/* WhatsApp-inspired chat interface styles */
body {
    font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #e5ddd5;
    background-image: url("data:image/svg+xml,%3Csvg width='64' height='64' viewBox='0 0 64 64' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M8 16c4.418 0 8-3.582 8-8s-3.582-8-8-8-8 3.582-8 8 3.582 8 8 8zm0-2c3.314 0 6-2.686 6-6s-2.686-6-6-6-6 2.686-6 6 2.686 6 6 6zm33.414-6l5.95-5.95L45.95.636 40 6.586 34.05.636 32.636 2.05 38.586 8l-5.95 5.95 1.414 1.414L40 9.414l5.95 5.95 1.414-1.414L41.414 8zM40 48c4.418 0 8-3.582 8-8s-3.582-8-8-8-8 3.582-8 8 3.582 8 8 8zm0-2c3.314 0 6-2.686 6-6s-2.686-6-6-6-6 2.686-6 6 2.686 6 6 6zM9.414 40l5.95-5.95-1.414-1.414L8 38.586l-5.95-5.95L.636 34.05 6.586 40l-5.95 5.95 1.414 1.414L8 41.414l5.95 5.95 1.414-1.414L9.414 40z' fill='%239C92AC' fill-opacity='0.08' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.container {
    max-width: 500px;
    margin: 0 auto;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.header {
    background-color: #075E54;
    color: white;
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid #0c7b70;
}

h1 {
    font-size: 1.2rem;
    margin: 0;
    padding: 0;
}

.character-selection {
    background-color: #F3F3F3;
    padding: 8px 15px;
    border-bottom: 1px solid #E2E2E2;
}

#character-select {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 20px;
    font-size: 0.9rem;
    background-color: white;
}

#chat-box {
    flex-grow: 1;
    overflow-y: auto;
    padding: 15px;
    background-color: #e5ddd5;
    display: flex;
    flex-direction: column;
}

.message {
    max-width: 75%;
    margin-bottom: 12px;
    padding: 8px 12px;
    border-radius: 7.5px;
    position: relative;
    word-wrap: break-word;
    line-height: 1.4;
    box-shadow: 0 1px 0.5px rgba(0, 0, 0, 0.13);
}

.user-message {
    background-color: #dcf8c6;
    align-self: flex-end;
    margin-left: auto;
    border-top-right-radius: 0;
}

.user-message:after {
    content: "";
    position: absolute;
    top: 0;
    right: -8px;
    width: 0;
    height: 0;
    border: 8px solid transparent;
    border-left-color: #dcf8c6;
    border-right: 0;
    border-top: 0;
}

.bot-message {
    background-color: #ffffff;
    align-self: flex-start;
    margin-right: auto;
    border-top-left-radius: 0;
}

.bot-message:after {
    content: "";
    position: absolute;
    top: 0;
    left: -8px;
    width: 0;
    height: 0;
    border: 8px solid transparent;
    border-right-color: #ffffff;
    border-left: 0;
    border-top: 0;
}

.message .sender {
    font-weight: bold;
    font-size: 0.8em;
    margin-bottom: 3px;
    color: #1f7aec;
}

.input-area {
    display: flex;
    padding: 10px;
    background-color: #F3F3F3;
    border-top: 1px solid #E2E2E2;
}

#message-input {
    flex-grow: 1;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 20px;
    margin-right: 8px;
    font-size: 1rem;
}

#send-button {
    background-color: #25D366;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s;
}

#send-button:hover {
    background-color: #1fad54;
}

.typing-indicator {
    font-style: italic;
    color: #666;
}