/* ==========================================================================
   Charte « Calme » (commune à mes projets)
   Clair par défaut, sombre via [data-theme="dark"] ou préférence système.
   ========================================================================== */
@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("/fonts/inter-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: italic; font-weight: 100 900; font-display: swap; src: url("/fonts/inter-latin-wght-italic.woff2") format("woff2"); }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-weight: 100 800; font-display: swap; src: url("/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2"); }

:root {
  --bg-primary: #f7f6f2;
  --bg-secondary: #efede7;
  --bg-card: #ffffff;
  --border: #e4e1d8;
  --border-strong: #d4d0c4;
  --white: #3d4152;          /* texte courant */
  --white-bright: #1d2133;   /* titres / texte fort */
  --gray: #646a7c;
  --gray-soft: #8d92a2;
  --accent: #5a4bd1;
  --accent-strong: #4a3cb8;
  --accent-soft: #eeebfc;
  --focus-ring: rgba(90, 75, 209, .18);
  --selection-bg: #ddd8fa;

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --radius: 14px;
  --radius-sm: 9px;
  color-scheme: light;

  /* Alias internes du blog */
  --bg: var(--bg-primary);
  --fg: var(--white);
  --muted: var(--gray);
  --line: var(--border);
  --code-bg: var(--bg-secondary);
  --font: var(--font-sans);
  --mono: var(--font-mono);
  --measure: 44rem;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-primary: #14151d; --bg-secondary: #191a24; --bg-card: #1e202c;
    --border: #2a2c3a; --border-strong: #383b4d;
    --white: #c5c8d4; --white-bright: #eceef4; --gray: #8e93a6; --gray-soft: #6c7184;
    --accent: #7669e0; --accent-strong: #8b7fe8; --accent-soft: rgba(118, 105, 224, .16);
    --focus-ring: rgba(118, 105, 224, .28); --selection-bg: rgba(118, 105, 224, .38);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg-primary: #14151d; --bg-secondary: #191a24; --bg-card: #1e202c;
  --border: #2a2c3a; --border-strong: #383b4d;
  --white: #c5c8d4; --white-bright: #eceef4; --gray: #8e93a6; --gray-soft: #6c7184;
  --accent: #7669e0; --accent-strong: #8b7fe8; --accent-soft: rgba(118, 105, 224, .16);
  --focus-ring: rgba(118, 105, 224, .28); --selection-bg: rgba(118, 105, 224, .38);
  color-scheme: dark;
}
::selection { background: var(--selection-bg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
strong, b { color: var(--white-bright); }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1.0625rem/1.7 var(--font);
  text-rendering: optimizeLegibility;
}
.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 1rem; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--bg); padding: .5rem; }

a { color: var(--accent); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
.muted { color: var(--muted); }

/* En-tête / pied */
.site-header {
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem;
  align-items: center; justify-content: space-between;
  padding-top: 2rem; padding-bottom: 2.5rem;
}
.site-header nav { margin-left: auto; }
.brand {
  color: var(--white-bright); text-decoration: none;
  font-size: 1.55rem; font-weight: 800; line-height: 1.1; letter-spacing: -.035em;
}
.brand:hover .accent { filter: brightness(1.15); }
.accent {
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-strong) 55%, #c04bb8 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-right: .05em;
}

/* Grand titre de l'accueil */
.masthead { margin: .5rem 0 2.5rem; }
.masthead-title {
  font-size: clamp(2.6rem, 9vw, 4rem); font-weight: 800; line-height: 1.02;
  letter-spacing: -.045em; margin: 0 0 1rem;
}
.masthead-tagline {
  margin: 0; color: var(--muted); font-size: 1.15rem; line-height: 1.5; max-width: 32rem;
  padding-left: 1rem; border-left: 3px solid var(--accent);
}
.site-header nav { display: flex; align-items: center; gap: 1.1rem; font-size: .95rem; }
.site-header nav a { color: var(--muted); text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current] { color: var(--accent); }
.site-footer {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
  margin-top: 5rem; padding-top: 1.5rem; padding-bottom: 3rem;
  border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem;
}
.site-footer .links { display: flex; gap: 1rem; }
.site-footer a { color: var(--muted); }

/* Titres */
h1, h2, h3, h4 { color: var(--white-bright); line-height: 1.25; letter-spacing: -.015em; margin: 2.2em 0 .6em; }
h1 { font-size: 2rem; margin-top: 0; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.15rem; }

/* Listes d'articles */
.intro { margin-bottom: 2rem; }
.intro p:first-child { margin-top: 0; }
h2.year { font-size: .85rem; color: var(--muted); font-weight: 600; letter-spacing: .06em; margin: 2.5rem 0 .5rem; }
.post-list { list-style: none; padding: 0; margin: 0; }
.post-item {
  display: grid; grid-template-columns: 7.5rem 1fr; gap: 0 1rem;
  padding: .45rem 0; border-bottom: 1px solid var(--line);
}
.post-item time { color: var(--muted); font: .85rem/1.9 var(--mono); }
.post-item a { color: var(--white-bright); text-decoration: none; font-weight: 500; }
.post-item a:hover { color: var(--accent); }
.post-item .tags { grid-column: 2; }
.tags { font-size: .8rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: .6rem; }
.tags a { color: var(--muted); text-decoration: none; }
.tags a:hover { color: var(--accent); }
@media (max-width: 34rem) {
  .post-item { grid-template-columns: 1fr; }
  .post-item .tags { grid-column: 1; }
}
.tag-cloud { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; }

/* Article */
.post-header { margin-bottom: 2rem; }
.post-header h1 { margin-bottom: .4rem; }
.meta { color: var(--muted); font-size: .9rem; margin: 0 0 .4rem; }
.content > :first-child { margin-top: 0; }
.content img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
.content figure { margin: 2rem 0; }
.content figcaption { color: var(--muted); font-size: .85rem; text-align: center; margin-top: .4rem; }
.content blockquote {
  margin: 1.5rem 0; padding: .1rem 0 .1rem 1.2rem;
  border-left: 3px solid var(--accent); color: var(--muted);
}
.content hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0; }
.content table { border-collapse: collapse; width: 100%; font-size: .95rem; display: block; overflow-x: auto; }
.content th, .content td { border-bottom: 1px solid var(--line); padding: .45rem .7rem; text-align: left; }
.content th { font-weight: 600; }
.content li + li { margin-top: .25rem; }

/* Code */
code, pre { font-family: var(--mono); font-size: .875em; }
:not(pre) > code { background: var(--code-bg); padding: .12em .35em; border-radius: 4px; }
pre {
  background: var(--code-bg); padding: 1rem 1.1rem; border-radius: var(--radius-sm);
  overflow-x: auto; line-height: 1.55; margin: 1.5rem 0;
  border: 1px solid var(--border);
}
.highlight pre { background: var(--code-bg) !important; }

/* Sommaire */
.toc { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .6rem 1rem; margin-bottom: 2rem; font-size: .92rem; }
.toc summary { cursor: pointer; color: var(--muted); }
.toc ul { padding-left: 1.1rem; margin: .4rem 0; }

/* Navigation entre articles */
.post-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
}
.post-nav a { text-decoration: none; color: var(--white-bright); }
.post-nav a:hover { color: var(--accent); }
.post-nav small { display: block; color: var(--muted); font-size: .78rem; }
.post-nav .newer { text-align: right; }

/* Tags en pastilles */
.post-header .tags a {
  background: var(--accent-soft); color: var(--accent-strong);
  padding: .1rem .55rem; border-radius: 999px;
}
.post-header .tags a:hover { color: var(--accent-strong); text-decoration: underline; }

/* Bascule clair / sombre */
.theme-toggle {
  display: inline-grid; place-items: center; width: 2rem; height: 2rem; padding: 0;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-card); color: var(--gray); cursor: pointer;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--border-strong); }
.theme-toggle svg { width: 1rem; height: 1rem; }
.theme-toggle .moon { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .moon { display: block; }
}

/* Sommaire généré */
.toc ul { list-style: none; padding-left: 0; }
.toc .toc-h3 { padding-left: 1rem; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }