/* ================================================
   Kobalt Photo — CSS partagé entre toutes les pages
   Variables · Reset · Nav · Footer · Boutons · Transitions
   Auto-généré — ne pas modifier manuellement
================================================ */

/* ===========================
   Variables globales
=========================== */
:root {
  --couleur-fond:       #FAFAF8;
  --couleur-blanc:      #FFFFFF;
  --couleur-blanc-pur:  #FFFFFF;
  --couleur-texte:      #1A1A1A;
  --couleur-texte-sec:  #6B6B6B;
  --couleur-accent:     #1B3A6B;
  --couleur-creme:      #F0EDE6;
  --couleur-temoignages:#E8E6DF;

  --nav-hauteur:        80px;
  --section-v-mobile:   64px;
  --section-v-desktop:  96px;

  --font-titre: 'Cormorant Garamond', serif;
  --font-corps: 'DM Sans', sans-serif;

  --transition: 0.2s ease;
}

/* ===========================
   Accessibilité — utilitaires
=========================== */
.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;
}

:focus-visible {
  outline: 2px solid var(--couleur-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  background-color: var(--couleur-fond);
  color: var(--couleur-texte);
  font-family: var(--font-corps);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* ===========================
   Transition de page — amélioration 11
=========================== */
.page-transition {
  position: fixed;
  inset: 0;
  background-color: var(--couleur-fond);
  z-index: 500;
  opacity: 1;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

.page-transition.is-loaded {
  opacity: 0;
}

.page-transition.is-leaving {
  opacity: 1;
  pointer-events: all;
}



/* ===========================
   Fade-in au scroll
=========================== */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s ease, transform 1s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: none;
}

.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }

/* Stagger entrée des valeurs de l'approche */
.approche__contenu .valeur {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s ease, transform 1s ease;
}

.approche__contenu.is-visible .valeur:nth-child(1) { opacity: 1; transform: none; transition-delay: 0.10s; }
.approche__contenu.is-visible .valeur:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.28s; }
.approche__contenu.is-visible .valeur:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.46s; }

/* ===========================
   Boutons
=========================== */
.btn {
  display: inline-block;
  font-family: var(--font-corps);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 40px;
  border-radius: 2px;
  cursor: pointer;
  transition: opacity var(--transition);
  text-align: center;
}

.btn:hover { opacity: 0.6; }

/* Reset navigateur pour les boutons CTA Calendly */
button.btn,
button.nav__cta {
  -webkit-appearance: none;
  appearance: none;
  font-family: inherit;
  cursor: pointer;
}

/* Les boutons transparents déclarent leur propre background — le reset ne doit pas écraser les fonds colorés */
button.nav__cta,
button.btn--secondaire,
button.btn--blanc {
  background-color: transparent;
}

.btn--primaire {
  background-color: var(--couleur-texte);
  color: var(--couleur-blanc);
  border: 1px solid var(--couleur-texte);
}

.btn--secondaire {
  background-color: transparent;
  color: var(--couleur-texte);
  border: 1px solid var(--couleur-texte);
}

.btn--blanc {
  background-color: transparent;
  color: var(--couleur-blanc);
  border: 1px solid var(--couleur-blanc);
}

/* Bouton hero — ancrage gauche, taille naturelle */
.hero__contenu .btn--blanc {
  font-size: 0.7rem;
  padding: 10px 22px;
  letter-spacing: 0.15em;
  width: fit-content;
}

/* ===========================
   Bouton retour en haut — amélioration 2
=========================== */
.btn-top {
  position: fixed;
  bottom: 32px;
  right: 28px;
  width: 44px;
  height: 44px;
  background-color: var(--couleur-texte);
  color: var(--couleur-blanc);
  border: none;
  border-radius: 2px;
  font-size: 1.1rem;
  cursor: pointer;
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.btn-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.btn-top:hover { opacity: 0.7; }

/* Masquer le bouton retour en haut sur mobile */
@media (max-width: 768px) {
  .btn-top { display: none !important; }
}

/* ===========================
   CTA sticky mobile — amélioration 7
=========================== */
.sticky-mobile {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 149;
  padding: 12px 16px;
  background-color: var(--couleur-fond);
  border-top: 1px solid rgba(26, 26, 26, 0.1);
  display: flex;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}

.sticky-mobile.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.sticky-mobile__btn {
  display: block;
  flex: 1;
  text-align: center;
  font-family: var(--font-corps);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 24px;
  background-color: var(--couleur-texte);
  color: var(--couleur-blanc);
  border-radius: 2px;
}

/* Masqué sur desktop */
@media (min-width: 768px) {
  .sticky-mobile { display: none; }
  /* Rétablir le padding bas du body sur desktop */
  body { padding-bottom: 0; }
}

/* ===========================
   Navigation
=========================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color 0.4s ease;
}

.nav--scrolled {
  background-color: var(--couleur-fond);
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}

/* Logo SVG — alternance blanc/noir selon scroll */
.nav__logo {
  position: relative;
  display: block;
}

.nav__logo-img {
  height: 40px;
  width: auto;
  display: block;
  transition: opacity 0.4s ease;
}

.nav__logo-img--blanc {
  opacity: 1;
  position: relative;
}

.nav__logo-img--noir {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
}

.nav--scrolled .nav__logo-img--blanc { opacity: 0; }
.nav--scrolled .nav__logo-img--noir  { opacity: 1; }

.nav__menu {
  display: none;
  list-style: none;
  gap: 36px;
}

.nav__menu a {
  font-size: 0.8125rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
  transition: opacity var(--transition);
}

.nav--scrolled .nav__menu a {
  color: var(--couleur-texte);
}

.nav__menu a:hover { opacity: 0.5; }

/* CTA Réserver — accent #1B3A6B au scroll */
.nav__cta {
  display: none;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 24px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  color: var(--couleur-blanc);
  border-radius: 2px;
  transition: border-color 0.4s ease, color 0.4s ease, opacity var(--transition);
}

.nav--scrolled .nav__cta {
  border-color: var(--couleur-accent);
  color: var(--couleur-accent);
}

.nav__cta:hover { opacity: 0.6; }

.nav__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: var(--couleur-blanc);
  transition: all 0.3s ease;
}

.nav--scrolled .nav__hamburger span {
  background-color: var(--couleur-texte);
}

.nav__mobile {
  display: flex;
  position: fixed;
  inset: 0;
  background-color: var(--couleur-fond);
  z-index: 201;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  /* Transition d'ouverture */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .28s ease, visibility .28s ease;
}

.nav__mobile.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav__mobile-liste {
  list-style: none;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.nav__mobile-item a {
  font-family: var(--font-titre);
  font-size: clamp(2.25rem, 8vw, 3.75rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  transition: opacity var(--transition);
}

.nav__mobile-item a:hover { opacity: 0.45; }

.nav__mobile-fermer {
  position: absolute;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--couleur-texte);
  padding: 4px;
}

@media (min-width: 768px) {
  .nav__menu { display: flex; }
  .nav__cta { display: block; }
  .nav__hamburger { display: none; }
}

/* Nav claire — pages sans hero sombre (fond ivoire dès le chargement) */
.nav--clair {
  background-color: var(--couleur-fond);
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}
.nav--clair .nav__logo-img--blanc { opacity: 0; }
.nav--clair .nav__logo-img--noir  { opacity: 1; }
.nav--clair .nav__menu a          { color: var(--couleur-texte); }
.nav--clair .nav__cta             { border-color: var(--couleur-accent); color: var(--couleur-accent); }
.nav--clair .nav__hamburger span  { background-color: var(--couleur-texte); }

/* ===========================
   Footer
=========================== */
.footer {
  background-color: var(--couleur-texte);
  color: var(--couleur-blanc);
  padding: 64px 24px 32px;
}

.footer__haut {
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: 1100px;
  margin: 0 auto 48px;
}

.footer__logo {
  height: 36px;
  width: auto;
  display: block;
  margin-bottom: 14px;
}

.footer__tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.58);
  letter-spacing: 0.06em;
}

.footer__nav-titre {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 16px;
}

.footer__liste {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__liste a {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.62);
  transition: opacity var(--transition);
}

.footer__liste a:hover { opacity: 0.38; }

/* Liens réseaux sociaux avec icône */
.footer__liste--social a {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer__bas {
  max-width: 1100px;
  margin: 0 auto;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.52);
}

.footer__bas a {
  color: rgba(255, 255, 255, 0.52);
  transition: opacity var(--transition);
}

.footer__bas a:hover { opacity: 0.6; }

/* Copyright Cormorant italique */
.footer__copyright {
  font-family: var(--font-titre);
  font-style: italic;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

@media (min-width: 768px) {
  .footer__haut {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
  .footer__bas {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  .footer__copyright { text-align: left; }
}