body{background:#0a0b10;color:#e8eaf2;min-height:100vh;overflow-x:hidden}


  :root {
  --bg:#0d0f14; --bg2:#13161e; --bg3:#1a1e2a;
  --border:rgba(255,255,255,.08);
  --text:#dde4f0; --muted:rgba(221,228,240,.45);
  --py:#f7c948; --py-lt:#fada7a; --py-dk:#c49a20;
  --blue:#4b8bbe; --blue-lt:#7db8e8;
  --green:#3ddc84; --green-lt:#6eeaaa;
  --red:#e8312b; --teal:#70A3A7;
}

/* HEADER */
.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 */
.hero{padding:44px 24px 36px;border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.hero-dots{position:absolute;inset:0;background-image:radial-gradient(rgba(247,201,72,.07) 1px,transparent 1px);background-size:28px 28px;mask-image:radial-gradient(ellipse 80% 100% at 50% 0%,black,transparent)}
@media(max-width:680px){.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(--py-lt);margin-bottom:10px}
.hero-title{font-family:'Bebas Neue',cursive;font-size:clamp(2.2rem,6vw,3.8rem);line-height:.95;letter-spacing:.03em;color:white;margin-bottom:12px}
.hero-title .py{color:var(--py)}
.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.y{border-color:rgba(247,201,72,.3);color:var(--py-lt);background:rgba(247,201,72,.07)}
.hero-cta{background:var(--py);color:var(--bg);font-family:'Bebas Neue',cursive;font-size:1.05rem;letter-spacing:.1em;padding:11px 26px;border-radius:10px;box-shadow:0 4px 0 var(--py-dk);transition:transform .12s,filter .15s;display:inline-block;margin-top:16px}
.hero-cta:hover{filter:brightness(1.08);transform:translateY(-2px)}
.hero-preview{background:var(--bg3);border:1px solid var(--border);border-radius:14px;padding:16px 18px;min-width:190px}
.hero-preview-title{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--py-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',cursive;font-size:.95rem;letter-spacing:.05em;color:var(--py-lt)}

/* MAIN LAYOUT */
.main-layout{display:grid;grid-template-columns:1fr 340px;max-width:1400px;margin:0 auto;min-height:calc(100vh - 60px)}
@media(max-width:900px){.main-layout{grid-template-columns:1fr}}

/* STEPS PANEL */
.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 13px;font-family:'JetBrains Mono',monospace;font-size:.6rem;font-weight:700;letter-spacing:.05em;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(--py-lt);border-bottom-color:var(--py)}
.tab-btn.done::before{content:"✅ ";color:var(--green-lt)}

@media(max-width:900px){.step-body{max-height:none;overflow-y:visible}}
@media(max-width:680px){.step-body{padding:18px 14px}}
.step-num{font-family:'JetBrains Mono',monospace;font-size:.6rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--py-lt);margin-bottom:5px}
.step-intro{font-size:.88rem;color:var(--muted);line-height:1.75;margin-bottom:18px}
.step-intro strong{color:var(--text);font-weight:700}

/* boxes */
.box{border-radius:10px;padding:10px 14px;margin:10px 0;font-size:.8rem;line-height:1.6;display:flex;gap:9px;align-items:flex-start}
.box-concept{background:rgba(75,139,190,.07);border:1px solid rgba(75,139,190,.2);color:rgba(221,228,240,.75)}
.box-concept::before{content:"💡";flex-shrink:0}
.box-tip{background:rgba(247,201,72,.06);border:1px solid rgba(247,201,72,.18);color:rgba(221,228,240,.75)}
.box-tip::before{content:"✅";flex-shrink:0}
.box-do{background:rgba(247,201,72,.08);border:1px solid rgba(247,201,72,.25);color:rgba(221,228,240,.82)}
.box-do::before{content:"▶️";flex-shrink:0}

/* CODE BLOCK */
.code-area{margin:14px 0}
.code-area-label{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:5px;display:flex;align-items:center;justify-content:space-between}
.live-badge{color:var(--green-lt);font-size:.56rem;padding:2px 7px;border-radius:4px;background:rgba(61,220,132,.1);border:1px solid rgba(61,220,132,.2)}
.code-block{background:#050a05;border:1px solid rgba(61,220,132,.1);border-radius:11px;overflow:hidden}
.code-block-header{padding:8px 14px;border-bottom:1px solid rgba(255,255,255,.05);display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.02)}
.dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.code-fname{font-family:'JetBrains Mono',monospace;font-size:.64rem;color:var(--muted);margin-left:4px}
.code-pre{padding:14px 16px;font-family:'JetBrains Mono',monospace;font-size:.73rem;line-height:1.75;overflow-x:auto;white-space:pre}

/* syntax */
.ck{color:#f7c948}.cs{color:#ce9178}.cn{color:#b5cea8}.cc{color:#4a5e4a}.cf{color:#7db8e8}.cg{color:#6eeaaa}

/* BLANK INPUTS */
.blank{
  display:inline-block;font-family:'JetBrains Mono',monospace;font-size:.73rem;font-weight:700;
  color:var(--bg);background:var(--py);border:none;border-radius:5px;padding:2px 7px;
  width:var(--w,52px);text-align:center;outline:none;vertical-align:middle;
  transition:background .2s,box-shadow .2s;
}
.blank:focus{background:var(--py-lt);box-shadow:0 0 0 3px rgba(247,201,72,.35)}
.blank:hover{filter:brightness(1.05)}
.blank-hint{font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--py-lt);margin-left:5px;font-style:italic;vertical-align:middle}

input[type="color"].cpick{
  width:34px;height:26px;border:2px solid rgba(255,255,255,.15);background:none;
  cursor:pointer;vertical-align:middle;border-radius:6px;padding:1px;
  outline:none;transition:border-color .2s;
}
input[type="color"].cpick:hover{border-color:rgba(255,255,255,.4)}

/* RUN BTN */
.run-btn{width:100%;margin-top:12px;padding:13px;background:var(--py);color:var(--bg);
  font-family:'Bebas Neue',cursive;font-size:1rem;letter-spacing:.1em;border:none;
  border-radius:10px;cursor:pointer;box-shadow:0 4px 0 var(--py-dk);
  transition:transform .1s,filter .15s;display:flex;align-items:center;justify-content:center;gap:7px}
.run-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.run-btn:active{transform:translateY(2px);box-shadow:0 2px 0 var(--py-dk)}

.step-nav{display:flex;gap:10px;margin-top:18px;padding-top:14px;border-top:1px solid var(--border)}
.btn-prev,.btn-next{flex:1;padding:11px;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(247,201,72,.11);color:var(--py-lt);border:1px solid rgba(247,201,72,.2)}
.btn-next:hover:not(:disabled){background:rgba(247,201,72,.2)}
.btn-prev:disabled,.btn-next:disabled{opacity:.3;cursor:default}

/* GAME PANEL */
.game-panel{background:var(--bg);display:flex;flex-direction:column;position:sticky;top:60px;height:calc(100vh - 60px)}
@media(max-width:900px){.game-panel{position:static;height:auto;border-top:1px solid var(--border)}}
.game-top{padding:11px 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(--py-lt)}
.live-dot{width:6px;height:6px;border-radius:50%;background:var(--green);animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}
.canvas-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:14px;min-height:360px}
canvas{border-radius:10px;box-shadow:0 0 0 1px rgba(255,255,255,.07),0 8px 40px rgba(0,0,0,.7)}

.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%}
.prog-label{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--py-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(--py),var(--blue));border-radius:999px;transition:width .4s ease}
.prog-dots{display:flex;gap:5px;flex-shrink:0}
.prog-dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.1);transition:all .3s}
.prog-dot.done{background:var(--green)}.prog-dot.active{background:var(--py);transform:scale(1.3)}

/* MORE */
.more-section{padding:52px 24px;max-width:1400px;margin:0 auto}
.more-title{font-family:'Bebas Neue',cursive;font-size:1.9rem;letter-spacing:.04em;color:white;margin-bottom:20px}
.more-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.more-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:17px 19px;display:flex;flex-direction:column;gap:7px;transition:border-color .2s,transform .2s}
.more-card:hover{border-color:rgba(255,255,255,.15);transform:translateY(-3px)}
.more-icon{font-size:1.5rem}
.more-tag{font-family:'JetBrains Mono',monospace;font-size:.58rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.more-name{font-family:'Bebas Neue',cursive;font-size:1rem;letter-spacing:.04em;color:white}
.more-cta{font-size:.76rem;font-weight:700;margin-top:auto}
footer{background:var(--bg2);border-top:1px solid var(--border);padding:22px;text-align:center;color:var(--muted);font-size:.76rem}
footer a{color:var(--muted)}footer a:hover{color:var(--text)}

/* -- COLOUR EXPLORER (Step 1) -- */
.colour-explorer{margin:16px 0;background:var(--bg3);border:1px solid var(--border);border-radius:14px;padding:18px 20px}
.ce-title{font-family:'JetBrains Mono',monospace;font-size:.6rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--py-lt);margin-bottom:14px;display:flex;align-items:center;gap:7px}
.ce-title::before{content:'📝'}
.ce-main{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.ce-wheel{width:56px;height:56px;border-radius:50%;border:3px solid rgba(255,255,255,.15);cursor:pointer;padding:0;background:none;transition:border-color .2s;flex-shrink:0}
.ce-wheel:hover{border-color:rgba(255,255,255,.4)}
.ce-preview{flex:1;min-width:160px;border-radius:10px;height:56px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.1);transition:background .2s;position:relative;overflow:hidden}
.ce-preview-label{font-family:'JetBrains Mono',monospace;font-size:.72rem;font-weight:700;color:rgba(255,255,255,.6);letter-spacing:.05em}
.ce-hex-row{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.ce-hex-display{font-family:'JetBrains Mono',monospace;font-size:1.3rem;font-weight:700;color:white;letter-spacing:.08em;flex:1;background:rgba(0,0,0,.3);border-radius:8px;padding:8px 14px;border:1px solid rgba(255,255,255,.1)}
.ce-copy-btn{background:rgba(247,201,72,.15);color:var(--py-lt);border:1px solid rgba(247,201,72,.25);border-radius:8px;padding:8px 14px;font-family:'JetBrains Mono',monospace;font-size:.7rem;font-weight:700;cursor:pointer;transition:background .15s,transform .1s;white-space:nowrap}
.ce-copy-btn:hover{background:rgba(247,201,72,.28)}
.ce-copy-btn:active{transform:scale(.96)}
.ce-copy-btn.copied{background:rgba(61,220,132,.2);color:var(--green-lt);border-color:rgba(61,220,132,.3)}
.ce-swatches{display:flex;gap:8px;flex-wrap:wrap}
.ce-swatch{width:36px;height:36px;border-radius:8px;cursor:pointer;border:2px solid transparent;transition:transform .15s,border-color .15s;position:relative;flex-shrink:0}
.ce-swatch:hover{transform:scale(1.15);border-color:rgba(255,255,255,.5)}
.ce-swatch.active{border-color:var(--py);transform:scale(1.1)}
.ce-swatch-label{position:absolute;bottom:-18px;left:50%;transform:translateX(-50%);font-family:'JetBrains Mono',monospace;font-size:.5rem;color:var(--muted);white-space:nowrap;opacity:0;transition:opacity .15s;pointer-events:none}
.ce-swatch:hover .ce-swatch-label{opacity:1}

/* -- MOBILE RESPONSIVE PATCH ---------------------------- */
@media(max-width:600px){
  /* Inputs: bigger touch targets */
  .blank{min-width:52px;padding:5px 8px;font-size:.8rem;}
  /* Code blocks: wrap long lines */
  .code-pre{font-size:.68rem;white-space:pre-wrap;word-break:break-word;padding:10px 12px;}
  /* Run button: full-width, larger */
  .run-btn{padding:15px;font-size:1.1rem;}
  /* Step nav buttons */
  .btn-prev,.btn-next{padding:12px 8px;font-size:.8rem;}
  /* Step body padding */
  /* Tab buttons: scrollable row stays usable */
  .tab-btn{padding:10px 10px;font-size:.58rem;}
  /* Hero: hide stat panel that overflows */
  .hero-preview{display:none;}
  /* Canvas: scale to viewport */
  canvas{max-width:100%;height:auto;}
  .canvas-wrap{padding:8px;}
  /* Hint text */
  .game-hint{font-size:.5rem;padding:6px 12px;}
  /* Section padding */
  .hero{padding:28px 16px 22px;}
  /* Boxes */
  .box{font-size:.78rem;padding:9px 11px;}
  /* Step title */
}
@media(max-width:400px){
  .blank{min-width:42px;font-size:.75rem;}
  .code-pre{font-size:.62rem;}
  .tab-btn{padding:8px 7px;font-size:.52rem;}
}
/* ------------------------------------------------------- */



/* -- CODE CHALLENGE -- */




/* -- MOBILE D-PAD ------------------------------------------- */
.mob-dpad-wrap{
  display:none;justify-content:center;align-items:center;
  gap:10px;padding:10px 12px 14px;
  border-top:1px solid var(--border);
  background:rgba(0,0,0,.28);flex-shrink:0;
}
@media(pointer: coarse){.mob-dpad-wrap{display:flex;}}
.mob-dpad{
  display:grid;
  grid-template-columns:50px 50px 50px;
  grid-template-rows:50px 50px 50px;
  gap:4px;
}
.mob-dpad-btn{
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15);
  border-radius:10px;font-size:1.15rem;
  cursor:pointer;user-select:none;-webkit-user-select:none;
  touch-action:none;
  transition:background .1s,transform .1s;
}
.mob-dpad-btn:active,.mob-dpad-btn.pressed{
  background:rgba(255,255,255,.22);transform:scale(.9);
}
.mob-dpad-blank{background:transparent;border:none;}
.mob-dpad-fire{
  width:50px;height:50px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;cursor:pointer;user-select:none;
  touch-action:none;
  transition:background .1s,transform .1s;
}
.mob-dpad-fire:active,.mob-dpad-fire.pressed{transform:scale(.9);}
.mob-dpad-hint{
  font-family:'JetBrains Mono',monospace;
  font-size:.46rem;color:var(--muted);
  text-align:center;line-height:1.7;
  letter-spacing:.03em;max-width:70px;
}
/* ----------------------------------------------------------- */
.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}
.reveal{opacity:1!important;transform:none!important}