body { font-family: sans-serif; margin: 0; background: #f8fafc; color: #333; }
.container { max-width: 1000px; margin: 0 auto; padding: 20px; min-height: 80vh; }
nav { background: #1e293b; padding: 15px; display: flex; justify-content: space-between; align-items: center; color: white; }
nav a { color: white; text-decoration: none; margin-left: 15px; }
nav .brand { font-weight: bold; font-size: 1.2rem; }
.btn-nav { background: #3b82f6; padding: 5px 10px; border-radius: 4px; }
.hero { text-align: center; padding: 60px 20px; background: white; margin-bottom: 30px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
.btn { display: inline-block; padding: 10px 20px; background: #2563eb; color: white; text-decoration: none; border-radius: 5px; border: none; cursor: pointer; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.card { background: white; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.card img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 15px; }
input, textarea { width: 100%; padding: 10px; margin-bottom: 10px; border: 1px solid #ccc; border-radius: 4px; box-sizing: border-box; }
.alert { padding: 15px; margin-bottom: 20px; border-radius: 5px; }
.success { background: #dcfce7; color: #166534; }
.error { background: #fee2e2; color: #991b1b; }
footer { text-align: center; padding: 20px; color: #666; border-top: 1px solid #ddd; margin-top: 40px; }