/* main.css - site-wide styles */
:root{
  --primary:#4285F4;
  --bg:#fafafa;
  --card-bg:#ffffff;
  --muted:#666;
}
*{box-sizing:border-box}
body{font-family:Roboto, Arial, sans-serif;margin:0;background:var(--bg);color:#222}
.container{max-width:1180px;margin:0 auto;padding:24px}
.site-header{background:var(--primary);color:#fff;padding:40px 0;text-align:center}
.site-title{margin:0;font-weight:500;font-size:28px}
.site-desc{margin:8px 0 0;opacity:0.95}
.site-nav{margin-top:12px}
.site-nav a{color:#fff;margin:0 10px;text-decoration:none;font-weight:500}

/* cards & grids */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.card{background:var(--card-bg);border-radius:10px;padding:18px;box-shadow:0 4px 12px rgba(0,0,0,0.06);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,0,0,0.12)}
.section-title{font-size:22px;margin:28px 0 12px;font-weight:500}

/* ads */
.ad-top,.ad-bottom{margin:18px 0}
.ad-placeholder{background:#fff;border-radius:8px;padding:16px;text-align:center;border:1px solid #eee;color:var(--muted)}

/* search */
.search-box{max-width:640px;margin:18px auto;display:flex}
.search-box input{flex:1;padding:12px 16px;border-radius:30px;border:1px solid #ddd;font-size:15px}

/* stats */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.stat{background:var(--card-bg);padding:16px;border-radius:10px;text-align:center;box-shadow:0 4px 12px rgba(0,0,0,0.06)}
.stat h2{margin:0;color:var(--primary);font-size:28px}
.stat p{margin:8px 0 0;color:var(--muted)}

/* footer */
.site-footer{padding:28px 0;text-align:center;color:var(--muted);font-size:14px}

/* theme toggle */
.theme-toggle{position:fixed;right:20px;bottom:20px;background:var(--primary);color:#fff;border:none;border-radius:50%;width:52px;height:52px;font-size:18px;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,0.12)}

/* responsive */
@media (max-width:600px){
  .site-title{font-size:20px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
}