/* HospitalDMD TV Frontend - Main Styles */

/* Custom Font Declarations - Univia Pro (using OTF files) */
@font-face {
    font-family: 'Univia Pro';
    src: url('../fonts/UniviaPro-Light.otf') format('opentype');
    font-weight: 300;
    font-style: normal;
    font-display: swap; /* Improves loading performance */
}

@font-face {
    font-family: 'Univia Pro';
    src: url('../fonts/UniviaPro-LightItalic.otf') format('opentype');
    font-weight: 300;
    font-style: italic;
    font-display: swap;
}

@font-face {
    font-family: 'Univia Pro';
    src: url('../fonts/UniviaPro-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Univia Pro';
    src: url('../fonts/UniviaPro-Book.otf') format('opentype');
    font-weight: 450;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Univia Pro';
    src: url('../fonts/UniviaPro-Medium.otf') format('opentype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Univia Pro';
    src: url('../fonts/UniviaPro-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

/* CSS Variables for consistent theming */
:root {
    --primary-color: #1e40af;
    --secondary-color: #3b82f6;
    --accent-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --success-color: #22c55e;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --border-color: #475569;
    --shadow-color: rgba(0, 0, 0, 0.3);
    
    /* Dynamic sphere colors for microphone button */
    --sphere-primary-color: #4fc3f7; /* Default idle color */
    --sphere-secondary-color: #01579b;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    overflow: hidden; /* TV app should not scroll */
    transition: font-family 0.3s ease; /* Smooth transition when fonts load */
}

/* Apply Univia Pro after fonts are confirmed loaded */
body.fonts-loaded {
    font-family: 'Univia Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

/* Force Univia Pro for fallback cases */
body.fonts-fallback {
    font-family: 'Univia Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

/* Ensure text is always visible during font loading */
body {
    font-display: swap;
}

/* Font loading states for better UX */
body:not(.fonts-loaded):not(.fonts-fallback) {
    /* Show system fonts immediately while custom fonts load */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

/* Critical text elements that should use Univia Pro immediately */
.app-title,
.welcome-text,
.subtitle-text {
    font-family: 'Univia Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif !important;
}

/* App Container */
.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* Header Styles */
.app-header {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    /*padding: var(--spacing-4) var(--spacing-8);*/
    box-shadow: 0 2px 10px var(--shadow-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

/* Dev Toggle Button */
.dev-toggle-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 100px;
}

.dev-toggle-btn:hover {
    background: var(--accent-color);
    color: var(--bg-primary);
    transform: translateY(-1px);
}

.dev-toggle-btn.focused {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    background: var(--accent-color);
    color: var(--bg-primary);
}

.dev-toggle-btn.hidden-mode {
    background: var(--error-color);
    border-color: var(--error-color);
    color: white;
}

.dev-toggle-btn.hidden-mode:hover,
.dev-toggle-btn.hidden-mode.focused {
    background: var(--error-color);
    opacity: 0.8;
}

/* Mode Toggle Button (Translation) */
.mode-toggle-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-right: var(--spacing-2);
}

.mode-toggle-btn:hover,
.mode-toggle-btn.active {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
    transform: translateY(-1px);
}

.mode-toggle-btn.focused {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
    background: var(--secondary-color);
    color: white;
}

/* Translation Interface */
.translation-interface {
    grid-column: 1 / -1; /* Span full width of the grid */
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0; /* Remove padding to let container fill */
}

.translation-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-6);
    width: 100%;
    height: 100%;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
}

/* Translation Controls (Top Bar) */
.translation-controls {
    display: flex;
    align-items: center;
    padding: 0;
    position: relative;
    height: 100px;
    width: 100%;
}

.language-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    flex: 1;
}

/* Audio controls row (play button + autoplay toggle) */
.language-panel .audio-controls-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.language-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    background: var(--bg-tertiary);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 160px;
    justify-content: center;
}

.language-selector:hover,
.language-selector:focus {
    border-color: var(--secondary-color);
    background: rgba(59, 130, 246, 0.1);
    outline: none;
}

.flag-icon {
    font-size: 1.5rem;
}

.language-name {
    font-weight: 600;
    color: var(--text-primary);
}

.audio-playback-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: var(--spacing-1) var(--spacing-3);
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.audio-playback-controls:hover,
.audio-playback-controls:focus,
.audio-playback-controls.focused {
    background: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
    outline: none;
}

.play-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    display: flex;
}

.audio-playback-controls:hover .play-btn,
.audio-playback-controls:focus .play-btn,
.audio-playback-controls.focused .play-btn {
    color: var(--bg-primary);
}

/* Autoplay Toggle Switch */
.autoplay-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: var(--spacing-2) var(--spacing-3);
    transition: all 0.3s ease;
    user-select: none;
}

.autoplay-toggle:hover,
.autoplay-toggle:focus,
.autoplay-toggle.focused {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
    outline: none;
}

.autoplay-toggle input {
    display: none;
}

.toggle-slider {
    width: 40px;
    height: 22px;
    background: var(--text-muted);
    border-radius: 11px;
    position: relative;
    transition: background 0.2s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.2s;
}

.autoplay-toggle input:checked + .toggle-slider {
    background: var(--secondary-color);
}

.autoplay-toggle input:checked + .toggle-slider::before {
    transform: translateX(18px);
}

.toggle-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-secondary);
    user-select: none;
}

.autoplay-toggle input:checked ~ .toggle-label {
    color: var(--text-primary);
}

.autoplay-toggle:hover .toggle-label,
.autoplay-toggle:focus .toggle-label,
.autoplay-toggle.focused .toggle-label {
    color: var(--bg-primary);
}

.mini-waveform {
    font-family: monospace;
    color: var(--text-muted);
    font-size: 0.7rem;
    letter-spacing: 1px;
}

/* Central Mic Button */
.central-mic-container {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.mic-btn-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 4px solid var(--secondary-color);
    color: white;
    font-size: 2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.mic-btn-large:hover,
.mic-btn-large:focus {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
    outline: none;
}

.mic-btn-large.active {
    background: var(--error-color);
    border-color: var(--error-color);
    animation: pulse-ring 2s infinite;
}

/* Split Text Display Area */
.translation-display-area {
    flex: 1;
    display: flex;
    position: relative;
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    margin-top: var(--spacing-4);
}

.text-panel {
    flex: 1;
    padding: var(--spacing-6);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    justify-content: center; /* Center text vertically like in the image */
    transition: background-color 0.3s ease, border-color 0.3s ease;
    position: relative;
}

/* Translation Mode States */
.text-panel.active-input {
    background-color: rgba(30, 64, 175, 0.3); /* Blue tint */
    border: 2px solid var(--primary-color);
}

.text-panel.left-panel.active-input {
    border-radius: 12px 0px 0px 12px;
}

.text-panel.right-panel.active-input {
    border-radius: 0px 12px 12px 0px;
}

.text-panel.passive-output {
    background-color: rgba(30, 41, 59, 0.8); /* Dark Grey */
    color: var(--text-secondary);
}

.text-panel.error {
    border: 2px solid var(--error-color);
}

/* Audio Loading Indicator */
.audio-loading-indicator {
    display: none;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.audio-loading-indicator.visible {
    display: flex;
}

.loading-spinner {
    width: 10px;
    height: 10px;
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-top-color: var(--secondary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.transcription-text.partial,
.translation-text.partial {
    opacity: 0.7;
    font-style: italic;
}

.transcription-text,
.translation-text {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    color: var(--text-primary);
    white-space: normal;
}

.transcription-text {
    text-align: center;
}

.translation-text {
    text-align: center;
    color: var(--text-secondary); /* Slightly different color for distinction */
}

/* Vertical Divider */
.vertical-divider {
    width: 2px;
    background: var(--border-color);
    opacity: 0.5;
    margin: var(--spacing-4) 0;
}

@keyframes pulse-ring {
    0% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(239, 68, 68, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
    }
}

.toggle-icon {
    font-size: var(--font-size-base);
}

.toggle-text {
    font-weight: 600;
}

.logo {
    height: 50px;
    width: auto;
}

.app-title {
    font-size: var(--font-size-3xl);
    font-weight: bold;
    color: var(--accent-color);
    text-shadow: 2px 2px 4px var(--shadow-color);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    margin: 0;
    white-space: nowrap;
}

.connection-status {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--spacing-1);
    font-size: var(--font-size-sm);
}

.connection-status .status-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.server-info {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-top: var(--spacing-1);
}

.server-label {
    margin-right: var(--spacing-1);
}

.server-url {
    font-weight: bold;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--error-color);
    animation: pulse 2s infinite;
}

.status-indicator.connected {
    background: var(--success-color);
    animation: none;
}

/* Main Content */
.main-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr auto;
    gap: var(--spacing-6);
    padding: var(--spacing-6);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    transition: grid-template-columns 0.5s ease;
}

/* Main Content with hidden conversation */
.main-content.conversation-hidden {
    grid-template-columns: 1fr;
}

/* Hide conversation display when toggled */
.conversation-display.hidden {
    display: none !important;
}

/* Expand speech interface when conversation is hidden */
.main-content.conversation-hidden .speech-interface {
    grid-column: 1;
    max-width: 100%;
}

/* Speech Interface */
.speech-interface {
    grid-column: 1;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 20px;
    border: 2px solid var(--border-color);
    padding: var(--spacing-8);
    box-shadow: 0 8px 32px var(--shadow-color);
    position: relative; /* For absolute positioning of dev button */
}

.dev-console-btn {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    opacity: 0.5;
    z-index: 100;
}

.dev-console-btn:hover,
.dev-console-btn:focus {
    opacity: 1;
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
    color: var(--text-primary);
    outline: none;
}

.dev-console-btn.active {
    opacity: 1;
    background: rgba(0, 255, 0, 0.1);
    border-color: #00ff00;
    color: #00ff00;
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.2);
}

.console-icon {
    font-family: monospace;
    font-weight: bold;
    font-size: 14px;
}

.microphone-container {
    display: flex;
    flex-direction: column;
    align-items: center;

}

/* Top Status Text Area */
.status-text-area {
    text-align: center;
    margin-bottom: var(--spacing-4);
}

.welcome-text {
    font-size: var(--font-size-2xl);
    font-weight: bold;
    color: var(--text-primary);
    margin: 0;
    text-shadow: 2px 2px 4px var(--shadow-color);
}

/* Example Questions Navigation */
.example-questions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    justify-content: center;
    max-width: 800px;
    margin-bottom: var(--spacing-6);
}

.question-button {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs); /* Made smaller */
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.question-button:hover,
.question-button.active,
.question-button.focused {
    background: var(--accent-color);
    color: var(--bg-primary);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.question-button:active {
    transform: translateY(0);
}

.microphone-button {
    opacity: 0.7;
    width: 370px;
    height: 370px;
    margin: 70px 0;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.8s ease;
    border: 2px solid transparent;
    box-shadow: none !important;
    background: transparent;
    overflow: visible;
    position: relative;
}

/* Remote Control Focus Styles */
.focusable.focused {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* Override outline for elements that have their own focus styling */
.question-button.focused,
.microphone-button.focused {
    outline: none;
}

/* Button press animation for remote control */
.focusable.button-press {
    transform: scale(0.95);
}

.question-button.button-press {
    transform: translateY(-2px) scale(0.95);
}

.microphone-button.button-press {
    transform: scale(0.98);
}

/* Focused state for microphone button */
.microphone-button.focused,
.microphone-button.focusable.focused {
    border: 2px solid var(--sphere-secondary-color) !important;
    border-color: var(--sphere-secondary-color) !important;
    background: radial-gradient(circle, transparent 50%, var(--sphere-primary-color) 100%);
}

#ai-sphere {
    opacity: 1;
    pointer-events: none;
}

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

.microphone-button.listening { 
    transform: scale(1.02);
}

.microphone-button.processing { 
    transform: scale(0.98);
}

.mic-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-2);
}

/* Bottom Subtitle Area */
.subtitle-area {
    text-align: center; /* Default center, will be overridden by JS for talking state */
    margin-top: var(--spacing-4);
    min-height: 70px; /* slightly taller for two lines */
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    background: transparent; /* Remove white background */
    padding: 8px 16px; /* Increased horizontal padding */
    border-radius: 12px;
    width: 100%;
    max-width: 600px; /* Normal mode max width */
    margin-left: auto;
    margin-right: auto;
    transition: max-width 0.5s ease, padding 0.5s ease;
}

/* Expanded subtitle area when conversation is hidden */
.main-content.conversation-hidden .subtitle-area {
    max-width: 1000px; /* Expanded mode - much wider */
    padding: 8px 32px; /* More horizontal padding in expanded mode */
}

.subtitle-text {
    font-size: var(--font-size-base); /* Use CSS variable for consistent sizing */
    font-weight: 600;
    color: var(--text-primary); /* White text */
    letter-spacing: 0.5px;
    text-transform: none;
    line-height: 1.6; /* Slightly better line height for readability */
    width: 100%;
    max-width: 100%; /* allow full area usage */
    display: block;
    overflow: hidden;
    transition: line-height 0.5s ease;
}

/* Expanded subtitle text when conversation is hidden */
.main-content.conversation-hidden .subtitle-text {
    line-height: 1.5; /* Better spacing in expanded mode */
}

.subtitle-text span.word { 
    opacity: 0; 
    animation: wordFade 0.45s ease forwards; 
}

.subtitle-line { 
    display: block;
    white-space: nowrap; /* prevent internal wrapping so JS controls breaks */
    width: 100%;
}

@keyframes wordFade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* Remove old typewriter caret */
.subtitle-text.typing { border-right: none; animation: none; }

/* Legacy mic-status styling (for compatibility) */
.mic-status {
    font-size: var(--font-size-lg);
    text-align: center;
    font-weight: bold;
    color: var(--text-primary);
    margin-top: var(--spacing-4);
    position: relative;
    white-space: nowrap;
    z-index: 10;
}

/* Audio Visualizer */
.audio-visualizer {
    display: flex;
    gap: var(--spacing-1);
    align-items: end;
    height: 60px;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.audio-visualizer.active {
    opacity: 1;
}

.wave-bar {
    width: 8px;
    background: var(--accent-color);
    border-radius: 4px;
    animation: wave 1s ease-in-out infinite;
}

.wave-bar:nth-child(2) { animation-delay: 0.1s; }
.wave-bar:nth-child(3) { animation-delay: 0.2s; }
.wave-bar:nth-child(4) { animation-delay: 0.3s; }
.wave-bar:nth-child(5) { animation-delay: 0.4s; }

/* Conversation Display */
.conversation-display {
    grid-column: 2;
    grid-row: 1;
    background: var(--bg-secondary);
    border-radius: 20px;
    border: 2px solid var(--border-color);
    padding: var(--spacing-6);
    box-shadow: 0 8px 32px var(--shadow-color);
    display: flex;
    flex-direction: column;
}

.conversation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-3);
    border-bottom: 1px solid var(--border-color);
}

.conversation-header h2 {
    font-size: var(--font-size-xl);
    color: var(--accent-color);
}

.clear-conversation {
    background: var(--error-color);
    color: white;
    border: none;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 8px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all 0.8s ease;
}

.clear-conversation:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-2);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.welcome-message {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: var(--spacing-6);
}

/* Response Display */
.response-display {
    grid-column: 1 / -1;
    grid-row: 2;
    background: var(--bg-tertiary);
    border-radius: 15px;
    border: 2px solid var(--accent-color);
    padding: var(--spacing-6);
    box-shadow: 0 8px 32px var(--shadow-color);
    animation: slideUp 0.8s ease;
}

.response-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.response-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-primary);
    text-align: center;
}

.response-audio-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-4);
}

.response-audio-controls button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: 10px;
    cursor: pointer;
    font-size: var(--font-size-base);
    transition: all 0.8s ease;
}

.response-audio-controls button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.audio-progress {
    flex: 1;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin: 0 var(--spacing-4);
}

.progress-bar {
    height: 100%;
    background: var(--accent-color);
    width: 0%;
    transition: width 0.1s ease;
}

/* Footer */
.app-footer {
    background: var(--bg-secondary);
    border-top: 2px solid var(--border-color);
    padding: var(--spacing-4) var(--spacing-8);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.remote-instructions {
    display: flex;
    gap: var(--spacing-6);
    font-size: var(--font-size-sm);
}

.remote-key {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: bold;
}

.app-info {
    display: flex;
    gap: var(--spacing-3);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.separator {
    color: var(--border-color);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-4);
}

.loading-text {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    text-align: center;
}

/* Error Modal */
.error-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1001;
    backdrop-filter: blur(8px);
}

.error-content {
    background: var(--bg-secondary);
    border: 2px solid var(--error-color);
    border-radius: 15px;
    padding: var(--spacing-8);
    max-width: 500px;
    text-align: center;
    box-shadow: 0 16px 64px var(--shadow-color);
}

.error-content h3 {
    color: var(--error-color);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-4);
}

.error-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.error-close {
    background: var(--error-color);
    color: white;
    border: none;
    padding: var(--spacing-3) var(--spacing-8);
    border-radius: 10px;
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: bold;
    transition: all 0.8s ease;
}

.error-close:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes pulse-mic {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes wave {
    0%, 100% { height: 20px; }
    50% { height: 40px; }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Responsive Design for Different TV Sizes */
@media (max-width: 1366px) {
    .main-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
    }
    
    .conversation-display {
        grid-column: 1;
        grid-row: 2;
    }
    
    .response-display {
        grid-column: 1;
        grid-row: 3;
    }
}

@media (max-height: 768px) {
    .microphone-button {
        width: 150px;
        height: 150px;
    }
    
    .mic-icon {
        font-size: var(--font-size-3xl);
    }
}

/* Chat Message Styling */
.conversation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.conversation-controls {
    display: flex;
    gap: var(--spacing-2);
}

.conversation-controls button {
    padding: var(--spacing-2) var(--spacing-4);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all 0.8s ease;
}

.conversation-controls button:hover {
    background: var(--bg-tertiary);
    border-color: var(--secondary-color);
}

/* Message Types */
.message {
    margin-bottom: var(--spacing-3) !important;
    padding: 10px !important;
    border-radius: 8px !important;
    font-size: 14px !important;
    font-weight: 300 !important;
}

.user-message {
    background: #e3f2fd !important;
    border-left: 4px solid #2196f3 !important;
    text-align: right;
}

.ai-message {
    background: #e8f5e8 !important;
    border-left: 4px solid #28a745 !important;
}

.ai-message.warning {
    background: #fff3cd !important;
    border-left: 4px solid #ffc107 !important;
}

.ai-message.emergency {
    background: #ffebee !important;
    border-left: 4px solid #f44336 !important;
}

.error-message {
    background: #ffebee !important;
    border-left: 4px solid #f44336 !important;
    color: #c62828 !important;
}

.system-message {
    background: #fff3cd !important;
    border-left: 4px solid #ffc107 !important;
    color: #856404 !important;
    text-align: center;
}

/* Typing Animation */
@keyframes blink {
    0%, 20% { opacity: 1; }
    50% { opacity: 0; }
    100% { opacity: 1; }
}

.typing-dots span {
    color: #28a745;
    font-size: 8px;
    margin: 0 1px;
}

/* Chat Status */
.chat-status {
    font-size: var(--font-size-sm);
}

.chat-status.processing {
    color: var(--primary-color) !important;
}

.chat-status.error {
    color: var(--error-color) !important;
}

.chat-status.success {
    color: var(--success-color) !important;
}

/* Scrollbar for chat box */
.chat-box::-webkit-scrollbar {
    width: 8px;
}

.chat-box::-webkit-scrollbar-track {
    background: #34495e;
    border-radius: 4px;
}

.chat-box::-webkit-scrollbar-thumb {
    background: #5a6c7d;
    border-radius: 4px;
}

.chat-box::-webkit-scrollbar-thumb:hover {
    background: #6c7b8a;
}

/* Chat Input Styling */
.chat-input-container {
    display: flex;
    align-items: flex-end;
    gap: 10px;
}

#chat-input {
    transition: border-color 0.8s ease;
}

#chat-input:focus {
    outline: none;
    border-color: #3498db !important;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

#send-message-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

#send-message-btn:active {
    transform: translateY(0);
}

/* Dark theme message adjustments */
.message {
    color: #2c3e50 !important;
}

.message strong {
    color: inherit;
}

.message small {
    color: rgba(44, 62, 80, 0.7) !important;
}

.error-message {
    color: #c62828 !important;
}

.system-message {
    color: #856404 !important;
}

/* Emergency message animation */
@keyframes pulse-red {
    0% {
        box-shadow: 0 4px 8px rgba(244, 67, 54, 0.2);
        border-color: #f44336;
    }
    50% {
        box-shadow: 0 6px 12px rgba(244, 67, 54, 0.4);
        border-color: #d32f2f;
    }
    100% {
        box-shadow: 0 4px 8px rgba(244, 67, 54, 0.2);
        border-color: #f44336;
    }
}

/* Translation Mode Error Feedback */
.error-flash {
    animation: flash-red 0.5s ease-in-out;
}

@keyframes flash-red {
    0% { box-shadow: inset 0 0 0 0 rgba(255, 0, 0, 0); }
    50% { box-shadow: inset 0 0 50px 0 rgba(255, 0, 0, 0.3); border-color: rgba(255, 0, 0, 0.5); }
    100% { box-shadow: inset 0 0 0 0 rgba(255, 0, 0, 0); }
}