/* Enhanced styles with optimized performance */
:root {
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --secondary-500: #10b981;
    --secondary-600: #059669;
    --danger-500: #ef4444;
    --danger-600: #dc2626;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: #1e293b;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

.dark body {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #f8fafc;
}
/* Optimized transitions for better performance */
* {
    transition: background-color 0.2s ease, color 0.15s ease, border-color 0.15s ease, transform 0.2s ease, opacity 0.2s ease;
}

/* Hardware acceleration for smooth animations */
.chat-message,
.prompt-button,
#theme-toggle,
#red-mode-toggle,
#voice-record,
#file-upload-btn {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000;
}
#chat-form {
    border: 1px solid #e2e8f0;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
}

.dark #chat-form {
    border-color: #334155;
    background: rgba(30, 41, 59, 0.8);
}
/* Enhanced Red mode styles */
.red-mode {
    --nav-bg: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    --footer-bg: #450a0a;
}

.red-mode body {
    background: linear-gradient(135deg, #0c0a09 0%, #1c1917 100%);
}

.red-mode .bg-white {
    background-color: #1c1917 !important;
}

.red-mode .bg-gray-100 {
    background-color: #0c0a09 !important;
}

.red-mode .dark\:bg-gray-900 {
    background-color: #0c0a09 !important;
}

.red-mode .dark\:bg-gray-800 {
    background-color: #292524 !important;
}

.red-mode .border-gray-200 {
    border-color: #44403c !important;
}

.red-mode .dark\:border-gray-700 {
    border-color: #44403c !important;
}

.red-mode .text-gray-800 {
    color: #f5f5f4 !important;
}

.red-mode .dark\:text-gray-200 {
    color: #f5f5f4 !important;
}

.red-mode .text-gray-500 {
    color: #d6d3d1 !important;
}

.red-mode .dark\:text-gray-400 {
    color: #d6d3d1 !important;
}

.red-mode .bg-primary-500 {
    background-color: #dc2626 !important;
}

.red-mode .hover\:bg-primary-600:hover {
    background-color: #b91c1c !important;
}

/* Red mode specific enhancements */
.red-mode #chat-form {
    border-color: #dc2626;
    background: rgba(28, 25, 23, 0.8);
}

.red-mode .prompt-button:hover {
    background-color: #292524 !important;
}

.red-mode #chat-history-item:hover {
    background-color: rgba(220, 38, 38, 0.2);
}
/* Optimized chat message animations */
@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(8px) scale(0.98); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1); 
    }
}

@keyframes slideInLeft {
    from { 
        opacity: 0; 
        transform: translateX(-10px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

@keyframes slideInRight {
    from { 
        opacity: 0; 
        transform: translateX(10px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}
/* Red mode chat styles */
.red-mode .chat-message.assistant {
    background-color: rgba(220, 38, 38, 0.1) !important;
    border-left: 3px solid rgba(220, 38, 38, 0.5);
}
/* Enhanced chat history items */
#chat-history-item {
    padding: 0.75rem;
    border-radius: 0.5rem;
    margin-bottom: 0.25rem;
    cursor: pointer;
    font-size: 0.875rem;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

#chat-history-item:hover {
    background-color: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.2);
    transform: translateY(-1px);
}

#chat-history-item.active {
    background-color: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(99, 102, 241, 0.1);
}
/* Enhanced file upload indicator */
.file-upload-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: 0.5rem;
    font-size: 0.75rem;
    color: #10b981;
    font-weight: 500;
}

/* Improved chat message styling */
.chat-message {
    animation: fadeIn 0.25s ease-out forwards;
}

.chat-message.user {
    animation: slideInRight 0.25s ease-out forwards;
}

.chat-message.assistant {
    animation: slideInLeft 0.25s ease-out forwards;
}

/* Enhanced button states */
button:active {
    transform: scale(0.98);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Scrollbar styling for better UX */
#chat-container::-webkit-scrollbar,
#chat-history::-webkit-scrollbar {
    width: 4px;
}

#chat-container::-webkit-scrollbar-track,
#chat-history::-webkit-scrollbar-track {
    background: transparent;
}

#chat-container::-webkit-scrollbar-thumb,
#chat-history::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.3);
    border-radius: 2px;
}

#chat-container::-webkit-scrollbar-thumb:hover,
#chat-history::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.5);
}

/* Loading states */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* Responsive design improvements */
@media (max-width: 1024px) {
    .grid-cols-1\:lg\:grid-cols-4 {
        grid-template-columns: 1fr;
    }
    
    .lg\:col-span-3,
    .lg\:col-span-1 {
        grid-column: 1;
    }
}

/* Performance optimizations */
.chat-message {
    will-change: transform, opacity;
}

.prompt-button {
    will-change: transform, background-color;
}