:root {
  --bg:#07090a;--bg2:#0c0f11;--bg3:#111418;
  --border:rgba(255,255,255,.07);
  --text:#e8edf2;--muted:rgba(232,237,242,.38);
  --acc:#f5c400;--acc-lt:#ffe055;--acc-dk:#b08c00;
  --green:#4ade80;--red:#f87171;--blue:#38bdf8;--orange:#fb923c;--purple:#a78bfa;
  --track:#2a7c3f;--road:#1e2228;
}
html,body{height:100%;font-family:'Nunito',sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden}

/* -- HEADER -- */
.hdr{position:sticky;top:0;z-index:90;background:rgba(7,9,10,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 18px}
.logo{font-family:'Bebas Neue',sans-serif;font-size:1.15rem;letter-spacing:.06em;display:flex;align-items:center;gap:8px}
.hdr-right{display:flex;align-items:center;gap:10px}
.quick-btn{background:linear-gradient(135deg,var(--acc),#c89800);color:#07090a;font-family:'Bebas Neue',sans-serif;font-size:.88rem;letter-spacing:.08em;padding:7px 16px;border-radius:8px;border:none;cursor:pointer;box-shadow:0 3px 0 var(--acc-dk);transition:filter .15s,transform .1s}
.quick-btn:hover{filter:brightness(1.15);transform:translateY(-1px)}
.back-link{font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--muted);padding:5px 12px;border:1px solid var(--border);border-radius:6px;text-decoration:none;transition:color .15s,border-color .15s}
.back-link:hover{color:var(--text);border-color:rgba(255,255,255,.2)}

/* -- HERO -- */
.hero{padding:30px 18px 22px;border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(rgba(245,196,0,.06) 1px,transparent 1px);background-size:28px 28px}
@media(max-width:640px){.hero-inner{grid-template-columns:1fr}}
.kicker{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--acc-lt);margin-bottom:7px}
.hero-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(2.4rem,7vw,4rem);line-height:.92;letter-spacing:.03em;color:#fff;margin-bottom:9px}
.hero-title .hl{color:var(--acc)}
.hero-desc{font-size:.86rem;color:var(--muted);line-height:1.72;max-width:440px}
.pill{font-family:'JetBrains Mono',monospace;font-size:.56rem;padding:3px 8px;border-radius:4px;background:rgba(255,255,255,.05);border:1px solid var(--border);letter-spacing:.05em;text-transform:uppercase}
.pill.go{border-color:rgba(245,196,0,.35);color:var(--acc-lt);background:rgba(245,196,0,.07)}

/* car card */
.car-card{background:rgba(255,255,255,.03);border:1px solid rgba(245,196,0,.18);border-radius:12px;padding:13px 16px;min-width:190px}
.car-card-title{font-family:'JetBrains Mono',monospace;font-size:.54rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--acc);margin-bottom:8px}
.car-name{font-family:'Bebas Neue',sans-serif;font-size:1.25rem;letter-spacing:.05em;color:#fff;margin-bottom:5px}
.car-stat{display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.04);font-size:.72rem}
.car-stat:last-child{border:none}
.car-stat-l{color:var(--muted)}
.car-stat-r{font-family:'JetBrains Mono',monospace;color:var(--acc);font-size:.68rem}

/* -- MAIN LAYOUT -- */
.layout{display:grid;grid-template-columns:1fr 400px;max-width:1440px;margin:0 auto;min-height:calc(100vh - 54px)}
@media(max-width:1080px){.layout{grid-template-columns:1fr}}

/* LEFT, STEPS */
.steps-col{border-right:1px solid var(--border);display:flex;flex-direction:column}
.step-tabs{display:flex;overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--border);background:var(--bg2);flex-shrink:0}
.step-tabs::-webkit-scrollbar{display:none}
.tb{flex-shrink:0;padding:10px 9px;font-family:'JetBrains Mono',monospace;font-size:.5rem;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}
.tb:hover{color:var(--text)}
.tb.active{color:var(--acc-lt);border-bottom-color:var(--acc)}
.tb.done::before{content:"✅ ";color:var(--green)}
@media(max-width:640px){.step-body{padding:14px 12px}}
.step-tag{font-family:'JetBrains Mono',monospace;font-size:.56rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--acc-lt);margin-bottom:3px}
.step-intro{font-size:.83rem;color:var(--muted);line-height:1.75;margin-bottom:11px}
.step-intro strong{color:var(--text)}

/* BOXES */
.box{border-radius:8px;padding:9px 12px;margin:6px 0;font-size:.76rem;line-height:1.58;display:flex;gap:8px;align-items:flex-start}
.box::before{flex-shrink:0;margin-top:1px}
.box-c{background:rgba(245,196,0,.05);border:1px solid rgba(245,196,0,.16);color:rgba(232,237,242,.7)}
.box-c::before{content:"💡"}
.box-t{background:rgba(74,222,128,.05);border:1px solid rgba(74,222,128,.14);color:rgba(232,237,242,.7)}
.box-t::before{content:"✅"}
.box-w{background:rgba(248,113,113,.05);border:1px solid rgba(248,113,113,.18);color:rgba(232,237,242,.7)}
.box-w::before{content:"⚠️"}
.box-r{background:rgba(56,189,248,.05);border:1px solid rgba(56,189,248,.18);color:rgba(232,237,242,.8)}
.box-r::before{content:"📊"}

/* INPUT PANEL */
.cfg-panel{background:rgba(255,255,255,.025);border:1px solid rgba(245,196,0,.14);border-radius:9px;padding:12px 14px;margin:10px 0}
.cfg-row{display:flex;align-items:center;gap:10px;padding:5px 0;border-bottom:1px solid rgba(255,255,255,.04)}
.cfg-row:last-child{border-bottom:none}
.cfg-lbl{font-family:'JetBrains Mono',monospace;font-size:.62rem;color:var(--muted);letter-spacing:.06em;flex:1;text-transform:uppercase}
.cfg-input{background:#0c0e10;border:1px solid rgba(245,196,0,.25);border-radius:5px;color:var(--acc-lt);font-family:'JetBrains Mono',monospace;font-size:.82rem;padding:4px 8px;width:90px;outline:none;text-align:right}
.cfg-input:focus{border-color:var(--acc);box-shadow:0 0 0 2px rgba(245,196,0,.12)}
.cfg-input.bad{border-color:var(--red)!important}

/* COLOUR SWATCHES */
.swatch-row{display:flex;gap:7px;flex-wrap:wrap;margin:6px 0}
.swatch{width:28px;height:28px;border-radius:6px;cursor:pointer;border:2px solid transparent;transition:transform .12s,border-color .12s}
.swatch:hover{transform:scale(1.15)}
.swatch.sel{border-color:#fff;transform:scale(1.18)}

/* BUTTONS */
.run-btn{width:100%;margin-top:9px;padding:11px;background:var(--acc);color:#07090a;font-family:'Bebas Neue',sans-serif;font-size:.95rem;letter-spacing:.1em;border:none;border-radius:9px;cursor:pointer;box-shadow:0 4px 0 var(--acc-dk);transition:transform .1s,filter .15s,opacity .2s;display:flex;align-items:center;justify-content:center;gap:6px}
.run-btn:not(:disabled):hover{filter:brightness(1.13);transform:translateY(-1px)}
.run-btn:disabled{opacity:.3;cursor:not-allowed;transform:none;filter:none}
.step-nav{display:flex;gap:8px;margin-top:12px;padding-top:10px;border-top:1px solid var(--border)}
.btn-p,.btn-n{flex:1;padding:9px;border-radius:7px;font-size:.8rem;font-weight:800;cursor:pointer;border:none;transition:background .15s;font-family:'Nunito',sans-serif}
.btn-p{background:rgba(255,255,255,.05);color:var(--muted)}
.btn-p:hover:not(:disabled){background:rgba(255,255,255,.09);color:var(--text)}
.btn-n{background:rgba(245,196,0,.12);color:var(--acc-lt);border:1px solid rgba(245,196,0,.22)}
.btn-n:hover:not(:disabled){background:rgba(245,196,0,.2)}
.btn-p:disabled,.btn-n:disabled{opacity:.28;cursor:default}

/* TASK LIST */
.task-list{margin:7px 0;display:flex;flex-direction:column;gap:4px}
.task-item{display:flex;align-items:center;gap:7px;font-size:.74rem;padding:5px 9px;border-radius:6px;background:rgba(255,255,255,.03);border:1px solid var(--border);color:var(--muted);transition:all .3s}
.task-item.done{background:rgba(74,222,128,.05);border-color:rgba(74,222,128,.18);color:var(--green)}
.task-dot{width:7px;height:7px;border-radius:50%;border:1.5px solid currentColor;flex-shrink:0;transition:background .3s}
.task-item.done .task-dot{background:var(--green)}

/* RIGHT, GAME */
.game-col{background:var(--bg);display:flex;flex-direction:column;position:sticky;top:54px;height:calc(100vh - 54px)}
@media(max-width:1080px){.game-col{position:static;height:auto;border-top:1px solid var(--border)}}
.game-top{padding:8px 13px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.game-top-l{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.game-top-r{display:flex;align-items:center;gap:7px}
.live-wrap{display:flex;align-items:center;gap:4px;font-family:'JetBrains Mono',monospace;font-size:.56rem;color:var(--acc-lt)}
.live-dot{width:5px;height:5px;border-radius:50%;background:var(--acc);animation:blink 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.14}}
.fs-btn{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:.6rem;padding:4px 11px;border-radius:6px;cursor:pointer;transition:all .2s}
.fs-btn:hover{background:rgba(255,255,255,.11);color:var(--text)}
.game-wrap{flex:1;position:relative;overflow:hidden;padding:6px;display:flex;align-items:center;justify-content:center}
#gc{border-radius:10px;box-shadow:0 0 0 1px rgba(255,255,255,.05),0 8px 36px rgba(0,0,0,.9);display:block;max-width:100%;max-height:100%;image-rendering:pixelated}
.game-hud{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--border);flex-shrink:0}
.hb{padding:5px 6px;border-right:1px solid var(--border);text-align:center}
.hb:last-child{border-right:none}
.hv{font-family:'Bebas Neue',sans-serif;font-size:1.15rem;letter-spacing:.04em}
.hl2{font-family:'JetBrains Mono',monospace;font-size:.44rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.obar{padding:5px 12px;border-top:1px solid var(--border);font-family:'JetBrains Mono',monospace;font-size:.58rem;min-height:26px;color:var(--acc-lt);flex-shrink:0}

.prog-bar{background:var(--bg2);border-top:1px solid var(--border);padding:7px 16px;display:flex;align-items:center;gap:11px;position:sticky;bottom:0;z-index:50;max-width:1440px;margin:0 auto;width:100%}
.prog-lbl{font-family:'JetBrains Mono',monospace;font-size:.52rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--acc-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(--acc),var(--orange));border-radius:999px;transition:width .4s ease}
.prog-dots{display:flex;gap:3px;flex-wrap:wrap;max-width:200px;justify-content:flex-end;flex-shrink:0}
.pd{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.1);transition:all .3s}
.pd.done{background:var(--green)}.pd.active{background:var(--acc);transform:scale(1.35)}

/* FULLSCREEN */
.fs-overlay{position:fixed;inset:0;z-index:500;background:#07090a;display:none;flex-direction:column;align-items:center}
.fs-overlay.open{display:flex}
.fs-hdr{position:fixed;top:0;left:0;right:0;height:50px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;background:rgba(7,9,10,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.07);z-index:10}
.fs-hud-row{display:flex;gap:18px;align-items:center}
.fs-hi{text-align:center}
.fs-hv{font-family:'Bebas Neue',sans-serif;font-size:1.3rem;letter-spacing:.04em}
.fs-hl{font-family:'JetBrains Mono',monospace;font-size:.44rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.fs-sep{width:1px;height:28px;background:rgba(255,255,255,.08)}
.fs-close{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.11);color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:.65rem;padding:5px 13px;border-radius:6px;cursor:pointer;transition:all .2s}
.fs-close:hover{background:rgba(255,255,255,.13);color:var(--text)}
.fs-canvas-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:50px 0 26px;width:100%}
#gcFS{image-rendering:pixelated;display:block}
.fs-foot{position:fixed;bottom:0;left:0;right:0;height:26px;padding:4px 16px;font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--acc-lt);background:rgba(7,9,10,.9);border-top:1px solid rgba(255,255,255,.05)}

footer{background:var(--bg2);border-top:1px solid var(--border);padding:16px;text-align:center;color:var(--muted);font-size:.7rem}
footer a{color:var(--muted);text-decoration:none}footer a:hover{color:var(--text)}

/* -- TOUCH D-PAD -- */
.touch-dpad{display:none;justify-content:center;align-items:center;gap:18px;padding:10px 16px 14px;border-top:1px solid var(--border);background:rgba(0,0,0,.3);flex-shrink:0}
@media(pointer:coarse){.touch-dpad{display:flex}}
.dpad-cluster{display:flex;gap:8px;align-items:center}
.dpad-btn{width:58px;height:58px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:12px;font-size:1.3rem;color:var(--text);cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:none;transition:background .1s,transform .1s,border-color .1s}
.dpad-btn.pressed{background:rgba(245,196,0,.2);border-color:rgba(245,196,0,.5);transform:scale(.9)}
.dpad-restart{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(245,196,0,.1);border:1px solid rgba(245,196,0,.3);font-size:.65rem;font-family:'JetBrains Mono',monospace;letter-spacing:.06em;color:var(--acc-lt);cursor:pointer;touch-action:none;transition:background .1s,transform .1s}
.dpad-restart.pressed{background:rgba(245,196,0,.28);transform:scale(.9)}





/* -- CODE CHALLENGE -- */

@keyframes xpFade{0%{opacity:1;transform:translateX(-50%) translateY(0)}100%{opacity:0;transform:translateX(-50%) translateY(-40px)}}


  :root {
  --bg:#07090a;--bg2:#0c0f11;--bg3:#111418;
  --border:rgba(255,255,255,.07);
  --text:#e8edf2;--muted:rgba(232,237,242,.38);
  --acc:#f5c400;--acc-lt:#ffe055;--acc-dk:#b08c00;
  --green:#4ade80;--red:#f87171;--blue:#38bdf8;--orange:#fb923c;--purple:#a78bfa;
  --track:#2a7c3f;--road:#1e2228;
}
html,body{height:100%;font-family:'Nunito',sans-serif;background:var(--bg);color:var(--text);overflow-x:hidden}

/* -- HEADER -- */
.hdr{position:sticky;top:0;z-index:90;background:rgba(7,9,10,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 18px}
.logo{font-family:'Bebas Neue',sans-serif;font-size:1.15rem;letter-spacing:.06em;display:flex;align-items:center;gap:8px}
.hdr-right{display:flex;align-items:center;gap:10px}
.quick-btn{background:linear-gradient(135deg,var(--acc),#c89800);color:#07090a;font-family:'Bebas Neue',sans-serif;font-size:.88rem;letter-spacing:.08em;padding:7px 16px;border-radius:8px;border:none;cursor:pointer;box-shadow:0 3px 0 var(--acc-dk);transition:filter .15s,transform .1s}
.quick-btn:hover{filter:brightness(1.15);transform:translateY(-1px)}
.back-link{font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--muted);padding:5px 12px;border:1px solid var(--border);border-radius:6px;text-decoration:none;transition:color .15s,border-color .15s}
.back-link:hover{color:var(--text);border-color:rgba(255,255,255,.2)}

/* -- HERO -- */
.hero{padding:30px 18px 22px;border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(rgba(245,196,0,.06) 1px,transparent 1px);background-size:28px 28px}
@media(max-width:640px){.hero-inner{grid-template-columns:1fr}}
.kicker{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--acc-lt);margin-bottom:7px}
.hero-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(2.4rem,7vw,4rem);line-height:.92;letter-spacing:.03em;color:#fff;margin-bottom:9px}
.hero-title .hl{color:var(--acc)}
.hero-desc{font-size:.86rem;color:var(--muted);line-height:1.72;max-width:440px}
.pill{font-family:'JetBrains Mono',monospace;font-size:.56rem;padding:3px 8px;border-radius:4px;background:rgba(255,255,255,.05);border:1px solid var(--border);letter-spacing:.05em;text-transform:uppercase}
.pill.go{border-color:rgba(245,196,0,.35);color:var(--acc-lt);background:rgba(245,196,0,.07)}

/* car card */
.car-card{background:rgba(255,255,255,.03);border:1px solid rgba(245,196,0,.18);border-radius:12px;padding:13px 16px;min-width:190px}
.car-card-title{font-family:'JetBrains Mono',monospace;font-size:.54rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--acc);margin-bottom:8px}
.car-name{font-family:'Bebas Neue',sans-serif;font-size:1.25rem;letter-spacing:.05em;color:#fff;margin-bottom:5px}
.car-stat{display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.04);font-size:.72rem}
.car-stat:last-child{border:none}
.car-stat-l{color:var(--muted)}
.car-stat-r{font-family:'JetBrains Mono',monospace;color:var(--acc);font-size:.68rem}

/* -- MAIN LAYOUT -- */
.layout{display:grid;grid-template-columns:1fr 400px;max-width:1440px;margin:0 auto;min-height:calc(100vh - 54px)}
@media(max-width:1080px){.layout{grid-template-columns:1fr}}

/* LEFT, STEPS */
.steps-col{border-right:1px solid var(--border);display:flex;flex-direction:column}
.step-tabs{display:flex;overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--border);background:var(--bg2);flex-shrink:0}
.step-tabs::-webkit-scrollbar{display:none}
.tb{flex-shrink:0;padding:10px 9px;font-family:'JetBrains Mono',monospace;font-size:.5rem;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}
.tb:hover{color:var(--text)}
.tb.active{color:var(--acc-lt);border-bottom-color:var(--acc)}
.tb.done::before{content:"✅ ";color:var(--green)}
@media(max-width:640px){.step-body{padding:14px 12px}}
.step-tag{font-family:'JetBrains Mono',monospace;font-size:.56rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--acc-lt);margin-bottom:3px}
.step-intro{font-size:.83rem;color:var(--muted);line-height:1.75;margin-bottom:11px}
.step-intro strong{color:var(--text)}

/* BOXES */
.box{border-radius:8px;padding:9px 12px;margin:6px 0;font-size:.76rem;line-height:1.58;display:flex;gap:8px;align-items:flex-start}
.box::before{flex-shrink:0;margin-top:1px}
.box-c{background:rgba(245,196,0,.05);border:1px solid rgba(245,196,0,.16);color:rgba(232,237,242,.7)}
.box-c::before{content:"💡"}
.box-t{background:rgba(74,222,128,.05);border:1px solid rgba(74,222,128,.14);color:rgba(232,237,242,.7)}
.box-t::before{content:"✅"}
.box-w{background:rgba(248,113,113,.05);border:1px solid rgba(248,113,113,.18);color:rgba(232,237,242,.7)}
.box-w::before{content:"⚠️"}
.box-r{background:rgba(56,189,248,.05);border:1px solid rgba(56,189,248,.18);color:rgba(232,237,242,.8)}
.box-r::before{content:"📊"}

/* INPUT PANEL */
.cfg-panel{background:rgba(255,255,255,.025);border:1px solid rgba(245,196,0,.14);border-radius:9px;padding:12px 14px;margin:10px 0}
.cfg-row{display:flex;align-items:center;gap:10px;padding:5px 0;border-bottom:1px solid rgba(255,255,255,.04)}
.cfg-row:last-child{border-bottom:none}
.cfg-lbl{font-family:'JetBrains Mono',monospace;font-size:.62rem;color:var(--muted);letter-spacing:.06em;flex:1;text-transform:uppercase}
.cfg-input{background:#0c0e10;border:1px solid rgba(245,196,0,.25);border-radius:5px;color:var(--acc-lt);font-family:'JetBrains Mono',monospace;font-size:.82rem;padding:4px 8px;width:90px;outline:none;text-align:right}
.cfg-input:focus{border-color:var(--acc);box-shadow:0 0 0 2px rgba(245,196,0,.12)}
.cfg-input.bad{border-color:var(--red)!important}

/* COLOUR SWATCHES */
.swatch-row{display:flex;gap:7px;flex-wrap:wrap;margin:6px 0}
.swatch{width:28px;height:28px;border-radius:6px;cursor:pointer;border:2px solid transparent;transition:transform .12s,border-color .12s}
.swatch:hover{transform:scale(1.15)}
.swatch.sel{border-color:#fff;transform:scale(1.18)}

/* BUTTONS */
.run-btn{width:100%;margin-top:9px;padding:11px;background:var(--acc);color:#07090a;font-family:'Bebas Neue',sans-serif;font-size:.95rem;letter-spacing:.1em;border:none;border-radius:9px;cursor:pointer;box-shadow:0 4px 0 var(--acc-dk);transition:transform .1s,filter .15s,opacity .2s;display:flex;align-items:center;justify-content:center;gap:6px}
.run-btn:not(:disabled):hover{filter:brightness(1.13);transform:translateY(-1px)}
.run-btn:disabled{opacity:.3;cursor:not-allowed;transform:none;filter:none}
.step-nav{display:flex;gap:8px;margin-top:12px;padding-top:10px;border-top:1px solid var(--border)}
.btn-p,.btn-n{flex:1;padding:9px;border-radius:7px;font-size:.8rem;font-weight:800;cursor:pointer;border:none;transition:background .15s;font-family:'Nunito',sans-serif}
.btn-p{background:rgba(255,255,255,.05);color:var(--muted)}
.btn-p:hover:not(:disabled){background:rgba(255,255,255,.09);color:var(--text)}
.btn-n{background:rgba(245,196,0,.12);color:var(--acc-lt);border:1px solid rgba(245,196,0,.22)}
.btn-n:hover:not(:disabled){background:rgba(245,196,0,.2)}
.btn-p:disabled,.btn-n:disabled{opacity:.28;cursor:default}

/* TASK LIST */
.task-list{margin:7px 0;display:flex;flex-direction:column;gap:4px}
.task-item{display:flex;align-items:center;gap:7px;font-size:.74rem;padding:5px 9px;border-radius:6px;background:rgba(255,255,255,.03);border:1px solid var(--border);color:var(--muted);transition:all .3s}
.task-item.done{background:rgba(74,222,128,.05);border-color:rgba(74,222,128,.18);color:var(--green)}
.task-dot{width:7px;height:7px;border-radius:50%;border:1.5px solid currentColor;flex-shrink:0;transition:background .3s}
.task-item.done .task-dot{background:var(--green)}

/* RIGHT, GAME */
.game-col{background:var(--bg);display:flex;flex-direction:column;position:sticky;top:54px;height:calc(100vh - 54px)}
@media(max-width:1080px){.game-col{position:static;height:auto;border-top:1px solid var(--border)}}
.game-top{padding:8px 13px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.game-top-l{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.game-top-r{display:flex;align-items:center;gap:7px}
.live-wrap{display:flex;align-items:center;gap:4px;font-family:'JetBrains Mono',monospace;font-size:.56rem;color:var(--acc-lt)}
.live-dot{width:5px;height:5px;border-radius:50%;background:var(--acc);animation:blink 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.14}}
.fs-btn{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:.6rem;padding:4px 11px;border-radius:6px;cursor:pointer;transition:all .2s}
.fs-btn:hover{background:rgba(255,255,255,.11);color:var(--text)}
.game-wrap{flex:1;position:relative;overflow:hidden;padding:6px;display:flex;align-items:center;justify-content:center}
#gc{border-radius:10px;box-shadow:0 0 0 1px rgba(255,255,255,.05),0 8px 36px rgba(0,0,0,.9);display:block;max-width:100%;max-height:100%;image-rendering:pixelated}
.game-hud{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--border);flex-shrink:0}
.hb{padding:5px 6px;border-right:1px solid var(--border);text-align:center}
.hb:last-child{border-right:none}
.hv{font-family:'Bebas Neue',sans-serif;font-size:1.15rem;letter-spacing:.04em}
.hl2{font-family:'JetBrains Mono',monospace;font-size:.44rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.obar{padding:5px 12px;border-top:1px solid var(--border);font-family:'JetBrains Mono',monospace;font-size:.58rem;min-height:26px;color:var(--acc-lt);flex-shrink:0}

.prog-bar{background:var(--bg2);border-top:1px solid var(--border);padding:7px 16px;display:flex;align-items:center;gap:11px;position:sticky;bottom:0;z-index:50;max-width:1440px;margin:0 auto;width:100%}
.prog-lbl{font-family:'JetBrains Mono',monospace;font-size:.52rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--acc-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(--acc),var(--orange));border-radius:999px;transition:width .4s ease}
.prog-dots{display:flex;gap:3px;flex-wrap:wrap;max-width:200px;justify-content:flex-end;flex-shrink:0}
.pd{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.1);transition:all .3s}
.pd.done{background:var(--green)}.pd.active{background:var(--acc);transform:scale(1.35)}

/* FULLSCREEN */
.fs-overlay{position:fixed;inset:0;z-index:500;background:#07090a;display:none;flex-direction:column;align-items:center}
.fs-overlay.open{display:flex}
.fs-hdr{position:fixed;top:0;left:0;right:0;height:50px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;background:rgba(7,9,10,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.07);z-index:10}
.fs-hud-row{display:flex;gap:18px;align-items:center}
.fs-hi{text-align:center}
.fs-hv{font-family:'Bebas Neue',sans-serif;font-size:1.3rem;letter-spacing:.04em}
.fs-hl{font-family:'JetBrains Mono',monospace;font-size:.44rem;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.fs-sep{width:1px;height:28px;background:rgba(255,255,255,.08)}
.fs-close{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.11);color:var(--muted);font-family:'JetBrains Mono',monospace;font-size:.65rem;padding:5px 13px;border-radius:6px;cursor:pointer;transition:all .2s}
.fs-close:hover{background:rgba(255,255,255,.13);color:var(--text)}
.fs-canvas-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:50px 0 26px;width:100%}
#gcFS{image-rendering:pixelated;display:block}
.fs-foot{position:fixed;bottom:0;left:0;right:0;height:26px;padding:4px 16px;font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--acc-lt);background:rgba(7,9,10,.9);border-top:1px solid rgba(255,255,255,.05)}

footer{background:var(--bg2);border-top:1px solid var(--border);padding:16px;text-align:center;color:var(--muted);font-size:.7rem}
footer a{color:var(--muted);text-decoration:none}footer a:hover{color:var(--text)}

/* -- TOUCH D-PAD -- */
.touch-dpad{display:none;justify-content:center;align-items:center;gap:18px;padding:10px 16px 14px;border-top:1px solid var(--border);background:rgba(0,0,0,.3);flex-shrink:0}
@media(pointer:coarse){.touch-dpad{display:flex}}
.dpad-cluster{display:flex;gap:8px;align-items:center}
.dpad-btn{width:58px;height:58px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:12px;font-size:1.3rem;color:var(--text);cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:none;transition:background .1s,transform .1s,border-color .1s}
.dpad-btn.pressed{background:rgba(245,196,0,.2);border-color:rgba(245,196,0,.5);transform:scale(.9)}
.dpad-restart{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(245,196,0,.1);border:1px solid rgba(245,196,0,.3);font-size:.65rem;font-family:'JetBrains Mono',monospace;letter-spacing:.06em;color:var(--acc-lt);cursor:pointer;touch-action:none;transition:background .1s,transform .1s}
.dpad-restart.pressed{background:rgba(245,196,0,.28);transform:scale(.9)}





/* -- CODE CHALLENGE -- */

@keyframes xpFade{0%{opacity:1;transform:translateX(-50%) translateY(0)}100%{opacity:0;transform:translateX(-50%) translateY(-40px)}}
.reveal{opacity:1!important;transform:none!important}