/* === Sac de Frappe — CMS Heteractis === */

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

:root {
  --color-bg: #0a0a0a;
  --color-surface: #141414;
  --color-surface-alt: #1a1a1a;
  --color-text: #e8e8e8;
  --color-text-muted: #999;
  --color-primary: #e53e3e;
  --color-primary-dark: #c53030;
  --color-accent: #ff6b6b;
  --color-border: #2a2a2a;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Georgia', serif;
  --container: 1140px;
  --radius: 8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
}

a { color: var(--color-accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-primary); }

img { max-width: 100%; height: auto; display: block; }

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

.skip-link {
  position: absolute; left: -9999px; top: auto;
  background: var(--color-primary); color: #fff; padding: 8px 16px; z-index: 1000;
}
.skip-link:focus { left: 10px; top: 10px; }

/* === NAV === */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,10,10,.95); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow .3s;
}
.nav.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.5); }
.nav-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 70px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  color: var(--color-text); font-weight: 700; font-size: 1.1rem;
}
.brand:hover { color: var(--color-primary); }
.brand .logo { border-radius: 6px; }
.nav-menu {
  list-style: none; display: flex; gap: 32px;
}
.nav-menu a {
  color: var(--color-text-muted); font-size: .95rem; font-weight: 500;
  padding: 8px 0; position: relative; transition: color .2s;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--color-text); }
.nav-menu a.active::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--color-primary); border-radius: 2px;
}
.nav-cta {
  background: var(--color-primary); color: #fff !important; padding: 10px 20px;
  border-radius: var(--radius); font-weight: 600; font-size: .9rem;
  transition: background .2s;
}
.nav-cta:hover { background: var(--color-primary-dark); }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 36px; height: 36px; position: relative;
}
.hamburger, .hamburger::before, .hamburger::after {
  display: block; width: 24px; height: 2px;
  background: var(--color-text); position: absolute; left: 6px;
  transition: transform .3s, opacity .3s;
}
.hamburger { top: 17px; }
.hamburger::before { content: ''; top: -7px; }
.hamburger::after { content: ''; top: 7px; }
.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active .hamburger::after { transform: translateY(-7px) rotate(-45deg); }

/* === HERO === */
.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  align-items: center; padding: 80px 24px;
  max-width: var(--container); margin: 0 auto;
}
.hero-prefix { color: var(--color-primary); font-weight: 600; text-transform: uppercase; font-size: .9rem; letter-spacing: 2px; }
.hero h1 { font-family: var(--font-heading); font-size: 3rem; line-height: 1.2; margin: 12px 0 20px; }
.hero-desc { color: var(--color-text-muted); font-size: 1.1rem; margin-bottom: 32px; }
.hero-image img { border-radius: 12px; }

/* === BUTTONS === */
.btn {
  display: inline-block; padding: 14px 28px; border-radius: var(--radius);
  font-weight: 600; font-size: .95rem; transition: all .2s; cursor: pointer;
  border: none; text-align: center;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-secondary {
  background: transparent; color: var(--color-text); border: 1px solid var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* === STATS === */
.stats { background: var(--color-surface); padding: 60px 24px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center;
}
.stat-number { display: block; font-size: 2.5rem; font-weight: 700; color: var(--color-primary); }
.stat-label { display: block; color: var(--color-text-muted); font-size: .9rem; margin-top: 8px; }

/* === SECTIONS === */
.section-prefix {
  color: var(--color-primary); font-weight: 600; text-transform: uppercase;
  font-size: .85rem; letter-spacing: 2px; display: block; margin-bottom: 8px;
}

.about-section { padding: 80px 24px; }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-image img { border-radius: 12px; }
.about-content h2 { font-family: var(--font-heading); font-size: 2rem; margin: 8px 0 16px; }
.about-content h3 { font-size: 1.1rem; color: var(--color-text-muted); margin-bottom: 16px; font-weight: 400; }
.about-content p { color: var(--color-text-muted); margin-bottom: 20px; }

.check-list { list-style: none; margin: 20px 0; }
.check-list li {
  padding: 8px 0 8px 28px; position: relative; color: var(--color-text);
}
.check-list li::before {
  content: '\2713'; position: absolute; left: 0; color: var(--color-primary); font-weight: 700;
}

/* === SERVICES === */
.services-preview, .services-detail { padding: 80px 24px; }
.services-preview { background: var(--color-surface); }
.services-preview h2, .services-detail h2 { font-family: var(--font-heading); font-size: 2rem; margin-bottom: 40px; }
.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.service-card {
  background: var(--color-surface-alt); border: 1px solid var(--color-border);
  border-radius: 12px; padding: 32px; transition: border-color .3s;
}
.service-card:hover { border-color: var(--color-primary); }
.service-num { color: var(--color-primary); font-weight: 700; font-size: 1.2rem; }
.service-card h3 { font-size: 1.2rem; margin: 12px 0; }
.service-card p { color: var(--color-text-muted); font-size: .95rem; }

/* === PROCESS === */
.process-section { padding: 60px 24px; background: var(--color-surface); }
.process-section h2 { font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 40px; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.process-step { text-align: center; padding: 24px; }
.step-num { color: var(--color-primary); font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: 2px; }
.process-step h3 { margin: 12px 0; font-size: 1.3rem; }
.process-step p { color: var(--color-text-muted); }

/* === ARTICLES / BLOG === */
.recent-articles, .blog-listing { padding: 80px 24px; }
.recent-articles h2, .blog-listing h2 { font-family: var(--font-heading); font-size: 2rem; margin-bottom: 40px; }
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 12px; padding: 28px; display: block;
  color: var(--color-text); transition: border-color .3s, transform .2s;
}
.article-card:hover { border-color: var(--color-primary); transform: translateY(-4px); color: var(--color-text); }
.article-card h3 { font-size: 1.1rem; margin-bottom: 12px; line-height: 1.4; }
.article-card p { color: var(--color-text-muted); font-size: .9rem; }
.article-meta {
  display: inline-block; margin-top: 12px; padding: 4px 12px;
  background: var(--color-surface-alt); border-radius: 20px;
  font-size: .8rem; color: var(--color-primary);
}

/* === BLOG ARTICLE === */
.blog-article { padding-bottom: 40px; }
.article-header { padding: 60px 24px 40px; background: var(--color-surface); margin-bottom: 40px; }
.article-header .container { max-width: 800px; }
.article-category {
  display: inline-block; padding: 4px 16px; background: var(--color-primary);
  color: #fff; border-radius: 20px; font-size: .8rem; font-weight: 600; margin-bottom: 16px;
}
.article-header h1 { font-family: var(--font-heading); font-size: 2.2rem; line-height: 1.3; margin-bottom: 16px; }
.article-intro { color: var(--color-text-muted); font-size: 1.1rem; line-height: 1.7; }
.article-body { max-width: 800px; }
.article-body h2 { font-size: 1.6rem; margin: 40px 0 16px; padding-top: 20px; border-top: 1px solid var(--color-border); }
.article-body h2:first-child { border-top: none; padding-top: 0; }
.article-body h3 { font-size: 1.2rem; margin: 24px 0 12px; color: var(--color-accent); }
.article-body p { color: var(--color-text-muted); margin-bottom: 16px; }
.article-body ul { margin: 16px 0; padding-left: 24px; }
.article-body li { color: var(--color-text-muted); margin-bottom: 8px; }
.article-body li strong { color: var(--color-text); }

/* === PAGE HEADER === */
.page-header { padding: 60px 24px 40px; background: var(--color-surface); margin-bottom: 40px; }
.page-header h1 { font-family: var(--font-heading); font-size: 2.2rem; }
.page-header p { color: var(--color-text-muted); margin-top: 12px; font-size: 1.05rem; }

/* === ABOUT DETAIL === */
.about-detail, .mission-section, .values-section, .history-section { padding: 40px 24px; }
.about-detail h2, .mission-section h2, .values-section h2, .history-section h2 {
  font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 16px;
}
.about-detail p, .mission-section p, .values-section p, .history-section p {
  color: var(--color-text-muted); margin-bottom: 16px; max-width: 800px;
}

/* === CONTACT === */
.contact-section { padding: 0 24px 60px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h2, .contact-form-wrap h2 { font-family: var(--font-heading); font-size: 1.6rem; margin-bottom: 24px; }
.contact-item { margin-bottom: 20px; }
.contact-item strong { display: block; color: var(--color-primary); margin-bottom: 4px; }
.contact-item p { color: var(--color-text-muted); }
.contact-form-wrap p { color: var(--color-text-muted); margin-bottom: 24px; }

.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: .9rem; }
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 16px; background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius);
  color: var(--color-text); font-size: .95rem; font-family: var(--font-sans);
  transition: border-color .2s;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--color-primary);
}

/* === LEGAL === */
.legal-content { padding: 0 24px 60px; }
.legal-content .container { max-width: 800px; }
.legal-content h2 { font-size: 1.4rem; margin: 32px 0 12px; }
.legal-content p { color: var(--color-text-muted); margin-bottom: 12px; }
.legal-content ul { margin: 12px 0; padding-left: 24px; }
.legal-content li { color: var(--color-text-muted); margin-bottom: 6px; }

/* === CTA === */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  padding: 60px 24px; text-align: center; margin-top: 40px;
}
.cta-inner h2 { font-family: var(--font-heading); font-size: 1.8rem; color: #fff; margin-bottom: 12px; }
.cta-inner p { color: rgba(255,255,255,.8); margin-bottom: 24px; font-size: 1.05rem; }
.cta-section .btn-primary { background: #fff; color: var(--color-primary); }
.cta-section .btn-primary:hover { background: #f0f0f0; }

/* === FOOTER === */
.site-footer {
  background: var(--color-surface); border-top: 1px solid var(--color-border);
  padding: 32px 24px; text-align: center;
}
.footer-inner { max-width: var(--container); margin: 0 auto; }
.footer-links { margin-bottom: 12px; }
.footer-links a { color: var(--color-text-muted); margin: 0 16px; font-size: .9rem; }
.footer-links a:hover { color: var(--color-text); }
.footer-copy { color: var(--color-text-muted); font-size: .85rem; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav-menu { display: none; flex-direction: column; position: absolute; top: 70px; left: 0; right: 0;
    background: var(--color-bg); border-bottom: 1px solid var(--color-border);
    padding: 16px 24px; gap: 0; }
  .nav-menu.open { display: flex; }
  .nav-menu li { padding: 8px 0; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }

  .hero { grid-template-columns: 1fr; padding: 40px 24px; gap: 32px; }
  .hero h1 { font-size: 2rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .services-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-form .form-row { grid-template-columns: 1fr; }
  .article-header h1 { font-size: 1.6rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.6rem; }
}

/* --- fil d'Ariane -----------------------------------------------------------
   Discret par construction : il sert a s'orienter, pas a attirer l'oeil. */
.he-ariane { max-width: 1180px; margin: 0 auto; padding: .9rem 1.2rem .2rem; }
.he-ariane ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem;
  margin: 0; padding: 0; font-size: .85rem; color: #777; }
.he-ariane li + li::before { content: "\203A"; margin-right: .4rem; color: #aaa; }
.he-ariane a { color: #777; text-decoration: none; }
.he-ariane a:hover { color: currentColor; text-decoration: underline; }

/* --- articles lies ----------------------------------------------------------
   Pose par poser_articles_lies.py : trois liens vers des articles proches, en
   fin de lecture. Discret, mais c'est le seul chemin qu'un lecteur arrive par
   un moteur avait vers le reste du site. */
.he-lies { margin: 2.5rem 0 0; padding: 1.2rem 1.4rem; background: #f6f7f6;
  border-left: 3px solid #cfd6cf; border-radius: 6px; }
.he-lies h2 { font-size: 1.05rem; margin: 0 0 .3rem; }
.he-lies p { font-size: .9rem; color: #6b6b6b; margin: 0 0 .8rem; }
.he-lies ul { margin: 0; padding-left: 1.1rem; }
.he-lies li { margin: .35rem 0; }