*{
  box-sizing: border-box;
}

body{
  margin: 0;
  font-family: "Open Sans", sans-serif;
  background: #F8FCFB;
  color: #2F3A3D;
  padding-top: 80px; /* évite que le header cache le contenu */
}

/* ===================== */
/* HEADER / MENU */
/* ===================== */

.header{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #61C5AA;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.logo{
  font-weight: 700;
  color: white;
  font-size: 18px;
}

/* MENU */
.nav{
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav a{
  text-decoration: none;
  color: white;
  font-weight: 500;
  font-size: 15px;
  transition: 0.2s;
}

.nav a:hover{
  color: #E8F7F3;
}

/* ===================== */
/* HERO */
/* ===================== */

.hero{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 60px 10%;
  gap: 40px;
}

.hero h1{
  font-family: "Poppins", sans-serif;
  color: #61C5AA;
  font-size: 42px;
  margin-bottom: 10px;
}

.hero h2{
  font-size: 26px;
  font-weight: 600;
  color: #2F3A3D;
  margin-bottom: 20px;
}

.hero p{
  line-height: 1.6;
  font-size: 15px;
}

/* IMAGE HERO */
.hero-right img{
  max-width: 420px;
  height: auto;
}

/* ===================== */
/* SECTIONS */
/* ===================== */

.section{
  padding: 80px 10%;
}

.section h2{
  color: #61C5AA;
  margin-bottom: 30px;
  font-family: "Poppins", sans-serif;
}

/* ===================== */
/* CARTES */
/* ===================== */

.cards{
  display: flex;
  gap: 20px;
}

.card{
  background: white;
  border-radius: 8px;
  overflow: hidden;
  flex: 1;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transition: transform 0.2s;
}

.card:hover{
  transform: translateY(-5px);
}

.card img{
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card h3{
  margin: 15px;
  color: #61C5AA;
  font-size: 16px;
  text-transform: lowercase;
}

.card p{
  margin: 0 15px 15px;
  font-size: 14px;
  line-height: 1.5;
}

/* ===================== */
/* SECTION SPLIT (HORAIRES) */
/* ===================== */

.split{
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.split img{
  width: 100%;
  border-radius: 8px;
}

/* ===================== */
/* RESPONSIVE */
/* ===================== */

@media (max-width: 900px){

  .header{
    flex-direction: column;
    gap: 10px;
    padding: 10px 20px;
  }

  body{
    padding-top: 120px;
  }

  .hero{
    flex-direction: column;
    text-align: center;
  }

  .cards{
    flex-direction: column;
  }

  .split{
    flex-direction: column;
  }

  .hero-right img{
    max-width: 200px;
  }
}