:root{
  --bg:#0b1220;
  --surface:#111a2e;
  --surface-2:#16223d;
  --border:#233352;
  --text:#e8ecf5;
  --muted:#9aa6c2;
  --brand:#4f8cff;
  --brand-2:#7a5cff;
  --accent:#22d3ee;
  --success:#34d399;
  --warning:#fbbf24;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
  --maxw:1480px;
  --nav-h:58px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* Top nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.9);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:none;margin:0;padding:12px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px;min-width:0}
.brand-mark{width:28px;height:28px;border-radius:8px;background:conic-gradient(from 210deg,var(--brand),var(--brand-2),var(--accent),var(--brand));box-shadow:0 0 0 1px rgba(255,255,255,.08) inset;flex:none}
.brand-name{font-size:16px}
.brand-sub{color:var(--muted);font-weight:500;font-size:13px;margin-left:6px}
.nav ul{list-style:none;display:flex;gap:4px;margin:0;padding:0;flex-wrap:wrap}
.nav a.link{padding:8px 13px;border-radius:10px;color:var(--muted);font-weight:500;font-size:14px;transition:.15s}
.nav a.link:hover{color:var(--text);background:var(--surface-2)}
.nav a.link.active{color:var(--text);background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--border)}

/* Hub layout (home / landing pages) */
.container{max-width:var(--maxw);margin:0 auto;padding:48px 26px 80px}
.hero{padding:40px 0 20px}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;font-weight:600}
h1{font-size:clamp(28px,5vw,48px);line-height:1.1;margin:0 0 14px;font-weight:700;letter-spacing:-.02em}
h1 span{background:linear-gradient(90deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{color:var(--muted);font-size:clamp(15px,1.6vw,17px);max-width:720px;line-height:1.55}

.section-title{font-size:22px;margin:44px 0 18px;font-weight:650;letter-spacing:-.01em}
.section-sub{color:var(--muted);font-size:14px;margin:-10px 0 20px}

.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.card{position:relative;display:block;padding:22px;background:linear-gradient(180deg,var(--surface),var(--surface-2));border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:.18s;overflow:hidden}
.card:hover{transform:translateY(-2px);border-color:#355083}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 120px at 0% 0%,rgba(79,140,255,.18),transparent 60%);pointer-events:none}
.card .tag{display:inline-block;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.card h3{margin:0 0 6px;font-size:18px;font-weight:650}
.card p{margin:0;color:var(--muted);font-size:14px;line-height:1.5}
.card.empty{opacity:.6;pointer-events:none}
.card.empty h3::after{content:" \00B7  coming soon";color:var(--muted);font-weight:500;font-size:14px}

/* Footer */
footer{border-top:1px solid var(--border);margin-top:60px;padding:26px;color:var(--muted);font-size:13px}
footer .foot-inner{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* Dashboard viewer — full-bleed, fills viewport */
body.viewer{height:100vh;overflow:hidden}
body.viewer .nav{position:static}
.viewer-main{height:calc(100vh - var(--nav-h));display:flex;flex-direction:column;background:#0b1220}
.tabbar{display:flex;gap:4px;padding:10px 14px;border-bottom:1px solid var(--border);background:rgba(17,26,46,.6);overflow-x:auto;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
.tabbar button{appearance:none;background:transparent;border:1px solid transparent;color:var(--muted);font:inherit;font-size:13px;font-weight:500;padding:7px 14px;border-radius:8px;cursor:pointer;white-space:nowrap;transition:.15s}
.tabbar button:hover{color:var(--text);background:var(--surface-2)}
.tabbar button.active{color:var(--text);background:var(--surface-2);border-color:var(--border)}
.frame-host{flex:1;position:relative;background:#fff}
.frame-host iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}

/* ===== MOBILE ===== */
@media(max-width:760px){
  :root{--nav-h:auto}
  .nav-inner{padding:10px 14px;gap:6px;flex-direction:column;align-items:stretch}
  .brand{margin-bottom:2px}
  .brand-sub{display:none}
  .nav ul{gap:2px;justify-content:flex-start}
  .nav a.link{padding:6px 10px;font-size:13px}
  .container{padding:24px 16px 48px}
  .hero{padding:20px 0 8px}
  h1{font-size:clamp(22px,7vw,32px)}
  .lede{font-size:15px}
  .section-title{font-size:18px;margin:32px 0 14px}
  .grid{grid-template-columns:1fr;gap:14px}
  .card{padding:18px}
  .card h3{font-size:16px}
  body.viewer{height:auto;overflow:auto}
  body.viewer .viewer-main{height:auto;min-height:calc(100vh - 100px)}
  .frame-host{height:80vh;min-height:500px}
  .frame-host iframe{position:relative}
  .tabbar{padding:8px 10px;gap:3px}
  .tabbar button{padding:6px 11px;font-size:12px}
  footer .foot-inner{flex-direction:column;gap:6px;text-align:center}
}

@media(max-width:420px){
  .nav-inner{padding:8px 12px}
  .brand-name{font-size:14px}
  .nav a.link{padding:5px 8px;font-size:12px}
  h1{font-size:22px}
  .container{padding:18px 12px 40px}
  .card{padding:16px}
  .frame-host{height:75vh;min-height:450px}
  .tabbar button{padding:5px 9px;font-size:11px}
}