/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Kanit', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.1);
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    backdrop-filter: blur(10px);
}

.logo-text h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.logo-text p {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 300;
}

.status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.status.online i {
    color: #4ade80;
    animation: pulse 2s infinite;
}

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

/* Chat Container */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 20px;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.05);
    max-height: 500px;
}

/* Message Styles */
.message {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    animation: slideIn 0.3s ease-out;
}

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

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.bot-message .message-avatar {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: white;
}

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

.user-message .message-avatar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.message-content {
    flex: 1;
    max-width: 80%;
}

.message-text {
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
}

.bot-message .message-text {
    border-bottom-left-radius: 5px;
}

.user-message .message-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 5px;
}

.message-text h3 {
    color: #ff6b35;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.user-message .message-text h3 {
    color: white;
}

.message-text ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.message-text li {
    margin-bottom: 0.3rem;
}

.message-time {
    font-size: 0.8rem;
    color: #64748b;
    margin-top: 0.5rem;
    text-align: right;
}

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

.welcome-message .message-text {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px solid #ff6b35;
}

/* Quick Suggestions */
.quick-suggestions {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.suggestions-title {
    font-weight: 600;
    color: #374151;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.suggestions-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.suggestion-btn {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 2px solid #e2e8f0;
    padding: 0.8rem 1.2rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Kanit', sans-serif;
    font-weight: 400;
    color: #374151;
    font-size: 0.9rem;
}

.suggestion-btn:hover {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    color: white;
    border-color: #ff6b35;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

/* Chat Input */
.chat-input-container {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.chat-input {
    display: flex;
    gap: 1rem;
    align-items: center;
}

#messageInput {
    flex: 1;
    padding: 1rem 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 25px;
    font-family: 'Kanit', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

#messageInput:focus {
    border-color: #ff6b35;
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

#sendButton {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

#sendButton:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

#sendButton:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.input-hint {
    font-size: 0.8rem;
    color: #64748b;
    margin-top: 0.8rem;
    text-align: center;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 1.5rem 2rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-info p {
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-info a {
    color: #ff6b35;
    text-decoration: none;
}

.footer-info a:hover {
    text-decoration: underline;
}

.footer-links a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    background: rgba(255, 107, 53, 0.2);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.loading-spinner {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.loading-spinner i {
    font-size: 2rem;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.loading-spinner p {
    color: #374151;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        margin: 0;
        border-radius: 0;
    }
    
    .header {
        padding: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .logo {
        justify-content: center;
    }
    
    .chat-container {
        padding: 1rem;
    }
    
    .message-content {
        max-width: 90%;
    }
    
    .suggestions-list {
        flex-direction: column;
    }
    
    .suggestion-btn {
        width: 100%;
        text-align: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .chat-messages {
        max-height: 400px;
    }
}

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

.chat-messages::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Animation for typing indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: 20px;
    border-bottom-left-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.typing-dots {
    display: flex;
    gap: 0.3rem;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: #ff6b35;
    border-radius: 50%;
    animation: typingDot 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingDot {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}


/* Logo Image Styles */
.logo-image {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background: white;
    padding: 4px;
}

.avatar-image {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
    background: white;
    padding: 2px;
}

/* Responsive adjustments for logo */
@media (max-width: 768px) {
    .logo-image {
        width: 50px;
        height: 50px;
    }
    
    .avatar-image {
        width: 35px;
        height: 35px;
    }
}