:root{--bg1:#0ea5e9;--bg2:#22d3ee;--bg3:#a78bfa;--text:#e5e7eb;--muted:#cbd5e1;--border:rgba(255,255,255,.2)}
*{box-sizing:border-box}html,body{height:100%}
body{margin:0;font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Cairo','Tajawal',Arial,sans-serif;color:var(--text);
background:radial-gradient(1200px 800px at 10% 10%, rgba(255,255,255,.06), transparent 40%),radial-gradient(1200px 800px at 90% 90%, rgba(255,255,255,.06), transparent 40%),linear-gradient(120deg,var(--bg1),var(--bg2) 45%,var(--bg3));min-height:100%}
.container{max-width:960px;margin:auto;padding:16px}
.nav{display:flex;gap:10px;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;gap:10px;align-items:center;font-weight:800;font-size:20px}
.logo{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#0ea5e9,#22d3ee);box-shadow:0 8px 22px rgba(14,165,233,.45);color:#fff}
.card{background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.06));border:1px solid var(--border);border-radius:20px;backdrop-filter:blur(14px);padding:20px;margin:16px 0}
.center-card{text-align:center}
.grid{display:grid;gap:16px}.products{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.btn{border:1px solid var(--border);background:rgba(255,255,255,.08);color:#fff;border-radius:12px;padding:10px 14px;cursor:pointer}
.btn:hover{background:rgba(255,255,255,.16)}
.badge{display:inline-block;background:#0ea5e9;border:1px solid var(--border);padding:4px 10px;border-radius:999px}
.muted{opacity:.8}.pre{white-space:pre-wrap}
.footer{opacity:.75;font-size:12px;text-align:center;margin:24px 0}
.toast{position:fixed;bottom:16px;right:16px;padding:10px 12px;border-radius:12px;background:#111827;color:#fff;border:1px solid var(--border);box-shadow:0 8px 24px rgba(0,0,0,.35);display:none}
@media (max-width:640px){.brand{font-size:18px}.logo{width:36px;height:36px}h1{font-size:24px}h2{font-size:20px}}