.page-body {
    /* Dark mode variables */
    --bg-color-light: #f4f4f4;
    --text-color-light: #333;
    --container-bg-light: #fff;
    --container-shadow-light: rgba(0,0,0,0.1);
    --input-border-light: #ddd;
    --table-border-light: #e0e0e0;
    --th-bg-light: #f0f0f0;
    --tr-even-bg-light: #f9f9f9;
    --tr-hover-bg-light: #e8f4ff;
    --key-bg-light: #e8e8e8;
    --key-border-light: #ccc;
    --key-shadow-light: rgba(0,0,0,0.1);
    --key-text-light: #333;

    --bg-color-dark: #1e1e1e;
    --text-color-dark: #e0e0e0;
    --container-bg-dark: #2a2a2a;
    --container-shadow-dark: rgba(255,255,255,0.05);
    --input-border-dark: #555;
    --table-border-dark: #444;
    --th-bg-dark: #333;
    --tr-even-bg-dark: #252525;
    --tr-hover-bg-dark: #3a4f66;
    --key-bg-dark: #4a4a4a;
    --key-border-dark: #666;
    --key-shadow-dark: rgba(255,255,255,0.05);
    --key-text-dark: #e0e0e0;

    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: var(--bg-color-light);
    color: var(--text-color-light);
    transition: background-color 0.3s, color 0.3s;
}

.theme-dark .page-body {
    background-color: var(--bg-color-dark);
    color: var(--text-color-dark);
}

@media (prefers-color-scheme: dark) {
    html:not(.theme-light) .page-body { /* Respect explicit theme-light class */
        background-color: var(--bg-color-dark);
        color: var(--text-color-dark);
    }
    html:not(.theme-light) .container {
        background-color: var(--container-bg-dark);
        box-shadow: 0 0 15px var(--container-shadow-dark);
    }
    html:not(.theme-light) .page-title {
        color: var(--text-color-dark);
    }
    html:not(.theme-light) #searchInput,
    html:not(.theme-light) #categoryFilter {
        background-color: var(--bg-color-dark);
        color: var(--text-color-dark);
        border: 1px solid var(--input-border-dark);
    }
    html:not(.theme-light) .shortcuts-table th,
    html:not(.theme-light) .shortcuts-table td {
        border: 1px solid var(--table-border-dark);
    }
    html:not(.theme-light) .shortcuts-table-header th {
        background-color: var(--th-bg-dark);
    }
    html:not(.theme-light) .shortcuts-table-body tr:nth-child(even) {
        background-color: var(--tr-even-bg-dark);
    }
    html:not(.theme-light) .shortcuts-table-body tr:hover {
        background-color: var(--tr-hover-bg-dark);
    }
    html:not(.theme-light) .key {
        background-color: var(--key-bg-dark);
        border: 1px solid var(--key-border-dark);
        box-shadow: 0 1px 1px var(--key-shadow-dark);
        color: var(--key-text-dark);
    }
}

.container {
    background-color: var(--container-bg-light);
    box-shadow: 0 0 15px var(--container-shadow-light);
    /* ... other container styles ... */
    max-width: 1000px;
    margin: auto;
    /* background-color is handled by var and media query */
    padding: 20px;
    border-radius: 8px;
    /* box-shadow is handled by var and media query */
}

.page-title {
    text-align: center;
    /* color is handled by var and media query */
    margin-bottom: 20px;
}

.controls {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    gap: 15px;
}

#searchInput, #categoryFilter {
    background-color: var(--container-bg-light); /* Or specific input bg */
    color: var(--text-color-light);
    border: 1px solid var(--input-border-light);
    /* ... other input styles ... */
}

#searchInput {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid var(--input-border-light);
    border-radius: 5px;
    font-size: 16px;
}

#categoryFilter {
    padding: 10px;
    /* border, font-size, etc. inherited from #searchInput, #categoryFilter combined rule or set by vars */
    border-radius: 5px; /* This was specific to categoryFilter before, keeping if needed */
    min-width: 200px;
}

.shortcuts-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.shortcuts-table th, .shortcuts-table td {
    border: 1px solid var(--table-border-light);
    /* border is handled by var and media query */
    padding: 12px;
    text-align: left;
    vertical-align: middle;
}

.shortcuts-table-header th {
    background-color: var(--th-bg-light);
    /* background-color is handled by var and media query */
    font-weight: 600;
}

.shortcuts-table-body tr:nth-child(even) {
    background-color: var(--tr-even-bg-light);
}

.shortcuts-table-body tr:hover {
    background-color: var(--tr-hover-bg-light);
}

.key {
    background-color: var(--key-bg-light);
    border: 1px solid var(--key-border-light);
    box-shadow: 0 1px 1px var(--key-shadow-light);
    color: var(--key-text-light);
    /* background-color, border, box-shadow, color are handled by vars and media query */
    display: inline-block;
    border-radius: 4px;
    padding: 3px 8px;
    margin: 0 2px;
    font-family: 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 0.9em;
    min-width: 1em;
    text-align: center;
    line-height: 1.4;
}

.key-symbol {
    font-size: 1.2em; /* Make symbols slightly larger */
}

/* Specific key styles if needed, e.g., for longer keys like Space */

/* Dark mode specific overrides using the .theme-dark class */
.theme-dark .container {
    background-color: var(--container-bg-dark);
    box-shadow: 0 0 15px var(--container-shadow-dark);
}

.theme-dark .page-title {
    color: var(--text-color-dark);
}

.theme-dark #searchInput,
.theme-dark #categoryFilter {
    background-color: var(--bg-color-dark); /* Or specific input dark bg */
    color: var(--text-color-dark);
    border: 1px solid var(--input-border-dark);
}

.theme-dark .shortcuts-table th,
.theme-dark .shortcuts-table td {
    border: 1px solid var(--table-border-dark);
}

.theme-dark .shortcuts-table-header th {
    background-color: var(--th-bg-dark);
}

.theme-dark .shortcuts-table-body tr:nth-child(even) {
    background-color: var(--tr-even-bg-dark);
}

.theme-dark .shortcuts-table-body tr:hover {
    background-color: var(--tr-hover-bg-dark);
}

.theme-dark .key {
    background-color: var(--key-bg-dark);
    border: 1px solid var(--key-border-dark);
    box-shadow: 0 1px 1px var(--key-shadow-dark);
    color: var(--key-text-dark);
}
.key-space {
    padding: 3px 20px;
}

.key-modifier {
    /* Modifiers might have slightly different styling if desired */
}

.hidden-row {
    display: none;
}