body { font-family: sans-serif; margin: 0; padding: 0; background-color: #f4f4f9; }
header { background: #075e54; color: white; padding: 1rem; text-align: center; }
nav { background: #128c7e; padding: 0.5rem; text-align: center; }
nav a { color: white; text-decoration: none; margin: 0 15px; font-weight: bold; }
nav a:hover { text-decoration: underline; }
.container { padding: 20px; max-width: 800px; margin: auto; }
.card { background: white; padding: 20px; margin-bottom: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
h1, h2 { color: #333; }
table { width: 100%; border-collapse: collapse; margin-top: 10px; }
th, td { padding: 10px; border-bottom: 1px solid #ddd; text-align: left; }
th { background-color: #eee; }
.status-select { padding: 5px; }
.btn { padding: 5px 10px; cursor: pointer; background: #25d366; border: none; color: white; border-radius: 4px; }
.stat-box { display: inline-block; width: 45%; background: #e0f2f1; padding: 15px; margin: 2%; border-radius: 5px; text-align: center; }
.stat-number { font-size: 2em; font-weight: bold; color: #075e54; }

/* Chat Simulator */
.chat-box { border: 1px solid #ddd; height: 400px; overflow-y: scroll; padding: 10px; background: #e5ddd5; display: flex; flex-direction: column; }
.message { max-width: 70%; margin: 5px; padding: 10px; border-radius: 10px; font-size: 0.9em; }
.message.in { align-self: flex-start; background: white; border-top-left-radius: 0; }
.message.out { align-self: flex-end; background: #dcf8c6; border-top-right-radius: 0; }
.input-area { margin-top: 10px; display: flex; gap: 10px; }
.input-area input { flex: 1; padding: 10px; border: 1px solid #ddd; border-radius: 5px; }
.input-area button { padding: 10px 20px; background: #128c7e; color: white; border: none; border-radius: 5px; cursor: pointer; }
.helper-buttons { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 5px; }
.helper-btn { background: #eee; border: 1px solid #ccc; padding: 5px 10px; font-size: 0.8em; cursor: pointer; border-radius: 15px; }
.helper-btn:hover { background: #ddd; }

/* Chat Simulator */
.chat-box { border: 1px solid #ddd; height: 400px; overflow-y: scroll; padding: 10px; background: #e5ddd5; display: flex; flex-direction: column; }
.message { max-width: 70%; margin: 5px; padding: 10px; border-radius: 10px; font-size: 0.9em; }
.message.in { align-self: flex-start; background: white; border-top-left-radius: 0; }
.message.out { align-self: flex-end; background: #dcf8c6; border-top-right-radius: 0; }
.input-area { margin-top: 10px; display: flex; gap: 10px; }
.input-area input { flex: 1; padding: 10px; border: 1px solid #ddd; border-radius: 5px; }
.input-area button { padding: 10px 20px; background: #128c7e; color: white; border: none; border-radius: 5px; cursor: pointer; }
.helper-buttons { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 5px; }
.helper-btn { background: #eee; border: 1px solid #ccc; padding: 5px 10px; font-size: 0.8em; cursor: pointer; border-radius: 15px; }
.helper-btn:hover { background: #ddd; }