/* Empreinte — styles blog. Aligné sur src/style.css (variables + Onest).
   Fichier hand-écrit : pas de Tailwind, pas de JS, pages statiques pures. */

@font-face {
  font-family: "Onest Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/blog/fonts/onest-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Onest Variable";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url("/blog/fonts/onest-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  color-scheme: light;
  --bg: #fafaf9;
  --surface: #ffffff;
  --fg: #0a0a0a;
  --fg-2: #525252;
  --fg-3: #737373;
  --border: #e7e5e4;
  --border-strong: #171717;
}

:root.dark {
  color-scheme: dark;
  --bg: #0a0a0a;
  --surface: #141414;
  --fg: #fafafa;
  --fg-2: #a3a3a3;
  --fg-3: #8a8a8a;
  --border: #262626;
  --border-strong: #fafafa;
}

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

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Onest Variable", "Onest", ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-feature-settings: "ss01", "cv11", "tnum";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

@media (max-width: 640px) {
  input,
  select,
  textarea {
    font-size: 16px;
  }
}

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

a {
  color: var(--fg);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  text-decoration-color: var(--fg);
}

/* ─── HEADER ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--fg);
}

.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  display: grid;
  place-items: center;
  border-radius: 0.5rem;
  background: var(--fg);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.theme-toggle,
.nav-toggle {
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  transition: border-color 0.15s;
  padding: 0;
}

.theme-toggle:hover,
.nav-toggle:hover {
  border-color: var(--border-strong);
}

.theme-toggle svg,
.nav-toggle svg {
  width: 1rem;
  height: 1rem;
}

:root:not(.dark) .theme-toggle .icon-sun { display: none; }
:root.dark .theme-toggle .icon-moon { display: none; }

.nav-toggle {
  display: none;
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: grid;
  }
}

.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-burger { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.mobile-nav {
  display: none;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 0.5rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 12px;
  color: var(--fg);
  text-decoration: none;
  transition: background 0.15s;
}

.mobile-nav-link:hover {
  background: var(--surface);
}

.mobile-nav-link svg {
  width: 1.125rem;
  height: 1.125rem;
  color: var(--fg-2);
}

.mobile-nav-link-body {
  flex: 1 1 auto;
  min-width: 0;
}

.mobile-nav-link-label {
  display: block;
  font-weight: 500;
  font-size: 0.95rem;
}

.mobile-nav-link-sub {
  display: block;
  font-size: 0.75rem;
  color: var(--fg-3);
}

.mobile-nav-link-arrow {
  width: 1rem !important;
  height: 1rem !important;
  color: var(--fg-3);
  transition: transform 0.15s;
}

.mobile-nav-link:hover .mobile-nav-link-arrow {
  transform: translateX(2px);
}

.nav-link {
  color: var(--fg-2);
  text-decoration: none;
  padding: 0.5rem 0;
  transition: color 0.15s;
  position: relative;
}

.nav-link:hover {
  color: var(--fg);
}

.nav-link--active {
  color: var(--fg);
}

.nav-link--active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.25rem;
  height: 1px;
  background: var(--fg);
}

@media (max-width: 640px) {
  .nav-links {
    gap: 1rem;
    font-size: 0.85rem;
  }
}

/* ─── BLOG INDEX ─── */
.blog-index {
  max-width: 64rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

.blog-index-hero {
  max-width: 40rem;
  margin: 0 auto 3rem;
  text-align: center;
}

.blog-index-hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin: 0 0 1rem;
}

.blog-index-hero p {
  color: var(--fg-2);
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0;
}

.blog-list {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
}

.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.15s, transform 0.15s;
}

.blog-card:hover {
  border-color: var(--border-strong);
}

.blog-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.blog-card-cover {
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.blog-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

.blog-card-title {
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

.blog-card-desc {
  color: var(--fg-2);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0 0 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-cta {
  color: var(--fg);
  font-size: 0.92rem;
  font-weight: 500;
}

/* ─── ARTICLE ─── */
.article {
  max-width: 56rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.article-inner {
  display: block;
}

.article-kicker {
  font-size: 0.85rem;
  color: var(--fg-3);
  margin: 0 0 1.25rem;
}

.article-kicker a {
  color: var(--fg-3);
  text-decoration: none;
}

.article-kicker a:hover {
  color: var(--fg);
}

.article-h1 {
  font-size: clamp(1.85rem, 4.5vw, 2.85rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.08;
  margin: 0 0 1rem;
}

.article-date {
  color: var(--fg-3);
  font-size: 0.88rem;
  margin: 0 0 2rem;
}

.article-cover {
  margin: 0 0 2.5rem;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.article-cover img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--fg);
}

.article-content p {
  margin: 0 0 1.2rem;
}

.article-content h2 {
  font-size: 1.55rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.25;
  margin: 3rem 0 1rem;
  scroll-margin-top: 5rem;
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin: 2.2rem 0 0.8rem;
  scroll-margin-top: 5rem;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.25rem;
  padding-left: 1.4rem;
}

.article-content li {
  margin: 0 0 0.4rem;
}

.article-content li::marker {
  color: var(--fg-3);
}

.article-content strong {
  font-weight: 600;
}

.article-content a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--fg) 35%, transparent);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.15s;
}

.article-content a:hover {
  text-decoration-color: var(--fg);
}

.article-content .table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 0 1.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.article-content .table-wrap table {
  margin: 0;
  border-radius: 0;
  border: none;
  min-width: 32rem;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 0.6rem 0.85rem;
  text-align: left;
}

.article-content th {
  background: var(--surface);
  font-weight: 500;
}

.article-content blockquote {
  border-left: 2px solid var(--fg);
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: var(--fg-2);
  font-style: italic;
}

/* TOC (table of contents générée par Wisewand en <ol> juste sous l'intro) */
.article-content > ol:first-of-type {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem 1rem 2.5rem;
  margin: 0 0 2rem;
  font-size: 0.95rem;
}

.article-content > ol:first-of-type li {
  margin: 0.3rem 0;
}

/* ─── CTA MILIEU ─── */
.cta-inline {
  margin: 2.5rem 0;
  padding: 1.75rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

.cta-inline-pitch {
  margin: 0;
  color: var(--fg-2);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 32rem;
}

.cta-inline-btn,
.article-content .cta-inline-btn {
  display: inline-flex;
  align-items: center;
  background: var(--fg);
  color: var(--bg);
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  font-weight: 500;
  font-size: 0.92rem;
  text-decoration: none;
  transition: opacity 0.15s;
}

.cta-inline-btn:hover,
.article-content .cta-inline-btn:hover {
  opacity: 0.9;
  text-decoration: none;
}

/* ─── CTA FIN ─── */
.cta-end {
  margin: 4rem 0 3rem;
}

.cta-end-inner {
  background: var(--fg);
  color: var(--bg);
  border-radius: 18px;
  padding: 2.5rem 2rem;
  text-align: center;
}

.cta-end-title {
  font-size: 1.55rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 0.75rem;
}

.cta-end-pitch {
  color: color-mix(in srgb, var(--bg) 75%, var(--fg));
  font-size: 1rem;
  line-height: 1.55;
  max-width: 32rem;
  margin: 0 auto 1.5rem;
}

.cta-end-btn {
  display: inline-flex;
  align-items: center;
  background: var(--bg);
  color: var(--fg);
  padding: 0.85rem 1.5rem;
  border-radius: 10px;
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.12s;
}

.cta-end-btn:hover {
  transform: translateY(-1px);
}

.cta-end-meta {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  color: color-mix(in srgb, var(--bg) 55%, var(--fg));
}

/* ─── FAQ ─── */
.faq {
  margin: 3rem 0 2rem;
}

.faq h2 {
  font-size: 1.55rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 1.5rem;
}

.faq details {
  border-top: 1px solid var(--border);
  padding: 1rem 0;
}

.faq details:last-child {
  border-bottom: 1px solid var(--border);
}

.faq summary {
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  font-weight: 300;
  font-size: 1.4rem;
  color: var(--fg-3);
}

.faq details[open] summary::after {
  content: "−";
}

.faq details[open] summary {
  margin-bottom: 0.75rem;
}

.faq p {
  color: var(--fg-2);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0.5rem 0 0;
}

/* ─── À LIRE AUSSI ─── */
.related {
  margin: 3rem 0 1rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}

.related-title {
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 1.25rem;
}

.related-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.related-card {
  display: block;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s;
}

.related-card:hover {
  border-color: var(--border-strong);
}

.related-kicker {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--fg-3);
  margin-bottom: 0.25rem;
}

.related-h {
  display: block;
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1.3;
}

/* ─── FOOTER ─── */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding: 2rem 0;
}

.footer-wrap {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.footer-brand {
  margin: 0;
  color: var(--fg-3);
}

.footer-nav {
  display: flex;
  gap: 1.25rem;
}

.footer-nav a {
  color: var(--fg-2);
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--fg);
}