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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

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

.header {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    text-align: center;
}

.header h1 {
    color: #333;
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1.1em;
}

.chat-container {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    margin-bottom: 20px;
}

.session-info {
    background: #f8f9fa;
    padding: 15px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    align-items: center;
    gap: 15px;
}

.status-badge {
    background: #ffc107;
    color: #000;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
}

.status-badge.active {
    background: #28a745;
    color: white;
}

.status-badge.completed {
    background: #17a2b8;
    color: white;
}

#phone-number {
    color: #666;
    font-size: 0.9em;
}

.messages {
    height: 500px;
    overflow-y: auto;
    padding: 20px;
    background: #f8f9fa;
}

.message {
    margin-bottom: 15px;
    animation: fadeIn 0.3s ease-in;
}

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

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

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

.message-content {
    display: inline-block;
    max-width: 70%;
    padding: 12px 18px;
    border-radius: 18px;
    font-size: 0.95em;
    line-height: 1.4;
    word-wrap: break-word;
}

.message.user .message-content {
    background: #667eea;
    color: white;
    border-bottom-right-radius: 4px;
}

.message.bot .message-content {
    background: white;
    color: #333;
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.message-time {
    display: block;
    font-size: 0.75em;
    color: #999;
    margin-top: 5px;
}

.input-container {
    display: flex;
    gap: 10px;
    padding: 20px;
    background: white;
    border-top: 1px solid #e0e0e0;
}

#message-input {
    flex: 1;
    padding: 12px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    font-size: 1em;
    outline: none;
    transition: border-color 0.3s;
}

#message-input:focus {
    border-color: #667eea;
}

.btn-primary {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.btn-secondary {
    background: #6c757d;
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
    margin-left: auto;
}

.btn-secondary:hover {
    background: #5a6268;
}

.quick-actions {
    padding: 20px;
    background: #f8f9fa;
    border-top: 1px solid #e0e0e0;
}

.quick-actions h3 {
    font-size: 1em;
    color: #666;
    margin-bottom: 10px;
}

.quick-btn {
    background: white;
    border: 2px solid #667eea;
    color: #667eea;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    margin-right: 10px;
    margin-bottom: 10px;
    transition: all 0.3s;
}

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

.debug-panel {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 20px;
}

.debug-panel h3 {
    color: #333;
    margin-bottom: 15px;
}

.debug-content {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.loading {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #667eea;
    margin: 0 3px;
    animation: bounce 1.4s infinite ease-in-out both;
}

.loading:nth-child(1) {
    animation-delay: -0.32s;
}

.loading:nth-child(2) {
    animation-delay: -0.16s;
}

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

.typing-indicator {
    padding: 12px 18px;
    background: white;
    border-radius: 18px;
    display: inline-block;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

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

.messages::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

.messages::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8em;
    }

    .messages {
        height: 400px;
    }

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

    .quick-btn {
        font-size: 0.8em;
        padding: 6px 12px;
    }
}