/* BRA Chatbot Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* BRA Brand Colors */
    --primary-color: #1e3a8a;
    --secondary-color: #3b82f6;
    --accent-color: #10b981;
    --success-color: #059669;
    --warning-color: #d97706;
    --error-color: #dc2626;
    
    /* Neutral Colors */
    --white: #ffffff;
    --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;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.logo-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.logo-text h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.logo-text p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.header-info {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
}

.contact-info i {
    color: var(--accent-color);
}

/* Main Content */
.main-content {
    padding: var(--spacing-2xl) 0;
}

/* Welcome Section */
.welcome-section {
    margin-bottom: var(--spacing-2xl);
}

.welcome-card {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.welcome-card h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.welcome-card h2 i {
    color: var(--accent-color);
    margin-right: var(--spacing-sm);
}

.welcome-card > p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.quick-topics h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
}

.topic-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.topic-btn {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.topic-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.topic-btn i {
    font-size: 1rem;
}

/* Chatbot Section */
.chatbot-section {
    margin-bottom: var(--spacing-2xl);
}

.chatbot-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
}

/* Chat Header */
.chat-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.bot-avatar {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.bot-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    opacity: 0.9;
}

.status.online i {
    color: var(--accent-color);
    animation: pulse 2s infinite;
}

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

.action-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Chat Messages */
.chat-messages {
    height: 400px;
    overflow-y: auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.message {
    display: flex;
    gap: var(--spacing-md);
    max-width: 85%;
    animation: fadeInUp 0.3s ease;
}

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

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.bot-message .message-avatar {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
}

.user-message .message-avatar {
    background: var(--accent-color);
    color: var(--white);
}

.message-content {
    flex: 1;
}

.message-text {
    background: var(--gray-100);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    line-height: 1.6;
    white-space: pre-line;
}

.user-message .message-text {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
}

.message-time {
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--gray-500);
    text-align: right;
}

.user-message .message-time {
    text-align: left;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: var(--spacing-md);
    max-width: 85%;
    animation: fadeInUp 0.3s ease;
}

.typing-content {
    background: var(--gray-100);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
}

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

.typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--gray-400);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-dots span:nth-child(1) { animation-delay: 0s; }
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

/* Chat Input */
.chat-input-container {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-md);
}

#messageInput {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    outline: none;
    transition: all 0.3s ease;
}

#messageInput:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#sendButton {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
}

#sendButton:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

#sendButton:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.input-suggestions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.input-suggestions button {
    background: var(--white);
    border: 1px solid var(--gray-300);
    color: var(--gray-600);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.input-suggestions button:hover {
    background: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.input-suggestions button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Information Cards */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto var(--spacing-lg);
}

.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-md);
}

.card p {
    color: var(--gray-600);
    line-height: 1.6;
}

.card a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
}

.card a:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-800);
    color: var(--gray-500);
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

/* Scrollbar Styling */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: var(--gray-100);
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: 3px;
}

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

/* Download Links */
.download-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--success-color) 100%);
    color: var(--white) !important;
    text-decoration: none !important;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.9375rem;
    margin: var(--spacing-md) 0;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download-link:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--success-color) 0%, var(--accent-color) 100%);
    border-color: var(--accent-color);
}

.download-link:active {
    transform: translateY(-1px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.download-link i {
    font-size: 1.125rem;
    margin-right: 8px;
}

/* Ensure download links work properly */
.message-text .download-link {
    display: inline-flex !important;
    align-items: center !important;
    text-decoration: none !important;
    margin: 8px 0 !important;
    padding: 12px 20px !important;
    border-radius: 8px !important;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    color: white !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1) !important;
}

.message-text .download-link:hover {
    transform: translateY(-2px) scale(1.02) !important;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2) !important;
    background: linear-gradient(135deg, #059669 0%, #10b981 100%) !important;
}

.message-text a {
    color: var(--secondary-color);
    text-decoration: underline;
}

.message-text a:hover {
    color: var(--primary-color);
}

.message-text strong {
    font-weight: 600;
    color: var(--gray-800);
}

.bot-message .message-text strong {
    color: var(--gray-700);
}

/* Document message styling */
.message-text[data-type="document"] {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-left: 4px solid var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .logo-text h1 {
        font-size: 1.5rem;
    }
    
    .welcome-card {
        padding: var(--spacing-lg);
    }
    
    .welcome-card h2 {
        font-size: 1.5rem;
    }
    
    .topic-buttons {
        grid-template-columns: 1fr;
    }
    
    .chat-messages {
        height: 350px;
    }
    
    .message {
        max-width: 95%;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--spacing-lg) 0;
    }
    
    .welcome-card {
        padding: var(--spacing-md);
    }
    
    .chatbot-container {
        margin: 0 -var(--spacing-sm);
        border-radius: 0;
    }
    
    .chat-messages {
        height: 300px;
        padding: var(--spacing-md);
    }
    
    .input-suggestions {
        justify-content: center;
    }
}