/**
 * Funky Keyboard - Help Overlay Styles
 * 
 * @module Funky.Keyboard
 */

/* ==========================================================================
   HELP OVERLAY
   ========================================================================== */

.funky-keyboard-help {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    animation: fkh-fadein 0.15s ease-out;
}

.funky-keyboard-help.fkh--closing {
    animation: fkh-fadeout 0.15s ease-out forwards;
}

@keyframes fkh-fadein {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fkh-fadeout {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

/* ==========================================================================
   DIALOG
   ========================================================================== */

.fkh-dialog {
    background: var(--modal-bg, #1e293b);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    max-width: 700px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: fkh-slideup 0.2s ease-out;
}

@keyframes fkh-slideup {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.funky-keyboard-help.fkh--closing .fkh-dialog {
    animation: fkh-slidedown 0.15s ease-out forwards;
}

@keyframes fkh-slidedown {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.fkh-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
}

.fkh-header h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary, #f1f5f9);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.fkh-header h2 i {
    color: var(--primary, #60a5fa);
}

.fkh-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary, #94a3b8);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.15s, color 0.15s;
}

.fkh-close:hover {
    background: var(--hover-bg, rgba(255, 255, 255, 0.1));
    color: var(--text-primary, #f1f5f9);
}

.fkh-close:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

/* ==========================================================================
   SEARCH BAR
   ========================================================================== */

.fkh-search {
    padding: 0 1.5rem 0.75rem;
}

.fkh-search-input {
    width: 100%;
    padding: 0.625rem 1rem;
    background: var(--input-bg, rgba(255, 255, 255, 0.05));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    border-radius: 6px;
    color: var(--text-primary, #f1f5f9);
    font-size: 0.875rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.fkh-search-input::placeholder {
    color: var(--text-secondary, #94a3b8);
}

.fkh-search-input:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
    border-color: var(--focus-ring-color);
}

/* ==========================================================================
   CONTENT
   ========================================================================== */

.fkh-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Custom scrollbar */
.fkh-content::-webkit-scrollbar {
    width: 6px;
}

.fkh-content::-webkit-scrollbar-track {
    background: transparent;
}

.fkh-content::-webkit-scrollbar-thumb {
    background: var(--border-color, rgba(255, 255, 255, 0.2));
    border-radius: 3px;
}

.fkh-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary, #94a3b8);
}

/* ==========================================================================
   GROUPS
   ========================================================================== */

.fkh-group {
    background: var(--card-bg, rgba(255, 255, 255, 0.03));
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.06));
    border-radius: 8px;
    padding: 1rem;
}

.fkh-group h3 {
    margin: 0 0 0.75rem 0;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary, #60a5fa);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Active scope indicator */
.fkh-group--active {
    border-color: var(--primary, #60a5fa);
    background: rgba(96, 165, 250, 0.05);
}

.fkh-active-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    background: var(--primary, #60a5fa);
    color: #fff;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 9999px;
}

.fkh-group ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.fkh-group li {
    padding: 0;
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.06));
}

.fkh-group li:last-child {
    border-bottom: none;
}

/* Interactive shortcut button */
.fkh-shortcut-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    padding: 0.75rem 0.5rem;
    background: none;
    border: none;
    border-radius: 4px;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}

.fkh-shortcut-btn:hover {
    background: var(--hover-bg, rgba(255, 255, 255, 0.05));
}

.fkh-shortcut-btn:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset-inset);
    box-shadow: var(--focus-ring-shadow-inset);
    background: var(--hover-bg, rgba(255, 255, 255, 0.08));
}

.fkh-shortcut-btn:active {
    transform: scale(0.98);
}

.fkh-shortcut-btn span {
    color: var(--text-primary, #f1f5f9);
    font-size: 0.9rem;
    flex: 1;
}

/* ==========================================================================
   KBD KEY STYLES
   ========================================================================== */

.fkh-group kbd,
.fkh-footer kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    background: linear-gradient(180deg, #334155 0%, #1e293b 100%);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.15));
    border-radius: 5px;
    box-shadow: 0 2px 0 var(--shadow-color, rgba(0, 0, 0, 0.3)),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary, #f1f5f9);
    white-space: nowrap;
}

/* ==========================================================================
   NAVIGATION TIPS
   ========================================================================== */

.fkh-tips {
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    background: var(--card-bg, rgba(0, 0, 0, 0.15));
}

.fkh-tips-title {
    margin: 0 0 0.5rem 0;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #94a3b8);
}

.fkh-tips ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.25rem 1rem;
}

.fkh-tips li {
    font-size: 0.8125rem;
    color: var(--text-secondary, #94a3b8);
}

.fkh-tips kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    background: linear-gradient(180deg, #334155 0%, #1e293b 100%);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.15));
    border-radius: 3px;
    box-shadow: 0 1px 0 var(--shadow-color, rgba(0, 0, 0, 0.3));
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--text-primary, #f1f5f9);
    white-space: nowrap;
}

/* Light theme tips */
[data-theme="light"] .fkh-tips {
    background: #f1f5f9;
}

[data-theme="light"] .fkh-tips kbd {
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    border-color: #cbd5e1;
    color: #1e293b;
}

/* Responsive tips */
@media (max-width: 640px) {
    .fkh-tips ul {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.fkh-footer {
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    background: var(--card-bg, rgba(0, 0, 0, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.fkh-footer > span {
    color: var(--text-secondary, #94a3b8);
    font-size: 0.8125rem;
}

.fkh-footer-sep {
    opacity: 0.4;
}

.fkh-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.5rem;
    background: transparent;
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.15));
    border-radius: 4px;
    color: var(--text-secondary, #94a3b8);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.fkh-filter-btn:hover {
    background: var(--hover-bg, rgba(255, 255, 255, 0.05));
    border-color: var(--text-secondary, #94a3b8);
}

.fkh-filter-btn--active {
    background: var(--primary, #60a5fa);
    border-color: var(--primary, #60a5fa);
    color: #fff;
}

.fkh-filter-btn--active:hover {
    background: var(--primary-hover, #3b82f6);
    border-color: var(--primary-hover, #3b82f6);
}

.fkh-filter-btn kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 18px;
    padding: 0 4px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 3px;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.625rem;
    font-weight: 500;
    box-shadow: none;
}

.fkh-filter-btn--active kbd {
    background: rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */

.fkh-empty {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    text-align: center;
    color: var(--text-secondary, #94a3b8);
}

.fkh-empty i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.fkh-empty p {
    margin: 0;
    font-size: 1rem;
}

/* ==========================================================================
   NO RESULTS STATE
   ========================================================================== */

.fkh-no-results {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    text-align: center;
    color: var(--text-secondary, #94a3b8);
}

.fkh-no-results i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.fkh-no-results p {
    margin: 0;
    font-size: 0.9rem;
}

/* ==========================================================================
   LIGHT THEME OVERRIDES
   ========================================================================== */

[data-theme="light"] .funky-keyboard-help {
    background: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] .fkh-dialog {
    background: #ffffff;
    border-color: #e2e8f0;
}

[data-theme="light"] .fkh-header {
    border-color: #e2e8f0;
}

[data-theme="light"] .fkh-header h2 {
    color: #1e293b;
}

[data-theme="light"] .fkh-close {
    color: #64748b;
}

[data-theme="light"] .fkh-close:hover {
    background: #f1f5f9;
    color: #1e293b;
}

[data-theme="light"] .fkh-search-input {
    background: #f8fafc;
    border-color: #e2e8f0;
    color: #1e293b;
}

[data-theme="light"] .fkh-search-input::placeholder {
    color: #94a3b8;
}

[data-theme="light"] .fkh-group {
    background: #f8fafc;
    border-color: #e2e8f0;
}

[data-theme="light"] .fkh-group--active {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.05);
}

[data-theme="light"] .fkh-group h3 {
    color: #3b82f6;
}

[data-theme="light"] .fkh-group li {
    border-color: #e2e8f0;
}

[data-theme="light"] .fkh-group li span {
    color: #334155;
}

[data-theme="light"] .fkh-group kbd,
[data-theme="light"] .fkh-footer kbd {
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    border-color: #cbd5e1;
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.8);
    color: #1e293b;
}

[data-theme="light"] .fkh-footer {
    background: #f8fafc;
    border-color: #e2e8f0;
}

[data-theme="light"] .fkh-footer span {
    color: #64748b;
}

[data-theme="light"] .fkh-filter-btn {
    border-color: #e2e8f0;
    color: #64748b;
}

[data-theme="light"] .fkh-filter-btn:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
}

[data-theme="light"] .fkh-filter-btn kbd {
    background: #e2e8f0;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 640px) {
    .fkh-dialog {
        max-width: 100%;
        max-height: 100vh;
        margin: 0;
        border-radius: 0;
        width: 100%;
        height: 100%;
    }

    .fkh-content {
        grid-template-columns: 1fr;
        padding: 0.75rem;
        gap: 0.5rem;
    }

    .fkh-header {
        padding: 0.75rem 1rem;
    }

    .fkh-header h2 {
        font-size: 1rem;
    }

    .fkh-search {
        padding: 0.5rem 1rem;
    }

    .fkh-search-input {
        font-size: 0.875rem;
        padding: 0.5rem 0.75rem 0.5rem 2rem;
    }

    .fkh-search i {
        left: 0.75rem;
    }

    .fkh-group-header {
        font-size: 0.7rem;
        padding: 0.5rem 0.75rem;
    }

    .fkh-shortcut {
        padding: 0.5rem 0.75rem;
    }

    .fkh-shortcut-desc {
        font-size: 0.8rem;
    }

    .fkh-shortcut-keys {
        gap: 0.25rem;
    }

    .fkh-shortcut-keys kbd {
        min-width: 20px;
        height: 20px;
        font-size: 0.65rem;
        padding: 0 3px;
    }

    /* Hide Navigation Tips on mobile - not relevant for touch devices */
    .fkh-tips {
        display: none;
    }

    .fkh-footer {
        padding: 0.5rem 0.75rem;
        gap: 0.5rem;
        flex-wrap: wrap;
        font-size: 0.75rem;
    }

    .fkh-footer kbd {
        min-width: 16px;
        height: 16px;
        font-size: 0.6rem;
    }

    .fkh-footer-sep {
        display: none;
    }
}

/* Tablet breakpoint */
@media (min-width: 641px) and (max-width: 900px) {
    .fkh-dialog {
        max-width: 90%;
        max-height: 85vh;
    }

    .fkh-content {
        grid-template-columns: 1fr;
    }

    /* Hide Navigation Tips on tablets too - keyboard shortcuts less relevant */
    .fkh-tips {
        display: none;
    }
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .funky-keyboard-help,
    .funky-keyboard-help.fkh--closing,
    .fkh-dialog,
    .funky-keyboard-help.fkh--closing .fkh-dialog {
        animation: none;
    }
}

/* ==========================================================================
   PRINT
   ========================================================================== */

@media print {
    .funky-keyboard-help {
        display: none !important;
    }
}

/* ==========================================================================
   FOCUS INDICATORS
   ========================================================================== */

/**
 * Global focus outline
 * Uses :focus-visible to only show for keyboard navigation
 * Uses CSS variables for configurable focus styles
 */
:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
}

/* Remove default outline when using :focus-visible */
:focus:not(:focus-visible) {
    outline: none;
}

/**
 * Enhanced focus for interactive elements
 */
button:focus-visible,
[role="button"]:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

/**
 * Focus within a region
 * Subtle indicator when focus is inside a navigation region
 */
[data-nav-region]:focus-within {
    /* Subtle left border to indicate active region */
    border-left: 3px solid var(--pro-accent-primary, #2f81f7);
}

/* Don't add border to main content region (too wide) */
[data-nav-region="main"]:focus-within {
    border-left: none;
}

/**
 * Tree view focus
 */
.tree-view-row:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset-inset);
    box-shadow: var(--focus-ring-shadow-inset);
    background-color: var(--pro-bg-tertiary, #21262d);
}

.tree-view-row.tree-view-focused {
    background-color: var(--pro-bg-tertiary, #21262d);
}

/**
 * List item focus
 */
.selectable-list-item:focus-visible,
[role="option"]:focus-visible,
[role="treeitem"]:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset-inset);
    box-shadow: var(--focus-ring-shadow-inset);
    background-color: var(--pro-bg-tertiary, #21262d);
}

/**
 * Modal focus trap indicator
 */
.modal-dialog:focus-visible {
    outline: none; /* Dialog itself doesn't need outline */
}

.modal-dialog *:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

/* ==========================================================================
   FOCUS INDICATOR THEME VARIATIONS
   ========================================================================== */

/**
 * Light theme focus - uses --pro-accent-primary which is set per theme
 * Background colors need light-appropriate values
 */
[data-theme="light"] .tree-view-row:focus-visible,
[data-theme="light"] .tree-view-row.tree-view-focused,
[data-theme="light"] .selectable-list-item:focus-visible,
[data-theme="light"] [role="option"]:focus-visible,
[data-theme="light"] [role="treeitem"]:focus-visible {
    background-color: var(--pro-bg-tertiary, #eaeef2);
}

/**
 * Even Funkyer theme focus - neon glow effect
 * Note: Uses CSS variables but adds theme-specific glow
 */
[data-theme="even-funkyer"] {
    --focus-ring-color: #ff00ff;
}

[data-theme="even-funkyer"] button:focus-visible,
[data-theme="even-funkyer"] [role="button"]:focus-visible,
[data-theme="even-funkyer"] a:focus-visible,
[data-theme="even-funkyer"] input:focus-visible,
[data-theme="even-funkyer"] select:focus-visible,
[data-theme="even-funkyer"] textarea:focus-visible,
[data-theme="even-funkyer"] [tabindex]:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow), 0 0 20px rgba(255, 0, 255, 0.4);
}

[data-theme="even-funkyer"] [data-nav-region]:focus-within {
    border-left-color: #ff00ff;
    box-shadow: inset 3px 0 10px rgba(255, 0, 255, 0.3);
}

[data-theme="even-funkyer"] .tree-view-row:focus-visible,
[data-theme="even-funkyer"] .tree-view-row.tree-view-focused,
[data-theme="even-funkyer"] .selectable-list-item:focus-visible,
[data-theme="even-funkyer"] [role="option"]:focus-visible,
[data-theme="even-funkyer"] [role="treeitem"]:focus-visible {
    background-color: rgba(255, 0, 255, 0.15);
}

/* ==========================================================================
   HIGH CONTRAST MODE (OS preference)
   ========================================================================== */

@media (prefers-contrast: high) {
    :root {
        --focus-ring-width: 3px;
        --focus-ring-offset: 3px;
    }

    :root:not([data-focus-style]) {
        --focus-ring-color: currentColor;
    }

    :focus-visible {
        outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
        outline-offset: var(--focus-ring-offset);
        box-shadow: var(--focus-ring-shadow);
    }

    [data-nav-region]:focus-within {
        border-left: 4px solid currentColor !important;
    }
}

/* ==========================================================================
   FOCUS INDICATOR REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    :focus-visible {
        transition: none !important;
    }

    /* Remove glow animations */
    [data-theme="even-funkyer"] button:focus-visible,
    [data-theme="even-funkyer"] [role="button"]:focus-visible,
    [data-theme="even-funkyer"] a:focus-visible,
    [data-theme="even-funkyer"] input:focus-visible,
    [data-theme="even-funkyer"] select:focus-visible,
    [data-theme="even-funkyer"] textarea:focus-visible,
    [data-theme="even-funkyer"] [tabindex]:focus-visible {
        box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.3);
    }
}

/* ==========================================================================
   SKIP LINK ENHANCEMENTS
   ========================================================================== */

/**
 * Skip link visible on focus
 */
.skip-link {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    padding: 0.75rem 1.5rem;
    background: var(--color-accent, #3b82f6);
    color: white;
    font-weight: 600;
    border-radius: 0 0 0.5rem 0.5rem;
    text-decoration: none;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    outline: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   REGION INDICATORS
   ========================================================================== */

/**
 * Visual indicator for current region (optional, for debugging)
 */
.debug-regions [data-nav-region]::before {
    content: attr(data-nav-region);
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border-radius: 0 0 0 0.25rem;
    z-index: 9999;
    pointer-events: none;
}

.debug-regions [data-nav-region]:focus-within::before {
    background: var(--color-accent, #3b82f6);
}

/**
 * Programmatic active region indicator
 * Applied via JavaScript when navigating regions
 */
.nav-region-active {
    /* Subtle highlight for active region */
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    box-shadow: var(--focus-ring-shadow);
}

/* Light outline for dark themes */
[data-theme="dark"] .nav-region-active {
    outline-color: var(--focus-ring-color);
}

[data-theme="even-funkyer"] .nav-region-active {
    outline-color: var(--focus-ring-color);
    box-shadow: var(--focus-ring-shadow), 0 0 15px rgba(255, 0, 255, 0.3);
}

/* ==========================================================================
   KEYBOARD PLAYGROUND DEMO
   ========================================================================== */

/* Status section */
.keyboard-demo__status {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.keyboard-demo__key-display {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  padding: 1.5rem;
  background: var(--pro-bg-tertiary, #1a1a1a);
  border-radius: var(--pro-radius-lg, 12px);
  border: 2px solid var(--pro-border-color, #333);
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

.keyboard-demo__key-display--active {
  border-color: var(--pro-accent-primary, #2f81f7);
  background: var(--pro-accent-primary-muted, rgba(47, 129, 247, 0.1));
}

.keyboard-demo__key-label {
  font-size: 1rem;
  color: var(--pro-text-secondary, #888);
}

.keyboard-demo__key-pressed {
  font-size: 1.5rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  background: linear-gradient(180deg, #334155 0%, #1e293b 100%);
  border: 1px solid var(--pro-border-color, rgba(255, 255, 255, 0.15));
  border-radius: 8px;
  box-shadow: 0 3px 0 var(--pro-shadow-color, rgba(0, 0, 0, 0.3)),
              inset 0 1px 0 rgba(255, 255, 255, 0.1);
  color: var(--pro-text-primary, #e0e0e0);
}

.keyboard-demo__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.keyboard-demo__metric {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1rem;
  background: var(--pro-bg-tertiary, #1a1a1a);
  border-radius: var(--pro-radius-sm, 6px);
  min-width: 100px;
  flex: 1;
}

.keyboard-demo__metric-label {
  font-size: 0.75rem;
  color: var(--pro-text-secondary, #888);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.keyboard-demo__metric-value {
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--pro-font-mono, 'SF Mono', 'Monaco', monospace);
  color: var(--pro-text-primary, #e0e0e0);
}

/* Demo shortcuts list */
.keyboard-demo__shortcuts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
}

.keyboard-demo__shortcut {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--pro-bg-tertiary, #1a1a1a);
  border-radius: var(--pro-radius-sm, 6px);
  border: 1px solid var(--pro-border-color, #333);
}

.keyboard-demo__shortcut kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  background: linear-gradient(180deg, #334155 0%, #1e293b 100%);
  border: 1px solid var(--pro-border-color, rgba(255, 255, 255, 0.15));
  border-radius: 5px;
  box-shadow: 0 2px 0 var(--pro-shadow-color, rgba(0, 0, 0, 0.3)),
              inset 0 1px 0 rgba(255, 255, 255, 0.1);
  font-family: var(--pro-font-mono, 'SF Mono', 'Monaco', monospace);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pro-text-primary, #e0e0e0);
  white-space: nowrap;
}

.keyboard-demo__shortcut span {
  font-size: 0.875rem;
  color: var(--pro-text-secondary, #aaa);
}

/* Scope management */
.keyboard-demo__scope-controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1rem;
}

.keyboard-demo__scope-input {
  flex: 1;
}

.keyboard-demo__scope-input .form-control {
  background: var(--pro-bg-secondary, #252525);
  border-color: var(--pro-border-color, #333);
  color: var(--pro-text-primary, #e0e0e0);
}

.keyboard-demo__scope-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.keyboard-demo__scope-stack {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--pro-bg-tertiary, #1a1a1a);
  border-radius: var(--pro-radius-sm, 6px);
}

.keyboard-demo__scope-stack-label {
  font-size: 0.8125rem;
  color: var(--pro-text-secondary, #888);
  white-space: nowrap;
}

.keyboard-demo__scope-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.keyboard-demo__scope-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--pro-bg-secondary, #252525);
  border: 1px solid var(--pro-border-color, #333);
  border-radius: var(--pro-radius-xs, 4px);
  color: var(--pro-text-secondary, #aaa);
}

.keyboard-demo__scope-badge--active {
  background: var(--pro-accent-primary-muted, rgba(47, 129, 247, 0.15));
  border-color: var(--pro-accent-primary, #2f81f7);
  color: var(--pro-accent-primary, #2f81f7);
}

/* Register form */
.keyboard-demo__register-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--pro-border-color, #333);
}

.keyboard-demo__register-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}

.keyboard-demo__register-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  flex: 1;
  min-width: 100px;
}

.keyboard-demo__register-field--wide {
  flex: 2;
  min-width: 200px;
}

.keyboard-demo__register-field label {
  font-size: 0.75rem;
  color: var(--pro-text-secondary, #888);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.keyboard-demo__register-field .form-control {
  background: var(--pro-bg-secondary, #252525);
  border-color: var(--pro-border-color, #333);
  color: var(--pro-text-primary, #e0e0e0);
}

.keyboard-demo__register-modifiers {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  flex: 1;
}

.keyboard-demo__modifier {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--pro-text-secondary, #aaa);
  cursor: pointer;
}

.keyboard-demo__modifier input {
  cursor: pointer;
}

.keyboard-demo__modifier span {
  white-space: nowrap;
}

/* Registered list */
.keyboard-demo__registered-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.keyboard-demo__registered-empty {
  padding: 1.5rem;
  text-align: center;
  color: var(--pro-text-secondary, #888);
  font-size: 0.875rem;
}

.keyboard-demo__registered-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.875rem;
  background: var(--pro-bg-tertiary, #1a1a1a);
  border-radius: var(--pro-radius-sm, 6px);
  border: 1px solid var(--pro-border-color, #333);
}

.keyboard-demo__registered-item kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 8px;
  background: linear-gradient(180deg, #334155 0%, #1e293b 100%);
  border: 1px solid var(--pro-border-color, rgba(255, 255, 255, 0.15));
  border-radius: 5px;
  box-shadow: 0 2px 0 var(--pro-shadow-color, rgba(0, 0, 0, 0.3));
  font-family: var(--pro-font-mono, 'SF Mono', 'Monaco', monospace);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pro-text-primary, #e0e0e0);
  white-space: nowrap;
}

.keyboard-demo__registered-desc {
  flex: 1;
  font-size: 0.875rem;
  color: var(--pro-text-primary, #e0e0e0);
}

.keyboard-demo__registered-scope {
  font-size: 0.75rem;
  color: var(--pro-text-secondary, #888);
  padding: 0.125rem 0.5rem;
  background: var(--pro-bg-secondary, #252525);
  border-radius: var(--pro-radius-xs, 4px);
}

.keyboard-demo__unregister-btn {
  opacity: 0.5;
  transition: opacity 0.15s ease;
}

.keyboard-demo__registered-item:hover .keyboard-demo__unregister-btn {
  opacity: 1;
}

/* Help controls */
.keyboard-demo__help-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Event log */
.keyboard-demo__log {
  margin: 0;
  padding: 1rem;
  background: var(--pro-bg-tertiary, #1a1a1a);
  border: 1px solid var(--pro-border-color, #333);
  border-radius: var(--pro-radius-sm, 6px);
  font-family: var(--pro-font-mono, 'SF Mono', 'Monaco', monospace);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--pro-text-secondary, #aaa);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 250px;
  overflow-y: auto;
}

/* Light theme */
[data-theme="light"] .keyboard-demo__key-display {
  background: var(--pro-bg-tertiary, #f1f3f5);
  border-color: var(--pro-border-color, #dee2e6);
}

[data-theme="light"] .keyboard-demo__key-pressed {
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  border-color: #cbd5e1;
  color: #1e293b;
}

[data-theme="light"] .keyboard-demo__metric,
[data-theme="light"] .keyboard-demo__shortcut,
[data-theme="light"] .keyboard-demo__scope-stack,
[data-theme="light"] .keyboard-demo__registered-item {
  background: var(--pro-bg-tertiary, #f1f3f5);
  border-color: var(--pro-border-color, #dee2e6);
}

[data-theme="light"] .keyboard-demo__shortcut kbd,
[data-theme="light"] .keyboard-demo__registered-item kbd {
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  border-color: #cbd5e1;
  color: #1e293b;
}

[data-theme="light"] .keyboard-demo__scope-input .form-control,
[data-theme="light"] .keyboard-demo__register-field .form-control {
  background: var(--pro-bg-secondary, #fff);
  border-color: var(--pro-border-color, #dee2e6);
  color: var(--pro-text-primary, #212529);
}

[data-theme="light"] .keyboard-demo__log {
  background: var(--pro-bg-tertiary, #f1f3f5);
  border-color: var(--pro-border-color, #dee2e6);
}

/* Responsive */
@media (max-width: 768px) {
  .keyboard-demo__shortcuts {
    grid-template-columns: 1fr;
  }

  .keyboard-demo__scope-buttons {
    flex-direction: column;
  }

  .keyboard-demo__scope-buttons .btn {
    width: 100%;
  }

  .keyboard-demo__register-row {
    flex-direction: column;
  }

  .keyboard-demo__register-field,
  .keyboard-demo__register-field--wide {
    width: 100%;
    min-width: 0;
  }

  .keyboard-demo__register-modifiers {
    width: 100%;
  }

  .keyboard-demo__help-controls {
    flex-direction: column;
  }

  .keyboard-demo__help-controls .btn {
    width: 100%;
  }
}