex; align-items: center; gap: .6rem; min-width: 0; }
.bar .lbl .txt { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 34ch; }
.bar .track { height: 26px; background: var(--bg2); position: relative; clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px); }
.bar .fill { position: absolute; inset: 0 auto 0 0; background: var(--c); width: 0; transition: width .4s cubic-bezier(.2,.8,.2,1); }
.bar.correct .track { box-shadow: 0 0 0 2px var(--lime); }
.bar.dimmed { opacity: .45; }
.bar .n { font-family: var(--mono); min-width: 3ch; text-align: right; }
.bars.big .track { height: 44px; }
.bars.big .lbl { font-size: 1.2rem; }

/* wall of open responses */
.wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: .7rem; margin-top: 1rem; }
.note { background: var(--surface2); border-left: 4px solid var(--c, var(--violet)); padding: .8rem .9rem; animation: pop .25s ease-out; word-wrap: break-word; }
.note .who { font-size: .75rem; color: var(--muted); margin-top: .4rem; }
.note.hidden-note { opacity: .35; }
@keyframes pop { from { transform: scale(.94); opacity: 0; } to { transform: none; opacity: 1; } }

/* timer */
.timer { display: flex; align-items: center; gap: .6rem; font-family: var(--mono); font-size: 1.2rem; }
.timer .ring { width: 40px; height: 40px; border-radius: 50%; background: conic-gradient(var(--cyan) var(--p, 100%), var(--line) 0); display: grid; place-items: center; }
.timer .ring::after { content: ""; width: 30px; height: 30px; border-radius: 50%; background: var(--surface); }
.timer.low .ring { background: conic-gradient(var(--coral) var(--p, 100%), var(--line) 0); }

/* buzzer */
.buzz {
  width: min(78vw, 360px); aspect-ratio: 1; margin: 1.5rem auto; display: grid; place-items: center; cursor: pointer; user-select: none; -webkit-user-select: none;
  background: var(--surface2); border: 4px solid var(--line2); color: var(--muted); font-size: 1.6rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  clip-path: polygon(25% 3%, 75% 3%, 97% 50%, 75% 97%, 25% 97%, 3% 50%); transition: background .15s, transform .08s; touch-action: manipulation;
}
.buzz.armed { background: var(--coral); border-color: #fff; color: #fff; box-shadow: 0 0 60px rgba(251,113,133,.5); }
.buzz.locked { background: #2a1116; color: var(--coral); border-color: var(--coral); }
.buzz.won { background: var(--lime); color: #17230a; border-color: #fff; }
.buzz.placed { background: var(--amber); color: #2b1d02; }
.buzz:active { transform: scale(.97); }
.buzz-list { list-style: none; padding: 0; margin: 1rem 0 0; }
.buzz-list li { display: flex; justify-content: space-between; gap: 1rem; padding: .6rem .8rem; background: var(--surface2); margin-bottom: .4rem; border-left: 4px solid var(--line2); }
.buzz-list li:first-child { border-left-color: var(--lime); font-size: 1.2rem; }
.buzz-list .ms { font-family: var(--mono); color: var(--muted); }

/* host layout */
.host { display: grid; grid-template-columns: 1fr 320px; gap: 1.2rem; align-items: start; }
@media (max-width: 900px) { .host { grid-template-columns: 1fr; } }
.stage { background: var(--surface); border: 1px solid var(--line); padding: 1.4rem; min-height: 60vh; position: relative; }
.stage .prompt { font-size: clamp(1.4rem, 3vw, 2.2rem); margin: .4rem 0 1rem; }
.stage-bar { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.side { display: grid; gap: 1rem; }
.plist { list-style: none; padding: 0; margin: 0; max-height: 50vh; overflow: auto; }
.plist li { display: flex; align-items: center; gap: .5rem; padding: .35rem .2rem; border-bottom: 1px solid var(--line); font-size: .92rem; }
.plist .dot { width: 8px; height: 8px; background: var(--lime); flex: 0 0 auto; }
.plist .dot.off { background: var(--dim); }
.plist .score { margin-left: auto; font-family: var(--mono); color: var(--muted); }
.plist .kick { opacity: 0; background: none; border: 0; color: var(--coral); cursor: pointer; }
.plist li:hover .kick { opacity: 1; }
.lobby-names { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.lobby-names span { background: var(--surface2); padding: .35rem .7rem; animation: pop .25s ease-out; }
.itemstrip { display: flex; gap: .4rem; flex-wrap: wrap; }
.itemstrip button { width: 34px; height: 34px; border: 1px solid var(--line2); background: var(--bg2); color: var(--muted); cursor: pointer; font-family: var(--mono); font-size: .8rem; }
.itemstrip button.on { background: var(--accent); color: #fff; border-color: transparent; }
.itemstrip button.done { border-color: var(--violet); }
.leader { list-style: none; padding: 0; margin: 0; counter-reset: lb; }
.leader li { display: flex; gap: .8rem; align-items: center; padding: .7rem .9rem; background: var(--surface2); margin-bottom: .4rem; font-size: 1.1rem; counter-increment: lb; animation: pop .3s ease-out; }
.leader li::before { content: counter(lb); font-family: var(--mono); color: var(--muted); width: 2ch; }
.leader li:nth-child(1) { border-left: 4px solid var(--amber); }
.leader li:nth-child(2) { border-left: 4px solid var(--cyan); }
.leader li:nth-child(3) { border-left: 4px solid var(--lime); }
.leader .pts { margin-left: auto; font-family: var(--mono); }

/* player chrome */
.play-top { display: flex; align-items: center; justify-content: space-between; gap: .6rem; padding: .7rem 0; font-size: .9rem; color: var(--muted); }
.play-top .me { color: var(--text); font-weight: 500; }
.conn { width: 9px; height: 9px; background: var(--lime); display: inline-block; }
.conn.off { background: var(--coral); animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .3; } }
.center { text-align: center; padding: 3rem 0; }
.center .big { font-size: 1.5rem; }
.feedback { padding: 1.2rem; margin-top: 1rem; text-align: center; font-size: 1.2rem; }
.feedback.good { background: rgba(163,230,53,.15); border: 1px solid var(--lime); }
.feedback.bad { background: rgba(251,113,133,.15); border: 1px solid var(--coral); }
.feedback .pts { font-family: var(--mono); font-size: 2rem; display: block; }

/* builder */
.builder { display: grid; grid-template-columns: 280px 1fr; gap: 1.2rem; align-items: start; }
@media (max-width: 860px) { .builder { grid-template-columns: 1fr; } }
.ilist { list-style: none; padding: 0; margin: 0; }
.ilist li { display: flex; align-items: center; gap: .5rem; padding: .55rem .6rem; border: 1px solid var(--line); margin-bottom: .4rem; cursor: pointer; background: var(--surface); }
.ilist li.on { border-color: var(--accent); background: var(--surface2); }
.ilist .n { font-family: var(--mono); color: var(--dim); font-size: .8rem; width: 2ch; }
.ilist .t { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .92rem; }
.ilist .ty { font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.addbar { display: grid; grid-template-columns: 1fr 1fr; gap: .4rem; margin-top: .8rem; }
.addbar .btn { font-size: .85rem; padding: .5rem .4rem; }
.optrow { display: grid; grid-template-columns: auto 1fr auto auto; gap: .5rem; align-items: center; margin-bottom: .5rem; }
.optrow .chk { width: auto; }
.optrow .shape-i { width: 1.2rem; height: 1.2rem; }
.check { display: inline-flex; align-items: center; gap: .5rem; cursor: pointer; }
.check input { width: auto; }
.alist { list-style: none; padding: 0; margin: 0; }
.alist li { display: flex; align-items: center; gap: .8rem; padding: .8rem 1rem; background: var(--surface); border: 1px solid var(--line); margin-bottom: .5rem; }
.alist .title { flex: 1; font-weight: 500; }
.alist .meta { color: var(--muted); font-size: .85rem; }

.toast { position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%); background: var(--surface2); border: 1px solid var(--line2); padding: .7rem 1.1rem; z-index: 50; box-shadow: var(--shadow); animation: pop .2s; max-width: calc(100vw - 32px); }
.toast.bad { border-color: var(--coral); }

.fullscreen-toggle { position: absolute; top: .8rem; right: .8rem; }
.stage:fullscreen { padding: 3vw; background: var(--bg); }
.stage:fullscreen .prompt { font-size: 3.4vw; }
.stage:fullscreen .bars.big .track { height: 5vw; }

@media (max-width: 600px) {
  .wrap { padding-top: .6rem; }
  .answers { gap: .5rem; }
  .answer { min-height: 4.4rem; font-size: 1rem; padding: .9rem .8rem; }
}