:root {
    --primary-color: #4a90e2;
    --secondary-color: #f5f5f5;
    --bot-message-bg: #f0f7ff;
    --user-message-bg: #e1f5fe;
    --border-radius: 10px;
    --box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: "Cairo", Arial, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
}

.chat-container {
    max-width: 800px;
    margin: 20px auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
    height: 90vh;
    background-color: white;
    overflow: hidden;
}

.chat-header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px;
    text-align: center;
}

.chat-header h1 {
    margin-bottom: 5px;
    font-weight: 700;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.message {
    display: flex;
    margin-bottom: 15px;
    max-width: 80%;
}

.message.user {
    align-self: flex-end;
}

.message.bot {
    align-self: flex-start;
}

.message-content {
    padding: 12px 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.bot .message-content {
    background-color: var(--bot-message-bg);
    border-bottom-left-radius: 0;
}

.user .message-content {
    background-color: var(--user-message-bg);
    border-bottom-right-radius: 0;
    text-align: right; /* RTL support for Arabic */
}

.message-content p {
    margin-bottom: 8px;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content .english {
    margin-top: 10px;
    border-top: 1px solid #e0e0e0;
    padding-top: 10px;
    direction: ltr;
    text-align: left;
}

.chat-input-container {
    display: flex;
    padding: 15px;
    background-color: white;
    border-top: 1px solid #e0e0e0;
}

#user-input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ccc;
    border-radius: var(--border-radius);
    resize: none;
    font-family: inherit;
    font-size: 1rem;
}

#send-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    width: 50px;
    margin-left: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

#send-button:hover {
    background-color: #3a7bd5;
}

/* Loading/typing indicator */
.typing-indicator {
    display: flex;
    align-items: center;
}

.typing-indicator span {
    height: 8px;
    width: 8px;
    float: left;
    margin: 0 1px;
    background-color: #9e9ea1;
    display: block;
    border-radius: 50%;
    opacity: 0.4;
}

.typing-indicator span:nth-of-type(1) {
    animation: 1s blink infinite 0.3333s;
}

.typing-indicator span:nth-of-type(2) {
    animation: 1s blink infinite 0.6666s;
}

.typing-indicator span:nth-of-type(3) {
    animation: 1s blink infinite 0.9999s;
}

@keyframes blink {
    50% {
        opacity: 1;
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .chat-container {
        height: 100vh;
        margin: 0;
        border-radius: 0;
    }

    .message {
        max-width: 90%;
    }
}