:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-hover: #f1f3f5;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --accent-color: #ff8c42;
    --link-color: #007bff;
    --success-color: #28a745;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-hover: #3a3a3a;
        --text-primary: #e9ecef;
        --text-secondary: #adb5bd;
        --border-color: #495057;
        --accent-color: #ff8c42;
        --link-color: #4dabf7;
        --success-color: #51cf66;
        --shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    padding: 20px;
}

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

header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--accent-color);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.controls {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}

#search {
    flex: 1;
    min-width: 250px;
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color 0.2s;
}

#search:focus {
    outline: none;
    border-color: var(--accent-color);
}

.info {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.loading, .error {
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error {
    color: #dc3545;
}

.table-wrapper {
    overflow-x: auto;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background-color: var(--bg-hover);
    position: sticky;
    top: 0;
}

th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

tbody tr:hover {
    background-color: var(--bg-hover);
}

tbody tr.hidden {
    display: none;
}

td {
    padding: 16px;
    vertical-align: top;
}

.version {
    font-weight: 600;
    color: var(--accent-color);
    font-size: 1.1rem;
}

.date {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.platform-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    max-width: 300px;
}

.platform-tag {
    display: inline-block;
    padding: 4px 8px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.download-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background-color: var(--link-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: opacity 0.2s;
    width: fit-content;
}

.download-link:hover {
    opacity: 0.8;
}

.download-link::before {
    content: '⬇';
}

footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer a {
    color: var(--link-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.last-updated {
    margin-top: 10px;
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .controls {
        flex-direction: column;
        align-items: stretch;
    }

    #search {
        min-width: 100%;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 12px 8px;
    }

    .download-links {
        flex-direction: column;
    }
}