/* CVG Chat - CVG Nexus Professional Theme (Matching Website) */
:root {
    /* Primary CVG Nexus Color Palette - Green Theme */
    --cvg-primary: #4a7c59;
    --cvg-secondary: #3d6b47;
    --cvg-accent: #5a8f6a;
    --cvg-accent-light: #7ba68a;
    --cvg-accent-dark: #2f5233;
    
    /* CVG Brand Colors - Green Palette */
    --cvg-green: #4a7c59;
    --cvg-green-light: #6b9976;
    --cvg-green-dark: #2f5233;
    --cvg-orange: #ff6b35;
    --cvg-orange-light: #ff8c5a;
    
    /* Status Colors */
    --cvg-success: #4a7c59;
    --cvg-warning: #ff6b35;
    --cvg-danger: #dc2626;
    --cvg-info: #5a8f6a;
    
    /* Neutral Colors */
    --cvg-gray-50: #f8fafc;
    --cvg-gray-100: #f1f5f9;
    --cvg-gray-200: #e2e8f0;
    --cvg-gray-300: #cbd5e1;
    --cvg-gray-400: #94a3b8;
    --cvg-gray-500: #64748b;
    --cvg-gray-600: #475569;
    --cvg-gray-700: #334155;
    --cvg-gray-800: #1e293b;
    --cvg-gray-900: #0f172a;
    
    /* Legacy Mappings for Compatibility */
    --cvg-light: var(--cvg-gray-50);
    --cvg-dark: var(--cvg-gray-800);
    --cvg-white: #ffffff;
    --cvg-border: var(--cvg-gray-300);
    
    /* Sophisticated Shadows */
    --cvg-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --cvg-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --cvg-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --cvg-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --cvg-shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Premium Gradients - Green CVG Nexus Theme */
    --cvg-gradient: linear-gradient(135deg, var(--cvg-primary) 0%, var(--cvg-green) 50%, var(--cvg-accent) 100%);
    --cvg-gradient-subtle: linear-gradient(135deg, var(--cvg-gray-50) 0%, var(--cvg-gray-100) 100%);
    --cvg-gradient-brand: linear-gradient(135deg, var(--cvg-green-dark) 0%, var(--cvg-green) 50%, var(--cvg-accent-light) 100%);
    
    /* Typography Scale */
    --cvg-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --cvg-font-family-mono: 'SF Mono', Monaco, Inconsolata, 'Roboto Mono', monospace;
    
    /* Border Radius */
    --cvg-radius-sm: 0.375rem;
    --cvg-radius: 0.5rem;
    --cvg-radius-md: 0.75rem;
    --cvg-radius-lg: 1rem;
    --cvg-radius-xl: 1.5rem;
    
    /* Transitions */
    --cvg-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --cvg-transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --cvg-transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--cvg-font-family);
    line-height: 1.6;
    color: var(--cvg-gray-800);
    background: var(--cvg-gradient-subtle);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Chat Container */
#chat-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 400px;
    height: 640px;
    background: var(--cvg-white);
    border-radius: var(--cvg-radius-xl);
    box-shadow: var(--cvg-shadow-xl);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transform: translateY(100%);
    transition: var(--cvg-transition-slow);
    border: 1px solid var(--cvg-gray-200);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

#chat-container.open {
    transform: translateY(0);
}

/* Chat Header */
.chat-header {
    background: var(--cvg-gradient-brand);
    color: var(--cvg-white);
    padding: 20px 24px;
    border-radius: var(--cvg-radius-xl) var(--cvg-radius-xl) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.chat-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, transparent 50%, rgba(255,255,255,0.1) 100%);
    pointer-events: none;
}

.chat-logo h1 {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.025em;
}

.chat-logo .subtitle {
    font-size: 13px;
    opacity: 0.9;
    font-weight: 500;
    margin-top: 2px;
    color: var(--cvg-gray-100);
}

.minimize-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: var(--cvg-white);
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--cvg-radius);
    transition: var(--cvg-transition);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    z-index: 1;
}

.minimize-btn:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: scale(1.05);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: var(--cvg-white);
}

.message {
    display: flex;
    margin-bottom: 15px;
    align-items: flex-start;
}

.message-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--cvg-primary);
    color: var(--cvg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    margin-right: 10px;
    flex-shrink: 0;
}

.user-message .message-avatar {
    background: var(--cvg-success);
    order: 1;
    margin-right: 0;
    margin-left: 10px;
}

.message-content {
    max-width: 75%;
    background: var(--cvg-light);
    padding: 12px 15px;
    border-radius: 18px;
    position: relative;
}

.user-message .message-content {
    background: var(--cvg-primary);
    color: var(--cvg-white);
    margin-left: auto;
}

.message-content p {
    margin: 0;
    font-size: 14px;
    line-height: 1.4;
}

.message-time {
    font-size: 11px;
    opacity: 0.7;
    margin-top: 5px;
    display: block;
}

/* Predefined Options */
.predefined-options {
    padding: 15px 20px 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    background: var(--cvg-white);
    border-top: 1px solid var(--cvg-border);
}

.option-btn {
    background: var(--cvg-light);
    border: 1px solid var(--cvg-border);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--cvg-dark);
}

.option-btn:hover {
    background: var(--cvg-primary);
    color: var(--cvg-white);
    border-color: var(--cvg-primary);
}

/* Chat Input */
.chat-input-area {
    display: flex;
    padding: 10px 20px;
    background: var(--cvg-white);
    align-items: center;
    gap: 10px;
}

#chat-input {
    flex: 1;
    border: 1px solid var(--cvg-border);
    border-radius: 25px;
    padding: 12px 18px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

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

.send-btn {
    background: var(--cvg-primary);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    color: var(--cvg-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.send-btn:hover {
    background: var(--cvg-secondary);
}

.send-btn:disabled {
    background: var(--cvg-border);
    cursor: not-allowed;
}

/* File Upload */
.file-upload-area {
    padding: 0 20px 15px;
    background: var(--cvg-white);
}

.file-upload-btn {
    display: inline-block;
    color: var(--cvg-primary);
    font-size: 12px;
    cursor: pointer;
    padding: 5px 0;
    text-decoration: none;
    transition: color 0.2s;
}

.file-upload-btn:hover {
    color: var(--cvg-secondary);
}

#file-input {
    display: none;
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--cvg-gradient);
    border-radius: 30px;
    padding: 15px 20px;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--cvg-shadow);
    transition: all 0.3s ease;
    z-index: 999;
}

.chat-widget:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(74, 124, 89, 0.3);
}

.chat-bubble {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--cvg-white);
}

.chat-icon {
    font-size: 18px;
}

.chat-text {
    font-size: 14px;
    font-weight: 500;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: var(--cvg-white);
    margin: 2% auto;
    padding: 20px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 95vh;
    overflow-y: auto;
    position: relative;
    display: flex;
    flex-direction: column;
}

#contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    min-height: auto;
}

#contact-form button[type="submit"] {
    margin-top: 20px;
    background: var(--cvg-primary);
    color: var(--cvg-white);
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

#contact-form button[type="submit"]:hover {
    background: var(--cvg-secondary);
}

.close {
    position: absolute;
    right: 15px;
    top: 15px;
    color: var(--cvg-dark);
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--cvg-danger);
}

#contact-form input,
#contact-form select {
    padding: 12px;
    border: 1px solid var(--cvg-border);
    border-radius: 6px;
    font-size: 14px;
}

.start-chat-button {
    background: var(--cvg-primary) !important;
    color: var(--cvg-white) !important;
    border: none !important;
    padding: 15px 20px !important;
    border-radius: 8px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    width: 100% !important;
    margin-top: 20px !important;
    transition: background-color 0.2s !important;
    display: block !important;
    text-align: center !important;
}

.start-chat-button:hover {
    background: var(--cvg-secondary) !important;
}

/* Support Type Selection */
.support-type-selection {
    margin: 20px 0;
}

.support-type-selection h3 {
    font-size: 16px;
    margin-bottom: 15px;
    color: var(--cvg-dark);
    text-align: center;
}

.support-options {
    display: flex;
    gap: 15px;
    flex-direction: column;
}

.support-option {
    cursor: pointer;
    display: block;
}

.support-option input[type="radio"] {
    display: none;
}

.option-card {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 2px solid var(--cvg-border);
    border-radius: 8px;
    transition: all 0.2s;
    background: var(--cvg-white);
}

.support-option input[type="radio"]:checked + .option-card {
    border-color: var(--cvg-primary);
    background: rgba(74, 124, 89, 0.05);
}

.option-card:hover {
    border-color: var(--cvg-accent);
    box-shadow: 0 2px 8px rgba(74, 124, 89, 0.1);
}

.option-icon {
    font-size: 24px;
    margin-right: 12px;
    flex-shrink: 0;
}

.option-details {
    flex: 1;
}

.option-details strong {
    display: block;
    font-size: 14px;
    color: var(--cvg-dark);
    margin-bottom: 4px;
}

.option-details p {
    font-size: 12px;
    color: var(--cvg-border);
    margin: 0;
    line-height: 1.3;
}

/* Support mode indicators in chat */
.chat-mode-indicator {
    background: var(--cvg-light);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 11px;
    color: var(--cvg-dark);
    margin-bottom: 10px;
    text-align: center;
    border: 1px solid var(--cvg-border);
}

.chat-mode-indicator.bot-mode {
    background: rgba(74, 144, 226, 0.1);
    border-color: var(--cvg-accent);
    color: var(--cvg-primary);
}

.chat-mode-indicator.human-mode {
    background: rgba(40, 167, 69, 0.1);
    border-color: var(--cvg-success);
    color: var(--cvg-success);
}

/* Responsive Design */
@media (max-width: 768px) {
    #chat-container {
        width: 100%;
        height: 100%;
        bottom: 0;
        right: 0;
        border-radius: 0;
    }
    
    .chat-widget {
        bottom: 15px;
        right: 15px;
    }
    
    .predefined-options {
        flex-direction: column;
    }
    
    .option-btn {
        width: 100%;
        text-align: center;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

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

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 15px;
    background: var(--cvg-light);
    border-radius: 18px;
    margin-bottom: 15px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cvg-primary);
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-10px); }
}