/* -- Site footer -- */
.footer-socials{display:flex;gap:4px;flex-wrap:wrap;justify-content:center;}
.footer-socials a{font-size:0.82rem;font-weight:600;color:rgba(240,234,214,0.55);padding:4px 9px;border-radius:6px;text-decoration:none;transition:color 0.15s,background 0.15s;}
.footer-socials a:hover{color:#F0EAD6;background:rgba(255,255,255,0.07);}

  :root {
  --bg:#06070a;--bg2:#0b0c0f;--bg3:#101214;
  --border:rgba(255,255,255,.07);
  --text:#e8eaf0;--muted:rgba(232,234,240,.38);
  --ue:#e05a1e;--ue-lt:#f08050;--ue-dk:#a03808;
  --gold:#f5c842;--green:#4ade80;--red:#f87171;--purple:#a78bfa;--teal:#2dd4bf;--blue:#4a90d9;
  --fight:#c94040;--fight-lt:#e86060;--fight-dk:#8a2020;
}
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(6,7,10,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px}
.logo{font-family:'Bebas Neue',sans-serif;font-size:1.1rem;letter-spacing:.06em}
.hdr-right{display:flex;align-items:center;gap:10px}
.quick-btn{background:linear-gradient(135deg,var(--fight),#a02828);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:.85rem;letter-spacing:.08em;padding:7px 16px;border-radius:8px;border:none;cursor:pointer;box-shadow:0 3px 0 var(--fight-dk);transition:filter .15s,transform .1s}
.quick-btn:hover{filter:brightness(1.18);transform:translateY(-1px)}

/* HERO */
.hero{padding:32px 18px 24px;border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(rgba(201,64,64,.07) 1px,transparent 1px);background-size:26px 26px}
@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(--fight-lt);margin-bottom:7px}
.hero-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(2.4rem,7vw,4rem);line-height:.9;letter-spacing:.03em;color:#fff;margin-bottom:8px}
.hero-title .hl{color:var(--fight)}
.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.fire{border-color:rgba(201,64,64,.3);color:var(--fight-lt);background:rgba(201,64,64,.07)}
/* fighter card */
.f-card{background:rgba(255,255,255,.03);border:1px solid rgba(201,64,64,.22);border-radius:12px;padding:13px 16px;min-width:190px}
.f-card-title{font-family:'JetBrains Mono',monospace;font-size:.54rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--fight-lt);margin-bottom:8px}
.f-name{font-family:'Bebas Neue',sans-serif;font-size:1.2rem;letter-spacing:.05em;color:#fff;margin-bottom:5px}
.f-stat{display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.04);font-size:.72rem}
.f-stat:last-child{border:none}
.f-stat-l{color:var(--muted)}
.f-stat-r{font-family:'JetBrains Mono',monospace;color:var(--fight-lt);font-size:.68rem}

/* MAIN LAYOUT */
.layout{display:grid;grid-template-columns:1fr 420px;max-width:1440px;margin:0 auto;min-height:calc(100vh - 52px)}
@media(max-width:1080px){.layout{grid-template-columns:1fr}}
.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 8px;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(--fight-lt);border-bottom-color:var(--fight)}
.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(--fight-lt);margin-bottom:3px}
.step-intro{font-size:.83rem;color:var(--muted);line-height:1.73;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}
.box-c{background:rgba(201,64,64,.05);border:1px solid rgba(201,64,64,.16);color:rgba(232,234,240,.7)}
.box-c::before{content:"💡"}
.box-t{background:rgba(74,222,128,.05);border:1px solid rgba(74,222,128,.14);color:rgba(232,234,240,.7)}
.box-t::before{content:"✅"}
.box-u{background:rgba(74,144,217,.06);border:1px solid rgba(74,144,217,.18);color:rgba(232,234,240,.76)}
.box-u::before{content:"🔧"}
.box-f{background:rgba(245,200,66,.05);border:1px solid rgba(245,200,66,.2);color:rgba(232,234,240,.8)}
.box-f::before{content:"🥊"}
.box-ai{background:rgba(167,139,250,.06);border:1px solid rgba(167,139,250,.2);color:rgba(232,234,240,.8)}
.box-ai::before{content:"🤖"}

/* BLUEPRINT CANVAS */
.bp-outer{margin:10px 0;border-radius:10px;overflow:hidden;border:2px solid rgba(74,144,217,.17);position:relative}
.bp-outer.shake{animation:bpshk .35s ease}
@keyframes bpshk{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
.bp-canvas-wrap canvas{display:block;width:100%;background:#11111f;cursor:crosshair}
.bp-hint{font-family:'JetBrains Mono',monospace;font-size:.54rem;letter-spacing:.05em;color:rgba(74,144,217,.48);padding:4px 11px;background:rgba(74,144,217,.04);border-top:1px solid rgba(74,144,217,.08)}
.bp-valinput{position:absolute;z-index:50;background:#1a1a2e;border:2px solid #4a90d9;border-radius:8px;padding:8px 10px;display:flex;flex-direction:column;gap:6px;box-shadow:0 4px 20px rgba(0,0,0,.7);min-width:180px}
.bp-valinput label{font-family:'JetBrains Mono',monospace;font-size:.65rem;color:rgba(74,144,217,.8);letter-spacing:.05em}
.bp-valinput input{background:#0d0d1a;border:1px solid rgba(74,144,217,.4);border-radius:5px;color:#e8eaf0;font-family:'JetBrains Mono',monospace;font-size:.85rem;padding:5px 8px;outline:none;width:100%}
.bp-valinput input:focus{border-color:#4a90d9}
.bp-valinput-btns{display:flex;gap:6px}
.bp-valinput-btns button{flex:1;font-family:'JetBrains Mono',monospace;font-size:.72rem;font-weight:700;padding:5px;border-radius:5px;border:none;cursor:pointer}
.bp-valinput-ok{background:#4a90d9;color:#fff}.bp-valinput-ok:hover{background:#5ba0e9}
.bp-valinput-cancel{background:rgba(255,255,255,.08);color:rgba(232,234,240,.6)}.bp-valinput-cancel:hover{background:rgba(255,255,255,.14)}
.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)}

/* MODE PICKER */
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:9px 0}
.mode-card{background:rgba(255,255,255,.03);border:2px solid rgba(255,255,255,.07);border-radius:9px;padding:12px;cursor:pointer;transition:all .2s;text-align:center}
.mode-card:hover{border-color:rgba(201,64,64,.45);transform:translateY(-2px)}
.mode-card.sel{border-color:var(--fight);background:rgba(201,64,64,.09)}
.mode-icon{font-size:1.6rem;margin-bottom:4px}
.mode-name{font-family:'Bebas Neue',sans-serif;font-size:1rem;letter-spacing:.04em;color:#fff}
.mode-desc{font-size:.62rem;color:var(--muted);margin-top:2px;line-height:1.4}

/* FIGHTER NAME INPUT */
.fname-wrap{background:rgba(201,64,64,.05);border:1px solid rgba(201,64,64,.18);border-radius:8px;padding:9px 12px;margin:9px 0}
.fname-lbl{font-family:'JetBrains Mono',monospace;font-size:.54rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--fight-lt);margin-bottom:5px}
.fname-input{width:100%;background:rgba(0,0,0,.4);border:1px solid rgba(201,64,64,.25);border-radius:5px;padding:6px 9px;font-family:'Bebas Neue',sans-serif;font-size:1.1rem;letter-spacing:.06em;color:var(--fight-lt);outline:none}
.fname-input:focus{border-color:var(--fight);box-shadow:0 0 0 2px rgba(201,64,64,.12)}

/* BUTTONS */
.run-btn{width:100%;margin-top:9px;padding:11px;background:var(--fight);color:#fff;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(--fight-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(1.15);transform:translateY(-1px)}
.run-btn:disabled{opacity:.32;cursor:not-allowed;transform:none;filter:none}
.step-nav{display:flex;gap:8px;margin-top:11px;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(201,64,64,.11);color:var(--fight-lt);border:1px solid rgba(201,64,64,.2)}
.btn-n:hover:not(:disabled){background:rgba(201,64,64,.19)}
.btn-p:disabled,.btn-n:disabled{opacity:.28;cursor:default}

/* GAME COLUMN */
.game-col{background:var(--bg);display:flex;flex-direction:column;position:sticky;top:52px;height:calc(100vh - 52px)}
@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(--fight-lt)}
.live-dot{width:5px;height:5px;border-radius:50%;background:var(--fight);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:7px;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 7px;border-right:1px solid var(--border);text-align:center}
.hb:last-child{border-right:none}
.hv{font-family:'Bebas Neue',sans-serif;font-size:1.1rem;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(--fight-lt);flex-shrink:0}

/* FULLSCREEN */
.fs-overlay{position:fixed;inset:0;z-index:500;background:#06070a;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(6,7,10,.94);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-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(--fight-lt);background:rgba(6,7,10,.9);border-top:1px solid rgba(255,255,255,.05)}

/* PROGRESS */
.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(--fight-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(--fight),var(--gold));border-radius:999px;transition:width .4s ease}
.prog-dots{display:flex;gap:3px;flex-wrap:wrap;max-width:190px;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(--fight);transform:scale(1.35)}
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)}footer a:hover{color:var(--text)}

/* -------- BOOT.DEV-STYLE INTERACTIVE LEARNING SYSTEM -------- */
/* theme tokens reused by the interactive components */
  :root {
  --accent:#e05a1e;--accent2:#f08050;--green:#4ade80;--teal:#2dd4bf;
  --pink:#ff70b8;--purple:#a78bfa;--blue:#4a90d9;--red:#f87171;--yellow:#f5c842;
  --card:#101214;--asphalt:#1b1f24;--xp-gold:#f5c842;--xp-glow:rgba(245,200,66,.3);
}
.uf-hero{position:relative;overflow:hidden;padding:40px 20px 36px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#1a0606 0%,#06070a 100%)}
.uf-hero-inner{max-width:1100px;margin:0 auto;position:relative;z-index:1}
.uf-h1{font-family:'Fredoka',cursive;font-size:clamp(2rem,5vw,3.4rem);line-height:1.1;color:#fff;margin-bottom:10px}
.uf-h1 em{color:var(--accent2);font-style:normal}
.uf-hero-sub{font-size:1rem;color:var(--muted);max-width:560px;line-height:1.6;margin-bottom:20px}
.hero-pills2{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.pill2{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;font-weight:700;padding:5px 12px;border-radius:12px;border:1px solid}
.pill2.p-age{color:var(--pink);border-color:rgba(255,112,184,.3);background:rgba(255,112,184,.08)}
.pill2.p-time{color:var(--teal);border-color:rgba(45,212,191,.3);background:rgba(45,212,191,.08)}
.pill2.p-tool{color:var(--accent2);border-color:rgba(224,90,30,.3);background:rgba(224,90,30,.08)}
.pill2.p-free{color:var(--yellow);border-color:rgba(245,200,66,.3);background:rgba(245,200,66,.08)}
.skill-tag span{font-size:.9em}
.print-btn{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:700;padding:10px 18px;border-radius:10px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:rgba(232,234,240,.6);cursor:pointer;text-decoration:none;transition:background .15s,color .15s}
.print-btn:hover{background:rgba(255,255,255,.09);color:var(--text)}



.sn-blue{background:rgba(74,144,217,.15);color:var(--blue);border:2px solid rgba(74,144,217,.25)}
.step-title2{font-family:'Fredoka',cursive;font-size:1.25rem;color:#fff;line-height:1.2}
.step-body2{padding:0 24px 24px;display:none}
.wk h3{font-family:'Fredoka',cursive;font-size:1.05rem;color:#fff;margin:18px 0 8px}
.wk h3:first-child{margin-top:0}
.b-event{color:#a78bfa;font-weight:700}
.b-flow{color:#f5c842}
.b-func{color:#4a90d9}
.b-val{color:#4ade80}
.b-comment{color:rgba(232,234,240,.4);font-style:italic}







.gallery-prompt{margin-top:20px;padding:18px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;text-align:left}
.gallery-prompt-label{font-family:'Fredoka',cursive;font-size:1rem;color:#fff;margin-bottom:10px}
.gallery-input-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.gallery-input{flex:1;min-width:200px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:9px 12px;font-size:.85rem;color:var(--text);outline:none}
.gallery-input:focus{border-color:rgba(224,90,30,.5)}
.gallery-copy-btn{background:linear-gradient(135deg,#e05a1e,#a03808);color:#fff;font-family:'Fredoka',cursive;font-size:.9rem;padding:9px 18px;border-radius:8px;border:none;cursor:pointer;white-space:nowrap;box-shadow:0 2px 0 #6e2705;transition:filter .15s}
.gallery-copy-btn:hover{filter:brightness(1.1)}
.gallery-hint{font-size:.78rem;color:var(--muted);line-height:1.5}
@media(max-width:700px){.uf-h1{font-size:1.8rem}.step-header{padding:14px 16px 12px}.step-body2{padding:0 16px 18px}}
@media print{.site-header,.xp-wrap,.progress-wrap,.step-card.locked,.quiz-gate,.code-challenge,.concept-fill,.tf-round,.order-challenge,.predict-challenge,.finish-banner,.hero-btns,.print-btn,.skills-strip{display:none!important}.uf-hero{padding:16px 0 10px;border:none}.step-card{border:1px solid #ccc;break-inside:avoid;margin-bottom:12px}.step-card.completed .step-body2,.step-card.active-step .step-body2{display:block!important}.step-body2{display:block!important}body{background:#fff;color:#111}.uf-h1,.wk h3,.step-title2,.finish-title{color:#111}}

/* -- Site footer -- */
.footer-socials{display:flex;gap:4px;flex-wrap:wrap;justify-content:center;}
.footer-socials a{font-size:0.82rem;font-weight:600;color:rgba(240,234,214,0.55);padding:4px 9px;border-radius:6px;text-decoration:none;transition:color 0.15s,background 0.15s;}
.footer-socials a:hover{color:#F0EAD6;background:rgba(255,255,255,0.07);}

  :root {
  --bg:#06070a;--bg2:#0b0c0f;--bg3:#101214;
  --border:rgba(255,255,255,.07);
  --text:#e8eaf0;--muted:rgba(232,234,240,.38);
  --ue:#e05a1e;--ue-lt:#f08050;--ue-dk:#a03808;
  --gold:#f5c842;--green:#4ade80;--red:#f87171;--purple:#a78bfa;--teal:#2dd4bf;--blue:#4a90d9;
  --fight:#c94040;--fight-lt:#e86060;--fight-dk:#8a2020;
}
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(6,7,10,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px}
.logo{font-family:'Bebas Neue',sans-serif;font-size:1.1rem;letter-spacing:.06em}
.hdr-right{display:flex;align-items:center;gap:10px}
.quick-btn{background:linear-gradient(135deg,var(--fight),#a02828);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:.85rem;letter-spacing:.08em;padding:7px 16px;border-radius:8px;border:none;cursor:pointer;box-shadow:0 3px 0 var(--fight-dk);transition:filter .15s,transform .1s}
.quick-btn:hover{filter:brightness(1.18);transform:translateY(-1px)}

/* HERO */
.hero{padding:32px 18px 24px;border-bottom:1px solid var(--border);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(rgba(201,64,64,.07) 1px,transparent 1px);background-size:26px 26px}
@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(--fight-lt);margin-bottom:7px}
.hero-title{font-family:'Bebas Neue',sans-serif;font-size:clamp(2.4rem,7vw,4rem);line-height:.9;letter-spacing:.03em;color:#fff;margin-bottom:8px}
.hero-title .hl{color:var(--fight)}
.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.fire{border-color:rgba(201,64,64,.3);color:var(--fight-lt);background:rgba(201,64,64,.07)}
/* fighter card */
.f-card{background:rgba(255,255,255,.03);border:1px solid rgba(201,64,64,.22);border-radius:12px;padding:13px 16px;min-width:190px}
.f-card-title{font-family:'JetBrains Mono',monospace;font-size:.54rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--fight-lt);margin-bottom:8px}
.f-name{font-family:'Bebas Neue',sans-serif;font-size:1.2rem;letter-spacing:.05em;color:#fff;margin-bottom:5px}
.f-stat{display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.04);font-size:.72rem}
.f-stat:last-child{border:none}
.f-stat-l{color:var(--muted)}
.f-stat-r{font-family:'JetBrains Mono',monospace;color:var(--fight-lt);font-size:.68rem}

/* MAIN LAYOUT */
.layout{display:grid;grid-template-columns:1fr 420px;max-width:1440px;margin:0 auto;min-height:calc(100vh - 52px)}
@media(max-width:1080px){.layout{grid-template-columns:1fr}}
.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 8px;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(--fight-lt);border-bottom-color:var(--fight)}
.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(--fight-lt);margin-bottom:3px}
.step-intro{font-size:.83rem;color:var(--muted);line-height:1.73;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}
.box-c{background:rgba(201,64,64,.05);border:1px solid rgba(201,64,64,.16);color:rgba(232,234,240,.7)}
.box-c::before{content:"💡"}
.box-t{background:rgba(74,222,128,.05);border:1px solid rgba(74,222,128,.14);color:rgba(232,234,240,.7)}
.box-t::before{content:"✅"}
.box-u{background:rgba(74,144,217,.06);border:1px solid rgba(74,144,217,.18);color:rgba(232,234,240,.76)}
.box-u::before{content:"🔧"}
.box-f{background:rgba(245,200,66,.05);border:1px solid rgba(245,200,66,.2);color:rgba(232,234,240,.8)}
.box-f::before{content:"🥊"}
.box-ai{background:rgba(167,139,250,.06);border:1px solid rgba(167,139,250,.2);color:rgba(232,234,240,.8)}
.box-ai::before{content:"🤖"}

/* BLUEPRINT CANVAS */
.bp-outer{margin:10px 0;border-radius:10px;overflow:hidden;border:2px solid rgba(74,144,217,.17);position:relative}
.bp-outer.shake{animation:bpshk .35s ease}
@keyframes bpshk{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
.bp-canvas-wrap canvas{display:block;width:100%;background:#11111f;cursor:crosshair}
.bp-hint{font-family:'JetBrains Mono',monospace;font-size:.54rem;letter-spacing:.05em;color:rgba(74,144,217,.48);padding:4px 11px;background:rgba(74,144,217,.04);border-top:1px solid rgba(74,144,217,.08)}
.bp-valinput{position:absolute;z-index:50;background:#1a1a2e;border:2px solid #4a90d9;border-radius:8px;padding:8px 10px;display:flex;flex-direction:column;gap:6px;box-shadow:0 4px 20px rgba(0,0,0,.7);min-width:180px}
.bp-valinput label{font-family:'JetBrains Mono',monospace;font-size:.65rem;color:rgba(74,144,217,.8);letter-spacing:.05em}
.bp-valinput input{background:#0d0d1a;border:1px solid rgba(74,144,217,.4);border-radius:5px;color:#e8eaf0;font-family:'JetBrains Mono',monospace;font-size:.85rem;padding:5px 8px;outline:none;width:100%}
.bp-valinput input:focus{border-color:#4a90d9}
.bp-valinput-btns{display:flex;gap:6px}
.bp-valinput-btns button{flex:1;font-family:'JetBrains Mono',monospace;font-size:.72rem;font-weight:700;padding:5px;border-radius:5px;border:none;cursor:pointer}
.bp-valinput-ok{background:#4a90d9;color:#fff}.bp-valinput-ok:hover{background:#5ba0e9}
.bp-valinput-cancel{background:rgba(255,255,255,.08);color:rgba(232,234,240,.6)}.bp-valinput-cancel:hover{background:rgba(255,255,255,.14)}
.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)}

/* MODE PICKER */
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:9px 0}
.mode-card{background:rgba(255,255,255,.03);border:2px solid rgba(255,255,255,.07);border-radius:9px;padding:12px;cursor:pointer;transition:all .2s;text-align:center}
.mode-card:hover{border-color:rgba(201,64,64,.45);transform:translateY(-2px)}
.mode-card.sel{border-color:var(--fight);background:rgba(201,64,64,.09)}
.mode-icon{font-size:1.6rem;margin-bottom:4px}
.mode-name{font-family:'Bebas Neue',sans-serif;font-size:1rem;letter-spacing:.04em;color:#fff}
.mode-desc{font-size:.62rem;color:var(--muted);margin-top:2px;line-height:1.4}

/* FIGHTER NAME INPUT */
.fname-wrap{background:rgba(201,64,64,.05);border:1px solid rgba(201,64,64,.18);border-radius:8px;padding:9px 12px;margin:9px 0}
.fname-lbl{font-family:'JetBrains Mono',monospace;font-size:.54rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--fight-lt);margin-bottom:5px}
.fname-input{width:100%;background:rgba(0,0,0,.4);border:1px solid rgba(201,64,64,.25);border-radius:5px;padding:6px 9px;font-family:'Bebas Neue',sans-serif;font-size:1.1rem;letter-spacing:.06em;color:var(--fight-lt);outline:none}
.fname-input:focus{border-color:var(--fight);box-shadow:0 0 0 2px rgba(201,64,64,.12)}

/* BUTTONS */
.run-btn{width:100%;margin-top:9px;padding:11px;background:var(--fight);color:#fff;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(--fight-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(1.15);transform:translateY(-1px)}
.run-btn:disabled{opacity:.32;cursor:not-allowed;transform:none;filter:none}
.step-nav{display:flex;gap:8px;margin-top:11px;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(201,64,64,.11);color:var(--fight-lt);border:1px solid rgba(201,64,64,.2)}
.btn-n:hover:not(:disabled){background:rgba(201,64,64,.19)}
.btn-p:disabled,.btn-n:disabled{opacity:.28;cursor:default}

/* GAME COLUMN */
.game-col{background:var(--bg);display:flex;flex-direction:column;position:sticky;top:52px;height:calc(100vh - 52px)}
@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(--fight-lt)}
.live-dot{width:5px;height:5px;border-radius:50%;background:var(--fight);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:7px;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 7px;border-right:1px solid var(--border);text-align:center}
.hb:last-child{border-right:none}
.hv{font-family:'Bebas Neue',sans-serif;font-size:1.1rem;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(--fight-lt);flex-shrink:0}

/* FULLSCREEN */
.fs-overlay{position:fixed;inset:0;z-index:500;background:#06070a;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(6,7,10,.94);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-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(--fight-lt);background:rgba(6,7,10,.9);border-top:1px solid rgba(255,255,255,.05)}

/* PROGRESS */
.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(--fight-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(--fight),var(--gold));border-radius:999px;transition:width .4s ease}
.prog-dots{display:flex;gap:3px;flex-wrap:wrap;max-width:190px;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(--fight);transform:scale(1.35)}
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)}footer a:hover{color:var(--text)}

/* -------- BOOT.DEV-STYLE INTERACTIVE LEARNING SYSTEM -------- */
/* theme tokens reused by the interactive components */
  :root {
  --accent:#e05a1e;--accent2:#f08050;--green:#4ade80;--teal:#2dd4bf;
  --pink:#ff70b8;--purple:#a78bfa;--blue:#4a90d9;--red:#f87171;--yellow:#f5c842;
  --card:#101214;--asphalt:#1b1f24;--xp-gold:#f5c842;--xp-glow:rgba(245,200,66,.3);
}
.uf-hero{position:relative;overflow:hidden;padding:40px 20px 36px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#1a0606 0%,#06070a 100%)}
.uf-hero-inner{max-width:1100px;margin:0 auto;position:relative;z-index:1}
.uf-h1{font-family:'Fredoka',cursive;font-size:clamp(2rem,5vw,3.4rem);line-height:1.1;color:#fff;margin-bottom:10px}
.uf-h1 em{color:var(--accent2);font-style:normal}
.uf-hero-sub{font-size:1rem;color:var(--muted);max-width:560px;line-height:1.6;margin-bottom:20px}
.hero-pills2{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.pill2{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;font-weight:700;padding:5px 12px;border-radius:12px;border:1px solid}
.pill2.p-age{color:var(--pink);border-color:rgba(255,112,184,.3);background:rgba(255,112,184,.08)}
.pill2.p-time{color:var(--teal);border-color:rgba(45,212,191,.3);background:rgba(45,212,191,.08)}
.pill2.p-tool{color:var(--accent2);border-color:rgba(224,90,30,.3);background:rgba(224,90,30,.08)}
.pill2.p-free{color:var(--yellow);border-color:rgba(245,200,66,.3);background:rgba(245,200,66,.08)}
.skill-tag span{font-size:.9em}
.print-btn{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:700;padding:10px 18px;border-radius:10px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:rgba(232,234,240,.6);cursor:pointer;text-decoration:none;transition:background .15s,color .15s}
.print-btn:hover{background:rgba(255,255,255,.09);color:var(--text)}



.sn-blue{background:rgba(74,144,217,.15);color:var(--blue);border:2px solid rgba(74,144,217,.25)}
.step-title2{font-family:'Fredoka',cursive;font-size:1.25rem;color:#fff;line-height:1.2}
.step-body2{padding:0 24px 24px;display:none}
.wk h3{font-family:'Fredoka',cursive;font-size:1.05rem;color:#fff;margin:18px 0 8px}
.wk h3:first-child{margin-top:0}
.b-event{color:#a78bfa;font-weight:700}
.b-flow{color:#f5c842}
.b-func{color:#4a90d9}
.b-val{color:#4ade80}
.b-comment{color:rgba(232,234,240,.4);font-style:italic}







.gallery-prompt{margin-top:20px;padding:18px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:14px;text-align:left}
.gallery-prompt-label{font-family:'Fredoka',cursive;font-size:1rem;color:#fff;margin-bottom:10px}
.gallery-input-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.gallery-input{flex:1;min-width:200px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:9px 12px;font-size:.85rem;color:var(--text);outline:none}
.gallery-input:focus{border-color:rgba(224,90,30,.5)}
.gallery-copy-btn{background:linear-gradient(135deg,#e05a1e,#a03808);color:#fff;font-family:'Fredoka',cursive;font-size:.9rem;padding:9px 18px;border-radius:8px;border:none;cursor:pointer;white-space:nowrap;box-shadow:0 2px 0 #6e2705;transition:filter .15s}
.gallery-copy-btn:hover{filter:brightness(1.1)}
.gallery-hint{font-size:.78rem;color:var(--muted);line-height:1.5}
@media(max-width:700px){.uf-h1{font-size:1.8rem}.step-header{padding:14px 16px 12px}.step-body2{padding:0 16px 18px}}
@media print{.site-header,.xp-wrap,.progress-wrap,.step-card.locked,.quiz-gate,.code-challenge,.concept-fill,.tf-round,.order-challenge,.predict-challenge,.finish-banner,.hero-btns,.print-btn,.skills-strip{display:none!important}.uf-hero{padding:16px 0 10px;border:none}.step-card{border:1px solid #ccc;break-inside:avoid;margin-bottom:12px}.step-card.completed .step-body2,.step-card.active-step .step-body2{display:block!important}.step-body2{display:block!important}body{background:#fff;color:#111}.uf-h1,.wk h3,.step-title2,.finish-title{color:#111}}
.reveal{opacity:1!important;transform:none!important}