/*
Theme Name: learnSEO Editorial
Theme URI: https://example.com/learnseo-editorial
Author: learnSEO
Description: Thème WordPress éditorial orienté expertise SEO, données et lecture longue.
Version: 1.1.0
Requires at least: 6.4
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: learnseo
Tags: blog, news, one-column, two-columns, custom-logo, custom-menu, featured-images, block-styles, wide-blocks, accessibility-ready
*/

:root {
  --ls-bg: #ffffff;
  --ls-surface: #f3f6fa;
  --ls-ink: #111827;
  --ls-muted: #64748b;
  --ls-blue: #175cd3;
  --ls-blue-dark: #1049aa;
  --ls-lime: #b7e000;
  --ls-lime-dark: #526b00;
  --ls-border: #d7dee8;
  --ls-white: #ffffff;
  --ls-radius: 10px;
  --ls-content: 760px;
  --ls-wide: 1180px;
  --ls-shadow: 0 18px 60px rgba(17, 24, 39, 0.08);
  --ls-font: "Inter", "Aptos", "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ls-bg);
  color: var(--ls-ink);
  font-family: var(--ls-font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--ls-blue); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--ls-blue-dark); }
button, input, textarea, select { font: inherit; }
button, .button, input[type="submit"] { cursor: pointer; }
:focus-visible { outline: 3px solid var(--ls-lime); outline-offset: 3px; }

.screen-reader-text {
  position: absolute !important;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.screen-reader-text:focus {
  clip: auto !important; width: auto; height: auto; margin: 0; padding: 12px 16px;
  background: var(--ls-white); color: var(--ls-ink); z-index: 100000;
}

.site-header {
  position: relative;
  z-index: 50;
  border-bottom: 1px solid var(--ls-border);
  background: rgba(255,255,255,.96);
}
.header-inner {
  width: min(calc(100% - 48px), 1360px);
  min-height: 72px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: auto minmax(220px, 420px) 1fr auto;
  align-items: center;
  gap: 28px;
}
.site-branding { display: flex; align-items: center; min-width: 128px; }
.custom-logo { max-height: 38px; width: auto; }
.site-title {
  color: var(--ls-ink); font-size: 25px; font-weight: 800; letter-spacing: -.05em;
  text-decoration: none;
}
.site-title span { color: var(--ls-blue); }
.header-search { position: relative; }
.header-search .search-field {
  width: 100%; height: 42px; border: 1px solid var(--ls-border); border-radius: 8px;
  background: var(--ls-surface); color: var(--ls-ink); padding: 0 42px 0 42px;
}
.header-search::before {
  content: "\2315"; position: absolute; left: 15px; top: 5px; color: var(--ls-muted); font-size: 22px;
}
.header-search .search-submit {
  position: absolute; right: 6px; top: 6px; width: 30px; height: 30px;
  border: 0; background: transparent; color: var(--ls-muted); font-size: 0;
}
.header-search .search-submit::after { content: "\2192"; font-size: 18px; }
.primary-nav { justify-self: end; }
.primary-nav ul { display: flex; align-items: center; gap: 26px; padding: 0; margin: 0; list-style: none; }
.primary-nav a { color: var(--ls-ink); font-size: 14px; font-weight: 650; text-decoration: none; }
.primary-nav a:hover, .primary-nav .current-menu-item > a { color: var(--ls-blue); }
.header-cta, .button, input[type="submit"] {
  display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 18px;
  border: 1px solid var(--ls-blue); border-radius: 7px; background: var(--ls-blue); color: var(--ls-white);
  font-size: 14px; font-weight: 750; text-decoration: none; transition: .2s ease;
}
.header-cta:hover, .button:hover, input[type="submit"]:hover { background: var(--ls-blue-dark); color: #fff; transform: translateY(-1px); }
.menu-toggle { display: none; border: 0; background: transparent; color: var(--ls-ink); font-weight: 750; }

.reading-progress {
  position: fixed; inset: 0 auto auto 0; z-index: 100; height: 3px; width: 0;
  background: var(--ls-blue); box-shadow: 0 0 0 1px rgba(23,92,211,.1);
}

.article-shell {
  width: min(calc(100% - 48px), 1360px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 180px minmax(0, 850px) 180px;
  justify-content: center;
  gap: 36px;
  padding: 54px 0 96px;
}
.article-toc {
  position: sticky; top: 28px; align-self: start; max-height: calc(100vh - 56px); overflow: auto;
  padding-right: 24px; border-right: 1px solid var(--ls-border);
}
.article-toc-mobile { display: none; }
.toc-title { margin: 0 0 16px; color: var(--ls-ink); font-size: 13px; font-weight: 800; }
.toc-list { list-style: none; padding: 0; margin: 0; }
.toc-list li { margin: 0 0 9px; }
.toc-list li[data-level="3"] { padding-left: 14px; }
.toc-list a { display: block; color: var(--ls-muted); font-size: 13px; line-height: 1.42; text-decoration: none; }
.toc-list a:hover, .toc-list a.is-active { color: var(--ls-blue); font-weight: 750; }
.toc-empty { color: var(--ls-muted); font-size: 13px; }

.article-main { min-width: 0; }
.article-kicker { margin: 0 0 14px; color: var(--ls-blue); font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; }
.breadcrumbs { margin: 0 0 16px; color: var(--ls-muted); font-size: 12px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li { display: inline-flex; align-items: center; gap: 7px; }
.breadcrumbs li:not(:last-child)::after { content: "/"; color: #a7b0bf; }
.breadcrumbs a { color: var(--ls-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--ls-blue); }
.breadcrumbs [aria-current="page"] { max-width: 36ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.article-title {
  margin: 0; max-width: 820px; color: var(--ls-ink); font-size: clamp(40px, 4.2vw, 68px);
  line-height: 1.04; letter-spacing: -.045em; font-weight: 820;
}
@media (min-width: 1181px) {
  .article-title { font-size: 54px; max-width: 900px; }
}
.article-deck { margin: 22px 0 0; max-width: 720px; color: var(--ls-muted); font-size: clamp(19px, 2vw, 24px); line-height: 1.45; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin: 28px 0 34px; color: var(--ls-muted); font-size: 13px; }
.author-chip { display: inline-flex; align-items: center; gap: 11px; color: var(--ls-ink); font-weight: 700; }
.author-chip img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.meta-divider { width: 1px; height: 34px; background: var(--ls-border); }
.featured-media { margin: 0 0 34px; overflow: hidden; border: 1px solid var(--ls-border); border-radius: var(--ls-radius); background: var(--ls-surface); }
.featured-media img { width: 100%; max-height: 500px; object-fit: cover; }
.featured-caption { padding: 10px 14px; color: var(--ls-muted); font-size: 12px; }

.article-content { color: var(--ls-ink); font-size: 17px; }
.article-content > * { max-width: var(--ls-content); margin-inline: 0 auto; }
.article-content > .alignwide { max-width: 980px; margin-left: 50%; transform: translateX(-50%); width: min(980px, calc(100vw - 48px)); }
.article-content > .alignfull { max-width: none; width: 100vw; margin-left: 50%; transform: translateX(-50%); }
.article-content p { margin-top: 0; margin-bottom: 1.4em; }
.article-content h2, .article-content h3, .article-content h4 { scroll-margin-top: 30px; color: var(--ls-ink); letter-spacing: -.025em; }
.article-content h2 { margin-top: 2.3em; margin-bottom: .75em; padding-top: .9em; border-top: 1px solid var(--ls-border); font-size: clamp(28px, 3vw, 38px); line-height: 1.17; }
.article-content h3 { margin-top: 1.9em; margin-bottom: .65em; font-size: 24px; line-height: 1.25; }
.article-content h4 { margin-top: 1.6em; margin-bottom: .5em; font-size: 19px; }
.article-content ul, .article-content ol { margin-top: 0; margin-bottom: 1.5em; padding-left: 1.3em; }
.article-content li { margin-bottom: .45em; }
.article-content li::marker { color: var(--ls-blue); font-weight: 800; }
.article-content strong { font-weight: 780; }
.article-content code { padding: .16em .36em; border-radius: 4px; background: var(--ls-surface); font-size: .9em; }
.article-content pre { overflow-x: auto; padding: 22px; border-left: 4px solid var(--ls-blue); background: var(--ls-ink); color: white; border-radius: 6px; }
.article-content blockquote, .wp-block-quote {
  margin: 2em 0; padding: 20px 24px; border: 1px solid var(--ls-lime-dark); border-left: 5px solid var(--ls-lime);
  border-radius: 6px; background: #fbffe9; font-size: 17px;
}
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content figure { margin-top: 2em; margin-bottom: 2em; }
.article-content figcaption { margin-top: 8px; color: var(--ls-muted); font-size: 12px; text-align: left; }
.article-content table { width: 100%; border-collapse: collapse; margin: 2em 0; font-size: 14px; }
.article-content .wp-block-table { max-width: 100%; overflow-x: auto; }
.article-content th, .article-content td { padding: 14px 16px; border: 1px solid var(--ls-border); text-align: left; vertical-align: top; }
.article-content th { background: var(--ls-surface); font-weight: 750; }
.article-content tr:nth-child(even) td { background: #fbfcfe; }
.wp-block-image img, .wp-block-gallery img { border-radius: var(--ls-radius); }
.wp-block-pullquote { padding: 28px; border: 0; border-left: 4px solid var(--ls-lime); background: var(--ls-surface); text-align: left; }
.wp-block-pullquote blockquote { margin: 0; padding: 0; border: 0; background: transparent; }
.wp-block-button__link { border-radius: 7px; background: var(--ls-blue); color: #fff; font-weight: 750; }

.evidence-panel {
  margin: 2.4em 0; padding: 24px; border: 1px solid var(--ls-border); border-radius: var(--ls-radius); background: var(--ls-surface);
}
.evidence-panel > :last-child { margin-bottom: 0; }
.proof-label { color: var(--ls-lime-dark); font-size: 12px; font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }
.expert-note {
  padding: 18px 20px; border-left: 3px solid var(--ls-lime); background: #fbffe9; color: var(--ls-ink); font-size: 15px;
}
.expert-note strong { display: block; color: var(--ls-lime-dark); }

.article-rail { position: sticky; top: 28px; align-self: start; color: var(--ls-muted); }
.rail-progress { margin-bottom: 120px; }
.rail-label { margin: 0 0 8px; font-size: 12px; font-weight: 700; }
.rail-value { display: block; margin-bottom: 12px; color: var(--ls-blue); font-size: 20px; font-weight: 850; }
.rail-track { position: relative; width: 2px; height: 92px; margin-left: 10px; background: var(--ls-border); }
.rail-track span { position: absolute; top: 0; left: 0; width: 2px; height: 0; background: var(--ls-blue); }
.rail-note { margin: 0 0 260px; padding-left: 16px; border-left: 2px solid var(--ls-lime); font-size: 14px; }
.rail-note strong { display: block; margin-bottom: 7px; color: var(--ls-lime-dark); font-size: 12px; }

.author-box { display: grid; grid-template-columns: auto 1fr; gap: 18px; margin-top: 56px; padding: 24px; border-radius: var(--ls-radius); background: var(--ls-surface); }
.author-box img { width: 72px; height: 72px; border-radius: 50%; }
.author-box h2 { margin: 0 0 5px; font-size: 18px; }
.author-box p { margin: 0; color: var(--ls-muted); font-size: 14px; }
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.article-tags a { padding: 5px 10px; border: 1px solid var(--ls-border); border-radius: 999px; color: var(--ls-muted); font-size: 12px; text-decoration: none; }
.article-tags a:hover { border-color: var(--ls-blue); color: var(--ls-blue); }
.related-posts { margin-top: 72px; padding-top: 34px; border-top: 1px solid var(--ls-border); }
.related-posts h2 { margin: 0 0 22px; font-size: 26px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.post-card { min-width: 0; }
.post-card-image { display: block; aspect-ratio: 16/10; overflow: hidden; border-radius: 8px; background: var(--ls-surface); }
.post-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .25s ease; }
.post-card:hover img { transform: scale(1.025); }
.post-card-kicker { margin: 13px 0 4px; color: var(--ls-blue); font-size: 11px; font-weight: 800; text-transform: uppercase; }
.post-card h2, .post-card h3 { margin: 0; font-size: 17px; line-height: 1.35; }
.post-card h2 a, .post-card h3 a { color: var(--ls-ink); text-decoration: none; }
.post-card-meta { margin-top: 8px; color: var(--ls-muted); font-size: 12px; }

.archive-shell, .page-shell {
  width: min(calc(100% - 48px), var(--ls-wide)); margin-inline: auto; padding: 72px 0 100px;
}
.archive-header { max-width: 760px; margin-bottom: 48px; }
.archive-kicker { color: var(--ls-blue); font-size: 13px; font-weight: 800; text-transform: uppercase; }
.archive-title { margin: 8px 0 12px; font-size: clamp(40px, 5vw, 64px); line-height: 1.06; letter-spacing: -.045em; }
.archive-description { color: var(--ls-muted); font-size: 19px; }
.archive-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 42px 24px; }
.pagination { margin-top: 56px; }
.nav-links { display: flex; gap: 8px; }
.page-numbers { display: inline-flex; min-width: 40px; height: 40px; align-items: center; justify-content: center; border: 1px solid var(--ls-border); border-radius: 6px; text-decoration: none; }
.page-numbers.current { border-color: var(--ls-blue); background: var(--ls-blue); color: white; }

.newsletter {
  margin-top: 72px; padding: 30px; border: 1px solid var(--ls-border); border-radius: var(--ls-radius); background: var(--ls-surface);
  display: grid; grid-template-columns: 1fr minmax(280px, 430px); gap: 28px; align-items: center;
}
.newsletter h2 { margin: 0 0 4px; font-size: 22px; }
.newsletter p { margin: 0; color: var(--ls-muted); font-size: 14px; }
.newsletter-form { display: flex; gap: 8px; }
.newsletter-form input[type="email"] { flex: 1; min-width: 0; height: 44px; border: 1px solid var(--ls-border); border-radius: 7px; padding: 0 13px; background: white; }

.comments-area { max-width: var(--ls-content); margin-top: 64px; padding-top: 30px; border-top: 1px solid var(--ls-border); }
.comment-list { padding: 0; list-style: none; }
.comment-body { margin-bottom: 28px; padding: 20px; background: var(--ls-surface); border-radius: 8px; }
.comment-form label { display: block; font-weight: 700; }
.comment-form input:not([type="submit"]), .comment-form textarea { width: 100%; border: 1px solid var(--ls-border); border-radius: 7px; padding: 10px 12px; }

.site-footer { border-top: 1px solid var(--ls-border); background: var(--ls-surface); }
.footer-inner { width: min(calc(100% - 48px), var(--ls-wide)); margin-inline: auto; padding: 38px 0; display: flex; justify-content: space-between; gap: 24px; color: var(--ls-muted); font-size: 13px; }
.footer-nav ul { display: flex; gap: 20px; margin: 0; padding: 0; list-style: none; }
.footer-nav a { color: var(--ls-muted); text-decoration: none; }
.empty-state { max-width: 620px; padding: 32px; border: 1px solid var(--ls-border); background: var(--ls-surface); border-radius: var(--ls-radius); }

@media (max-width: 1180px) {
  .header-inner { grid-template-columns: auto 1fr auto; }
  .header-search { display: none; }
  .article-shell { grid-template-columns: 170px minmax(0, 780px); }
  .article-rail { display: none; }
}
@media (max-width: 860px) {
  .header-inner { width: min(calc(100% - 32px), 100%); min-height: 66px; grid-template-columns: 1fr auto; gap: 16px; }
  .primary-nav, .header-cta { display: none; }
  .menu-toggle { display: inline-flex; }
  .site-header.is-open .primary-nav {
    display: block; position: absolute; inset: 66px 0 auto; width: 100%; justify-self: stretch; padding: 20px 24px 28px; border-bottom: 1px solid var(--ls-border); background: white; box-shadow: var(--ls-shadow);
  }
  .site-header.is-open .primary-nav ul { align-items: stretch; flex-direction: column; gap: 0; }
  .site-header.is-open .primary-nav a { display: block; padding: 12px 0; border-bottom: 1px solid var(--ls-border); }
  .article-shell { width: min(calc(100% - 32px), 760px); display: block; padding-top: 36px; }
  .article-toc-desktop { display: none; }
  .article-toc-mobile { display: block; position: relative; top: auto; max-height: none; margin: 28px 0; padding: 18px; border: 1px solid var(--ls-border); border-radius: 8px; background: var(--ls-surface); }
  .article-title { font-size: clamp(38px, 11vw, 58px); }
  .article-content > .alignwide, .article-content > .alignfull { width: 100%; margin-left: 0; transform: none; }
  .related-grid, .archive-grid { grid-template-columns: 1fr 1fr; }
  .newsletter { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .article-title { font-size: 39px; }
  .article-deck { font-size: 19px; }
  .article-meta { align-items: flex-start; flex-direction: column; gap: 10px; }
  .meta-divider, .meta-dot { display: none; }
  .article-content { font-size: 16px; }
  .article-content h2 { font-size: 29px; }
  .related-grid, .archive-grid { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .footer-inner { flex-direction: column; }
  .footer-nav ul { flex-wrap: wrap; }
}

@media print {
  .site-header, .site-footer, .article-toc, .article-rail, .reading-progress, .newsletter, .related-posts, .comments-area { display: none !important; }
  .article-shell { display: block; width: 100%; padding: 0; }
  .article-content { font-size: 11pt; }
  a { color: inherit; }
}