/* Shared look for the plain text pages (About, Contact, Privacy). Same palette as the home page. */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #475569;
    --border-color: #e2e8f0;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.7;
}

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

.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    padding: 3rem 1rem;
    text-align: center;
}

.page-header h1 {
    font-size: 2.25rem;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.page-header p {
    opacity: 0.9;
}

.page-body {
    max-width: 760px;
    margin: 2.5rem auto;
    padding: 2rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.page-body h2 {
    font-size: 1.35rem;
    margin: 2rem 0 0.75rem;
}

.page-body h2:first-child {
    margin-top: 0;
}

.page-body p,
.page-body li {
    color: var(--text-muted);
    margin-bottom: 0.9rem;
}

.page-body ul {
    padding-left: 1.4rem;
}

.contact-email {
    display: inline-block;
    font-size: 1.25rem;
    font-weight: 600;
    padding: 0.75rem 1.25rem;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    text-decoration: none;
    margin: 0.5rem 0 1.25rem;
}

.contact-email:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* ---- Articles ---- */
.article-meta {
    font-size: 0.9rem;
    opacity: 0.85;
    margin-top: 0.75rem;
}

.page-body h3 {
    font-size: 1.1rem;
    margin: 1.5rem 0 0.5rem;
}

.page-body ol {
    padding-left: 1.4rem;
}

.toc {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.toc strong {
    display: block;
    margin-bottom: 0.4rem;
}

.toc li {
    margin-bottom: 0.25rem;
}

.callout {
    background-color: #eff6ff;
    border-left: 4px solid var(--primary-color);
    border-radius: 6px;
    padding: 1rem 1.25rem;
    margin: 1.25rem 0;
}

.callout.warn {
    background-color: #fff7ed;
    border-left-color: #ea580c;
}

.callout p:last-child,
.callout ul:last-child {
    margin-bottom: 0;
}

.table-wrap {
    overflow-x: auto;
    margin: 1rem 0 1.5rem;
}

.page-body table {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.95rem;
}

.page-body th,
.page-body td {
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    text-align: left;
    vertical-align: top;
}

.page-body th {
    background-color: #f1f5f9;
}

.page-body td {
    color: var(--text-muted);
}

@media (max-width: 600px) {
    .page-header h1 {
        font-size: 1.75rem;
    }

    .page-body {
        margin: 1rem;
        padding: 1.25rem;
    }

    .page-body table {
        font-size: 0.85rem;
    }

    .page-body th,
    .page-body td {
        padding: 0.4rem 0.5rem;
    }
}