/*
Theme Name: Marco SEO
Theme URI: https://marcocostanzo.com
Description: Lightweight, SEO-focused theme: semantic HTML, correct heading hierarchy, meta description, Open Graph, Twitter Card and JSON-LD structured data.
Author: Marco Costanzo
Version: 1.2.0
Requires at least: 6.0
Requires PHP: 7.4
License: GPL-2.0-or-later
Text Domain: marco-seo
*/

:root {
	--c-bg: #fffdf7;
	--c-text: #222222;
	--c-muted: #5c5c5c;
	--c-accent: #d9730d;
	--c-accent-soft: #fff1d6;
	--c-border: #f0e6d2;
	--w-content: 760px;
}

*,
*::before,
*::after {
	box-sizing: border-box;
}

html {
	-webkit-text-size-adjust: 100%;
}

body {
	margin: 0;
	background: var(--c-bg);
	color: var(--c-text);
	font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	background-image: linear-gradient(rgba(46, 139, 87, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(46, 139, 87, 0.035) 1px, transparent 1px);
	background-size: 24px 24px;
	font-size: 1.0625rem;
	line-height: 1.7;
}

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

a {
	color: var(--c-accent);
	text-decoration-thickness: 1px;
	text-underline-offset: 3px;
}

a:hover,
a:focus {
	color: var(--c-text);
}

h1,
h2,
h3,
h4 {
	line-height: 1.25;
	color: var(--c-text);
	margin: 1.6em 0 0.5em;
}

h1 {
	font-size: 2rem;
	margin-top: 0.4em;
}

h2 {
	font-size: 1.5rem;
}

h3 {
	font-size: 1.2rem;
}

p {
	margin: 0 0 1em;
}

.wrap {
	max-width: var(--w-content);
	margin: 0 auto;
	padding: 0 1.25rem;
}

.site-header {
	background: var(--c-accent-soft);
	border-bottom: 1px solid var(--c-border);
	padding: 1rem 0;
}

.site-header .wrap {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
}

.site-title {
	margin: 0;
	font-size: 1.15rem;
	font-weight: 700;
}

.site-title a {
	color: var(--c-text);
	text-decoration: none;
}

.primary-nav ul {
	list-style: none;
	display: flex;
	flex-wrap: wrap;
	gap: 0.25rem 1rem;
	margin: 0;
	padding: 0;
}

.primary-nav a {
	color: var(--c-text);
	text-decoration: none;
	font-weight: 600;
}

main {
	padding: 2rem 0 3rem;
}

.entry-meta {
	color: var(--c-muted);
	font-size: 0.92rem;
	margin: 0 0 1.25rem;
}

.entry-image {
	border-radius: 10px;
	margin: 0 0 1.5rem;
}

.entry-content {
	overflow-wrap: break-word;
}

.entry-content img,
.entry-content figure {
	margin-bottom: 1.25rem;
}

.entry-content blockquote {
	border-left: 4px solid var(--c-accent);
	margin: 1.5rem 0;
	padding: 0.25rem 0 0.25rem 1rem;
	color: var(--c-muted);
}

.site-footer {
	border-top: 1px solid var(--c-border);
	padding: 1.5rem 0;
	color: var(--c-muted);
	font-size: 0.92rem;
}

.site-footer p {
	margin: 0;
}

.skip-link:focus {
	background: #fff;
	clip: auto;
	clip-path: none;
	height: auto;
	left: 1rem;
	padding: 0.5rem 0.75rem;
	top: 1rem;
	width: auto;
	z-index: 100000;
}

.screen-reader-text {
	border: 0;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	height: 1px;
	margin: -1px;
	overflow: hidden;
	padding: 0;
	position: absolute;
	width: 1px;
	word-wrap: normal;
}

.screen-reader-text:focus {
	background: #fff;
	clip: auto;
	clip-path: none;
	height: auto;
	left: 5px;
	padding: 0.5rem;
	top: 5px;
	width: auto;
	z-index: 100000;
}

.page-numbers,
.nav-links a {
	color: var(--c-accent);
}

/* Comments */
.comments-area {
	margin-top: 3rem;
	padding-top: 2rem;
	border-top: 1px solid var(--c-border);
}

.comments-title {
	font-size: 1.3rem;
}

.comment-list {
	list-style: none;
	margin: 0 0 2rem;
	padding: 0;
}

.comment-list .children {
	list-style: none;
	margin: 0;
	padding-left: 1.5rem;
}

.comment-body {
	margin-bottom: 1.25rem;
	padding-bottom: 1.25rem;
	border-bottom: 1px solid var(--c-border);
}

.comment-meta {
	color: var(--c-muted);
	font-size: 0.9rem;
}

.comment-form label {
	display: block;
	margin-top: 0.75rem;
	font-weight: 600;
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
	width: 100%;
	max-width: 100%;
	margin-top: 0.25rem;
	padding: 0.7rem;
	border: 1px solid var(--c-border);
	border-radius: 8px;
	font: inherit;
	background: #fff;
}

.comment-form .form-submit input[type="submit"] {
	min-height: 44px;
	margin-top: 1rem;
	padding: 0.6rem 1.4rem;
	border: 0;
	border-radius: 999px;
	background: var(--c-accent);
	color: #fff;
	font: inherit;
	font-weight: 700;
	cursor: pointer;
}

.comment-form .form-submit input[type="submit"]:hover,
.comment-form .form-submit input[type="submit"]:focus-visible {
	background: var(--c-text);
}

/* ---------- Nerd style, lightweight: no images, no web fonts, CSS only ---------- */
:root {
	--c-term: #2e8b57;
	--c-term-bg: #f3f8ef;
	--f-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

.site-header {
	background: var(--c-term-bg);
	border-bottom: 2px solid var(--c-term);
	position: relative;
}

.site-title a {
	font-family: var(--f-mono);
	font-size: 1.05rem;
}

.site-title a::before {
	content: none;
}

.site-title a::after {
	content: "_";
	color: var(--c-accent);
	animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
	50% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
	.site-title a::after { animation: none; }
}

main h1::before,
main h2::before {
	content: "> ";
	color: var(--c-term);
	font-family: var(--f-mono);
}

.entry-title,
.entry-content h2,
.entry-content h3 {
	font-family: var(--f-mono);
	letter-spacing: -0.01em;
}

.entry-content h3::before {
	content: "# ";
	color: var(--c-accent);
}

.entry-content code,
.comment-body code {
	font-family: var(--f-mono);
	font-size: 0.92em;
	background: var(--c-term-bg);
	border: 1px solid var(--c-border);
	border-radius: 4px;
	padding: 0.05em 0.35em;
}

.entry-content pre {
	font-family: var(--f-mono);
	font-size: 0.9rem;
	background: var(--c-term-bg);
	border-left: 4px solid var(--c-term);
	border-radius: 6px;
	padding: 0.9rem 1rem;
	overflow-x: auto;
}

.entry-content ul > li::marker {
	color: var(--c-accent);
}

.entry-meta {
	font-family: var(--f-mono);
	font-size: 0.85rem;
}

/* DocBook-style chapter layout (used by the Ethical Informatics pages) */
.docbook-chapter {
	font-size: 1rem;
}

.docbook-breadcrumb {
	font-family: var(--f-mono);
	font-size: 0.85rem;
	color: var(--c-muted);
}

.docbook-chapter-title span {
	display: block;
	font-family: var(--f-mono);
	font-size: 0.85rem;
	color: var(--c-term);
	font-weight: 400;
}

.docbook-pager {
	display: flex;
	flex-wrap: wrap;
	justify-content: space-between;
	gap: 0.5rem;
	margin-top: 2.5rem;
	padding-top: 1rem;
	border-top: 2px dashed var(--c-border);
	font-family: var(--f-mono);
	font-size: 0.9rem;
}

.docbook-glossary dt {
	font-family: var(--f-mono);
	font-weight: 700;
	margin-top: 1rem;
}

.docbook-glossary dd {
	margin: 0.2rem 0 0 1rem;
}

.mms-featured > a {
	color: var(--c-accent);
}

/* Twin-swan site-map button before the site name; replace redundant text button. */
.site-header .mms-top { display: none !important; }
.mms-swan-trigger { display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; width: 46px; height: 46px; padding: 3px; border: 1px solid #d8c394; border-radius: 9px; background: #fff; cursor: pointer; }
.mms-swan-trigger img { width: 38px; height: 38px; object-fit: contain; border-radius: 5px; image-rendering: pixelated; }
.mms-swan-trigger:hover { border-color: #9c7b28; background: #fff8e9; }
.mms-swan-trigger:focus-visible { outline: 3px solid #9c7b28; outline-offset: 3px; }
.site-header .wrap { justify-content: flex-start; }
.site-header .primary-nav { margin-left: auto; }

/* Accessible, collapsible site-map outline */
.mms .mms-outline,
.mms .mms-outline ul { list-style: none; }
.mms .mms-outline { margin: .5rem 0; padding-left: 0; }
.mms .mms-outline .mms-list { margin: .2rem 0 .55rem; padding-left: 1.45rem; border-left: 1px solid #e4d5b5; }
.mms .mms-outline li { position: relative; margin: .1rem 0; }
.mms .mms-outline [hidden] { display: none !important; }
.mms .mms-branch-toggle { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 38px; padding: 0; margin-right: .2rem; border: 0; background: transparent; color: #7f5c0b; font: 700 1.15rem/1 system-ui, sans-serif; cursor: pointer; vertical-align: middle; }
.mms .mms-it-label { width: 100%; text-align: left; min-height: 44px; padding: .6rem .75rem; background: #fff7e2; border: 1px solid #d5b46d; border-radius: 8px; font: 700 1rem/1.35 system-ui,sans-serif; color: #30271b; cursor: pointer; }
.mms .mms-it-group { margin-bottom: 1rem; }
.mms .mms-outline a { color: #2b2a25; text-decoration: none; border-radius: 4px; }
.mms .mms-outline a:hover, .mms .mms-outline a:focus-visible { text-decoration: underline; color: #805c0b; }
.mms .mms-branch-toggle:focus-visible, .mms .mms-it-label:focus-visible { outline: 3px solid #aa7f22; outline-offset: 2px; }
@media (max-width: 600px) { .mms .mms-outline .mms-list { padding-left: .85rem; } }


@media (max-width: 600px) {
	body { font-size: 1rem; background-image: none; }
	.wrap { padding: 0 1rem; }
}