/* ═══════════════════════════════════════════════════════════
   Base & tokens
   Trois ambiances : neutre (accueil, blog), dev, écriture.
   Chaque univers pose une classe .u-* ; :root:has() bascule les tokens
   pour que l'en-tête et le fond suivent l'univers courant.
   ═══════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font-sans: "Inter";
  --font-mono: "JetBrains Mono";
  --font-display: "Cormorant Garamond";
  --font-serif: "Source Serif 4";

  --bg: #f6f5f1;
  --surface: #ffffff;
  --fg: #1c1c1a;
  --muted: #6e6c66;
  --line: #e3e1da;
  --accent: #2f5bd3;
  --accent-fg: #ffffff;
  --code-bg: #efeee9;
  --font-body: var(--font-sans), system-ui, sans-serif;
  --font-heading: var(--font-sans), system-ui, sans-serif;
  --radius: 10px;
  --maxw: 1080px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not(:has(.u-dev, .u-writing, .u-admin)) {
    --bg: #121212;
    --surface: #1a1a1a;
    --fg: #ebe9e4;
    --muted: #9a978f;
    --line: #2a2a28;
    --accent: #7b9cff;
    --accent-fg: #0d0d0d;
    --code-bg: #1f1f1e;
    color-scheme: dark;
  }
}

/* Univers développeur : sombre, technique, accents teal/vert (cousin de writingmgmt) */
:root:has(.u-dev) {
  --bg: #0a0c0d;
  --surface: #111517;
  --fg: #dfe5e7;
  --muted: #7c8a8f;
  --line: #1d2427;
  --accent: #5ecdd5;
  --accent-2: #4bff82;
  --accent-fg: #061214;
  --code-bg: #0f1315;
  --font-heading: var(--font-mono), ui-monospace, monospace;
  color-scheme: dark;
}

/* Univers écriture : papier, encre, serif éditorial */
:root:has(.u-writing) {
  --bg: #f3ece0;
  --surface: #faf6ee;
  --fg: #2b221c;
  --muted: #7d6c5d;
  --line: #ddcfbb;
  --accent: #a8552e;
  --accent-fg: #fff8f0;
  --code-bg: #ece3d4;
  --font-body: var(--font-serif), Georgia, serif;
  --font-heading: var(--font-display), Georgia, serif;
  color-scheme: light;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s;
}

a { color: inherit; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ═══════════════ En-tête & pied ═══════════════ */

.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 60px;
}

.brand {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand span { color: var(--accent); }

.nav { display: flex; gap: 4px; }
.nav a {
  text-decoration: none;
  color: var(--muted);
  font-family: var(--font-sans), system-ui, sans-serif;
  font-size: 0.9rem;
  padding: 6px 12px;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
}
.nav a:hover { color: var(--fg); }
.nav a[aria-current="page"] { color: var(--fg); background: color-mix(in srgb, var(--fg) 8%, transparent); }

@media (max-width: 520px) {
  .brand-full { display: none; }
  .nav a { padding: 6px 9px; font-size: 0.85rem; }
}

main { flex: 1; }

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-sans), system-ui, sans-serif;
  font-size: 0.85rem;
  padding: 28px 0;
  margin-top: 80px;
}
.site-footer .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }

/* ═══════════════ Éléments communs ═══════════════ */

.eyebrow {
  font-family: var(--font-mono), ui-monospace, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-head { padding: 72px 0 40px; }
.page-head h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  font-weight: 600;
  margin: 10px 0 14px;
  letter-spacing: -0.01em;
}
.page-head p { color: var(--muted); max-width: 60ch; font-size: 1.1rem; }

.section { padding: 40px 0; }
.section-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-sans), system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}
.tag .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--c, var(--accent)); }
a.tag:hover { color: var(--fg); border-color: var(--muted); }
.tag[aria-current="page"] { color: var(--fg); border-color: var(--fg); }

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans), system-ui, sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  transition: opacity 0.15s;
}
.btn-link:hover { opacity: 0.88; }
.btn-link.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); }
.btn-link.ghost:hover { border-color: var(--muted); opacity: 1; }

.empty-state { color: var(--muted); padding: 24px 0; font-style: italic; }

/* ═══════════════ Accueil ═══════════════ */

.home-hero { padding: 88px 0 48px; }
.home-hero h1 {
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1.02;
  font-weight: 600;
  letter-spacing: -0.03em;
  max-width: 14ch;
}
.home-hero h1 em {
  font-family: var(--font-display), Georgia, serif;
  font-weight: 500;
  font-style: italic;
  letter-spacing: 0;
}
.home-hero h1 code {
  font-family: var(--font-mono), monospace;
  font-size: 0.82em;
  font-weight: 500;
  letter-spacing: -0.04em;
}
.home-hero p { color: var(--muted); font-size: 1.15rem; max-width: 52ch; margin-top: 20px; }

.universes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0 64px;
}
@media (max-width: 760px) { .universes { grid-template-columns: 1fr; } }

.universe-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 320px;
  padding: 28px;
  border-radius: 16px;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.universe-card:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -20px rgba(0,0,0,.35); }

.universe-card.dev {
  background: #0a0c0d;
  color: #dfe5e7;
  border: 1px solid #1d2427;
  font-family: var(--font-mono), monospace;
}
.universe-card.dev .uc-kicker { color: #5ecdd5; }
.universe-card.dev h2 { font-family: var(--font-mono), monospace; font-weight: 500; font-size: 1.7rem; letter-spacing: -0.02em; }
.universe-card.dev .uc-art {
  font-size: 0.78rem;
  line-height: 1.7;
  color: #7c8a8f;
  white-space: pre;
}
.universe-card.dev .uc-art b { color: #4bff82; font-weight: 400; }
.universe-card.dev .uc-art i { color: #5ecdd5; font-style: normal; }

.universe-card.writing {
  background: #f3ece0;
  color: #2b221c;
  border: 1px solid #ddcfbb;
  font-family: var(--font-serif), Georgia, serif;
}
.universe-card.writing .uc-kicker { color: #a8552e; }
.universe-card.writing h2 { font-family: var(--font-display), Georgia, serif; font-weight: 500; font-size: 2.3rem; font-style: italic; }
.universe-card.writing .uc-art {
  font-size: 1.02rem;
  line-height: 1.6;
  color: #7d6c5d;
  font-style: italic;
  max-width: 34ch;
}
.universe-card.writing .uc-art::first-letter {
  font-family: var(--font-display), Georgia, serif;
  float: left;
  font-size: 3.4em;
  line-height: 0.8;
  padding: 6px 8px 0 0;
  color: #2b221c;
  font-style: normal;
}

.uc-kicker { font-family: var(--font-mono), monospace; font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; }
.uc-foot { display: flex; justify-content: space-between; align-items: end; gap: 12px; margin-top: 24px; }
.uc-foot p { font-size: 0.95rem; opacity: 0.8; max-width: 30ch; }
.uc-arrow { font-size: 1.4rem; transition: transform 0.2s; }
.universe-card:hover .uc-arrow { transform: translateX(4px); }

/* ═══════════════ Liste d'articles ═══════════════ */

.post-list { list-style: none; display: flex; flex-direction: column; }
.post-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.post-item:last-child { border-bottom: 1px solid var(--line); }
.post-item time { color: var(--muted); font-size: 0.85rem; font-family: var(--font-sans), sans-serif; padding-top: 4px; }
.post-item h3 { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 600; line-height: 1.3; }
.post-item h3 a { text-decoration: none; }
.post-item h3 a:hover { color: var(--accent); }
.post-item p { color: var(--muted); margin-top: 6px; }
.post-item .meta { display: flex; gap: 8px; margin-top: 10px; align-items: center; }
@media (max-width: 600px) {
  .post-item { grid-template-columns: 1fr; gap: 6px; }
}

.category-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }

/* ═══════════════ Article ═══════════════ */

.article { max-width: 720px; margin: 0 auto; padding: 64px var(--gutter) 0; }
.article-head { margin-bottom: 36px; }
.article-head h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 14px 0;
}
.article-head .meta { color: var(--muted); font-size: 0.9rem; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; font-family: var(--font-sans), sans-serif; }
.article-cover { border-radius: var(--radius); margin-bottom: 36px; width: 100%; }

.prose { font-family: var(--font-serif), Georgia, serif; font-size: 1.1rem; line-height: 1.75; }
.prose > * + * { margin-top: 1.1em; }
.prose h2, .prose h3 { font-family: var(--font-heading); line-height: 1.25; margin-top: 2em; }
.prose h2 { font-size: 1.6rem; }
.prose h3 { font-size: 1.25rem; }
.prose a { color: var(--accent); }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: 0.35em; }
.prose blockquote { border-left: 3px solid var(--accent); padding-left: 1em; color: var(--muted); font-style: italic; }
.prose code { font-family: var(--font-mono), monospace; font-size: 0.86em; background: var(--code-bg); padding: 0.1em 0.35em; border-radius: 4px; }
.prose pre { background: var(--code-bg); padding: 16px 18px; border-radius: var(--radius); overflow-x: auto; font-size: 0.9rem; line-height: 1.55; border: 1px solid var(--line); }
.prose pre code { background: none; padding: 0; }
.prose img { border-radius: var(--radius); }
.prose hr { border: none; text-align: center; }
.prose hr::after { content: "⁂"; color: var(--muted); }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; }

.article-foot { max-width: 720px; margin: 56px auto 0; padding: 24px var(--gutter) 0; border-top: 1px solid var(--line); }

/* ═══════════════ Univers développeur ═══════════════ */

.u-dev .page-head h1 { font-weight: 500; letter-spacing: -0.03em; }
.u-dev .page-head h1 .caret { color: var(--accent-2); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .u-dev .page-head h1 .caret { animation: none; } }

.dev-links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }

.dev-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 760px) { .dev-grid { grid-template-columns: 1fr; } }

.skill-group {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.skill-group h3 { font-family: var(--font-mono), monospace; font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); font-weight: 500; margin-bottom: 10px; }
.skill-group ul { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.skill-group li { font-family: var(--font-mono), monospace; font-size: 0.82rem; padding: 3px 10px; border-radius: 6px; background: color-mix(in srgb, var(--accent) 9%, transparent); color: var(--fg); }

.timeline { list-style: none; border-left: 1px solid var(--line); margin-left: 6px; }
.timeline li { position: relative; padding: 0 0 28px 26px; }
.timeline li::before {
  content: ""; position: absolute; left: -5px; top: 8px; width: 9px; height: 9px;
  border-radius: 50%; background: var(--bg); border: 2px solid var(--accent);
}
.timeline li:first-child::before { background: var(--accent-2, var(--accent)); border-color: var(--accent-2, var(--accent)); }
.timeline .period { font-family: var(--font-mono), monospace; font-size: 0.78rem; color: var(--muted); }
.timeline h3 { font-size: 1.1rem; font-weight: 600; margin: 2px 0; }
.timeline h3 span { color: var(--accent); font-weight: 500; }
.timeline p { color: var(--muted); max-width: 70ch; white-space: pre-line; }
.timeline .stack { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.timeline .stack span { font-family: var(--font-mono), monospace; font-size: 0.72rem; color: var(--accent); }

.project-card {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.2s;
}
.project-card:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }
.project-card header { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.project-card h3 { font-family: var(--font-mono), monospace; font-size: 1.05rem; font-weight: 500; }
.project-card .year { font-family: var(--font-mono), monospace; font-size: 0.75rem; color: var(--muted); }
.project-card p { color: var(--muted); font-size: 0.95rem; flex: 1; }
.project-card .stack { display: flex; flex-wrap: wrap; gap: 6px; }
.project-card .stack span { font-family: var(--font-mono), monospace; font-size: 0.72rem; color: var(--accent-2); }
.project-card .links { display: flex; gap: 14px; font-size: 0.85rem; font-family: var(--font-mono), monospace; }
.project-card .links a { color: var(--accent); text-decoration: none; }
.project-card .links a:hover { text-decoration: underline; }

/* ═══════════════ Univers écriture ═══════════════ */

.u-writing .page-head h1 { font-weight: 500; font-size: clamp(2.6rem, 6vw, 4.2rem); }
.u-writing .page-head h1 em { color: var(--accent); }
.u-writing .eyebrow { font-family: var(--font-serif), serif; text-transform: none; letter-spacing: 0.02em; font-style: italic; font-size: 0.95rem; }
.u-writing .section-title { font-weight: 500; font-size: 1.8rem; font-style: italic; }

.books { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }

.book {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}
.book:hover { transform: translateY(-3px); box-shadow: 0 16px 30px -18px rgba(70, 40, 20, .45); }
.book-cover {
  aspect-ratio: 3 / 2;
  background: linear-gradient(160deg, #3a2b21, #6b3f26);
  color: #f3ece0;
  display: flex;
  align-items: flex-end;
  padding: 20px;
  position: relative;
}
.book-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.book-cover span { position: relative; font-family: var(--font-display), serif; font-size: 1.9rem; font-style: italic; line-height: 1.1; text-shadow: 0 2px 12px rgba(0,0,0,.4); }
.book-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.book-body .genre { font-style: italic; color: var(--muted); font-size: 0.92rem; }
.book-body p { font-size: 0.98rem; }
.book-status { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 10px; font-family: var(--font-sans), sans-serif; font-size: 0.8rem; color: var(--muted); }
.progress-mini { flex: 1; max-width: 120px; height: 4px; background: var(--line); border-radius: 2px; overflow: hidden; }
.progress-mini > span { display: block; height: 100%; background: var(--accent); }

.book-page { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 48px; align-items: start; }
@media (max-width: 860px) { .book-page { grid-template-columns: 1fr; } }
.book-aside { border: 1px solid var(--line); background: var(--surface); border-radius: 4px; padding: 20px; font-size: 0.95rem; }
.book-aside dl { display: grid; gap: 12px; }
.book-aside dt { font-family: var(--font-sans), sans-serif; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.book-aside dd { font-style: italic; }

.tagline { font-family: var(--font-display), serif; font-style: italic; font-size: 1.5rem; color: var(--muted); line-height: 1.35; }

.public-progress { margin-top: 48px; }
.public-progress .section-title { margin-bottom: 14px; }