:root {
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --primary-text-color: #e0e0e0;
    --secondary-text-color: #b0b0b0;
    --accent-color: #007acc;
    --border-color: #333;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--primary-text-color);
    margin: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

#app-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Chat Panel */
#chat-panel {
    flex: 2; /* Takes 2/3 of the space */
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    background-color: var(--background-color);
}

header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--surface-color);
}

header h1, header h2 {
    margin: 0;
    font-size: 1.2rem;
}

#chat-log {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    line-height: 1.5;
}

.message .content {
    white-space: pre-wrap;
}

.user {
    background-color: var(--accent-color);
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 2px;
}

.assistant {
    background-color: var(--surface-color);
    align-self: flex-start;
    border-bottom-left-radius: 2px;
}

#input-area {
    display: flex;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--surface-color);
}

#user-input {
    flex: 1;
    background-color: #2a2a2a;
    color: var(--primary-text-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem;
    font-size: 1rem;
    resize: none;
    font-family: var(--font-family);
    margin-right: 0.5rem;
}

#user-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

#send-button {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 0 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

#send-button:hover {
    background-color: #005a9e;
}

/* Analysis Panel */
#analysis-panel {
    flex: 1; /* Takes 1/3 of the space */
    display: flex;
    flex-direction: column;
    background-color: var(--surface-color);
}

#analysis-content {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
}

#analysis-content pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: "SF Mono", "Fira Code", monospace;
    font-size: 0.9rem;
    color: var(--secondary-text-color);
    line-height: 1.6;
}