:root {
    color-scheme: dark;
    --bg: #0e0e0f;
    --fg: #e0e0e0;
    --accent: #4fc3f7;
    --card-bg: #1a1a1c;
    --border: #333;
    --muted: #999;
}

body {
    font-family: system-ui, sans-serif;
    background: var(--bg);
    color: var(--fg);
    margin: 0;
    line-height: 1.6;
}

header, main, footer {
    max-width: 880px;
    margin: 0 auto;
    padding: 16px;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid var(--border);
}

.lang-switch {
    display: inline-flex;
    gap: 8px;
}

.lang-switch button {
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--fg);
    padding: 6px 10px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s;
}

.lang-switch button[aria-pressed="true"] {
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 600;
}

h1, h2, h3 {
    color: var(--fg);
    margin-top: 0.6em;
    margin-bottom: 0.3em;
}

p {
    margin-top: 0;
    margin-bottom: 1em;
    color: var(--muted);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.projects {
    display: grid;
    gap: 16px;
}

.card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    background: var(--card-bg);
}

footer {
    color: var(--muted);
    font-size: 0.9rem;
    text-align: center;
    border-top: 1px solid var(--border);
    margin-top: 24px;
    padding-top: 16px;
}

[hidden] { display: none !important; }