* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: #f5f5f5;
    padding: 2rem;
}

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

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.search-container {
    margin-bottom: 2rem;
    text-align: center;
}

.search-input {
    padding: 0.8rem 1.5rem;
    width: 100%;
    max-width: 500px;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 10px rgba(0, 123, 255, 0.2);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.category-section {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.category-section h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #007bff;
}

.category-list {
    display: grid;
    gap: 1rem;
}

.category-item {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.category-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    background: #007bff;
    color: white;
}

.category-item i {
    margin-right: 10px;
    color: #007bff;
}

.category-item:hover i {
    color: white;
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }
}

.hidden {
    display: none;
}