:root{
    --kv-bg: #0F172A;    /* slate-900 */
    --kv-text: #E2E8F0;  /* slate-200 */
    --kv-muted: #94A3B8; /* slate-400 */
    --kv-primary: #3B6EF5; /* royal blue */
    --kv-primary-contrast: #FFFFFF;
    --kv-accent: #22D3EE;  /* cyan */
    --kv-accent-contrast: #0B1220;
    --kv-surface: #0B1220; /* near-black for cards */
    --kv-elev: #111827;   /* card/bg contrast */
    --kv-safe: 1200px;    /* container max-width */
    --kv-radius: 16px;    /* rounded corners */
    --kv-shadow: 0 10px 30px rgba(2,6,23,0.6);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--kv-bg);color:var(--kv-text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}
a{color:inherit}
.container{max-width:var(--kv-safe);margin-inline:auto;padding-inline:20px}
.btn{display:inline-block;padding:12px 18px;border-radius:10px;font-weight:600;text-decoration:none}
.btn-primary{background:var(--kv-primary);color:var(--kv-primary-contrast);box-shadow:0 8px 20px rgba(59,110,245,.35)}
.btn-ghost{border:1px solid rgba(226,232,240,.15);color:var(--kv-text)}
.muted{color:var(--kv-muted)}
header{position:sticky;top:0;background:linear-gradient(180deg, rgba(15,23,42,.9), rgba(15,23,42,.6), rgba(15,23,42,0));backdrop-filter:saturate(180%) blur(8px);z-index:50}
nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;gap:12px;align-items:center;text-decoration:none}
.brand .word{font-family:Sora,Inter,sans-serif;font-weight:700;letter-spacing:.4px}
.brand .word .o{background:linear-gradient(135deg,var(--kv-primary),var(--kv-accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.navlinks{display:flex;gap:18px}
.navlinks a{opacity:.9;text-decoration:none}
.navlinks a:hover{opacity:1}
.hero{padding:80px 0 60px;background:
    radial-gradient(600px 300px at 10% -10%, rgba(59,110,245,.18), transparent 60%),
    radial-gradient(600px 300px at 90% -10%, rgba(34,211,238,.16), transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.headline{font-family:Sora,Inter,sans-serif;font-size:clamp(32px,5.5vw,56px);line-height:1.05;margin:0 0 8px}
.sub{font-size:clamp(16px,2.2vw,20px);color:var(--kv-muted);margin:0 0 22px}
.k-card{background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));border:1px solid rgba(148,163,184,.14);padding:22px;border-radius:var(--kv-radius);box-shadow:var(--kv-shadow)}
.apps{padding:40px 0}
.apps-grid{display:grid;gap:22px}
.apps-card{display:flex;flex-direction:column;gap:16px;min-height:100%}
.apps-card h3{font-family:Sora,Inter,sans-serif;margin:0 0 6px}
.apps-card p{margin:0 0 14px;color:var(--kv-muted)}
.apps-card a{font-weight:600;text-decoration:none}
.app-copy{display:grid;gap:8px}
.app-logo{width:72px;height:auto}
.app-link{display:inline-flex;align-items:center;gap:6px;margin-top:auto}
.apps-card a .arrow{transition:transform .2s ease}
.apps-card a:hover .arrow{transform:translateX(4px)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid rgba(148,163,184,.18);border-radius:999px;color:var(--kv-muted);font-size:14px}
.cta{padding:60px 0}
.cta .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
footer{border-top:1px solid rgba(148,163,184,.14);padding:28px 0;color:var(--kv-muted)}
.kmono{width:36px;height:36px}
.menu-btn{
    display:none;
    align-items:center;
    gap:8px;
    background: rgba(15,23,42,.92);
    color:#fff;
    border:1px solid rgba(148,163,184,.35);
    padding:10px 14px;
    border-radius:10px;
    font-weight:600;
    box-shadow: 0 6px 18px rgba(2,6,23,.4);
}
.menu-btn svg, .menu-btn img{width:18px;height:18px}
.menu-btn[aria-expanded="true"]{background: var(--kv-primary);border-color: transparent;}
/* Responsive */
@media (max-width:980px){
    .hero-grid{grid-template-columns:1fr}
    .split{grid-template-columns:1fr}
    nav .navlinks{display:none}
    .menu-btn{display:inline-flex}
}
@media (min-width:720px){
    .apps-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:981px){.menu-btn{display:none}}
/* Simple mobile menu */
#mobileMenu{display:none;}
#mobileMenu.open{display:block;}
#mobileMenu a{display:block;padding:12px 0;border-bottom:1px solid rgba(148,163,184,.14);text-decoration:none}