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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 30px;
}

.header-content {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo i {
    font-size: 2.5rem;
    color: #667eea;
}

.logo h1 {
    font-size: 2.2rem;
    color: #333;
    font-weight: 700;
}

.subtitle {
    color: #666;
    font-size: 1.1rem;
    font-weight: 400;
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
    align-items: start;
}

/* Chat Container */
.chat-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    overflow: hidden;
    height: 600px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.bot-avatar {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.bot-info h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.status {
    font-size: 0.9rem;
    opacity: 0.8;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

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

.user-message {
    justify-content: flex-end;
}

.bot-message {
    justify-content: flex-start;
}

.message-content {
    max-width: 70%;
    padding: 15px 20px;
    border-radius: 20px;
    position: relative;
}

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

.bot-message .message-content {
    background: #f8f9fa;
    color: #333;
    border: 1px solid #e9ecef;
    border-bottom-left-radius: 5px;
}

.message-text {
    line-height: 1.5;
    margin-bottom: 5px;
}

.message-time {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Video Container */
.video-container {
    margin: 10px 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.video-container video {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 10px;
}

/* Responsive video */
@media (max-width: 768px) {
    .video-container {
        margin: 8px 0;
    }
    
    .video-container video {
        max-width: 100%;
        height: auto;
    }
}

/* Chat Input */
.chat-input-container {
    padding: 20px;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.input-wrapper {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

#userInput {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

#userInput:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.send-button {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.send-button:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.send-button:active {
    transform: scale(0.95);
}

/* Quick Questions */
.quick-questions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    max-height: 120px;
    overflow-y: auto;
}

.quick-label {
    font-size: 0.9rem;
    color: #666;
    margin-right: 10px;
}

.quick-btn {
    padding: 8px 16px;
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #667eea;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quick-btn:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card, .tips-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.info-card h3, .tips-card h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: #333;
    font-size: 1.1rem;
}

.info-card h3 i {
    color: #667eea;
}

.tips-card h3 i {
    color: #ffc107;
}

.info-content ul {
    list-style: none;
    padding-left: 0;
}

.info-content li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
    padding-left: 20px;
}

.info-content li:before {
    content: "•";
    color: #667eea;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.tips-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tip-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
}

.tip-item i {
    color: #28a745;
    font-size: 1rem;
}

.tip-item span {
    font-size: 0.9rem;
    color: #555;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .sidebar {
        order: -1;
    }
    
    .container {
        padding: 10px;
    }
    
    .chat-container {
        height: 500px;
    }
    
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
}

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

.message {
    animation: fadeInUp 0.3s ease-out;
}

/* Loading Animation */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 15px 20px;
    background: #f8f9fa;
    border-radius: 20px;
    border-bottom-left-radius: 5px;
    max-width: 70%;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: #667eea;
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.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);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}