/* ===== IAassiste – Charte graphique (CDC) ===== */
/* Palette : violet/bleu foncé, accents rouge/fuchsia. Accessibilité : contrastes, tailles. */

:root {
  /* Couleurs principales */
  --color-bg: #0d0f1a;
  --color-surface: #15182e;
  --color-surface-alt: #1a1f3a;
  --color-text: #e8eaf0;
  --color-text-muted: #9ca3b8;
  --color-border: rgba(255, 255, 255, 0.08);

  /* Accents (CTA, liens) */
  --color-accent: #a855f7;
  --color-accent-hover: #c084fc;
  --color-cta: #ec4899;
  --color-cta-hover: #f472b6;

  /* Typo */
  --font-sans: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --font-display: "Space Grotesk", var(--font-sans);
  --text-base: 1rem;
  --line-height: 1.6;

  /* Spacing & radius */
  --radius: 12px;
  --space: 1.5rem;
  --header-h: 72px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Utilitaires accessibilité */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space);
  padding: 0.75rem 1rem;
  background: var(--color-cta);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  z-index: 200;
  transition: top 0.2s;
}
.skip-link:focus { top: var(--space); }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 15, 26, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space) 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space);
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--color-accent); }

.nav-toggle {
  display: none;
  width: 32px;
  height: 24px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--color-text);
}

/* Boutons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
  border: none;
  font-size: 1rem;
}
.btn--primary,
a.btn--primary {
  background: var(--color-cta);
  color: #fff !important;
}
.btn--primary:hover,
a.btn--primary:hover {
  background: var(--color-cta-hover);
  color: #fff !important;
}
.btn--secondary {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--secondary:hover { background: var(--color-surface); border-color: var(--color-accent); }
.btn--nav {
  color: var(--color-cta);
  background: transparent;
}
.btn--nav:hover { color: var(--color-cta-hover); }
.btn--sm { padding: 0.5rem 1rem; font-size: 0.9rem; }

/* Hero */
.hero {
  padding: 4rem 1.5rem 5rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.hero__lead {
  color: var(--color-text-muted);
  margin: 0 0 2rem;
  font-size: 1.125rem;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Avantages */
.section { max-width: 1200px; margin: 0 auto; padding: 3rem 1.5rem; }
.section--avantages { background: var(--color-surface); }
.section--clients { padding-top: 2rem; }

.avantages {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space);
}

.avantage {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}
.avantage__icon { font-size: 2rem; display: block; margin-bottom: 0.5rem; }
.avantage h3 { font-size: 1.125rem; margin: 0 0 0.5rem; }
.avantage p { color: var(--color-text-muted); margin: 0; font-size: 0.9375rem; }

/* Logos clients */
.section--clients {
  background: var(--color-surface);
  padding: 2.5rem 1.5rem;
}
.section--clients h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 1.5rem;
  text-align: center;
  color: var(--color-text);
}
.logos-clients {
  max-width: 1000px;
  margin: 0 auto;
  overflow: hidden;
  white-space: nowrap;
}
.logos-clients__track {
  display: inline-flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  gap: 1.5rem;
  width: max-content;
  animation: clients-marquee 28s linear infinite;
}
.logos-clients:hover .logos-clients__track {
  animation-play-state: paused;
}
@keyframes clients-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.logo-client {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  text-decoration: none;
  color: #ffffff;
  font-size: 0.8125rem;
  font-weight: 500;
  text-align: center;
  padding: 1.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: var(--color-cta);
  min-height: 100px;
  min-width: 190px;
  flex: 0 0 auto;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.logo-client:hover {
  color: #ffffff;
  border-color: transparent;
  background: var(--color-cta-hover);
}
.logo-client span {
  display: block;
  width: 100%;
  max-width: 100%;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.logo-client img {
  max-width: 100px;
  max-height: 40px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(0.95);
}
.logo-client img[src=""],
.logo-client img:not([src]) {
  display: none;
}
@media (max-width: 768px) {
  .logo-client {
    min-width: 170px;
  }
}

/* Page interne (titre + contenu) */
.page-header {
  padding: 2rem 1.5rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.page-header h1 {
  max-width: 1200px;
  margin: 0 auto;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}
.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}
.page-content h2 { font-size: 1.25rem; margin: 2rem 0 0.75rem; }
.page-content p { margin: 0 0 1rem; color: var(--color-text-muted); }
.page-content a { color: var(--color-accent); }
.page-content a:hover { color: var(--color-accent-hover); }
/* Texte blanc dans les boutons CTA (primary) du contenu */
.page-content a.btn--primary,
.page-content a.btn--primary:hover {
  color: #fff !important;
}

/* Cartes (solutions, formations) */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space);
}
.card {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.card h3 { margin: 0 0 0.5rem; font-size: 1.125rem; }
.card p { color: var(--color-text-muted); margin: 0 0 1rem; font-size: 0.9375rem; }
.card__quote { font-style: italic; margin-bottom: 1rem !important; }
.card .btn { margin-top: 0.5rem; }

/* Footer */
.footer {
  margin-top: auto;
  padding: 2rem 1.5rem 1.5rem;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  max-width: 1200px;
  margin: 0 auto 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
}

.footer__block h3 { font-size: 1rem; margin: 0 0 0.5rem; }
.footer__block p { margin: 0 0 0.25rem; font-size: 0.9rem; }
.footer__block a { color: var(--color-text-muted); text-decoration: none; }
.footer__block a:hover { color: var(--color-accent); }

.footer__legal {
  grid-column: 1 / -1;
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
}
.footer__legal a { color: var(--color-text-muted); text-decoration: none; }
.footer__legal a:hover { color: var(--color-accent); }

.footer__copy {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Cookie banner (RGPD) */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem 1.5rem;
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  z-index: 150;
}
.cookie-banner p { margin: 0; font-size: 0.9rem; }
.cookie-banner__actions { display: flex; gap: 0.5rem; }
.cookie-banner[hidden] { display: none !important; }

/* Formulaire */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.25rem; font-weight: 500; }
.form-group input,
.form-group textarea {
  width: 100%;
  max-width: 400px;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-consent { margin: 1rem 0; font-size: 0.9rem; }
.form-consent input { margin-right: 0.5rem; }

/* FAQ */
.faq-list { list-style: none; padding: 0; margin: 0; }
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-item summary { padding: 1rem 0; cursor: pointer; font-weight: 600; }
.faq-item div { padding-bottom: 1rem; color: var(--color-text-muted); }

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-links.is-open { display: flex; }
  .nav-toggle { display: block; }
  .hero__ctas { flex-direction: column; }
  .btn { width: 100%; max-width: 280px; text-align: center; }
}

/* Bloc Qualiopi (Références) */
@media (max-width: 640px) {
  .qualiopi-block {
    grid-template-columns: 1fr !important;
  }
}

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

/* Texte blanc sur tous les boutons primary (tous états, priorité max) */
.btn--primary,
a.btn--primary,
a.btn--primary:link,
a.btn--primary:visited,
a.btn--primary:hover,
a.btn--primary:focus,
.hero .btn--primary,
.hero a.btn--primary,
.page-content .btn--primary,
.page-content a.btn--primary {
  color: #ffffff !important;
}