/*
  CoreAI 2 - Enhanced CSS
  Table of Contents:
  1. Root & Theme Variables
  2. Base Styles & Reset
  3. Layout & Container Styles
  4. Header & Navigation
  5. Sidebar & Conversations
  6. Chat Messages & Bubbles
  7. Message Actions & Editing
  8. Input Areas & Forms
  9. Code Blocks & Syntax Highlighting
  10. Welcome Screen & Prompts
  11. PWA Install Banner (Old - Replaced)
  12. Cookie Consent Banner
  13. Policy Modal
  14. Footer
  15. Splash Screen
  16. NEW PWA Install Banner
*/

/* 1. Root & Theme Variables */
:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;
    --ease-in-out: all 0.2s ease-in-out;
    --border-radius: 12px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.2);
    /* This variable is controlled by pwa.js to create space for the install banner */
    --pwa-banner-height: 0px;

    /* Light Theme */
    --c-bg-primary: #ffffff;
    --c-bg-secondary: #f8f9fa;
    --c-bg-tertiary: #e9ecef;
    --c-bg-muted: #f8f9fa;
    --c-bg-backdrop: rgba(255, 255, 255, 0.95);
    --c-bg-overlay: rgba(255, 255, 255, 0.8);

    --c-text-primary: #212529;
    --c-text-secondary: #6c757d;
    --c-text-tertiary: #adb5bd;
    --c-text-on-accent: #ffffff;

    --c-border-primary: #dee2e6;
    --c-border-secondary: #ced4da;
    --c-border-dashed: #ced4da;
    --c-input-focus-ring: rgba(92, 127, 230, 0.3);

    --c-accent: #5C7FE6;
    --c-accent-hover: #4a6ddb;
    --c-accent-darker: #3b5ac8;
    --c-user-message-bg: var(--c-accent);
    --c-user-message-text: var(--c-text-on-accent);
    --c-danger: #ef4444;
    --c-danger-hover: #dc2626;
    --c-warning: #f59e0b;
    --c-success: #10b981;

    --c-sidebar-bg: #ffffff;
    --c-sidebar-text: #343a40;
    --c-sidebar-hover-bg: #f1f3f5;
    --c-sidebar-active-bg: #e9ecef;
    --c-sidebar-border: #dee2e6;

    --c-code-bg: #1a1d23;
    --c-code-text: #f8f9fa;
    --c-code-border: #2d3748;
    --c-code-action-bg: #2d3748;
    --c-code-action-border: #4a5568;
    --c-code-action-text: #f8f9fa;

    --c-avatar-user: #5C7FE6;
    --c-avatar-bot: #6c757d;
    --c-avatar-icon-color: var(--c-text-secondary);

    --scrollbar-thumb: #adb5bd;
    --scrollbar-track: #f1f3f5;
    --scrollbar-width: 6px;
}

/* Dark Theme */
.dark-mode {
    --c-bg-primary: #111827;
    /* Very Dark Blue/Gray */
    --c-bg-secondary: #1F2937;
    /* Dark Slate */
    --c-bg-tertiary: #374151;
    /* Medium Gray */
    --c-bg-muted: #1F2937;
    --c-bg-backdrop: rgba(17, 24, 39, 0.85);
    --c-bg-overlay: rgba(31, 41, 55, 0.8);

    --c-text-primary: #E5E7EB;
    /* Softer Off-white */
    --c-text-secondary: #9CA3AF;
    /* Softer Gray */
    --c-text-tertiary: #6B7280;
    --c-text-on-accent: #FFFFFF;

    --c-border-primary: #374151;
    --c-border-secondary: #4B5563;
    --c-border-dashed: #4B5563;
    --c-input-focus-ring: rgba(59, 130, 246, 0.4);
    /* Blue focus ring */

    --c-accent: #3B82F6;
    /* Vibrant Blue */
    --c-accent-hover: #2563EB;
    --c-accent-darker: #1D4ED8;
    --c-user-message-bg: #374151;
    /* User message bubble background */
    --c-user-message-text: #F3F4F6;
    --c-danger: #F87171;
    --c-danger-hover: #EF4444;
    --c-warning: #FBBF24;
    --c-success: #34D399;

    --c-sidebar-bg: #1F2937;
    --c-sidebar-text: #F3F4F6;
    --c-sidebar-hover-bg: #374151;
    --c-sidebar-active-bg: #111827;
    --c-sidebar-border: #374151;

    --c-code-bg: #0d1117;
    /* Near-black for code blocks */
    --c-code-text: #E0E0E0;
    --c-code-border: #30363d;
    --c-code-action-bg: #21262d;
    --c-code-action-border: #30363d;
    --c-code-action-text: #F3F4F6;

    --c-avatar-user: #3B82F6;
    --c-avatar-bot: #9CA3AF;
    --c-avatar-icon-color: var(--c-text-primary);

    --scrollbar-thumb: #4B5563;
    --scrollbar-track: #1F2937;
}

/* 2. Base Styles & Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
    min-height: 100vh;
    background-color: var(--c-bg-secondary);
    color: var(--c-text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* Improved scrollbar styling */
::-webkit-scrollbar {
    width: var(--scrollbar-width);
    height: var(--scrollbar-width);
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--c-text-tertiary);
}

/* Selection styles */
::selection {
    background-color: var(--c-accent);
    color: var(--c-text-on-accent);
}

/* 3. Layout & Container Styles */
#app-container {
    width: 100%;
    height: 100vh;
    /* Restore to full height */
    display: flex;
    position: relative;
}

#chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    transition: margin-left 0.3s ease-in-out;
    position: relative;
}

/* Main content area */
main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    position: relative;
    /* Add padding to the bottom to make space for the PWA banner */
    padding-bottom: var(--pwa-banner-height, 0px);
    /* Add a smooth transition to the padding change */
    transition: padding-bottom 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 4. Header & Navigation */
.chat-header {
    background-color: var(--c-bg-backdrop);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border-primary);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--ease-in-out);
}

.chat-header .flex-shrink-0 {
    flex-shrink: 0;
}

.chat-header .flex-1 {
    flex: 1;
    text-align: center;
}

.chat-header h1 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--c-text-primary);
    margin: 0;
}

/* Header buttons */
#sidebar-toggle,
#theme-toggle {
    background: none;
    border: none;
    padding: 0.5rem;
    border-radius: 8px;
    color: var(--c-text-secondary);
    cursor: pointer;
    transition: var(--ease-in-out);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
}

#sidebar-toggle:hover,
#theme-toggle:hover {
    background-color: var(--c-bg-tertiary);
    color: var(--c-text-primary);
    transform: translateY(-1px);
}

#sidebar-toggle:active,
#theme-toggle:active {
    transform: translateY(0);
}

/* 5. Sidebar & Conversations - Enhanced Design */
#sidebar {
    background: linear-gradient(180deg, var(--c-sidebar-bg) 0%, var(--c-sidebar-bg) 100%);
    color: var(--c-sidebar-text);
    border-right: 1px solid var(--c-sidebar-border);
    width: 280px;
    height: 100vh;
    /* Restore to full height */
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    /* Remove height from transition */
    overflow: hidden;
}

#sidebar.sidebar-visible {
    transform: translateX(0);
}

#sidebar.sidebar-hidden {
    transform: translateX(-100%);
}

/* Sidebar Header */
.sidebar-header {
    padding: 1.5rem 1.25rem 1rem;
    border-bottom: 1px solid var(--c-sidebar-border);
    background: var(--c-sidebar-bg);
}

.sidebar-brand-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

#sidebar-close-button {
    background: none;
    border: none;
    padding: 0.5rem;
    position: absolute;
    right: 5px;
    top: 10px;
    border-radius: 8px;
    color: var(--c-text-secondary);
    cursor: pointer;
    transition: var(--ease-in-out);
    display: none;
    /* Hidden on mobile by default */
}

#sidebar-close-button:hover {
    background-color: var(--c-bg-tertiary);
    color: var(--c-text-primary);
}


.brand-logo {
    width: 40px;
    height: 40px;
    display: flex;
    margin-top: -3px;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--c-text-primary);
    line-height: 1.2;
}

.brand-tagline {
    font-size: 0.75rem;
    color: var(--c-text-secondary);
    font-weight: 500;
    margin-top: 0.125rem;
}

/* New Chat Button */
#new-chat-button {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--c-accent);
    border: none;
    border-radius: 12px;
    color: var(--c-text-on-accent);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px rgba(92, 127, 230, 0.3);
}

#new-chat-button:hover {
    background: var(--c-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(92, 127, 230, 0.4);
}

#new-chat-button:active {
    transform: translateY(0);
}

/* Conversation List */
#conversation-list-container {
    padding: 0 1rem;
}

.conversation-group {
    margin-bottom: 1rem;
}

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

.section-header {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--c-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

.conversation-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.conversation-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--ease-in-out);
    position: relative;
    border: 1px solid transparent;
}

.conversation-item:hover {
    background: var(--c-sidebar-hover-bg);
}

.conversation-item.active {
    background: var(--c-sidebar-active-bg);
    border-color: var(--c-accent);
}

.conversation-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.875rem;
    font-weight: 500;
    padding-right: 0.5rem;
    color: var(--c-text-primary);
}

/* Kebab menu */
.kebab-menu-container {
    position: relative;
    flex-shrink: 0;
    z-index: 5;
}

.conversation-item:hover .kebab-menu-container,
.kebab-menu-container.menu-visible {
    opacity: 1;
}

.kebab-menu {
    background: none;
    border: none;
    padding: 0.25rem;
    border-radius: 6px;
    color: var(--c-sidebar-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.kebab-menu:hover {
    background-color: var(--c-sidebar-hover-bg);
}

.kebab-menu-dropdown {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.25rem;
    background: var(--c-sidebar-bg);
    border: 1px solid var(--c-border-primary);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 10;
    width: 140px;
    opacity: 0;
    transform: translateY(-5px);
    transition: all 0.2s ease;
    pointer-events: none;
    backdrop-filter: blur(10px);
}

.kebab-menu-dropdown:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.kebab-menu-dropdown button {
    background: none;
    border: none;
    padding: 0.75rem 1rem;
    color: var(--c-sidebar-text);
    cursor: pointer;
    text-align: left;
    width: 100%;
    font-size: 0.875rem;
    transition: background-color 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.kebab-menu-dropdown button:hover {
    background-color: var(--c-sidebar-hover-bg);
}

.kebab-menu-dropdown button:first-child {
    border-radius: 8px 8px 0 0;
}

.kebab-menu-dropdown button:last-child {
    border-radius: 0 0 8px 8px;
    color: var(--c-danger);
}

.kebab-menu-dropdown button:last-child:hover {
    background-color: var(--c-danger);
    color: var(--c-text-on-accent);
}

/* Sidebar footer */
.sidebar-footer {
    border-top: 1px solid var(--c-sidebar-border);
    padding: 1rem 1.25rem;
    background: var(--c-sidebar-bg);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: background-color 0.2s;
    cursor: pointer;
}

.user-profile:hover {
    background-color: var(--c-sidebar-hover-bg);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-accent), var(--c-accent-hover));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

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

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--c-text-primary);
    line-height: 1.2;
}

.user-status {
    font-size: 0.75rem;
    color: var(--c-text-secondary);
}

/* --- Logo Theme Switching --- */
.logo-dark {
    display: none;
    /* Hide the dark logo by default */
}

.dark-mode .logo-dark {
    display: block;
    /* Show the dark logo in dark mode */
}

.dark-mode .logo-light {
    display: none;
    /* Hide the light logo in dark mode */
}


/* Scrollbar styling for sidebar */
#conversation-list-container::-webkit-scrollbar {
    width: 4px;
}

#conversation-list-container::-webkit-scrollbar-track {
    background: transparent;
}

#conversation-list-container::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 2px;
}

#conversation-list-container::-webkit-scrollbar-thumb:hover {
    background: var(--c-text-tertiary);
}

/* 6. Chat Messages & Bubbles */
#welcome-container,
#chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 5px;
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

#welcome-container {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

#chat-messages {
    display: none;
}

.messages-container {
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Message styles */
.message {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    max-width: 100%;
    animation: messageSlideIn 0.3s ease-out;
}

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

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

.user-message {
    flex-direction: row-reverse;
}

.message .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background-color: var(--c-bg-tertiary);
    color: var(--c-avatar-icon-color);
    transition: var(--ease-in-out);
    border: 2px solid transparent;
}

.user-message .avatar {
    background-color: var(--c-avatar-user);
    color: var(--c-text-on-accent);
}

.bot-message .avatar {
    background-color: var(--c-avatar-bot);
    color: var(--c-text-on-accent);
}

.message .avatar svg {
    width: 18px;
    height: 18px;
}

.message-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
    max-width: 100%;
}

.user-message .message-content {
    align-items: flex-end;
}

.bot-message .message-content {
    align-items: flex-start;
}

.message .text {
    padding: 0.875rem 1rem;
    border-radius: var(--border-radius);
    line-height: 1.6;
    word-wrap: break-word;
    word-break: break-word;
    position: relative;
    transition: var(--ease-in-out);
}

.user-message .text {
    background-color: var(--c-user-message-bg);
    color: var(--c-user-message-text);
    border-bottom-right-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.bot-message .text {
    background-color: var(--c-bg-primary);
    border: 1px solid var(--c-border-primary);
    color: var(--c-text-primary);
    border-bottom-left-radius: 4px;
    width: fit-content;
    max-width: 100%;
    box-shadow: var(--shadow-sm);
}

/* Loading indicator */
.loading-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--c-text-secondary);
    font-style: italic;
}

.loading-dots {
    display: flex;
    gap: 0.25rem;
}

.loading-dots span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--c-text-secondary);
    animation: loadingPulse 1.4s ease-in-out infinite both;
}

.loading-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes loadingPulse {

    0%,
    80%,
    100% {
        transform: scale(0.8);
        opacity: 0.5;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* 7. Message Actions & Editing */
.message-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem 0 0.25rem;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

.message:hover .message-actions {
    opacity: 1;
}

.action-btn {
    background: var(--c-bg-tertiary);
    border: 1px solid var(--c-border-primary);
    color: var(--c-text-secondary);
    cursor: pointer;
    padding: 0.375rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--ease-in-out);
    text-decoration: none;
}

.action-btn:hover {
    background-color: var(--c-bg-primary);
    color: var(--c-text-primary);
    border-color: var(--c-accent);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.action-btn:active {
    transform: translateY(0);
}

.action-btn svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.action-btn span {
    white-space: nowrap;
}

.zip-download-btn {
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    font-size: 0.8rem;
}

/* Edit message functionality */
.edit-container {
    width: 100%;
    animation: editSlideIn 0.2s ease-out;
}

@keyframes editSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

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

.edit-textarea {
    width: 100%;
    padding: 0.875rem;
    border-radius: 8px;
    background-color: var(--c-bg-primary);
    color: var(--c-text-primary);
    border: 1px solid var(--c-border-secondary);
    resize: none;
    min-height: 100px;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    transition: var(--ease-in-out);
}

.edit-textarea:focus {
    outline: none;
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px var(--c-input-focus-ring);
}

.edit-buttons {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    justify-content: flex-end;
}

.edit-buttons button {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s;
    min-width: 80px;
}

.edit-buttons button:first-of-type {
    background-color: var(--c-accent);
    color: var(--c-text-on-accent);
}

.edit-buttons button:first-of-type:hover {
    background-color: var(--c-accent-hover);
    transform: translateY(-1px);
}

.edit-buttons button:last-of-type {
    background-color: transparent;
    color: var(--c-text-secondary);
    border-color: var(--c-border-primary);
}

.edit-buttons button:last-of-type:hover {
    background-color: var(--c-bg-tertiary);
    color: var(--c-text-primary);
}

/* 8. Input Areas & Forms */
.input-container {
    background-color: var(--c-bg-backdrop);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--c-border-primary);
    padding: 0.75rem;
    transition: var(--ease-in-out);
    flex-shrink: 0;
}

.input-wrapper {
    max-width: 100%;
    margin: 0 auto;
    position: relative;
}

.input-wrapper.centered {
    display: flex;
    flex-direction: column;
}

#user-input,
#chat-input {
    width: 100%;
    padding: 0.875rem 3.5rem 0.875rem 1rem;
    border: 1px solid var(--c-border-secondary);
    border-radius: var(--border-radius);
    background-color: var(--c-bg-primary);
    color: var(--c-text-primary);
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    resize: none;
    transition: var(--ease-in-out);
    box-shadow: var(--shadow-sm);
}

#user-input::placeholder,
#chat-input::placeholder {
    color: var(--c-text-tertiary);
}

#user-input:focus,
#chat-input:focus {
    outline: none;
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px var(--c-input-focus-ring), var(--shadow-sm);
}

/* Send/Stop buttons */
#send-button,
#chat-send-button,
#stop-button,
#chat-stop-button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--ease-in-out);
    color: var(--c-text-on-accent);
}

#send-button,
#chat-send-button {
    background-color: var(--c-accent);
}

#send-button:hover,
#chat-send-button:hover {
    background-color: var(--c-accent-hover);
    transform: translateY(-50%) scale(1.05);
}

#stop-button,
#chat-stop-button {
    background-color: var(--c-danger);
}

#stop-button:hover,
#chat-stop-button:hover {
    background-color: var(--c-danger-hover);
    transform: translateY(-50%) scale(1.05);
}

#send-button svg,
#chat-send-button svg,
#stop-button svg,
#chat-stop-button svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* 9. Code Blocks & Syntax Highlighting */
.prose-styling {
    max-width: 100%;
    line-height: 1.7;
}

.prose-styling h1,
.prose-styling h2,
.prose-styling h3,
.prose-styling h4 {
    font-weight: 600;
    line-height: 1.3;
    margin: 1.5em 0 0.75em;
    color: var(--c-text-primary);
    scroll-margin-top: 80px;
}

.prose-styling h1 {
    font-size: 1.5rem;
    border-bottom: 2px solid var(--c-border-primary);
    padding-bottom: 0.5em;
}

.prose-styling h2 {
    font-size: 1.25rem;
    border-bottom: 1px solid var(--c-border-primary);
    padding-bottom: 0.3em;
}

.prose-styling h3 {
    font-size: 1.1rem;
}

.prose-styling h4 {
    font-size: 1rem;
}

.prose-styling p {
    margin-bottom: 1.25em;
}

.prose-styling ul,
.prose-styling ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25em;
}

.prose-styling li {
    margin-bottom: 0.5em;
    padding-left: 0.375em;
}

.prose-styling li>ul,
.prose-styling li>ol {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}

.prose-styling strong {
    font-weight: 600;
    color: inherit;
}

.prose-styling em {
    font-style: italic;
    color: inherit;
}

.prose-styling blockquote {
    margin: 1.5em 0;
    padding: 1em 1.5em;
    border-left: 4px solid var(--c-accent);
    background-color: var(--c-bg-muted);
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

.prose-styling hr {
    border: none;
    border-top: 2px dashed var(--c-border-dashed);
    margin: 2em 0;
    opacity: 0.6;
}

.prose-styling a {
    color: var(--c-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.prose-styling a:hover {
    border-bottom-color: var(--c-accent);
}

.prose-styling table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.875rem;
}

.prose-styling th,
.prose-styling td {
    padding: 0.75rem;
    border: 1px solid var(--c-border-primary);
    text-align: left;
}

.prose-styling th {
    background-color: var(--c-bg-tertiary);
    font-weight: 600;
}

.prose-styling tr:nth-child(even) {
    background-color: var(--c-bg-muted);
}

/* Code blocks */
pre {
    background-color: var(--c-code-bg);
    color: var(--c-code-text);
    padding: 1.25rem;
    border-radius: 8px;
    position: relative;
    margin: 1.25rem 0;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    line-height: 1.5;
    overflow-x: auto;
    border: 1px solid var(--c-code-border);
    box-shadow: var(--shadow-sm);
}

pre code {
    background: none;
    padding: 0;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

/* Inline code */
.prose-styling code:not(pre code) {
    background-color: var(--c-bg-tertiary);
    color: var(--c-text-primary);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-size: 0.85em;
    font-family: var(--font-mono);
    border: 1px solid var(--c-border-primary);
}

/* Code actions */
.code-actions {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    gap: 0.5rem;
    background-color: var(--c-bg-overlay);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 0.375rem;
    border-radius: 6px;
    border: 1px solid var(--c-code-border);
    opacity: 0;
    transition: opacity 0.2s ease;
}

pre:hover .code-actions {
    opacity: 1;
}

.code-actions button {
    background-color: var(--c-code-action-bg);
    color: var(--c-code-action-text);
    border: 1px solid var(--c-code-action-border);
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}

.code-actions button:hover {
    background-color: var(--c-accent);
    border-color: var(--c-accent);
    color: var(--c-text-on-accent);
    transform: translateY(-1px);
}

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

.code-actions button svg {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
}

/* Split layout for code and text */
.bot-message .text.split-layout {
    display: flex;
    gap: 1.5rem;
    width: 100%;
    padding: 0;
    background-color: transparent;
    border: none;
    box-shadow: none;
}

/* 14. Responsive Design */

/* Mobile & Tablet */
@media (max-width: 1023px) {
    .bot-message .text.split-layout {
        flex-direction: column;
    }

    .split-layout .text-column {
        order: 1;
        /* Text on top */
        padding: 1.25rem;
        background-color: var(--c-bg-primary);
        border: 1px solid var(--c-border-primary);
        border-radius: var(--border-radius);
    }

    .split-layout .code-column {
        order: 2;
        /* Code below */
        max-height: 400px;
        overflow-y: auto;
    }
}

/* Mobile specific changes */
@media (max-width: 767px) {
    .messages-container {
        max-width: 23rem;
    }

    .message {
        flex-direction: column;
        gap: 0.5rem;
    }

    .user-message {
        align-items: flex-end;
        flex-direction: column;
    }

    .message-content {
        max-width: 100%;
        width: 100%;
    }
}


/* Desktop */
@media (min-width: 1024px) {

    #welcome-container,
    #chat-messages,
    .input-container {
        padding-left: 2rem;
        padding-right: 2rem;
    }

    .messages-container,
    .input-wrapper {
        max-width: 128rem;
    }

    .bot-message .text.split-layout {
        flex-direction: row;
        align-items: flex-start;
    }

    .split-layout .text-column {
        /* FIX: Changed to a 50/50 split */
        flex: 1;
        min-width: 0;
        padding: 1.25rem;
        background-color: var(--c-bg-primary);
        border: 1px solid var(--c-border-primary);
        border-radius: var(--border-radius);
        box-shadow: var(--shadow-sm);
        order: 1;
        /* FIX: Ensure word wrapping for prose */
        word-wrap: break-word;
    }

    .split-layout .code-column {
        /* FIX: Changed to a 50/50 split */
        flex: 1;
        min-width: 0;
        max-height: 80vh;
        /* Adjusted for better screen fit */
        overflow-y: auto;
        padding-left: 1rem;
        order: 2;
        position: sticky;
        top: 0px;
        /* Sticky below header */
    }

    /* FIX: Added styles for word wrapping in both columns */
    .text-column.prose-styling,
    .code-column.prose-styling {
        word-wrap: break-word;
        word-break: break-word;
    }

    .code-column pre {
        margin-top: 0;
        white-space: pre-wrap;
        word-break: break-all;
    }
}

/* 10. Welcome Screen & Prompts - Updated */
.welcome-container {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    height: 100%;
    padding-bottom: 2rem;
}

.prompt-menu {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    max-width: 900px;
    margin: 0 auto 2rem;
    padding: 0 1rem;
    overflow-y: auto;
}

.prompt-btn {
    padding: 0.75rem 1rem;
    border: 1px solid var(--c-border-secondary);
    background-color: var(--c-bg-primary);
    color: var(--c-text-primary);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s;
    text-align: center;
    word-wrap: break-word;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    min-width: fit-content;
    width: auto;
    flex-shrink: 0;
}

.prompt-btn:hover {
    background-color: var(--c-bg-muted);
    border-color: var(--c-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.prompt-btn:active {
    transform: translateY(0);
}

.prompt-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(92, 127, 230, 0.1), transparent);
    transition: left 0.5s;
}

.prompt-btn:hover::before {
    left: 100%;
}

/* Responsive adjustments for prompt menu */
@media (max-width: 768px) {
    .prompt-menu {
        gap: 0.5rem;
        padding: 0 0.5rem;
    }

    .prompt-btn {
        padding: 0.625rem 0.875rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .prompt-menu {
        max-width: 100%;
        gap: 0.5rem;
        flex-wrap: wrap;
        display: flex;
        justify-content: center;
        margin: 0 auto 2rem;
    }

    .prompt-btn {
        width: fit-content;
        white-space: normal;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* 11. PWA Install Banner (Old - Replaced by section 16) */
/* This section is intentionally left blank. The new styles are in section 16. */


/* 12. Cookie Consent Banner */
#cookie-consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--c-bg-backdrop);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1001;
    border-top: 1px solid var(--c-border-primary);
    padding: 1rem;
    animation: cookie-banner-slide-in 0.5s ease-out forwards;
}

@keyframes cookie-banner-slide-in {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

#cookie-consent-banner.hidden {
    display: none;
}

.cookie-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.cookie-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--c-text-primary);
}

.cookie-content p {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--c-text-secondary);
    margin-bottom: 1rem;
}

.cookie-content a {
    color: var(--c-accent);
    text-decoration: underline;
    cursor: pointer;
}

.cookie-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.cookie-actions button {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--ease-in-out);
}

#accept-cookies-btn {
    background-color: var(--c-accent);
    color: var(--c-text-on-accent);
}

#accept-cookies-btn:hover {
    background-color: var(--c-accent-hover);
}

#manage-cookies-btn {
    background-color: var(--c-bg-tertiary);
    color: var(--c-text-primary);
}

#manage-cookies-btn:hover {
    background-color: var(--c-border-primary);
}

/* 13. Policy Modal */
#policy-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

#policy-modal.hidden {
    display: none;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--c-bg-primary);
    color: var(--c-text-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 800px;
    height: 80vh;
    display: flex;
    flex-direction: column;
    position: relative;
    animation: modal-fade-in 0.3s ease-out;
}

@keyframes modal-fade-in {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

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

#modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--c-bg-tertiary);
    border: none;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: var(--c-text-secondary);
    transition: var(--ease-in-out);
}

#modal-close-btn:hover {
    background-color: var(--c-border-primary);
    transform: rotate(90deg);
}

#modal-body {
    padding: 2rem;
    overflow-y: auto;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

#modal-body h1 {
    color: var(--c-text-primary);
}

#modal-body h2 {
    color: var(--c-text-primary);
}

#modal-body a {
    color: var(--c-accent);
}

/* 14. Footer */
.app-footer {
    text-align: center;
    padding-top: 1rem;
    font-size: 0.75rem;
    color: var(--c-text-tertiary);
}

.app-footer p {
    margin: 0.25rem 0;
}

.app-footer a {
    color: var(--c-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.app-footer a.policy-link {
    cursor: pointer;
    text-decoration: underline;
}

.app-footer a:hover {
    color: var(--c-accent);
}


/* --- 15. Splash Screen Progress Bar --- */
#loading-progress-container {
    width: 200px;
    height: 8px;
    background-color: var(--c-bg-tertiary);
    border-radius: 4px;
    margin: 2rem auto 0;
    overflow: hidden;
}

#loading-progress-bar {
    width: 0%;
    height: 100%;
    background-color: var(--c-accent);
    border-radius: 4px;
    transition: width 0.3s ease-in-out;
}

#loading-status-text {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--c-text-secondary);
    font-family: var(--font-mono);
}


/* --- 16. NEW PWA INSTALL BANNER --- */
.pwa-install-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--c-bg-primary);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    border-top: 1px solid var(--c-border-primary);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
    z-index: 999;
}

.pwa-install-banner.minimized {
    transform: translateY(calc(100% - 36px));
}

/* This class is added by JS to trigger the slide-out animation */
.pwa-install-banner.removing {
    transform: translateY(100%);
}

.pwa-peek-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--c-bg-tertiary);
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    border-bottom: 1px solid var(--c-border-primary);
    gap: 0.5rem;
}

.pwa-peek-bar span {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--c-text-secondary);
}

.pwa-peek-bar:hover {
    background-color: var(--c-border-primary);
}

.pwa-peek-bar .pwa-arrow {
    width: 24px;
    height: 24px;
    color: var(--c-text-secondary);
    transition: transform 0.3s ease-in-out;
}

.pwa-install-banner:not(.minimized) .pwa-arrow {
    transform: rotate(180deg);
}

.pwa-content {
    display: flex;
    align-items: center;
    padding: 1rem;
    padding-top: calc(1rem + 36px);
    gap: 1rem;
}

.pwa-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.pwa-text {
    flex-grow: 1;
    min-width: 0;
}

.pwa-text strong {
    font-size: 1rem;
    font-weight: 600;
    display: block;
    color: var(--c-text-primary);
}

.pwa-text p {
    font-size: 0.875rem;
    color: var(--c-text-secondary);
    margin: 0.1rem 0 0 0;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pwa-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pwa-button {
    border: none;
    cursor: pointer;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.pwa-button.install {
    background-color: var(--c-accent);
    color: var(--c-text-on-accent);
    padding: 0.6rem 1.2rem;
    font-size: 0.875rem;
    box-shadow: var(--shadow-sm);
}

.pwa-button.install:hover {
    background-color: var(--c-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.pwa-button.dismiss {
    background-color: transparent;
    color: var(--c-text-secondary);
    width: 32px;
    height: 32px;
    font-size: 1.5rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pwa-button.dismiss:hover {
    background-color: var(--c-bg-tertiary);
    color: var(--c-text-primary);
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .pwa-content {
        padding: 0.75rem;
        padding-top: calc(0.75rem + 36px);
    }

    .pwa-text p {
        display: none;
    }

    .pwa-button.install {
        padding: 0.5rem 1rem;
    }
}

/* Dark mode adjustments */
.dark-mode .pwa-install-banner {
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.4);
}

.dark-mode .pwa-peek-bar {
    background-color: var(--c-bg-secondary);
    border-bottom: 1px solid var(--c-border-primary);
}

.dark-mode .pwa-button.dismiss:hover {
    color: var(--c-text-primary);
}

/* --- 17. Layout Adjustments for Banner --- */

/* Use the CSS variable to adjust the height of the main app container and sidebar */
#app-container,
#sidebar {
    /* Use calc() to subtract the banner's height from the full viewport height */
    height: calc(100vh - var(--pwa-banner-height, 0px));
    /* Add a smooth transition to the height change */
    transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
" in the canvas. I would like you to add the code for another dark theme called "Dark mode 2". For this theme, I want you to change the following CSS variables: --c-bg-primary, --c-bg-secondary, --c-bg-tertiary, --c-bg-muted, --c-bg-backdrop, --c-bg-overlay, --c-text-primary, --c-text-secondary, --c-text-tertiary, --c-text-on-accent, --c-border-primary, --c-border-secondary, --c-border-dashed, --c-input-focus-ring, --c-accent, --c-accent-hover, --c-accent-darker, --c-user-message-bg, --c-user-message-text, --c-danger, --c-danger-hover, --c-warning, --c-success, --c-sidebar-bg, --c-sidebar-text, --c-sidebar-hover-bg, --c-sidebar-active-bg, --c-sidebar-border, --c-code-bg, --c-code-text, --c-code-border, --c-code-action-bg, --c-code-action-border, --c-code-action-text, --c-avatar-user, --c-avatar-bot, --c-avatar-icon-color, --scrollbar-thumb, and --scrollbar-track to a different dark color scheme than "Dark mode".

In your response, please ensure to include a "Dark mode 2" selector in the stylesheet and define a unique dark color scheme for this theme. Additionally, do not forget to add the updated table of contents, including a section for the new "Dark mode 2" theme.