*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:#ffffff;box-shadow:0 2px 4px #0000001a;position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center;height:64px}.logo{font-size:24px;font-weight:700;color:#e74c3c;text-decoration:none}.nav{display:flex;gap:24px}.nav a{text-decoration:none;color:#333;font-weight:500;transition:color .2s}.nav a:hover{color:#e74c3c}.main{min-height:calc(100vh - 64px);padding:24px 0}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}.grid-3{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.grid-4{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.card{background:white;border-radius:8px;padding:16px;box-shadow:0 2px 8px #0000001a;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.card img{width:100%;height:150px;object-fit:cover;border-radius:4px;margin-bottom:12px}.card h3{font-size:16px;margin-bottom:8px;color:#333}.card p{color:#666;font-size:14px;line-height:1.4}.btn{display:inline-block;padding:8px 16px;background:#e74c3c;color:#fff;text-decoration:none;border-radius:4px;border:none;cursor:pointer;font-size:14px;transition:background-color .2s}.btn:hover{background:#c0392b}.btn-secondary{background:#95a5a6}.btn-secondary:hover{background:#7f8c8d}.filters{background:white;padding:20px;border-radius:8px;box-shadow:0 2px 8px #0000001a;margin-bottom:24px}.filters h3{margin-bottom:16px;color:#333}.filter-group{display:flex;gap:16px;flex-wrap:wrap;align-items:center}.filter-group label{font-size:14px;color:#666}.filter-group input,.filter-group select{padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px}.loading{text-align:center;padding:40px;color:#666}.error{background:#f8d7da;color:#721c24;padding:12px 16px;border-radius:4px;margin-bottom:20px}@media (max-width: 768px){.header-content{flex-direction:column;height:auto;padding:16px 0}.nav{margin-top:12px}.filter-group{flex-direction:column;align-items:stretch}.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}}