:root {
    --bg-color: #000000;
    --text-primary: #FFFFFF;
    --text-dim: #888888;
    --accent: #00FF41; /* CRT Phosphor Green */
    --border: #333333;
    --red: #FF3333;
    --green: #33FF33;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-mono);
    line-height: 1.5;
    overflow-x: hidden;
}

/* Background Effects */
.noise-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.05;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.grid-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: -1;
    background-size: 50px 50px;
    background-image: 
      linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
}

/* Navigation */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--accent);
}

.nav-links {
    display: flex;
}

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    margin: 0 1rem;
    transition: color 0.2s, background 0.2s;
    padding: 0.2rem 0.5rem;
}

.nav-links a:hover {
    color: var(--bg-color);
    background: var(--text-primary);
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 255, 65, 0.4); }
    70% { opacity: 0.5; box-shadow: 0 0 0 6px rgba(0, 255, 65, 0); }
    100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 255, 65, 0); }
}

/* Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    min-height: 80vh;
    align-items: center;
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

.hero-text h1 {
    font-size: 5rem;
    line-height: 1;
    font-weight: 800;
    letter-spacing: -4px;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.subtitle {
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.install-block {
    display: flex;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
    width: fit-content;
}

.install-block code {
    padding: 1rem 1.5rem;
    color: var(--text-primary);
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    border-left: 1px solid var(--border);
    padding: 0 1.5rem;
    font-family: var(--font-mono);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--accent);
}

/* Terminal */
.hero-terminal {
    border: 1px solid var(--border);
    background: rgba(0,0,0,0.8);
    height: 500px;
    display: flex;
    flex-direction: column;
}

.term-header {
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1rem;
    display: flex;
    justify-content: space-between;
    color: var(--text-dim);
    font-size: 0.8rem;
    background: #111;
}

.term-body {
    padding: 1.5rem;
    flex: 1;
    overflow-y: auto;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.term-body .prompt { color: var(--accent); margin-right: 0.5rem; }
.term-body .cmd { color: var(--text-primary); }
.term-body .cursor {
    display: inline-block;
    width: 8px;
    height: 15px;
    background: var(--accent);
    animation: blink 1s step-end infinite;
    vertical-align: middle;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Features CP */
.features-section {
    padding: 6rem 0 1rem 0;
    /* border-bottom: 1px solid var(--border); */
}

.section-title {
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2rem;
    color: var(--accent);
    font-weight: 400;
}

.command-palette {
    display: grid;
    grid-template-columns: 300px 1fr;
    border: 1px solid var(--border);
    min-height: 400px;
}

.cp-sidebar {
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.cp-tab {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--text-dim);
    font-family: var(--font-mono);
    text-align: left;
    padding: 1.5rem 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.cp-tab:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

.cp-tab.active {
    background: var(--text-primary);
    color: var(--bg-color);
}

.cp-content {
    padding: 2rem;
    background: #050505;
}

.cp-pane {
    display: none;
    height: 100%;
    flex-direction: column;
}

.cp-pane.active {
    display: flex;
}

.pane-desc {
    margin-top: auto;
    padding-top: 2rem;
    color: var(--accent);
}

/* Diff View & Term Mock */
.diff-view, .term-mock {
    font-size: 0.9rem;
    line-height: 1.6;
}

.diff-header { color: var(--text-dim); margin-bottom: 1rem; }
.diff-line.removed { color: var(--red); }
.diff-line.added { color: var(--green); }
.diff-line.context { color: var(--text-dim); }

.term-mock .prompt { color: var(--accent); margin-right: 0.5rem; }
.term-mock .output { color: var(--text-dim); }

/* FAQ Section */
.faq-section {
    padding: 1rem 0 6rem 0;
    border-bottom: 1px solid var(--border);
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.faq-item {
    border: 1px solid var(--border);
    padding: 2rem;
    background: rgba(255,255,255,0.02);
    transition: background 0.2s;
}

.faq-item:hover {
    background: rgba(0, 255, 65, 0.05);
    border-color: var(--accent);
}

.faq-q {
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.faq-a {
    color: var(--text-dim);
    font-size: 0.95rem;
}

/* Banner */
.banner-section {
    /* border-bottom: 1px solid var(--border);
    border-top: 1px solid var(--border); */
    width: 100%;
    height: 150px;
    overflow: hidden;
    position: relative;
    background: var(--bg-color);
    display: flex;
    align-items: center;
}

.banner-line {
    width: 100%;
    height: 1px;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    position: relative;
}

.banner-cursor {
    width: 24px;
    height: 38px;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
    position: absolute;
    left: 20%;
    bottom: 0;
    animation: cursorBlink 1.2s step-end infinite;
}

@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Footer */
.site-footer {
    padding: 2rem;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    color: var(--text-dim);
    font-size: 0.8rem;
}

.f-col {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.f-col.right {
    text-align: right;
}

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
    }
    
    .hero-text h1 {
        font-size: 3.5rem;
    }
    
    .command-palette {
        grid-template-columns: 1fr;
    }
    
    .cp-sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }
}