/* ============================================================
   velatz.dev — blog technique
   Direction : sombre, technique, propre et moderne.
   Vocabulaire visuel emprunté au désassembleur / hex editor.
   Accent terre de sienne réservé à la signature.
   ============================================================ */

:root {
  /* Palette — encre profonde, pas de gris plat */
  --bg:        #0d0e12;   /* fond encre, légèrement bleuté */
  --bg-soft:   #14161c;   /* surfaces (cartes, blocs code) */
  --bg-line:   #1e212a;   /* filets, bordures discrètes */
  --ink:       #e7e9ee;   /* texte principal */
  --ink-dim:   #9aa0ad;   /* texte secondaire */
  --ink-faint: #5b616f;   /* métadonnées, offsets */
  --accent:    #c24a2e;   /* terre de sienne — signature */
  --accent-so: #e0673f;   /* variante claire pour hover */

  /* Typo */
  --mono: "JetBrains Mono", "SF Mono", "Menlo", "Consolas", ui-monospace, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --maxw: 720px;
  --radius: 10px;
}

/* ---------- Reset léger ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* halo discret en haut, comme la lueur d'un écran */
  background-image: radial-gradient(120% 60% at 50% -10%, #16181f 0%, var(--bg) 60%);
  min-height: 100vh;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  padding: 40px 0 0;
}
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 14px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand .mark {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: #0e0e10;
  display: grid; place-items: center;
  color: var(--ink);
  font-weight: 700;
  position: relative;
  flex: 0 0 auto;
}
.brand .mark::after { /* le point terre de sienne de l'avatar */
  content: ""; position: absolute; right: 5px; bottom: 5px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--accent);
}
.site-nav a.nav-link {
  color: var(--ink-dim);
  text-decoration: none;
  margin-left: 22px;
  transition: color .15s ease;
}
.site-nav a.nav-link:hover { color: var(--accent-so); }

/* ---------- Hero / intro ---------- */
.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--bg-line);
  margin-bottom: 8px;
}
.hero .eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}
.hero .eyebrow .accent { color: var(--accent); }
.hero h1 {
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.15;
  font-weight: 650;
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.hero p {
  margin-top: 18px;
  color: var(--ink-dim);
  font-size: 18px;
  max-width: 46ch;
}

/* ---------- Liste d'articles ---------- */
.post-list { padding: 32px 0 80px; }
.post-list h2.section-label {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  margin-bottom: 8px;
}

.post-row {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 26px 0;
  border-bottom: 1px solid var(--bg-line);
  position: relative;
  transition: transform .18s ease;
}
.post-row:hover { transform: translateX(4px); }

.post-meta {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}
/* l'index d'article traité comme une adresse mémoire — la signature */
.post-addr { color: var(--accent); }
.post-date {}
.post-tags { color: var(--ink-faint); }

.post-row h3 {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  transition: color .15s ease;
}
.post-row:hover h3 { color: var(--accent-so); }
.post-row p.excerpt {
  margin-top: 7px;
  color: var(--ink-dim);
  font-size: 16px;
  max-width: 60ch;
}
.post-row .arrow {
  position: absolute; right: 2px; top: 50%; transform: translateY(-50%);
  color: var(--ink-faint);
  font-family: var(--mono);
  opacity: 0; transition: opacity .15s ease, color .15s ease;
}
.post-row:hover .arrow { opacity: 1; color: var(--accent); }

/* ---------- Article ---------- */
.article-header {
  padding: 64px 0 36px;
  border-bottom: 1px solid var(--bg-line);
}
.article-header .back {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 28px;
  transition: color .15s ease;
}
.article-header .back:hover { color: var(--accent-so); }
.article-header .post-meta { margin-bottom: 16px; }
.article-header h1 {
  font-size: clamp(26px, 4.5vw, 36px);
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.article-body { padding: 44px 0 80px; }
.article-body > * + * { margin-top: 24px; }
.article-body h2 {
  font-size: 22px; font-weight: 650; letter-spacing: -0.01em;
  margin-top: 48px; padding-top: 4px;
}
.article-body h2::before {
  content: "// ";
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 500;
}
.article-body h3 { font-size: 18px; font-weight: 600; margin-top: 32px; }
.article-body p { color: #d4d7de; }
.article-body a { color: var(--accent-so); text-underline-offset: 3px; }
.article-body a:hover { color: var(--accent); }
.article-body ul, .article-body ol { padding-left: 22px; color: #d4d7de; }
.article-body li { margin-top: 8px; }
.article-body strong { color: var(--ink); font-weight: 650; }
.article-body blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 18px;
  color: var(--ink-dim);
  font-style: italic;
}

/* code inline */
.article-body code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-soft);
  border: 1px solid var(--bg-line);
  padding: 1px 6px;
  border-radius: 5px;
  color: #e6c9a8;
}
/* blocs de code */
.article-body pre {
  background: var(--bg-soft);
  border: 1px solid var(--bg-line);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.6;
  position: relative;
}
.article-body pre code {
  background: none; border: none; padding: 0; color: #d6d9e0;
  font-size: inherit;
}
/* petite étiquette de langage, façon en-tête de section hex */
.article-body pre[data-lang]::before {
  content: attr(data-lang);
  position: absolute; top: 0; right: 0;
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-faint);
  background: var(--bg-line);
  padding: 2px 8px;
  border-bottom-left-radius: 6px;
  letter-spacing: 0.05em;
}

/* coloration syntaxique minimale (classes ajoutées au build) */
.tok-key { color: #d98a5c; }      /* mots-clés — teinte accent */
.tok-str { color: #9db07f; }      /* chaînes */
.tok-com { color: var(--ink-faint); font-style: italic; }
.tok-num { color: #c9a06a; }
.tok-fn  { color: #cdb4e0; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--bg-line);
  padding: 32px 0 56px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-faint);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.site-footer a { color: var(--ink-dim); text-decoration: none; }
.site-footer a:hover { color: var(--accent-so); }

/* ---------- Focus visible (accessibilité) ---------- */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-so);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero { padding: 48px 0 40px; }
  .post-row .arrow { display: none; }
  .site-footer { flex-direction: column; }

  /* le header (marque + liens) débordait horizontalement sur mobile :
     on l'autorise à passer à la ligne et on resserre les espacements
     redondants (gap du conteneur + margin-left de chaque lien). */
  .site-nav {
    flex-wrap: wrap;
    row-gap: 12px;
  }
  .site-nav a.nav-link {
    margin-left: 0;
  }
  .socials {
    flex-wrap: wrap;
    gap: 12px;
    row-gap: 8px;
  }
}

/* ---------- Avatar (photo de profil, remplaçable) ---------- */
.brand .avatar {
  width: 26px; height: 26px;
  border-radius: 7px;
  object-fit: cover;
  flex: 0 0 auto;
  display: block;
}

/* ---------- Liens réseaux avec icônes ---------- */
.socials { display: inline-flex; align-items: center; gap: 20px; }
.site-nav .socials { gap: 20px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.nav-link svg { flex: 0 0 auto; opacity: 0.9; }
.nav-link:hover svg { opacity: 1; }
.site-footer .socials .nav-link { margin-left: 0; }

/* ---------- Empty state (aucun article) ---------- */
.empty-state {
  padding: 48px 0 40px;
  border-bottom: 1px solid var(--bg-line);
}
.empty-addr {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 14px;
}
.empty-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.empty-sub {
  margin-top: 8px;
  color: var(--ink-dim);
  font-size: 16px;
  max-width: 52ch;
}