:root {
  --color-primary: #1A1A2E;
  --color-primary-soft: #2A2A44;
  --color-accent: #E63946;
  --color-accent-dark: #C42836;
  --color-accent-warm: #F4A261;
  --color-bg: #FAFAF8;
  --color-bg-alt: #F0EFE9;
  --color-bg-card: #FFFFFF;
  --color-text: #1C1C1C;
  --color-text-muted: #6B6B6B;
  --color-text-soft: #4A4A4A;
  --color-border: #E0DDD6;
  --color-border-strong: #C8C4BA;
  --color-ennevolte: #1d1d1b;
  --color-success: #2A9D8F;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  --max-width-content: 720px;
  --max-width-wide: 1100px;
  --max-width-full: 1400px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(26, 26, 46, 0.04), 0 1px 3px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 4px 12px rgba(26, 26, 46, 0.06), 0 2px 4px rgba(26, 26, 46, 0.04);
  --shadow-lg: 0 16px 40px rgba(26, 26, 46, 0.08), 0 4px 12px rgba(26, 26, 46, 0.04);

  --transition-fast: 150ms ease-out;
  --transition-base: 250ms ease-out;
  --transition-slow: 400ms ease-out;

  --header-height: 72px;

  --bp-sm: 480px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-accent-dark); text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: 2px; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
button:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

.container {
  width: 100%;
  max-width: var(--max-width-full);
  margin: 0 auto;
  padding-inline: var(--space-md);
}
@media (max-width: 768px) {
  .container { padding-inline: var(--space-sm); }
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-sm) var(--space-md);
  z-index: 1000;
  text-decoration: none;
}
.skip-link:focus { top: 0; }

.site-main { min-height: 60vh; padding-block: 0; }

.content-root { width: 100%; }

.page-loading {
  display: flex; align-items: center; justify-content: center;
  min-height: 50vh; color: var(--color-text-muted);
  font-family: var(--font-mono); font-size: var(--text-sm);
}
.page-error {
  max-width: var(--max-width-content); margin: var(--space-xl) auto;
  padding: var(--space-md); text-align: center;
}

.noscript-fallback {
  max-width: var(--max-width-content);
  margin: var(--space-xl) auto;
  padding: var(--space-md);
}
.noscript-fallback h1 { margin-bottom: var(--space-md); }
.noscript-fallback p { margin-block: var(--space-sm); }
.noscript-fallback ul { padding-left: 1.5em; margin-block: var(--space-md); }
.noscript-fallback li { margin-block: 0.4em; }

/* Article layout */
.article {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-md);
}
@media (max-width: 768px) {
  .article { padding: var(--space-sm); gap: var(--space-md); }
}

.article-hero {
  padding-block: var(--space-lg) var(--space-md);
}
.article-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}
.article-hero .breadcrumb a { color: var(--color-text-muted); }
.article-hero .breadcrumb a:hover { color: var(--color-accent); }
.article-hero .breadcrumb-sep { margin: 0 0.5em; opacity: 0.5; }

.article-hero h1 {
  font-size: clamp(2rem, 4vw + 1rem, var(--text-5xl));
  line-height: var(--leading-tight);
  margin: 0 0 var(--space-md);
  max-width: 18ch;
}
.article-hero .chapeau {
  font-size: var(--text-xl);
  line-height: var(--leading-body);
  color: var(--color-text-soft);
  max-width: 50ch;
  margin: 0 0 var(--space-md);
  font-weight: 400;
}
.article-meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: flex; gap: var(--space-md); flex-wrap: wrap;
}

.article-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}
@media (min-width: 1024px) {
  .article-body {
    grid-template-columns: 220px minmax(0, var(--max-width-content));
    gap: var(--space-lg);
    align-items: start;
    justify-content: center;
  }
  .article-body--no-toc {
    grid-template-columns: minmax(0, var(--max-width-content));
  }
}

.toc {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
}
.toc-title {
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-sm);
  font-weight: 500;
}
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li {
  counter-increment: toc;
  padding-block: 6px;
  border-top: 1px solid var(--color-border);
  position: relative;
  padding-left: 28px;
}
.toc li::before {
  content: counter(toc, decimal-leading-zero);
  position: absolute; left: 0; top: 6px;
  color: var(--color-text-muted);
  font-size: 10px;
}
.toc a {
  color: var(--color-text);
  text-decoration: none;
  display: block;
  line-height: 1.4;
}
.toc a:hover { color: var(--color-accent); }
.toc a.active { color: var(--color-accent); font-weight: 600; }
@media (min-width: 1024px) {
  .toc {
    position: sticky;
    top: calc(var(--header-height) + var(--space-md));
    max-height: calc(100vh - var(--header-height) - var(--space-md));
    overflow-y: auto;
  }
}

.article-content {
  max-width: var(--max-width-content);
  width: 100%;
}
.article-content > * + * { margin-top: var(--space-md); }
.article-content h2 {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--header-height) + var(--space-md));
}
.article-content h2:first-of-type { border-top: none; padding-top: 0; }
.article-content h3 {
  margin-top: var(--space-md);
  scroll-margin-top: calc(var(--header-height) + var(--space-md));
}
.article-content ul, .article-content ol {
  padding-left: 1.5em;
}
.article-content li { margin-block: 0.4em; }
.article-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-md);
  margin-inline: 0;
  font-style: italic;
  color: var(--color-text-soft);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  margin-block: var(--space-md);
}
.article-content th, .article-content td {
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}
.article-content th {
  background: var(--color-bg-alt);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.article-content code {
  font-family: var(--font-mono);
  background: var(--color-bg-alt);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.9em;
}
.article-content hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin-block: var(--space-lg);
}

/* Sections (background bands inside content) */
.section-band {
  background: var(--color-bg-alt);
  padding-block: var(--space-lg);
  margin-block: var(--space-lg);
  border-radius: var(--radius-lg);
  padding-inline: var(--space-md);
}

/* Utility */
.text-muted { color: var(--color-text-muted); }
.mono { font-family: var(--font-mono); }
.center { text-align: center; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}