/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 900px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    height: 90vh;
    max-height: 800px;
}

/* Header */
header {
    padding: 24px;
    border-bottom: 2px solid #f0f0f0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 16px 16px 0 0;
}

header h1 {
    font-size: 28px;
    margin-bottom: 4px;
}

header .subtitle {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 12px;
}

.status {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.connected {
    background: #10b981;
    color: white;
}

.status-badge.disconnected {
    background: #ef4444;
    color: white;
}

.status-badge.connecting {
    background: #f59e0b;
    color: white;
}

/* Chat container */
.chat-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #f9fafb;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Message styles */
.message {
    display: flex;
    gap: 12px;
    animation: slideIn 0.3s ease-out;
}

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

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

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: #667eea;
}

.message.agent .message-avatar {
    background: #10b981;
}

.message.system .message-avatar {
    background: #6b7280;
}

.message-content {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 12px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.message.user .message-content {
    background: #667eea;
    color: white;
}

.message.agent .message-content {
    background: white;
    color: #1f2937;
    border: 1px solid #e5e7eb;
}

.message.system .message-content {
    background: #f3f4f6;
    color: #6b7280;
    font-style: italic;
}

.message.error .message-content {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: white;
    border-radius: 12px;
    width: fit-content;
    border: 1px solid #e5e7eb;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #9ca3af;
    animation: bounce 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: -0.16s;
}

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

/* Input container */
.input-container {
    padding: 20px;
    border-top: 2px solid #f0f0f0;
    background: white;
    display: flex;
    gap: 12px;
}

#message-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    resize: none;
    max-height: 120px;
    transition: border-color 0.2s;
}

#message-input:focus {
    outline: none;
    border-color: #667eea;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Info section */
.info {
    padding: 16px 20px;
    border-top: 1px solid #f0f0f0;
    background: #fafafa;
    border-radius: 0 0 16px 16px;
}

.info details {
    cursor: pointer;
}

.info summary {
    font-weight: 600;
    color: #667eea;
    user-select: none;
}

.info ul {
    margin-top: 12px;
    padding-left: 20px;
}

.info li {
    margin-bottom: 8px;
    color: #6b7280;
    font-size: 14px;
}

.info strong {
    color: #1f2937;
}

/* Scrollbar styling */
.chat-container::-webkit-scrollbar {
    width: 8px;
}

.chat-container::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.chat-container::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}

.chat-container::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        height: 100vh;
        max-height: none;
        border-radius: 0;
    }

    header h1 {
        font-size: 24px;
    }

    .message-content {
        max-width: 85%;
    }
}