/* Modern Dark Theme with Spaceship Design v0.2.1 - Mobile First Approach */

/* CSS Custom Properties (Variables) */
:root {
    --primary-bg: #0a0a0f;
    --secondary-bg: #151520;
    --tertiary-bg: #1e1e2f;
    --accent-color: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --text-primary: #ffffff;
    --text-secondary: #a0a0c0;
    --text-muted: #6c6c8a;
    --border-color: #2a2a3a;
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --error-color: #ff4444;
    --spaceship-blue: #0066ff;
    --neon-glow: 0 0 10px var(--accent-glow), 0 0 20px var(--accent-glow);
    --border-radius-sm: 12px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 24px;
    /* Mobile viewport height variable */
    --mobile-vh: 100vh;
}

/* Base styles - Mobile First */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--primary-bg) 0%, #0f0f1f 100%);
    color: var(--text-primary);
    overflow: hidden;
    height: var(--mobile-vh);
    font-size: 16px; /* Prevent iOS zoom on focus */
    line-height: 1.4;
}

/* Set mobile viewport height dynamically */
@supports (-webkit-touch-callout: none) {
    /* iOS Safari specific */
    body {
        height: -webkit-fill-available;
    }

    .app-container,
    .main-content {
        height: -webkit-fill-available;
    }
}

/* Mobile viewport height adjustment */
@media screen and (max-width: 768px) {
    :root {
        --mobile-vh: 100vh;
    }
}

/* Standard approach for mobile viewport height */
@media screen and (max-width: 768px) and (max-height: 800px) {
    :root {
        --mobile-vh: calc(var(--vh, 1vh) * 100);
    }

    body {
        height: var(--mobile-vh);
    }

    @supports (height: 100dvh) {
        :root {
            --mobile-vh: 100dvh;
        }

        body {
            height: 100dvh;
        }
    }
}

/* iPad-specific fixes for viewport height and layout */
@media screen and (min-width: 768px) and (max-width: 1024px) {
    /* For iPad devices in both portrait and landscape */
    :root {
        --mobile-vh: calc(var(--vh, 1vh) * 100);
    }

    body {
        height: var(--mobile-vh);
        padding-top: 1px; /* Prevent iOS Safari address bar issues */
    }

    .messages-container {
        padding-bottom: 80px; /* Adjust for larger device to ensure last message is visible */
    }

    /* Ensure proper layout for iPad */
    .app-container {
        height: var(--mobile-vh);
    }

    /* Ensure top content is visible */
    .main-content {
        padding-top: 10px; /* Ensure content doesn't get cut off at top */
    }
}

/* Additional fix for iPad portrait mode */
@media screen and (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    .messages-container {
        padding-bottom: 140px; /* More padding in portrait for larger device + to fix 10px issue */
    }

    /* Adjust main content height to align better with sidebars in portrait */
    .main-content {
        height: calc(100vh - 24px) !important; /* Use full height with !important to ensure override */
    }

    /* Also adjust sidebar height to match main content in portrait */
    .sidebar {
        height: calc(100vh - 48px) !important; /* Use full height with !important to ensure override */
    }
}

/* Additional fix for iPad landscape mode */
@media screen and (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    .messages-container {
        padding-bottom: 100px; /* Adjust padding for landscape to fix 10px issue */
    }

    /* Ensure main content and sidebar heights align properly in landscape */
    .main-content {
        height: calc(100vh) !important; /* Use full height with !important to ensure override */
    }

    .sidebar {
        height: calc(100vh) !important; /* Use full height with !important to ensure override */
    }
}

/* Specific CSS for iPad to ensure toggle buttons are visible */
@media screen and (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    .sidebar-toggle {
        display: flex !important;
        z-index: 1001; /* Ensure toggle buttons are above other content */
    }

    .left-toggle {
        left: 12px; /* Keep standard margin from edge */
    }

    .right-toggle {
        right: 12px; /* Keep standard margin from edge */
    }

    /* Adjust sidebar positioning for iPad */
    .left-sidebar {
        left: 2px; /* Reduced margin from edge */
        margin: 2px;
    }

    .right-sidebar {
        right: 2px; /* Reduced margin from edge */
        margin: 2px;
    }

    .main-content {
        margin-left: 274px; /* 250px sidebar + 24px margin */
        margin-right: 274px; /* 250px sidebar + 24px margin */
    }

    .main-content.left-sidebar-collapsed {
        margin-left: 12px;
    }

    .main-content.right-sidebar-collapsed {
        margin-right: 12px;
    }

    .main-content.both-sidebars-collapsed {
        margin-left: 12px;
        margin-right: 12px;
    }
}

/* Additional iPad-specific adjustments for landscape */
@media screen and (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    .sidebar-toggle {
        display: flex !important;
        z-index: 1001; /* Ensure toggle buttons are above other content */
    }

    .left-toggle {
        left: 12px; /* Keep standard margin from edge */
    }

    .right-toggle {
        right: 12px; /* Keep standard margin from edge */
    }

    /* Adjust sidebar positioning for iPad landscape */
    .left-sidebar {
        left: 12px; /* Maintain margin from edge */
        margin: 12px;
    }

    .right-sidebar {
        right: 12px; /* Maintain margin from edge */
        margin: 12px;
    }

    .main-content {
        margin-left: 274px; /* 250px sidebar + 12px padding + 12px margin */
        margin-right: 274px; /* 250px sidebar + 12px padding + 12px margin */
    }

    .main-content.left-sidebar-collapsed {
        margin-left: 12px;
    }

    .main-content.right-sidebar-collapsed {
        margin-right: 12px;
    }

    .main-content.both-sidebars-collapsed {
        margin-left: 12px;
        margin-right: 12px;
    }

    .left-sidebar, .right-sidebar {
        width: 300px; /* Standard width for landscape */
    }
}

/* Ensure mobile view remains unchanged */
@media screen and (max-width: 767px) {
    .sidebar {
        width: 100%;
        height: 100%;
        background: var(--secondary-bg);
        display: flex;
        flex-direction: column;
        border-radius: 0;
        position: fixed;
        top: 0;
        bottom: 0;
        z-index: 1001;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }

    .left-sidebar {
        left: 0;
    }

    .right-sidebar {
        right: 0;
        transform: translateX(100%);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    }

    .sidebar.collapsed:not(.active) {
        transform: translateX(-100%);
    }

    .right-sidebar.collapsed:not(.active) {
        transform: translateX(100%);
    }

    .main-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        background: transparent;
        padding: 10px;
        border-radius: var(--border-radius-sm);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        height: var(--mobile-vh);
        overflow: hidden;
    }

    .main-content.with-sidebars {
        padding-left: 0;
        padding-right: 0;
    }

    .chat-input-container {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        z-index: 1000;
        background: var(--secondary-bg);
        border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
        box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.3);
        padding: 10px 5px 10px 5px;
        box-sizing: border-box;
    }

    /* Override any potential desktop styles that might be affecting mobile */
    .sidebar-toggle {
        display: none !important;
    }
}

/* App Container - Mobile First */
.app-container {
    display: flex;
    height: var(--mobile-vh);
    background:
        radial-gradient(circle at 20% 80%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 102, 255, 0.1) 0%, transparent 50%);
    position: relative;
    overflow: hidden;
}

/* Use dvh units when available to better handle virtual keyboard on mobile devices */
@supports (height: 100dvh) {
    .app-container {
        height: 100dvh;
    }
}

/* Common Sidebar Styles - Mobile First */
.sidebar {
    width: 100%;
    height: 100%;
    background: var(--secondary-bg);
    display: flex;
    flex-direction: column;
    border-radius: 0;
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.left-sidebar {
    left: 0;
}

.right-sidebar {
    right: 0;
    transform: translateX(100%);
}

.sidebar.active {
    transform: translateX(0);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.sidebar.collapsed:not(.active) {
    transform: translateX(-100%);
}

.right-sidebar.collapsed:not(.active) {
    transform: translateX(100%);
}

/* Main Content - Mobile First */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: transparent;
    padding: 10px;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    height: var(--mobile-vh);
    overflow: hidden;
    margin: 0 !important; /* Ensure no margins override on mobile */
}

.main-content.with-sidebars {
    padding-left: 0;
    padding-right: 0;
}

/* Mobile-specific sidebar toggle */
.sidebar-toggle {
    display: none; /* Will be shown on tablet+ */
}

/* Mobile navigation */
.mobile-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: var(--tertiary-bg);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 100;
}

.mobile-nav button {
    background: var(--tertiary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-nav button:hover {
    background: var(--accent-color);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--neon-glow);
}

/* Top bar scanline */
.top-scanline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    animation: scanline 3s linear infinite;
    z-index: 2000;
    pointer-events: none; /* Allow clicks to pass through */
}

@keyframes scanline {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Chat container - mobile first */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-width: 100%;
    width: 100%;
    margin: 0;
    padding: 5px;
    background: transparent;
    border-radius: 0;
    position: relative;
    flex: 1;
    overflow: hidden;
    box-sizing: border-box;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 10px 5px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background: transparent;
    margin-bottom: 0;
    padding-bottom: 80px; /* Add padding to account for input height and ensure last message is visible */
    -webkit-overflow-scrolling: touch; /* Enable momentum scrolling for iOS */
}

.message {
    display: flex;
    gap: 8px;
    max-width: 95%;
    animation: messageSlide 0.3s ease-out;
    word-wrap: break-word;
    overflow-wrap: break-word;
    min-width: 0; /* Allows flex items to shrink below content size */
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.ai-message {
    align-self: flex-start;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), var(--spaceship-blue));
    flex-shrink: 0;
}

.user-message .message-avatar {
    background: linear-gradient(135deg, var(--success-color), #00cc66);
}

.message-content {
    background: rgba(21, 21, 32, 0.7);
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    line-height: 1.4;
    backdrop-filter: blur(10px);
    font-size: 0.95rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: calc(100% - 40px); /* Account for avatar width and gap */
    box-sizing: border-box;
}

.user-message .message-content {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.9), rgba(0, 68, 204, 0.9));
    border: none;
}

/* Mobile input container - always visible at the bottom */
.chat-input-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    background: var(--secondary-bg);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.3);
    padding: 10px 5px 10px 5px;
    box-sizing: border-box;
}

/* Ensure no horizontal scrolling on mobile */
body {
    overflow-x: hidden;
    max-width: 100vw;
}

.input-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(21, 21, 32, 0.9);
    border: 1px solid rgba(42, 42, 58, 0.7);
    border-radius: var(--border-radius-xl);
    padding: 8px 10px 8px 15px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.input-wrapper:focus-within {
    border-color: var(--accent-color);
    box-shadow: var(--neon-glow);
}

.chat-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 1rem;
    padding: 10px 0;
    min-height: 40px;
    max-height: 120px;
    overflow-y: auto;
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.action-btn, .send-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: var(--tertiary-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover, .send-btn:hover {
    background: var(--accent-color);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--neon-glow);
}

.send-btn {
    background: linear-gradient(135deg, var(--accent-color), var(--spaceship-blue));
    color: white;
}

/* Sidebar header and content */
.sidebar-header {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    background: var(--tertiary-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
}

.logo {
    font-size: 1.6rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-color), var(--spaceship-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2px;
}

.version-display {
    font-size: 0.85rem; /* Slightly smaller text */
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 4px; /* Reduced margin for more compact spacing */
    font-weight: 500;
}

.new-chat-btn {
    width: 100%;
    padding: 10px;
    background: linear-gradient(135deg, var(--accent-color), var(--spaceship-blue));
    border: none;
    border-radius: var(--border-radius-md);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.95rem;
}

.new-chat-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--neon-glow);
}

.chat-history {
    flex: 1;
    padding: 10px;
    overflow-y: auto;
}

.chat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    margin-bottom: 6px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.chat-item:hover {
    background: var(--tertiary-bg);
    color: var(--text-primary);
}

.chat-item.active {
    background: linear-gradient(135deg, var(--tertiary-bg), rgba(0, 212, 255, 0.1));
    color: var(--text-primary);
    border-left: 3px solid var(--accent-color);
}

.uploaded-files {
    padding: 15px 10px;
    border-top: 1px solid var(--border-color);
}

.uploaded-files h3 {
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border-radius: var(--border-radius-sm);
    background: var(--tertiary-bg);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.file-item:hover {
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
}

.task-manager {
    flex: 1;
    padding: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.development-notice {
    text-align: center;
    padding: 30px 15px;
    background: var(--tertiary-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    max-width: 300px;
}

.development-notice i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.development-notice h4 {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.development-notice p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.notice-text {
    font-size: 0.85rem;
    line-height: 1.3;
}

/* Loading Animation */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px;
}

.typing-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-color);
    animation: typing 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Tablet Styles - Updated to handle iPad properly */
@media (min-width: 768px) {
    .sidebar {
        width: 250px;
        max-width: 250px;
        position: absolute;
        transform: translateX(0);
        height: calc(100vh - 24px);
        margin: 12px;
        border-radius: var(--border-radius-lg);
        overflow: hidden; /* Changed from visible to hidden to ensure border radius is visible */
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        display: flex;
        flex-direction: column;
    }

    .left-sidebar {
        left: 2px;
    }

    .right-sidebar {
        right: 2px;
        transform: translateX(0);
    }

    /* Ensure sidebar content fits properly within bounds */
    .chat-history, .task-manager {
        flex: 1;
        overflow-y: auto;
    }

    /* Ensure uploaded files section doesn't push footer down */
    .uploaded-files {
        margin-top: auto;
    }

    .sidebar.collapsed {
        transform: translateX(-100%);
        opacity: 0;
        pointer-events: none;
    }

    .right-sidebar.collapsed {
        transform: translateX(100%);
    }

    /* Show sidebar toggle buttons on tablet+ */
    .sidebar-toggle {
        display: flex !important;
        position: absolute;
        top: calc(50% - 20px);
        width: 20px;
        height: 40px;
        background: var(--tertiary-bg);
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1000;
        transition: all 0.3s ease;
        padding: 0;
        outline: none;
        /* Add subtle glow effect */
        box-shadow: 0 0 5px rgba(42, 42, 58, 0.5);
    }

    .left-toggle {
        left: 12px;
        border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
        border-left: none;
        /* Position above sidebars */
        z-index: 1002;
    }

    .right-toggle {
        right: 12px;
        border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
        border-right: none;
        /* Position above sidebars */
        z-index: 1002;
    }

    .sidebar-toggle:hover {
        background: var(--accent-color);
        color: white;
        transform: scale(1.1);
        box-shadow: var(--neon-glow);
    }

    /* Enhanced focus state for accessibility */
    .sidebar-toggle:focus {
        outline: 1px solid var(--accent-color);
        outline-offset: 0;
        box-shadow: var(--neon-glow);
    }

    /* Active state for better visual feedback */
    .sidebar-toggle:active {
        transform: scale(0.95);
    }

    /* Animation for toggle button icon */
    .sidebar-toggle i {
        transition: transform 0.2s ease;
    }

    /* Animation when sidebar is collapsed */
    .sidebar.collapsed + .sidebar-toggle i,
    .left-sidebar.collapsed ~ .sidebar-toggle.left-toggle i,
    .right-sidebar.collapsed ~ .sidebar-toggle.right-toggle i {
        transform: rotate(180deg);
    }

    /* Special styling for small screens */
    @media (max-width: 1024px) {
        .sidebar-toggle {
            width: 24px;
            height: 48px;
        }

        .left-toggle {
            left: 8px;
        }

        .right-toggle {
            right: 8px;
        }
    }

    /* Improved focus indicators for accessibility */
    .sidebar-toggle:focus-visible {
        outline: 1px solid var(--accent-color);
        outline-offset: 0;
        box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.3);
    }

    /* Adjust main content for sidebars */
    .main-content {
        padding: 12px;
        margin: 12px;
        margin-left: 274px; /* 250px sidebar + 24px margin */
        margin-right: 274px; /* 250px sidebar + 24px margin */
        min-width: 500px;
        height: calc(100vh - 24px);
    }

    /* Adjust for collapsed sidebars */
    .main-content.left-sidebar-collapsed {
        margin-left: 12px;
    }

    .main-content.right-sidebar-collapsed {
        margin-right: 12px;
    }

    .main-content.both-sidebars-collapsed {
        margin-left: 12px;
        margin-right: 12px;
    }

    /* Hide mobile nav on tablet+ */
    .mobile-nav {
        display: none;
    }

    /* Desktop chat container */
    .chat-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 10px;
        background: rgba(14, 14, 29, 0.6);
        backdrop-filter: blur(10px);
        border-radius: var(--border-radius-lg);
    }

    .messages-container {
        padding: 20px 0;
        gap: 20px;
    }

    .message {
        max-width: 85%;
        gap: 10px;
    }

    .message-avatar {
        width: 40px;
        height: 40px;
    }

    .message-content {
        padding: 15px 20px;
        border-radius: var(--border-radius-lg);
        font-size: 1rem;
    }

    .user-message .message-content {
        background: linear-gradient(135deg, rgba(0, 102, 255, 0.9), rgba(0, 68, 204, 0.9));
    }

    /* Desktop input container */
    .chat-input-container {
        position: relative;
        bottom: auto;
        left: auto;
        right: auto;
        width: auto;
        z-index: auto;
        background: transparent;
        border-radius: var(--border-radius-xl);
        box-shadow: none;
        padding: 5px 0 0 0;
        margin-top: 10px;
    }

    .input-wrapper {
        gap: 10px;
        padding: 12px 15px;
        border-radius: var(--border-radius-xl);
    }

    .chat-input {
        padding: 15px 0;
        min-height: 45px;
    }

    .action-btn, .send-btn {
        width: 45px;
        height: 45px;
    }

    .send-btn {
        background: linear-gradient(135deg, var(--accent-color), var(--spaceship-blue));
        color: white;
    }

    .chat-item {
        padding: 12px;
        font-size: 1rem;
    }

    .file-item {
        padding: 10px;
        font-size: 0.9rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .new-chat-btn {
        padding: 12px;
        font-size: 1rem;
    }

    /* Ensure scrollbars are visible on desktop */
    .messages-container {
        overflow-y: auto;
    }

    /* Style scrollbars for webkit browsers */
    .messages-container::-webkit-scrollbar {
        width: 12px;
    }

    .messages-container::-webkit-scrollbar-track {
        background: var(--secondary-bg);
        border-radius: 6px;
    }

    .messages-container::-webkit-scrollbar-thumb {
        background: var(--accent-color);
        border-radius: 6px;
    }

    .messages-container::-webkit-scrollbar-thumb:hover {
        background: var(--spaceship-blue);
    }

    /* For Firefox - ensure scrollbars are visible on desktop */
    .messages-container {
        scrollbar-width: thin;
        scrollbar-color: var(--accent-color) var(--secondary-bg);
    }

    /* Additional specific rules for tablet view */
    .main-content.tablet-view.with-sidebars:not(.left-sidebar-collapsed):not(.right-sidebar-collapsed) {
        margin-left: 274px;
        margin-right: 274px;
    }

    .main-content.tablet-view.with-sidebars.left-sidebar-collapsed:not(.right-sidebar-collapsed) {
        margin-left: 12px;
        margin-right: 274px;
    }

    .main-content.tablet-view.with-sidebars.right-sidebar-collapsed:not(.left-sidebar-collapsed) {
        margin-left: 274px;
        margin-right: 12px;
    }

    .main-content.tablet-view.with-sidebars.both-sidebars-collapsed {
        margin-left: 12px;
        margin-right: 12px;
    }
}

/* Markdown formatting styles for AI messages */
.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4,
.message-content h5,
.message-content h6 {
    margin: 0.5em 0 0.3em;
    color: var(--accent-color);
    font-weight: 600;
}

.message-content h1 {
    font-size: 1.5em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.2em;
}

.message-content h2 {
    font-size: 1.4em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.2em;
}

.message-content h3 {
    font-size: 1.3em;
}

.message-content h4 {
    font-size: 1.2em;
}

.message-content h5 {
    font-size: 1.1em;
}

.message-content h6 {
    font-size: 1em;
    color: var(--text-secondary);
}

.message-content p {
    margin: 0.5em 0;
    line-height: 1.5;
}

.message-content ul,
.message-content ol {
    padding-left: 1.5em;
    margin: 0.5em 0;
}

.message-content li {
    margin: 0.3em 0;
}

.message-content blockquote {
    margin: 0.8em 0;
    padding: 0.5em 1em;
    border-left: 3px solid var(--accent-color);
    background: rgba(0, 212, 255, 0.05);
    color: var(--text-secondary);
}

.message-content code {
    font-family: 'Courier New', Consolas, monospace;
    background: rgba(0, 0, 0, 0.3);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--warning-color);
}

.message-content pre {
    background: rgba(0, 0, 0, 0.3);
    padding: 1em;
    border-radius: var(--border-radius-sm);
    overflow-x: auto;
    margin: 0.8em 0;
    border: 1px solid var(--border-color);
}

.message-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.message-content strong {
    font-weight: bold;
    color: var(--accent-color);
}

.message-content em {
    font-style: italic;
}

.message-content a {
    color: var(--accent-color);
    text-decoration: underline;
}

.message-content a:hover {
    color: var(--spaceship-blue);
}

/* Desktop Styles */
@media (min-width: 1025px) {
    body {
        height: 100vh;
    }

    .app-container {
        height: 100vh;
        overflow: visible;
    }

    /* Keep sidebar styles from tablet breakpoint */
    .sidebar {
        width: 250px;
        max-width: 250px;
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .main-content {
        margin-left: 274px;
        margin-right: 274px;
        min-width: 500px;
        height: calc(100vh);
        transition: margin 0.3s ease;
    }

    /* Adjust main content when sidebars are collapsed - these will be overridden by JavaScript but kept as fallback */
    .main-content.left-sidebar-collapsed {
        margin-left: 12px !important;
    }

    .main-content.right-sidebar-collapsed {
        margin-right: 12px !important;
    }

    .main-content.both-sidebars-collapsed {
        margin-left: 12px !important;
        margin-right: 12px !important;
    }

    /* Chat container adjustments */
    .chat-container {
        max-width: 1200px;
        padding: 10px;
        background: rgba(14, 14, 29, 0.6);
        backdrop-filter: blur(10px);
    }

    .messages-container {
        padding: 20px 0;
    }

    .message {
        max-width: 85%;
    }

    /* Ensure main content area properly shrinks with sidebars */
    .main-content.with-sidebars {
        transition: margin 0.3s ease; /* Smooth transition when sidebars open/close */
    }

    /* Desktop-specific main content margins - these are now handled by JavaScript */
    /* Keeping these as comments for reference only:
    .main-content.with-sidebars:not(.left-sidebar-collapsed):not(.right-sidebar-collapsed) {
        margin-left: 274px;
        margin-right: 274px;
    }

    .main-content.with-sidebars.left-sidebar-collapsed:not(.right-sidebar-collapsed) {
        margin-left: 12px;
        margin-right: 274px;
    }

    .main-content.with-sidebars.right-sidebar-collapsed:not(.left-sidebar-collapsed) {
        margin-left: 274px;
        margin-right: 12px;
    }

    .main-content.with-sidebars.both-sidebars-collapsed {
        margin-left: 12px;
        margin-right: 12px;
    }
    */
}