:root {
    --cmd-bg: #000000;
    --cmd-text: #00ff00; /* Hacker Green */
    --cmd-primary: #008800;
    --cmd-secondary: #111111;
    --cmd-accent: #ffffff;
    --cmd-font: 'Courier New', Courier, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--cmd-bg); color: var(--cmd-text);
    font-family: var(--cmd-font); line-height: 1.5;
    overflow-x: hidden;
}

/* Scanline Effect */
body::after {
    content: " "; display: block; position: fixed;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    z-index: 999; background-size: 100% 2px, 3px 100%; pointer-events: none;
}

.cmd-container { max-width: 1000px; margin: 0 auto; padding: 20px;}

/* Header / Prompt */
.cmd-header {
    margin-bottom: 40px; padding-bottom: 20px; border-bottom: 1px dashed var(--cmd-primary);
}
.cmd-brand {
    font-size: 24px; font-weight: bold; margin-bottom: 10px;
}
.cmd-brand::before { content: 'root@kuamiao:~# '; color: var(--cmd-accent); }
.cmd-nav { display: flex; gap: 20px; flex-wrap: wrap;}
.cmd-nav a {
    color: var(--cmd-text); text-decoration: none;
}
.cmd-nav a::before { content: '[ '; color: var(--cmd-primary); }
.cmd-nav a::after { content: ' ]'; color: var(--cmd-primary); }
.cmd-nav a:hover, .cmd-nav a.active { color: var(--cmd-accent); background: var(--cmd-primary); }

/* Terminal Block */
.cmd-block {
    background: var(--cmd-secondary); border: 1px solid var(--cmd-primary);
    padding: 20px; margin-bottom: 30px; position: relative;
}
.cmd-block::before {
    content: 'Terminal - bash'; position: absolute; top: -10px; left: 10px;
    background: var(--cmd-bg); padding: 0 10px; font-size: 12px; color: var(--cmd-primary);
}

.cmd-prompt { color: var(--cmd-accent); margin-bottom: 10px;}
.cmd-prompt::before { content: '$ '; color: var(--cmd-primary); }

/* Hero */
.cmd-hero h1 { font-size: 32px; margin-bottom: 20px; text-transform: uppercase;}
.cmd-hero p { margin-bottom: 20px; font-size: 16px;}

.btn-cmd {
    display: inline-block; padding: 10px 20px; color: var(--cmd-bg); background: var(--cmd-text);
    text-decoration: none; font-weight: bold; margin-right: 15px; border: 1px solid var(--cmd-text);
}
.btn-cmd:hover { background: var(--cmd-bg); color: var(--cmd-text); }

/* Stats Table */
.cmd-table { width: 100%; border-collapse: collapse; margin-bottom: 20px;}
.cmd-table th, .cmd-table td {
    border: 1px solid var(--cmd-primary); padding: 10px; text-align: left;
}
.cmd-table th { color: var(--cmd-accent); }

/* Features List */
.cmd-features ul { list-style: none; }
.cmd-features li { margin-bottom: 15px; padding-left: 20px; position: relative;}
.cmd-features li::before { content: '>'; position: absolute; left: 0; color: var(--cmd-accent); }
.cmd-features h3 { font-size: 18px; margin-bottom: 5px; color: var(--cmd-accent);}

/* Nodes */
.cmd-nodes .node-line {
    display: flex; justify-content: space-between; border-bottom: 1px dotted var(--cmd-primary);
    padding: 5px 0;
}
.node-status { color: var(--cmd-accent); }

/* FAQ */
.cmd-faq .faq-q { color: var(--cmd-accent); font-weight: bold; margin-bottom: 5px;}
.cmd-faq .faq-q::before { content: '? '; }
.cmd-faq .faq-a { margin-bottom: 20px; padding-left: 20px;}
.cmd-faq .faq-a::before { content: '> '; color: var(--cmd-primary); }

footer {
    text-align: center; padding: 20px 0; border-top: 1px dashed var(--cmd-primary);
    font-size: 12px; margin-top: 50px;
}

/* Blinking Cursor */
.cursor {
    display: inline-block; width: 10px; height: 1.2em; background: var(--cmd-text);
    animation: blink 1s step-end infinite; vertical-align: bottom;
}
@keyframes blink { 50% { opacity: 0; } }

@media (max-width: 768px) {
    .cmd-brand { font-size: 18px; }
    .cmd-hero h1 { font-size: 24px; }
    .cmd-nav { flex-direction: column; gap: 10px;}
    .btn-cmd { display: block; margin-bottom: 10px; text-align: center;}
}