:root {
    --bg: #111313;
    --panel: #191f1d;
    --text: #f1f3ee;
    --muted: #b3bab4;
    --border: #33413c;
    --accent: #8fc7b5;
    --accent-strong: #f2c572;
    --code-bg: #0c0f10;
}

body {
    max-width: 920px;
    margin: 0 auto;
    padding: 28px;
    background: var(--bg);
    color: var(--text);
    font-family: "Segoe UI", Inter, system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
    line-height: 1.75;
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
    padding-bottom: 16px;
}

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

nav a {
    border-radius: 6px;
    padding: 6px 10px;
    text-decoration: none;
}

nav a.active {
    background: var(--accent);
    color: #07110f;
}

h1,
h2,
h3 {
    color: var(--text);
    font-family: Georgia, Cambria, "Times New Roman", serif;
    line-height: 1.25;
}

h1 {
    margin-top: 0;
    font-size: 2.25rem;
}

h2 {
    margin-top: 34px;
}

h3 {
    margin-top: 28px;
}

p,
li {
    color: var(--muted);
}

article {
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}

article h2 {
    margin: 0 0 4px;
    font-family: "Segoe UI", Inter, system-ui, sans-serif;
    font-size: 1.2rem;
}

.page-title {
    text-align: center;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

.about-page {
    max-width: 720px;
    margin: 0 auto;
}

.profile-photo {
    display: block;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 24px;
}

.tagline {
    color: var(--accent-strong);
    font-weight: 600;
    text-align: center;
}

.ebook-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.ebook-card {
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--panel);
    padding: 18px;
}

.ebook-card h2 {
    margin-top: 0;
    font-size: 1.1rem;
}

.ebook-card p {
    margin-bottom: 8px;
}

.file-meta {
    color: var(--accent-strong);
    font-size: 0.9rem;
}

blockquote {
    border-left: 4px solid var(--accent-strong);
    margin: 24px 0;
    padding: 8px 0 8px 16px;
    color: var(--muted);
}

pre {
    overflow-x: auto;
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px;
}

code {
    background: var(--code-bg);
    color: #d7efe7;
    border-radius: 4px;
    padding: 2px 4px;
}

img {
    max-width: 100%;
    height: auto;
}

@media (max-width: 640px) {
    body {
        padding: 18px;
    }

    nav {
        gap: 8px;
    }
}