/* Hub top page styles */
:root{
  --bg:#0b1020; --text:#e7ecff; --muted:#bfc6e9; --card:#141b33; --border:#223056;
  --brand:#0b5bd3; --brand-2:#7aa7ff;
}
@media (prefers-color-scheme:light){
  :root{ --bg:#f8fafc; --text:#0b1020; --muted:#4b5563; --card:#ffffff; --border:#e5e7eb; --brand:#1d4ed8; --brand-2:#93c5fd; }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Inter","Noto Sans JP",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(12,93,211,.35), transparent 60%),
    radial-gradient(600px 600px at 90% 0%, rgba(122,167,255,.25), transparent 60%),
    var(--bg);
  color:var(--text); line-height:1.65;
}
.container{max-width:1040px;margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,14,28,.6);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:800;letter-spacing:.2px}
.brand .logo{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
.site-nav a{color:var(--text);text-decoration:none;margin-left:18px;opacity:.85}
.site-nav a:hover{opacity:1}

/* hero */
.hero{padding:64px 0 24px}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.hero h1{font-size:clamp(28px,4vw,44px);margin:0 0 8px}
.lead{font-size:clamp(15px,2.2vw,18px);opacity:.95;margin:0 0 12px}
.cta{display:flex;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-width:160px;height:44px;padding:0 18px;border-radius:12px;border:1px solid var(--border);background:var(--card);color:var(--text);text-decoration:none;font-weight:600;transition:transform .06s ease, box-shadow .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 34px rgba(0,0,0,.25)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));border-color:transparent;color:#fff}

/* abstract shapes */
.hero-media{position:relative;height:220px}
.shape{position:absolute;border-radius:20px;filter:blur(8px);opacity:.8}
.shape.a{left:10%;top:10%;width:160px;height:100px;background:linear-gradient(135deg,#7aa7ff,#1d4ed8)}
.shape.b{right:12%;top:28%;width:120px;height:120px;background:linear-gradient(135deg,#00d4ff,#7aa7ff)}
.shape.c{left:40%;bottom:0;width:200px;height:80px;background:linear-gradient(135deg,#1d4ed8,#00d4ff)}

/* apps */
.section{padding:40px 0}
.section h2{margin:0 0 16px}
.app-grid{list-style:none;padding:0;margin:0;display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px}
.card-head{display:flex;gap:12px;align-items:center}
.icon{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800}
.titles h3{margin:0;font-size:18px}
.muted{color:var(--muted);margin:2px 0 0}
.desc{color:var(--muted)}
.actions{display:flex;gap:10px;margin-top:10px}

/* footer */
.site-footer{padding:28px 0;border-top:1px solid rgba(255,255,255,.08)}
.footer-inner{display:flex;align-items:center;justify-content:space-between}
.toplink{color:var(--text);text-decoration:none;opacity:.7}
.toplink:hover{opacity:1}

@media (max-width:880px){ .hero-inner{grid-template-columns:1fr} .app-grid{grid-template-columns:1fr} .btn{min-width:0;width:100%} .cta{flex-direction:column} }