:root {
    --bg: #0d1117;
    --bg-elevated: #111827;
    --surface: #161b22;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-primary: #4f46e5;
    --accent-secondary: #22c55e;
    --border: #30363d;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    --radius: 14px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Inter", "Segoe UI", sans-serif;
    line-height: 1.65;
    color: var(--text-primary);
    background:
        radial-gradient(circle at top right, rgba(79, 70, 229, 0.2), transparent 44%),
        radial-gradient(circle at top left, rgba(34, 197, 94, 0.14), transparent 36%),
        var(--bg);
    min-height: 100vh;
}

a {
    color: inherit;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--accent-primary);
    color: #fff;
    padding: 0.6rem 0.85rem;
    border-radius: 0 0 8px 0;
    z-index: 1000;
}

.skip-link:focus {
    left: 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(13, 17, 23, 0.86);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.nav {
    width: min(1120px, 100% - 2rem);
    margin: 0 auto;
    min-height: 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    font-weight: 800;
    letter-spacing: 0.01em;
    text-decoration: none;
}

.nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-primary);
    padding: 0.5rem;
}

.nav-toggle span {
    width: 100%;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
}

.nav-links {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.5rem);
    margin: 0;
    padding: 0.85rem;
    list-style: none;
    display: none;
    flex-direction: column;
    gap: 0.3rem;
    background: rgba(17, 24, 39, 0.98);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.nav-links.is-open {
    display: flex;
}

.nav-links a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.55rem 0.65rem;
    border-radius: 8px;
    transition: background 160ms ease, color 160ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--text-primary);
    background: rgba(79, 70, 229, 0.2);
    outline: none;
}

.container {
    width: min(1120px, 100% - 2rem);
    margin: 0 auto;
}

.narrow {
    max-width: 760px;
}

.section {
    padding: 4.5rem 0;
}

.hero {
    padding-top: 6rem;
}

.eyebrow {
    color: var(--accent-secondary);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 0.78rem;
    margin: 0 0 0.85rem;
}

h1,
h2,
h3 {
    line-height: 1.2;
    margin: 0;
}

h1 {
    font-size: clamp(1.9rem, 7vw, 3.5rem);
    max-width: 18ch;
}

h2 {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.06rem;
}

.section-copy {
    margin: 1rem 0 0;
    color: var(--text-secondary);
    max-width: 68ch;
}

.actions {
    margin-top: 1.6rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding: 0.55rem 1rem;
    border-radius: 10px;
    border: 1px solid transparent;
    text-decoration: none;
    font-weight: 600;
    transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    outline: none;
}

.button-primary {
    background: linear-gradient(135deg, #5a53f1, var(--accent-primary));
    color: #fff;
}

.button-secondary {
    border-color: var(--border);
    background: rgba(230, 237, 243, 0.03);
    color: var(--text-primary);
}

.feature-grid {
    margin-top: 1.25rem;
    display: grid;
    gap: 0.9rem;
}

.feature-card {
    background: linear-gradient(160deg, rgba(22, 27, 34, 0.92), rgba(22, 27, 34, 0.7));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    transition: transform 180ms ease, border-color 180ms ease;
}

.feature-card:hover,
.feature-card:focus-within {
    transform: translateY(-3px);
    border-color: rgba(79, 70, 229, 0.8);
}

.feature-card p {
    margin: 0.6rem 0 0;
    color: var(--text-secondary);
}

.code-block-wrap {
    margin-top: 1.25rem;
    position: relative;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #0b1016;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.code-block-wrap.compact {
    margin-top: 0;
}

pre {
    margin: 0;
    padding: 1.15rem;
    overflow-x: auto;
}

code {
    font-family: "JetBrains Mono", Menlo, Consolas, monospace;
    font-size: 0.86rem;
    color: #c9d1d9;
}

.copy-button {
    position: absolute;
    top: 0.7rem;
    right: 0.7rem;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-radius: 8px;
    min-height: 2rem;
    padding: 0 0.7rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 150ms ease;
}

.copy-button:hover,
.copy-button:focus-visible {
    background: rgba(79, 70, 229, 0.35);
    outline: none;
}

.install-grid {
    margin-top: 1.25rem;
    display: grid;
    gap: 0.8rem;
}

.site-footer {
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
    padding-top: 2rem;
}

.footer-grid {
    display: grid;
    gap: 1.2rem;
}

.footer-brand {
    font-size: 1.2rem;
    margin-bottom: 0.35rem;
}

.footer-tagline {
    margin: 0;
    color: var(--text-secondary);
}

.site-footer h3 {
    margin: 0 0 0.5rem;
    font-size: 0.95rem;
}

.site-footer ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.3rem;
}

.site-footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
    color: var(--text-primary);
}

.copyright {
    margin: 1.5rem 0 0;
    text-align: center;
    color: var(--text-secondary);
    padding: 0.9rem 1rem 1.4rem;
    border-top: 1px solid var(--border);
}

.reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 480ms ease, transform 480ms ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 700px) {
    .nav-toggle {
        display: none;
    }

    .nav-links {
        position: static;
        display: flex;
        flex-direction: row;
        gap: 0.1rem;
        background: none;
        border: 0;
        box-shadow: none;
        padding: 0;
        width: auto;
    }

    .feature-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .install-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-grid {
        grid-template-columns: 1.2fr 1fr 1fr;
        align-items: start;
    }
}

@media (min-width: 980px) {
    .section {
        padding: 5.5rem 0;
    }

    .feature-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}