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

/* Import NeXTSTEP-style fonts */
@import url('https://fonts.googleapis.com/css2?family=Helvetica+Neue:wght@300;400;700&family=Courier+Prime&display=swap');

body {
    background: #999999;
    color: #000000;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: 300;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.terminal {
    width: 100%;
    max-width: 900px;
    background: #cccccc;
    border: 1px solid #000000;
    padding: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
}

.ascii-art {
    background: #666666;
    color: #ffffff;
    font-size: 8px;
    line-height: 1.2;
    margin-bottom: 0;
    padding: 12px;
    text-align: center;
    border-bottom: 1px solid #000000;
}

.status-line {
    background: #aaaaaa;
    color: #000000;
    padding: 8px;
    border-bottom: 1px solid #888888;
    margin: 0;
    text-align: center;
    font-weight: 400;
}

.bbs-content {
    min-height: 300px;
    background: #cccccc;
}

.terminal-output {
    min-height: 400px;
    max-height: 500px;
    overflow-y: auto;
    padding: 16px;
    line-height: 1.6;
    background: #e8e8e8;
    border: 1px solid #888888;
    margin: 8px;
}

.terminal-line {
    margin-bottom: 12px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.terminal-line.user {
    color: #000000;
    font-weight: 700;
}

.terminal-line.ai {
    color: #000000;
}

.terminal-line.system {
    color: #555555;
    font-style: italic;
}

.terminal-line.thinking-header {
    color: #444444;
    font-weight: 400;
    font-size: 14px;
    margin-top: 8px;
    margin-bottom: 4px;
}

.terminal-line.thinking {
    color: #666666;
    font-style: italic;
    font-size: 14px;
    padding-left: 8px;
    border-left: 2px solid #999999;
    margin-left: 4px;
    margin-bottom: 6px;
    background: #dddddd;
    padding: 6px 8px;
}

.terminal-line.loading {
    color: #777777;
    font-style: italic;
}

.input-line {
    display: flex;
    align-items: center;
    margin: 8px;
    padding: 10px;
    background: #ffffff;
    border: 1px solid #888888;
}

.prompt {
    color: #000000;
    margin-right: 10px;
    font-weight: 700;
}

.terminal-input {
    flex: 1;
    background: #ffffff;
    border: none;
    color: #000000;
    font-family: 'Courier Prime', 'Courier New', Courier, monospace;
    font-size: 16px;
    outline: none;
}

.terminal-input:focus {
    color: #000000;
}

.footer-line {
    text-align: center;
    padding: 8px;
    margin: 0;
    background: #666666;
    border-top: 1px solid #000000;
    color: #ffffff;
    font-size: 11px;
}

/* Scrollbar styling - NeXTSTEP style */
.terminal-output::-webkit-scrollbar {
    width: 14px;
}

.terminal-output::-webkit-scrollbar-track {
    background: #cccccc;
    border: 1px solid #888888;
}

.terminal-output::-webkit-scrollbar-thumb {
    background: #888888;
    border: 1px solid #666666;
}

.terminal-output::-webkit-scrollbar-thumb:hover {
    background: #666666;
}

/* Loading indicator */
.loading {
    color: #555555;
    font-style: italic;
}

.loading::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Markdown styling for AI responses - NeXTSTEP palette */
.markdown-content {
    color: #000000;
    line-height: 1.6;
}

.ai-prefix {
    color: #000000;
    font-weight: 700;
}

/* Headings with NeXTSTEP style */
.markdown-content h1 {
    color: #000000;
    font-size: 1.8em;
    font-weight: 700;
    margin: 1em 0 0.5em 0;
    border-bottom: 2px solid #000000;
    padding-bottom: 0.3em;
}

.markdown-content h2 {
    color: #222222;
    font-size: 1.5em;
    font-weight: 700;
    margin: 0.9em 0 0.4em 0;
    border-bottom: 1px solid #666666;
    padding-bottom: 0.2em;
}

.markdown-content h3 {
    color: #333333;
    font-size: 1.3em;
    font-weight: 700;
    margin: 0.8em 0 0.3em 0;
}

.markdown-content h4 {
    color: #444444;
    font-size: 1.2em;
    font-weight: 700;
    margin: 0.7em 0 0.3em 0;
}

.markdown-content h5,
.markdown-content h6 {
    color: #555555;
    font-size: 1.1em;
    font-weight: 700;
    margin: 0.6em 0 0.2em 0;
}

/* Text formatting */
.markdown-content strong {
    color: #000000;
    font-weight: 700;
}

.markdown-content em {
    color: #333333;
    font-style: italic;
}

.markdown-content code {
    background: #dddddd;
    color: #000000;
    padding: 0.2em 0.5em;
    border: 1px solid #aaaaaa;
    border-radius: 2px;
    font-family: 'Courier Prime', 'Courier New', Courier, monospace;
    font-size: 14px;
}

.markdown-content pre {
    background: #f5f5f5;
    color: #000000;
    padding: 1em;
    border: 1px solid #aaaaaa;
    overflow-x: auto;
    margin: 1em 0;
}

.markdown-content pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: #000000;
}

/* Lists */
.markdown-content ul,
.markdown-content ol {
    margin: 0.5em 0 0.5em 2em;
    color: #000000;
}

.markdown-content li {
    margin: 0.4em 0;
}

.markdown-content ul li::marker {
    color: #666666;
}

.markdown-content ol li::marker {
    color: #666666;
}

/* Links */
.markdown-content a {
    color: #000000;
    text-decoration: underline;
    font-weight: 700;
}

.markdown-content a:hover {
    color: #333333;
}

/* Blockquotes */
.markdown-content blockquote {
    border-left: 3px solid #666666;
    padding-left: 1em;
    margin: 1em 0;
    color: #444444;
    font-style: italic;
}

/* Tables */
.markdown-content table {
    border-collapse: collapse;
    margin: 1em 0;
    width: 100%;
}

.markdown-content th,
.markdown-content td {
    border: 1px solid #888888;
    padding: 0.5em;
    text-align: left;
}

.markdown-content th {
    background: #aaaaaa;
    color: #000000;
    font-weight: 700;
}

.markdown-content td {
    color: #000000;
}

/* Horizontal rule */
.markdown-content hr {
    border: none;
    border-top: 1px solid #888888;
    margin: 1em 0;
}

/* Paragraphs */
.markdown-content p {
    margin: 0.6em 0;
    color: #000000;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .ascii-art {
        font-size: 6px;
    }

    .terminal {
        padding: 10px;
        font-size: 14px;
    }

    .terminal-output {
        min-height: 300px;
        max-height: 400px;
    }

    .markdown-content h1 {
        font-size: 1.5em;
    }

    .markdown-content h2 {
        font-size: 1.3em;
    }
}