/* ==========================================================================
   global.css - Styles globaux, layout, header, footer, composants reutilisables
   ========================================================================== */

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */
body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  letter-spacing: -0.01em;
  /* Repartit les mots sur plusieurs lignes de facon equilibree plutot que
     de laisser un mot seul, orphelin, sur la derniere ligne. */
  text-wrap: balance;
}

p {
  color: var(--color-text-soft);
}

strong {
  color: var(--color-text);
  font-weight: var(--fw-semibold);
}

/* --------------------------------------------------------------------------
   Layout utilitaires
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: clamp(3.5rem, 9vw, var(--space-3xl));
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-bg);
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--color-bg);
}

.section--dark p {
  color: rgba(247, 245, 240, 0.72);
}

/* Sur fond sombre, l'accent profond ne contraste pas assez : on passe
   sur la declinaison claire prevue pour ces contextes. */
.section--dark .eyebrow {
  color: var(--color-accent-light);
}

/* --------------------------------------------------------------------------
   Elements de titrage
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: var(--fw-light);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent-text);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--fs-2xl);
  line-height: 1.08;
  margin-bottom: var(--space-md);
}

.section-lead {
  font-size: var(--fs-md);
  color: var(--color-text-soft);
  max-width: 70ch;
  /* Evite qu'un mot isole se retrouve seul sur la derniere ligne */
  text-wrap: balance;
}

.section-header {
  margin-bottom: clamp(2rem, 5vw, var(--space-xl));
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-lead {
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   Boutons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  font-family: var(--font-heading);
  font-weight: var(--fw-medium);
  font-size: var(--fs-sm);
  line-height: 1;
  padding: 0.95em 1.8em;
  border-radius: var(--radius-pill);
  transition: background-color var(--transition-base),
    color var(--transition-base), transform var(--transition-fast),
    box-shadow var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background-color: var(--color-accent-text);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background-color: var(--color-accent-text-hover);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-accent-text);
  color: var(--color-accent-text);
}

.btn--light {
  background-color: var(--color-bg);
  color: var(--color-text);
}

.btn--light:hover {
  background-color: var(--color-accent-text);
  color: var(--color-text);
}

.btn--ghost-light {
  background-color: transparent;
  color: var(--color-bg);
  border: 1.5px solid rgba(247, 245, 240, 0.3);
}

.btn--ghost-light:hover {
  border-color: var(--color-bg);
  background-color: rgba(247, 245, 240, 0.08);
}

.btn__arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* Lien texte avec fleche */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-family: var(--font-heading);
  font-weight: var(--fw-medium);
  font-size: var(--fs-sm);
  color: var(--color-accent-text);
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.text-link:hover {
  color: var(--color-accent-text-hover);
  gap: 0.75em;
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-base),
    border-color var(--transition-base), box-shadow var(--transition-base),
    backdrop-filter var(--transition-base);
}

/* Etat par defaut : header transparent, pose sur le hero sombre de chaque
   page (toutes les pages commencent par une section .hero ou .page-hero
   sombre). Bascule vers la version claire/opaque des que .is-scrolled
   s'active (voir nav.js). */
.header.is-scrolled {
  background-color: rgba(246, 245, 241, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header .brand,
.header .nav-toggle__bar {
  transition: color var(--transition-base), background-color var(--transition-base);
}

.header:not(.is-scrolled) .brand {
  color: var(--color-bg);
}

.header:not(.is-scrolled) .brand span {
  color: var(--color-accent-light);
}

.header:not(.is-scrolled) .nav-toggle__bar {
  background-color: var(--color-bg);
}

/* Les liens de navigation ne passent en blanc que sur la nav desktop :
   en dessous de 1025px, .nav devient le panneau mobile a fond clair, qui
   doit garder un texte sombre quel que soit l'etat du header. */
@media (min-width: 1025px) {
  .header:not(.is-scrolled) .nav__link {
    color: var(--color-bg);
  }

  .header:not(.is-scrolled) .nav__link:hover,
  .header:not(.is-scrolled) .nav__link.is-active {
    color: var(--color-accent-light);
  }

  .header:not(.is-scrolled) .nav__link::after {
    background-color: var(--color-accent-light);
  }
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  font-size: 1.05rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text);
  z-index: var(--z-menu);
}

.brand span {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2.2rem);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.nav__link {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  padding-block: 0.35rem;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-accent-text);
}

.nav__link.is-active::after,
.nav__link:hover::after {
  transform: scaleX(1);
}

.nav__cta {
  margin-left: 0.5rem;
}

/* Bouton hamburger */
.nav-toggle {
  display: none;
  position: relative;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  z-index: var(--z-menu-toggle);
}

.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  margin-inline: auto;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Overlay mobile */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  opacity: 0;
  z-index: var(--z-overlay);
  transition: opacity var(--transition-base);
}

.nav-overlay.is-visible {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--color-dark);
  color: rgba(247, 245, 240, 0.72);
  padding-block: clamp(3rem, 7vw, var(--space-2xl)) var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(247, 245, 240, 0.1);
}

.footer__brand {
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  font-size: 1.15rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-bg);
  margin-bottom: var(--space-sm);
}

.footer__brand span {
  color: var(--color-accent-light);
}

.footer__tagline {
  max-width: 34ch;
  font-size: var(--fs-sm);
  color: rgba(247, 245, 240, 0.6);
}

.footer__col-title {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-bg);
  margin-bottom: var(--space-md);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer__links a,
.footer__contact a,
.footer__contact li {
  font-size: var(--fs-sm);
  color: rgba(247, 245, 240, 0.68);
  transition: color var(--transition-fast);
}

.footer__links a:hover,
.footer__contact a:hover {
  color: var(--color-accent-light);
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer__socials {
  display: flex;
  gap: 0.75rem;
  margin-top: var(--space-md);
}

.footer__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(247, 245, 240, 0.18);
  color: rgba(247, 245, 240, 0.8);
  transition: background-color var(--transition-fast),
    border-color var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast);
}

.footer__social:hover {
  background-color: var(--color-accent-text);
  border-color: var(--color-accent-text);
  color: var(--color-text);
  transform: translateY(-2px);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-lg);
  font-size: var(--fs-xs);
  color: rgba(247, 245, 240, 0.5);
}

.footer__bottom a {
  color: rgba(247, 245, 240, 0.6);
  transition: color var(--transition-fast);
}

.footer__bottom a:hover {
  color: var(--color-accent-light);
}

/* --------------------------------------------------------------------------
   Animations au scroll (IntersectionObserver)
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal[data-delay='1'] {
  transition-delay: 0.1s;
}

.reveal[data-delay='2'] {
  transition-delay: 0.2s;
}

.reveal[data-delay='3'] {
  transition-delay: 0.3s;
}

.reveal[data-delay='4'] {
  transition-delay: 0.4s;
}

.reveal[data-delay='5'] {
  transition-delay: 0.5s;
}

.reveal[data-delay='6'] {
  transition-delay: 0.6s;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   Notice (bandeau d'information contextuelle : notes de page, feedback
   de formulaire...). Composant generique partage plutot que duplique.
   -------------------------------------------------------------------------- */
.notice {
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-accent-tint);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--color-accent-text);
}

/* --------------------------------------------------------------------------
   Etiquette de contenu a completer (mentions legales, certifications, parcours...)
   -------------------------------------------------------------------------- */
.legal__placeholder {
  display: inline-block;
  padding: 0.1em 0.5em;
  background-color: var(--color-accent-tint);
  border-radius: var(--radius-sm);
  color: var(--color-accent-hover);
  font-size: 0.9em;
}

/* --------------------------------------------------------------------------
   Bloc media reutilisable (placeholder neutre en attendant les visuels)
   -------------------------------------------------------------------------- */
.media-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: linear-gradient(150deg, #EFEAE1 0%, #DCD2BE 100%);
}

.media-frame--dark {
  background: linear-gradient(150deg, #18181B 0%, #3F3F46 100%);
  box-shadow: none;
}

/* Etiquette de placeholder au centre du bloc media */
.media-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: rgba(26, 26, 26, 0.4);
}

.media-frame--dark .media-placeholder {
  color: rgba(247, 245, 240, 0.4);
}

/* --------------------------------------------------------------------------
   Bouton WhatsApp flottant (persistant sur toutes les pages)
   -------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: var(--z-float);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-float:hover {
  transform: translateY(-3px);
}

.whatsapp-float img {
  width: 100%;
  height: 100%;
  filter: drop-shadow(var(--shadow-lg));
}

.whatsapp-float:hover img {
  filter: drop-shadow(0 24px 46px rgba(26, 26, 26, 0.22));
}

@media (max-width: 640px) {
  .whatsapp-float {
    right: var(--space-sm);
    bottom: var(--space-sm);
    width: 50px;
    height: 50px;
  }
}

/* --------------------------------------------------------------------------
   Accessibilite
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: var(--z-menu);
  background-color: var(--color-accent);
  color: var(--color-text);
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--color-accent-text);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Responsive - Navigation mobile
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-toggle {
    display: flex;
  }

  .nav-overlay {
    display: block;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(84vw, 360px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    padding: calc(var(--header-height) + var(--space-lg)) var(--space-lg)
      var(--space-lg);
    background-color: var(--color-bg-alt);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: var(--z-menu);
    overflow-y: auto;
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    width: 100%;
  }

  .nav__item {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link {
    display: block;
    width: 100%;
    padding-block: 1.1rem;
    font-size: var(--fs-md);
  }

  .nav__link::after {
    display: none;
  }

  .nav__cta {
    margin-left: 0;
    margin-top: var(--space-lg);
    width: 100%;
  }
}

@media (max-width: 720px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}