/**
 * AI Chatbot CSS Styles
 * Complete styling for the AI-powered chatbot system
 */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* CSS Variables for theming */
:root {
    /* Light Theme Colors - Red-Orange Theme */
    --ai-primary: #ff6b35;
    --ai-secondary: #f7931e;
    --ai-success: #28a745;
    --ai-warning: #ffc107;
    --ai-danger: #dc3545;
    --ai-light: #fff5f2;
    --ai-dark: #2c1810;
    --ai-white: #ffffff;
    --ai-gray-100: #fff5f2;
    --ai-gray-200: #ffe8e0;
    --ai-gray-300: #ffd4c2;
    --ai-gray-400: #ffb894;
    --ai-gray-500: #ff9a66;
    --ai-gray-600: #ff7a38;
    --ai-gray-700: #e65a1a;
    --ai-gray-800: #cc4a0f;
    --ai-gray-900: #b33a05;
    
    /* Chatbot specific colors - Red-Orange Theme */
    --ai-bg-primary: var(--ai-white);
    --ai-bg-secondary: var(--ai-light);
    --ai-text-primary: var(--ai-dark);
    --ai-text-secondary: var(--ai-gray-700);
    --ai-border-color: var(--ai-gray-300);
    --ai-shadow: 0 4px 20px rgba(255, 107, 53, 0.15);
    --ai-shadow-hover: 0 8px 30px rgba(255, 107, 53, 0.25);
    
    /* Spacing */
    --ai-spacing-xs: 0.25rem;
    --ai-spacing-sm: 0.5rem;
    --ai-spacing-md: 1rem;
    --ai-spacing-lg: 1.5rem;
    --ai-spacing-xl: 2rem;
    
    /* Border radius */
    --ai-radius-sm: 0.25rem;
    --ai-radius-md: 0.5rem;
    --ai-radius-lg: 1rem;
    --ai-radius-xl: 1.5rem;
    
    /* Transitions */
    --ai-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --ai-transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme - Red-Orange Theme */
@media (prefers-color-scheme: dark) {
    :root {
        --ai-bg-primary: #1a0f0a;
        --ai-bg-secondary: #2d1a10;
        --ai-text-primary: #ffffff;
        --ai-text-secondary: #ffd4c2;
        --ai-border-color: #ff7a38;
        --ai-shadow: 0 4px 20px rgba(255, 107, 53, 0.2);
        --ai-shadow-hover: 0 8px 30px rgba(255, 107, 53, 0.3);
    }
}

/* Base Styles */
.ai-chatbot-toggle,
.ai-chatbot-container {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    box-sizing: border-box;
}

/* Toggle Button */
.ai-chatbot-toggle {
    position: fixed;
    bottom: 100px; /* Increased to avoid overlap with home button */
    right: var(--ai-spacing-lg);
    z-index: 9998;
    background: linear-gradient(135deg, var(--ai-primary), var(--ai-secondary));
    color: var(--ai-white);
    padding: var(--ai-spacing-md) var(--ai-spacing-lg);
    border-radius: var(--ai-radius-xl);
    cursor: pointer;
    box-shadow: var(--ai-shadow);
    transition: var(--ai-transition);
    display: flex;
    align-items: center;
    gap: var(--ai-spacing-sm);
    font-weight: 500;
    font-size: 0.9rem;
    min-width: 200px;
    justify-content: center;
}

.ai-chatbot-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--ai-shadow-hover);
}

.ai-chatbot-toggle i {
    font-size: 1.2rem;
}

/* Main Container */
.ai-chatbot-container {
    position: fixed;
    bottom: var(--ai-spacing-lg);
    right: var(--ai-spacing-lg);
    width: 380px;
    height: 600px;
    background: var(--ai-bg-primary);
    border-radius: var(--ai-radius-lg);
    box-shadow: var(--ai-shadow);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateX(100%);
    transition: var(--ai-transition);
    border: 1px solid var(--ai-border-color);
}

.ai-chatbot-container.ai-chatbot-open {
    transform: translateX(0);
}

.ai-chatbot-container.ai-chatbot-fullscreen {
    width: 100vw !important;
    height: 100vh !important;
    bottom: 0 !important;
    right: 0 !important;
    left: 0 !important;
    top: 0 !important;
    border-radius: 0 !important;
    transform: none !important;
    z-index: 10000 !important;
    position: fixed !important;
}

/* Fullscreen API styles */
.ai-chatbot-container:fullscreen {
    width: 100vw !important;
    height: 100vh !important;
    background: var(--ai-bg-primary) !important;
    border-radius: 0 !important;
    transform: none !important;
}

.ai-chatbot-container:-webkit-full-screen {
    width: 100vw !important;
    height: 100vh !important;
    background: var(--ai-bg-primary) !important;
    border-radius: 0 !important;
    transform: none !important;
}

.ai-chatbot-container:-moz-full-screen {
    width: 100vw !important;
    height: 100vh !important;
    background: var(--ai-bg-primary) !important;
    border-radius: 0 !important;
    transform: none !important;
}

.ai-chatbot-container:-ms-fullscreen {
    width: 100vw !important;
    height: 100vh !important;
    background: var(--ai-bg-primary) !important;
    border-radius: 0 !important;
    transform: none !important;
}

/* Header */
.ai-chatbot-header {
    background: linear-gradient(135deg, var(--ai-primary), var(--ai-secondary));
    color: var(--ai-white);
    padding: var(--ai-spacing-md) var(--ai-spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: var(--ai-radius-lg) var(--ai-radius-lg) 0 0;
    position: relative;
}

.ai-chatbot-container.ai-chatbot-fullscreen .ai-chatbot-header {
    border-radius: 0;
}

.ai-chatbot-title {
    display: flex;
    align-items: center;
    gap: var(--ai-spacing-sm);
    font-weight: 600;
    font-size: 1.1rem;
}

.ai-chatbot-title i {
    font-size: 1.3rem;
}

.ai-chatbot-actions {
    display: flex;
    gap: var(--ai-spacing-sm);
}

.ai-chatbot-fullscreen,
.ai-chatbot-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--ai-white);
    width: 36px;
    height: 36px;
    border-radius: var(--ai-radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--ai-transition-fast);
    backdrop-filter: blur(10px);
}

.ai-chatbot-fullscreen:hover,
.ai-chatbot-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* Messages Area */
.ai-chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--ai-spacing-lg);
    background: var(--ai-bg-secondary);
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
.ai-chatbot-messages::-webkit-scrollbar {
    width: 6px;
}

.ai-chatbot-messages::-webkit-scrollbar-track {
    background: var(--ai-gray-200);
    border-radius: var(--ai-radius-sm);
}

.ai-chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--ai-gray-400);
    border-radius: var(--ai-radius-sm);
}

.ai-chatbot-messages::-webkit-scrollbar-thumb:hover {
    background: var(--ai-gray-500);
}

/* Welcome Message */
.ai-chatbot-welcome {
    background: var(--ai-bg-primary);
    padding: var(--ai-spacing-lg);
    border-radius: var(--ai-radius-lg);
    margin-bottom: var(--ai-spacing-lg);
    border: 1px solid var(--ai-border-color);
}

.ai-chatbot-welcome h3 {
    color: var(--ai-primary);
    margin: 0 0 var(--ai-spacing-md) 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.ai-chatbot-welcome p {
    color: var(--ai-text-secondary);
    margin: var(--ai-spacing-sm) 0;
    line-height: 1.5;
}

.ai-chatbot-welcome ul {
    margin: var(--ai-spacing-md) 0;
    padding-left: var(--ai-spacing-lg);
}

.ai-chatbot-welcome li {
    color: var(--ai-text-secondary);
    margin: var(--ai-spacing-xs) 0;
    line-height: 1.4;
}

/* Messages */
.ai-chatbot-message {
    display: flex;
    gap: var(--ai-spacing-md);
    margin-bottom: var(--ai-spacing-lg);
    animation: ai-chatbot-message-fade-in 0.3s ease-out;
}

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

.ai-chatbot-message-bot {
    flex-direction: row;
}

.ai-chatbot-message-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.ai-chatbot-message-user .ai-chatbot-message-icon {
    background: var(--ai-success);
    color: var(--ai-white);
}

.ai-chatbot-message-bot .ai-chatbot-message-icon {
    background: linear-gradient(135deg, var(--ai-primary), var(--ai-secondary));
    color: var(--ai-white);
}

.ai-chatbot-message-content {
    background: var(--ai-bg-primary);
    padding: var(--ai-spacing-md) var(--ai-spacing-lg);
    border-radius: var(--ai-radius-lg);
    max-width: 80%;
    word-wrap: break-word;
    line-height: 1.5;
    color: var(--ai-text-primary);
    border: 1px solid var(--ai-border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.ai-chatbot-message-user .ai-chatbot-message-content {
    background: var(--ai-primary);
    color: var(--ai-white);
    border-color: var(--ai-primary);
}

.ai-chatbot-message-content a {
    color: var(--ai-primary);
    text-decoration: none;
}

.ai-chatbot-message-user .ai-chatbot-message-content a {
    color: var(--ai-white);
    text-decoration: underline;
}

/* Text formatting */
.ai-chatbot-message-content strong {
    font-weight: 600;
    color: inherit;
}

.ai-chatbot-message-content em {
    font-style: italic;
    color: inherit;
}

.ai-chatbot-message-content br {
    margin-bottom: 0.5rem;
}

/* Input Area */
.ai-chatbot-input-area {
    padding: var(--ai-spacing-lg);
    background: var(--ai-bg-primary);
    border-top: 1px solid var(--ai-border-color);
}

.ai-chatbot-input-group {
    display: flex;
    gap: var(--ai-spacing-sm);
    margin-bottom: var(--ai-spacing-md);
}

.ai-chatbot-input {
    flex: 1;
    padding: var(--ai-spacing-md) var(--ai-spacing-lg);
    border: 2px solid var(--ai-border-color);
    border-radius: var(--ai-radius-lg);
    font-family: inherit;
    font-size: 0.95rem;
    background: var(--ai-bg-primary);
    color: var(--ai-text-primary);
    transition: var(--ai-transition-fast);
    outline: none;
}

.ai-chatbot-input:focus {
    border-color: var(--ai-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.ai-chatbot-input:disabled {
    background: var(--ai-gray-100);
    color: var(--ai-gray-500);
    cursor: not-allowed;
}

.ai-chatbot-send {
    background: linear-gradient(135deg, var(--ai-primary), var(--ai-secondary));
    color: var(--ai-white);
    border: none;
    padding: var(--ai-spacing-md) var(--ai-spacing-lg);
    border-radius: var(--ai-radius-lg);
    cursor: pointer;
    transition: var(--ai-transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
}

.ai-chatbot-send:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.ai-chatbot-send:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Quick Actions */
.ai-chatbot-quick-actions {
    display: flex;
    gap: var(--ai-spacing-sm);
    flex-wrap: wrap;
}

.ai-chatbot-quick-btn {
    background: var(--ai-bg-secondary);
    color: var(--ai-text-primary);
    border: 1px solid var(--ai-border-color);
    padding: var(--ai-spacing-sm) var(--ai-spacing-md);
    border-radius: var(--ai-radius-md);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--ai-transition-fast);
    white-space: nowrap;
}

.ai-chatbot-quick-btn:hover {
    background: var(--ai-primary);
    color: var(--ai-white);
    border-color: var(--ai-primary);
    transform: translateY(-1px);
}

/* Status */
.ai-chatbot-status {
    padding: var(--ai-spacing-sm) var(--ai-spacing-lg);
    background: var(--ai-bg-secondary);
    border-top: 1px solid var(--ai-border-color);
    text-align: center;
}

.ai-chatbot-status-text {
    font-size: 0.8rem;
    color: var(--ai-text-secondary);
    font-weight: 500;
}

.ai-chatbot-status-ready {
    color: var(--ai-success) !important;
}

.ai-chatbot-status-fallback {
    color: var(--ai-warning) !important;
}

/* Animations */
@keyframes ai-chatbot-message-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes ai-chatbot-spinner {
    to {
        transform: rotate(360deg);
    }
}

.ai-chatbot-send .fa-spinner {
    animation: ai-chatbot-spinner 1s linear infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    .ai-chatbot-toggle {
        bottom: 80px; /* Adjusted for mobile to avoid home button overlap */
        right: var(--ai-spacing-md);
        min-width: auto;
        padding: var(--ai-spacing-sm) var(--ai-spacing-md);
    }
    
    .ai-chatbot-toggle span {
        display: none;
    }
    
    .ai-chatbot-container {
        width: calc(100vw - 2rem);
        height: calc(100vh - 2rem);
        bottom: var(--ai-spacing-md);
        right: var(--ai-spacing-md);
    }
    
    .ai-chatbot-container.ai-chatbot-fullscreen {
        width: 100vw !important;
        height: 100vh !important;
        bottom: 0 !important;
        right: 0 !important;
        left: 0 !important;
        top: 0 !important;
        border-radius: 0 !important;
        transform: none !important;
        z-index: 10000 !important;
    }
    
    .ai-chatbot-message-content {
        max-width: 90%;
    }
    
    .ai-chatbot-quick-actions {
        justify-content: center;
    }
    
    .ai-chatbot-quick-btn {
        font-size: 0.8rem;
        padding: var(--ai-spacing-xs) var(--ai-spacing-sm);
    }
}

@media (max-width: 480px) {
    .ai-chatbot-container {
        width: 100vw;
        height: 100vh;
        bottom: 0;
        right: 0;
        border-radius: 0;
    }
    
    .ai-chatbot-container.ai-chatbot-fullscreen {
        width: 100vw !important;
        height: 100vh !important;
        bottom: 0 !important;
        right: 0 !important;
        left: 0 !important;
        top: 0 !important;
        border-radius: 0 !important;
        transform: none !important;
        z-index: 10000 !important;
    }
    
    .ai-chatbot-header {
        border-radius: 0;
    }
    
    .ai-chatbot-messages {
        padding: var(--ai-spacing-md);
    }
    
    .ai-chatbot-input-area {
        padding: var(--ai-spacing-md);
    }
    
    .ai-chatbot-quick-actions {
        flex-direction: column;
    }
    
    .ai-chatbot-quick-btn {
        text-align: center;
    }
}

/* Accessibility */
.ai-chatbot-toggle:focus,
.ai-chatbot-fullscreen:focus,
.ai-chatbot-close:focus,
.ai-chatbot-send:focus,
.ai-chatbot-input:focus,
.ai-chatbot-quick-btn:focus {
    outline: 2px solid var(--ai-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .ai-chatbot-container {
        border: 2px solid var(--ai-text-primary);
    }
    
    .ai-chatbot-message-content {
        border: 1px solid var(--ai-text-primary);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .ai-chatbot-toggle,
    .ai-chatbot-container,
    .ai-chatbot-message,
    .ai-chatbot-send,
    .ai-chatbot-quick-btn,
    .ai-chatbot-fullscreen,
    .ai-chatbot-close {
        transition: none;
    }
    
    .ai-chatbot-message {
        animation: none;
    }
    
    .ai-chatbot-send .fa-spinner {
        animation: none;
    }
}