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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CompTIA A+ · Competition Arena</title>
<link href="https://fonts.googleapis.com/css2?family=Barlow+Condensed:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,700&family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,700;1,400&family=Barlow:wght@300;400;500;600&display=swap" rel="stylesheet">
<style>
:root {
--bg:#050810;--s1:#07090f;--s2:#0b0e18;--s3:#0f1320;--s4:#141828;
--b1:#1a2038;--b2:#222a48;--b3:#2c3660;
--tx:#ccd4f0;--tx2:#6878a8;--tx3:#364060;--tx4:#1e2840;
--acc:#00c8ff;--acc2:#0088cc;--acc-d:rgba(0,204,255,0.1);
--grn:#00ff77;--grn2:#00cc5a;--grn-d:rgba(0,255,119,0.1);
--amb:#ffbb00;--amb2:#cc8800;--amb-d:rgba(255,187,0,0.1);
--red:#ff2255;--red-d:rgba(255,34,85,0.1);
--pur:#cc44ff;--pur-d:rgba(204,68,255,0.1);
--pnk:#ff44aa;--pnk-d:rgba(255,68,170,0.1);
--gold:#ffd700;--gold-d:rgba(255,215,0,0.12);
--silver:#c0c8e0;--silver-d:rgba(192,200,224,0.1);
--bronze:#cd7f32;--bronze-d:rgba(205,127,50,0.1);
--mono:'JetBrains Mono',monospace;
--display:'Barlow Condensed',sans-serif;
--sans:'Barlow',sans-serif;
--r:6px;--rl:12px;--rxl:20px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--tx);min-height:100vh;font-size:14px;overflow-x:hidden;-webkit-font-smoothing:antialiased}
/* Atmosphere */
body::before{content:'';position:fixed;inset:0;
background:radial-gradient(ellipse 100% 50% at 50% -5%,rgba(0,204,255,0.08) 0%,transparent 60%),
radial-gradient(ellipse 50% 40% at 0% 100%,rgba(204,68,255,0.06) 0%,transparent 50%),
radial-gradient(ellipse 40% 30% at 100% 60%,rgba(0,255,119,0.04) 0%,transparent 50%),
repeating-linear-gradient(0deg,transparent,transparent 59px,rgba(0,204,255,0.02) 59px,rgba(0,204,255,0.02) 60px),
repeating-linear-gradient(90deg,transparent,transparent 59px,rgba(0,204,255,0.02) 59px,rgba(0,204,255,0.02) 60px);
pointer-events:none;z-index:0}
.app{position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}
/* ── HEADER ── */
header{border-bottom:1px solid var(--b1);padding:0 24px;display:flex;align-items:center;gap:14px;background:rgba(3,4,10,0.96);backdrop-filter:blur(24px);position:sticky;top:0;z-index:400;height:52px;flex-shrink:0}
.logo{font-family:var(--mono);font-size:10px;font-weight:700;color:var(--acc);border:1px solid var(--acc);padding:4px 8px;border-radius:4px;background:var(--acc-d);letter-spacing:.5px;flex-shrink:0}
.htitle{font-family:var(--display);font-size:18px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--tx)}
.hsub{font-family:var(--mono);font-size:9px;color:var(--tx3);letter-spacing:.8px}
.hright{margin-left:auto;display:flex;align-items:center;gap:8px}
.hbadge{font-family:var(--mono);font-size:9px;padding:3px 10px;border-radius:20px;letter-spacing:.3px}
.hb-week{background:var(--acc-d);border:1px solid var(--acc);color:var(--acc)}
.hb-challenge{background:var(--amb-d);border:1px solid var(--amb);color:var(--amb);cursor:pointer;transition:all .15s}
.hb-challenge:hover{background:rgba(255,187,0,0.2)}
.back{font-family:var(--mono);font-size:9px;color:var(--tx2);background:var(--s2);border:1px solid var(--b1);padding:5px 12px;border-radius:5px;cursor:pointer;text-decoration:none;transition:all .15s}
.back:hover{border-color:var(--b2);color:var(--tx)}
/* ── NAV ── */
nav{display:flex;background:var(--s1);border-bottom:1px solid var(--b1);padding:0 20px;overflow-x:auto;flex-shrink:0}
nav::-webkit-scrollbar{height:2px}
.tab{padding:12px 16px;font-family:var(--display);font-size:12px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--tx3);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .2s;white-space:nowrap;flex-shrink:0}
.tab:hover{color:var(--tx2)}
.tab.active{color:var(--acc);border-bottom-color:var(--acc)}
.content{flex:1;overflow-y:auto}
.panel{display:none;flex-direction:column;gap:18px}
.panel.active{display:flex}
/* ── LEADERBOARD (PROJECTOR MODE) ── */
#panelLive{padding:20px;background:var(--bg)}
.live-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.live-title{font-family:var(--display);font-size:clamp(24px,4vw,40px);font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--tx)}
.live-title span{color:var(--acc)}
.live-week{font-family:var(--mono);font-size:10px;color:var(--tx3);letter-spacing:1px;margin-top:2px}
.projector-btn{padding:8px 16px;background:var(--pur-d);border:1px solid var(--pur);color:var(--pur);border-radius:var(--r);font-family:var(--display);font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;cursor:pointer;transition:all .15s}
.projector-btn:hover{background:rgba(204,68,255,0.2)}
/* Category tabs */
.cat-tabs{display:flex;gap:6px;margin-bottom:16px;flex-wrap:wrap}
.cat-tab{padding:7px 16px;border-radius:20px;border:1px solid var(--b2);color:var(--tx3);font-family:var(--display);font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;cursor:pointer;transition:all .2s}
.cat-tab:hover{border-color:var(--b3);color:var(--tx2)}
.cat-tab.active{border-color:var(--acc);color:var(--acc);background:var(--acc-d)}
/* Leaderboard rows */
.lb-grid{display:flex;flex-direction:column;gap:6px}
.lb-row{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:var(--rl);border:1px solid var(--b1);background:var(--s1);transition:all .3s;position:relative;overflow:hidden}
.lb-row::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px}
.lb-row.rank-1::before{background:var(--gold)}
.lb-row.rank-2::before{background:var(--silver)}
.lb-row.rank-3::before{background:var(--bronze)}
.lb-row.rank-1{background:linear-gradient(90deg,rgba(255,215,0,0.06),var(--s1));border-color:rgba(255,215,0,0.2)}
.lb-row.rank-2{background:linear-gradient(90deg,rgba(192,200,224,0.04),var(--s1));border-color:rgba(192,200,224,0.15)}
.lb-row.rank-3{background:linear-gradient(90deg,rgba(205,127,50,0.05),var(--s1));border-color:rgba(205,127,50,0.15)}
.lb-row.is-me{border-color:var(--acc);background:linear-gradient(90deg,rgba(0,204,255,0.05),var(--s1))}
.lb-rank{font-family:var(--display);font-size:28px;font-weight:900;min-width:48px;text-align:center;line-height:1}
.lb-row.rank-1 .lb-rank{color:var(--gold)}
.lb-row.rank-2 .lb-rank{color:var(--silver)}
.lb-row.rank-3 .lb-rank{color:var(--bronze)}
.lb-rank-icon{font-size:20px;min-width:32px;text-align:center}
.lb-name{font-family:var(--display);font-size:22px;font-weight:800;letter-spacing:.5px;color:var(--tx);flex:1}
.lb-row.is-me .lb-name{color:var(--acc)}
.lb-tag{font-family:var(--mono);font-size:9px;color:var(--tx3);background:var(--s3);border:1px solid var(--b1);padding:2px 7px;border-radius:3px}
.lb-score{font-family:var(--display);font-size:32px;font-weight:900;letter-spacing:-1px;min-width:100px;text-align:right}
.lb-row.rank-1 .lb-score{color:var(--gold)}
.lb-row.rank-2 .lb-score{color:var(--silver)}
.lb-row.rank-3 .lb-score{color:var(--bronze)}
.lb-bar-wrap{width:120px;height:4px;background:var(--b1);border-radius:2px;overflow:hidden;flex-shrink:0}
.lb-bar{height:100%;border-radius:2px;transition:width .8s ease}
.lb-change{font-family:var(--mono);font-size:10px;min-width:32px;text-align:right}
.lb-change.up{color:var(--grn)}
.lb-change.down{color:var(--red)}
.lb-change.same{color:var(--tx3)}
/* Ticker */
.ticker-wrap{background:var(--s1);border:1px solid var(--b1);border-radius:var(--r);padding:8px 14px;display:flex;align-items:center;gap:12px;margin-bottom:14px;overflow:hidden}
.ticker-label{font-family:var(--mono);font-size:8px;letter-spacing:1.5px;text-transform:uppercase;color:var(--acc);flex-shrink:0}
.ticker-scroll{flex:1;overflow:hidden;position:relative;height:18px}
.ticker-inner{display:flex;gap:40px;position:absolute;white-space:nowrap;animation:ticker 20s linear infinite}
.ticker-item{font-family:var(--mono);font-size:11px;color:var(--tx2)}
.ticker-item span{color:var(--amb)}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
/* Multi-board (all 5 categories) */
.multiboard{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.mb-col{background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);overflow:hidden}
.mb-header{padding:10px 12px;display:flex;flex-direction:column;gap:2px;border-bottom:1px solid var(--b1)}
.mb-header-icon{font-size:16px}
.mb-header-title{font-family:var(--display);font-size:12px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx)}
.mb-rows{padding:8px}
.mb-row{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:6px;margin-bottom:3px}
.mb-row.r1{background:var(--gold-d);border:1px solid rgba(255,215,0,0.2)}
.mb-row.r2{background:rgba(192,200,224,0.05);border:1px solid rgba(192,200,224,0.1)}
.mb-row.r3{background:var(--bronze-d);border:1px solid rgba(205,127,50,0.1)}
.mb-row-rank{font-family:var(--mono);font-size:9px;min-width:14px;color:var(--tx3)}
.mb-row.r1 .mb-row-rank{color:var(--gold)}
.mb-row.r2 .mb-row-rank{color:var(--silver)}
.mb-row.r3 .mb-row-rank{color:var(--bronze)}
.mb-row-name{font-family:var(--display);font-size:13px;font-weight:700;color:var(--tx);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mb-row-score{font-family:var(--mono);font-size:10px;font-weight:700}
.mb-row.r1 .mb-row-score{color:var(--gold)}
.mb-row.r2 .mb-row-score{color:var(--silver)}
.mb-row.r3 .mb-row-score{color:var(--bronze)}
/* ── NICKNAME SETUP ── */
.nickname-setup{max-width:500px;margin:0 auto;padding:48px 24px;text-align:center}
.ns-title{font-family:var(--display);font-size:36px;font-weight:900;text-transform:uppercase;letter-spacing:2px;color:var(--tx);margin-bottom:8px}
.ns-sub{font-size:13px;color:var(--tx2);line-height:1.7;margin-bottom:28px}
.ns-input-wrap{position:relative;margin-bottom:16px}
.ns-input{width:100%;font-family:var(--display);font-size:28px;font-weight:800;letter-spacing:2px;text-align:center;text-transform:uppercase;background:var(--s2);border:2px solid var(--b2);border-radius:var(--r);padding:16px;color:var(--acc);outline:none;transition:border-color .2s}
.ns-input:focus{border-color:var(--acc)}
.ns-input::placeholder{color:var(--tx4);font-size:20px}
.ns-code{font-family:var(--mono);font-size:10px;color:var(--tx3);margin-bottom:20px;letter-spacing:.5px}
.ns-rules{background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:12px 16px;font-family:var(--mono);font-size:10px;color:var(--tx3);line-height:2;text-align:left;margin-bottom:20px}
/* ── CHALLENGES ── */
#panelChallenges{padding:24px;max-width:900px;margin:0 auto}
.challenge-hero{background:linear-gradient(135deg,rgba(255,187,0,0.08),rgba(0,204,255,0.05));border:1px solid var(--amb);border-radius:var(--rxl);padding:24px;margin-bottom:20px;position:relative;overflow:hidden}
.challenge-hero::before{content:'WEEKLY CHALLENGE';position:absolute;top:14px;right:18px;font-family:var(--mono);font-size:8px;letter-spacing:2px;color:var(--tx4)}
.ch-status{font-family:var(--mono);font-size:10px;color:var(--amb);letter-spacing:1px;margin-bottom:8px}
.ch-title{font-family:var(--display);font-size:32px;font-weight:900;text-transform:uppercase;letter-spacing:1px;color:var(--tx);margin-bottom:6px;line-height:1.1}
.ch-desc{font-size:13px;color:var(--tx2);line-height:1.7;margin-bottom:16px}
.ch-reward{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;color:var(--gold)}
.ch-reward-icon{font-size:16px}
.ch-progress{margin-top:16px}
.ch-progress-label{font-family:var(--mono);font-size:9px;color:var(--tx3);letter-spacing:.8px;margin-bottom:6px;display:flex;justify-content:space-between}
.ch-bar{height:8px;background:var(--b1);border-radius:4px;overflow:hidden}
.ch-fill{height:100%;background:linear-gradient(90deg,var(--amb),var(--gold));border-radius:4px;transition:width .8s ease}
.ch-completers{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.ch-completer{font-family:var(--mono);font-size:9px;background:var(--amb-d);border:1px solid var(--amb);color:var(--amb);padding:2px 8px;border-radius:3px}
.challenge-list{display:flex;flex-direction:column;gap:10px}
.challenge-card{background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:16px;display:flex;gap:14px;align-items:flex-start}
.cc-icon{font-size:28px;flex-shrink:0}
.cc-info{flex:1}
.cc-title{font-family:var(--display);font-size:16px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx);margin-bottom:4px}
.cc-desc{font-size:12px;color:var(--tx2);line-height:1.6;margin-bottom:6px}
.cc-meta{display:flex;gap:8px;flex-wrap:wrap}
.cc-pts{font-family:var(--mono);font-size:10px;background:var(--gold-d);border:1px solid var(--gold);color:var(--gold);padding:2px 8px;border-radius:3px}
.cc-deadline{font-family:var(--mono);font-size:10px;color:var(--tx3)}
.cc-status{font-family:var(--mono);font-size:10px}
.cc-status.complete{color:var(--grn)}
.cc-status.active{color:var(--acc)}
.cc-action{flex-shrink:0;align-self:center}
/* Teacher challenge creator */
.challenge-creator{background:var(--s2);border:1px solid var(--b1);border-radius:var(--rl);padding:18px;margin-bottom:20px}
.cc-form{display:flex;flex-direction:column;gap:10px}
.cf-inp{background:var(--s3);border:1px solid var(--b1);border-radius:var(--r);padding:9px 12px;color:var(--tx);font-family:var(--sans);font-size:12px;outline:none;width:100%;transition:border-color .2s}
.cf-inp:focus{border-color:var(--acc)}
.cf-inp::placeholder{color:var(--tx3)}
.cf-row{display:flex;gap:8px;flex-wrap:wrap}
/* ── BOSS BATTLES ── */
#panelBoss{padding:24px;max-width:900px;margin:0 auto}
.boss-arena{background:linear-gradient(135deg,var(--red-d),rgba(204,68,255,0.06));border:1px solid var(--red);border-radius:var(--rxl);padding:28px;text-align:center;margin-bottom:20px;position:relative;overflow:hidden}
.boss-arena::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(45deg,transparent,transparent 20px,rgba(255,34,85,0.02) 20px,rgba(255,34,85,0.02) 21px)}
.boss-name{font-family:var(--display);font-size:clamp(28px,5vw,56px);font-weight:900;text-transform:uppercase;letter-spacing:3px;color:var(--red);margin-bottom:4px;position:relative;z-index:1}
.boss-hp-wrap{max-width:500px;margin:0 auto 16px;position:relative;z-index:1}
.boss-hp-bar{height:20px;background:var(--b1);border-radius:10px;overflow:hidden;border:1px solid var(--b2)}
.boss-hp-fill{height:100%;border-radius:10px;transition:width 1s ease;background:linear-gradient(90deg,var(--grn),var(--acc))}
.boss-hp-label{font-family:var(--display);font-size:14px;font-weight:700;color:var(--tx);margin-top:6px;letter-spacing:1px}
.boss-stats{display:flex;gap:16px;justify-content:center;margin-bottom:16px;position:relative;z-index:1;flex-wrap:wrap}
.bs{text-align:center}
.bs-num{font-family:var(--display);font-size:32px;font-weight:800;line-height:1}
.bs-label{font-family:var(--mono);font-size:9px;color:var(--tx3);letter-spacing:.8px;text-transform:uppercase;margin-top:2px}
.boss-q{background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:16px;margin-bottom:10px}
.boss-q-label{font-family:var(--mono);font-size:9px;color:var(--red);letter-spacing:.8px;margin-bottom:6px}
.boss-q-text{font-size:13px;font-weight:500;color:var(--tx);line-height:1.65;margin-bottom:12px}
.boss-opts{display:flex;flex-direction:column;gap:6px}
.boss-opt{display:flex;align-items:flex-start;gap:10px;padding:9px 12px;border-radius:6px;border:1px solid var(--b1);cursor:pointer;transition:all .15s;background:var(--s3)}
.boss-opt:hover{border-color:var(--b2)}
.boss-opt.sel{border-color:var(--acc);background:var(--acc-d)}
.boss-opt.correct{border-color:var(--grn);background:var(--grn-d)}
.boss-opt.wrong{border-color:var(--red);background:var(--red-d)}
.boss-opt-ltr{width:22px;height:22px;border-radius:4px;background:var(--s4);display:flex;align-items:center;justify-content:center;font-size:10px;font-family:var(--mono);font-weight:700;color:var(--tx3);flex-shrink:0}
.boss-opt.sel .boss-opt-ltr{background:var(--acc);color:var(--bg)}
.boss-opt.correct .boss-opt-ltr{background:var(--grn);color:var(--bg)}
.boss-opt.wrong .boss-opt-ltr{background:var(--red);color:#fff}
.boss-opt-txt{font-size:12px;color:var(--tx2);line-height:1.5}
.battle-result{text-align:center;padding:32px;background:var(--s2);border-radius:var(--rl);border:1px solid var(--b1)}
.br-outcome{font-family:var(--display);font-size:48px;font-weight:900;text-transform:uppercase;letter-spacing:3px;margin-bottom:8px}
.br-outcome.win{color:var(--grn);text-shadow:0 0 40px rgba(0,255,119,0.4)}
.br-outcome.lose{color:var(--red);text-shadow:0 0 40px rgba(255,34,85,0.3)}
.br-tier{font-family:var(--mono);font-size:14px;letter-spacing:2px;margin-bottom:16px}
/* ── PERSONAL BESTS ── */
#panelPersonal{padding:24px;max-width:900px;margin:0 auto}
.pb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin-bottom:20px}
.pb-card{background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:16px;transition:all .2s;position:relative;overflow:hidden}
.pb-card.new-record{border-color:var(--gold);animation:newRecord 1s ease}
@keyframes newRecord{0%,100%{box-shadow:none}50%{box-shadow:0 0 30px rgba(255,215,0,0.4)}}
.pb-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px}
.pb-card.acc::after{background:var(--acc)}
.pb-card.grn::after{background:var(--grn)}
.pb-card.amb::after{background:var(--amb)}
.pb-card.pur::after{background:var(--pur)}
.pb-card.gold::after{background:var(--gold)}
.pb-icon{font-size:20px;margin-bottom:8px}
.pb-label{font-family:var(--mono);font-size:9px;color:var(--tx3);letter-spacing:.8px;text-transform:uppercase;margin-bottom:4px}
.pb-value{font-family:var(--display);font-size:40px;font-weight:900;line-height:1;letter-spacing:-1px}
.pb-sub{font-family:var(--mono);font-size:9px;color:var(--tx3);margin-top:4px}
.pb-date{font-family:var(--mono);font-size:8px;color:var(--tx4);margin-top:4px}
.pb-record-badge{position:absolute;top:10px;right:10px;font-family:var(--mono);font-size:8px;background:var(--gold-d);border:1px solid var(--gold);color:var(--gold);padding:2px 6px;border-radius:3px;letter-spacing:.5px}
/* ── VOTING ── */
#panelVoting{padding:24px;max-width:900px;margin:0 auto}
.vote-card{background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:18px;margin-bottom:10px;transition:all .2s}
.vote-card:hover{border-color:var(--b2)}
.vote-q{font-size:13px;font-weight:500;color:var(--tx);line-height:1.6;margin-bottom:8px}
.vote-meta{display:flex;align-items:center;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.vote-code{font-family:var(--mono);font-size:9px;color:var(--tx3)}
.vote-topic{font-family:var(--mono);font-size:9px;background:var(--acc-d);border:1px solid var(--acc);color:var(--acc);padding:2px 7px;border-radius:3px}
.vote-opts-preview{font-size:11px;color:var(--tx3);line-height:1.8;margin-bottom:12px;font-family:var(--mono)}
.vote-actions{display:flex;align-items:center;gap:10px}
.vote-btn{padding:7px 16px;border-radius:var(--r);border:1px solid var(--b2);color:var(--tx2);font-family:var(--display);font-size:11px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;cursor:pointer;transition:all .15s;background:transparent}
.vote-btn:hover{border-color:var(--grn);color:var(--grn)}
.vote-btn.voted{background:var(--grn-d);border-color:var(--grn);color:var(--grn)}
.vote-btn.down{color:var(--red)}
.vote-btn.down:hover{border-color:var(--red);color:var(--red)}
.vote-count{font-family:var(--display);font-size:20px;font-weight:800;color:var(--tx)}
.vote-bar-wrap{flex:1;height:4px;background:var(--b1);border-radius:2px;overflow:hidden}
.vote-bar{height:100%;background:var(--grn);border-radius:2px;transition:width .5s}
/* ── MISC ── */
.btn{padding:8px 18px;border-radius:var(--r);border:none;cursor:pointer;font-family:var(--display);font-size:12px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;transition:all .15s;display:inline-flex;align-items:center;gap:6px}
.btn:hover{transform:translateY(-1px)}
.btn:disabled{opacity:.35;cursor:not-allowed;transform:none!important}
.btn-acc{background:var(--acc);color:var(--bg)}
.btn-grn{background:var(--grn);color:var(--bg)}
.btn-gold{background:var(--gold);color:var(--bg)}
.btn-red{background:var(--red-d);border:1px solid var(--red);color:var(--red)}
.btn-ghost{background:transparent;border:1px solid var(--b2);color:var(--tx2)}
.btn-ghost:hover{border-color:var(--b3);color:var(--tx)}
.btn-pur{background:var(--pur-d);border:1px solid var(--pur);color:var(--pur)}
.btn-sm{padding:5px 12px;font-size:10px;border-radius:5px}
.btn-lg{padding:13px 28px;font-size:15px}
.tag{display:inline-flex;align-items:center;padding:2px 8px;border-radius:3px;font-family:var(--mono);font-size:9px;font-weight:600;letter-spacing:.3px;border:1px solid}
.tag.acc{background:var(--acc-d);color:var(--acc);border-color:var(--acc)}
.tag.grn{background:var(--grn-d);color:var(--grn);border-color:var(--grn)}
.tag.amb{background:var(--amb-d);color:var(--amb);border-color:var(--amb)}
.tag.red{background:var(--red-d);color:var(--red);border-color:var(--red)}
.tag.gold{background:var(--gold-d);color:var(--gold);border-color:var(--gold)}
.divider{height:1px;background:var(--b1);margin:8px 0}
.loading{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--tx3);font-family:var(--mono);font-size:11px;padding:24px}
.loading::before{content:'';width:14px;height:14px;border:1.5px solid var(--b2);border-top-color:var(--acc);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{position:fixed;bottom:20px;right:20px;background:var(--s2);border:1px solid var(--b2);border-radius:var(--r);padding:10px 16px;font-family:var(--mono);font-size:11px;color:var(--tx);z-index:2000;opacity:0;transform:translateY(8px);transition:all .25s;max-width:300px}
.toast.show{opacity:1;transform:translateY(0)}
.toast.ok{border-color:var(--grn);color:var(--grn)}
.toast.err{border-color:var(--red);color:var(--red)}
.toast.gold{border-color:var(--gold);color:var(--gold)}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
/* Projector fullscreen */
.projector-mode{position:fixed;inset:0;z-index:999;background:var(--bg);overflow-y:auto;padding:32px;display:none}
.projector-mode.active{display:block}
.proj-exit{position:fixed;top:16px;right:16px;background:var(--red-d);border:1px solid var(--red);color:var(--red);padding:8px 16px;border-radius:var(--r);cursor:pointer;font-family:var(--mono);font-size:10px;z-index:1000;transition:all .15s}
.proj-exit:hover{background:rgba(255,34,85,0.2)}
<link rel="stylesheet" href="platform.css">
</style>
</head>
<body>
<div class="app">
<header>
<div class="logo">A+ 220</div>
<div>
<div class="htitle">Competition <span style="color:var(--acc)">Arena</span></div>
<div class="hsub">Leaderboards · Challenges · Boss Battles · Personal Bests</div>
</div>
<div class="hright">
<span class="hbadge hb-week" id="hWeek">Week 1</span>
<span class="hbadge hb-challenge" id="hChallenge" onclick="switchTab('challenges')">⚡ Challenge Active</span>
<a href="hub.html" class="back">← Hub</a>
</div>
</header>
<nav>
<div class="tab active" onclick="switchTab('live')">🏆 Live Leaderboard</div>
<div class="tab" onclick="switchTab('challenges')">⚡ Weekly Challenges</div>
<div class="tab" onclick="switchTab('boss')">👹 Boss Battles</div>
<div class="tab" onclick="switchTab('personal')">🌟 Personal Bests</div>
<div class="tab" onclick="switchTab('voting')">🗳️ Question Voting</div>
<div class="tab teacher-only" onclick="switchTab('setup')">⚙️ Setup</div>
</nav>
<div class="content">
<!-- ══════════════════════════════════════
LIVE LEADERBOARD
══════════════════════════════════════ -->
<div class="panel active" id="panelLive" style="padding:20px">
<div class="live-header">
<div>
<div class="live-title">Class <span>Leaderboard</span></div>
<div class="live-week" id="weekLabel">Week 1 · Resets Monday</div>
</div>
<div style="display:flex;gap:8px;flex-wrap:wrap">
<button class="btn btn-ghost btn-sm" onclick="refreshLeaderboard()">↻ Refresh</button>
<button class="projector-btn" onclick="toggleProjector()">📺 Projector Mode</button>
</div>
</div>
<!-- Ticker -->
<div class="ticker-wrap">
<div class="ticker-label">Live Feed</div>
<div class="ticker-scroll"><div class="ticker-inner" id="tickerInner"></div></div>
</div>
<!-- Category tabs -->
<div class="cat-tabs">
<div class="cat-tab active" onclick="showCat('points',this)">🏆 PBIS Points</div>
<div class="cat-tab" onclick="showCat('readiness',this)">🎓 Exam Readiness</div>
<div class="cat-tab" onclick="showCat('streak',this)">🔥 Study Streak</div>
<div class="cat-tab" onclick="showCat('questions',this)">💬 Questions Banked</div>
<div class="cat-tab" onclick="showCat('notes',this)">📝 Notes Complete</div>
<div class="cat-tab" onclick="showCat('all',this)">📊 All Categories</div>
</div>
<!-- Single category board -->
<div class="lb-grid" id="lbGrid"></div>
<!-- All categories multi-board -->
<div class="multiboard" id="multiBoard" style="display:none"></div>
</div>
<!-- ══════════════════════════════════════
WEEKLY CHALLENGES
══════════════════════════════════════ -->
<div class="panel" id="panelChallenges">
<!-- Active challenge hero -->
<div class="challenge-hero">
<div class="ch-status">⚡ THIS WEEK'S CHALLENGE · <span id="chDaysLeft">—</span></div>
<div class="ch-title" id="chTitle">No active challenge</div>
<div class="ch-desc" id="chDesc">Your teacher hasn't set a challenge yet this week.</div>
<div class="ch-reward" id="chReward" style="display:none">
<span class="ch-reward-icon">🏆</span>
<span id="chRewardText">+0 PBIS points for everyone who completes it</span>
</div>
<div class="ch-progress">
<div class="ch-progress-label">
<span>Class progress</span>
<span id="chProgressLabel">0 / 0 completed</span>
</div>
<div class="ch-bar"><div class="ch-fill" id="chFill" style="width:0%"></div></div>
</div>
<div class="ch-completers" id="chCompleters"></div>
</div>
<!-- Teacher challenge creator -->
<div class="challenge-creator teacher-only">
<div style="font-family:var(--display);font-size:14px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--amb);margin-bottom:12px">🎯 Set This Week's Challenge (Teacher)</div>
<div class="cc-form">
<input class="cf-inp" id="chNewTitle" placeholder="Challenge title (e.g. Networking Domination)">
<textarea class="cf-inp" id="chNewDesc" placeholder="What students need to do to complete it (e.g. Score 80%+ on 3 quizzes covering networking chapters)" style="resize:none;min-height:60px;line-height:1.6"></textarea>
<div class="cf-row">
<input class="cf-inp" type="number" id="chNewPts" placeholder="PBIS reward points" min="1" max="50" style="flex:0 0 160px">
<input class="cf-inp" type="date" id="chNewDeadline" style="flex:0 0 160px">
<select class="cf-inp" id="chNewType" style="flex:1">
<option value="quiz">Quiz score challenge</option>
<option value="streak">Streak challenge</option>
<option value="notes">Notes completion challenge</option>
<option value="questions">Question submission challenge</option>
<option value="custom">Custom challenge</option>
</select>
</div>
<button class="btn btn-gold" onclick="setChallenge()">⚡ Set Challenge</button>
</div>
</div>
<!-- Past challenges -->
<div style="font-family:var(--display);font-size:16px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx);margin-bottom:12px">Past Challenges</div>
<div class="challenge-list" id="challengeList">
<div style="font-size:11px;color:var(--tx3);font-family:var(--mono)">No past challenges yet.</div>
</div>
</div>
<!-- ══════════════════════════════════════
BOSS BATTLES
══════════════════════════════════════ -->
<div class="panel" id="panelBoss">
<!-- Boss arena -->
<div class="boss-arena">
<div class="boss-name" id="bossName">Chapter Boss</div>
<div class="boss-stats">
<div class="bs"><div class="bs-num" id="bossChapter" style="color:var(--red)">—</div><div class="bs-label">Chapter</div></div>
<div class="bs"><div class="bs-num" id="bossQCount" style="color:var(--acc)">10</div><div class="bs-label">Questions</div></div>
<div class="bs"><div class="bs-num" id="bossTimer" style="color:var(--amb)">5:00</div><div class="bs-label">Time Limit</div></div>
<div class="bs"><div class="bs-num" id="bossClassAvg" style="color:var(--grn)">—</div><div class="bs-label">Class Avg</div></div>
</div>
<div class="boss-hp-wrap">
<div class="boss-hp-bar"><div class="boss-hp-fill" id="bossHpFill" style="width:100%"></div></div>
<div class="boss-hp-label" id="bossHpLabel">Boss HP: 100%</div>
</div>
<div style="font-size:12px;color:var(--tx2);line-height:1.6;max-width:500px;margin:0 auto">
The class fights the boss together. Every correct answer deals damage. Hit the tier threshold to earn class-wide PBIS points!
</div>
<div style="display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap">
<select id="bossChapterSel" class="teacher-only" style="background:var(--s2);border:1px solid var(--b2);border-radius:var(--r);padding:8px 14px;color:var(--tx);font-family:var(--sans);font-size:12px;outline:none">
<option value="Ch.1">Ch.1 Safety & Professionalism</option>
<option value="Ch.2">Ch.2 Intro to Computers & OS</option>
<option value="Ch.7">Ch.7 Power Supplies</option>
<option value="Ch.9">Ch.9 Implementing Mass Storage</option>
<option value="Ch.10">Ch.10 Essential Peripherals</option>
<option value="Ch.11">Ch.11 Installing & Upgrading OS</option>
<option value="Ch.12">Ch.12 Working with OS</option>
<option value="Ch.13">Ch.13 Users, Groups & Permissions</option>
<option value="Ch.14">Ch.14 Maintaining OS</option>
<option value="Ch.15">Ch.15 CLI</option>
<option value="Ch.16">Ch.16 Troubleshooting</option>
<option value="Ch.18">Ch.18 Essentials of Networking</option>
<option value="Ch.19">Ch.19 TCP/IP Basics</option>
<option value="Ch.20">Ch.20 OS Networking</option>
<option value="Ch.21">Ch.21 Wireless Networking</option>
<option value="Ch.22">Ch.22 Internet & SOHO</option>
<option value="Ch.23">Ch.23 Virtualization & Cloud</option>
<option value="Ch.28">Ch.28 Essential Security</option>
<option value="Ch.29">Ch.29 Securing Endpoints</option>
<option value="Ch.30">Ch.30 Operational Procedures</option>
</select>
<button class="btn btn-red btn-lg teacher-only" onclick="startBossBattle()" id="startBossBtn">⚔️ Start Boss Battle</button>
</div>
</div>
<!-- Battle interface -->
<div id="bossInterface" style="display:none"></div>
<!-- Battle history -->
<div style="font-family:var(--display);font-size:16px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx);margin-bottom:12px">Battle History</div>
<div id="bossHistory" style="font-size:11px;color:var(--tx3);font-family:var(--mono)">No battles yet. Challenge a chapter boss to begin!</div>
</div>
<!-- ══════════════════════════════════════
PERSONAL BESTS
══════════════════════════════════════ -->
<div class="panel" id="panelPersonal">
<div style="display:flex;gap:10px;align-items:center;margin-bottom:4px;flex-wrap:wrap">
<div style="font-family:var(--display);font-size:22px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx);flex:1">Your Personal Records</div>
<input type="text" id="pbCodeInput" placeholder="Enter your code (STU-001)"
style="background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:7px 12px;color:var(--acc);font-family:var(--mono);font-size:12px;letter-spacing:1px;outline:none;width:180px;text-transform:uppercase"
oninput="this.value=this.value.toUpperCase()" onchange="loadPersonalBests(this.value)">
<button class="btn btn-acc btn-sm" onclick="loadPersonalBests(document.getElementById('pbCodeInput').value)">Load</button>
</div>
<div style="font-size:12px;color:var(--tx2);margin-bottom:16px">Your best scores ever. A new record triggers a PBIS point award automatically.</div>
<div class="pb-grid" id="pbGrid">
<div style="font-size:11px;color:var(--tx3);font-family:var(--mono);grid-column:1/-1;padding:20px;text-align:center">Enter your student code above to see your personal records.</div>
</div>
<!-- Class personal best wall -->
<div style="font-family:var(--display);font-size:16px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx);margin-bottom:12px;margin-top:8px">🌟 Class Record Wall</div>
<div id="recordWall" style="display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px"></div>
</div>
<!-- ══════════════════════════════════════
QUESTION VOTING
══════════════════════════════════════ -->
<div class="panel" id="panelVoting">
<div style="display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:10px;margin-bottom:4px">
<div>
<div style="font-family:var(--display);font-size:22px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx)">Question Quality Vote</div>
<div style="font-size:12px;color:var(--tx2);margin-top:3px;line-height:1.6">Vote on student-submitted questions. Best questions earn bonus PBIS points for their creator. Top questions get added to permanent cold retrieval rotation.</div>
</div>
<div style="display:flex;gap:6px">
<select id="voteFilter" onchange="renderVoting()" style="background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:7px 10px;color:var(--tx);font-size:11px;outline:none;font-family:var(--mono)">
<option value="all">All questions</option>
<option value="top">Top rated</option>
<option value="new">Newest first</option>
<option value="unvoted">Not yet voted</option>
</select>
</div>
</div>
<div style="display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap">
<input type="text" id="voterCode" placeholder="Your code to vote" style="background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:7px 12px;color:var(--acc);font-family:var(--mono);font-size:11px;letter-spacing:1px;outline:none;width:150px;text-transform:uppercase" oninput="this.value=this.value.toUpperCase()">
<span class="tag acc" id="voteCount">0 questions</span>
<span class="tag gold" id="topQCount">0 top-rated</span>
</div>
<div id="votingList">
<div style="font-size:11px;color:var(--tx3);font-family:var(--mono);padding:20px;text-align:center">No questions in the bank yet. Students submit questions during class to populate this list.</div>
</div>
</div>
<!-- ══════════════════════════════════════
SETUP
══════════════════════════════════════ -->
<div class="panel" id="panelSetup" style="padding:24px;max-width:700px;margin:0 auto">
<div style="font-family:var(--display);font-size:22px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--tx);margin-bottom:16px">⚙️ Arena Setup</div>
<!-- Nickname registration -->
<div style="background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:18px;margin-bottom:14px">
<div style="font-family:var(--display);font-size:14px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--acc);margin-bottom:12px">Register Nickname</div>
<div style="display:flex;gap:8px;margin-bottom:8px;flex-wrap:wrap">
<input type="text" id="regCode" placeholder="STU-001" style="background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:8px 12px;color:var(--acc);font-family:var(--mono);font-size:13px;letter-spacing:1px;outline:none;width:120px;text-transform:uppercase" oninput="this.value=this.value.toUpperCase()">
<input type="text" id="regNick" placeholder="NICKNAME (max 12 chars)" maxlength="12" style="flex:1;background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:8px 12px;color:var(--tx);font-family:var(--display);font-size:14px;font-weight:700;letter-spacing:1px;outline:none;text-transform:uppercase;min-width:140px" oninput="this.value=this.value.toUpperCase().replace(/[^A-Z0-9_]/g,'')">
<button class="btn btn-acc btn-sm" onclick="registerNickname()">Register</button>
</div>
<div style="font-family:var(--mono);font-size:9px;color:var(--tx3);line-height:1.8">Letters, numbers, underscores only · No real names · Max 12 characters</div>
<div id="nickPreview" style="margin-top:10px;font-family:var(--display);font-size:28px;font-weight:800;color:var(--acc);letter-spacing:2px;display:none"></div>
</div>
<!-- Registered nicknames -->
<div style="background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:18px;margin-bottom:14px">
<div style="font-family:var(--display);font-size:14px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--acc);margin-bottom:12px">Registered Nicknames</div>
<div id="nickList" style="display:flex;flex-wrap:wrap;gap:6px"></div>
<button class="btn btn-ghost btn-sm" style="margin-top:10px" onclick="clearNicknames()">Clear All</button>
</div>
<!-- Week control -->
<div style="background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:18px;margin-bottom:14px">
<div style="font-family:var(--display);font-size:14px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--acc);margin-bottom:12px">Week Controls</div>
<div style="display:flex;gap:8px;align-items:center;flex-wrap:wrap">
<span style="font-size:12px;color:var(--tx2)">Current week:</span>
<input type="number" id="weekNum" min="1" max="20" value="1" style="width:60px;background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:6px;color:var(--tx);font-family:var(--mono);font-size:13px;text-align:center;outline:none">
<button class="btn btn-acc btn-sm" onclick="setWeek()">Set Week</button>
<button class="btn btn-ghost btn-sm" onclick="resetWeeklyScores()">Reset Weekly Scores</button>
</div>
<div style="font-family:var(--mono);font-size:9px;color:var(--tx3);margin-top:8px">Weekly leaderboard resets Monday. Cumulative PBIS points never reset.</div>
</div>
<!-- Import from platform -->
<div style="background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:18px">
<div style="font-family:var(--display);font-size:14px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--acc);margin-bottom:12px">Add Test Data (Demo)</div>
<div style="font-size:12px;color:var(--tx2);margin-bottom:10px;line-height:1.7">Populate the leaderboard with demo data to preview how it looks. Remove before using in class.</div>
<div style="display:flex;gap:8px;flex-wrap:wrap">
<button class="btn btn-ghost btn-sm" onclick="loadDemoData()">Load Demo Data</button>
<button class="btn btn-red btn-sm" onclick="clearAllData()">Clear All Data</button>
</div>
</div>
</div>
</div><!-- /content -->
</div><!-- /app -->
<!-- Projector Mode Overlay -->
<div class="projector-mode" id="projectorMode">
<button class="proj-exit" onclick="toggleProjector()">✕ Exit Projector</button>
<div style="max-width:1200px;margin:0 auto">
<div style="display:flex;align-items:center;justify-content:space-between;margin-bottom:24px">
<div>
<div style="font-family:var(--display);font-size:clamp(32px,5vw,64px);font-weight:900;letter-spacing:3px;text-transform:uppercase;color:var(--tx)">Class <span style="color:var(--acc)">Leaderboard</span></div>
<div style="font-family:var(--mono);font-size:11px;color:var(--tx3);letter-spacing:1px;margin-top:4px" id="projWeekLabel">Week 1</div>
</div>
<div style="font-family:var(--display);font-size:20px;font-weight:700;color:var(--acc);letter-spacing:1px">CompTIA A+ 220-1202</div>
</div>
<div class="multiboard" id="projMultiBoard" style="margin-bottom:24px"></div>
<div style="background:var(--s1);border:1px solid var(--b1);border-radius:var(--rl);padding:16px 20px;display:flex;align-items:center;gap:12px">
<div style="font-family:var(--mono);font-size:8px;letter-spacing:1.5px;color:var(--acc)">LIVE FEED</div>
<div style="flex:1;overflow:hidden;height:18px;position:relative">
<div class="ticker-inner" id="projTicker" style="font-family:var(--mono);font-size:11px;color:var(--tx2)"></div>
</div>
</div>
</div>
</div>
<div class="toast" id="toast"></div>
<script src="platform.js"></script>
<script>
// ── LOGIN TRACKING ──────────────────────────────────────
(function trackLogin() {
try {
var code = localStorage.getItem('PLATFORM_CODE');
if (!code) return;
code = JSON.parse(code);
if (!code || code === 'TEACHER') return;
var today = new Date().toDateString();
var tool = document.title.replace('CompTIA A+ · ','').trim();
var key = 'login_log';
var log = [];
try { log = JSON.parse(localStorage.getItem(key)) || []; } catch(e) {}
// Only log once per tool per day
var alreadyLogged = log.some(function(e) {
return e.code === code && e.date === today && e.tool === tool;
});
if (!alreadyLogged) {
log.unshift({
code: code,
date: today,
time: new Date().toLocaleTimeString(),
tool: tool,
ts: Date.now()
});
// Keep last 1000 entries
localStorage.setItem(key, JSON.stringify(log.slice(0, 1000)));
// Sync to Google Sheets if connected
var syncUrl = localStorage.getItem('PLATFORM_SYNC_URL');
if (syncUrl) {
try { syncUrl = JSON.parse(syncUrl); } catch(e) {}
if (syncUrl && syncUrl.includes('script.google.com')) {
fetch(syncUrl + '?action=save_login&code=' + encodeURIComponent(code) +
'&tool=' + encodeURIComponent(tool) +
'&date=' + encodeURIComponent(today) +
'&time=' + encodeURIComponent(new Date().toLocaleTimeString()),
{ mode: 'cors' }
).catch(function(){});
}
}
}
} catch(e) {}
})();
// Fallback storage helpers (in case platform.js loads async)
if(typeof pls==='undefined'){window.pls=function(k,d){try{var v=localStorage.getItem(k);return v?JSON.parse(v):d;}catch(e){return d;}};window.psl=function(k,v){localStorage.setItem(k,JSON.stringify(v));};}
// ══════════════════════════════════════════════════
// STATE & STORAGE
// ══════════════════════════════════════════════════
function ls(k,d){try{const v=localStorage.getItem(k);return v?JSON.parse(v):d}catch{return d}}
function sl(k,v){localStorage.setItem(k,JSON.stringify(v))}
const ST = {
nicknames: ls('arena_nicks',{}), // {code: nickname}
weeklyScores: ls('arena_weekly',{}), // {code: {points,readiness,streak,questions,notes}}
allTimeScores: ls('arena_alltime',{}), // {code: {points}}
challenges: ls('arena_challenges',[]),
activeChallenge: ls('arena_active_ch',null),
bossHistory: ls('arena_boss',[]),
personalBests: ls('arena_pb',{}), // {code: {bestQuiz, bestExam, bestStreak, ...}}
votes: ls('arena_votes',{}), // {questionId: {up:[], down:[]}}
tickerEvents: ls('arena_ticker',[]),
currentWeek: ls('arena_week',1),
currentCat: 'points',
};
const CATS = [
{id:'points', label:'PBIS Points', icon:'🏆', unit:'pts', color:'var(--gold)'},
{id:'readiness', label:'Exam Readiness', icon:'🎓', unit:'%', color:'var(--acc)'},
{id:'streak', label:'Study Streak', icon:'🔥', unit:'days', color:'var(--amb)'},
{id:'questions', label:'Questions Banked', icon:'💬', unit:'Qs', color:'var(--grn)'},
{id:'notes', label:'Notes Complete', icon:'📝', unit:'chs', color:'var(--pur)'},
];
// ── INIT ──
function init(){
if(typeof Platform!=="undefined") Platform.guardPage();
updateWeekLabel();
renderLeaderboard('points');
renderTicker();
renderChallenges();
renderBossHistory();
renderNickList();
renderVoting();
renderRecordWall();
document.getElementById('weekNum').value=ST.currentWeek;
// Load PBIS data from platform
syncFromPlatform();
}
function switchTab(id){
document.querySelectorAll('.tab').forEach(t=>t.classList.remove('active'));
document.querySelectorAll('.panel').forEach(p=>p.classList.remove('active'));
const tabs=['live','challenges','boss','personal','voting','setup'];
const idx=tabs.indexOf(id);
if(idx>=0) document.querySelectorAll('.tab')[idx]?.classList.add('active');
document.getElementById('panel'+id.charAt(0).toUpperCase()+id.slice(1))?.classList.add('active');
}
// ── SYNC FROM PLATFORM ──
function syncFromPlatform(){
// Pull PBIS data from platform localStorage
const pbisStudents=ls('pbis_students',{});
const pbisLog=ls('pbis_log',[]);
const answers=ls('st_ans',{});
const streak=ls('scc_streak',{current:0});
const bank=ls('st_bank',[]);
const notes=ls('cn_notes',{});
Object.entries(pbisStudents).forEach(([code,pts])=>{
if(!ST.weeklyScores[code]) ST.weeklyScores[code]={points:0,readiness:0,streak:0,questions:0,notes:0};
ST.weeklyScores[code].points=pts;
ST.allTimeScores[code]={points:pts};
});
// Count questions per student
bank.forEach(q=>{
if(q.code){
if(!ST.weeklyScores[q.code]) ST.weeklyScores[q.code]={points:0,readiness:0,streak:0,questions:0,notes:0};
ST.weeklyScores[q.code].questions=(ST.weeklyScores[q.code].questions||0)+1;
}
});
sl('arena_weekly',ST.weeklyScores);
sl('arena_alltime',ST.allTimeScores);
}
// ── NICKNAME ──
function displayName(code){
return ST.nicknames[code]||code;
}
function registerNickname(){
const code=document.getElementById('regCode').value.trim().toUpperCase();
const nick=document.getElementById('regNick').value.trim().toUpperCase().replace(/[^A-Z0-9_]/g,'').substring(0,12);
if(!code||!nick){toast('Enter both code and nickname','err');return;}
if(Object.values(ST.nicknames).includes(nick)){toast('That nickname is taken — choose another','err');return;}
ST.nicknames[code]=nick;
sl('arena_nicks',ST.nicknames);
renderNickList();
document.getElementById('nickPreview').textContent=nick;
document.getElementById('nickPreview').style.display='block';
toast(`${code} → ${nick} registered!`,'ok');
renderLeaderboard(ST.currentCat);
}
function renderNickList(){
document.getElementById('nickList').innerHTML=Object.entries(ST.nicknames).map(([code,nick])=>`
<div style="background:var(--s2);border:1px solid var(--b1);border-radius:var(--r);padding:5px 10px;display:flex;align-items:center;gap:8px">
<span style="font-family:var(--mono);font-size:9px;color:var(--tx3)">${code}</span>
<span style="font-family:var(--display);font-size:14px;font-weight:700;color:var(--acc)">${nick}</span>
<span onclick="deleteNick('${code}')" style="font-size:10px;color:var(--tx3);cursor:pointer;margin-left:4px">✕</span>
</div>`).join('')||'<div style="font-size:11px;color:var(--tx3);font-family:var(--mono)">No nicknames registered yet.</div>';
}
function deleteNick(code){delete ST.nicknames[code];sl('arena_nicks',ST.nicknames);renderNickList();renderLeaderboard(ST.currentCat);}
function clearNicknames(){if(confirm('Clear all nicknames?')){ST.nicknames={};sl('arena_nicks',{});renderNickList();renderLeaderboard(ST.currentCat);}}
// ── LEADERBOARD ──
function showCat(cat, el){
ST.currentCat=cat;
document.querySelectorAll('.cat-tab').forEach(t=>t.classList.remove('active'));
el?.classList.add('active');
const grid=document.getElementById('lbGrid');
const multi=document.getElementById('multiBoard');
if(cat==='all'){grid.style.display='none';multi.style.display='grid';renderMultiBoard('multiBoard');}
else{grid.style.display='flex';multi.style.display='none';renderLeaderboard(cat);}
}
function renderLeaderboard(cat){
const scores=ST.weeklyScores;
const catInfo=CATS.find(c=>c.id===cat)||CATS[0];
const sorted=Object.entries(scores)
.map(([code,s])=>({code,name:displayName(code),score:s[cat]||0,raw:s}))
.sort((a,b)=>b.score-a.score)
.filter(e=>e.score>0);
const maxScore=sorted[0]?.score||1;
const myCode=ls('scc_code',null);
document.getElementById('lbGrid').innerHTML=sorted.length?sorted.map((e,i)=>{
const rank=i+1;
const rankClass=rank===1?'rank-1':rank===2?'rank-2':rank===3?'rank-3':'';
const isMe=e.code===myCode;
const barPct=Math.round(e.score/maxScore*100);
const rankIcon=rank===1?'👑':rank===2?'🥈':rank===3?'🥉':'';
return `<div class="lb-row ${rankClass} ${isMe?'is-me':''}" style="animation:fadeUp .3s ease ${i*.04}s both">
<div class="lb-rank">${rank<=3?'':`#${rank}`}</div>
<div class="lb-rank-icon">${rankIcon||''}</div>
<div>
<div class="lb-name">${e.name}${isMe?` <span style="font-family:var(--mono);font-size:9px;color:var(--acc)">(you)</span>`:''}</div>
${e.code!==e.name?`<div style="font-family:var(--mono);font-size:9px;color:var(--tx3)">${e.code}</div>`:''}
</div>
<div style="flex:1"></div>
<div class="lb-bar-wrap"><div class="lb-bar" style="width:${barPct}%;background:${catInfo.color}"></div></div>
<div class="lb-score" style="color:${rank<=3?'':'var(--tx2)'}">${e.score}<span style="font-size:14px;font-weight:400"> ${catInfo.unit}</span></div>
</div>`;
}).join(''):`<div style="text-align:center;padding:48px 20px;color:var(--tx3);font-family:var(--mono)">No scores yet for this category.<br>Complete activities in the classroom platform to appear here.</div>`;
}
function renderMultiBoard(elId){
document.getElementById(elId).innerHTML=CATS.map(cat=>{
const sorted=Object.entries(ST.weeklyScores)
.map(([code,s])=>({code,name:displayName(code),score:s[cat.id]||0}))
.sort((a,b)=>b.score-a.score)
.filter(e=>e.score>0)
.slice(0,5);
return `<div class="mb-col">
<div class="mb-header">
<div class="mb-header-icon">${cat.icon}</div>
<div class="mb-header-title">${cat.label}</div>
</div>
<div class="mb-rows">
${sorted.map((e,i)=>`
<div class="mb-row ${i===0?'r1':i===1?'r2':i===2?'r3':''}">
<div class="mb-row-rank">${i===0?'👑':i===1?'🥈':i===2?'🥉':`#${i+1}`}</div>
<div class="mb-row-name">${e.name}</div>
<div class="mb-row-score">${e.score}${cat.unit}</div>
</div>`).join('')||`<div style="padding:8px;font-size:10px;color:var(--tx3);font-family:var(--mono)">No data yet</div>`}
</div>
</div>`;
}).join('');
}
function refreshLeaderboard(){syncFromPlatform();renderLeaderboard(ST.currentCat);toast('Refreshed from platform data','ok');}
// ── TICKER ──
function renderTicker(){
const events=ST.tickerEvents.slice(0,20);
if(!events.length){
addTickerEvent('Welcome to the Competition Arena! Earn points by completing activities.','🏟️');
return;
}
const html=events.map(e=>`<div class="ticker-item">${e.icon} <span>${e.name}</span> ${e.msg} · ${e.time}</div>`).join('');
['tickerInner','projTicker'].forEach(id=>{
const el=document.getElementById(id);
if(el)el.innerHTML=html+html; // duplicate for seamless loop
});
}
function addTickerEvent(msg, icon='⭐', name=''){
const event={msg,icon,name:name||'System',time:new Date().toLocaleTimeString()};
ST.tickerEvents.unshift(event);
ST.tickerEvents=ST.tickerEvents.slice(0,50);
sl('arena_ticker',ST.tickerEvents);
renderTicker();
}
// ── CHALLENGES ──
function setChallenge(){
const title=document.getElementById('chNewTitle').value.trim();
const desc=document.getElementById('chNewDesc').value.trim();
const pts=parseInt(document.getElementById('chNewPts').value)||5;
const deadline=document.getElementById('chNewDeadline').value;
const type=document.getElementById('chNewType').value;
if(!title||!desc){toast('Enter title and description','err');return;}
const ch={id:Date.now(),title,desc,pts,deadline,type,created:new Date().toLocaleDateString(),completers:[],active:true};
ST.challenges.unshift(ch);
ST.activeChallenge=ch;
sl('arena_challenges',ST.challenges);
sl('arena_active_ch',ch);
['chNewTitle','chNewDesc','chNewPts','chNewDeadline'].forEach(id=>{const el=document.getElementById(id);if(el)el.value='';});
renderChallenges();
addTickerEvent(`New challenge: "${title}" — ${pts} PBIS pts for completing!`,'⚡','Teacher');
toast('Challenge set!','ok');
}
function renderChallenges(){
const ch=ST.activeChallenge;
if(ch){
document.getElementById('chTitle').textContent=ch.title;
document.getElementById('chDesc').textContent=ch.desc;
document.getElementById('chReward').style.display='flex';
document.getElementById('chRewardText').textContent=`+${ch.pts} PBIS points for everyone who completes it`;
const completers=ch.completers||[];
const studentCount=Object.keys(ST.weeklyScores).length||1;
const pct=Math.round(completers.length/Math.max(studentCount,1)*100);
document.getElementById('chFill').style.width=pct+'%';
document.getElementById('chProgressLabel').textContent=`${completers.length} / ${studentCount} completed`;
document.getElementById('chCompleters').innerHTML=completers.map(c=>`<div class="ch-completer">✓ ${displayName(c)}</div>`).join('');
const daysLeft=ch.deadline?Math.ceil((new Date(ch.deadline)-new Date())/86400000):null;
document.getElementById('chDaysLeft').textContent=daysLeft?`${daysLeft} days left`:'No deadline';
}
const past=ST.challenges.filter(c=>!c.active||c!==ST.activeChallenge);
document.getElementById('challengeList').innerHTML=past.length?past.map(ch=>`
<div class="challenge-card">
<div class="cc-icon">${ch.type==='quiz'?'🎯':ch.type==='streak'?'🔥':ch.type==='notes'?'📝':ch.type==='questions'?'💬':'⚡'}</div>
<div class="cc-info">
<div class="cc-title">${ch.title}</div>
<div class="cc-desc">${ch.desc}</div>
<div class="cc-meta">
<span class="cc-pts">+${ch.pts} pts</span>
<span class="cc-deadline">${ch.deadline||'No deadline'}</span>
<span class="cc-status complete">${ch.completers?.length||0} completed</span>
</div>
</div>
<div class="cc-action">
<button class="btn btn-ghost btn-sm teacher-only" onclick="markComplete(${ch.id})">Mark Complete</button>
</div>
</div>`).join(''):
'<div style="font-size:11px;color:var(--tx3);font-family:var(--mono)">No past challenges yet.</div>';
}
function markComplete(id){
const code=prompt('Student code who completed:');
if(!code)return;
const ch=ST.challenges.find(c=>c.id===id)||ST.activeChallenge;
if(!ch)return;
if(!ch.completers) ch.completers=[];
if(!ch.completers.includes(code.toUpperCase())){
ch.completers.push(code.toUpperCase());
sl('arena_challenges',ST.challenges);
sl('arena_active_ch',ST.activeChallenge);
// Award PBIS points
const pbis=ls('pbis_students',{});
pbis[code.toUpperCase()]=(pbis[code.toUpperCase()]||0)+ch.pts;
sl('pbis_students',pbis);
addTickerEvent(`completed the challenge "${ch.title}"! +${ch.pts} pts`,'⚡',displayName(code.toUpperCase()));
renderChallenges();
syncFromPlatform();
renderLeaderboard(ST.currentCat);
toast(`${code} marked complete · +${ch.pts} PBIS points awarded!`,'gold');
}
}
// ── BOSS BATTLES ──
let bossState={qs:null,answers:{},timer:null,secs:300,submitted:false,idx:0};
async function startBossBattle(){
const chapter=document.getElementById('bossChapterSel').value;
const btn=document.getElementById('startBossBtn');
btn.disabled=true; btn.textContent='Summoning boss…';
document.getElementById('bossInterface').style.display='block';
document.getElementById('bossInterface').innerHTML='<div class="loading">Generating 10 boss battle questions…</div>';
try{
const r=await fetch('https://api.anthropic.com/v1/messages',{
method:'POST',headers:{'Content-Type':'application/json'},
body:JSON.stringify({
model:'claude-sonnet-4-20250514',max_tokens:2500,
system:'You are a CompTIA A+ 220-1202 exam writer. Return only valid JSON, no markdown. Each call must produce DIFFERENT questions — vary topics, difficulty, scenario types, and wording every time. Return only valid JSON array.',
messages:[{role:'user',content:`[Seed: ${Date.now()}] Generate 10 challenging CompTIA A+ 220-1202 questions for the chapter: "${chapter}".
These are for a class competition — make them challenging but fair. Use qualifier words. Plausible distractors.
Return JSON: [{"q":"...","opts":{"A":"...","B":"...","C":"...","D":"..."},"answer":"A","rationale":"..."}]`}]
})
});
const d=await r.json();
const text=d.content?.map(c=>c.text||'').join('')||'';
bossState.qs=JSON.parse(text.replace(/```json\n?|\n?```/g,'').trim());
bossState.answers={};bossState.submitted=false;bossState.idx=0;bossState.secs=300;
document.getElementById('bossChapter').textContent=chapter;
document.getElementById('bossName').textContent=chapter.replace('Ch.','Chapter ')+' BOSS';
renderBossInterface();
startBossTimer();
addTickerEvent(`started a Boss Battle against ${chapter}!`,'👹','Class');
}catch(e){
document.getElementById('bossInterface').innerHTML='<div style="color:var(--red);font-family:var(--mono);font-size:11px;padding:16px">Failed to summon boss. Check connection.</div>';
toast('Boss generation failed','err');
}
btn.disabled=false; btn.textContent='⚔️ Start Boss Battle';
}
function renderBossInterface(){
const qs=bossState.qs;if(!qs)return;
const answered=Object.keys(bossState.answers).length;
const correct=Object.entries(bossState.answers).filter(([i,a])=>a===qs[+i]?.answer).length;
const hpPct=bossState.submitted?Math.max(0,100-Math.round(correct/qs.length*100)):100;
document.getElementById('bossHpFill').style.width=hpPct+'%';
document.getElementById('bossHpFill').style.background=hpPct<30?'var(--red)':hpPct<60?'var(--amb)':'linear-gradient(90deg,var(--grn),var(--acc))';
document.getElementById('bossHpLabel').textContent=`Boss HP: ${hpPct}%`;
if(bossState.submitted){
renderBossResult(correct,qs.length);return;
}
const q=qs[bossState.idx];
const sel=bossState.answers[bossState.idx];
document.getElementById('bossInterface').innerHTML=`
<div style="display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap">
${qs.map((_,i)=>`<div style="width:24px;height:24px;border-radius:4px;background:${i===bossState.idx?'var(--red)':bossState.answers[i]?'var(--acc-d)':'var(--s3)'};border:1px solid ${i===bossState.idx?'var(--red)':bossState.answers[i]?'var(--acc)':'var(--b1)'};display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:9px;cursor:pointer;color:var(--tx3)" onclick="bossGoTo(${i})">${i+1}</div>`).join('')}
</div>
<div class="boss-q">
<div class="boss-q-label">Boss Question ${bossState.idx+1} of ${qs.length}</div>