:root {
    --bg-color: #0d1117;
    --text-color: #c9d1d9;
    --prompt-color: #58a6ff;
    --command-color: #79c0ff;
    --output-color: #a5d6ff;
    --link-color: #388bfd;
    --header-color: #8b949e;
    --cursor-color: #58a6ff;
    --border-color: #30363d;
    --container-bg: #161b22;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'SF Mono', 'Courier New', Courier, monospace;
    line-height: 1.7;
    margin: 0;
    padding: 2rem;
    font-size: 16px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    background-color: var(--container-bg);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.command-line {
    direction: ltr;
    display: flex;
    align-items: center;
}

.prompt {
    color: var(--prompt-color);
    font-weight: bold;
    margin-right: 0.5rem;
}

.command {
    color: var(--command-color);
    font-weight: bold;
}

.output {
    color: var(--output-color);
    white-space: pre-wrap;
    margin: 1rem 0 2rem 0;
}

h1, h2, h3 {
    color: var(--header-color);
    font-weight: 600;
}

h2 {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    font-size: 1.3rem;
    margin-top: 0;
}

h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

ul {
    list-style: none;
    padding-right: 20px;
}

ul li::before {
    content: "- ";
    color: var(--prompt-color);
}

a {
    color: var(--link-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* افکت ظاهر شدن بخش‌ها */
.terminal-section {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.cursor-line {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.cursor {
    display: inline-block;
    background-color: var(--cursor-color);
    width: 10px;
    height: 1.2em;
    animation: blink 1s step-end infinite;
    vertical-align: bottom;
}

@keyframes blink {
    from, to { background-color: transparent; }
    50% { background-color: var(--cursor-color); }
}