/* =====================================================
   NextDomotique — Blog CSS
   Polices : Space Grotesk (titres), Inter (texte)
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

/* ── Variables light (défaut) ── */
:root {
  /* Primaire indigo */
  --color-primary:        #1E2A6B;
  --color-primary-strong: #14205A;
  --color-primary-light:  #2D3F9E;

  /* Accent cyan */
  --color-accent:         #16C2D5;
  --color-accent-strong:  #0EA5B6;

  /* Ambre */
  --color-amber:          #F59E0B;

  /* Fond & surfaces */
  --color-bg:      #F4F6FB;
  --color-surface: #ffffff;
  --color-text:    #111827;
  --color-border:  #E2E8F0;

  /* Typographie */
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;

  /* Mise en page */
  --reading-width: 720px;
  --site-width:    1100px;
  --radius:        10px;
  --shadow:        0 2px 12px rgba(30,42,107,0.10);
}

/* ── Variables dark mode ── */
[data-theme="dark"] {
  --color-bg:      #0B0F1E;
  --color-surface: #141B30;
  --color-text:    #F0F4FF;
  --color-border:  #1F2B4A;
  --shadow:        0 2px 16px rgba(0,0,0,0.45);
}

/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 1rem;
  transition: background 0.25s, color 0.25s;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary-light); text-decoration: underline; }
a:hover { color: var(--color-accent-strong); }

/* ── Header ── */
.site-header {
  background: var(--color-primary-strong);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.site-header__inner {
  max-width: var(--site-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.site-logo span { color: var(--color-accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
}

.site-nav a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.site-nav a:hover { color: var(--color-accent); }

.btn-cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 0.45rem 1.1rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none !important;
  transition: background 0.2s;
  white-space: nowrap;
}
.btn-cta:hover { background: var(--color-accent-strong) !important; color: #fff !important; }

/* Toggle thème */
.theme-toggle {
  background: none;
  border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff;
  cursor: pointer;
  border-radius: 6px;
  padding: 0.3rem 0.55rem;
  font-size: 1rem;
  line-height: 1;
  transition: border-color 0.2s, background 0.2s;
}
.theme-toggle:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }

/* ── Breadcrumb ── */
.breadcrumb {
  max-width: var(--site-width);
  margin: 1rem auto 0;
  padding: 0 1.25rem;
  font-size: 0.82rem;
  color: var(--color-text);
  opacity: 0.65;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
}
.breadcrumb a { color: inherit; }
.breadcrumb span { opacity: 0.5; }

/* ── Layout principal ── */
.page-wrapper {
  max-width: var(--site-width);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

/* ── Page Blog (liste) ── */
.blog-hero {
  text-align: center;
  padding: 3rem 1rem 2rem;
}
.blog-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}
[data-theme="dark"] .blog-hero h1 { color: #A5B4FC; }
.blog-hero p {
  max-width: 620px;
  margin: 0 auto;
  color: var(--color-text);
  opacity: 0.75;
  font-size: 1.05rem;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

/* Carte article */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 6px 24px rgba(30,42,107,0.15); }

/* Image de remplacement CSS */
.card-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 2rem;
  color: rgba(255,255,255,0.9);
  letter-spacing: -0.02em;
}
.card-thumb--indigo  { background: linear-gradient(135deg, #1E2A6B 0%, #2D3F9E 100%); }
.card-thumb--cyan    { background: linear-gradient(135deg, #0EA5B6 0%, #16C2D5 100%); }
.card-thumb--amber   { background: linear-gradient(135deg, #D97706 0%, #F59E0B 100%); }
.card-thumb--slate   { background: linear-gradient(135deg, #334155 0%, #475569 100%); }
.card-thumb--emerald { background: linear-gradient(135deg, #059669 0%, #10B981 100%); }
.card-thumb--violet  { background: linear-gradient(135deg, #6D28D9 0%, #8B5CF6 100%); }

.card-body {
  padding: 1.2rem 1.25rem 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.card-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-primary-light);
  width: fit-content;
}
[data-theme="dark"] .card-category { color: #A5B4FC; }

.card-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s;
}
.card-title:hover { color: var(--color-accent-strong); text-decoration: none; }

.card-desc {
  font-size: 0.875rem;
  color: var(--color-text);
  opacity: 0.7;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent-strong);
  text-decoration: none;
  margin-top: 0.4rem;
  transition: gap 0.2s;
}
.card-link:hover { gap: 0.55rem; color: var(--color-accent-strong); text-decoration: none; }
.card-link::after { content: '→'; }

/* ── Article ── */
.article-layout {
  display: grid;
  grid-template-columns: 1fr min(var(--reading-width), 100%) 1fr;
  gap: 0;
}
.article-layout > * { grid-column: 2; }
.article-layout > .full-width { grid-column: 1 / -1; }

.article-header {
  padding: 2.5rem 0 1.5rem;
}

.article-header .category-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-accent-strong);
  margin-bottom: 0.75rem;
}

.article-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  line-height: 1.22;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
[data-theme="dark"] .article-header h1 { color: #A5B4FC; }

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--color-text);
  opacity: 0.6;
  margin-bottom: 0.5rem;
}

/* Image principale article */
.article-cover {
  width: 100%;
  height: 340px;
  border-radius: var(--radius);
  margin: 1rem 0 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 3rem;
  color: rgba(255,255,255,0.85);
}

/* Contenu article */
.article-content {
  padding-bottom: 2rem;
}

.article-content h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 2.2rem 0 0.85rem;
  line-height: 1.3;
}
[data-theme="dark"] .article-content h2 { color: #A5B4FC; }

.article-content h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary-light);
  margin: 1.6rem 0 0.6rem;
}
[data-theme="dark"] .article-content h3 { color: #818CF8; }

.article-content p { margin-bottom: 1.1rem; }
.article-content ul, .article-content ol {
  margin: 0.6rem 0 1.1rem 1.4rem;
}
.article-content li { margin-bottom: 0.4rem; }

.article-content strong { color: var(--color-primary); font-weight: 600; }
[data-theme="dark"] .article-content strong { color: #C7D2FE; }

/* Tableau comparatif */
.table-wrap { overflow-x: auto; margin: 1.5rem 0; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
thead { background: var(--color-primary); color: #fff; }
thead th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
}
tbody tr { border-bottom: 1px solid var(--color-border); }
tbody tr:nth-child(even) { background: var(--color-bg); }
[data-theme="dark"] tbody tr:nth-child(even) { background: rgba(255,255,255,0.03); }
tbody td {
  padding: 0.7rem 1rem;
  vertical-align: top;
}
.check { color: #10B981; font-weight: 700; }
.cross { color: #EF4444; font-weight: 700; }

/* Encart CTA */
.cta-box {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  margin: 2rem 0;
  text-align: center;
}
.cta-box h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
  color: #fff !important;
}
.cta-box p { font-size: 0.92rem; opacity: 0.88; margin-bottom: 1.1rem; }
.cta-box a.btn-cta-article {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  padding: 0.65rem 1.6rem;
  border-radius: 7px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.2s;
}
.cta-box a.btn-cta-article:hover { background: var(--color-accent-strong); color: #fff; }

/* Encart info / note */
.info-box {
  background: #EFF6FF;
  border-left: 4px solid var(--color-primary-light);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}
[data-theme="dark"] .info-box {
  background: rgba(45,63,158,0.18);
  border-left-color: #818CF8;
}
.info-box strong { font-weight: 700; }

/* Encart illustratif */
.illustrative-box {
  background: #FFFBEB;
  border: 1.5px solid #FCD34D;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.88rem;
}
[data-theme="dark"] .illustrative-box {
  background: rgba(245,158,11,0.08);
  border-color: #92400E;
}
.illustrative-box strong { color: #92400E; }
[data-theme="dark"] .illustrative-box strong { color: #FCD34D; }

/* Sommaire */
.toc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 0 0 2rem;
}
.toc-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
[data-theme="dark"] .toc-title { color: #A5B4FC; }
.toc ol { margin-left: 1.1rem; }
.toc li { margin-bottom: 0.3rem; font-size: 0.88rem; }
.toc a { color: var(--color-primary-light); text-decoration: none; }
.toc a:hover { text-decoration: underline; color: var(--color-accent-strong); }

/* Liens internes blog */
.related-links {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}
.related-links h4 {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin-bottom: 0.7rem;
  font-weight: 700;
}
[data-theme="dark"] .related-links h4 { color: #A5B4FC; }
.related-links ul { list-style: none; margin: 0; padding: 0; }
.related-links li { padding: 0.25rem 0; font-size: 0.9rem; }
.related-links li::before { content: '→ '; color: var(--color-accent); font-weight: 700; }

/* ── Footer ── */
.site-footer {
  background: var(--color-primary-strong);
  color: rgba(255,255,255,0.7);
  text-align: center;
  padding: 2.5rem 1.25rem;
  font-size: 0.85rem;
  margin-top: 3rem;
}
.site-footer a { color: var(--color-accent); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer p { margin: 0.3rem 0; }
.footer-ecosystem {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .site-header__inner { gap: 0.75rem; }
  .site-nav a:not(.btn-cta) { display: none; }

  .article-layout {
    grid-template-columns: 1rem 1fr 1rem;
  }

  .article-cover { height: 220px; font-size: 2rem; }
  .blog-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .article-layout {
    grid-template-columns: 0.75rem 1fr 0.75rem;
  }
  .cta-box { padding: 1.25rem 1rem; }
}