/* ============================================================
   Ecomin — feuille de style commune
   Éco-conçue : police système, pas de dépendance externe
   ============================================================ */

/* ── Variables ────────────────────────────────────────────────── */

:root {
  --color-text:       #1a1a1a;
  --color-bg:         #fafaf8;
  --color-link:       #2a5885;
  --color-link-hover: #1a3a5c;
  --color-muted:      #666;
  --color-border:     #ddd;
  --color-accent:     #4a6741;

  --font-body: Georgia, "Times New Roman", serif;
  --font-ui:   system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "Courier New", monospace;

  --max-width: 88ch;
  --spacing:   1.5rem;
  --radius:    6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-text:       #e4e4e0;
    --color-bg:         #1a1a18;
    --color-link:       #7aadcf;
    --color-link-hover: #9dc4df;
    --color-muted:      #999;
    --color-border:     #333;
    --color-accent:     #6fa87a;
  }
}

/* ── Réinitialisation minimale ────────────────────────────────── */

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

/* ── Base ─────────────────────────────────────────────────────── */

html {
  font-size: 100%;
  scroll-behavior: auto;
}

body {
  font-family: var(--font-body);
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  margin: 0;
  padding: 0 var(--spacing);
}

/* ── Lien d'évitement (accessibilité) ─────────────────────────── */

.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: 0.5rem 1rem;
  background: var(--color-link);
  color: var(--color-bg);
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* ── Mise en page ─────────────────────────────────────────────── */

body > header, main, footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing) 0;
}

body > header {
  border-top: 3px solid var(--color-accent);
}

footer {
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-top: 1.25rem;
  padding-bottom: 2rem;
}

footer .footer-left,
footer .footer-right {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  margin: 0;
}

footer .footer-title {
  font-weight: 600;
}

/* ── Navigation — structure de base ───────────────────────────── */

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing) 0 0;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: var(--spacing);
  border-bottom: 1px solid var(--color-border);
}

.site-title {
  font-family: var(--font-ui);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color 0.15s;
  line-height: 1.1;
  margin: 0;
}

a.site-title:hover {
  color: var(--color-accent);
}

.site-subtitle {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin: 0.4rem 0 0;
  padding-bottom: var(--spacing);
  border-bottom: 1px solid var(--color-border);
}

header nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

header nav ul li a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius);
  text-decoration: none;
  background: color-mix(in srgb, var(--nav-color, var(--color-accent)) 15%, var(--color-bg));
  color: var(--nav-color, var(--color-accent));
  transition: background 0.15s, outline-color 0.15s;
  outline: 2px solid transparent;
  outline-offset: 1px;
}

header nav ul li a svg {
  flex-shrink: 0;
  width: 1.1rem;
  height: 1.1rem;
}

header nav ul li a:hover {
  background: color-mix(in srgb, var(--nav-color, var(--color-accent)) 28%, var(--color-bg));
}

header nav ul li a[aria-current="page"] {
  background: color-mix(in srgb, var(--nav-color, var(--color-accent)) 20%, var(--color-bg));
  outline-color: var(--nav-color, var(--color-accent));
}

/* ── Typographie ──────────────────────────────────────────────── */

h1, h2, h3, h4 {
  line-height: 1.25;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

h1 { font-size: 2rem; letter-spacing: -0.02em; }
h2 { font-size: 1.5rem; letter-spacing: -0.01em; }
h3 { font-size: 1.1875rem; }

h1 svg {
  width: 1.25em;
  height: 1.25em;
  vertical-align: middle;
  margin-right: 0.25em;
  color: var(--level-color, var(--color-accent));
}

p { margin: 0 0 1rem; }

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

a:hover {
  color: var(--color-link-hover);
}

:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ── Listes ───────────────────────────────────────────────────── */

ul, ol {
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.25rem;
}

/* ── Citations ────────────────────────────────────────────────── */

blockquote {
  border-left: 3px solid var(--color-accent);
  margin: 1.5rem 0;
  padding: 0.5rem 1rem;
  color: var(--color-muted);
  font-style: italic;
}

blockquote p:last-child {
  margin-bottom: 0;
}

/* ── Code ─────────────────────────────────────────────────────── */

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: color-mix(in srgb, var(--color-border) 40%, var(--color-bg));
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

pre {
  overflow-x: auto;
  padding: 1rem;
  background: color-mix(in srgb, var(--color-border) 30%, var(--color-bg));
  border-radius: var(--radius);
  margin: var(--spacing) 0;
}

pre code {
  background: none;
  padding: 0;
}

/* ── Tableaux ─────────────────────────────────────────────────── */

table {
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  width: 100%;
  margin: var(--spacing) 0;
  font-size: 0.9375rem;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

th {
  color: var(--color-muted);
  font-weight: normal;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  border-bottom-color: var(--color-text);
}

tr:last-child td {
  border-bottom: none;
}

/* ── Descriptions & métadonnées ───────────────────────────────── */

.description {
  color: var(--color-muted);
  font-size: 0.9375rem;
  font-style: italic;
  margin-bottom: 0;
}

.muted {
  color: var(--color-muted);
}

article > header h1,
section > header h1 {
  margin-top: 0.25rem;
  margin-bottom: 0.375rem;
}

/* ── Page header (titre coloré) ──────────────────────────────── */

.page-header {
  --level-color: var(--color-border);
  border: 1px solid color-mix(in srgb, var(--level-color) 30%, transparent);
  border-left: 4px solid var(--level-color);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--level-color) 6%, var(--color-bg));
  padding: 1rem 1.25rem;
  margin-bottom: var(--spacing);
}

.page-header-title {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0 0 0.25rem;
}

.page-header-title-text {
  flex: 1;
}

.page-header .description {
  margin-top: 0.25rem;
}

.page-header + .post-content h2:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}

/* ── Contenu d'article ────────────────────────────────────────── */

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
  margin: var(--spacing) auto;
}

.post-content h2 {
  margin-top: 2.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}

.post-content h3 {
  margin-top: 1.75rem;
}

.section-content {
  margin-bottom: var(--spacing);
}

/* ── Fil d'Ariane ─────────────────────────────────────────────── */

.breadcrumb {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.breadcrumb li + li::before {
  content: "›";
  margin-right: 0.25rem;
  color: var(--color-border);
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-link);
  text-decoration: underline;
}

.breadcrumb li:last-child {
  color: var(--color-text);
}

/* ── Page cards ──────────────────────────────────────────────── */

.page-cards {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-cards li {
  margin: 0;
}

.page-card-link {
  --level-color: var(--color-accent);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.75rem 1rem;
  text-decoration: none;
  background: color-mix(in srgb, var(--level-color) 6%, var(--color-bg));
  border: 1px solid color-mix(in srgb, var(--level-color) 20%, transparent);
  border-left: 4px solid var(--level-color);
  border-radius: var(--radius);
  transition: background 0.15s, border-color 0.15s;
}

.page-card-link:hover {
  background: color-mix(in srgb, var(--level-color) 13%, var(--color-bg));
  border-color: color-mix(in srgb, var(--level-color) 40%, transparent);
}

.page-card-title {
  font-family: var(--font-ui);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.page-card-title-text {
  flex: 1;
}

.page-card-title svg {
  flex-shrink: 0;
  color: var(--level-color);
}

.page-desc {
  font-size: 0.875rem;
  color: var(--color-muted);
  font-family: var(--font-ui);
  font-style: italic;
}

.count {
  font-size: 0.8125rem;
  color: var(--color-muted);
  background: color-mix(in srgb, var(--color-border) 50%, var(--color-bg));
  padding: 0.05em 0.4em;
  border-radius: 2px;
}

/* ── Badges / tags ────────────────────────────────────────────── */

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0;
}

.badge {
  --badge-color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.1em 0.45em;
  border-radius: 3px;
  font-size: 0.8125rem;
  font-family: var(--font-ui);
  text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--badge-color) 50%, transparent);
  color: var(--badge-color);
  white-space: nowrap;
  transition: background 0.15s;
}

.badge svg {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

.badge:hover {
  background: color-mix(in srgb, var(--badge-color) 10%, var(--color-bg));
  color: var(--badge-color);
  text-decoration: none;
}

/* ── Ressources & liens ───────────────────────────────────────── */

.resources {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.resources li {
  margin: 0;
}

/* ── Impression ───────────────────────────────────────────────── */

@media print {
  .skip-link, header nav, footer, .breadcrumb { display: none; }
  body { font-size: 11pt; color: #000; background: #fff; padding: 0; }
  a { color: #000; text-decoration: none; }
  h1 { font-size: 18pt; }
  h2 { font-size: 14pt; }
  .badge, .tags, .resources { display: none; }
  .page-card-link {
    border: 1px solid #ccc;
    border-radius: 0;
  }
}

/* ── Pas d'animation si demandé ───────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}