:root {
    --sage: #7a9e7e;
    --sage-dark: #5c7a5f;
    --ink: #2c2c2c;
    --ink-light: #5a5a5a;
    --rule: #d4d0c8;
    --code-bg: #fafaf8;
}

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

body {
    font-family: 'IBM Plex Sans', sans-serif;
    background-color: var(--cream);
    color: var(--ink);
    line-height: 1.7;
    font-size: 17px;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 80px 24px 120px;
}

header {
    margin-bottom: 24px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.logo {
    width: 72px;
    height: 72px;
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.wordmark {
    font-family: 'IBM Plex Serif', serif;
    font-size: 48px;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.version {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    color: var(--ink-light);
    margin-left: 12px;
    vertical-align: super;
}

.tagline {
    font-family: 'IBM Plex Serif', serif;
    font-size: 12pt;
    color: var(--ink-light);
    font-weight: 400;
    font-style: italic;
}

.divider {
    height: 1px;
    background: var(--rule);
    margin: 24px 0;
}

.divider.thick {
    height: 3px;
    background: var(--sage);
}

section {
    margin-bottom: 48px;
}

.about {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
}

h2 {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-light);
    margin-bottom: 16px;
}

p {
    margin-bottom: 16px;
    color: var(--ink);
}

p:last-child {
    margin-bottom: 0;
}

pre {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    background: var(--code-bg);
    border: 1px solid var(--rule);
    padding: 24px;
    overflow-x: auto;
    margin: 24px 0;
}

code {
    font-family: 'IBM Plex Mono', monospace;
}

.comment { color: var(--sage-dark); }
.keyword { color: #6b5b95; }
.function { color: var(--ink); }
.type { color: #2a6496; }
.string { color: #8b6b4f; }
.number { color: #8b4f6b; }

.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 32px;
    margin-top: 20px;
}

.feature {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
    color: var(--ink);
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.feature::before {
    content: "—";
    color: var(--sage);
}

/* Links */
a {
    color: var(--sage-dark);
    text-decoration: none;
    border-bottom: 1px solid var(--sage);
    transition: border-color 0.2s;
}

a:hover {
    border-color: var(--sage-dark);
}

/* REPL preview */
.repl {
    background: #1a1a1a;
    color: #e0e0e0;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    padding: 20px 24px;
    border-radius: 4px;
    margin: 24px 0;
}

.repl-prompt { color: var(--sage); }
.repl-output { color: #a0a0a0; }
.repl-result { color: #e0e0e0; }

.repl pre {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0 0 8px 0;
    font-size: 13px;
    line-height: 1.4;
}

.repl-ascii {
    color: var(--sage);
}

footer {
    font-size: 14px;
    color: var(--ink-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 24px;
}