body{font-family:'Nunito',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}


  :root {
  --bg:#07080a;--bg2:#0c0e10;--bg3:#111417;
  --border:rgba(255,255,255,.07);
  --text:#e8eaf0;--muted:rgba(232,234,240,.4);
  --ue:#e05a1e;--ue-lt:#f08050;--ue-dk:#a03808;
  --bp:#4a90d9;--bp-lt:#7ab8f5;
  --green:#4ade80;--red:#f87171;--gold:#f5c842;--teal:#2dd4bf;
}

.btn-back{font-size:.8rem;font-weight:700;color:var(--muted);padding:6px 14px;border-radius:8px;border:1px solid var(--border);transition:color .15s,border-color .15s}
.btn-back:hover{color:var(--text);border-color:rgba(255,255,255,.2)}
@media(max-width:860px){.btn-back{display:none}.nav-toggle{display:block!important}}

.hero{padding:44px 24px 36px;border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(224,90,30,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(224,90,30,.04) 1px,transparent 1px);background-size:40px 40px;mask-image:radial-gradient(ellipse 80% 100% at 50% 0%,black,transparent)}
.hero-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;position:relative;z-index:1}
@media(max-width:700px){.hero-inner{grid-template-columns:1fr}}
.hero-tag{font-family:'JetBrains Mono',monospace;font-size:.63rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--ue-lt);margin-bottom:10px}
.hero-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(2.2rem,6vw,3.8rem);line-height:.95;letter-spacing:.03em;color:white;margin-bottom:12px}
.hero-title .hl{color:var(--ue)}
.hero-sub{font-size:.92rem;color:var(--muted);line-height:1.7;max-width:480px}
.hero-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.pill{font-family:'JetBrains Mono',monospace;font-size:.6rem;padding:4px 10px;border-radius:5px;background:rgba(255,255,255,.05);border:1px solid var(--border);letter-spacing:.05em;text-transform:uppercase}
.pill.u{border-color:rgba(224,90,30,.3);color:var(--ue-lt);background:rgba(224,90,30,.07)}
.pill.bp{border-color:rgba(74,144,217,.3);color:var(--bp-lt);background:rgba(74,144,217,.07)}
.hero-cta{background:var(--ue);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:1.05rem;letter-spacing:.1em;padding:11px 26px;border-radius:10px;box-shadow:0 4px 0 var(--ue-dk);transition:transform .12s,filter .15s;display:inline-block;margin-top:16px}
.hero-cta:hover{filter:brightness(1.15);transform:translateY(-2px)}
.hero-preview{background:var(--bg3);border:1px solid var(--border);border-radius:14px;padding:16px 18px;min-width:200px}
.hero-preview-title{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ue-lt);margin-bottom:10px}
.hero-stat{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid var(--border);font-size:.8rem}
.hero-stat:last-child{border-bottom:none}
.hero-stat-label{color:var(--muted);font-size:.72rem}
.hero-stat-val{font-family:'Bebas Neue',sans-serif;font-size:.95rem;letter-spacing:.05em;color:var(--ue-lt)}

.main-layout{display:grid;grid-template-columns:1fr 400px;max-width:1400px;margin:0 auto;min-height:calc(100vh - 60px)}
@media(max-width:960px){.main-layout{grid-template-columns:1fr}}
.steps-panel{border-right:1px solid var(--border)}
.steps-tabs{display:flex;overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--border);background:var(--bg2)}
.steps-tabs::-webkit-scrollbar{display:none}
.tab-btn{flex-shrink:0;padding:12px 9px;font-family:'JetBrains Mono',monospace;font-size:.54rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);background:none;border:none;cursor:pointer;border-bottom:2px solid transparent;transition:color .15s,border-color .15s;white-space:nowrap}
.tab-btn:hover{color:var(--text)}
.tab-btn.active{color:var(--ue-lt);border-bottom-color:var(--ue)}
.tab-btn.done::before{content:"✅ ";color:var(--green)}
.step-body{padding:24px 28px;overflow-y:auto;max-height:calc(100vh - 120px)}
@media(max-width:960px){.step-body{max-height:none}}
@media(max-width:680px){.step-body{padding:16px 12px}}
.step-num{font-family:'JetBrains Mono',monospace;font-size:.6rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ue-lt);margin-bottom:5px}
.step-title{font-family:'Bebas Neue',sans-serif;font-size:1.75rem;letter-spacing:.04em;color:white;margin-bottom:8px;line-height:1}
.step-intro{font-size:.86rem;color:var(--muted);line-height:1.75;margin-bottom:14px}
.step-intro strong{color:var(--text)}

.box{border-radius:10px;padding:10px 14px;margin:8px 0;font-size:.78rem;line-height:1.6;display:flex;gap:9px;align-items:flex-start}
.box-concept{background:rgba(224,90,30,.06);border:1px solid rgba(224,90,30,.2);color:rgba(232,234,240,.75)}
.box-concept::before{content:"💡";flex-shrink:0}
.box-tip{background:rgba(74,222,128,.06);border:1px solid rgba(74,222,128,.18);color:rgba(232,234,240,.75)}
.box-tip::before{content:"✅";flex-shrink:0}
.box-ue{background:rgba(74,144,217,.07);border:1px solid rgba(74,144,217,.22);color:rgba(232,234,240,.8)}
.box-ue::before{content:"🔧";flex-shrink:0}
.box-warn{background:rgba(245,200,66,.06);border:1px solid rgba(245,200,66,.2);color:rgba(232,234,240,.75)}
.box-warn::before{content:"⚠️";flex-shrink:0}

/* -- INTERACTIVE BLUEPRINT CANVAS -- */
.bp-outer{margin:12px 0}
.bp-outer.shake{animation:bpshake .35s ease}
@keyframes bpshake{0%,100%{transform:translateX(0)}20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}}
.bp-canvas-wrap{border-radius:12px;overflow:hidden;border:2px solid rgba(74,144,217,.2);background:#11111f;position:relative;cursor:crosshair}
.bp-canvas-wrap canvas{display:block;width:100%}
.bp-hint{font-family:'JetBrains Mono',monospace;font-size:.58rem;letter-spacing:.07em;color:rgba(74,144,217,.55);padding:5px 12px;background:rgba(74,144,217,.04);border-top:1px solid rgba(74,144,217,.1)}

.task-list{margin:10px 0;display:flex;flex-direction:column;gap:5px}
.task-item{display:flex;align-items:center;gap:8px;font-size:.78rem;padding:7px 11px;border-radius:7px;background:rgba(255,255,255,.03);border:1px solid var(--border);transition:all .3s;color:var(--muted)}
.task-item.done{background:rgba(74,222,128,.07);border-color:rgba(74,222,128,.22);color:var(--green)}
.task-dot{width:8px;height:8px;border-radius:50%;border:1.5px solid currentColor;flex-shrink:0;transition:background .3s}
.task-item.done .task-dot{background:var(--green)}

.run-btn{width:100%;margin-top:12px;padding:12px;background:var(--ue);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:1rem;letter-spacing:.1em;border:none;border-radius:10px;cursor:pointer;box-shadow:0 4px 0 var(--ue-dk);transition:transform .1s,filter .15s,opacity .2s;display:flex;align-items:center;justify-content:center;gap:7px}
.run-btn:not(:disabled):hover{filter:brightness(1.15);transform:translateY(-1px)}
.run-btn:active{transform:translateY(2px);box-shadow:0 2px 0 var(--ue-dk)}
.run-btn:disabled{opacity:.35;cursor:not-allowed;transform:none;filter:none}

.step-nav{display:flex;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}
.btn-prev,.btn-next{flex:1;padding:10px;border-radius:8px;font-family:'Nunito',sans-serif;font-size:.84rem;font-weight:800;cursor:pointer;border:none;transition:background .15s}
.btn-prev{background:rgba(255,255,255,.05);color:var(--muted)}
.btn-prev:hover:not(:disabled){background:rgba(255,255,255,.1);color:var(--text)}
.btn-next{background:rgba(224,90,30,.12);color:var(--ue-lt);border:1px solid rgba(224,90,30,.22)}
.btn-next:hover:not(:disabled){background:rgba(224,90,30,.22)}
.btn-prev:disabled,.btn-next:disabled{opacity:.3;cursor:default}

.game-panel{background:var(--bg);display:flex;flex-direction:column;position:sticky;top:60px;height:calc(100vh - 60px)}
@media(max-width:960px){.game-panel{position:static;height:auto;border-top:1px solid var(--border)}}
.game-top{padding:10px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.game-top-title{font-family:'JetBrains Mono',monospace;font-size:.62rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.game-live{display:flex;align-items:center;gap:6px;font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--ue-lt)}
.live-dot{width:6px;height:6px;border-radius:50%;background:var(--ue);animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}
.game-wrap{flex:1;position:relative;overflow:hidden;padding:10px}
canvas#gameCanvas{width:100%;border-radius:10px;box-shadow:0 0 0 1px rgba(255,255,255,.06),0 8px 40px rgba(0,0,0,.8);display:block;image-rendering:pixelated}
.game-hud{display:flex;border-top:1px solid var(--border);flex-shrink:0}
.hud-box{flex:1;padding:7px 10px;border-right:1px solid var(--border);text-align:center}
.hud-box:last-child{border-right:none}
.hud-val{font-family:'Bebas Neue',sans-serif;font-size:1.25rem;letter-spacing:.05em}
.hud-lbl{font-family:'JetBrains Mono',monospace;font-size:.5rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.output-bar{padding:7px 14px;border-top:1px solid var(--border);font-family:'JetBrains Mono',monospace;font-size:.62rem;min-height:30px;color:var(--ue-lt)}

.progress-strip{background:var(--bg2);border-top:1px solid var(--border);padding:9px 20px;display:flex;align-items:center;gap:14px;max-width:1400px;margin:0 auto;width:100%;position:sticky;bottom:0;z-index:50}
.prog-label{font-family:'JetBrains Mono',monospace;font-size:.56rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ue-lt);flex-shrink:0}
.prog-track{flex:1;height:4px;background:rgba(255,255,255,.07);border-radius:999px;overflow:hidden}
.prog-fill{height:100%;background:linear-gradient(90deg,var(--ue),var(--bp-lt));border-radius:999px;transition:width .4s ease}
.prog-dots{display:flex;gap:3px;flex-shrink:0;flex-wrap:wrap;max-width:190px;justify-content:flex-end}
.prog-dot{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.1);transition:all .3s}
.prog-dot.done{background:var(--green)}.prog-dot.active{background:var(--ue);transform:scale(1.3)}

.more-section{padding:48px 24px;max-width:1400px;margin:0 auto}
.more-title{font-family:'Bebas Neue',sans-serif;font-size:1.9rem;letter-spacing:.04em;color:white;margin-bottom:18px}
.more-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.more-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:16px 18px;display:flex;flex-direction:column;gap:6px;transition:border-color .2s,transform .2s}
.more-card:hover{border-color:rgba(255,255,255,.15);transform:translateY(-3px)}
.more-icon{font-size:1.4rem}
.more-tag{font-family:'JetBrains Mono',monospace;font-size:.56rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.more-name{font-family:'Bebas Neue',sans-serif;font-size:.95rem;letter-spacing:.04em;color:white}
.more-cta{font-size:.74rem;font-weight:700;margin-top:auto}
footer{background:var(--bg2);border-top:1px solid var(--border);padding:20px;text-align:center;color:var(--muted);font-size:.74rem}
footer a{color:var(--muted)}footer a:hover{color:var(--text)}

@media(max-width:1024px){.jvds-nav-links{display:none!important;}.jvds-nav-toggle{display:block!important;}}
@media(min-width:1025px){.jvds-mobile-nav{display:none!important;}}
/* ---------------------------------------------------------- */

/* -- ON-SCREEN D-PAD --------------------------------------- */
.dpad-wrap{display:none;justify-content:center;align-items:center;gap:8px;padding:10px 12px 14px;border-top:1px solid var(--border);background:rgba(0,0,0,.3);flex-shrink:0;}
@media(max-width:860px){.dpad-wrap{display:flex;}}
.dpad{display:grid;grid-template-columns:48px 48px 48px;grid-template-rows:48px 48px 48px;gap:4px;}
.dpad-btn{display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:10px;font-size:1.1rem;cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:none;transition:background .1s,transform .1s;}
.dpad-btn:active,.dpad-btn.pressed{background:rgba(255,255,255,.22);transform:scale(.9);}
.dpad-blank{background:transparent;border:none;}
.dpad-hint{font-family:'JetBrains Mono',monospace;font-size:.48rem;color:var(--muted);text-align:center;line-height:1.7;letter-spacing:.03em;max-width:80px;}
/* ----------------------------------------------------------- */

/* -- MOBILE RESPONSIVE PATCH -------------------------------- */
@media(max-width:960px){
  .game-panel{min-height:360px;}
  .game-col{min-height:360px;}
}
@media(max-width:600px){
  .blank{min-width:52px;padding:5px 8px;font-size:.8rem;}
  .code-pre{font-size:.68rem;white-space:pre-wrap;word-break:break-word;padding:10px 12px;}
  .run-btn{padding:15px;font-size:1.1rem;}
  .btn-prev,.btn-next{padding:12px 8px;font-size:.8rem;}
  .step-body{padding:16px 12px;}
  .tab-btn{padding:10px 9px;font-size:.56rem;}
  .hero-preview{display:none;}
  canvas{max-width:100%;height:auto;}
  .game-wrap{padding:6px;}
  .hero{padding:28px 16px 22px;}
  .box{font-size:.78rem;padding:9px 11px;}
  .step-title{font-size:1.5rem;}
  .hud-box{padding:6px 8px;}
  .hud-val{font-size:1rem;}
  .hud-lbl{font-size:.5rem;}
  .output-bar{font-size:.58rem;padding:6px 12px;}
}
@media(max-width:400px){
  .blank{min-width:42px;font-size:.75rem;}
  .code-pre{font-size:.62rem;}
  .tab-btn{padding:8px 6px;font-size:.5rem;}
}
/* ----------------------------------------------------------- */

/* -- XP BAR -- */
.xp-wrap{position:sticky;top:60px;z-index:90;background:rgba(7,8,10,.97);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 24px}
.xp-bar{max-width:1400px;margin:0 auto;display:flex;align-items:center;gap:12px;height:38px}
.xp-icon{font-size:1rem}
.xp-label{font-family:'Bebas Neue',sans-serif;font-size:.85rem;letter-spacing:.06em;color:var(--ue-lt);min-width:52px}
.xp-track{flex:1;height:6px;background:rgba(255,255,255,.07);border-radius:99px;overflow:hidden}
.xp-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--ue),var(--ue-lt));border-radius:99px;transition:width .4s ease}
.xp-level{font-family:'Bebas Neue',sans-serif;font-size:.8rem;letter-spacing:.06em;color:var(--gold);background:rgba(245,200,66,.1);border:1px solid rgba(245,200,66,.2);padding:2px 10px;border-radius:8px;white-space:nowrap}
.xp-streak{display:flex;align-items:center;gap:3px;font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--ue-lt);min-width:36px}
.xp-pop{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);font-family:'Bebas Neue',sans-serif;font-size:2.5rem;color:var(--ue-lt);pointer-events:none;z-index:999;text-shadow:0 0 30px rgba(224,90,30,.6);animation:xpPopAnim .7s ease forwards}
@keyframes xpPopAnim{0%{transform:translate(-50%,-50%) scale(0);opacity:1}50%{transform:translate(-50%,-50%) scale(1.2);opacity:1}100%{transform:translate(-50%,-80%) scale(1);opacity:0}}
.xp-toast{position:fixed;bottom:24px;right:24px;background:rgba(224,90,30,.95);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:1rem;letter-spacing:.06em;padding:10px 22px;border-radius:12px;z-index:999;transform:translateY(80px);opacity:0;transition:all .3s ease;pointer-events:none}
.xp-toast.show{transform:translateY(0);opacity:1}
.levelup-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:9999;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s}
.levelup-overlay.show{opacity:1;pointer-events:auto}
.levelup-card{background:linear-gradient(135deg,#1a1000,#2a1800);border:2px solid var(--gold);border-radius:20px;padding:36px 48px;text-align:center;transform:scale(.8);transition:transform .3s}
.levelup-overlay.show .levelup-card{transform:scale(1)}
.levelup-card h2{font-family:'Bebas Neue',sans-serif;font-size:2.4rem;color:var(--gold);letter-spacing:.06em;margin-bottom:6px}
.levelup-card p{color:rgba(245,200,66,.7);font-size:.9rem}
.levelup-card button{margin-top:18px;background:var(--gold);color:#1a1000;font-family:'Bebas Neue',sans-serif;font-size:1rem;letter-spacing:.08em;padding:10px 28px;border:none;border-radius:10px;cursor:pointer}

/* -- QUIZ GATE -- */
.quiz-gate{margin:16px 0;padding:18px;background:rgba(224,90,30,.05);border:1px solid rgba(224,90,30,.2);border-radius:14px;display:none}
.quiz-gate.visible{display:block;animation:fadeSlideIn .3s ease}
@keyframes fadeSlideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.quiz-header{font-family:'Bebas Neue',sans-serif;font-size:1.1rem;letter-spacing:.04em;color:var(--ue-lt);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.quiz-opt{display:block;width:100%;text-align:left;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:10px;padding:10px 14px;margin:6px 0;font-size:.82rem;color:var(--text);cursor:pointer;transition:all .15s;font-family:'Nunito',sans-serif}
.quiz-opt:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15)}
.quiz-opt.selected{border-color:var(--ue);background:rgba(224,90,30,.1);color:var(--ue-lt)}
.quiz-opt.correct{border-color:var(--green);background:rgba(74,222,128,.1);color:var(--green)}
.quiz-opt.wrong{border-color:var(--red);background:rgba(248,113,113,.08);color:var(--red);opacity:.6}
.quiz-feedback{font-size:.8rem;margin-top:8px;padding:8px 12px;border-radius:8px;display:none}
.quiz-feedback.correct{display:block;background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.2);color:var(--green)}
.quiz-feedback.wrong{display:block;background:rgba(248,113,113,.06);border:1px solid rgba(248,113,113,.18);color:var(--red)}
.quiz-submit{margin-top:10px;width:100%;padding:10px;background:var(--ue);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:.95rem;letter-spacing:.08em;border:none;border-radius:10px;cursor:pointer;transition:filter .15s}
.quiz-submit:hover{filter:brightness(1.15)}
.quiz-submit:disabled{opacity:.4;cursor:not-allowed}
.quiz-next-btn{margin-top:10px;width:100%;padding:10px;background:linear-gradient(135deg,var(--green),#22c55e);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:.95rem;letter-spacing:.08em;border:none;border-radius:10px;cursor:pointer;display:none}
.quiz-next-btn.visible{display:block;animation:fadeSlideIn .3s ease}

/* -- CODE CHALLENGE -- */
.code-challenge{background:linear-gradient(135deg,rgba(74,144,217,.06),rgba(0,0,0,.2));border:1px solid rgba(74,144,217,.25);border-radius:14px;padding:20px 18px;margin-top:16px}
.code-challenge.passed{border-color:var(--green);background:rgba(74,222,128,.06)}
.cc-header{font-family:'Bebas Neue',sans-serif;font-size:1.05rem;letter-spacing:.04em;color:var(--bp-lt);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.cc-pre{background:#0e1520;border:1px solid rgba(74,144,217,.2);border-radius:10px;padding:14px 16px;font-family:'JetBrains Mono',monospace;font-size:.8rem;line-height:1.8;color:#ddd;overflow-x:auto;white-space:pre;margin:10px 0}
.cc-blank{display:inline-block;min-width:90px;background:rgba(74,144,217,.12);border:2px dashed rgba(74,144,217,.4);border-radius:6px;padding:2px 8px;color:var(--bp-lt);font-family:'JetBrains Mono',monospace;font-size:.8rem;outline:none;transition:border-color .2s}
.cc-blank:focus{border-color:var(--bp-lt);background:rgba(74,144,217,.18)}
.cc-blank.correct{border-color:var(--green);background:rgba(74,222,128,.1);border-style:solid;color:var(--green)}
.cc-blank.wrong{border-color:var(--red);background:rgba(248,113,113,.08);border-style:solid;color:var(--red)}
.cc-feedback{font-size:.82rem;line-height:1.6;padding:10px 12px;border-radius:8px;margin-top:10px;display:none}
.cc-feedback.correct.show{display:flex;gap:8px;background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.2);color:var(--green)}
.cc-feedback.wrong.show{display:flex;gap:8px;background:rgba(248,113,113,.06);border:1px solid rgba(248,113,113,.18);color:var(--red)}
.cc-hint{font-size:.75rem;color:var(--muted);margin-top:6px;display:none}
.cc-hint.show{display:block}
.cc-submit{margin-top:10px;padding:10px 20px;background:var(--bp);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:.9rem;letter-spacing:.08em;border:none;border-radius:10px;cursor:pointer;transition:filter .15s}
.cc-submit:hover{filter:brightness(1.15)}
.cc-submit:disabled{opacity:.4;cursor:not-allowed}

/* -- CONCEPT FILL -- */
.concept-fill{background:linear-gradient(135deg,rgba(245,200,66,.06),rgba(0,0,0,.15));border:1px solid rgba(245,200,66,.25);border-radius:14px;padding:20px 18px;margin-top:16px}
.concept-fill.passed{border-color:var(--green);background:rgba(74,222,128,.06)}
.cf-header{font-family:'Bebas Neue',sans-serif;font-size:1.05rem;letter-spacing:.04em;color:var(--gold);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.cf-sentence{font-size:.86rem;color:var(--text);line-height:2;margin:10px 0}
.cf-blank{display:inline-block;min-width:80px;background:rgba(245,200,66,.1);border:2px dashed rgba(245,200,66,.35);border-radius:6px;padding:2px 8px;color:var(--gold);font-family:'JetBrains Mono',monospace;font-size:.82rem;outline:none;transition:border-color .2s}
.cf-blank:focus{border-color:var(--gold);background:rgba(245,200,66,.15)}
.cf-blank.correct{border-color:var(--green);background:rgba(74,222,128,.1);border-style:solid;color:var(--green)}
.cf-blank.wrong{border-color:var(--red);background:rgba(248,113,113,.08);border-style:solid;color:var(--red)}
.cf-feedback{font-size:.82rem;line-height:1.6;padding:10px 12px;border-radius:8px;margin-top:10px;display:none}
.cf-feedback.correct.show{display:flex;gap:8px;background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.2);color:var(--green)}
.cf-feedback.wrong.show{display:flex;gap:8px;background:rgba(248,113,113,.06);border:1px solid rgba(248,113,113,.18);color:var(--red)}
.cf-submit{margin-top:10px;padding:10px 20px;background:var(--gold);color:#1a1000;font-family:'Bebas Neue',sans-serif;font-size:.9rem;letter-spacing:.08em;border:none;border-radius:10px;cursor:pointer;transition:filter .15s}
.cf-submit:hover{filter:brightness(1.15)}
.cf-submit:disabled{opacity:.4;cursor:not-allowed}

/* -- TRUE / FALSE -- */
.tf-round{background:linear-gradient(135deg,rgba(45,212,191,.06),rgba(0,0,0,.15));border:1px solid rgba(45,212,191,.25);border-radius:14px;padding:20px 18px;margin-top:16px}
.tf-round.passed{border-color:var(--green);background:rgba(74,222,128,.06)}
.tf-header{font-family:'Bebas Neue',sans-serif;font-size:1.05rem;letter-spacing:.04em;color:var(--teal);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.tf-item{display:flex;align-items:center;gap:12px;padding:10px 12px;background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:10px;margin-bottom:8px;font-size:.82rem;color:var(--text);line-height:1.5}
.tf-statement{flex:1}
.tf-btns{display:flex;gap:6px;flex-shrink:0}
.tf-btn{padding:5px 12px;border-radius:8px;border:2px solid rgba(255,255,255,.15);background:rgba(255,255,255,.04);font-family:'Bebas Neue',sans-serif;font-size:.78rem;letter-spacing:.06em;cursor:pointer;transition:all .18s;color:var(--muted)}
.tf-btn:hover{border-color:rgba(45,212,191,.4);color:var(--teal)}
.tf-btn.selected{background:rgba(45,212,191,.15);border-color:var(--teal);color:var(--teal)}
.tf-btn.correct-answer{background:rgba(74,222,128,.15);border-color:var(--green);color:var(--green)}
.tf-btn.wrong-answer{background:rgba(248,113,113,.1);border-color:var(--red);color:var(--red)}
.tf-feedback{font-size:.82rem;line-height:1.6;padding:10px 12px;border-radius:8px;margin-top:10px;display:none}
.tf-feedback.correct.show{display:flex;gap:8px;background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.2);color:var(--green)}
.tf-feedback.wrong.show{display:flex;gap:8px;background:rgba(248,113,113,.06);border:1px solid rgba(248,113,113,.18);color:var(--red)}
.tf-submit{margin-top:10px;padding:10px 20px;background:var(--teal);color:#000;font-family:'Bebas Neue',sans-serif;font-size:.9rem;letter-spacing:.08em;border:none;border-radius:10px;cursor:pointer;transition:filter .15s}
.tf-submit:hover{filter:brightness(1.15)}
.tf-submit:disabled{opacity:.4;cursor:not-allowed}

/* -- ORDER CHALLENGE -- */
.order-challenge{background:linear-gradient(135deg,rgba(224,90,30,.06),rgba(0,0,0,.15));border:1px solid rgba(224,90,30,.25);border-radius:14px;padding:20px 18px;margin-top:16px}
.order-challenge.passed{border-color:var(--green);background:rgba(74,222,128,.06)}
.oc-header{font-family:'Bebas Neue',sans-serif;font-size:1.05rem;letter-spacing:.04em;color:var(--ue-lt);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.oc-items{display:flex;flex-direction:column;gap:8px;margin:10px 0}
.oc-item{display:flex;align-items:center;gap:12px;padding:10px 14px;background:rgba(255,255,255,.04);border:2px solid rgba(255,255,255,.1);border-radius:10px;cursor:pointer;transition:all .18s;font-size:.82rem;color:var(--text);user-select:none}
.oc-item:hover{border-color:rgba(224,90,30,.3);background:rgba(224,90,30,.06)}
.oc-item .oc-num{width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,.06);border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-family:'Bebas Neue',sans-serif;font-size:.75rem;color:var(--muted);flex-shrink:0;transition:all .18s}
.oc-item.picked .oc-num{background:var(--ue);border-color:var(--ue);color:#fff}
.oc-item.correct-pos .oc-num{background:var(--green);border-color:var(--green);color:#000}
.oc-item.wrong-pos .oc-num{background:var(--red);border-color:var(--red);color:#fff}
.oc-feedback{font-size:.82rem;line-height:1.6;padding:10px 12px;border-radius:8px;margin-top:10px;display:none}
.oc-feedback.correct.show{display:flex;gap:8px;background:rgba(74,222,128,.08);border:1px solid rgba(74,222,128,.2);color:var(--green)}
.oc-feedback.wrong.show{display:flex;gap:8px;background:rgba(248,113,113,.06);border:1px solid rgba(248,113,113,.18);color:var(--red)}
.oc-btns{display:flex;gap:8px;margin-top:10px}
.oc-submit{padding:10px 20px;background:var(--ue);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:.9rem;letter-spacing:.08em;border:none;border-radius:10px;cursor:pointer;transition:filter .15s}
.oc-submit:hover{filter:brightness(1.15)}
.oc-submit:disabled{opacity:.4;cursor:not-allowed}
.oc-reset-btn{padding:10px 16px;background:rgba(255,255,255,.06);color:var(--muted);font-family:'Bebas Neue',sans-serif;font-size:.9rem;letter-spacing:.08em;border:1px solid var(--border);border-radius:10px;cursor:pointer;transition:all .15s}
.oc-reset-btn:hover{background:rgba(255,255,255,.1);color:var(--text)}

/* -- PREDICT CHALLENGE -- */
.predict-challenge{background:linear-gradient(135deg,rgba(74,144,217,.06),rgba(167,139,250,.06));border:1px solid rgba(74,144,217,.25);border-radius:14px;padding:20px 18px;margin-top:16px}
.predict-challenge.passed{border-color:var(--green);background:rgba(74,222,128,.06)}
.predict-header{font-family:'Bebas Neue',sans-serif;font-size:1.05rem;letter-spacing:.04em;color:var(--bp-lt);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.predict-submit{margin-top:10px;padding:10px 20px;background:var(--bp);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:.9rem;letter-spacing:.08em;border:none;border-radius:10px;cursor:pointer;transition:filter .15s}
.predict-submit:hover{filter:brightness(1.15)}
.predict-submit:disabled{opacity:.4;cursor:not-allowed}

/* -- FINISH BANNER -- */
.finish-banner{display:none;text-align:center;padding:40px 24px;background:linear-gradient(135deg,rgba(224,90,30,.08),rgba(74,144,217,.06));border:1px solid rgba(224,90,30,.2);border-radius:18px}
.finish-banner.visible{display:block;animation:fadeSlideIn .5s ease}
.confetti-row{font-size:1.8rem;letter-spacing:6px;margin-bottom:10px}
.finish-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(1.6rem,4vw,2.4rem);color:white;letter-spacing:.04em;margin-bottom:8px}
.finish-sub{font-size:.9rem;color:var(--muted);max-width:560px;margin:0 auto 20px;line-height:1.7}
.final-stats{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-bottom:20px}
.final-stat{background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:12px;padding:14px 20px;min-width:100px}
.stat-val{font-family:'Bebas Neue',sans-serif;font-size:1.6rem;color:var(--ue-lt)}
.stat-label{font-family:'JetBrains Mono',monospace;font-size:.55rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:2px}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}.skip-link:focus{left:50%;transform:translateX(-50%);top:8px;width:auto;height:auto;padding:10px 20px;background:#BC4749;color:white;font-weight:700;font-size:.9rem;border-radius:8px;z-index:9999;text-decoration:none;white-space:nowrap}