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

:root {
  --color-dark-teal:  #3d6e6e;
  --color-light-teal: #b5d0d0;
  --color-mid-teal:   #6a9596;
  --font-title:       'Montserrat', sans-serif;
  --font-serif:       'Cormorant Garamond', serif;
}

html, body {
  height: 100%;
  background-color: #ffffff;
  color: var(--color-dark-teal);
}

/* ============================
   HERO SECTION
============================ */
.hero {
  min-height: 90dvh;          /* Laisse la section s'adapter sans imposer un écran complet vide en bas */
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 6rem 1.5rem 2rem 1.5rem; /* 6rem correspond à la taille de la navbar + un tout petit espace */
  position: relative;
  overflow: hidden; /* Empêche les images sur les bords de créer un scroll horizontal */
}

/* --- Images décoratives (côtés gauche et droit) --- */
.hero__img-gauche,
.hero__img-droite {
  position: absolute;
  bottom: 8%; /* Remonté un tout petit peu */
  width: 500px; /* Un peu plus grand */
  max-width: 35vw;
  z-index: 1;
  pointer-events: none;
  opacity: 0.95;
  mix-blend-mode: multiply; /* Rend le fond blanc des JPG transparent ! */
}

.hero__img-gauche {
  left: -15%; /* Poussé vers l'extérieur pour laisser de la place au texte */
}

.hero__img-droite {
  right: -15%; /* Poussé vers l'extérieur pour laisser de la place au texte */
}

@media (max-width: 1300px) {
  .hero__img-gauche,
  .hero__img-droite {
    opacity: 0.15; /* Très discret pour ne pas gêner la lecture */
  }
}

@media (max-width: 768px) {
  .hero__img-gauche,
  .hero__img-droite {
    display: none; /* Totalement masquées sur téléphone pour plus de clarté */
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  text-align: center;
}

/* LOGO IMAGE */
.hero__logo {
  width: min(260px, 70vw);     /* s'adapte au téléphone */
  height: auto;
}

/* TITRE OSC + ILLA */
.hero__title {
  font-family: var(--font-title);
  font-size: clamp(3rem, 16vw, 7rem); /* responsive */
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1;
}

.hero__osc {
  color: var(--color-dark-teal);
}

.hero__illa {
  color: var(--color-light-teal);
}

.hero__huge-text {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 5vw, 3.5rem); /* Grande taille pour correspondre au style du titre tout en restant lisible sur une phrase longue */
  font-weight: 900; /* Ultra gras */
  letter-spacing: 0.02em;
  line-height: 1.15;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  max-width: 90vw;
}

/* TAGLINE */
.hero__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1rem, 4.5vw, 1.4rem);
  color: var(--color-mid-teal);
  max-width: 36ch;
  line-height: 1.5;
}

/* DESCRIPTION */
.hero__description {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1rem, 4.5vw, 1.4rem);
  color: var(--color-dark-teal);
  max-width: 75ch; /* Largeur contrainte comme indiqué par les barres jaunes */
  line-height: 1.6;
  margin-top: 0.8rem;
  font-weight: 400; /* Remis en normal */
  opacity: 0.9;
}

/* HERO CTA BUTTON */
.hero__cta {
  font-family: var(--font-title);
  font-size: clamp(0.85rem, 2.5vw, 1rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: #ffffff;
  background: var(--color-dark-teal);
  padding: 0.9rem 2.2rem;
  border-radius: 2rem;
  margin-top: 1.2rem;
  display: inline-block;
  box-shadow: 0 4px 15px rgba(61, 110, 110, 0.25);
  transition: all 0.25s ease;
}

.hero__cta:hover {
  background: var(--color-mid-teal);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(61, 110, 110, 0.35);
}

/* HERO COUNTDOWN */
.hero__countdown-wrapper {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}

.hero__countdown-sub {
  font-family: var(--font-title);
  font-size: clamp(0.75rem, 2vw, 0.85rem);
  font-weight: 700;
  color: var(--color-mid-teal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============================
   SECTION 2 — ACCROCHE
============================ */
.accroche {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start; /* Aligné en haut comme l'exemple Slack */
  padding-top: 8vh; /* Remonté suite à la demande */

  background-image: url('assets/images/bg-hero2.jpg');
  background-size: cover;
  background-position: center;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Voile sombre pour texte blanc */
.accroche__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5); /* Assombri pour faire ressortir le blanc */
  z-index: 0;
}

.accroche__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  width: 100%;
}

.accroche__title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.5vw, 2.4rem);
  letter-spacing: 0.02em;
  color: #ffffff;
  line-height: 1.35;
  max-width: 50ch;
}

.accroche__description {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.2rem, 5vw, 1.8rem); /* Taille augmentée */
  color: #ffffff;
  line-height: 1.6;
  max-width: 75ch;
  opacity: 0.9;
}

/* ============================
   INTERACTIVE SHOWCASE
============================ */
.interactive-showcase {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  width: 100%;
  max-width: 1100px;
  margin-top: 3rem;
  text-align: left;
}

@media (min-width: 768px) {
  .interactive-showcase {
    flex-direction: row;
    gap: 4rem;
    align-items: center;
  }
}

.is__tabs {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.is__tab {
  background: transparent;
  border: none;
  text-align: left;
  padding: 1.2rem 1.5rem;
  border-radius: 1rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease, opacity 0.3s ease;
  color: #ffffff;
  opacity: 0.75; /* Augmenté pour être plus visible au repos */
}

.is__tab:hover {
  background: rgba(255, 255, 255, 0.05);
  opacity: 0.8;
}

.is__tab--active {
  background: rgba(255, 255, 255, 0.15);
  opacity: 1;
}

.is__tab--active:hover {
  background: rgba(255, 255, 255, 0.15);
  opacity: 1;
}

.is__tab h3 {
  font-family: var(--font-title);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}

.is__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  background: var(--color-light-teal);
  width: 0%;
}

.is__tab--active .is__progress {
  animation: progressAnim 8s linear forwards; /* 8s = DURATION du JS */
}

@keyframes progressAnim {
  from { width: 0%; }
  to { width: 100%; }
}

.is__panels {
  flex: 1.2;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 1.5rem;
  padding: 2rem;
  min-height: 150px;
  display: flex;
  align-items: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.is__panel {
  display: none;
  animation: fadeInPanel 0.5s ease;
}

.is__panel--active {
  display: block;
}

.is__panel p {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.5vw, 1.4rem);
  color: #ffffff;
  line-height: 1.7;
  font-style: italic;
  text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5); /* Ombre pour faire ressortir le texte */
}

@keyframes fadeInPanel {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================
   SECTION 3 — USINE (Interactive)
============================ */
.usine {
  background-color: #ffffff;
  padding: 6rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.usine__container {
  width: 100%;
  max-width: 1100px;
}

.usine__title {
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-dark-teal);
  margin-bottom: 2rem;
  text-align: center;
  line-height: 1.35;
}

.usine__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem; /* Réduit l'espacement entre les cartes */
  width: 100%;
  max-width: 950px; /* Restreint la largeur totale pour que les cartes soient moins larges */
  margin: 3rem auto 0 auto;
}

.usine__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.usine__card-img {
  width: 140px;
  height: auto;
  margin-bottom: 1.5rem;
  mix-blend-mode: multiply; /* Rend le fond transparent s'il est pur blanc */
  filter: brightness(1.08) contrast(1.15); /* Force le gris très clair du fond à devenir blanc pur */
}

.usine__card-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.2rem; /* Plus petit */
  color: var(--color-dark-teal);
  margin-bottom: 0.8rem;
}

.usine__card-desc {
  font-family: var(--font-text);
  font-size: 0.95rem; /* Plus petit */
  color: var(--color-mid-teal);
  line-height: 1.5;
}

@media (max-width: 992px) {
  .usine__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}
/* ============================
   SECTION 4 — MODULES
============================ */
.modules {
  background: #ffffff;
  padding: 3rem 1.5rem 4rem;
}

/* OSCILLA en haut à droite */
.modules__header {
  text-align: right;
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 10vw, 6rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 3rem;
  line-height: 1;
}

.modules__osc  { color: var(--color-dark-teal); }
.modules__illa { color: var(--color-light-teal); }

/* CASES ALIGNÉES (FOND OSC, ÉCRITURE ILLA) */
.modules__tags-container {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
  margin-top: 1rem;
}

@media (max-width: 850px) {
  .modules__tags-container {
    flex-direction: column;
    gap: 1rem;
  }
}

.modules__tag {
  background-color: var(--color-dark-teal); /* Couleur OSC */
  color: #ffffff; /* Écriture en blanc pur */
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(0.85rem, 1.8vw, 1.05rem);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 1.3rem 1.8rem;
  border-radius: 0.8rem;
  text-align: center;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(61, 110, 110, 0.15);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.modules__tag:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(61, 110, 110, 0.25);
}

/* GRILLE 3 COLONNES */
.modules__grid {
  display: grid;
  grid-template-columns: 1fr;   /* mobile : 1 colonne */
  gap: 3rem;
}

@media (min-width: 768px) {
  .modules__grid {
    grid-template-columns: repeat(3, 1fr);  /* desktop : 3 colonnes */
    gap: 2rem;
  }
}

/* TITRE DE CHAQUE MODULE */
.modules__title {
  font-family: var(--font-title);
  font-size: clamp(0.75rem, 2.5vw, 0.9rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-dark-teal);
  margin-bottom: 1rem;
  line-height: 1.3;
}

/* PLACEHOLDER VIDÉO */
.modules__video-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--color-light-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  opacity: 0.4;
}

.modules__video-placeholder span {
  font-family: var(--font-title);
  font-size: 0.8rem;
  color: var(--color-dark-teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* DESCRIPTION */
.modules__desc {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(0.9rem, 3vw, 1rem);
  color: var(--color-mid-teal);
  line-height: 1.6;
}
/* ============================
   SECTION 5 — PHASE BÊTA
============================ */
.beta {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100dvh;
}

@media (min-width: 768px) {
  .beta {
    grid-template-columns: 1fr 1fr;
  }
}

/* GAUCHE */
.beta__left {
  background: linear-gradient(145deg, var(--color-dark-teal), var(--color-light-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  min-height: 60dvh;
}

/* CARTE */
.beta__card {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 2rem;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  max-width: 420px;
  width: 100%;
}

/* BANNIÈRE COMPTE À REBOURS (SUR FOND BLANC) */
.countdown-banner {
  margin-top: 4.5rem;
  background: transparent;
  padding: 1rem 1rem 2rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  width: 100%;
}

.countdown-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.countdown-box {
  background: var(--color-dark-teal); /* Fond foncé OSC */
  border: 1px solid var(--color-light-teal); /* Bordure ILLA */
  border-radius: 0.8rem;
  padding: 0.9rem 1.4rem;
  min-width: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(61, 110, 110, 0.2);
}

.countdown-num {
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
}

.countdown-txt {
  font-family: var(--font-title);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--color-light-teal); /* Couleur ILLA */
  letter-spacing: 0.12em;
  margin-top: 0.4rem;
  text-transform: uppercase;
}

.countdown-banner__text {
  font-family: var(--font-title);
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 700;
  color: var(--color-dark-teal); /* Texte foncé sur la page blanche */
  max-width: 650px;
  line-height: 1.4;
}

.countdown-banner__btn {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #ffffff;
  background-color: var(--color-dark-teal);
  padding: 0.9rem 2.2rem;
  border-radius: 2rem;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 4px 15px rgba(61, 110, 110, 0.25);
  transition: all 0.25s ease;
}

.countdown-banner__btn:hover {
  background-color: var(--color-mid-teal);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(61, 110, 110, 0.35);
}

/* TITRE PRINCIPAL */
.beta__titre {
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.25;
}

/* SOUS-TITRE */
.beta__sous-titre {
  font-family: var(--font-title);
  font-size: clamp(0.65rem, 2vw, 0.8rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
}

/* BOUTON OPTION B — outline blanc */
.beta__btn {
  display: inline-block;
  align-self: flex-start;
  background-color: transparent;
  border: 2px solid #ffffff;
  color: #ffffff;
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.75rem 1.8rem;
  border-radius: 0.4rem;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease;
}

.beta__btn:hover {
  background-color: #ffffff;
  color: var(--color-dark-teal);
}

/* ============================
   FORMULAIRE LISTE D'ATTENTE
============================ */
.beta__card--waitlist {
  max-width: 600px;
  width: 100%;
  padding: 2.8rem 2.2rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.waitlist-card__header {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.waitlist-card__badge {
  font-family: var(--font-title);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  background: var(--color-dark-teal);
  color: var(--color-light-teal);
  padding: 0.3rem 0.85rem;
  border-radius: 2rem;
  align-self: flex-start;
  display: inline-block;
}

.waitlist-card__title {
  font-family: var(--font-title);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
}

.waitlist-card__desc {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.5;
}

.waitlist-form {
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}

.waitlist-form__grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 520px) {
  .waitlist-form__grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.waitlist-form__group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.waitlist-label {
  font-family: var(--font-title);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #ffffff;
}

.waitlist-label .required {
  color: var(--color-light-teal);
}

.waitlist-help {
  font-family: var(--font-title);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 0.2rem;
  line-height: 1.4;
}

.waitlist-input,
.waitlist-select {
  width: 100%;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 0.6rem;
  padding: 0.8rem 1rem;
  color: #ffffff;
  font-family: var(--font-title);
  font-size: 0.88rem;
  outline: none;
  transition: all 0.2s ease;
}

.waitlist-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.waitlist-input:focus,
.waitlist-select:focus {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.26);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.15);
}

.waitlist-select option {
  background-color: #ffffff;
  color: var(--color-dark-teal);
  font-family: var(--font-title);
  font-size: 0.9rem;
}

/* LISTE DE CASES À COCHER */
.waitlist-checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.2rem;
}

.waitlist-checkbox-item {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  cursor: pointer;
  font-family: var(--font-title);
  font-size: 0.82rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.92);
  user-select: none;
}

.waitlist-checkbox-item input[type="checkbox"] {
  display: none;
}

.waitlist-custom-check {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 4px;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition: all 0.2s ease;
}

.waitlist-checkbox-item input[type="checkbox"]:checked + .waitlist-custom-check {
  background: var(--color-light-teal);
  border-color: var(--color-light-teal);
}

.waitlist-checkbox-item input[type="checkbox"]:checked + .waitlist-custom-check::after {
  content: "✓";
  font-size: 12px;
  font-weight: 800;
  color: var(--color-dark-teal);
}

/* BOUTONS RADIOS */
.waitlist-radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-top: 0.2rem;
}

@media (min-width: 480px) {
  .waitlist-radio-group {
    flex-direction: row;
    gap: 1.5rem;
  }
}

.waitlist-radio-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-family: var(--font-title);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.92);
  user-select: none;
}

.waitlist-radio-item input[type="radio"] {
  display: none;
}

.waitlist-custom-radio {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.waitlist-radio-item input[type="radio"]:checked + .waitlist-custom-radio {
  border-color: #ffffff;
  background: #ffffff;
}

.waitlist-radio-item input[type="radio"]:checked + .waitlist-custom-radio::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-dark-teal);
}

/* BOUTON SOUMETTRE */
.waitlist-submit-btn {
  background-color: #ffffff;
  color: var(--color-dark-teal);
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 1.05rem 2rem;
  border: none;
  border-radius: 2rem;
  cursor: pointer;
  margin-top: 0.6rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: all 0.25s ease;
  text-align: center;
}

.waitlist-submit-btn:hover {
  background-color: var(--color-light-teal);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* MESSAGE CONFIRMATION SUCCÈS */
.waitlist-success {
  background: rgba(255, 255, 255, 0.16);
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  border-radius: 1.5rem;
  padding: 2.8rem 1.8rem;
  text-align: center;
  margin-top: 1rem;
  animation: fadeIn 0.4s ease;
}

.waitlist-success__icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #ffffff;
  color: var(--color-dark-teal);
  font-size: 1.8rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.waitlist-success__title {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.6rem;
}

.waitlist-success__desc {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  text-align: center;
  line-height: 1.5;
}

/* DROITE — photo */
.beta__right {
  background-image: url('assets/images/bg-beta.jpg');
  background-size: cover;
  background-position: center;
  min-height: 50dvh;
}
/* ============================
   FOOTER
============================ */
.footer {
  background-color: #fcfcfc;
  border-top: 1px solid rgba(181, 208, 208, 0.4);
  padding: 4rem 1.5rem 2rem;
  color: var(--color-dark-teal);
}

.footer__container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

/* TOP: Marque */
.footer__top {
  display: flex;
  align-items: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.footer__logo-img {
  height: 32px;
  width: auto;
}

.footer__brand span {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.footer__osc { color: var(--color-dark-teal); }
.footer__illa { color: var(--color-light-teal); margin-left: -2px; }

/* GRID DE LIENS */
.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 500px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .footer__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer__col-title {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-dark-teal);
  margin-bottom: 0.5rem;
}

.footer__link {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-mid-teal);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer__link:hover {
  color: var(--color-dark-teal);
}

/* BOTTOM: Copyright */
.footer__bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(181, 208, 208, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  font-family: var(--font-title);
  font-size: 0.75rem;
  color: var(--color-mid-teal);
}

/* ============================
   NAVBAR
============================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between; /* Par défaut, espacé (pour mobile) */
  padding: 0.75rem 1.2rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(181, 208, 208, 0.3);
  transition: all 0.3s ease;
}

@media (min-width: 800px) {
  .navbar {
    justify-content: center; /* Centré sur les écrans plus larges */
    gap: clamp(1.5rem, 5vw, 4rem); /* Espace adaptatif selon la taille de l'écran */
  }
}

/* LOGO + OSCILLA groupés */
.navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  text-decoration: none;
}

.navbar__logo-img {
  height: 28px;
  width: auto;
}

.navbar__brand span {
  font-family: var(--font-title);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.navbar__osc  { color: var(--color-dark-teal); }
.navbar__illa { color: var(--color-light-teal);
  margin-left: -2px; }

/* LIENS + CTA */
.navbar__links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

/* Liens simples */
.navbar__link {
  font-family: var(--font-title);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--color-dark-teal);
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.navbar__link:hover {
  opacity: 1;
}

/* Bouton CTA */
.navbar__cta {
  font-family: var(--font-title);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: #ffffff;
  background: var(--color-dark-teal);
  padding: 0.55rem 1.2rem;
  border-radius: 2rem;
  transition: background 0.2s ease;
  white-space: nowrap;
}

.navbar__cta:hover {
  background: var(--color-mid-teal);
}

/* SÉLECTEUR DE LANGUE (FR | EN) */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  background: rgba(181, 208, 208, 0.3);
  padding: 0.2rem 0.35rem;
  border-radius: 2rem;
  border: 1px solid rgba(61, 110, 110, 0.25);
  font-family: var(--font-title);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.lang-switch__item {
  color: var(--color-mid-teal);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  border-radius: 1rem;
  transition: all 0.2s ease;
  line-height: 1;
}

.lang-switch__item:hover {
  color: var(--color-dark-teal);
}

.lang-switch__item.is-active {
  background: var(--color-dark-teal);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(18, 42, 42, 0.18);
}

.lang-switch__sep {
  color: rgba(61, 110, 110, 0.4);
  font-size: 0.65rem;
  user-select: none;
}

/* MOBILE — masque les liens texte, garde le CTA et le sélecteur */
@media (max-width: 800px) {
  .navbar__link {
    display: none;
  }
}

@media (max-width: 640px) {
  .navbar__cta {
    font-size: 0.65rem;
    padding: 0.5rem 0.8rem;
  }

  .lang-switch {
    padding: 0.15rem 0.25rem;
    font-size: 0.65rem;
  }

  .lang-switch__item {
    padding: 0.2rem 0.35rem;
  }

  .navbar__brand span {
    font-size: 1rem;
  }

  .navbar__logo-img {
    height: 22px;
  }
}

/* ============================
   USE CASE PAGES
============================ */
.usecase-hero {
  padding: 8rem 1.5rem 4rem;
  background-color: #f9fbfb;
  text-align: center;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.usecase-hero__title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--color-dark-teal);
  margin-bottom: 1.5rem;
  font-weight: 800;
}
.usecase-hero__desc {
  font-family: var(--font-text);
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--color-mid-teal);
  max-width: 800px;
  line-height: 1.6;
}

/* ==============================================
   OPTION A : PANNEAU DÉROULANT TOUT COMPRENDRE
   ============================================== */

/* BOUTON DANS LA NAVBAR */
.navbar__link--comprendre {
  background: none;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0;
  color: var(--color-dark-teal);
  position: relative;
}

.comprendre-chevron {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.navbar__link--comprendre.is-active {
  opacity: 1;
  color: var(--color-dark-teal);
}

.navbar__link--comprendre.is-active .comprendre-chevron {
  transform: rotate(180deg);
}

/* FOND FLOU ARRIÈRE-PLAN (OVERLAY) */
.comprendre-overlay {
  position: fixed;
  inset: 0;
  background: rgba(18, 42, 42, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.comprendre-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* PANNEAU QUI SE GREFFE PAR-DESSUS DEPUIS LE HAUT */
.comprendre-panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  background: #ffffff;
  border-bottom: 2px solid var(--color-dark-teal);
  box-shadow: 0 25px 50px rgba(18, 42, 42, 0.25);
  z-index: 1100;
  transform: translateY(-100%);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 2.5rem 1.5rem 3rem;
}

.comprendre-panel.is-open {
  transform: translateY(0);
}

.comprendre-panel__inner {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

/* BOUTON FERMER (✕) */
.comprendre-panel__close {
  position: absolute;
  top: -0.5rem;
  right: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(61, 110, 110, 0.2);
  background: #ffffff;
  color: var(--color-dark-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.comprendre-panel__close:hover {
  background: var(--color-dark-teal);
  color: #ffffff;
  transform: scale(1.05);
}

/* EN-TÊTE DU PANNEAU */
.comprendre-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.comprendre-badge {
  font-family: var(--font-title);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  background: var(--color-dark-teal);
  color: var(--color-light-teal);
  padding: 0.35rem 1rem;
  border-radius: 2rem;
  display: inline-block;
}

.comprendre-title {
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 3.5vw, 2.3rem);
  font-weight: 800;
  color: var(--color-dark-teal);
  line-height: 1.2;
}

.comprendre-intro {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-mid-teal);
  line-height: 1.55;
}

/* GRILLE DES 6 CARTES (FONDAMENTAUX & OSCILLA) */
.comprendre-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 680px) {
  .comprendre-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .comprendre-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.comprendre-card {
  background: #fbfdfd;
  border: 1px solid rgba(181, 208, 208, 0.45);
  border-radius: 1rem;
  padding: 1.8rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  position: relative;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.comprendre-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-dark-teal);
  box-shadow: 0 10px 25px rgba(61, 110, 110, 0.1);
}

.comprendre-card__tag {
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--color-light-teal);
  letter-spacing: 0.05em;
}

.comprendre-card__title {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-dark-teal);
  letter-spacing: 0.02em;
}

.comprendre-card__desc {
  font-family: var(--font-title);
  font-size: 0.88rem;
  line-height: 1.65;
  color: #334e4e;
}

/* PIED DU PANNEAU */
.comprendre-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(181, 208, 208, 0.35);
  text-align: center;
}

.comprendre-footer__text {
  font-family: var(--font-title);
  font-size: 0.9rem;
  color: var(--color-mid-teal);
  line-height: 1.5;
}

.comprendre-footer__text span {
  font-weight: 700;
  color: var(--color-dark-teal);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.comprendre-footer__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-dark-teal);
  color: #ffffff;
  padding: 0.75rem 1.8rem;
  border-radius: 2rem;
  font-family: var(--font-title);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.25s ease;
}

.comprendre-footer__cta:hover {
  background: #2a4c4c;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(61, 110, 110, 0.25);
}