:root {
    --primary-color: #003366;
    /* Navy Blue */
    --secondary-color: #f0f2f5;
    /* Light Grey */
    --accent-color: #d32f2f;
    /* Red for highlights */
    --text-color: #333;
    --bot-bg: #e3f2fd;
    --user-bg: #003366;
    --user-text: #fff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--secondary-color);
    color: var(--text-color);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    max-width: 480px;
    height: 100vh;
    background: #fff;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

@media (min-width: 481px) {
    .container {
        height: 90vh;
        border-radius: 12px;
        overflow: hidden;
    }
}

.header {
    background-color: var(--primary-color);
    color: #fff;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 4px solid var(--accent-color);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2rem;
}

.title-group h1 {
    font-size: 1.2rem;
    font-weight: 600;
}

.title-group p {
    font-size: 0.8rem;
    opacity: 0.9;
}

.language-selector {
    display: flex;
    align-items: center;
}

.language-selector select {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    padding: 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
    outline: none;
    transition: all 0.2s ease;
}

.language-selector select:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.language-selector select option {
    background-color: var(--primary-color);
    color: white;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: #fff;
}

.chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 85%;
    padding: 0.8rem 1rem;
    border-radius: 12px;
    line-height: 1.5;
    font-size: 0.95rem;
    animation: fadeIn 0.3s ease;
}

.bot-message {
    background-color: var(--bot-bg);
    align-self: flex-start;
    border-bottom-left-radius: 2px;
}

.user-message {
    background-color: var(--user-bg);
    color: var(--user-text);
    align-self: flex-end;
    border-bottom-right-radius: 2px;
}

.input-area {
    padding: 1rem;
    background-color: #fff;
    border-top: 1px solid #eee;
}

#chat-form {
    display: flex;
    gap: 0.5rem;
    position: relative;
}

.input-wrapper {
    flex: 1;
    position: relative;
}

#user-input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 24px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.suggestions-box {
    position: absolute;
    bottom: 100%;
    left: 0;
    width: 100%;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.05);
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    margin-bottom: 8px;
}

.suggestion-item {
    padding: 10px 15px;
    cursor: pointer;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.95rem;
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background-color: #f5f7fa;
    color: var(--primary-color);
}

#user-input:focus {
    border-color: var(--primary-color);
}

#send-btn {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

#send-btn:hover {
    background-color: #0056b3;
}

.message-content {
    margin-bottom: 4px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

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

/* Cards View Styles */
.cards-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #fff;
    position: relative;
}

.service-list-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: #fff;
    position: relative;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid #eee;
    background-color: #f8f9fa;
}

.view-header h2 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.toggle-btn, .back-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.2s;
}

.toggle-btn:hover, .back-btn:hover {
    background-color: #0056b3;
}

.cards-container {
    flex: 1;
    padding: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, 150px);
    justify-content: center;
    max-width: 100%;
    gap: 1rem;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #f1f1f1;
}

/* Responsive grid with fixed sizes */
@media (min-width: 600px) {
    .cards-container {
        grid-template-columns: repeat(auto-fit, 180px);
        gap: 1.2rem;
    }
}

@media (min-width: 900px) {
    .cards-container {
        grid-template-columns: repeat(auto-fit, 120px);
        gap: 1.5rem;
    }
}

/* Custom scrollbar for cards container */
.cards-container::-webkit-scrollbar {
    width: 8px;
}

.cards-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.cards-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
    opacity: 0.7;
}

.cards-container::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
    opacity: 1;
}

.department-card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 12px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    aspect-ratio: 1 / 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.department-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem auto;
    display: block;
    object-fit: contain;
}

.card-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
}

.services-container {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    max-height: calc(100vh - 200px); /* Ensure container has a max height */
    scrollbar-width: thin; /* Firefox */
    scrollbar-color: var(--primary-color) #f1f1f1; /* Firefox */
}

/* Custom scrollbar for Webkit browsers */
.services-container::-webkit-scrollbar {
    width: 8px;
}

.services-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.services-container::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
    opacity: 0.7;
}

.services-container::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
    opacity: 1;
}

/* Scroll indicator gradient */
.service-list-view::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.9), transparent);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-list-view.has-scroll::after {
    opacity: 1;
}

/* Scroll indicator for cards view */
.cards-view::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.9), transparent);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cards-view.has-scroll::after {
    opacity: 1;
}

/* Scroll indicator for cards view */
.cards-view::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.9), transparent);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cards-view.has-scroll::after {
    opacity: 1;
}

.service-item {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.service-item:hover {
    background-color: #f0f8ff;
    border-color: var(--primary-color);
    transform: translateX(4px);
}

.service-item h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--primary-color);
}

.chat-header {
    display: flex;
    justify-content: flex-end;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid #eee;
    background-color: #f8f9fa;
}

/* Responsive adjustments for non-widget mode */
@media (max-width: 599px) {
    body:not(.widget-mode) .cards-container {
        grid-template-columns: repeat(auto-fit, 140px);
        gap: 0.75rem;
        max-height: calc(100vh - 250px);
    }
}

@media (max-width: 350px) {
    body:not(.widget-mode) .cards-container {
        grid-template-columns: repeat(auto-fit, 120px);
        max-height: calc(100vh - 250px);
        gap: 0.5rem;
    }
    
    body:not(.widget-mode) .services-container {
        max-height: calc(100vh - 250px); /* Adjust for smaller screens */
    }
    
    /* Keep original layouts for non-widget mode */
}

/* Additional responsive adjustments for very small screens - non-widget mode */
@media (max-width: 480px) {
    body:not(.widget-mode) .cards-container {
        max-height: calc(100vh - 280px);
        padding: 0.5rem;
    }
    
    body:not(.widget-mode) .services-container {
        max-height: calc(100vh - 280px); /* Further adjustment for mobile */
        padding: 0.5rem; /* Reduce padding on mobile */
    }
    
    body:not(.widget-mode) .service-item {
        padding: 0.75rem; /* Slightly smaller padding on mobile */
        margin-bottom: 0.4rem;
    }
    
    body:not(.widget-mode) .department-card {
        padding: 1rem; /* Smaller padding for cards on mobile */
    }
}

/* Markdown styling within messages */
.message-content strong {
    font-weight: 600;
}

.message-content ul {
    margin-left: 1.2rem;
    margin-top: 0.5rem;
}

.message-content li {
    margin-bottom: 0.25rem;
}

/* Floating Chat Button */
.chat-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 51, 102, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
}

.chat-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 51, 102, 0.4);
    background: #0056b3;
}

.chat-fab:active {
    transform: scale(0.95);
}

/* App Modal Overlay */
.app-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 20px;
}

.app-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* App Modal */
.app-modal {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 480px;
    height: 90vh;
    max-height: 700px;
    display: flex;
    flex-direction: column;
    transform: scale(0.7) translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.app-modal-overlay.active .app-modal {
    transform: scale(1) translateY(0);
}

/* App Modal Header */
.app-modal-header {
    background: var(--primary-color);
    color: white;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 4px solid var(--accent-color);
    flex-shrink: 0;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.close-app-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.close-app-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* App Modal Content */
.app-modal-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: white;
}

/* Mobile responsive adjustments for modal */
@media (max-width: 480px) {
    .app-modal-overlay {
        padding: 12px;
    }
    
    .app-modal {
        height: calc(100vh - 24px);
        max-height: none;
        border-radius: 12px;
        max-width: none;
    }
    
    .chat-fab {
        bottom: 20px;
        right: 20px;
        width: 52px;
        height: 52px;
    }
    
    .app-modal-header {
        padding: 12px 16px;
    }
}

/* Hide original container when modal is used */
.modal-mode .container {
    display: none;
}

/* Widget mode styles - when embedded in external sites */
.widget-mode {
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden;
}

.widget-mode .container {
    max-width: none;
    height: 100vh;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    border: none;
    display: flex;
    flex-direction: column;
}

.widget-mode .header {
    border-radius: 0;
    position: relative;
    flex-shrink: 0;
}

/* Close button for widget mode */
.widget-close-btn {
    display: none;
}

.widget-mode .widget-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    touch-action: manipulation;
    margin-left: 12px;
}

.widget-mode .widget-close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.widget-mode .widget-close-btn:active {
    transform: scale(0.95);
}

/* Ensure language selector has proper z-index when present */
.widget-mode .header.has-language-selector #language-select {
    position: relative;
    z-index: 20;
}

/* Optimize main containers for widget - use flex-grow instead of fixed heights */
.widget-mode .chat-container,
.widget-mode .cards-view,
.widget-mode .service-list-view {
    flex: 1;
    height: auto;
    min-height: 0; /* Important for flex children */
    border-radius: 0;
    box-shadow: none;
}

.widget-mode .chat-history {
    flex: 1;
    max-height: none;
    min-height: 0;
}

/* Widget-specific container adjustments */
.widget-mode .cards-container {
    flex: 1;
    max-height: none;
    min-height: 0;
    overflow-y: auto;
}

.widget-mode .services-container {
    flex: 1;
    max-height: none;
    min-height: 0;
    overflow-y: auto;
}

/* Mobile optimization for widget */
@media (max-width: 480px) {
    .widget-mode .container {
        padding: 0;
    }
    
    .widget-mode .header {
        padding: 1rem 12px;
    }
    
    .widget-mode .logo-area {
        flex: 1;
    }
    
    .widget-mode .header-controls {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .widget-mode .title-group h1 {
        font-size: 1rem;
    }
    
    .widget-mode .title-group p {
        font-size: 0.75rem;
    }
    

    
    .widget-mode .language-selector select {
        padding: 0.4rem;
        font-size: 0.8rem;
    }
    
    /* Improve mobile touch targets */
    .widget-mode .department-card {
        padding: 1rem 0.5rem;
        min-height: 120px;
    }
    
    .widget-mode .card-title {
        font-size: 0.8rem;
        line-height: 1.2;
    }
    
    .widget-mode .card-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 0.5rem;
    }
    
    .widget-mode .service-item {
        padding: 1rem 0.75rem;
        margin-bottom: 0.75rem;
        border-radius: 6px;
    }
    
    .widget-mode .service-item h3 {
        font-size: 0.9rem;
        line-height: 1.3;
    }
    
    .widget-mode .view-header {
        padding: 0.75rem;
    }
    
    .widget-mode .view-header h2 {
        font-size: 1rem;
    }
    
    .widget-mode .toggle-btn,
    .widget-mode .back-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
        min-height: 36px;
    }
    
    .widget-mode .input-area {
        padding: 0.75rem;
    }
    
    .widget-mode #user-input {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .widget-mode #send-btn {
        width: 44px;
        height: 44px;
    }
    
    .widget-mode .message {
        max-width: 90%;
        padding: 0.75rem;
        font-size: 0.9rem;
    }
}

/* Extra small screens (very small phones) */
@media (max-width: 350px) {
    .widget-mode .header {
        padding: 0.75rem 8px;
    }
    
    .widget-mode .title-group h1 {
        font-size: 0.9rem;
    }
    
    .widget-mode .title-group p {
        font-size: 0.7rem;
    }
    
    .widget-mode .view-header {
        padding: 0.5rem;
    }
    
    .widget-mode .cards-container {
        grid-template-columns: repeat(auto-fit, 100px);
        gap: 0.5rem;
        padding: 0.5rem;
    }
    
    .widget-mode .department-card {
        padding: 0.75rem 0.25rem;
        min-height: 100px;
    }
    
    .widget-mode .card-icon {
        width: 36px;
        height: 36px;
    }
    
    .widget-mode .card-title {
        font-size: 0.7rem;
    }
    
    .widget-mode .service-item {
        padding: 0.75rem 0.5rem;
    }
    
    .widget-mode .service-item h3 {
        font-size: 0.8rem;
    }
}