:root {
    --bg-color: #1a1a1a;
    --surface-color: #2c2c2c;
    --primary-color: #4CAF50;
    --primary-hover-color: #45a049;
    --text-color: #f0f0f0;
    --border-color: #444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#chat-container {
    width: 100%;
    max-width: 600px;
    background-color: var(--surface-color);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.header {
    padding: 15px;
    background-color: #333;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

#status {
    margin: 0;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#status .status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #f44336; /* Vermelho (desconectado) */
    transition: background-color 0.3s ease;
}

#status .status-dot.connected {
    background-color: var(--primary-color); /* Verde (conectado) */
}

#greetings {
    flex-grow: 1;
    padding: 20px;
    height: 300px;
    overflow-y: auto;
    border-bottom: 1px solid var(--border-color);
}

.message {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 12px;
    background-color: #3d3d3d;
    max-width: 80%;
    word-wrap: break-word;
}

#message-form {
    display: flex;
    padding: 15px;
    background-color: #333;
}

#message-input {
    flex-grow: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 20px 0 0 20px;
    background-color: #444;
    color: var(--text-color);
    outline: none;
}

#message-form button {
    padding: 10px 20px;
    border: none;
    background-color: var(--primary-color);
    color: white;
    border-radius: 0 20px 20px 0;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#message-form button:hover {
    background-color: var(--primary-hover-color);
}

#message-form button:disabled {
    background-color: #555;
    cursor: not-allowed;
}

.loader-container {
    padding: 40px;
    text-align: center;
}

.loader {
    border: 4px solid #555;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hidden {
    display: none;
}