:root{
  --primary:#2C3E50;      /* dark blue for header like Electro */
  --accent:#E53935;       /* red accent similar to badges */
  --bg:#F5F7FA;           /* light bg */
  --card:#FFFFFF;
  --text:#2f3640;
  --muted:#7f8c8d;
  --border:#e6e9ee;
  --brand:#4169E1;        /* royal blue brand */
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;}

a{color:var(--brand);text-decoration:none}
img{max-width:100%;display:block}

.container{max-width:1200px;margin:0 auto;padding:0 16px}

.topbar{background:var(--primary);color:#fff;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:8px 16px}
.topbar a{color:#fff;opacity:0.9;margin-left:12px}
.topbar a:hover{opacity:1}

.header{background:#fff;border-bottom:1px solid var(--border)}
.header .container{display:grid;grid-template-columns:220px 1fr 240px;gap:16px;align-items:center;padding:16px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--brand)}
.logo img{height:36px}

.search{display:flex;border:2px solid var(--brand);border-radius:6px;overflow:hidden}
.search input{flex:1;border:0;padding:10px 12px;outline:none}
.search button{background:var(--brand);color:#fff;border:0;padding:0 14px;cursor:pointer}

.header .actions{justify-self:end;display:flex;gap:8px}
.btn, .btn-primary{display:inline-flex;align-items:center;gap:6px;border-radius:6px;padding:10px 12px;border:1px solid var(--border);background:#fff;color:var(--text);cursor:pointer}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}

.navbar{background:#fff;border-bottom:1px solid var(--border)}
.navbar .container{display:flex;gap:20px;align-items:center;padding:10px 16px}
.navbar a{color:var(--text);font-weight:600}
.navbar a.active{color:var(--brand)}

.layout{display:grid;grid-template-columns:3fr 1fr;gap:24px;padding:16px 0}
@media(max-width:992px){.header .container{grid-template-columns:1fr}.layout{grid-template-columns:1fr}}

.card{background:var(--card);border:1px solid var(--border);border-radius:10px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.card .body{padding:12px}

.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:1100px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid{grid-template-columns:1fr}}

.product{display:flex;flex-direction:column;gap:8px}
.product .thumb{background:#fff;height:210px;display:flex;align-items:center;justify-content:center}
.product h3{font-size:16px;margin:0;line-height:1.35}
.price{font-weight:800;font-size:18px}
.meta{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}

.vote{display:flex;align-items:center;gap:6px}
.vote button{border:1px solid var(--border);background:#fff;border-radius:6px;padding:6px 8px;cursor:pointer}
.badge{background:var(--accent);color:#fff;border-radius:999px;padding:3px 8px;font-size:12px}

.sidebar .box{background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px;margin-bottom:16px}

.footer{background:#fff;border-top:1px solid var(--border);margin-top:24px}
.footer .container{display:flex;justify-content:space-between;gap:16px;padding:16px;color:var(--muted);flex-wrap:wrap}