/* ===================================
   VSight Nova - Modern AI Chat Styles
   =================================== */

:root {
    /* Brand Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-500: #667eea;
    --primary-600: #5a67d8;
    --primary-700: #4c51bf;

    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

html,
body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    line-height: 1.5;
    color: var(--gray-900);
    background: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Background Effects
   =================================== */

.bg-gradient {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(118, 75, 162, 0.05) 0%, transparent 50%);
    z-index: 0;
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(-5%, -5%) rotate(5deg);
    }
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(var(--gray-200) 1px, transparent 1px),
        linear-gradient(90deg, var(--gray-200) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    z-index: 0;
}

/* ===================================
   Main Container
   =================================== */

.app-container {
    position: relative;
    height: 100vh;
    display: flex;
    background: var(--gray-50);
    z-index: 1;
}

/* ===================================
   Sidebar & Chat History (Right Side)
   =================================== */

.sidebar {
    width: 260px;
    height: 100vh;
    background: #171717;
    color: white;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 100;
    order: 2;
    /* Positioned after main-content */
}

/* Desktop: Sidebar always visible, can be collapsed */
@media (min-width: 769px) {
    .sidebar.collapsed {
        width: 0;
        overflow: hidden;
    }
}

/* Mobile: Sidebar hidden by default, overlay when open */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: 0;
        right: 0;
        /* Changed from left to right */
        transform: translateX(100%);
        /* Changed from -100% to 100% */
        z-index: 1000;
        width: 280px;
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: -4px 0 24px rgba(0, 0, 0, 0.3);
        /* Changed shadow direction */
    }
}

.sidebar-header {
    padding: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

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

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

.sidebar-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.sidebar-new-chat-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all 0.2s ease;
}

.sidebar-new-chat-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

.sidebar-new-chat-btn:active {
    background: rgba(255, 255, 255, 0.15);
}

.sidebar-new-chat-btn svg {
    flex-shrink: 0;
}

.history-list {
    flex: 1;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.history-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 32px 16px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.history-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

.history-empty svg {
    width: 40px;
    height: 40px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.history-empty p {
    font-size: 13px;
    margin: 0;
    line-height: 1.5;
}

.history-section {
    margin-bottom: 16px;
}

.history-section-title {
    font-size: 11px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 8px 12px 4px;
    margin-bottom: 4px;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    color: rgba(255, 255, 255, 0.8);
}

.history-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.history-item.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.history-item-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
}

.history-item:hover .history-item-icon,
.history-item.active .history-item-icon {
    color: white;
}

.history-item-content {
    flex: 1;
    min-width: 0;
}

.history-item-title {
    font-size: 14px;
    font-weight: 400;
    color: inherit;
    margin: 0 0 4px 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.4;
}

.history-item-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

.history-item-time {
    display: flex;
    align-items: center;
    gap: 4px;
}

.history-item-time svg {
    width: 10px;
    height: 10px;
}

.history-item-messages {
    display: flex;
    align-items: center;
    gap: 4px;
}

.history-item-messages svg {
    width: 10px;
    height: 10px;
}

.sidebar-overlay {
    display: none;
}

@media (max-width: 768px) {
    .sidebar-overlay {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }

    .sidebar-overlay.active {
        opacity: 1;
        pointer-events: all;
    }
}

/* Main Content Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    order: 1;
    /* Positioned before sidebar */
}

/* Hamburger Menu Button */
.hamburger-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
    color: var(--gray-700);
    order: 999;
    /* Position at the end of header-actions */
}

.hamburger-btn:hover {
    background: var(--gray-100);
}

.hamburger-btn:active {
    background: var(--gray-200);
}

.hamburger-btn svg {
    flex-shrink: 0;
}

/* ===================================
   Header
   =================================== */

.app-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #eeeeee;
    padding: 12px var(--spacing-xl);
    box-shadow: none;
    z-index: 10;
    min-height: 64px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo svg {
    filter: drop-shadow(0 2px 8px rgba(108, 92, 231, 0.25));
}

.brand-text h1 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
    line-height: 1.2;
}

.tagline {
    font-size: 0.6875rem;
    color: var(--gray-500);
    font-weight: 500;
    letter-spacing: 0.01em;
    margin-top: 2px;
    line-height: 1.2;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* New Conversation Button */
.new-conversation-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.new-conversation-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gray-50);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.new-conversation-btn:hover {
    border-color: var(--gray-400);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    background: var(--gray-50);
}

.new-conversation-btn:hover::before {
    opacity: 1;
}

.new-conversation-btn:active {
    transform: scale(0.98);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.new-conversation-btn svg {
    flex-shrink: 0;
    stroke-width: 2;
    width: 16px;
    height: 16px;
    color: var(--gray-600);
}

.new-conversation-btn .btn-text {
    font-weight: 600;
    letter-spacing: 0.01em;
}

/* Mobile optimization for new conversation button */
@media (max-width: 640px) {
    .new-conversation-btn .btn-text {
        display: none;
    }

    .new-conversation-btn {
        padding: 8px;
        width: 32px;
        height: 32px;
        justify-content: center;
    }

    .new-conversation-btn svg {
        width: 16px;
        height: 16px;
    }

    .user-info .user-name {
        display: none;
    }

    .user-info {
        padding: 4px;
        gap: 4px;
    }

    .user-chevron {
        display: none;
    }
}

.user-info {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    background: transparent;
    border: 1px solid var(--gray-200);
    padding: 4px 8px 4px 4px;
    border-radius: 20px;
    transition: all 0.2s ease;
}

.user-info:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-300);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 6px;
}

.user-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    color: white;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.user-details {
    display: none;
}

.user-name {
    font-size: 0.8125rem;
    color: var(--gray-700);
    font-weight: 500;
    white-space: nowrap;
    line-height: 1;
}

.user-account {
    display: none;
    /* Hidden in simplified view */
}

.user-chevron {
    width: 14px;
    height: 14px;
    color: var(--gray-400);
    transition: all var(--transition-fast);
    opacity: 0.7;
    flex-shrink: 0;
}

.user-info:hover .user-chevron {
    color: var(--gray-600);
    opacity: 1;
}

.user-info.open {
    background: var(--gray-100);
    border-color: var(--gray-300);
}

.user-info.open .user-chevron {
    transform: rotate(180deg);
    color: var(--gray-700);
    opacity: 1;
}

/* User Dropdown Menu */
.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: var(--spacing-xl);
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 220px;
    z-index: 100;
    padding: var(--spacing-xs);
    animation: slideDown 0.2s ease-out;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
    color: var(--gray-700);
    font-family: var(--font-family);
}

.dropdown-item:hover:not(:disabled) {
    background: var(--gray-100);
    color: var(--gray-900);
}

.dropdown-item:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    color: var(--gray-400);
}

.dropdown-item:disabled svg {
    color: var(--gray-400);
}

.dropdown-item.danger {
    color: var(--error);
}

.dropdown-item.danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.dropdown-item svg {
    flex-shrink: 0;
    stroke-width: 2;
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: var(--spacing-xs) 0;
}

/* Legacy logout button - now hidden */
.logout-btn {
    display: none;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    transition: all var(--transition-base);
}

.icon-btn:hover {
    background: var(--gray-200);
    color: var(--gray-900);
    transform: translateY(-1px);
}

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

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
}

.mobile-menu-dropdown {
    position: absolute;
    top: 100%;
    right: var(--spacing-lg);
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 260px;
    z-index: 100;
    animation: slideDown 0.2s ease-out;
}

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

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

.mobile-menu-content {
    padding: var(--spacing-sm);
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-xs);
}

.mobile-menu-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.25);
    flex-shrink: 0;
}

.mobile-menu-user-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.mobile-menu-user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-900);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mobile-menu-user-account {
    font-size: 0.75rem;
    color: var(--gray-500);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mobile-menu-divider {
    height: 1px;
    background: var(--gray-200);
    margin: var(--spacing-xs) 0;
}

.mobile-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.875rem;
    color: var(--gray-700);
}

.mobile-menu-item:hover:not(:disabled) {
    background: var(--gray-100);
    color: var(--gray-900);
}

.mobile-menu-item:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    color: var(--gray-400);
}

.mobile-menu-item:disabled svg {
    color: var(--gray-400);
}

.mobile-menu-item.danger {
    color: var(--error);
}

.mobile-menu-item.danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

.mobile-menu-item svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

/* ===================================
   Welcome Screen
   =================================== */

.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg) var(--spacing-md);
    padding-top: var(--spacing-md);
    flex: 1;
    overflow: hidden;
    opacity: 1;
    transition: opacity var(--transition-slow);
}

.welcome-screen.hidden {
    display: none;
}

.welcome-content {
    max-width: 740px;
    text-align: center;
    width: 100%;
}

.welcome-icon {
    display: none;
    /* Hidden on mobile by default */
}

@keyframes welcomeIconAppear {
    0% {
        opacity: 0;
        transform: scale(0.92);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.welcome-content h2 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 10px;
    line-height: 1.3;
}

.welcome-content>p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-bottom: var(--spacing-xs);
}

.welcome-content .hero-description {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-600);
    margin-bottom: 14px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

/* Connected Apps Card */
.connected-apps-card {
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.04) 0%, rgba(200, 181, 255, 0.04) 100%);
    border: 1px solid rgba(108, 92, 231, 0.12);
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 12px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.connected-apps-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
}

.connected-apps-header svg {
    color: #6C5CE7;
    flex-shrink: 0;
}

.connected-apps-title {
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.connected-apps-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.app-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all 0.15s ease;
}

.app-chip.connected {
    background: rgba(108, 92, 231, 0.12);
    color: #6C5CE7;
    border: 1px solid rgba(108, 92, 231, 0.2);
}

.app-chip.connected svg {
    color: #6C5CE7;
    stroke-width: 2.5;
}

.app-chip.available {
    background: rgba(108, 92, 231, 0.04);
    color: var(--gray-500);
    border: 1px solid rgba(108, 92, 231, 0.1);
}

.app-chip.available svg {
    color: var(--gray-400);
    stroke-width: 2;
}

.app-chip svg {
    flex-shrink: 0;
}

.suggestions {
    margin-top: 16px;
}

.suggestions h3 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-600);
    letter-spacing: 0.02em;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.suggestion-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.suggestion-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    padding: 8px 10px;
    cursor: pointer;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    transition: all 0.15s ease;
    text-align: left;
    min-height: 52px;
}

.suggestion-card:hover {
    border-color: #6C5CE7;
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.12);
    transform: translateY(-1px);
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.02) 0%, rgba(200, 181, 255, 0.02) 100%);
}

.suggestion-card:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(108, 92, 231, 0.1);
}

.suggestion-card svg {
    color: #6C5CE7;
    stroke-width: 1.5;
    flex-shrink: 0;
    width: 17px;
    height: 17px;
}

.suggestion-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.suggestion-title {
    font-size: 0.78125rem;
    font-weight: 500;
    color: var(--gray-900);
    line-height: 1.35;
}

.suggestion-card span {
    font-size: 0.78125rem;
    font-weight: 500;
    color: var(--gray-700);
    line-height: 1.3;
}

/* ===================================
   Messages Container
   =================================== */

.messages-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-xl);
    padding-bottom: calc(var(--spacing-xl) * 2);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    /* Ensure scrolling works on mobile */
    min-height: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.messages-container.hidden {
    display: none;
}

.message {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    animation: slideIn 0.3s ease-out;
    width: 100%;
    max-width: 740px;
}

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

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

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity: 0.7;
}

.message.user .message-avatar {
    background: var(--primary-gradient);
    color: white;
    opacity: 0.5;
}

.message.assistant .message-avatar {
    background: var(--gray-100);
    color: var(--primary-500);
}

.message-content {
    max-width: 70%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.message-bubble {
    padding: 12px 18px;
    border-radius: 14px;
    font-size: var(--font-size-md);
    line-height: 1.6;
    word-wrap: break-word;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message.user .message-bubble {
    background: var(--primary-gradient);
    color: white;
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.25);
}

.message.assistant .message-bubble {
    background: white;
    border: 1px solid var(--gray-200);
    color: var(--gray-900);
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.message-time {
    font-size: 0.6875rem;
    color: var(--gray-400);
    opacity: 0.8;
    padding: 0 var(--spacing-sm);
    font-weight: 500;
    letter-spacing: 0.01em;
}

/* Message Source Row (inside bubble) */
.message-source {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 10px;
    margin: -4px -4px 12px -4px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.04) 0%, rgba(118, 75, 162, 0.04) 100%);
    border-radius: 8px;
    font-size: 0.8125rem;
    color: var(--gray-600);
    line-height: 1.4;
    cursor: help;
    border: 1px solid rgba(102, 126, 234, 0.08);
}

.message-source svg {
    flex-shrink: 0;
    opacity: 0.8;
    color: var(--primary-500);
}

.message-source-text {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.message-source-workflow {
    font-weight: 600;
    color: var(--gray-700);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.message-source-separator {
    flex-shrink: 0;
}

.message-source-step {
    flex-shrink: 0;
    white-space: nowrap;
    font-weight: 600;
    color: var(--primary-600);
}

.citations {
    margin-top: var(--spacing-md);
}

/* Workflow Card - Redesigned */
.workflow-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-md);
    align-items: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.04) 0%, rgba(118, 75, 162, 0.04) 100%);
    border: 1.5px solid rgba(102, 126, 234, 0.18);
    border-radius: 12px;
    padding: 16px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(102, 126, 234, 0.08);
}

.workflow-card:hover {
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.12);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
}

.workflow-card:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(102, 126, 234, 0.1);
}

.workflow-card-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 0;
}

.workflow-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.workflow-card-header svg {
    color: var(--primary-500);
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

.workflow-badge {
    font-size: 0.6875rem;
    font-weight: 700;
    color: #5a67d8;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.workflow-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
    line-height: 1.4;
    /* Max 2 lines with ellipsis */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
    cursor: help;
}

.workflow-step-info {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
    margin-top: 4px;
    cursor: help;
}

.workflow-step-icon {
    flex-shrink: 0;
    color: var(--primary-500);
    opacity: 0.8;
}

.workflow-step-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.8125rem;
    font-weight: 700;
    color: #5a67d8;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    padding: 4px 10px;
    border-radius: 8px;
    flex-shrink: 0;
    letter-spacing: 0.02em;
    border: 1px solid rgba(102, 126, 234, 0.2);
    box-shadow: 0 1px 2px rgba(102, 126, 234, 0.1);
}

.workflow-step-name {
    color: var(--gray-700);
    font-weight: 400;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.workflow-card-action {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-shrink: 0;
    cursor: pointer;
}

.workflow-action-text {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-600);
    white-space: nowrap;
    padding: 6px 12px;
    border-radius: 8px;
    background: rgba(102, 126, 234, 0.08);
    transition: all 0.2s ease;
    cursor: pointer;
}

.workflow-card-action:hover .workflow-action-text {
    background: rgba(102, 126, 234, 0.15);
    color: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(102, 126, 234, 0.2);
}

.workflow-card-action:active .workflow-action-text {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(102, 126, 234, 0.15);
}

.workflow-action-text svg {
    transition: transform 0.2s ease;
    width: 16px;
    height: 16px;
}

.workflow-card-action:hover .workflow-action-text svg {
    transform: translateX(3px);
}

/* Legacy workflow styles - kept for backward compatibility */
.workflow-card-body {
    margin-bottom: var(--spacing-sm);
}

.workflow-title-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xs);
}

.workflow-step-badge {
    font-size: var(--font-size-xs);
    color: white;
    font-weight: 600;
    padding: 4px 10px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    white-space: nowrap;
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.2);
}

/* Legacy step style */
.workflow-step {
    font-size: var(--font-size-sm);
    color: var(--primary-600);
    font-weight: 500;
    margin: 0 0 var(--spacing-xs) 0;
    display: inline-block;
    padding: 2px 8px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-sm);
}

.workflow-description {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin: 0;
    line-height: 1.5;
}

.workflow-card-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.workflow-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--primary-600);
}

.workflow-action svg {
    transition: transform var(--transition-fast);
}

.workflow-card:hover .workflow-action svg {
    transform: translateX(4px);
}

/* Legacy citation styles - kept for backward compatibility */
.citations-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.citation-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: white;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.citation-item:hover {
    border-color: var(--primary-500);
    box-shadow: var(--shadow-sm);
}

.citation-item:last-child {
    margin-bottom: 0;
}

.citation-item svg {
    color: var(--primary-500);
    flex-shrink: 0;
}

.suggested-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

.action-btn {
    padding: 10px 18px;
    background: white;
    border: 1.5px solid var(--gray-300);
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.action-btn:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.04) 0%, rgba(118, 75, 162, 0.04) 100%);
    border-color: var(--primary-500);
    color: var(--primary-600);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.action-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(102, 126, 234, 0.1);
}

/* ===================================
   Loading Indicator
   =================================== */

.loading-indicator {
    display: none;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    margin: 0 var(--spacing-xl);
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
}

.loading-indicator.active {
    display: flex;
    animation: slideIn 0.3s ease-out;
}

.loading-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-500);
    animation: bounce 1.4s infinite ease-in-out both;
}

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

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

.dot:nth-child(3) {
    background: #5A4AD9;
}

@keyframes bounce {

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

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

.loading-indicator span {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* ===================================
   Input Container
   =================================== */

.input-container {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: white;
    border-top: 1px solid var(--gray-200);
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.05);
    display: flex;
    justify-content: center;
}

.input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
    width: 100%;
    max-width: 740px;
}

.input-wrapper:focus-within {
    border-color: #6C5CE7;
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.12);
    background: white;
}

#messageInput {
    flex: 1;
    border: none;
    background: transparent;
    font-family: var(--font-family);
    font-size: 0.9375rem;
    color: var(--gray-900);
    resize: none;
    outline: none;
    max-height: 120px;
    line-height: 1.5;
}

#messageInput::placeholder {
    color: var(--gray-400);
}

.send-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: linear-gradient(135deg, #6C5CE7 0%, #8B7DE8 100%);
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.15s ease;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(108, 92, 231, 0.25);
}

.send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
}

.send-btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.35);
}

.send-btn:not(:disabled):active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(108, 92, 231, 0.3);
}

.input-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 8px;
    padding: 0 4px;
}

.char-count {
    font-size: 0.6875rem;
    color: var(--gray-400);
    opacity: 0.5;
    font-variant-numeric: tabular-nums;
}

.powered-by {
    display: none;
}

/* ===================================
   Toast Notifications
   =================================== */

.toast-container {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 300px;
    animation: slideInRight 0.3s ease-out;
    border-left: 4px solid var(--info);
    cursor: pointer;
    transition: all var(--transition-base);
    user-select: none;
}

.toast:hover {
    transform: translateX(-4px);
    box-shadow: 0 20px 30px -5px rgba(0, 0, 0, 0.15);
}

.toast:active {
    transform: translateX(-2px);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }

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

.toast.error {
    border-left-color: var(--error);
}

.toast.success {
    border-left-color: var(--success);
}

.toast.warning {
    border-left-color: var(--warning);
}

.toast-icon {
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-900);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    .app-header {
        padding: 8px var(--spacing-md);
        position: relative;
        min-height: 56px;
    }

    .logo svg {
        width: 28px;
        height: 28px;
    }

    .brand {
        gap: 10px;
    }

    .brand-text h1 {
        font-size: 1rem;
    }

    .tagline {
        font-size: 0.625rem;
        margin-top: 1px;
    }

    /* Hide desktop user info on mobile */
    .user-info {
        display: none !important;
    }

    /* Hide user dropdown on mobile */
    .user-dropdown-menu {
        display: none !important;
    }

    /* Show mobile menu button */
    .mobile-menu-btn {
        display: flex !important;
    }

    .header-actions {
        gap: var(--spacing-sm);
    }

    .mobile-menu-dropdown {
        right: var(--spacing-md);
    }

    .welcome-screen {
        padding: 16px var(--spacing-md);
    }

    .welcome-content h2 {
        font-size: 1.25rem;
        margin-bottom: 10px;
        line-height: 1.3;
    }

    .welcome-content .hero-description {
        font-size: 0.8125rem;
        line-height: 1.45;
        margin-bottom: 12px;
    }

    .connected-apps-card {
        padding: 10px 12px;
        margin-bottom: 14px;
        border-radius: 10px;
    }

    .connected-apps-header {
        margin-bottom: 8px;
    }

    .connected-apps-title {
        font-size: 0.6875rem;
    }

    .connected-apps-chips {
        gap: 5px;
    }

    .app-chip {
        padding: 5px 8px;
        font-size: 0.6875rem;
        border-radius: 6px;
    }

    .app-chip svg {
        width: 11px;
        height: 11px;
    }

    .suggestions {
        margin-top: 14px;
    }

    .suggestions h3 {
        font-size: 0.6875rem;
        margin-bottom: 10px;
    }

    .messages-container {
        padding: var(--spacing-md);
    }

    .message-content {
        max-width: 85%;
    }

    /* Mobile: Workflow Card - Single Column Stack */
    .workflow-card {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 14px;
        border-radius: 10px;
    }

    .workflow-card-action {
        justify-content: flex-start;
        width: 100%;
        margin-top: 4px;
    }

    .workflow-action-text {
        font-size: 0.8125rem;
        padding: 8px 14px;
        width: 100%;
        justify-content: center;
    }

    .workflow-title {
        font-size: 0.875rem;
        line-height: 1.45;
    }

    .workflow-step-info {
        font-size: 0.8125rem;
        gap: 6px;
        margin-top: 6px;
    }

    .workflow-step-icon {
        width: 16px;
        height: 16px;
    }

    .workflow-step-badge {
        font-size: 0.75rem;
        padding: 3px 8px;
    }

    .workflow-step-name {
        font-size: 0.8125rem;
    }

    /* Mobile: Message Source - Smaller & More Compact */
    .message-source {
        font-size: 0.75rem;
        gap: 6px;
        padding: 6px 8px;
        margin: -2px -2px 10px -2px;
    }

    .message-source svg {
        width: 14px;
        height: 14px;
    }

    /* Mobile: Suggested Actions - 2x2 Grid */
    .suggested-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        margin-top: 10px;
    }

    .action-btn {
        padding: 10px 8px;
        font-size: 0.8125rem;
        text-align: center;
        min-height: 44px;
        white-space: normal;
        line-height: 1.3;
    }

    .suggestion-cards {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .suggestion-card {
        min-height: 50px;
        padding: 7px 10px;
        align-items: center;
    }

    .suggestion-card svg {
        width: 18px;
        height: 18px;
        margin-top: 0;
    }

    .suggestion-title {
        font-size: 0.75rem;
        line-height: 1.3;
    }

    .send-btn {
        box-shadow: 0 2px 10px rgba(102, 126, 234, 0.35);
    }

    .send-btn:not(:disabled):hover {
        box-shadow: 0 4px 14px rgba(102, 126, 234, 0.45);
    }

    .input-container {
        padding: var(--spacing-md);
        padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
    }

    .toast-container {
        top: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
    }

    .toast {
        min-width: auto;
    }
}

/* Desktop / Tablet Overrides (>768px) */
@media (min-width: 769px) {
    .welcome-icon {
        display: block;
        margin-bottom: 6px;
        animation: welcomeIconAppear 0.3s ease-out;
    }

    .welcome-icon svg {
        width: 32px;
        height: 32px;
    }
}

/* ===================================
   Scrollbar Styling
   =================================== */

.messages-container::-webkit-scrollbar,
.welcome-screen::-webkit-scrollbar {
    width: 6px;
}

.messages-container::-webkit-scrollbar-track,
.welcome-screen::-webkit-scrollbar-track {
    background: transparent;
}

.messages-container::-webkit-scrollbar-thumb,
.welcome-screen::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

.messages-container::-webkit-scrollbar-thumb:hover,
.welcome-screen::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ===================================
   Login Screen
   =================================== */

.login-screen {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
}

.login-container {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-xl);
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header .logo {
    display: inline-flex;
    margin-bottom: var(--spacing-md);
}

.login-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 var(--spacing-xs) 0;
}

.login-header p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: var(--font-size-md);
    font-family: var(--font-family);
    transition: all 0.2s;
    background: white;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input[type="text"]::placeholder,
.form-group input[type="password"]::placeholder {
    color: var(--gray-400);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    align-items: end;
}

.checkbox-group label {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: 400;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-500);
}

.login-btn {
    padding: 0.875rem 1.5rem;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: var(--font-size-md);
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px -4px rgba(102, 126, 234, 0.4);
}

.login-btn:active:not(:disabled) {
    transform: translateY(0);
}

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

.login-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-spinner .spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.login-error {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    color: var(--error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-md);
}

.login-error svg {
    flex-shrink: 0;
}

/* Last Login Info */
.last-login-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: var(--spacing-md);
    padding: 8px 12px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    color: var(--gray-600);
    border: 1px solid var(--gray-200);
}

.last-login-info svg {
    flex-shrink: 0;
    opacity: 0.6;
}

.login-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

.login-footer p {
    color: var(--gray-500);
    font-size: var(--font-size-xs);
    margin: 0;
}

/* User Info in Header */
.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    margin-right: var(--spacing-md);
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-800);
}

.user-role {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive */
@media (max-width: 640px) {
    .login-container {
        padding: var(--spacing-lg);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .user-info {
        display: none;
    }
}

/* Environment Badge */
.env-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-left: var(--spacing-sm);
}

.env-dev {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.env-prod {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Hidden utility */
.hidden {
    display: none !important;
}

/* ===================================
   Login Screen Styles
   =================================== */

.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
}

.login-container {
    background: white;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-xl);
    max-width: 420px;
    width: 100%;
    animation: slideUp 0.4s ease-out;
}

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

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

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-header .logo {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.login-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input[type="text"],
.form-group input[type="password"] {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    transition: all var(--transition-base);
    background: white;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-lg);
    align-items: center;
}

.checkbox-group {
    margin: 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-500);
}

.checkbox-label span {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.env-toggle {
    margin: 0;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.env-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.toggle-label input[type="checkbox"] {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--gray-300);
    border-radius: 12px;
    transition: background var(--transition-base);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.toggle-label input[type="checkbox"]:checked~.toggle-slider {
    background: var(--primary-500);
}

.toggle-label input[type="checkbox"]:checked~.toggle-slider::before {
    transform: translateX(20px);
}

.login-btn {
    padding: 0.875rem 1.5rem;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.login-btn:active:not(:disabled) {
    transform: translateY(0);
}

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

.login-btn .spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.login-footer {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.login-footer p {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
}

/* User Info Badge */
.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    margin-right: var(--spacing-md);
}

.user-badge {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.logout-btn {
    background: none;
    border: none;
    padding: var(--spacing-xs);
    cursor: pointer;
    color: var(--gray-500);
    transition: color var(--transition-base);
    display: flex;
    align-items: center;
}

.logout-btn:hover {
    color: var(--error);
}

/* ===================================
   🔒 Safety UI Components
   Enhanced styling for safety-critical messages
   =================================== */

/* Safety Disclaimer */
.safety-disclaimer {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #fef3c715 0%, #fcd34d15 100%);
    border: 1px solid #fbbf2480;
    border-left: 4px solid var(--warning);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    animation: fadeIn 0.3s ease-in;
}

.safety-disclaimer-icon {
    flex-shrink: 0;
    color: var(--warning);
    display: flex;
    align-items: flex-start;
    padding-top: 2px;
}

.safety-disclaimer-icon svg {
    filter: drop-shadow(0 1px 2px rgba(245, 158, 11, 0.2));
}

.safety-disclaimer-text {
    flex: 1;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--gray-700);
}

/* Hard Refuse Banner (Safety + Low Grounding) */
.hard-refuse-banner {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #fee2e215 0%, #fecaca15 100%);
    border: 1px solid #f8717180;
    border-left: 4px solid var(--error);
    border-radius: var(--radius-lg);
    margin: var(--spacing-md) 0;
    animation: shakeAndFadeIn 0.5s ease-out;
}

.hard-refuse-icon {
    flex-shrink: 0;
    color: var(--error);
    display: flex;
    align-items: flex-start;
}

.hard-refuse-icon svg {
    filter: drop-shadow(0 2px 4px rgba(239, 68, 68, 0.25));
}

.hard-refuse-text {
    flex: 1;
}

.hard-refuse-text strong {
    display: block;
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--error);
    margin-bottom: var(--spacing-xs);
}

.hard-refuse-text p {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--gray-700);
    margin: 0;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

@keyframes shakeAndFadeIn {
    0% {
        opacity: 0;
        transform: translateX(-10px);
    }

    25% {
        transform: translateX(5px);
    }

    50% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(3px);
    }

    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Enhanced Message Bubble for Safety Context */
.message.assistant .message-bubble:has(.safety-disclaimer),
.message.assistant .message-bubble:has(.hard-refuse-banner) {
    background: white;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-md);
}

/* Mobile Responsive Adjustments */
@media (max-width: 640px) {

    .safety-disclaimer,
    .hard-refuse-banner {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .safety-disclaimer-icon,
    .hard-refuse-icon {
        padding-top: 0;
    }

    .history-item-title {
        font-size: 13px;
    }

    .history-item-meta {
        font-size: 11px;
    }

    .new-conversation-btn {
        display: none;
    }
}

/* ===================================
   Chat History Delete Button
   =================================== */

.history-item {
    position: relative;
}

.history-item .history-item-delete {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.1);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    opacity: 0 !important;
    transition: all 0.2s ease;
    color: #ef4444;
    z-index: 10;
}

.history-item:hover .history-item-delete {
    opacity: 1 !important;
}

.history-item .history-item-delete:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.history-item .history-item-delete:active {
    transform: translateY(-50%) scale(0.95);
}

.history-item-delete svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
    pointer-events: none;
}

/* Make sure content doesnt overlap with delete button */
.history-item .history-item-content {
    padding-right: 36px;
}

/* ===================================
   PWA Install Prompt Styles
   =================================== */

.install-prompt {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 10000;
    max-width: 360px;
    width: calc(100vw - 2rem);
    animation: slideInRight 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideInRight {
    from {
        transform: translateX(120%) scale(0.8);
        opacity: 0;
    }

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

.install-prompt-content {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

/* Animated background gradient */
.install-prompt-content::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 3s linear infinite;
    pointer-events: none;
}

@keyframes shimmer {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(50%, 50%);
    }
}

.install-prompt-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.install-prompt-icon {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.install-prompt-icon svg {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.install-prompt-text {
    flex: 1;
    position: relative;
    z-index: 1;
}

.install-prompt-text strong {
    display: block;
    color: white;
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 4px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.install-prompt-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    margin: 0;
    line-height: 1.4;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.install-prompt-actions {
    display: flex;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.install-btn-dismiss,
.install-btn-install {
    flex: 1;
    padding: 12px 20px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    white-space: nowrap;
    text-align: center;
}

.install-btn-dismiss {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.install-btn-dismiss:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.install-btn-install {
    background: white;
    color: #667eea;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.install-btn-install::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.install-btn-install:hover::before {
    width: 300px;
    height: 300px;
}

.install-btn-install:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

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

/* Close button */
.install-prompt-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 24px;
    height: 24px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    transition: all 0.2s ease;
}

.install-prompt-close:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: rotate(90deg);
}

.install-prompt-close svg {
    width: 12px;
    height: 12px;
    stroke: white;
    stroke-width: 2;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .install-prompt {
        top: auto;
        bottom: var(--spacing-lg);
        right: var(--spacing-md);
        left: var(--spacing-md);
        max-width: none;
    }

    @keyframes slideInRight {
        from {
            transform: translateY(120%) scale(0.9);
            opacity: 0;
        }

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

/* ===================================
   Offline Indicator Styles
   =================================== */

.offline-indicator {
    position: fixed;
    top: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    background: rgba(239, 68, 68, 0.95);
    backdrop-filter: blur(10px);
    color: white;
    padding: 12px 20px;
    border-radius: 12px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        transform: translateX(-50%) translateY(-100px);
        opacity: 0;
    }

    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

.offline-indicator svg {
    flex-shrink: 0;
}

/* ===================================
   PWA Standalone Mode Adjustments
   =================================== */

@media (display-mode: standalone) {

    /* Add safe area insets for iOS */
    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);
    }

    /* Adjust header for notch */
    .chat-header {
        padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top));
    }

    /* Hide install prompt in standalone mode */
    .install-prompt {
        display: none !important;
    }
}

/* iOS PWA specific adjustments */
@supports (-webkit-touch-callout: none) {
    @media (display-mode: standalone) {
        .chat-container {
            height: 100vh;
            height: -webkit-fill-available;
        }
    }
}

/* ===================================
   PWA Loading Skeleton (for cached content)
   =================================== */

.pwa-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #0f172a;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.pwa-loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.pwa-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(102, 126, 234, 0.2);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}