Filterable List

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Filterable List</title>
    <style>
        /* ==========================================================================
           Styles for Demo Preview Only
           ========================================================================== */
        body {
            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #f1f5f9;
            color: #334155;
            margin: 0;
            padding: 2rem;
            display: flex;
            justify-content: center;
        }

/* ==========================================================================
           Filterable List Component Styles - Copy from here
           ========================================================================== */
        .filterable-list-template {
            --filter-font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --filter-primary-text-color: #1e293b;
            --filter-secondary-text-color: #64748b;
            --filter-accent-color: #3b82f6;
            --filter-bg-color: #ffffff;
            --filter-border-color: #cbd5e1;

font-family: var(--filter-font-family);
            color: var(--filter-primary-text-color);
            width: 100%;
            max-width: 600px;
            background-color: var(--filter-bg-color);
            border: 1px solid var(--filter-border-color);
            border-radius: .5rem;
            padding: 2rem;
        }

.filterable-list-template *,
        .filterable-list-template *::before,
        .filterable-list-template *::after {
            box-sizing: border-box;
        }
        
        .filterable-list-template .list-header {
            text-align: center;
            margin-bottom: 2rem;
        }

.filterable-list-template .list-header h2 {
            font-size: 1.75rem;
            margin: 0;
        }
        
        /* Visually hide the label, but keep it accessible */
        .filterable-list-template .search-label {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

.search-input {
            width: 100%;
            padding: .75rem 1rem;
            font-size: 1rem;
            border: 1px solid var(--filter-border-color);
            border-radius: .25rem;
            margin-bottom: 2rem;
        }
        
        .search-input:focus {
            outline: 2px solid var(--filter-accent-color);
            outline-offset: 1px;
        }
        
        .item-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .item-list li {
            padding: .75rem 0;
            border-bottom: 1px solid var(--filter-border-color);
        }

.item-list li:last-child {
            border-bottom: none;
        }

.no-results {
            text-align: center;
            color: var(--filter-secondary-text-color);
            font-style: italic;
        }
    </style>
</head>
<body>

<div class="filterable-list-template">
    <header class="list-header">
        <h2>Conspiracy Clearinghouse</h2>
    </header>

<div class="search-bar">
        <label for="search-input" class="search-label">Search Theories:</label>
        <input type="search" id="search-input" class="search-input" placeholder="Search theories..." aria-controls="theory-list">
    </div>

<ul id="theory-list" class="item-list">
        <li>Birds are not real; they are government drones.</li>
        <li>The moon landing was faked on a soundstage.</li>
        <li>Finland doesn't actually exist.</li>
        <li>Shakespeare's plays were written by someone else.</li>
        <li>Denver International Airport is a secret bunker.</li>
        <li>Lizard people secretly run the world.</li>
        <li>The Earth is actually hollow.</li>
        <li>The Titanic was deliberately sunk for insurance money.</li>
        <li>Bigfoot is just a blurry, out-of-focus bear.</li>
    </ul>
    
    <p class="no-results" hidden>No matching theories found. Keep searching!</p>

noResultsMessage.hidden = visibleItemsCount > 0;
            });
        });
    </script>
</div>

</body>
</html>