/* ============================================================
   Kridora — Game Development with AI
   Arcade-modern: deep space navy + electric violet/cyan/amber
   ============================================================ */
:root{
  --bg:#0b0f1f; --bg2:#0e1326; --surface:#141a30; --surface2:#1a2240;
  --line:#26304f; --ink:#eef2ff; --body:#b9c2de; --muted:#7e89ad;
  --violet:#7c5cff; --violet-d:#6b46f0; --cyan:#28e0c5; --amber:#ffd34d; --pink:#ff5d8f;
  --grad: linear-gradient(135deg,#7c5cff,#28e0c5);
  --r:14px; --r-lg:22px; --maxw:1160px;
  --sans:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --display:'Fredoka','Inter',system-ui,sans-serif;
  --shadow:0 14px 40px -16px rgba(0,0,0,.6);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--body);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.12;font-family:var(--display);font-weight:700}
.kx-wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* Buttons */
.kx-btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-size:.95rem;font-family:var(--sans);
  padding:.7rem 1.25rem;border-radius:50px;border:1.5px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s;white-space:nowrap}
.kx-btn--primary{background:var(--grad);color:#0a0f1f}
.kx-btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px -10px var(--violet)}
.kx-btn--ghost{border-color:var(--line);color:var(--ink);background:transparent}
.kx-btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.kx-btn--soft{background:var(--surface2);color:var(--ink);border-color:var(--line);font-weight:600;font-size:.88rem;padding:.5rem .9rem}
.kx-btn--soft:hover{border-color:var(--violet)}
.kx-btn--lg{padding:.9rem 1.6rem;font-size:1.05rem}

/* Header */
.kx-header{position:sticky;top:0;z-index:50;background:rgba(11,15,31,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.kx-nav{max-width:var(--maxw);margin:0 auto;padding:0 22px;height:64px;display:flex;align-items:center;justify-content:space-between}
.kx-brand{display:flex;align-items:center;gap:.6rem}
.kx-logo{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:var(--grad);color:#0a0f1f;font-family:var(--display);font-weight:700;font-size:1.2rem;box-shadow:0 6px 18px -6px var(--violet)}
.kx-logo--sm{width:26px;height:26px;font-size:.9rem;border-radius:8px}
.kx-brand__name{font-family:var(--display);font-weight:700;font-size:1.3rem;color:var(--ink)}
.kx-links{display:flex;align-items:center;gap:1.4rem;list-style:none;margin:0;padding:0}
.kx-links a{font-weight:600;font-size:.95rem;color:var(--body)}
.kx-links a:hover,.kx-links a.on{color:var(--ink)}
.kx-cta{background:var(--grad);color:#0a0f1f!important;padding:.5rem 1.05rem;border-radius:50px;font-weight:700}
.kx-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.kx-burger span{width:24px;height:2px;background:var(--ink);border-radius:2px}

/* Hero */
.kx-hero{position:relative;overflow:hidden;padding:clamp(2.5rem,6vw,5rem) 0 clamp(2rem,4vw,3.5rem)}
.kx-hero::before{content:"";position:absolute;inset:-40% 50% auto -10%;height:130%;background:radial-gradient(closest-side,rgba(124,92,255,.30),transparent 70%);pointer-events:none}
.kx-hero::after{content:"";position:absolute;inset:auto -10% -50% 55%;height:120%;background:radial-gradient(closest-side,rgba(40,224,197,.22),transparent 70%);pointer-events:none}
.kx-hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(1.5rem,4vw,3rem);align-items:center;position:relative}
.kx-eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.04em;color:var(--cyan);background:rgba(40,224,197,.1);border:1px solid rgba(40,224,197,.25);padding:.35rem .8rem;border-radius:50px;margin:0 0 1.1rem}
.kx-hero__title{font-size:clamp(2.6rem,7vw,4.6rem);letter-spacing:-.02em;color:var(--ink)}
.kx-hero__title span{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.kx-hero__sub{font-size:1.1rem;max-width:56ch;margin:1rem 0 1.6rem}
.kx-hero__cta{display:flex;flex-wrap:wrap;gap:.7rem}
.kx-hero__stats{display:flex;flex-wrap:wrap;gap:1.6rem;list-style:none;margin:1.8rem 0 0;padding:0}
.kx-hero__stats b{display:block;font-family:var(--display);font-size:1.6rem;color:var(--ink)}
.kx-hero__stats span{font-size:.78rem;color:var(--muted)}
/* Hero art */
.kx-screen{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.kx-screen__bar{display:flex;gap:7px;padding:12px 14px;background:var(--surface2);border-bottom:1px solid var(--line)}
.kx-screen__bar i{width:11px;height:11px;border-radius:50%;background:#3a456b}
.kx-screen__bar i:first-child{background:var(--pink)}.kx-screen__bar i:nth-child(2){background:var(--amber)}.kx-screen__bar i:nth-child(3){background:var(--cyan)}
.kx-screen__code{margin:0;padding:16px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.86rem;color:#cdd6f4;line-height:1.7}
.kx-screen__code .c{color:var(--muted)}
.kx-screen__game{height:120px;background:radial-gradient(circle at 30% 40%,#1a2240,#0e1326);position:relative;border-top:1px solid var(--line)}
.kx-orb{position:absolute;top:50%;left:20%;width:34px;height:34px;border-radius:50%;background:var(--grad);box-shadow:0 0 24px var(--violet);animation:kxbounce 2.6s ease-in-out infinite}
@keyframes kxbounce{0%,100%{left:18%;top:30%}50%{left:74%;top:62%}}

/* Sections */
.kx-section{padding:clamp(3rem,7vw,5rem) 0}
.kx-section--alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.kx-sec-eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--violet);margin:0 0 .5rem}
.kx-sec-title{font-size:clamp(1.7rem,4vw,2.5rem);max-width:22ch}

/* Cards */
.kx-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.2rem;margin-top:2rem}
.kx-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.5rem;transition:transform .2s,border-color .2s}
.kx-card:hover{transform:translateY(-4px);border-color:var(--violet)}
.kx-card__ico{font-size:1.8rem}
.kx-card h3{font-size:1.15rem;margin:.6rem 0 .4rem}
.kx-card p{font-size:.93rem;margin:0}

/* AI progression */
.kx-ai{display:grid;gap:.8rem;margin-top:2rem}
.kx-ai__step{display:flex;gap:1rem;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:1rem 1.2rem}
.kx-ai__n{flex:none;width:34px;height:34px;border-radius:50%;background:var(--grad);color:#0a0f1f;font-family:var(--display);font-weight:700;display:grid;place-items:center}
.kx-ai__band{font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--cyan)}
.kx-ai__step b{display:block;font-family:var(--display);color:var(--ink);font-size:1.05rem}
.kx-ai__step p{margin:.15rem 0 0;font-size:.9rem}

/* Levels */
.kx-levels{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.1rem;margin-top:1.6rem}
.kx-level{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:1.3rem;display:block;transition:transform .2s,border-color .2s}
a.kx-level:hover{transform:translateY(-3px);border-color:var(--cyan)}
.kx-level__ico{font-size:1.6rem}
.kx-level__n{display:block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-top:.4rem}
.kx-level b,.kx-level h3{font-family:var(--display);color:var(--ink);font-size:1.15rem;margin:.1rem 0 .3rem}
.kx-level p{margin:0;font-size:.9rem}
.kx-level--full{padding:1.5rem}
.kx-level__top{display:flex;align-items:center;gap:.9rem}
.kx-level__top h3{margin:0}
.kx-badge{margin-left:auto;font-size:.68rem;font-weight:700;padding:.22rem .6rem;border-radius:50px;white-space:nowrap}
.kx-badge--building{background:rgba(255,211,77,.16);color:var(--amber)}
.kx-badge--live{background:rgba(40,224,197,.16);color:var(--cyan)}
.kx-badge--planned{background:rgba(126,137,173,.16);color:var(--muted)}
.kx-level__tag{margin:.7rem 0 .5rem;font-size:.95rem;color:var(--body)}
.kx-level__ai{font-size:.82rem;color:var(--cyan);background:rgba(40,224,197,.07);border:1px solid rgba(40,224,197,.18);border-radius:9px;padding:.4rem .7rem;margin-bottom:.9rem}
.kx-level__cols{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.kx-level__cols h4{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:0 0 .4rem;font-family:var(--sans)}
.kx-level__cols ul{margin:0;padding-left:1.05rem;font-size:.86rem;display:grid;gap:.25rem}
.kx-level__cols ul li::marker{color:var(--violet)}
.kx-proj li::marker{color:var(--amber)}
@media(max-width:520px){.kx-level__cols{grid-template-columns:1fr}}

/* Grades + formats */
.kx-grades{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:.8rem;margin-bottom:1.4rem}
.kx-grade{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:.9rem;text-align:center}
.kx-grade b{display:block;font-family:var(--display);color:var(--ink)}
.kx-grade span{display:block;font-size:.8rem;color:var(--muted)}
.kx-grade em{font-style:normal;font-size:.74rem;color:var(--cyan)}
.kx-formats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.kx-format{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--violet);border-radius:var(--r);padding:1.1rem}
.kx-format b{display:block;font-family:var(--display);font-size:1.2rem;color:var(--ink);margin-bottom:.3rem}
.kx-format span{display:block;font-size:.88rem;color:var(--body)}

/* Page head */
.kx-page-head{padding:clamp(2rem,5vw,3.5rem) 0 0}
.kx-page-title{font-size:clamp(2.2rem,5vw,3.2rem)}
.kx-page-sub{font-size:1.05rem;max-width:60ch;margin:.7rem 0 0}

/* CTA band */
.kx-cta-band{background:var(--grad);color:#0a0f1f;text-align:center;padding:clamp(2.5rem,5vw,3.5rem) 0;margin-top:1rem}
.kx-cta-band h2{color:#0a0f1f}
.kx-cta-band p{color:rgba(10,15,31,.8);margin:.5rem auto 1.4rem;max-width:50ch;font-weight:500}
.kx-cta-band .kx-btn--primary{background:#0b0f1f;color:#fff}

/* Footer */
.kx-footer{background:var(--bg2);border-top:1px solid var(--line);padding:2.4rem 0 1.4rem;color:var(--muted)}
.kx-foot-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1.2rem}
.kx-foot-brand{display:flex;align-items:center;gap:.5rem;font-family:var(--display);font-size:1.2rem;color:var(--ink)}
.kx-foot-links{display:flex;gap:1.2rem;align-items:center}
.kx-foot-links a:hover{color:var(--cyan)}
.kx-foot-legal{margin-top:1.4rem;padding-top:1.1rem;border-top:1px solid var(--line);font-size:.82rem}
.kx-foot-legal a{color:var(--cyan)}

/* ===== GAME LAB ===== */
.kx-lab{display:flex;flex-direction:column;height:calc(100vh - 64px)}
.kx-lab__bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.7rem 1rem;background:var(--bg2);border-bottom:1px solid var(--line);flex-wrap:wrap}
.kx-lab__title{display:flex;align-items:center;gap:.5rem;font-family:var(--display);font-weight:700;color:var(--ink)}
.kx-lab__controls{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.kx-lab__pick{font-size:.82rem;color:var(--muted);display:flex;align-items:center;gap:.4rem}
.kx-lab__pick select{background:var(--surface2);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:.45rem .6rem;font-family:var(--sans);font-size:.85rem}
.kx-lab__split{flex:1;display:grid;grid-template-columns:1fr 1fr;min-height:0}
.kx-lab__editor{border-right:1px solid var(--line);min-height:0;overflow:hidden}
.kx-lab__editor .CodeMirror{height:100%;font-size:14px}
.kx-lab__editor textarea{width:100%;height:100%;background:var(--bg2);color:#cdd6f4;border:0;padding:14px;font-family:ui-monospace,Consolas,monospace;font-size:14px;resize:none}
.kx-lab__right{display:flex;flex-direction:column;min-height:0}
.kx-lab__stagewrap{flex:1;min-height:0;background:#0e1326;display:flex;align-items:center;justify-content:center}
.kx-lab__stagewrap iframe{width:100%;height:100%;border:0;background:#0e1326}
.kx-lab__console{height:150px;border-top:1px solid var(--line);background:var(--bg);display:flex;flex-direction:column}
.kx-con__head{display:flex;justify-content:space-between;align-items:center;padding:.35rem .8rem;font-size:.74rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-bottom:1px solid var(--line)}
.kx-con__head button{background:none;border:0;color:var(--muted);cursor:pointer;font-size:.74rem}
.kx-con__head button:hover{color:var(--cyan)}
.kx-con__body{flex:1;overflow:auto;padding:.5rem .8rem;font-family:ui-monospace,Consolas,monospace;font-size:.82rem}
.kx-con__hint{color:var(--muted)}
.kx-con__line{padding:.12rem 0;color:#cdd6f4;white-space:pre-wrap;word-break:break-word}
.kx-con__line.err{color:#ff8095}
.kx-lab__note{margin:0;padding:.5rem 1rem;font-size:.78rem;color:var(--muted);background:var(--bg2);border-top:1px solid var(--line)}
@media(max-width:820px){
  .kx-lab{height:auto}
  .kx-lab__split{grid-template-columns:1fr}
  .kx-lab__editor{border-right:0;border-bottom:1px solid var(--line);height:46vh}
  .kx-lab__stagewrap{height:46vh}
}

/* ===== EMBED MODE (lab inside a lesson) — show the GAME prominently on top ===== */
.kx-embed .kx-lab{height:100vh}
.kx-embed .kx-lab__split{display:flex;flex-direction:column;grid-template-columns:none}
.kx-embed .kx-lab__right{display:contents}            /* let stage + console flow into the column */
.kx-embed .kx-lab__stagewrap{order:0;height:260px;flex:none;border-bottom:1px solid var(--line)}
.kx-embed .kx-lab__editor{order:1;flex:1 1 auto;min-height:130px;border-right:0;border-top:0}
.kx-embed .kx-lab__console{order:2;height:84px;flex:none}
.kx-embed .kx-lab__note{display:none}

/* Responsive nav + hero */
@media(max-width:840px){
  .kx-hero__grid{grid-template-columns:1fr}
  .kx-hero__art{order:-1;max-width:460px}
  .kx-burger{display:flex}
  .kx-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:flex-start;gap:0;background:var(--surface);border-bottom:1px solid var(--line);padding:.5rem 22px 1rem;transform:translateY(-130%);transition:transform .26s;box-shadow:var(--shadow)}
  .kx-links.open{transform:none}
  .kx-links li{width:100%}.kx-links a{display:block;padding:.7rem 0}
}