/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - High Contrast Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #868e96;
    --accent-primary: #007bff;
    --accent-secondary: #28a745;
    --accent-danger: #dc3545;
    --accent-warning: #ffc107;
    --border-color: #dee2e6;
    --border-focus: #007bff;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 8px rgba(0,0,0,0.15);
    
    /* High Contrast Override */
    --hc-bg-primary: #000000;
    --hc-bg-secondary: #1a1a1a;
    --hc-bg-tertiary: #333333;
    --hc-text-primary: #ffffff;
    --hc-text-secondary: #cccccc;
    --hc-accent-primary: #00bfff;
    --hc-accent-secondary: #00ff00;
    --hc-border-color: #666666;
    --hc-border-focus: #00bfff;
}

body {
    font-family: 'Noto Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: all 0.3s ease;
}

body.high-contrast {
    --bg-primary: var(--hc-bg-primary);
    --bg-secondary: var(--hc-bg-secondary);
    --bg-tertiary: var(--hc-bg-tertiary);
    --text-primary: var(--hc-text-primary);
    --text-secondary: var(--hc-text-secondary);
    --accent-primary: var(--hc-accent-primary);
    --accent-secondary: var(--hc-accent-secondary);
    --border-color: var(--hc-border-color);
    --border-focus: var(--hc-border-focus);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

/* Banner */
.banner {
    background-color: var(--accent-primary);
    color: white;
    text-align: center;
    padding: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.status-chip {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.status-chip.online {
    background-color: var(--accent-secondary);
    color: white;
    border-color: var(--accent-secondary);
}

.status-chip.offline {
    background-color: var(--text-muted);
    color: white;
    border-color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
}

/* Navigation */
nav {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.tabs {
    display: flex;
    padding: 0 2rem;
}

.tab {
    background: none;
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
}

.tab:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.tab.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
    background-color: var(--bg-primary);
}

.tab:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: -2px;
}

/* Main Content */
main {
    min-height: calc(100vh - 200px);
    padding: 2rem;
}

.panel {
    display: none;
}

.panel.active {
    display: block;
}

/* Clerk View */
.clerk-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.controls-panel {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    height: fit-content;
}

.control-group {
    margin-bottom: 2rem;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.control-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
    margin-bottom: 0.5rem;
}

.control-button:hover:not(:disabled) {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-primary);
}

.control-button:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

.control-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.control-button[aria-pressed="true"] {
    background-color: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.mic-button {
    font-size: 1rem;
    padding: 1rem;
}

.language-buttons {
    display: flex;
    gap: 0.5rem;
}

.lang-button {
    flex: 1;
    padding: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.toggle-button {
    justify-content: center;
}

.quick-phrases {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quick-phrase {
    font-size: 0.85rem;
    padding: 0.5rem;
}

.demo-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.export-button {
    background-color: var(--accent-danger);
    color: white;
    border-color: var(--accent-danger);
}

.export-button:not(:disabled):hover {
    background-color: #c82333;
    border-color: #bd2130;
}

/* Transcript Panel */
.transcript-panel {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.transcript-area {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    min-height: 200px;
}

.transcript-line {
    margin-bottom: 1rem;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 4px;
    border-left: 4px solid var(--accent-primary);
}

.transcript-line:last-child {
    margin-bottom: 0;
}

.line-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 0.25rem;
}

.line-text {
    font-size: 1rem;
    line-height: 1.4;
}

.history-section h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.history-area {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    max-height: 300px;
    overflow-y: auto;
}

.history-line {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.history-line:last-child {
    border-bottom: none;
}

/* Customer View */
.customer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.customer-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.font-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.font-controls label {
    font-weight: 500;
    color: var(--text-primary);
}

#fontSizeSlider {
    width: 200px;
}

#fontSizeValue {
    font-weight: 600;
    color: var(--accent-primary);
    min-width: 50px;
}

.customer-buttons {
    display: flex;
    gap: 1rem;
}

.big-text-area {
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.big-text-line {
    margin-bottom: 2rem;
    text-align: center;
}

.big-text-line:last-child {
    margin-bottom: 0;
}

.big-text-label {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.big-text-content {
    font-size: 4.5rem; /* 72pt */
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    font-family: 'Noto Sans', 'Noto Sans Armenian', sans-serif;
}

/* Settings */
.settings-container {
    max-width: 800px;
    margin: 0 auto;
}

.setting-group {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.setting-group h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.setting-item {
    margin-bottom: 1rem;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    cursor: pointer;
}

.setting-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
}

.shortcuts-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background-color: var(--bg-primary);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

kbd {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-family: monospace;
    font-size: 0.85rem;
    font-weight: 600;
    min-width: 2rem;
    text-align: center;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal[aria-hidden="false"] {
    display: flex;
}

.modal-content {
    background-color: var(--bg-primary);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.modal-content p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.control-button.primary {
    background-color: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.control-button.primary:hover {
    background-color: #0056b3;
    border-color: #004085;
}

/* Footer */
footer {
    text-align: center;
    padding: 1rem 2rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .clerk-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .customer-controls {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .customer-buttons {
        justify-content: center;
    }
    
    .big-text-content {
        font-size: 3rem; /* Smaller on mobile */
    }
    
    .tabs {
        padding: 0 1rem;
    }
    
    .tab {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    main {
        padding: 1rem;
    }
    
    .demo-controls {
        grid-template-columns: 1fr;
    }
    
    .shortcuts-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .big-text-content {
        font-size: 2.5rem;
    }
    
    .big-text-area {
        padding: 1rem;
        min-height: 300px;
    }
    
    .modal-content {
        padding: 1.5rem;
        width: 95%;
    }
    
    .modal-buttons {
        flex-direction: column;
    }
}

/* Focus and Accessibility */
*:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

/* High contrast mode adjustments */
body.high-contrast .big-text-content {
    text-shadow: 1px 1px 2px rgba(0,0,0,0.8);
}

body.high-contrast .transcript-line {
    border-left-color: var(--accent-primary);
}

body.high-contrast .control-button[aria-pressed="true"] {
    box-shadow: 0 0 0 2px var(--border-focus);
}

/* Enhanced Animations */
.transcript-line,
.history-line,
.big-text-line {
    animation: slideInUp 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Animation classes for JavaScript triggers */
.animating {
    animation: slideInUp 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.transcript-line.animating,
.big-text-line.animating {
    animation: slideInUp 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Button hover animations */
.control-button {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.control-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.control-button:hover::before {
    left: 100%;
}

.control-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.control-button:active {
    transform: translateY(0);
    transition: transform 0.1s;
}

/* Tab animations */
.tab {
    position: relative;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.tab::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--accent-primary);
    transition: width 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.tab.active::after {
    width: 100%;
}

.tab:hover {
    transform: translateY(-1px);
}

/* Status chip pulse animation */
.status-chip.online .status-dot {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(40, 167, 69, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(40, 167, 69, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(40, 167, 69, 0);
    }
}

/* Panel transition animations */
.panel {
    animation: fadeInPanel 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes fadeInPanel {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Big text typing animation */
.big-text-content {
    animation: typewriter 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes typewriter {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Language button animations */
.lang-button {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
}

.lang-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary));
    opacity: 0;
    border-radius: inherit;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.lang-button.active::before {
    opacity: 0.1;
}

.lang-button:hover {
    transform: scale(1.05);
}

.lang-button.active {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,123,255,0.3);
}

/* Quick phrase button animations */
.quick-phrase {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.quick-phrase:hover {
    transform: translateX(5px);
    background-color: var(--accent-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(0,123,255,0.3);
}

.quick-phrase:active {
    transform: translateX(2px) scale(0.98);
}

/* Font size slider animation */
#fontSizeSlider {
    transition: all 0.3s ease;
}

#fontSizeSlider:hover {
    transform: scale(1.02);
}

#fontSizeValue {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: inline-block;
}

#fontSizeValue:hover {
    transform: scale(1.1);
    color: var(--accent-primary);
}

/* Modal animations */
.modal {
    animation: modalFadeIn 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.modal-content {
    animation: modalSlideIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* History line animations */
.history-line {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border-left: 3px solid transparent;
}

.history-line:hover {
    transform: translateX(5px);
    border-left-color: var(--accent-primary);
    background-color: var(--bg-tertiary);
}

/* Transcript area animations */
.transcript-area {
    transition: all 0.3s ease;
}

.transcript-area:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-1px);
}

/* Big text area animations */
.big-text-area {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.big-text-area:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}

/* Control group animations */
.control-group {
    transition: all 0.3s ease;
}

.control-group:hover h3 {
    color: var(--accent-primary);
    transform: translateX(5px);
}

/* Settings toggle animations */
.setting-item input[type="checkbox"] {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.setting-item input[type="checkbox"]:checked {
    transform: scale(1.1);
}

.setting-item label {
    transition: all 0.3s ease;
}

.setting-item label:hover {
    color: var(--accent-primary);
    transform: translateX(3px);
}

/* Shortcut key animations */
kbd {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.shortcut-item:hover kbd {
    transform: scale(1.1);
    background-color: var(--accent-primary);
    color: white;
    box-shadow: 0 2px 4px rgba(0,123,255,0.3);
}

/* Loading animation for demo */
@keyframes loadingDots {
    0%, 20% {
        color: transparent;
        text-shadow: 0.25em 0 0 transparent, 0.5em 0 0 transparent;
    }
    40% {
        color: var(--text-primary);
        text-shadow: 0.25em 0 0 transparent, 0.5em 0 0 transparent;
    }
    60% {
        text-shadow: 0.25em 0 0 var(--text-primary), 0.5em 0 0 transparent;
    }
    80%, 100% {
        text-shadow: 0.25em 0 0 var(--text-primary), 0.5em 0 0 var(--text-primary);
    }
}

.loading::after {
    content: '...';
    animation: loadingDots 1.5s infinite;
}

/* Smooth transitions for all interactive elements */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* Focus ring animations */
*:focus-visible {
    animation: focusPulse 0.6s ease-in-out;
}

@keyframes focusPulse {
    0% {
        outline-color: transparent;
    }
    50% {
        outline-color: var(--border-focus);
    }
    100% {
        outline-color: var(--border-focus);
    }
}

/* Scrollbar animations */
.history-area::-webkit-scrollbar-thumb {
    transition: background 0.3s ease;
}

.history-area::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* High contrast mode animations */
body.high-contrast .control-button:hover {
    box-shadow: 0 0 0 2px var(--border-focus);
}

body.high-contrast .big-text-content {
    animation: highContrastGlow 2s ease-in-out infinite alternate;
}

@keyframes highContrastGlow {
    from {
        text-shadow: 0 0 5px var(--accent-primary);
    }
    to {
        text-shadow: 0 0 20px var(--accent-primary), 0 0 30px var(--accent-primary);
    }
}

/* Micro-interactions for better UX */
.control-button[aria-pressed="true"] {
    animation: buttonPress 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes buttonPress {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.95);
    }
    100% {
        transform: scale(1);
    }
}

/* Smooth font size transitions */
.big-text-content {
    transition: font-size 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Additional micro-animations */
.control-button svg {
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.control-button:hover svg {
    transform: scale(1.1);
}

.control-button:active svg {
    transform: scale(0.95);
}

/* Tab indicator animation */
.tab.active {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* Status chip animations */
.status-chip {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.status-chip:hover {
    transform: scale(1.05);
}

/* Language button ripple effect */
.lang-button {
    position: relative;
    overflow: hidden;
}

.lang-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.lang-button:active::after {
    width: 300px;
    height: 300px;
}

/* Quick phrase button special effects */
.quick-phrase {
    position: relative;
    overflow: hidden;
}

.quick-phrase::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.quick-phrase:hover::before {
    left: 100%;
}

/* Font slider track animation */
#fontSizeSlider {
    background: linear-gradient(to right, var(--accent-primary) 0%, var(--accent-primary) 0%, var(--border-color) 0%, var(--border-color) 100%);
    transition: background 0.3s ease;
}

#fontSizeSlider::-webkit-slider-thumb {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

#fontSizeSlider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgba(0, 123, 255, 0.2);
}

/* History line special effects */
.history-line {
    position: relative;
}

.history-line::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transition: width 0.3s ease;
}

.history-line:hover::before {
    width: 4px;
}

/* Modal backdrop animation */
.modal {
    backdrop-filter: blur(4px);
    transition: backdrop-filter 0.3s ease;
}

/* Settings checkbox animation */
.setting-item input[type="checkbox"] {
    appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    position: relative;
    cursor: pointer;
}

.setting-item input[type="checkbox"]:checked {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.setting-item input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 12px;
    animation: checkmark 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

@keyframes checkmark {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* Demo running pulse effect */
.demo-running .transcript-area {
    position: relative;
}

.demo-running .transcript-area::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
    border-radius: inherit;
    z-index: -1;
    animation: borderGlow 2s linear infinite;
}

@keyframes borderGlow {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 200% 50%;
    }
}

/* Toast notification styles */
.toast {
    animation: slideInFromTop 0.3s ease-out;
}

.toast-error {
    background: linear-gradient(135deg, #dc3545, #c82333);
}

.toast-success {
    background: linear-gradient(135deg, #28a745, #1e7e34);
}

.toast-info {
    background: linear-gradient(135deg, #007bff, #0056b3);
}

/* Loading state animations */
.loading {
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced focus states */
.control-button:focus-visible,
.lang-button:focus-visible,
.tab:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
    animation: focusGlow 0.6s ease-in-out;
}

@keyframes focusGlow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 123, 255, 0.4);
    }
    50% {
        box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.4);
    }
}

/* Demo running indicator */
.demo-running .transcript-area {
    animation: demoPulse 2s ease-in-out infinite;
}

@keyframes demoPulse {
    0%, 100% {
        border-color: var(--border-color);
    }
    50% {
        border-color: var(--accent-primary);
    }
}

/* Success/Error message animations */
@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideOutToTop {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* Scrollbar styling */
.history-area::-webkit-scrollbar {
    width: 8px;
}

.history-area::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

.history-area::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.history-area::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}