/* -- JVDS Site Nav -- */

:root{
  --bg:#0d0f14;--bg2:#13161e;--bg3:#1a1e2a;
  --border:rgba(255,255,255,.08);
  --text:#dde4f0;--muted:rgba(221,228,240,.45);
  --gml:#00c853;--gml-lt:#69f0ae;--gml-dk:#009624;
  --green:#3ddc84;--green-lt:#6eeaaa;
  --red:#e8312b;--orange:#f97316;--purple:#9b6bff;
  --blue:#4b8bbe;--teal:#70A3A7;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Nunito',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}
a{text-decoration:none;color:inherit}

.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(0,200,83,.07) 1px,transparent 1px);background-size:28px 28px;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: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(--gml-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 .gml{color:var(--gml)}
.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.g{border-color:rgba(0,200,83,.3);color:var(--gml-lt);background:rgba(0,200,83,.07)}
.hero-cta{background:var(--gml);color:#fff;font-family:'Bebas Neue',cursive;font-size:1.05rem;letter-spacing:.1em;padding:11px 26px;border-radius:10px;box-shadow:0 4px 0 var(--gml-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:190px}
.hero-preview-title{font-family:'JetBrains Mono',monospace;font-size:.58rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gml-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(--gml-lt)}

.main-layout{display:grid;grid-template-columns:1fr 420px;max-width:1400px;margin:0 auto;min-height:calc(100vh - 60px)}
@media(max-width:960px){.main-layout{grid-template-columns:1fr}.game-panel{position:relative;min-height:460px}}

.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 10px;font-family:'JetBrains Mono',monospace;font-size:.5rem;font-weight:700;letter-spacing:.03em;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(--gml-lt);border-bottom-color:var(--gml)}
.tab-btn.done::before{content:"? ";color:var(--green-lt)}

.step-body{padding:26px 30px;overflow-y:auto;max-height:calc(100vh - 120px)}
@media(max-width:960px){.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(--gml-lt);margin-bottom:5px}
.step-title{font-family:'Bebas Neue',cursive;font-size:1.85rem;letter-spacing:.04em;color:white;margin-bottom:9px;line-height:1}
.step-intro{font-size:.88rem;color:var(--muted);line-height:1.75;margin-bottom:18px}
.step-intro strong{color:var(--text);font-weight:700}

.code-area{margin:14px 0}
.code-area-label{display:flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:.6rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gml-lt);margin-bottom:6px}
.live-badge{background:rgba(61,220,132,.12);border:1px solid rgba(61,220,132,.25);color:var(--green-lt);font-size:.52rem;padding:2px 7px;border-radius:4px;letter-spacing:.06em}
.code-editor{background:#020617;border-radius:12px;border:1px solid rgba(0,200,83,.15);overflow:hidden}
.code-editor-header{padding:8px 14px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.015)}
.dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.code-fname{font-family:'JetBrains Mono',monospace;font-size:.6rem;color:var(--muted);margin-left:4px}
.code-editor textarea{width:100%;min-height:140px;background:transparent;border:none;color:var(--gml-lt);font-family:'JetBrains Mono',monospace;font-size:.78rem;line-height:1.8;padding:14px 16px;resize:vertical;outline:none}
.code-editor textarea::placeholder{color:rgba(0,200,83,.25)}

.hint-block{background:#020617;border:1px solid var(--border);border-radius:10px;padding:12px 16px;margin:10px 0;font-family:'JetBrains Mono',monospace;font-size:.72rem;line-height:1.7;color:rgba(255,255,255,.4);white-space:pre-wrap}
.hint-block .hl{color:var(--gml-lt);font-weight:700}
.hint-block .cm{color:rgba(100,130,160,.5);font-style:italic}

.box{border-radius:10px;padding:12px 15px;margin:12px 0;font-size:.82rem;line-height:1.7}
.box strong{font-weight:800}
.box-concept{background:rgba(0,200,83,.06);border:1px solid rgba(0,200,83,.15);color:var(--gml-lt)}
.box-tip{background:rgba(247,195,22,.06);border:1px solid rgba(247,195,22,.15);color:#fada7a}
.box-do{background:rgba(61,220,132,.06);border:1px solid rgba(61,220,132,.15);color:var(--green-lt)}
.box-gml{background:rgba(155,107,255,.06);border:1px solid rgba(155,107,255,.15);color:#c9b3ff}

.run-btn{width:100%;padding:14px;font-family:'Bebas Neue',cursive;font-size:1.2rem;letter-spacing:.12em;color:white;background:linear-gradient(135deg,var(--gml),var(--gml-dk));border:none;border-radius:10px;cursor:pointer;margin:14px 0 0;box-shadow:0 4px 0 rgba(0,150,36,.5);transition:transform .1s,filter .15s}
.run-btn:hover{filter:brightness(1.1);transform:translateY(-2px)}
.run-btn:active{transform:translateY(1px);box-shadow:0 1px 0 rgba(0,150,36,.5)}
.step-nav{display:flex;gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}
.btn-prev,.btn-next{flex:1;padding:10px;border:1px solid var(--border);background:var(--bg2);color:var(--text);font-family:'Nunito',sans-serif;font-size:.8rem;font-weight:700;border-radius:8px;cursor:pointer;transition:background .15s,border-color .15s}
.btn-prev:hover,.btn-next:hover{background:var(--bg3);border-color:rgba(255,255,255,.15)}
.btn-prev:disabled,.btn-next:disabled{opacity:.25;cursor:default}
.btn-next{background:rgba(0,200,83,.12);border-color:rgba(0,200,83,.25);color:var(--gml-lt)}
.btn-next:hover{background:rgba(0,200,83,.2)}

.game-panel{position:sticky;top:60px;height:calc(100vh - 60px);display:flex;flex-direction:column;background:var(--bg2)}
.game-top{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.game-top-title{font-family:'Bebas Neue',cursive;font-size:1rem;letter-spacing:.08em;color:white}
.game-live{display:flex;align-items:center;gap:6px;font-family:'JetBrains Mono',monospace;font-size:.58rem;color:var(--green-lt);letter-spacing:.04em}
.live-dot{width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}
.canvas-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:12px;overflow:hidden}
canvas{border-radius:10px;border:1px solid var(--border);display:block;max-width:100%;max-height:100%}
.game-hint{padding:8px 16px;border-top:1px solid var(--border);font-family:'JetBrains Mono',monospace;font-size:.55rem;color:var(--muted);text-align:center;letter-spacing:.02em}
.output-bar{padding:8px 16px;border-top:1px solid var(--border);font-family:'JetBrains Mono',monospace;font-size:.65rem;min-height:32px;transition:color .3s}
.output-bar.ok{color:var(--gml-lt)}.output-bar.err{color:var(--red)}

.progress-strip{max-width:1400px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;gap:14px;border-top:1px solid var(--border)}
.prog-label{font-family:'JetBrains Mono',monospace;font-size:.6rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.prog-track{flex:1;height:5px;background:var(--bg3);border-radius:4px;overflow:hidden}
.prog-fill{height:100%;background:linear-gradient(90deg,var(--gml),var(--gml-lt));border-radius:4px;transition:width .4s ease}
.prog-dots{display:flex;gap:3px}
.prog-dot{width:6px;height:6px;border-radius:50%;background:var(--bg3);border:1px solid var(--border);transition:background .3s}
.prog-dot.active{background:var(--gml);border-color:var(--gml)}
.prog-dot.done{background:var(--green);border-color:var(--green)}

.more-section{max-width:1400px;margin:0 auto;padding:30px 24px}
.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)}

/* -- 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 */
  .step-body{padding:16px 12px;}
  /* 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 */
  .step-title{font-size:1.5rem;}
}
@media(max-width:400px){
  .blank{min-width:42px;font-size:.75rem;}
  .code-pre{font-size:.62rem;}
  .tab-btn{padding:8px 7px;font-size:.52rem;}
}
/* ------------------------------------------------------- */


/* -- 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(max-width:860px){.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}