/* CSS Variables */
:root {
    --grey-950: #030712;
    --grey-900: #111827;
    --grey-800: #1f2937;
    --grey-700: #374151;
    --grey-600: #4b5563;
    --grey-500: #6b7280;
    --grey-400: #9ca3af;
    --grey-300: #d1d5db;
    --grey-200: #e5e7eb;
    --grey-100: #f3f4f6;
    --grey-50: #f9fafb;

    --bg-black: var(--grey-900);
    --text-white: var(--grey-100);
    --text-gray: var(--grey-300);
    --accent-green: #3af115;
    --accent-green-dim: rgba(0, 255, 65, 0.5);
    --accent-green-ultra-dim: rgba(0, 255, 65, 0.1);
    --code-bg: var(--grey-900);
    --border-gray: var(--grey-800);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;
    background-color: var(--bg-black);
    color: var(--text-white);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Matrix Background */
#matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Container */
.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

/* Typography */
h1,
h2,
h3 {
    color: var(--accent-green);
    font-weight: 600;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    font-weight: 500;
}

p {
    margin-bottom: 1rem;
}

.github-cta {
    display: flex;
    gap: 1rem;
    justify-content: right;
    align-items: center;
    margin: 1rem;
}

.github-icon {
    width: 2rem;
    height: 2rem;
}

.lead {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    text-shadow:
        var(--grey-800) 0px 0px 5px,
        var(--grey-800) 0px 0px 10px,
        var(--grey-800) 0px 0px 15px,
        var(--grey-800) 0px 0px 20px;
}

.hero-container {
    display: flex;
    flex-direction: row;
    gap: 8rem;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
    margin-bottom: 30px;
}

.hero {
    text-align: center;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
}

.terminal-prompt {
    font-size: 1rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
    opacity: 0.7;
}

#terminal {
    background-color: var(--grey-800);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--grey-700);
    flex: none;
    min-width: 0;
    width: 324px;
    height: 514px;
}

#terminal .content .ascii-art {
    color: var(--accent-green);
}

#terminal .action-bar {
    height: 2rem;
    width: 100%;
    background-color: var(--grey-700);
    display: flex;
    gap: 0.5rem;
    justify-content: baseline;
    align-items: center;
    padding: 0 0.5rem;
}
#terminal .action {
    width: 1rem;
    height: 1rem;
    background-color: var(--grey-600);
    border-radius: 100%;
}
#terminal .content {
    font-size: 0.75rem;
    line-height: 1.25;
    padding: 1rem;
}

.hero-title {
    font-size: 5rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px var(--accent-green-dim);
    letter-spacing: -0.03em;
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--text-gray);
}

.btn {
    display: inline-block;
    padding: 0.25rem 0.25rem 0.25rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    text-decoration: none;
    border: 2px solid var(--accent-green);
    border-radius: 8rem;
    transition: all 0.2s ease;
    cursor: pointer;
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    align-items: center;
    line-height: 1;
}

.btn span {
    margin-top: 1px;
}

.btn-primary {
    background-color: var(--accent-green);
    color: var(--bg-black);
    font-weight: 700;
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--accent-green);
    box-shadow: 0 0 20px var(--accent-green-dim);
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-green);
}

.btn-secondary:hover {
    background-color: var(--accent-green-ultra-dim);
    box-shadow: 0 0 20px var(--accent-green-dim);
}

.section {
    margin-bottom: 80px;
}

.install-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.install-card {
    padding: 2rem;
    background-color: var(--code-bg);
    border: 1px solid var(--border-gray);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.install-card:hover {
    border-color: var(--accent-green);
    box-shadow: 0 0 20px var(--accent-green-ultra-dim);
    transform: translateY(-2px);
}

.install-card h3 {
    color: var(--accent-green);
    margin-bottom: 0.75rem;
}

.install-card p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
}

.install-link {
    display: inline-block;
    color: var(--accent-green);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
    font-weight: 600;
}

.install-link:hover {
    border-bottom-color: var(--accent-green);
}

.footer {
    margin-top: 100px;
    padding: 40px 0;
    border-top: 1px solid var(--border-gray);
    text-align: center;
}

.footer-links {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--accent-green);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.footer-links a:hover {
    border-bottom-color: var(--accent-green);
}

.footer-credit {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.footer-credit a {
    color: var(--accent-green);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.footer-credit a:hover {
    border-bottom-color: var(--accent-green);
}

@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }

    .hero-container {
        flex-direction: column;
        gap: 2rem;
        padding: 40px 0;
    }

    .hero {
        text-align: center;
        width: 100%;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-tagline {
        font-size: 1.2rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.3rem;
    }

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

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .footer {
        margin-top: 0;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .code-block {
        font-size: 0.85rem;
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-container {
        padding: 0;
    }
    .hero-title {
        font-size: 2.5rem;
    }

    .github-btn {
        /* appear first in flex child */
        order: 1;
    }

    #terminal {
        width: 264px;
        height: 424px;
    }

    #terminal .content {
        font-size: 0.6rem;
    }
    h2 {
        font-size: 1.75rem;
    }
}