.section_menu {
  position: sticky;
  top: 0;
  width: 100%;
  max-width: 3000px;
  padding: 1rem 0;
  margin:auto;
  font-size: 16px;
  font-family: 'Poppins', sans-serif;
  z-index: 100;
  background: linear-gradient(
  to bottom,
  rgba(235, 255, 235, 0.4) 0%,
  rgba(0, 85, 72, 1) 100%
  );
}
.header_menu {
  width: 90%;
  max-width: 1200px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
/* 📌 LOGO */
.logo_menu {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo_menu img {
  height: clamp(25px, 2.5vw, 50px);
  width: auto;
}
.logo_menu h4 {
  font-size: 1rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #ffffff;
}
/* 🌐 NAVEGACIÓN */
.navigation ul {
  list-style: none;
  display: flex;
  gap: 20px;
}
.navigation ul li {
  position: relative;
}
.navigation ul li a {
  font-size: 1rem;
  color: #ffffff;
  text-decoration: none;
  padding: 10px 10px;
  display: block;
  border-radius: 6px;
  transition: black 0.3s ease;
}
.navigation ul li a:hover {
  color: black;
  font-weight: 500;
}
/* 🔽 SUBMENÚ */
.navigation ul li ul {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  display: none;
  flex-direction: column;
  border-radius: 6px;
  overflow: hidden;
}
.navigation ul li:hover > ul {
  display: flex;
}
.navigation ul li ul li {
  width: 100%;
}
.navigation ul li ul li a {
  font-size: 1rem;
  padding: 12px 15px;
}
.navigation ul li ul li a:hover {
}
/* 📱 MENÚ RESPONSIVE */
#toggle,
.header_menu label {
  display: none;
}
.menu {
  height: 30px;
  width: 40px;
}

/* 📱 ESTILOS PARA MÓVILES Y TABLETS */
@media (max-width: 950px) {
  .header_menu label {
    display: block;
    cursor: pointer;
  }
  .navigation {
    position: absolute;
    top: 100%;
    height: 100vh;
    left: 0;
    width: 100%;
    background: linear-gradient(
    to bottom,
    rgba(235, 255, 235, 0.4) 0%,
    rgba(0, 85, 72, 1) 85%
  );
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 10px 0;
  }
  .navigation ul {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .navigation ul li {
    width: 100%;
    text-align: center;
  }
  .navigation ul li a {
    display: block;
    width: 100%;
    padding: 12px 0;
  }
  .navigation ul li ul {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    display: none;
  }
  .navigation ul li:hover > ul {
    display: flex;
  }
  #toggle:checked ~ .navigation {
    display: flex;
  }
}

@keyframes header_movement {
  from {
    opacity: 1;
    background-color: rgb(0, 0, 0); /* negro opaco */
  }
  to {
    opacity: 0.8;
    background-color: rgb(0, 0, 0); /* totalmente transparente */
  }
}