/*
Multi-language Chatbot Styles
Author: RSK World (https://rskworld.in)
Founder: Molla Samser
Designer & Tester: Rima Khatun
Contact: help@rskworld.in, +91 93305 39277
Year: 2026
Description: Modern CSS styles for multi-language chatbot interface
*/

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 0.5rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f5f7fa;
    line-height: 1.6;
}

/* Gradient Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
}

/* Header Styles */
header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

header h1 {
    font-weight: 600;
}

/* Card Styles */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    border-bottom: 1px solid #e9ecef;
    font-weight: 600;
}

/* Chat Messages Container */
.chat-messages {
    height: 500px;
    overflow-y: auto;
    padding: 1.5rem;
    background: linear-gradient(to bottom, #ffffff, #f8f9fa);
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Message Styles */
.message {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-user {
    text-align: right;
}

.message-bot {
    text-align: left;
}

.message-bubble {
    display: inline-block;
    max-width: 70%;
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    word-wrap: break-word;
    position: relative;
}

.message-user .message-bubble {
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: 0.25rem;
}

.message-bot .message-bubble {
    background: white;
    color: var(--dark-color);
    border: 1px solid #e9ecef;
    border-bottom-left-radius: 0.25rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.message-meta {
    font-size: 0.75rem;
    color: #6c757d;
    margin-top: 0.25rem;
}

.message-user .message-meta {
    color: rgba(255, 255, 255, 0.7);
}

.language-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 1rem;
    margin-left: 0.5rem;
}

/* Input Area Styles */
.input-group .form-control {
    border-right: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group .btn {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Button Styles */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: #0056b3;
    border-color: #0056b3;
}

.btn-outline-secondary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

/* Quick Action Buttons */
.btn-sm {
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
}

/* Status Badge */
.status-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.25rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(40, 167, 69, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(40, 167, 69, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(40, 167, 69, 0);
    }
}

/* Stats Cards */
.stats-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    text-align: center;
    border: 1px solid #e9ecef;
    transition: var(--transition);
}

.stats-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.stats-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stats-label {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 0.25rem;
}

/* Loading Spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .chat-messages {
        height: 400px;
    }
    
    .message-bubble {
        max-width: 85%;
    }
    
    header h1 {
        font-size: 1.25rem;
    }
    
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

@media (max-width: 576px) {
    .chat-messages {
        height: 350px;
        padding: 1rem;
    }
    
    .message-bubble {
        max-width: 90%;
        font-size: 0.9rem;
    }
    
    .btn-sm {
        font-size: 0.75rem;
        padding: 0.2rem 0.5rem;
    }
}

/* RTL Support */
[dir="rtl"] .message-user {
    text-align: left;
}

[dir="rtl"] .message-bot {
    text-align: right;
}

[dir="rtl"] .message-user .message-bubble {
    border-bottom-right-radius: 1rem;
    border-bottom-left-radius: 0.25rem;
}

[dir="rtl"] .message-bot .message-bubble {
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 0.25rem;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #ffffff;
    }
    
    .card {
        background-color: #2d2d2d;
        color: #ffffff;
    }
    
    .message-bot .message-bubble {
        background-color: #3d3d3d;
        color: #ffffff;
        border-color: #4d4d4d;
    }
    
    .chat-messages {
        background: linear-gradient(to bottom, #2d2d2d, #1a1a1a);
    }
    
    .form-control {
        background-color: #3d3d3d;
        border-color: #4d4d4d;
        color: #ffffff;
    }
    
    .form-control:focus {
        background-color: #3d3d3d;
        border-color: var(--primary-color);
        color: #ffffff;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-up {
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Custom Scrollbar */
.custom-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: #c1c1c1 #f1f1f1;
}

.custom-scrollbar::-webkit-scrollbar {
    width: 8px;
}

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

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}