/* Enhanced Puter AI Chatbot Styles */
:root {
    --primary-color: #4f46e5;
    --secondary-color: #6b7280;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    /* Enhanced gradient background */
    --surface: #ffffff;
    --surface-hover: #f3f4f6;
    --text-primary: #1a202c;
    --text-secondary: #718096;
    --border: #e2e8f0;
    --border-focus: #4f46e5;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 25px 50px rgba(0, 0, 0, 0.2);
    --radius: 8px;
    --radius-lg: 20px;
    /* Increased for modern look */
    --puter-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --system-message-bg: #e0e7ff;
    --user-message-bg: var(--primary-color);
    --assistant-message-bg: var(--surface);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.hidden {
    display: none !important;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    height: 100vh;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Enhanced App Container */
#app {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: 100vh;
    position: relative;
    background: rgba(178, 169, 239, 0.7);
    /* Lighten app container background for contrast */
    border: 1.5px solid #e0e7ff;
    /* Subtle border for separation */
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.10);
    /* Soft shadow for depth */

    /* Mobile optimizations */
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin: 20px;
    height: calc(100vh - 40px);
    flex: 1;
}

/* Modern Header with Animations */
.app-header,
.header {
    background: var(--puter-gradient);
    color: white;
    padding: 20px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.app-header::before,
.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    /* animation: shimmer 8s ease-in-out infinite; */
}

/* Removed shimmer keyframes */

.header-content {
    display: flex;
    align-items: center;
    gap: 15px;
    position: relative;
    z-index: 1;
}

.bot-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    /* animation: pulse 2s ease-in-out infinite; */
}

/* Removed pulse keyframes */

.app-header h1,
.header-text h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 2px;
    position: relative;
    z-index: 1;
    color: #312e81;
    /* Darker color for better contrast */
}

.app-header p,
.header-text p {
    font-size: 14px;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* Vision Indicator in Header */
.vision-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 12px;
    padding: 4px 8px;
    margin-top: 4px;
    animation: visionGlow 2s ease-in-out infinite;
}

.vision-icon {
    font-size: 12px;
}

.vision-text {
    font-size: 11px;
    font-weight: 600;
    color: #065f46;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@keyframes visionGlow {

    0%,
    100% {
        background: rgba(16, 185, 129, 0.2);
        border-color: rgba(16, 185, 129, 0.3);
    }

    50% {
        background: rgba(16, 185, 129, 0.3);
        border-color: rgba(16, 185, 129, 0.5);
    }
}

/* Status Indicator */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.status-dot {
    width: 12px;
    height: 12px;
    background: var(--success-color);
    border-radius: 50%;
    position: relative;
    /* animation: statusPulse 2s ease-in-out infinite; */
}

/* Removed statusPulse keyframes */

.status-text {
    font-size: 14px;
}

/* Enhanced Toggle Button */
.toggle-params,
.settings-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 12px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    color: white;
}

.toggle-params:hover,
.settings-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* Enhanced Main Chat Interface */
.main-chat-interface {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: rgba(248, 250, 252, 0.8);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(226, 232, 240, 0.5);
    flex-shrink: 0;
    min-height: 0;
}

/* Enhanced Messages Container */
.messages,
.chat-messages {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    scroll-behavior: smooth;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    margin-bottom: 0;
}

.messages::-webkit-scrollbar,
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.messages::-webkit-scrollbar-track,
.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.messages::-webkit-scrollbar-thumb,
.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.3);
    border-radius: 10px;
}

/* Enhanced Message Styling */
.message {
    display: flex;
    margin-bottom: 24px;
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    justify-content: flex-end;
}

.message-content {
    max-width: 70%;
    padding: 16px 20px;
    border-radius: 20px;
    position: relative;
    line-height: 1.6;
}

.message.bot .message-content,
.message.assistant .message-content {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    color: #334155;
    border-bottom-left-radius: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: none;
}

.message.user .message-content {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    border-bottom-right-radius: 6px;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.message.welcome .message-content {
    background: var(--system-message-bg);
    border: 1px solid #a5b4fc;
    color: var(--text-primary);
    text-align: center;
}

.message.error .message-content {
    background: #fef2f2;
    color: var(--danger-color);
    border: 1px solid #fecaca;
    text-align: center;
}

.message.system .message-content {
    background: #f0f9ff;
    color: #0369a1;
    border: 1px solid #bae6fd;
    text-align: center;
    font-size: 14px;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

/* Enhanced Input Area */
.input-area,
.chat-input-area {
    padding: 12px;
    position: sticky;
    bottom: 0;
    background: rgba(248, 250, 252, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(226, 232, 240, 0.5);
    flex-shrink: 0;
}

/* Suggestions */
.suggestions {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.suggestion,
.example-btn {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    color: #6366f1;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.suggestion:hover,
.example-btn:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-1px);
    color: #6366f1;
}

/* Enhanced Input Container */
.input-container,
.input-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: white;
    border-radius: 25px;
    padding: 15px 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 15px;
    width: 100%;
}

.input-container:focus-within,
.input-content:focus-within {
    border-color: #6366f1;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.2);
}

/* Mobile-specific input layout */
.model-selector-mobile {
    display: block;
}

/* Android-optimized layout */
@media (max-width: 768px) {

    /* Hide header decorative overlay on small screens to prevent overlap */
    .app-header::before,
    .header::before { content: none; pointer-events: none; }

    /* Ensure header content stays above */
    .header-content, .status-indicator { position: relative; z-index: 2; }

    /* Vision icon adjustable positioning for Android */
    #visionIndicator .vision-icon {
        position: relative;    /* change to absolute if you want free placement */
        left: 0;               /* adjust +/- to move horizontally */
        top: 0;                /* adjust if you need vertical nudge */
        margin-left: 0px;    /* current left shift; tweak as needed */
        margin-right: 0;       /* add spacing to the right if needed */
        transform: translateX(0); /* use instead of margins if preferred */
        z-index: 2;            /* keep above header background */
    }

    /* Input area - vertical stack layout */
    .input-area {
        display: flex;
        flex-direction: column;
        gap: 8px;
        padding: 10px 12px;

    }

    .input-actions>* {
        margin: 0 2px;
        max-width: 0px;

    }

    /* Model selector at top right for Android */
    .model-selector-mobile {
        order: 1;
        /* Show first */
        align-self: flex-end;
        width: auto;
        min-width: 120px;
        margin-bottom: 8px;
        position: relative;
        z-index: 3;
    }

    /* Suggestions below model selector */
    .suggestions {
        order: 2;
        /* Show after model selector */
        width: 100%;
    }

    /* Input container at bottom - horizontal layout */
    .input-container {
        order: 3;
        /* Show last */
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 8px;
        padding: 10px 12px;
        border-radius: 16px;
        background: white;
        border: 1px solid rgba(226, 232, 240, 0.8);
        flex: 1;
        min-width: 0;
    }

    .input-wrapper {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
        min-width: 0;
    }

    .model-selector-mobile .model-selector {
        width: 100%;
        padding: 8px 12px;
        font-size: 12px;
        border-radius: 15px;
        background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
        border: none;
        height: auto;
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236b7280'%3e%3cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: right 12px center;
        background-size: 16px;
        padding-right: 36px;
        margin-bottom: 0;
        color: #475569;
        font-weight: 500;
        outline: none;
    }

    /* Hide desktop model selector on mobile */
    .input-actions .model-selector {
        display: none;
    }

    /* Make dropdown options readable */
    .model-selector-mobile .model-selector option {
        font-size: 14px;
        padding: 8px 12px;
    }

    .model-selector-mobile .model-selector optgroup {
        font-size: 12px;
        font-weight: 600;
    }
}

textarea#messageInput {
    flex: 1;
    border: none !important;
    outline: none !important;
    font-size: 16px;
    resize: none;
    min-height: 24px;
    max-height: 120px;
    font-family: inherit;
    line-height: 1.5;
    color: #1f2937 !important;
    background: transparent !important;

    /* Mobile optimizations */
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border-radius: 0;
    box-shadow: none !important;
}

textarea#messageInput::placeholder {
    color: #9ca3af !important;
    opacity: 0.7;
}

/* Enhanced Input Controls */
.input-actions,
.input-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-upload {
    display: flex;
    /* Always visible, controlled by JavaScript */
}

.file-btn,
.file-upload label {
    background: rgba(99, 102, 241, 0.1);
    border: none;
    border-radius: 12px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #6366f1;
    font-size: 1.2rem;
    position: relative;
}

.file-btn:hover,
.file-upload label:hover {
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-1px);
}

/* GPT Vision Active State */
.file-btn.gpt-vision-active {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    animation: visionPulse 2s ease-in-out infinite;
}

.file-btn.gpt-vision-active:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-1px) scale(1.05);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

@keyframes visionPulse {

    0%,
    100% {
        box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
    }

    50% {
        box-shadow: 0 4px 15px rgba(16, 185, 129, 0.6), 0 0 20px rgba(16, 185, 129, 0.2);
    }
}

/* Vision Logo Container */
.vision-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.vision-logo svg {
    width: 16px;
    height: 16px;
    margin-bottom: 2px;
}

.vision-badge {
    font-size: 8px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    line-height: 1;
    opacity: 0.9;
}

.model-selector,
.model-selector select {
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    border: none;
    border-radius: 15px;
    margin-bottom: 6px;
    padding: 8px 12px;
    font-size: 12px;
    color: #475569;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    outline: none;

}

.model-selector:hover,
.model-selector select:hover {
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
}

/* Enhanced Send Button */
.send-btn,
button.primary {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    color: white;
}

.send-btn:hover,
button.primary:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.send-btn:active,
button.primary:active {
    transform: scale(0.95);
}

.send-btn svg {
    width: 20px;
    height: 20px;
    stroke: white;
    stroke-width: 2;
    transform: translateX(1px);
}

.send-btn.has-content {
    background: linear-gradient(135deg, #10b981, #059669);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.send-btn.has-content:hover {
    background: linear-gradient(135deg, #059669, #047857);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    transform: scale(1.05);
}

.send-btn .spinner {
    animation: spin 1s linear infinite;
    display: block;
    margin: auto;
}

.send-btn .spinner .path {
    stroke: currentColor;
    opacity: 0.7;
}

/* Clean Settings Sidebar */
.settings-sidebar {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: #ffffff;
    box-shadow: -2px 0 15px rgba(0, 0, 0, 0.1);
    padding: 0;
    transition: right 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    border-left: 1px solid #e5e7eb;
}

.settings-sidebar.open {
    right: 0;
}

.sidebar-header {
    background: #f8fafc;
    color: #1f2937;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 0;
}

.sidebar-header h3,
.settings-sidebar h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
    color: #1f2937;
}

.close-sidebar {
    background: transparent;
    border: none;
    border-radius: 6px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #6b7280;
    font-size: 18px;
}

.close-sidebar:hover {
    background: #f3f4f6;
    color: #374151;
}

/* Enhanced Model Parameters */
.model-params {
    padding: 25px;
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    margin-top: 0;
}

.param-group {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f3f4f6;
}

.param-group label {
    display: block;
    font-weight: 500;
    color: #374151;
    margin-bottom: 8px;
    font-size: 13px;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: #6b7280;
    position: relative;
    padding-left: 30px;
    font-weight: normal;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    margin: 0;
}

.checkmark {
    position: absolute;
    left: 0;
    height: 18px;
    width: 18px;
    background: #e5e7eb;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked~.checkmark {
    background: #6366f1;
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 3px;
    width: 5px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label input[type="checkbox"]:checked~.checkmark:after {
    display: block;
}

/* Enhanced Parameter Inputs */
.input-with-value {
    display: flex;
    align-items: center;
    gap: 12px;
}

.param-slider {
    flex: 1;
    height: 4px;
    border-radius: 2px;
    background: #e5e7eb;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.param-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #6366f1;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.param-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #6366f1;
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.param-value {
    background: #f8fafc;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    color: #6366f1;
    min-width: 45px;
    text-align: center;
    border: 1px solid #e5e7eb;
    text-align: center;
}

.param-group input[type="number"] {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-hover);
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.param-group input[type="number"]:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Enhanced Image Styling */
.image-preview {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    margin: 0.75rem;
    padding: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    opacity: 1;
    transform: scale(1);
    animation: slideInUp 0.3s ease-out;
}

.image-preview:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.image-preview img {
    max-width: 90px;
    max-height: 90px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.image-name {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    word-break: break-all;
}

.remove-image {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--danger-color);
    color: white;
    border: 2px solid var(--surface);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
}

.remove-image:hover {
    background: #dc2626;
    transform: scale(1.1);
}

/* Generated Images */
.generated-image-container {
    padding: 1.5rem;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    text-align: center;
    margin-top: 1rem;
    box-shadow: var(--shadow);
}

.generated-image-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.message-images {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.message-image {
    max-width: 180px;
    max-height: 130px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
}

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

/* Enhanced Drag and Drop */
body.drag-over::after {
    content: '✨ Drop images here to upload ✨';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(79, 70, 229, 0.15);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    z-index: 10000;
    border: 5px dashed var(--primary-color);
    border-radius: var(--radius-lg);
    animation: fadeIn 0.3s ease-out;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.send-btn.loading,
button.primary.loading {
    animation: spin 1s linear infinite;
}

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

    to {
        transform: rotate(360deg);
    }
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    body {
        overflow: hidden;
        position: fixed;
        width: 100%;
        height: 100vh;
    }

    #app {
        width: 100vw;
        height: 100vh;
        margin: 0;
        padding: 0;
    }

    .chat-container {
        margin: 0;
        height: 100vh;
        border-radius: 0;
        width: 100vw;
        max-width: none;
    }

    .app-header,
    .header {
        padding: 12px 16px;
        min-height: 60px;
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .header-content {
        gap: 12px;
    }

    .bot-avatar {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .app-header h1,
    .header-text h1 {
        font-size: 18px;
        margin-bottom: 0;
    }

    .app-header p,
    .header-text p {
        font-size: 12px;
        display: none;
        /* Hide subtitle on mobile to save space */
    }

    .vision-indicator {
        margin-top: 2px;
        padding: 2px 6px;
    }

    .vision-text {
        font-size: 10px;
    }

    .status-indicator {
        gap: 6px;
    }

    .status-text {
        font-size: 12px;
    }

    .messages,
    .chat-messages {
        padding: 16px 12px;
        height: calc(100vh - 180px);
        overflow-y: auto;
    }

    @supports (-webkit-overflow-scrolling: touch) {
        .messages,
        .chat-messages {
            -webkit-overflow-scrolling: touch;
        }
    }

    .message {
        margin-bottom: 16px;
    }

    .message-content {
        max-width: 90%;
        padding: 12px 16px;
        font-size: 15px;
        line-height: 1.5;
    }

    .input-area,
    .chat-input-area {
        padding: 12px;
        position: sticky;
        bottom: 0;
        background: rgba(248, 250, 252, 0.95);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
    }

    .suggestions {
        gap: 6px;
        margin-bottom: 12px;
        overflow-x: auto;
        padding-bottom: 4px;
        flex-wrap: nowrap;
    }

    @supports (-webkit-overflow-scrolling: touch) {
        .suggestions {
            -webkit-overflow-scrolling: touch;
        }
    }

    .suggestion,
    .example-btn {
        padding: 8px 12px;
        font-size: 12px;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .input-container,
    .input-content {
        padding: 12px 16px;
        gap: 12px;
    }

    textarea#messageInput {
        font-size: 16px;
        /* Prevent zoom on iOS */
        min-height: 20px;
        max-height: 100px;
    }

    .input-actions,
    .input-controls {
        gap: 8px;
    }

    .file-btn,
    .file-upload label {
        width: 40px;
        height: 40px;
    }

    .model-selector {
        padding: 8px 10px;
        font-size: 11px;
        min-width: 80px;
    }

    .send-btn,
    button.primary {
        width: 48px;
        height: 48px;
    }

    .settings-sidebar {
        width: 100vw;
        right: -100vw;
        height: 100vh;
        position: fixed;
        top: 0;
    }

    .settings-sidebar.open {
        right: 0;
    }

    .sidebar-header {
        padding: 16px 20px;
        min-height: 60px;
    }

    .sidebar-content {
        height: calc(100vh - 60px);
        padding-bottom: 20px;
    }

    .model-params {
        padding: 16px 20px;
    }

    .param-group {
        margin-bottom: 20px;
    }

    .toggle-params,
    .settings-btn {
        position: relative;
        top: auto;
        right: auto;
    }

    /* Touch-friendly interactions */
    .message-content,
    .suggestion,
    .file-btn,
    .send-btn,
    .settings-btn {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    }

    /* Improve scrolling performance */
    .messages,
    .chat-messages,
    .sidebar-content {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }

    /* Hide scrollbars on mobile for cleaner look */
    .messages::-webkit-scrollbar,
    .chat-messages::-webkit-scrollbar,
    .suggestions::-webkit-scrollbar {
        display: none;
    }

    /* Keyboard handling */
    .input-container:focus-within {
        transform: translateY(0);
    }
}

/* Tablet optimizations */
@media (min-width: 769px) and (max-width: 1024px) {
    .chat-container {
        margin: 20px;
        height: calc(100vh - 40px);
        max-width: 900px;
    }

    .messages,
    .chat-messages {
        padding: 24px;
    }

    .message-content {
        max-width: 80%;
        font-size: 16px;
    }

    .input-area,
    .chat-input-area {
        padding: 20px 24px;
    }

    .settings-sidebar {
        width: 400px;
        right: -400px;
    }
}

/* Landscape mobile optimizations */
@media (max-width: 768px) and (orientation: landscape) {

    .app-header,
    .header {
        padding: 8px 16px;
        min-height: 50px;
    }

    .bot-avatar {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .app-header h1,
    .header-text h1 {
        font-size: 16px;
    }

    .messages,
    .chat-messages {
        height: calc(100vh - 140px);
        padding: 12px;
    }

    .input-area,
    .chat-input-area {
        padding: 8px 12px;
    }

    .suggestions {
        margin-bottom: 8px;
    }
}

/* Accessibility and Focus States */
button:focus-visible,
select:focus-visible,
label:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 3px;
    border-radius: var(--radius);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
        --surface: #1e293b;
        --surface-hover: #334155;
        --text-primary: #f1f5f9;
        --text-secondary: #94a3b8;
        --border: #475569;
        --system-message-bg: #3730a3;
        --user-message-bg: #4f46e5;
        --assistant-message-bg: #1e293b;
    }
}

/* Print styles */
@media print {

    .input-area,
    .chat-input-area,
    .input-container,
    .toggle-params,
    .settings-btn,
    .settings-sidebar {
        display: none;
    }

    body {
        background: white;
    }

    .chat-container {
        box-shadow: none;
        margin: 0;
        border-radius: 0;
        background: white;
    }
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.file-input-hidden {
    display: none !important;
    position: absolute !important;
    left: -9999px !important;
    opacity: 0 !important;
    width: 0 !important;
    height: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
}

/* Completely hide file inputs */
input[type="file"] {
    display: none !important;
    position: absolute !important;
    left: -9999px !important;
    opacity: 0 !important;
    width: 0 !important;
    height: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

input[type="file"]::-webkit-file-upload-button {
    display: none !important;
}

input[type="file"]::file-selector-button {
    display: none !important;
}

/* Enhance
d Sidebar Styles for Model Categories and Memory */

.sidebar-content {
    padding: 20px;
    height: calc(100vh - 60px);
    overflow-y: auto;
}

.sidebar-content::-webkit-scrollbar {
    width: 6px;
}

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

.sidebar-content::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.3);
    border-radius: 10px;
}

/* Memory Controls */
.memory-controls {
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
    background: rgba(248, 250, 252, 0.5);
}

.memory-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.memory-btn {
    flex: 1;
    padding: 8px 12px;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 500;
    color: #475569;
    cursor: pointer;
    transition: all 0.3s ease;
}

.memory-btn:hover {
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    transform: translateY(-1px);
}

.memory-info {
    font-size: 12px;
    color: #6b7280;
    text-align: center;
}

.memory-message {
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    margin-top: 10px;
    animation: fadeInUp 0.3s ease-out;
}

.memory-message-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.memory-message-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Model Categories */
.model-categories {
    flex: 1;
}

.model-category {
    border-bottom: 1px solid #e5e7eb;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: rgba(248, 250, 252, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    -webkit-user-select: none;
    user-select: none;
}

.category-header:hover {
    background: rgba(241, 245, 249, 0.9);
}

.category-header.collapsed {
    background: rgba(248, 250, 252, 0.5);
}

.category-icon {
    font-size: 18px;
    margin-right: 10px;
}

.category-title {
    flex: 1;
    font-weight: 600;
    color: #374151;
    font-size: 14px;
}

.category-toggle {
    font-size: 12px;
    color: #6b7280;
    transition: transform 0.3s ease;
}

.category-header.collapsed .category-toggle {
    transform: rotate(-90deg);
}

/* Model Items */
.category-content {
    background: white;
}

.model-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-bottom: 1px solid #f3f4f6;
    transition: all 0.3s ease;
    cursor: pointer;
}

.model-item:hover {
    background: rgba(99, 102, 241, 0.05);
}

.model-item.selected {
    background: rgba(99, 102, 241, 0.1);
    border-left: 3px solid #6366f1;
}

.model-info {
    flex: 1;
    min-width: 0;
}

.model-name {
    font-weight: 600;
    color: #374151;
    font-size: 13px;
    margin-bottom: 2px;
}

.model-provider {
    font-size: 11px;
    font-weight: 500;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.model-description {
    font-size: 11px;
    color: #6b7280;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.model-actions {
    display: flex;
    gap: 6px;
    margin-left: 10px;
}

.model-select-btn,
.model-info-btn {
    padding: 4px 8px;
    font-size: 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.model-select-btn {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
}

.model-select-btn:hover {
    background: linear-gradient(135deg, #5b21b6, #7c3aed);
    transform: translateY(-1px);
}

.model-info-btn {
    background: rgba(107, 114, 128, 0.1);
    color: #6b7280;
    border: 1px solid rgba(107, 114, 128, 0.2);
}

.model-info-btn:hover {
    background: rgba(107, 114, 128, 0.2);
    color: #374151;
}

/* Model Info Popup */
.model-info-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 12px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    z-index: 10000;
    max-width: 400px;
    width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    animation: popupFadeIn 0.3s ease-out;
}

@keyframes popupFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.model-info-popup::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

.model-info-header {
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.model-info-header h3 {
    color: #374151;
    font-size: 18px;
    margin: 0;
}

.model-info-content {
    padding: 20px;
}

.model-info-content p {
    margin-bottom: 15px;
    color: #6b7280;
    line-height: 1.5;
}

.capabilities {
    background: rgba(248, 250, 252, 0.8);
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
}

.capabilities h4 {
    color: #374151;
    font-size: 14px;
    margin-bottom: 10px;
}

.capabilities ul {
    list-style: none;
    padding: 0;
    margin: 0 0 10px 0;
}

.capabilities li {
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
}

.model-info-actions {
    padding: 20px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.close-info-btn,
.select-model-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-info-btn {
    background: #f3f4f6;
    color: #6b7280;
}

.close-info-btn:hover {
    background: #e5e7eb;
}

.select-model-btn {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
}

.select-model-btn:hover {
    background: linear-gradient(135deg, #5b21b6, #7c3aed);
}

/* Model Selection Feedback */
.model-selection-feedback {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(16, 185, 129, 0.95);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    animation: feedbackSlideIn 0.3s ease-out;
    z-index: 100;
}

@keyframes feedbackSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feedback-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.feedback-icon {
    font-size: 16px;
}

.feedback-text {
    font-size: 14px;
    font-weight: 500;
}

/* Enhanced Parameter Labels */
.param-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 12px;
}

/* Mobile Responsive for Sidebar */
@media (max-width: 768px) {
    .settings-sidebar {
        width: 100vw;
        right: -100vw;
    }

    .model-item {
        padding: 10px 15px;
    }

    .model-name {
        font-size: 12px;
    }

    .model-description {
        font-size: 10px;
    }

    .model-actions {
        flex-direction: column;
        gap: 4px;
    }

    .model-select-btn,
    .model-info-btn {
        font-size: 9px;
        padding: 3px 6px;
    }

    .memory-controls {
        padding: 15px;
    }

    .memory-actions {
        flex-direction: column;
        gap: 8px;
    }

    .category-header {
        padding: 12px 15px;
    }

    .model-info-popup {
        width: 95vw;
        max-height: 90vh;
    }
}

/* Typing Indicator Enhancement */
.typing-indicator {
    display: none;
    padding: 16px 20px;
    margin-bottom: 24px;
}

.typing-indicator.show {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

.typing-dots {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 20px;
    border-bottom-left-radius: 6px;
    max-width: fit-content;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: #94a3b8;
    border-radius: 50%;
    animation: typingPulse 1.4s ease-in-out infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingPulse {

    0%,
    60%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    30% {
        transform: scale(1.2);
        opacity: 1;
    }
}

/* Additional Mobile Optimizations */

/* Prevent text selection on UI elements */
.header,
.input-actions,
.suggestions,
.settings-sidebar {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Allow text selection in messages and input */
.message-content,
textarea#messageInput {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* Improve button touch targets */
@media (max-width: 768px) {

    button,
    .suggestion,
    .file-btn,
    .send-btn,
    .settings-btn {
        min-height: 44px;
        min-width: 44px;
    }

    /* Better spacing for touch */
    .input-actions>* {
        margin: 0 2px;
    }

    /* Prevent accidental zooming */
    input,
    textarea,
    select {
        font-size: 16px !important;
    }

    /* Smooth momentum scrolling */
    .messages,
    .chat-messages,
    .sidebar-content {
        scroll-behavior: smooth;
    }

    @supports (-webkit-overflow-scrolling: touch) {
        .messages,
        .chat-messages,
        .sidebar-content {
            -webkit-overflow-scrolling: touch;
        }
    }

    /* Hide address bar on scroll */
    body {
        overflow-x: hidden;
    }

    /* Better focus states for accessibility */
    button:focus,
    input:focus,
    textarea:focus,
    select:focus {
        outline: 2px solid #6366f1;
        outline-offset: 2px;
    }

    /* Improve image display on mobile */
    .message-image,
    .generated-image-container img {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
    }

    /* Better loading states */
    .send-btn.loading {
        pointer-events: none;
    }

    /* Optimize animations for mobile */
    @media (prefers-reduced-motion: reduce) {

        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }
}

/* PWA-like experience */
@media (display-mode: standalone) {
    body {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
}

/* Dark mode mobile optimizations */
@media (max-width: 768px) and (prefers-color-scheme: dark) {
    .chat-container {
        background: rgba(30, 41, 59, 0.95);
    }

    .input-container {
        background: #1e293b;
        border-color: #475569;
    }

    textarea#messageInput {
        color: #f1f5f9;
    }

    textarea#messageInput::placeholder {
        color: #64748b;
    }
}

/* High DPI display optimizations */
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {

    .bot-avatar,
    .file-btn,
    .send-btn {
        image-rendering: -webkit-optimize-contrast;
    }

    @supports (image-rendering: crisp-edges) {
        .bot-avatar,
        .file-btn,
        .send-btn {
            image-rendering: crisp-edges;
        }
    }
}

/* Orientation change handling */
@media (max-width: 768px) {
    @media (orientation: portrait) {
        .suggestions {
            flex-wrap: nowrap;
        }
    }

    @media (orientation: landscape) {
        .suggestions {
            flex-wrap: nowrap;
            overflow-x: auto;
        }

        .header-text p {
            display: none;
        }
    }
}

/*
 Mobile Input Box Enhancements */
@media (max-width: 768px) {

    /* Improved textarea for mobile */
    textarea#messageInput {
        font-size: 16px !important;
        /* Prevent zoom on iOS */
        line-height: 1.4;
        padding: 4px 0;
        border-radius: 0;
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
        resize: none;
        overflow-y: hidden;
        word-wrap: break-word;
        white-space: pre-wrap;
        color: #1f2937 !important;
        /* Ensure text is visible */
        background: transparent !important;
        border: none !important;
        outline: none !important;
    }

    /* Better placeholder styling */
    textarea#messageInput::placeholder {
        color: #9ca3af !important;
        font-size: 15px;
        opacity: 0.7;
    }

    /* Input focus improvements */
    textarea#messageInput:focus {
        outline: none !important;
        border: none !important;
        box-shadow: none !important;
        color: #1f2937 !important;
        background: transparent !important;
    }

    /* Improved input actions layout */
    .input-actions {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }

    /* Better file button for mobile */
    .file-btn {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(99, 102, 241, 0.1);
        border: none;
        cursor: pointer;
        transition: all 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .file-btn:active {
        transform: scale(0.95);
        background: rgba(99, 102, 241, 0.2);
    }

    /* Active state when GPT Vision is on (customizable) */
    .file-btn.gpt-vision-active {
        margin-left: -50px;
        background: linear-gradient(135deg, #10b981, #059669);
        color: white;
        box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
        /* animation: visionPulse 2s ease-in-out infinite; */
    }

    /* Enhanced send button for mobile */
    .send-btn {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: linear-gradient(135deg, #6366f1, #8b5cf6);
        border: none;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all 0.2s ease;
        box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
        -webkit-tap-highlight-color: transparent;
    }

    .send-btn:active {
        transform: scale(0.95);
    }

    .send-btn:disabled {
        opacity: 0.6;
        cursor: not-allowed;
    }

    /* Input container improvements */
    .input-container {
        position: relative;
        background: rgba(255, 255, 255, 0.98) !important;
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(226, 232, 240, 0.8);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

    .input-container:focus-within {
        border-color: rgba(99, 102, 241, 0.5);
        box-shadow: 0 4px 20px rgba(99, 102, 241, 0.15);
    }

    /* Suggestions improvements for mobile */
    .suggestions {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        -ms-overflow-style: none;
        padding: 0 2px 8px 2px;
        margin-bottom: 12px;
    }

    .suggestions::-webkit-scrollbar {
        display: none;
    }

    @supports (-webkit-overflow-scrolling: touch) {
        .suggestions {
            -webkit-overflow-scrolling: touch;
        }
    }

    @supports (scrollbar-width: none) {
        .suggestions {
            scrollbar-width: none;
        }
    }

    .suggestion {
        flex-shrink: 0;
        padding: 8px 14px;
        background: rgba(99, 102, 241, 0.08);
        border: 1px solid rgba(99, 102, 241, 0.15);
        border-radius: 16px;
        font-size: 13px;
        color: #6366f1;
        white-space: nowrap;
        cursor: pointer;
        transition: all 0.2s ease;
        -webkit-tap-highlight-color: transparent;
    }

    .suggestion:active {
        transform: scale(0.95);
        background: rgba(99, 102, 241, 0.15);
    }

    /* Input area positioning */
    .input-area {
        position: sticky;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 10;
        background: rgba(248, 250, 252, 0.95);
        -webkit-backdrop-filter: blur(15px);
        backdrop-filter: blur(15px);
        border-top: 1px solid rgba(226, 232, 240, 0.6);
        padding: 12px;
        margin: 0;
    }

    /* Safe area handling for devices with notches */
    .input-area {
        padding-bottom: max(12px, env(safe-area-inset-bottom));
    }

    /* Keyboard handling improvements */
    .input-container.keyboard-open {
        position: fixed;
        bottom: 0;
        left: 12px;
        right: 12px;
        z-index: 1000;
    }

    /* Loading state for send button */
    .send-btn.loading {
        pointer-events: none;
    }

    .send-btn.loading svg {
        animation: spin 1s linear infinite;
    }

    /* Better touch targets */
    .file-btn,
    .send-btn,
    .suggestion,
    .model-selector {
        min-height: 44px;
        min-width: 44px;
    }

    /* Improved model selector for mobile */
    .model-selector-mobile .model-selector {
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: right 8px center;
        background-size: 12px;
        padding-right: 28px;
        cursor: pointer;
        font-weight: 500;
        color: #374151;
        line-height: 1.2;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* Focus states for accessibility */
    .file-btn:focus,
    .send-btn:focus,
    .suggestion:focus,
    .model-selector:focus,
    textarea#messageInput:focus {
        outline: 2px solid rgba(99, 102, 241, 0.5);
        outline-offset: 2px;
    }
}

/* Landscape mobile adjustments */
@media (max-width: 768px) and (orientation: landscape) {
    .input-area {
        padding: 8px 12px;
    }

    .input-container {
        padding: 10px 14px;
        
    }

    .suggestions {
        margin-bottom: 8px;
    }

    .suggestion {
        padding: 6px 12px;
        font-size: 12px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .input-container {
        border: 2px solid #000;
    }

    .send-btn {
        border: 2px solid #000;
    }

    .file-btn {
        border: 1px solid #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {

    .input-container,
    .send-btn,
    .file-btn,
    .suggestion {
        transition: none;
    }

    .send-btn.loading svg {
        animation: none;
    }
}

/* Compa
ct Model Selector for Mobile */
@media (max-width: 768px) {

    /* Make the model selector more compact */
    .model-selector-mobile {
        position: relative;
    }

    .model-selector-mobile .model-selector {
        /* Compact sizing */
        min-height: 24px;
        height: 24px;
        padding: 3px 18px 3px 6px;
        font-size: 9px;
        line-height: 1.1;

        /* Better visual styling */
        background: rgba(241, 245, 249, 0.95);
        border: 1px solid rgba(203, 213, 225, 0.8);
        border-radius: 4px;

        /* Improved dropdown arrow */
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236b7280'%3e%3cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3e%3c/svg%3e");
        background-size: 10px;
        background-position: right 3px center;
        padding-right: 18px;

        /* Text styling */
        color: #4b5563;
        font-weight: 500;

        /* Remove default styling */
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;

        /* Smooth transitions */
        transition: all 0.2s ease;
    }

    .model-selector-mobile .model-selector:focus {
        outline: none;
        border-color: rgba(99, 102, 241, 0.6);
        background: rgba(255, 255, 255, 0.98);
        box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
    }

    /* Compact option styling */
    .model-selector-mobile .model-selector option {
        padding: 4px 8px;
        font-size: 12px;
        background: white;
        color: #374151;
    }

    .model-selector-mobile .model-selector optgroup {
        font-size: 10px;
        font-weight: 600;
        color: #6b7280;
        background: #f9fafb;
        padding: 2px 8px;
    }

    /* Reduce overall input container size */
    .input-container {
        padding: 8px 12px;
        gap: 6px;
        margin-bottom: 60px;
    }

    /* Adjust input wrapper */
    .input-wrapper {
        gap: 8px;
    }

    /* Make textarea more compact */
    textarea#messageInput {
        min-height: 20px;
        line-height: 1.3;
        padding: 4px 0;
        color: #1f2937 !important;
        background: transparent !important;
        border: none !important;
        outline: none !important;
    }

    /* Compact buttons */
    .file-btn {
        width: 36px;
        height: 36px;
        border-radius: 8px;
    }

    .send-btn {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        margin-left: auto;
    }
}

/* Extra small screens (phones in portrait) */
@media (max-width: 480px) {
    .model-selector-mobile .model-selector {
        font-size: 14px;
    font-weight: 500;
    color: #111;

    height: auto;
    min-height: 32px;
    padding: 4px 28px 4px 12px;

    /* ensure full text shows */
    white-space: nowrap;      /* keep text in one line */
    overflow: visible;        /* don't hide text */
    text-overflow: clip;      /* remove "..." */
    width: auto;              /* expand to fit text */
    max-width: 100%;          /* don't overflow screen */

    /* arrow styling */
    background-size: 12px;
    background-position: right 8px center;
    background-repeat: no-repeat;

    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    }

    .input-container {
        padding: 6px 10px;
        margin-bottom: 60px;
    }

    .file-btn {
        width: 32px;
        height: 32px;
    }

    .send-btn {
        width: 36px;
        height: 36px;
    }
}

/* Critical Text Visibility Fix for Mobile */
@media (max-width: 768px) {

    /* Force text visibility in all states */
    textarea#messageInput,
    textarea#messageInput:focus,
    textarea#messageInput:active,
    textarea#messageInput:hover {
        color: #1f2937 !important;
        background-color: transparent !important;
        background: transparent !important;
        border: none !important;
        outline: none !important;
        box-shadow: none !important;
        -webkit-text-fill-color: #1f2937 !important;
        -webkit-opacity: 1 !important;
        opacity: 1 !important;
    }

    /* Ensure placeholder is visible but distinct */
    textarea#messageInput::placeholder,
    textarea#messageInput::-webkit-input-placeholder,
    textarea#messageInput::-moz-placeholder,
    textarea#messageInput:-ms-input-placeholder {
        color: #9ca3af !important;
        opacity: 0.7 !important;
        -webkit-text-fill-color: #9ca3af !important;
    }

    /* Input wrapper background for better contrast */
    .input-wrapper {
        background: rgba(255, 255, 255, 0.95);
        border-radius: 12px;
        padding: 8px 12px;
        min-height: 40px;
        display: flex;
        align-items: center;
    }

    /* Ensure input container has solid background */
    .input-container {
        background: rgba(255, 255, 255, 0.98) !important;
        border: 1px solid rgba(226, 232, 240, 0.9) !important;
    }

    /* Fix for dark mode if applicable */
    @media (prefers-color-scheme: dark) {

        textarea#messageInput,
        textarea#messageInput:focus,
        textarea#messageInput:active,
        textarea#messageInput:hover {
            color: #f9fafb !important;
            -webkit-text-fill-color: #f9fafb !important;
        }

        .input-wrapper {
            background: rgba(31, 41, 55, 0.95);
        }

        .input-container {
            background: rgba(31, 41, 55, 0.98) !important;
            border: 1px solid rgba(75, 85, 99, 0.9) !important;
        }
    }
}

/* Extra specificity for stubborn browsers */
@media (max-width: 768px) {
    .input-container textarea#messageInput {
        color: #1f2937 !important;
        background: none !important;
        background-color: transparent !important;
        -webkit-text-fill-color: #1f2937 !important;
    }

    .input-wrapper textarea#messageInput {
        color: #1f2937 !important;
        background: transparent !important;
        -webkit-text-fill-color: #1f2937 !important;
    }
}

/*
 Better Mobile Layout - Prioritize Text Input */
@media (max-width: 768px) {

    /* Ensure input container uses flexbox properly */
    .input-container {
        display: flex;
        flex-direction: column;
        gap: 4px;
        padding: 6px 10px;
    }

    /* Input wrapper should take most space */
    .input-wrapper {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
        min-height: 36px;
    }

    /* Textarea should expand to fill available space */
    textarea#messageInput {
        flex: 1;
        min-width: 0;
        /* Allow shrinking */
        width: 100%;
    }

    /* Model selector should be small and not interfere */
    .model-selector-mobile {
        width: auto;
        max-width: 80px;
        min-width: 60px;
        flex-shrink: 0;
        align-self: flex-start;
    }

    /* Compact buttons */
    .file-btn,
    .send-btn {
        flex-shrink: 0;
    }
}

/* Ultra compact for very small screens */
@media (max-width: 360px) {
    .model-selector-mobile {
        max-width: 70px;
        min-width: 50px;
    }

    .model-selector-mobile .model-selector {
        font-size: 7px;
        height: 20px;
        min-height: 20px;
        padding: 1px 14px 1px 3px;
        background-size: 8px;
        padding-right: 14px;
    }
}

/*
 Android-Specific Optimizations */
@media (max-width: 768px) {

    /* Ensure proper stacking order */
    .input-area>* {
        z-index: 1;
    }

    /* Model selector styling for Android */
    .model-selector-mobile {
        background: rgba(255, 255, 255, 0.98);
        border-radius: 8px;
        padding: 4px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    /* Text input area styling */
    .input-container {
        background: rgba(255, 255, 255, 0.98) !important;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
        border: 1px solid rgba(226, 232, 240, 0.8);
    }

    /* Ensure textarea gets full width */
    textarea#messageInput {
        flex: 1;
        min-width: 0;
        width: 100%;
        color: #1f2937 !important;
        background: transparent !important;
    }

    /* Compact action buttons */
    .input-actions {
        display: flex;
        gap: 6px;
        flex-shrink: 0;
        align-items: center;
    }

    .file-btn {
        width: 36px;
        height: 36px;
        border-radius: 8px;
    }

    .send-btn {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        margin-left: auto;
    }
}

/* Android Chrome specific fixes */
@supports (-webkit-touch-callout: none) {
    @media (max-width: 768px) {

        /* Fix for Android Chrome input issues */
        textarea#messageInput {
            -webkit-user-select: text;
            user-select: text;
            -webkit-touch-callout: default;
        }

        /* Prevent zoom on input focus */
        textarea#messageInput,
        select {
            font-size: 16px !important;
        }

        /* Better touch targets for Android */
        .model-selector-mobile .model-selector {
            min-height: 44px;
            height: 44px;
            padding: 12px 36px 12px 12px;
            font-size: 14px;
        }
    }
}

/* Anim
ations for better UX */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

/* Improved remove button */
.remove-image {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.remove-image:hover {
    background: #dc2626;
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Better loading states */
.send-btn.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Smooth transitions for all interactive elements */
.suggestion,
.file-btn,
.send-btn,
.model-selector,
.param-slider {
    transition: all 0.2s ease;
}