:root { --bg: #030303; --surface: #0e0e0e; --neon: #ccff00; --white: #fff; --border: rgba(255,255,255,0.1); }
* { margin:0; padding:0; box-sizing:border-box; font-family: 'Segoe UI', sans-serif; }
body { background: var(--bg); color: var(--white); }
a { text-decoration: none; color: inherit; }
header { padding: 20px 5%; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); background: rgba(0,0,0,0.8); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; }
.logo { font-size: 1.5rem; font-weight: bold; letter-spacing: 2px; }
.logo span { color: var(--neon); }
nav a { margin-left: 20px; font-weight: 500; transition: 0.3s; }
nav a:hover { color: var(--neon); }
.container { padding: 50px 5%; max-width: 1400px; margin: 0 auto; }
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 30px; margin-top: 30px; }
.card { background: var(--surface); border: 1px solid var(--border); overflow: hidden; transition: 0.3s; position: relative; }
.card:hover { transform: translateY(-5px); border-color: var(--neon); }
.card img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 20px; }
.card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.price { color: var(--neon); font-size: 1.2rem; font-weight: bold; }
.btn { display: block; width: 100%; padding: 10px; background: var(--neon); color: black; text-align: center; font-weight: bold; border: none; cursor: pointer; margin-top: 15px; transition: 0.3s; }
.btn:hover { background: white; }
.form-box { max-width: 400px; margin: 50px auto; padding: 30px; background: var(--surface); border: 1px solid var(--border); }
input { width: 100%; padding: 12px; margin-bottom: 15px; background: #222; border: 1px solid #333; color: white; outline: none; }
input:focus { border-color: var(--neon); }
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { text-align: left; padding: 15px; border-bottom: 1px solid var(--border); }
th { color: var(--neon); }
.alert { padding: 10px; margin-bottom: 20px; background: rgba(204, 255, 0, 0.1); border: 1px solid var(--neon); color: var(--neon); }