:root {
  --bg-light: #e5e7eb;
  --bg-dark: #1f2937;
  --bg-med: #9ca3af;
  --bg-violeta: #4b107e;
}

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

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

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

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

html {
  box-sizing: border-box;
}
*,
*:before,
*:after {
  box-sizing: inherit;
}

.section_portada_container {
  background: linear-gradient(rgba(5, 7, 12, 0.45), rgba(5, 7, 12, 0.45)),
    url("./img/portadaPigmentarDesk.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  min-height: calc(100vh - 15rem);
  display: flex;
  justify-content: center;
  padding-top: 2rem;
  text-align: center;
}

.section_portada {
  display: block flex;
  flex-direction: column;
  gap: 1.5rem;
  color: white;
  overflow: hidden;
}

@media (min-width: 768px) {
  .section_portada_container {
    justify-content: start;
    padding-left: 3rem;
  }
}

.section_general_container {
  min-height: 400px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.section_container {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  width: min(90%, 70rem);
  overflow: hidden;
  overflow: hidden;
}

.buttons_container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
}

a {
  text-decoration: none;
}

img {
  display: block;
}

.header_container {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 5rem;
  position: sticky;
}

.nav {
  position: sticky;
  padding-top: 0;
  padding-bottom: 0;
}

.nav_container {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  height: 0;
  margin: 0;
  transition: all 0.8s ease;
}

.nav_container_open {
  height: 60vh;
  padding: 2rem 0 2rem 0;
}

.nav_li {
  transition: all 1s;
  overflow: hidden;
}
.nav_li a {
  color: black;
}

@media (min-width: 1024px) {
  .nav {
    height: auto;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }
  .nav_container {
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    height: 2rem;
    padding: 0.5rem 0 0.5rem 0;
  }
}

button {
  cursor: pointer;
}

@media (any-hover: hover) {
  .nav_li:hover {
    box-shadow: 0 0.25rem 0 #374151;
  }
}

.nav_li:active {
  border-radius: 0.5rem;
  box-shadow: 0 0.25rem 0 #374151;
}

.nav_li--active {
  box-shadow: 0 0.25rem 0 #a4a4a4;
}

.footer {
  padding-top: 2rem;
  padding-bottom: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 2rem;
  color: white;
}

.footer_address {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

.btn {
  transition: all 0.8s;
  border-width: 0.313rem;
  border-style: solid;
  border-color: black;
  overflow: hidden;
  text-align: center;
  width: min(90vw, 20rem);
  font-weight: 700;
  padding-top: 0.2rem;
  padding-bottom: 0.2rem;
}

@media (any-hover: hover) {
  .btn:hover {
    border-color: darkgoldenrod;
  }
}

.btn:active {
  border-color: darkgoldenrod;
}

.img_presentacion_container {
  background: rgb(36, 35, 0);
  background: linear-gradient(
    0deg,
    rgba(36, 35, 0, 1) 0%,
    rgba(143, 138, 111, 1) 0%,
    rgba(255, 253, 250, 1) 100%
  );
  width: min(80vw, 80vh, 25rem);
  height: min(80vw, 80vh, 25rem);
  border-radius: 50%;
  border-style: solid;
  border-width: 0.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.img_presentacion_img {
  object-fit: cover;
}

.btn--temario {
  border: none;
  background-color: transparent;
  cursor: pointer;
}

.hidden {
  display: none;
}

.img_tratamiento_container_img {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.img_tratamiento_img {
  width: min(80vw, 80vh, 25rem);
  height: min(80vw, 80vh, 25rem);
  object-fit: cover;
}

.img_tratamiento_container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-top: 2rem;
}

@media (min-width: 1024px) {
  .img_tratamiento_container {
    flex-direction: row;
    justify-content: center;
    align-items: center;
  }
}

.filter_black {
  filter: invert(0%) sepia(5%) saturate(21%) hue-rotate(152deg) brightness(93%)
    contrast(104%);
}