:root {
    --bg:           #0f1115;
    --bg-elev:      #161922;
    --fg:           #e6e8eb;
    --fg-dim:       #9aa3ad;
    --accent:       #7dd3fc;
    --border:       #232733;
    --border-soft:  #1c202a;
    --code-bg:      #0a0c11;
    --shadow:       0 1px 0 rgba(255, 255, 255, 0.03), 0 2px 12px rgba(0, 0, 0, 0.25);
}

@media (prefers-color-scheme: light) {
    :root {
        --bg:           #ffffff;
        --bg-elev:      #f7f8fa;
        --fg:           #1c2128;
        --fg-dim:       #5b6470;
        --accent:       #0369a1;
        --border:       #e1e4e8;
        --border-soft:  #eef0f3;
        --code-bg:      #f3f5f8;
        --shadow:       0 1px 0 rgba(0, 0, 0, 0.02), 0 2px 12px rgba(0, 0, 0, 0.06);
    }
}

* { box-sizing: border-box; }

html {
    background: var(--bg);
    color: var(--fg);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    font-feature-settings: "cv11", "ss03";
    line-height: 1.55;
}

body {
    margin: 0;
    padding: 0 1.25rem 4rem;
    max-width: 880px;
    margin-inline: auto;
}

a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s ease;
}
a:hover { border-bottom-color: var(--accent); }

h1, h2, h3 {
    color: var(--fg);
    line-height: 1.25;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 1.25rem;
    margin-top: 0;
    margin-bottom: 1rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--border-soft);
}

h3 {
    font-size: 1.05rem;
    margin: 0 0 0.4rem;
}

p { margin: 0 0 0.9rem; }

code, .whoami, pre {
    font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.85em;
}

.hero {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--border-soft);
    margin-bottom: 2.5rem;
}

.whoami {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem 1.2rem;
    white-space: pre;
    overflow-x: auto;
    color: var(--fg);
    box-shadow: var(--shadow);
    margin: 0 0 1.5rem;
}

.tagline {
    font-size: 1.05rem;
    color: var(--fg-dim);
    max-width: 64ch;
    margin: 0 0 1.5rem;
}

.hero-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-links a {
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 2px;
}
.hero-links a:hover { border-bottom-color: var(--accent); }

.block {
    margin-bottom: 2.5rem;
}

.work {
    padding-left: 1.2rem;
    margin: 0;
}
.work li {
    margin-bottom: 0.6rem;
    color: var(--fg-dim);
}
.work li strong { color: var(--fg); font-weight: 600; }

.cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 720px) {
    .cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

.card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.1rem 1.2rem;
    box-shadow: var(--shadow);
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.card:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
}

.card-meta {
    font-size: 0.82rem;
    color: var(--fg-dim);
    margin: 0 0 0.6rem;
    font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
}

.card p { margin: 0 0 0.6rem; color: var(--fg-dim); font-size: 0.92rem; }

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 0;
}
.card-tags span {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 1px 0.6rem;
    font-size: 0.75rem;
    color: var(--fg-dim);
    font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
}

.stack {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.4rem 1rem;
    margin: 0;
}

@media (min-width: 640px) {
    .stack {
        grid-template-columns: max-content 1fr;
    }
}

.stack dt {
    font-weight: 600;
    color: var(--fg);
    font-size: 0.9rem;
}
.stack dd {
    margin: 0 0 0.7rem;
    color: var(--fg-dim);
    font-size: 0.92rem;
}

.certs {
    font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
    font-size: 0.95rem;
    color: var(--fg-dim);
}

footer {
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-soft);
    color: var(--fg-dim);
    font-size: 0.85rem;
}
footer a { color: var(--fg-dim); }
footer a:hover { color: var(--accent); }

::selection {
    background: var(--accent);
    color: var(--bg);
}