/* One RPG minimal CSS — clean, readable, and a good canvas for your learning */
:root{
  --bg: #0f0f12;
  --panel: #16161a;
  --text: #eaeaf0;
  --muted: #a1a1b5;
  --brand: #7aa2ff;
  --brand-2: #9dffb0;
  --ring: #cfcff5;
  --radius: 16px;
  --gap: 1rem;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui, Segoe UI, Roboto, Arial, sans-serif;}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

.container{width:min(1100px, 92%);margin-inline:auto}
.site-header{position:sticky;top:0;background:rgba(15,15,18,0.9);backdrop-filter:saturate(130%) blur(8px);border-bottom:1px solid #222}
.header-inner{display:flex;justify-content:space-between;align-items:center;padding:0.75rem 0}
.logo{display:flex;align-items:center;gap:.6rem;font-weight:700;letter-spacing:.2px}
.logo-mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#101014;font-weight:900}

.site-nav ul{display:flex;gap:1rem;list-style:none;margin:0;padding:0}
.site-nav a{padding:.4rem .6rem;border-radius:10px}
.site-nav a:focus-visible{outline:2px solid var(--ring);outline-offset:3px}
.nav-toggle{display:none}

.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:1rem;top:1rem;width:auto;height:auto;padding:.5rem 1rem;background:#000;border-radius:10px;outline:2px solid var(--ring)}

.hero{padding:5rem 0;background:radial-gradient(1200px 500px at 20% -100px, rgba(122,162,255,0.25), transparent), radial-gradient(1200px 500px at 80% -120px, rgba(157,255,176,0.18), transparent)}
.hero h1{font-size: clamp(2.2rem, 4vw, 3rem);margin:0 0 .5rem}
.lead{max-width:60ch;color:var(--muted);margin:.25rem 0 1.25rem}
.cta-group{display:flex;gap:.75rem;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1rem;border-radius:12px;background:#242430;border:1px solid #2e2e3b}
.btn.primary{background:linear-gradient(180deg, #2b2bff, #3b3bf7);border:0;color:white}
.btn:focus-visible{outline:2px solid var(--ring);outline-offset:3px}

.features{padding:3rem 0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{background:var(--panel);padding:1rem;border:1px solid #222;border-radius:var(--radius);box-shadow:0 20px 40px rgba(0,0,0,0.25)}

.callout{padding:3rem 0;background:linear-gradient(180deg, rgba(122,162,255,0.08), transparent)}
.prose h1,.prose h2,.prose h3{margin-top:1rem}
.prose p{color:var(--text)}
.prose li{margin:.25rem 0}

.download-list{display:grid;gap:.75rem;padding-left:1rem}
.small{color:var(--muted);font-size:.9rem}

.contact-form{display:grid;gap:.75rem;max-width:700px}
.contact-form label{display:grid;gap:.25rem}
.contact-form input,.contact-form textarea{border-radius:12px;border:1px solid #2e2e3b;background:#20202a;color:var(--text);padding:.7rem}
.contact-form input:focus-visible,.contact-form textarea:focus-visible{outline:2px solid var(--ring);outline-offset:3px}

.site-footer{border-top:1px solid #222;margin-top:3rem;padding:2rem 0;color:var(--muted)}

/* Responsive */
@media (max-width: 800px){
  .grid-3{grid-template-columns:1fr}
  .site-nav ul{display:none;position:absolute;right:1rem;top:60px;background:#141418;border:1px solid #222;border-radius:12px;padding:.5rem}
  .site-nav ul.open{display:block}
  .nav-toggle{display:inline-flex;background:#222;border:1px solid #333;border-radius:10px;color:#fff;padding:.35rem .6rem}
}