:root{
    --bg: #100d19;
    --deep-purple: #1d1730;
    --orin-primary: #8b5cf6;
    --highlights: #c4b5fd;
    --accents: #67e8f9;
    --text: #e9e4f2;
    --sec-text: #a69bb8;
    --border: #30243f;

    /* added */
    --code-bg: #0b0912;
    --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
    --page-width: 1080px;
    --gutter: 24px;
}

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

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: rgba(139, 92, 246, 0.35);
}

a {
    color: inherit;
}

:focus-visible {
    outline: 2px solid var(--accents);
    outline-offset: 3px;
}

/* ---------- layout ---------- */

.container {
    width: 100%;
    max-width: var(--page-width);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* ---------- nav ---------- */

nav {
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 18px;
    padding-bottom: 18px;
}

.brand {
    display: flex;
    gap: 10px;
    font-size: 24px;
    font-family: var(--mono);
    font-weight: 700;
    align-items: center;
    color: var(--orin-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 28px;
    font-size: 14px;
    color: var(--sec-text);
}

.nav-links a {
    text-decoration: none;
    transition: color 0.15s;
}

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

/* ---------- hero ---------- */

.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    padding-top: 96px;
    padding-bottom: 96px;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 20px;
    font-family: var(--mono);
    font-size: 13px;
    color: var(--sec-text);
}

h1 {
    margin: 0 0 20px;
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.lead {
    max-width: 46ch;
    margin: 0 0 32px;
    font-size: 17px;
    color: var(--sec-text);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    padding: 10px 18px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: border-color 0.15s, background 0.15s;
}

.btn:hover {
    border-color: var(--highlights);
}

.btn-primary {
    background: var(--orin-primary);
    border-color: var(--orin-primary);
    color: var(--bg);
}

.btn-primary:hover {
    background: var(--highlights);
    border-color: var(--highlights);
}

/* ---------- code window ---------- */

.code-window {
    margin: 0;
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.code-window figcaption {
    padding: 10px 20px;
    border-bottom: 1px solid var(--border);
    font-family: var(--mono);
    font-size: 12px;
    color: var(--sec-text);
}

.code-window pre {
    margin: 0;
    padding: 20px;
    overflow-x: auto;
    font-family: var(--mono);
    font-size: 14px;
    line-height: 1.7;
}

.code-window code {
    font-family: inherit;
}

.kw  { color: var(--highlights); }
.str { color: var(--accents); }
.com { color: var(--sec-text); }

/* ---------- principles ---------- */

.principles {
    padding-top: 24px;
    padding-bottom: 96px;
}

h2 {
    margin: 0 0 32px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--mono);
    color: var(--sec-text);
}

dl {
    margin: 0;
}

.row {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    padding: 24px 0;
    border-top: 1px solid var(--border);
}

.row:last-child {
    border-bottom: 1px solid var(--border);
}

dt {
    font-family: var(--mono);
    font-size: 14px;
    color: var(--highlights);
}

dd {
    margin: 0;
    max-width: 56ch;
    color: var(--text);
}

/* ---------- footer ---------- */

footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--sec-text);
}

footer p {
    margin: 0;
}
.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ---------- small screens ---------- */

@media (max-width: 860px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-top: 56px;
        padding-bottom: 56px;
    }

    .row {
        grid-template-columns: 1fr;
        gap: 6px;
    }
}