@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{color-scheme:dark;--bg:#101514;--panel:#19211f;--border:#303b35;--ink:#edf2e9;--muted:#a5b0a8;--lime:#c7ef88;--amber:#f3c476}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px 'DM Sans',system-ui,sans-serif}h1,h2,h3,.brand{font-family:'Space Grotesk',system-ui,sans-serif}button,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:4px}header{height:82px;padding:0 4.5%;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.brand{color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:3px}.mark{display:grid;place-items:center;background:var(--lime);color:#17251b;font-size:32px;width:36px;height:36px;border-radius:7px}.subbrand{color:var(--muted);font-size:10px;letter-spacing:2px;border-left:1px solid var(--border);padding-left:14px;margin-left:4px}.topright{font-size:10px;letter-spacing:1.3px;display:flex;gap:10px;align-items:center}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--lime)}main{max-width:1330px;padding:0 32px;margin:auto}.hero{padding:64px 0 38px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.8px;color:var(--lime)}h1{font-size:54px;letter-spacing:-2.5px;line-height:1.09;margin:22px 0}h1 span{color:var(--lime)}p{color:var(--muted);line-height:1.6}.hero p{font-size:17px;line-height:1.8}.meta{display:flex;gap:26px;color:#c5cec5;font-size:13px;margin-top:25px}.path{display:flex;gap:25px;font-family:monospace;font-size:11px;letter-spacing:1px;margin-top:34px;color:var(--muted)}.path i{color:#536653}.entry-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:24px;padding-bottom:35px}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:28px}h2{font-size:25px;margin:12px 0}h3{font-size:21px}label{display:block;font-size:12px;font-weight:600;margin-top:22px}input{width:100%;display:block;color:var(--ink);background:#111916;border:1px solid #3c4941;border-radius:6px;padding:13px 14px;margin-top:9px;min-width:0}input::placeholder{color:#74847a}.tabs{display:flex;margin-top:22px;border-bottom:1px solid var(--border)}.tabs button{flex:1;border:0;background:transparent;color:var(--muted);padding:12px;font-size:12px}.tabs button.selected{color:var(--lime);border-bottom:2px solid var(--lime)}button{border-radius:6px;border:1px solid transparent;padding:11px 16px;font-weight:600;font-size:12px}.primary{background:var(--lime);color:#182317}.secondary{background:#27332b;border-color:#475841;color:var(--ink)}.quiet{background:transparent;color:var(--lime);padding:7px 10px}.join .primary{width:100%;display:flex;justify-content:space-between;margin-top:24px;font-size:14px}.briefing ul{list-style:none;padding:0;margin:24px 0}.briefing li{position:relative;padding:0 0 20px 33px}.briefing li:before{content:'↗';position:absolute;left:0;color:var(--lime)}.briefing li b,.briefing li span{display:block}.briefing li span{font-size:13px;color:var(--muted);line-height:1.6;margin-top:5px}.teacher-entry{border-top:1px solid var(--border);padding-top:20px;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:13px}footer{border-top:1px solid var(--border);padding:22px 0 32px;font-size:10px;letter-spacing:1px;color:var(--muted);display:flex;justify-content:space-between}footer span{letter-spacing:0}.mission-heading{display:flex;align-items:center;justify-content:space-between;padding:32px 0 23px}.mission-heading h1{font-size:33px;margin:10px 0;letter-spacing:-1px}.mission-heading h1 span{display:block;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:400;letter-spacing:0;margin-top:10px}.clock-wrap{display:flex;gap:7px;align-items:flex-end;flex-direction:column}.clock-wrap>span{font-size:9px;letter-spacing:1.3px}.clock-wrap b{font-family:monospace;font-size:30px;color:var(--lime)}.connection{color:var(--muted)}.lab-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;padding-bottom:45px}.investigation{min-width:0}.investigation .card{margin-bottom:20px}.section-heading{display:flex;justify-content:space-between;align-items:center}.section-heading>span{font-family:monospace;font-size:12px;color:var(--muted)}.steps{display:flex;gap:6px;margin-top:18px}.steps div{height:4px;flex:1;background:#3b493c;border-radius:3px}.steps div.done{background:var(--lime)}.steps div.active{background:#759a53}.mission-card h2{margin-top:22px}.mission-card p{font-size:14px}.mission-card form{display:flex;gap:10px}.mission-card form input{margin:0}.mission-card form button{white-space:nowrap}.hint-row{display:flex;align-items:center;justify-content:space-between;margin-top:12px}.hint-row span{font-size:10px;color:var(--muted)}.hint-text{border-left:2px solid var(--lime);padding:8px 12px;background:#202f24}.portal{padding:0}.portal-top{border-bottom:1px solid var(--border);padding:12px 20px;display:flex;justify-content:space-between;font-size:9px;letter-spacing:1px;color:var(--muted)}.portal-body{padding:24px;display:grid;grid-template-columns:1fr 185px;gap:24px}.portal-body h3{margin:12px 0}.portal-body p{font-size:12px}.portal-body small{font-size:11px;color:var(--muted);line-height:1.6}.relay-status{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;border:1px dashed #63734c;border-radius:8px;background:#202a20;padding:14px;font-size:10px}.pulse{font-size:28px;color:var(--amber)}.amber{color:var(--amber)}.relay-status small{font-size:9px}.terminal{border:1px solid #39413a;border-radius:10px;background:#090f0d;overflow:hidden}.terminal-top{padding:10px 16px;border-bottom:1px solid #29332c;display:flex;justify-content:space-between;align-items:center;font-family:monospace;font-size:11px;color:var(--muted)}.terminal-top i{display:inline-block;width:7px;height:7px;background:#5b6b5a;border-radius:50%;margin-right:4px}.terminal-top i:first-child{background:#af7160}.terminal-top i:nth-child(2){background:#c5a164}.terminal-top i:nth-child(3){background:#85a56a}#terminal-output{height:275px;overflow:auto;padding:17px;font:12px/1.7 ui-monospace,Menlo,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.terminal-line{margin-bottom:9px}.terminal-line.input{color:var(--lime)}#terminal-form{display:flex;align-items:center;gap:10px;padding:0 16px 12px;font:12px monospace}#terminal-form span{color:var(--lime);white-space:nowrap}#command{font:12px monospace;background:transparent;border:0;margin:0;padding:10px 0}#terminal-form button{background:#1f3023;color:var(--lime);padding:7px 12px}.terminal-note{font-size:8px;letter-spacing:1px;color:#7e9283;padding:10px 16px;border-top:1px solid #243028}.scoreboard{padding:21px}.scoreboard h2{font-size:18px;margin:0}.scoreboard p{font-size:11px}.score-head{display:flex;justify-content:space-between;font-size:8px;letter-spacing:1px;color:var(--muted);margin-top:24px;padding-bottom:10px;border-bottom:1px solid var(--border)}.score-row{display:flex;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:1px solid #2b372e;gap:10px}.score-row strong{font-size:12px;overflow-wrap:anywhere}.score-row b{color:var(--lime);font:15px monospace;white-space:nowrap}.score-row small{font-size:9px;color:var(--muted);margin-right:8px}.score-note{font-size:10px;line-height:1.7;color:var(--muted);margin-top:20px}.toolkit{padding:23px;margin-top:20px}.toolkit dt{color:#dbe4d6;font-family:monospace;font-size:12px;margin-top:19px}.toolkit dd{margin:6px 0 0;color:var(--muted);font-size:11px;line-height:1.7}.toolkit p{font-size:11px;border-top:1px solid var(--border);padding-top:18px}.control-row{display:flex;align-items:center;justify-content:space-between;gap:20px}.control-row p{font-size:12px;margin-bottom:0}.control-buttons{display:flex;gap:8px;flex-wrap:wrap}.session-note{font-size:11px}#teacher-controls{margin-bottom:20px}#teacher-guide{white-space:pre-wrap;line-height:1.8;font-size:12px;color:#ccdbc4;border-top:1px solid var(--border);padding-top:15px}.share-bar{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:11px;margin-bottom:18px}.debrief-item{padding:20px 0;border-top:1px solid var(--border)}.debrief-item h3{font-size:16px}.choices{display:flex;gap:8px;flex-wrap:wrap}.choices button{background:#27332b;border:1px solid #4a5e40;color:var(--ink);text-align:left}.debrief-item p{font-size:13px}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:90%;background:#d5eeb9;color:#152014;border-radius:8px;padding:14px 24px;box-shadow:0 5px 40px #0008;font-size:13px;z-index:10}[hidden]{display:none!important}@media(max-width:850px){.entry-grid,.lab-grid{grid-template-columns:1fr}h1{font-size:43px}.topright{font-size:0}.topright button{font-size:11px}.lab-grid aside{display:grid;grid-template-columns:1fr 1fr;gap:15px}.toolkit{margin-top:0}.control-row{align-items:flex-start;flex-direction:column}main{padding:0 20px}.hero{padding-top:40px}}@media(max-width:540px){header{padding:0 20px}.subbrand{display:none}.hero h1{font-size:38px}.hero p br{display:none}.meta{gap:14px;font-size:11px}.path{gap:9px;font-size:8px}.card{padding:20px}.portal{padding:0}.portal-body{grid-template-columns:1fr}.relay-status{min-height:140px}.mission-card form{flex-direction:column}.hint-row span{display:none}.lab-grid aside{grid-template-columns:1fr}footer{gap:15px;flex-direction:column}.teacher-entry{gap:12px}.mission-heading h1{font-size:26px}.share-bar{gap:10px}.portal-top{font-size:8px}}
/* Teacher sign-in status, classroom list, and room-code share box */
#teacher-status a{color:var(--lime)}
.teacher-warning{margin:.5rem 0 0;color:var(--amber);font-size:13px}
.my-rooms{margin-top:1rem;display:grid;gap:.5rem}
.room-row{display:flex;align-items:center;gap:.75rem;width:100%;text-align:left;background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--ink);padding:.6rem .8rem;cursor:pointer;font:inherit}
.room-row:hover{border-color:var(--lime)}
.room-row strong{font-family:ui-monospace,monospace;letter-spacing:.08em;color:var(--lime)}
.room-row span{flex:1;color:var(--muted);font-size:13px}
.share-code{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 2rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border)}
.share-code b{display:block;font:700 32px/1.1 ui-monospace,monospace;letter-spacing:.12em;color:var(--lime)}
.share-link{flex:1;min-width:0}
.share-link code{display:block;overflow-wrap:anywhere;color:var(--muted);font-size:13px}
.hint-count{display:block;font-style:normal;font-weight:400;font-size:12px;color:var(--muted)}
.wait-banner{margin:14px 0 0;padding:10px 12px;border:1px solid var(--amber);border-radius:8px;color:var(--amber);font-size:13px;background:rgba(243,196,118,.07)}
input:disabled{cursor:not-allowed}
.worth{color:var(--lime);font-family:ui-monospace,monospace;font-size:12px;letter-spacing:.06em;margin-right:8px}
.hint-list{margin:12px 0 0;padding:10px 12px 10px 30px;border:1px solid var(--border);border-radius:8px;font-size:13px;color:var(--ink);background:rgba(199,239,136,.05)}
.hint-list li+li{margin-top:6px}
.hint-list li::marker{color:var(--lime)}
#hint:disabled{opacity:.5;cursor:not-allowed}
/* Teacher tools: time buttons, per-team actions, stalled teams; 2-minute banner for everyone */
.time-buttons{display:inline-flex;gap:4px}
.team-tools{display:flex;gap:2px;margin-top:4px}
.team-tools button{padding:2px 7px;font-size:12px;min-width:0}
.score-row.stalled{border-left:3px solid var(--amber);padding-left:8px}
.score-row.stalled .hint-count{color:var(--amber)}
.time-banner{position:sticky;top:0;z-index:5;margin:0 0 12px;padding:10px 14px;border-radius:8px;background:var(--amber);color:#1b1407;font-weight:700;text-align:center}
/* Let the join link take its own line on narrow screens instead of shrinking to one character wide. */
.share-link{flex:1 1 240px}
.share-code .control-buttons{flex-wrap:wrap}