body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-container {
    flex: 1;
    display: flex;
}

/* Ensure footer stays at bottom */
footer {
    margin-top: auto;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #20b2aa, #4f46e5);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #1a9999, #4338ca);
}

/* Message Animation */
.message-enter {
    animation: messageSlideIn 0.3s ease-out;
}

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

/* Drag and Drop Animation */
.drag-over {
    background: rgba(32, 178, 170, 0.2) !important;
    border-color: #20b2aa !important;
    transform: scale(1.02);
}

/* File Preview Styles */
.file-preview {
    transition: all 0.2s ease;
}

.file-preview:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.15);
}

/* Text Content Styling */
.text-content {
    color: #e6edf3;
    line-height: 1.6;
    font-size: 15px;
}

.text-content p {
    margin-bottom: 12px;
}

/* Code Block Styling - ChatGPT Style */
.code-block-container {
    margin: 16px 0;
    border-radius: 8px;
    background: #0d1117;
    border: 2px solid #30363d;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    position: relative;
}

.code-block-container pre {
    background: #0d1117;
    border: none;
    border-radius: 8px;
    padding: 16px;
    margin: 0;
    overflow-x: auto;
    position: relative;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', monospace;
    font-size: 14px;
    line-height: 1.5;
}

.code-block-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(135deg, #21262d 0%, #30363d 100%);
    border-bottom: 1px solid #30363d;
    border-radius: 6px 6px 0 0;
}

.code-block-container::after {
    content: "Code";
    position: absolute;
    top: 12px;
    left: 16px;
    color: #7d8590;
    font-size: 12px;
    font-family: system-ui, -apple-system, sans-serif;
    font-weight: 500;
    z-index: 1;
}

.code-block-container pre code {
    background: transparent;
    padding: 40px 0 0 0;
    border-radius: 0;
    color: #e6edf3;
    font-size: 14px;
    line-height: 1.5;
    display: block;
    position: relative;
    z-index: 2;
}

/* Inline Code Styling */
code.inline-code {
    background: #30363d;
    color: #e6edf3;
    padding: 3px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', monospace;
    font-size: 13px;
    border: 1px solid #21262d;
}

/* Legacy support for old message format */
.message pre {
    background: #0d1117;
    border: 2px solid #30363d;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    overflow-x: auto;
    position: relative;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', monospace;
    font-size: 14px;
    line-height: 1.5;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.message pre code {
    background: transparent;
    color: #e6edf3;
    padding: 0;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', monospace;
    font-size: 14px;
}

/* Copy button for code blocks */
.code-block-container {
    position: relative;
}

.copy-code-btn {
    position: absolute;
    top: 12px;
    right: 16px;
    background: #21262d;
    color: #7d8590;
    border: 1px solid #30363d;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s ease;
    z-index: 3;
    font-weight: 500;
}

.code-block-container:hover .copy-code-btn {
    opacity: 1;
}

.copy-code-btn:hover {
    background: #30363d;
    color: #e6edf3;
    transform: translateY(-1px);
}

/* Image Generation Grid */
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.generated-image {
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s ease;
    cursor: pointer;
}

.generated-image:hover {
    transform: scale(1.05);
}

/* Mobile Responsive Sidebar */
@media (max-width: 768px) {
    #sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        height: 100vh;
        z-index: 50;
        transition: left 0.3s ease;
        width: 320px;
        max-width: 90vw;
    }
    
    #sidebar.sidebar-open {
        left: 0;
    }
    
    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 40;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }
    
    .sidebar-overlay.active {
        opacity: 1;
        pointer-events: auto;
    }
    
    /* Adjust chat container for mobile */
    #chat-container {
        padding-bottom: 140px !important;
    }
    
    /* Make input area more compact on mobile */
    .chat-input-container {
        padding: 12px !important;
    }
    
    /* Improve text input on mobile */
    #message-input {
        font-size: 16px !important; /* Prevents zoom on iOS */
        padding: 12px 16px !important;
    }
    
    /* Better button sizing on mobile */
    #send-btn {
        padding: 12px !important;
        min-width: 48px;
        min-height: 48px;
    }
    
    /* Responsive welcome grid */
    .welcome-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 12px !important;
    }
    
    /* Compact model info on mobile */
    .model-info {
        padding: 12px !important;
        font-size: 11px !important;
    }
    
    /* Better file upload on mobile */
    #file-drop-zone {
        padding: 16px !important;
    }
}

/* Loading States */
.loading-dots {
    display: inline-block;
}

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

@keyframes loadingDots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Button Hover Effects */
button {
    position: relative;
    overflow: hidden;
}

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;
}

button:hover::before {
    left: 100%;
}

/* File Upload Enhancements */
.file-item {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 8px 12px;
    margin: 4px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s ease;
}

.file-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(4px);
}

/* Gradient Animation */
.animate-gradient {
    background-size: 200% 200%;
    animation: gradient 15s ease infinite;
}

@keyframes gradient {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Text Selection */
::selection {
    background: rgba(32, 178, 170, 0.3);
    color: white;
}

::-moz-selection {
    background: rgba(32, 178, 170, 0.3);
    color: white;
}

/* Focus States */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(32, 178, 170, 0.5);
}

/* Disabled States */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

button:disabled::before {
    display: none;
}

/* Header Gradient */
header {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 100%);
}

/* Footer Styling */
footer {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 100%);
}

/* Chat Container Styling */
#chat-container {
    background: linear-gradient(180deg, #0a0a15 0%, #0f0f23 100%);
    padding-bottom: 90px; /* Reduced from default to move input higher */
}

/* Landscape mobile optimization */
@media (max-width: 768px) and (orientation: landscape) {
    #chat-container {
        padding-bottom: 80px !important;
    }
    
    .chat-input-container {
        padding: 8px !important;
    }
    
    #message-input {
        padding: 8px 12px !important;
    }
    
    #send-btn {
        padding: 8px !important;
    }
}

/* Image Modal Enhancement */
.image-modal {
    backdrop-filter: blur(10px);
}

/* Welcome Section Enhancement */
.welcome-feature {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.welcome-feature:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(32, 178, 170, 0.2);
}

/* Message Styling Improvements */
.message-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 8px 0;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.message-content img:hover {
    transform: scale(1.02);
}

/* Typing Indicator Animation */
#typing-indicator i {
    animation: pulse 1.5s infinite;
}

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

/* Enhanced Button Styles */
.btn-gradient {
    background: linear-gradient(135deg, #20b2aa 0%, #4f46e5 100%);
    transition: all 0.3s ease;
}

.btn-gradient:hover {
    background: linear-gradient(135deg, #1a9999 0%, #4338ca 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(32, 178, 170, 0.3);
}

/* Improved Dark Theme for Messages */
.message-dark {
    background: #1a1a2e;
    border: 1px solid #2d2d44;
    color: #e6edf3;
}

/* Better contrast for system messages */
.system-message {
    background: linear-gradient(135deg, #2d2d44 0%, #1a1a2e 100%);
    border: 1px solid #4a4a6a;
    color: #b8c5d1;
}

/* Error message styling */
.error-message {
    background: linear-gradient(135deg, #2a1f1f 0%, #1a1a1a 100%);
    border: 1px solid #4a3333;
    color: #d1b8b8;
}

/* Responsive typography */
@media (max-width: 480px) {
    h1 {
        font-size: 1.25rem !important;
    }
    
    h2 {
        font-size: 1.125rem !important;
    }
    
    .text-lg {
        font-size: 1rem !important;
    }
    
    .text-3xl {
        font-size: 1.5rem !important;
    }
    
    /* Compact padding for small screens */
    .p-6 {
        padding: 1rem !important;
    }
    
    .p-4 {
        padding: 0.75rem !important;
    }
    
    /* Better spacing */
    .space-y-4 > * + * {
        margin-top: 0.75rem !important;
    }
    
    .mb-4 {
        margin-bottom: 0.75rem !important;
    }
}

/* Chat Input Enhancement */
#message-input {
    transition: all 0.2s ease;
}

#message-input:focus {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(32, 178, 170, 0.2);
}

/* Chat Input Positioning - Move Higher */
.chat-input-container {
    bottom: 0;
    padding: 16px;
}

/* Reduce chat container bottom padding */
#chat-container {
    padding-bottom: 100px !important;
}

/* Better mobile touch targets */
@media (max-width: 768px) {
    button, select, input, textarea {
        min-height: 44px;
    }
    
    /* Improve touch scrolling */
    #chat-container {
        -webkit-overflow-scrolling: touch;
    }
    
    /* Better text sizing for mobile */
    .text-content {
        font-size: 16px;
        line-height: 1.5;
    }
    
    /* Responsive code blocks */
    .code-block-container {
        margin: 12px 0;
        font-size: 13px;
    }
    
    .code-block-container pre {
        padding: 12px;
        font-size: 13px;
    }
    
    /* Better message spacing on mobile */
    .message-enter {
        margin-bottom: 16px;
    }
    
    /* Compact stats on mobile */
    .stat-item {
        padding: 8px 12px !important;
        font-size: 12px !important;
    }
}

/* Model Selector Enhancement */
#model-selector {
    transition: all 0.2s ease;
}

#model-selector:focus {
    transform: translateY(-1px);
}

/* File Drop Zone Animation */
#file-drop-zone {
    transition: all 0.3s ease;
}

#file-drop-zone:hover {
    background: rgba(32, 178, 170, 0.1);
    border-color: #20b2aa;
}

/* Stats Counter Animation */
.stat-number {
    transition: all 0.3s ease;
}

.stat-number:hover {
    color: #20b2aa;
    transform: scale(1.1);
}

/* Improved accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .bg-chat-dark {
        background: #000000 !important;
    }
    
    .text-gray-400 {
        color: #ffffff !important;
    }
    
    .border-chat-border {
        border-color: #ffffff !important;
    }
}

/* Dark mode improvements */
@media (prefers-color-scheme: dark) {
    /* Already optimized for dark mode */
}

/* Better focus indicators */
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #20b2aa;
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Better selection colors */
::selection {
    background: rgba(32, 178, 170, 0.4);
    color: white;
}

::-moz-selection {
    background: rgba(32, 178, 170, 0.4);
    color: white;
}