/* =============================================================================
   Design Tokens - Customize these to change the look of the site
   ============================================================================= */

:root {
    /* Typography */
    --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-xxl: 32px;
    --line-height: 1.5;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;

    /* Light theme colors (default) */
    --color-bg: #ffffff;
    --color-bg-secondary: #f5f5f5;
    --color-text: #1a1a1a;
    --color-text-secondary: #666666;
    --color-border: #e0e0e0;
    --color-accent: #0066cc;
    --color-accent-hover: #0052a3;
    --color-error: #cc0000;
    --color-success: #008800;
    --color-warning: #cc6600;
    --color-info: #0066cc;

    /* Search input */
    --input-bg: #ffffff;
    --input-border: #cccccc;
    --input-focus-border: var(--color-accent);

    /* Results */
    --result-hover-bg: #f0f0f0;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #1a1a1a;
        --color-bg-secondary: #2a2a2a;
        --color-text: #e0e0e0;
        --color-text-secondary: #999999;
        --color-border: #404040;
        --color-accent: #4da6ff;
        --color-accent-hover: #80bfff;
        --color-error: #ff6666;
        --color-success: #66cc66;
        --color-warning: #ffaa33;
        --color-info: #4da6ff;

        --input-bg: #2a2a2a;
        --input-border: #404040;

        --result-hover-bg: #333333;
    }
}

/* =============================================================================
   Base Styles
   ============================================================================= */

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--color-text);
    background-color: var(--color-bg);
}

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

a:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

/* =============================================================================
   Layout
   ============================================================================= */

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

header {
    margin-bottom: var(--spacing-xl);
    padding-top: 15vh;
    text-align: center;
}

#home-link {
    text-decoration: none;
    color: inherit;
}

#home-link:hover {
    text-decoration: none;
    color: inherit;
}

header h1 {
    font-family: 'Press Start 2P', cursive;
    font-size: var(--font-size-xxl);
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    line-height: 1.4;
    text-align: center;
}

.hidden {
    display: none !important;
}

/* =============================================================================
   Search
   ============================================================================= */

.search-container {
    /* Search is in header, spacing handled by header margin */
}

#search-input {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-family);
    font-size: var(--font-size-lg);
    color: var(--color-text);
    background-color: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color 0.15s ease;
}

#search-input:focus {
    border-color: var(--input-focus-border);
}

#search-input::placeholder {
    color: var(--color-text-secondary);
}

/* =============================================================================
   Search Results
   ============================================================================= */

#search-results {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.result-item {
    display: block;
    padding: var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: inherit;
    transition: background-color 0.1s ease;
    user-select: text;
    cursor: pointer;
}

.result-item:hover {
    background-color: var(--result-hover-bg);
    text-decoration: none;
}

.result-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.result-meta {
    margin-top: var(--spacing-xs);
}

.result-source {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-family: var(--font-family-mono);
}

.result-code {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-accent);
}

.result-name-line {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.result-name {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.result-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
    /* Truncate to single line with ellipsis */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.no-description,
.no-description-detail {
    font-style: italic;
    color: var(--color-text-secondary);
    opacity: 0.7;
}

/* =============================================================================
   Related Articles
   ============================================================================= */

.related-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.related-link a {
    font-weight: 500;
}

.related-link-source {
    margin-left: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.related-link-source::before {
    content: "—";
    margin-right: var(--spacing-xs);
}

/* Loading spinner */
.loading {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    color: var(--color-text-secondary);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* No results */
.no-results {
    padding: var(--spacing-lg);
    color: var(--color-text-secondary);
    text-align: center;
}

/* =============================================================================
   Error Detail View
   ============================================================================= */

/* Search is now in header, no back link needed */

.error-code-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

#error-detail h2 {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xl);
    word-break: break-all;
}

#error-detail .error-name-line {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

#error-detail .error-name {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
}

#error-detail .error-source {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-style: italic;
}

#error-detail .error-info {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xs) var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

#error-detail .error-info dt {
    font-weight: 500;
    color: var(--color-text-secondary);
}

#error-detail .error-info dd {
    font-family: var(--font-family-mono);
}

#error-detail .error-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.detail-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.detail-section h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.detail-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-sm) var(--spacing-lg);
}

.detail-grid dt {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.detail-grid dd {
    font-family: var(--font-family-mono);
}

/* Severity colors */
.severity-success { color: var(--color-success); }
.severity-info { color: var(--color-info); }
.severity-warning { color: var(--color-warning); }
.severity-error { color: var(--color-error); }

/* =============================================================================
   Not Found View
   ============================================================================= */

#not-found-view {
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
}

#not-found-view h2 {
    margin-bottom: var(--spacing-md);
}

#not-found-view p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* =============================================================================
   Type Badges (HRESULT, NTSTATUS, WIN32)
   ============================================================================= */

:root {
    /* Badge colors - light theme */
    --badge-hresult-bg: #e3f2fd;
    --badge-hresult-text: #1565c0;
    --badge-ntstatus-bg: #fff3e0;
    --badge-ntstatus-text: #e65100;
    --badge-win32-bg: #e8f5e9;
    --badge-win32-text: #2e7d32;
    --badge-common-bg: #fff8e1;
    --badge-common-text: #f9a825;
}

@media (prefers-color-scheme: dark) {
    :root {
        --badge-hresult-bg: #1e3a5f;
        --badge-hresult-text: #64b5f6;
        --badge-ntstatus-bg: #4a2c00;
        --badge-ntstatus-text: #ffb74d;
        --badge-win32-bg: #1b3d1f;
        --badge-win32-text: #81c784;
        --badge-common-bg: #3d3200;
        --badge-common-text: #ffd54f;
    }
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    white-space: nowrap;
}

.badge-hresult {
    background-color: var(--badge-hresult-bg);
    color: var(--badge-hresult-text);
}

.badge-ntstatus {
    background-color: var(--badge-ntstatus-bg);
    color: var(--badge-ntstatus-text);
}

.badge-win32 {
    background-color: var(--badge-win32-bg);
    color: var(--badge-win32-text);
}

.badge-common {
    background-color: var(--badge-common-bg);
    color: var(--badge-common-text);
}

.badge-link {
    text-decoration: none;
}

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

.result-badges {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

/* =============================================================================
   Keyboard Navigation Highlight
   ============================================================================= */

.result-item.highlighted {
    background-color: var(--result-hover-bg);
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
}

/* =============================================================================
   Bitwise Visualization
   ============================================================================= */

:root {
    /* Bit visualization colors - light theme */
    --bit-severity-bg: #ffcdd2;
    --bit-severity-text: #b71c1c;
    --bit-reserved-bg: #e0e0e0;
    --bit-reserved-text: #616161;
    --bit-facility-bg: #bbdefb;
    --bit-facility-text: #0d47a1;
    --bit-code-bg: #c8e6c9;
    --bit-code-text: #1b5e20;
    --bit-customer-bg: #b2ebf2;
    --bit-customer-text: #006064;
    --bit-nbit-bg: #e1bee7;
    --bit-nbit-text: #6a1b9a;
    --bit-xbit-bg: #f8bbd9;
    --bit-xbit-text: #880e4f;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bit-severity-bg: #4a1a1a;
        --bit-severity-text: #ef9a9a;
        --bit-reserved-bg: #424242;
        --bit-reserved-text: #bdbdbd;
        --bit-facility-bg: #0d2744;
        --bit-facility-text: #90caf9;
        --bit-code-bg: #1a3d1a;
        --bit-code-text: #a5d6a7;
        --bit-customer-bg: #004d54;
        --bit-customer-text: #80deea;
        --bit-nbit-bg: #2a1a3d;
        --bit-nbit-text: #ce93d8;
        --bit-xbit-bg: #4a1a35;
        --bit-xbit-text: #f48fb1;
    }
}

.bit-visualization {
    /* Break out of section padding to use full width */
    margin: var(--spacing-lg) calc(-1 * var(--spacing-lg));
    /* Allow horizontal scroll only if needed for narrow screens */
    overflow-x: auto;
    overflow-y: hidden;
}

.bit-grid-wrapper {
    /* Let the grid determine its own width */
    width: max-content;
    position: relative;
    /* Center when there's room, left-align when scrolling */
    margin: 0 auto;
}

.bit-grid {
    display: flex;
    margin-bottom: var(--spacing-xs);
}

.bit-cell {
    width: 24px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: 1px solid var(--color-border);
    margin-right: -1px;
}

.bit-cell:first-child {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.bit-cell:last-child {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-right: 0;
}

.bit-cell.severity { background-color: var(--bit-severity-bg); color: var(--bit-severity-text); }
.bit-cell.customer { background-color: var(--bit-customer-bg); color: var(--bit-customer-text); }
.bit-cell.nbit { background-color: var(--bit-nbit-bg); color: var(--bit-nbit-text); }
.bit-cell.xbit { background-color: var(--bit-xbit-bg); color: var(--bit-xbit-text); }
.bit-cell.reserved { background-color: var(--bit-reserved-bg); color: var(--bit-reserved-text); }
.bit-cell.facility { background-color: var(--bit-facility-bg); color: var(--bit-facility-text); }
.bit-cell.code { background-color: var(--bit-code-bg); color: var(--bit-code-text); }

.bit-labels {
    position: relative;
    height: 60px;
}

.bit-label-group {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 11px;
}

.bit-label-bracket {
    width: 100%;
    height: 12px;
    border-left: 2px solid var(--color-text-secondary);
    border-right: 2px solid var(--color-text-secondary);
    border-bottom: 2px solid var(--color-text-secondary);
    border-radius: 0 0 4px 4px;
}

.bit-label-text {
    margin-top: 2px;
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
}

.bit-label-value {
    font-family: var(--font-family-mono);
    font-weight: normal;
    color: var(--color-text-secondary);
}

.bit-numbers {
    display: flex;
    margin-bottom: 2px;
}

.bit-number {
    width: 24px;
    font-size: 9px;
    color: var(--color-text-secondary);
    font-family: var(--font-family-mono);
    /* Use flexbox for true centering regardless of digit count */
    display: flex;
    justify-content: center;
    align-items: center;
    /* Match the -1px overlap that bit-cells have for their borders */
    margin-right: -1px;
}

.bit-number:last-child {
    margin-right: 0;
}

.bit-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    /* Prevent inheriting horizontal scroll from parent */
    overflow: visible;
    max-width: 100%;
}

.bit-legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.bit-legend-swatch {
    width: 16px;
    height: 16px;
    border-radius: 2px;
    border: 1px solid var(--color-border);
}

.bit-legend-swatch.severity { background-color: var(--bit-severity-bg); }
.bit-legend-swatch.customer { background-color: var(--bit-customer-bg); }
.bit-legend-swatch.nbit { background-color: var(--bit-nbit-bg); }
.bit-legend-swatch.xbit { background-color: var(--bit-xbit-bg); }
.bit-legend-swatch.reserved { background-color: var(--bit-reserved-bg); }
.bit-legend-swatch.facility { background-color: var(--bit-facility-bg); }
.bit-legend-swatch.code { background-color: var(--bit-code-bg); }

/* =============================================================================
   Search Highlight
   ============================================================================= */

mark {
    background-color: #fff59d;
    color: inherit;
    padding: 0 2px;
    border-radius: 2px;
}

@media (prefers-color-scheme: dark) {
    mark {
        background-color: #5d4e00;
    }
}

/* =============================================================================
   Also Known As
   ============================================================================= */

.also-known-as {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.aka-link {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-sm);
    text-decoration: none;
    color: var(--color-text);
    transition: background-color 0.1s ease;
}

.aka-link:hover {
    background-color: var(--result-hover-bg);
    text-decoration: none;
}

.aka-source {
    color: var(--color-text-secondary);
    font-size: 12px;
    margin-left: var(--spacing-xs);
}