/* static/css/style.css */
:root {
    --bg-color: #f0f2f5;
    --chat-window-bg: #ffffff;
    --text-color: #1c1e21;
    --user-bubble-bg: #0084ff;
    --user-bubble-text: #ffffff;
    --bot-bubble-bg: #e4e6eb;
    --bot-bubble-text: #050505;
    --input-bg: #f0f2f5;
    --border-color: #ced0d4;
    --glow-color: rgba(0, 132, 255, 0.5);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #18191a;
        --chat-window-bg: #242526;
        --text-color: #e4e6eb;
        --user-bubble-bg: #0084ff;
        --user-bubble-text: #ffffff;
        --bot-bubble-bg: #3a3b3c;
        --bot-bubble-text: #e4e6eb;
        --input-bg: #3a3b3c;
        --border-color: #3e4042;
        --glow-color: rgba(0, 132, 255, 0.6);
    }
}

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;
    height: 100vh;
    padding: 1rem;
    box-sizing: border-box;
}

.chat-container {
    width: 100%;
    max-width: 600px;
    height: 90vh;
    max-height: 800px;
    background-color: var(--chat-window-bg);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.status-bar {
    padding: 10px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.connection-status {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #31a24c; /* Green */
}

.chat-window {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Custom Scrollbar */
.chat-window::-webkit-scrollbar {
    width: 6px;
}
.chat-window::-webkit-scrollbar-track {
    background: transparent;
}
.chat-window::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 10px;
}

.message {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    max-width: 80%;
    animation: fadeIn 0.5s ease-in-out;
}

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

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--bot-bubble-bg);
}

.bubble {
    padding: 12px 16px;
    border-radius: 18px;
    line-height: 1.4;
}

.message.user .bubble {
    background-color: var(--user-bubble-bg);
    color: var(--user-bubble-text);
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 10px var(--glow-color);
}

.message.bot .bubble {
    background-color: var(--bot-bubble-bg);
    color: var(--bot-bubble-text);
    border-bottom-left-radius: 4px;
}

.typing-indicator {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 0 20px 10px;
}

.typing-indicator .bubble {
    padding: 12px 16px;
    background-color: var(--bot-bubble-bg);
    border-radius: 18px;
    border-bottom-left-radius: 4px;
    display: flex;
    gap: 5px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-color);
    opacity: 0.7;
    animation: typing 1.2s infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

.input-box {
    display: flex;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

#message-input {
    flex-grow: 1;
    border: none;
    background-color: var(--input-bg);
    color: var(--text-color);
    padding: 12px;
    border-radius: 18px;
    font-size: 1rem;
}

#message-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--user-bubble-bg);
}

#send-button {
    background: none;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    color: var(--user-bubble-bg);
    transition: transform 0.2s;
}

#send-button:hover {
    transform: scale(1.1);
}

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

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}