:root {
    --color-paper: #f5f6f3;
    --color-surface: #ffffff;
    --color-ink: #14181f;
    --color-slate: #5b6472;
    --color-line: #e1e4e8;
    --color-accent: #166534;
    --color-accent-soft: #e7f3ea;

    --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
    --font-sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-paper);
    color: var(--color-ink);
    display: flex;
    justify-content: center;
    padding: 88px 24px 64px;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-accent);
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.page {
    display: flex;
    flex-direction: column;
    gap: 56px;
    max-width: 840px;
    width: 100%;
}

/* Eyebrow labels — the mono/caps device used consistently for real
   structural labels (role, section names), never as decoration. */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.intro .eyebrow {
    margin-bottom: 14px;
}

.intro h1 {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: clamp(32px, 5vw, 44px);
    letter-spacing: -0.01em;
    margin-bottom: 20px;
}

.bio {
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-ink);
    max-width: 580px;
}

.oss-line {
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-slate);
    max-width: 580px;
    margin-top: 14px;
}

.oss-label {
    font-family: var(--font-mono);
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-ink);
}

main .section-label {
    display: block;
    margin-bottom: 20px;
}

.projects {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.card {
    position: relative;
    flex: 1 1 320px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: 10px;
    padding: 28px 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.badge {
    align-self: flex-start;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
    background-color: var(--color-accent-soft);
    border-radius: 4px;
    padding: 3px 8px;
}

.card h2 {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 20px;
    line-height: 1.3;
}

.card .description {
    font-size: 15px;
    line-height: 1.55;
    color: var(--color-slate);
    flex-grow: 1;
}

.stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.stack li {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-slate);
    background-color: var(--color-paper);
    border: 1px solid var(--color-line);
    border-radius: 4px;
    padding: 3px 8px;
}

.links {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 18px;
    padding-top: 4px;
    border-top: 1px solid var(--color-line);
    margin-top: 4px;
}

.links a {
    font-family: var(--font-mono);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.01em;
    padding: 10px 0 0;
}

.links a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.contact {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--color-slate);
    padding-top: 32px;
    border-top: 1px solid var(--color-line);
}

.contact a {
    text-decoration: none;
    font-weight: 600;
}

.contact a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.icon-link {
    display: inline-flex;
    align-items: center;
    color: var(--color-slate);
    transition: color 0.15s ease;
}

.contact a.icon-link:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.divider {
    color: var(--color-line);
}

@media (max-width: 600px) {
    body {
        padding: 56px 20px 48px;
    }

    .page {
        gap: 44px;
    }

    .card {
        flex-basis: 100%;
    }
}