/* ============================================================
   Centurion Docs — Black & White, Heavy.
   Pure monochrome. Heavy borders. Zero pastel. Zero mercy.
   ============================================================ */

:root {
    --black: #000000;
    --near-black: #0a0a0a;
    --white: #ffffff;
    --off-white: #e8e8e8;
    --gray: #8a8a8a;
    --line: 3px;
    --pad: 1.6rem;
    --mono: "Cascadia Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--black);
    color: var(--white);
    font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    font-weight: 400;
}

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

p { margin: 0 0 1rem; }

/* ---------- Masthead: the heavy top block ---------- */

.masthead {
    background: var(--black);
    border-bottom: 4px solid var(--white);
}

.masthead-inner {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    max-width: 1080px;
    margin: 0 auto;
    padding: 2.2rem 1.6rem;
}

.masthead-icon {
    width: 96px;
    height: 96px;
    border: 4px solid var(--white);
    border-radius: 50%;
    background: var(--white);
    flex: none;
}

.masthead-title {
    margin: 0;
    font-size: 4.2rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    line-height: 1;
    text-transform: uppercase;
}

.masthead-tagline {
    margin: 0.5rem 0 0;
    font-family: var(--mono);
    font-size: 0.95rem;
    letter-spacing: 0.28em;
    color: var(--gray);
    text-transform: uppercase;
}

/* ---------- Navbar: heavy mono strip ---------- */

.navbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    border-bottom: 4px solid var(--white);
    background: var(--near-black);
    padding: 0;
}

.navbar a {
    font-family: var(--mono);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-decoration: none;
    text-transform: uppercase;
    color: var(--white);
    padding: 0.85rem 1.5rem;
    border-right: 2px solid var(--white);
    transition: background 0.12s, color 0.12s;
}

.navbar a:hover {
    background: var(--white);
    color: var(--black);
}

/* ---------- Content ---------- */

.content {
    max-width: 1080px;
    margin: 0 auto;
    padding: 2.4rem 1.6rem 4rem;
}

.content h1 {
    font-size: 2.6rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border-bottom: 4px solid var(--white);
    padding-bottom: 0.5rem;
    margin: 2.4rem 0 1.4rem;
}

.content h2 {
    font-size: 1.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    border-left: 6px solid var(--white);
    padding-left: 0.9rem;
    margin: 2.6rem 0 1rem;
}

.content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    margin: 1.8rem 0 0.8rem;
}

.content blockquote {
    margin: 1.4rem 0;
    padding: 0.9rem 1.2rem;
    border: var(--line) solid var(--white);
    background: var(--near-black);
    font-size: 1.02rem;
}

.content blockquote p { margin: 0; }

/* ---------- Heavy tables ---------- */

.content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4rem 0 2rem;
    font-size: 0.95rem;
}

.content th {
    background: var(--white);
    color: var(--black);
    font-family: var(--mono);
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.7rem 0.9rem;
    text-align: left;
    border: 2px solid var(--white);
}

.content td {
    padding: 0.6rem 0.9rem;
    border: 2px solid var(--white);
    vertical-align: top;
}

.content tr:nth-child(even) td { background: var(--near-black); }

/* ---------- Code: monochrome heavy ---------- */

.content code {
    font-family: var(--mono);
    font-size: 0.9em;
    background: var(--near-black);
    border: 1px solid var(--gray);
    padding: 0.1em 0.35em;
    color: var(--white);
}

.content pre {
    background: var(--near-black);
    border: var(--line) solid var(--white);
    padding: 1.1rem 1.3rem;
    overflow-x: auto;
    margin: 1.4rem 0 2rem;
}

.content pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.88rem;
    line-height: 1.55;
}

/* ---------- Lists & hr ---------- */

.content ul, .content ol { padding-left: 1.5rem; }

.content li { margin: 0.35rem 0; }

.content hr {
    border: none;
    border-top: 4px solid var(--white);
    margin: 2.6rem 0;
}

.content img { max-width: 100%; border: 2px solid var(--white); }

/* ---------- Footer ---------- */

.footer {
    border-top: 4px solid var(--white);
    background: var(--near-black);
    padding: 1.4rem 1.6rem;
    text-align: center;
}

.footer p {
    margin: 0;
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    color: var(--gray);
}

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
    .masthead-title { font-size: 2.6rem; }
    .masthead-icon { width: 64px; height: 64px; }
    .content h1 { font-size: 1.9rem; }
    .navbar a { padding: 0.7rem 1rem; }
}