body{font-family:'Nunito',sans-serif;background:#0a0b10;color:#e8eaf2;min-height:100vh}


/* -- HERO -- */
.hero{background:linear-gradient(160deg,#fff8f0 60%,#fff0f5 100%);border-bottom:1px solid #e8e8e4;overflow:hidden;position:relative}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle at 80% 50%,rgba(230,57,70,.06) 0%,transparent 60%),radial-gradient(circle at 20% 80%,rgba(69,123,157,.06) 0%,transparent 50%)}
.hero-eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#e63946;border:1.5px solid #fbb;border-radius:999px;padding:4px 14px;margin-bottom:8px;background:#fff5f5}
.series-label{display:block;font-family:'Fredoka One',cursive;font-size:.85rem;color:#e63946;letter-spacing:.05em;margin-bottom:4px;opacity:.8}
.hero h1{font-family:'Fredoka One',cursive;font-size:clamp(2.2rem,5.5vw,3.4rem);line-height:1.0;color:#1a1a1a;margin-bottom:6px}
.hero h1 .accent{color:#e63946}
.hero h1 .subtitle-h1{display:block;font-size:clamp(1.1rem,2.5vw,1.5rem);color:#555;font-family:'Nunito',sans-serif;font-weight:900;margin-top:4px}
.hero p.lead{font-size:1rem;color:#555;font-weight:600;line-height:1.6;max-width:520px;margin-bottom:20px}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:.8rem;font-weight:700;border:1.5px solid #ddd;border-radius:999px;padding:5px 14px;color:#333;background:#fafafa}
.hero-img{width:170px;height:170px;background:linear-gradient(135deg,#fff3cd,#ffe8a1);border-radius:24px;display:flex;align-items:center;justify-content:center;font-size:5.5rem;flex-shrink:0;box-shadow:0 6px 30px rgba(230,57,70,.15);border:2.5px solid #fde68a}

/* -- TABS -- */
.tabs{background:#fff;border-bottom:2px solid #e5e5e5;margin-bottom:0}
.tabs-inner{max-width:1100px;margin:0 auto;padding:0 24px;display:flex;gap:4px}
.tab-btn{font-size:.9rem;font-weight:800;padding:14px 20px;border:none;background:none;cursor:pointer;color:#888;border-bottom:3px solid transparent;margin-bottom:-2px;transition:color .15s,border-color .15s;font-family:inherit}
.tab-btn.active{color:#e63946;border-bottom-color:#e63946}
.tab-pane{display:none}
.tab-pane.active{display:block}

/* -- MAIN LAYOUT -- */
.main{max-width:1100px;margin:0 auto;padding:32px 24px 60px}

.progress-bar{background:#fff;border:1.5px solid #f5c5c5;border-radius:14px;padding:18px 22px;margin-bottom:28px;box-shadow:0 2px 12px rgba(230,57,70,.06)}
.dot{width:36px;height:36px;border-radius:50%;border:2px solid #ddd;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:900;color:#bbb;cursor:pointer;transition:all .2s;background:#fff;flex-shrink:0}
.dot.done{background:#22c55e;border-color:#22c55e;color:#fff}
.dot.current{background:#fff;border-color:#e63946;color:#e63946;box-shadow:0 0 0 3px rgba(230,57,70,.15)}
.dot.locked{cursor:default}

.step-card.current{border-color:#e63946;box-shadow:0 4px 24px rgba(230,57,70,.1)}
.step-card.done{border-color:#d1fae5}

.step-header{display:flex;align-items:center;gap:14px;padding:18px 22px;cursor:pointer}
.step-card.current .step-num{border-color:#e63946;color:#e63946;background:#fff5f5}
.step-card.done .step-num{border-color:#22c55e;color:#22c55e;background:#f0fdf4}
.step-icon-badge{font-size:1.6rem}
.step-tag{font-size:.65rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;border-radius:5px;padding:2px 8px;margin-bottom:3px;display:inline-block}
.tag-new{background:#fef3c7;color:#b45309}
.tag-current{background:#fee2e2;color:#e63946}
.tag-locked{background:#f3f4f6;color:#9ca3af}
.tag-done{background:#dcfce7;color:#166534}
.step-subtitle{font-size:.82rem;color:#888;font-weight:600;margin-top:2px}
.step-card.current .step-status{color:#e63946}

/* -- STEP BODY -- */

.goal-box{background:#fffbf0;border:1.5px solid #fde68a;border-radius:10px;padding:14px 16px;margin:16px 0;display:flex;gap:10px;align-items:flex-start}
.goal-box .goal-icon{font-size:1.4rem;flex-shrink:0}
.goal-box strong{color:#b45309;font-weight:800;display:block;font-size:.85rem;margin-bottom:2px}
.goal-box p{font-size:.88rem;color:#555;font-weight:600;line-height:1.5}

.callout.child{background:#f0fdf4;border:1px solid #bbf7d0;color:#14532d}
.callout.tryit{background:#fff0f5;border:1.5px dashed #fbcfe8;color:#831843}

.what-to-do{margin:16px 0 0}
.what-to-do h4{font-size:.9rem;font-weight:900;color:#e63946;margin-bottom:10px;font-style:italic}
.steps-list li .sn{width:22px;height:22px;border-radius:50%;background:#e63946;color:#fff;font-size:.72rem;font-weight:900;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}
@media(max-width:600px){.two-col{grid-template-columns:1fr}}
.col-box{background:#fafafa;border:1px solid #eee;border-radius:10px;padding:14px}
.col-box h4{font-size:.8rem;font-weight:800;margin-bottom:6px;display:flex;align-items:center;gap:5px}
.col-box.child h4{color:#166534}
.col-box.parent h4{color:#5b21b6}
.col-box p,.col-box li{font-size:.85rem;font-weight:600;color:#444;line-height:1.6}

/* CODE */
.code-block{background:#1a1a2e;border-radius:12px;padding:16px 18px;margin:12px 0;font-family:'Courier New',monospace;font-size:.8rem;line-height:1.9;color:#e0e6ff;overflow-x:auto;border:1.5px solid #2d2d4e}
.code-block .cm{color:#6b7480}
.code-block .kw{color:#ff79c6}
.code-block .fn{color:#8be9fd}
.code-block .st{color:#f1fa8c}
.code-block .nu{color:#bd93f9}
.code-block .va{color:#50fa7b}

/* DONE BUTTON */
.done-btn{display:block;width:100%;margin-top:18px;padding:15px;background:#fff;border:2.5px solid #22c55e;border-radius:12px;font-family:'Fredoka One',cursive;font-size:1.05rem;font-weight:400;color:#166534;cursor:pointer;transition:background .15s,color .15s,transform .1s;text-align:center;letter-spacing:.02em}
.done-btn:hover{background:#f0fdf4;transform:translateY(-1px)}

/* --------------------------------------------
   INTERACTIVE BOOT.DEV-STYLE SYSTEMS
   -------------------------------------------- */
  :root {
  --jvi-gold:#f59e0b;--jvi-gold2:#fbbf24;--jvi-green:#16a34a;--jvi-red:#e63946;
  --jvi-blue:#2563eb;--jvi-purple:#7c3aed;--jvi-pink:#db2777;--jvi-teal:#0d9488;
  --jvi-ink:#e8eaf2;--jvi-mute:rgba(255,255,255,.45);
}


/* -- INTERACTIVE STEP STATES (layer onto existing .step-card) -- */
.step-card .step-body.collapsed{display:none}
.step-status.ss-todo{color:#aaa}
.step-status.ss-active{color:#e63946}
.step-status.ss-done{color:#16a34a}

/* shared challenge panel base (dark panels pop on the light page) */
.quiz-gate,.code-challenge,.concept-fill,.tf-round,.order-challenge,.predict-challenge{border-radius:16px;padding:22px 20px;margin-top:18px;color:var(--jvi-ink)}
.quiz-header,.cc-header,.cf-header,.tf-header,.oc-header,.pc-header{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.quiz-icon,.cc-icon,.cf-icon,.tf-icon,.oc-icon,.pc-icon{font-size:1.45rem;line-height:1}
.quiz-title,.cc-title,.cf-title,.tf-title,.oc-title,.pc-title{font-family:'Fredoka One',cursive;font-size:1.05rem;color:#fff}








/* -- ABOUT -- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:4px}
@media(max-width:600px){.about-grid{grid-template-columns:1fr}}
.about-card{background:#fff;border:1.5px solid #e8e8e4;border-radius:16px;padding:20px}
.about-card h3{font-family:'Fredoka One',cursive;font-size:1.1rem;color:#e63946;margin-bottom:8px;display:flex;align-items:center;gap:6px}
.about-card p,.about-card li{font-size:.88rem;font-weight:600;color:#444;line-height:1.7}
.about-card ul{margin-left:16px}

/* FOOTER */
.footer-brand{display:flex;flex-direction:column;gap:6px;}
.footer-socials{display:flex;gap:24px;justify-content:center;}
.footer-socials a{font-size:0.82rem;font-weight:700;color:rgba(240,234,214,0.65);transition:color 0.15s;text-decoration:none;}
.footer-socials a:hover{color:#F0EAD6;}

@media(max-width:680px){
  .hero-inner{grid-template-columns:1fr}
  .hero-img{display:none}
}
.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}
/* mobile-nav cascade fix */
.reveal{opacity:1!important;transform:none!important}