:root {
  scroll-behavior: smooth;
}

* {
  font-family: "Montserrat", sans-serif;
  box-sizing: border-box;
}

html, body {
  min-height: 100vh;
  min-width: 100%;
  margin: 0;
  padding: 0;
}

h1, h3, p, li {
  font-weight: 200;
}

h1, h3 {
  font-size: 1.6rem;
  line-height: 2.2rem;
}

p, li, a {
  font-size: 0.8rem;
  line-height: 1.6rem;
  hyphens: auto;
}

.hero-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  background-color: rgba(0, 0, 0, 0.50);
  background-blend-mode: darken;
  background-image: url("../images/background-image-6.png");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: left;

  height: 100vh;
  width: 100%;
  padding: 1.5rem;
  text-align: center;
}

.hero-section h1 {
  margin: 0;
  color: #fff;
  animation-name: fade-in-animation;
  animation-duration: 3s;
}

.hero-section h3 {
  color: #fff;
  font-size: 1rem;
  line-height: 1.4rem;
  animation-name: fade-in-animation;
  animation-duration: 3s;
}

.subject-description-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1.5rem;
  text-align: center;
  line-height: 1.6rem;
}

.statistics-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
    align-items: center;
  row-gap: 16vh;
  padding: 5rem 1.5rem;
  background-image: linear-gradient(to left, rgb(51, 194, 75), rgb(28, 197, 132), rgb(43, 188, 207));
  color: #fff;
}

.statistics-section article {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.statistics-section article .image-container {
  display: flex;
  justify-content: center;
  align-items: center;
  border: 2px solid #fff;
  border-radius: 100%;
  background-color: rgba(255, 255, 255, 0.15);
}

.statistics-image {
  width: 140px;
}

.statistics-section p {
  text-align: justify;
}

.statistics-conclusion-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 3rem 2rem;
  text-align: center;
}


.importance-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  row-gap: 2rem;
  padding: 3rem 2rem;
  background-image: linear-gradient(to left, rgb(51, 194, 75), rgb(28, 197, 132), rgb(43, 188, 207));
}

.importance-section .info-container {
  text-align: justify;
  hyphens: auto;
}

.importance-section .info-container h1, .importance-section .info-container p {
  color: #fff;
}

.images-container {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  row-gap: 0;
  column-gap: 0;
}

.images-container img {
  height: 100%;
  width: 100%;
  object-position: center;
  object-fit: cover;
  border-radius: 5%;
}

.images-container > div {
  display: none;
}

.images-container div:has(.img-1) {
  display: block;
}

.solution-introduction-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 3rem 2rem;
  text-align: center;
}


.solution-introduction-section p {
  text-align: center;
}

.solutions-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  row-gap: 20px;
  padding: 3rem 2rem;
  background-image: linear-gradient(to left, rgb(51, 194, 75), rgb(28, 197, 132), rgb(43, 188, 207));
}

.solutions-section .info-container {
  text-align: center;
  color: #fff;
}

.solution-info-container div h1 {
  margin-bottom: 4vh;
}

.solutions-section .image-container {
  margin-top: 5vh;
}

.solutions-section .image-container img {
  height: 100%;
  width: 100%;
  filter: brightness(0.5);
  border-radius: 10px;
  object-position: center;
  object-fit: cover;
}

.conclusions-section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 3rem 2rem;
  text-align: center;
}

footer {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 3rem 2rem;
  background-image: linear-gradient(to left, rgb(51, 194, 75), rgb(28, 197, 132), rgb(43, 188, 207));
  color: #fff;
}

.integrants-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr 1fr;
  justify-content: space-between;
  row-gap: 1rem;
  column-gap: 2rem;
  font-size: 1rem;
}

ul {
  list-style-type: none;
}

.hero-section-link {
  margin-top: 10vw;
}

footer a {
  text-decoration: none;
  color: #fff;
}

@media only screen and (min-width: 601px) and (max-width: 768px) {
  .subject-description-section {
    padding: 4rem;
  }

  .statistics-section {
    row-gap: 10vh;
    padding: 6rem 5rem;
  }

  .statistics-section article .image-container {
    height: 20rem;
    width: 20rem;
  }

  .statistics-image {
    width: 200px;
  }

  .statistics-conclusion-section {
    padding: 4rem;
  }

  .importance-section {
    row-gap: 2rem;
    padding: 4rem;
  }

  .images-container {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
    column-gap: 2rem;
  }

  .images-container div:has(.img-2) {
    display: block;
  }

  .solution-introduction-section, .solutions-section {
    padding: 4rem;
  }

  .solutions-section .image-container img {
    border-radius: 20px;
  }

  .conclusions-section, footer {
    padding: 4rem;
  }

  .integrants-list {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
  }

  .hero-section-link {
    margin-top: 0;
  }
}

@media only screen and (min-width: 769px) and (max-width: 992px) {
  p {
    font-size: 0.8rem;
  }

  .subject-description-section {
    padding: 4rem;
  }

  .statistics-section {
    flex-direction: row;
    justify-content: space-between;
    column-gap: 2rem;
    padding: 5rem 2rem;
    align-items: start;
    color: #fff;
  }

  .statistics-section article h3 {
    line-height: 1.5rem;
    font-size: 1.2rem;
  }

  .statisctics-section article .image-container {
    height: 10rem;
    width: 10rem;
  }

  .statistics-image {
    width: 100px;
  }

  .statistics-conclusion-section {
    padding: 4rem;
  }

  .importance-section {
    row-gap: 2rem;
    padding: 4rem;
  }

  .images-container {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr;
    column-gap: 2rem;
  }

  .images-container div:has(.img-2) {
    display: block;
  } 

  .solution-introduction-section, .solutions-section, .conclusions-section, footer {
    padding: 4rem;
  }

  .solutions-section .image-container img {
    border-radius: 20px;
  }

  .integrants-list {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
  }
}

@media only screen and (min-width: 993px) and (max-width: 1200px) {
  h1, h3 {
    line-height: 2.2rem;
    font-size: 1.8rem;
  }

  .hero-section h3 {
    font-size: 1.2rem;
  }

  p, li, a {
    line-height: 1.6rem;
    font-size: 1rem;
  }

  .hero-section {
    padding: 3rem;
  }

  .subject-description-section {
    padding: 4rem;
  }

  .statistics-section {
    flex-direction: row;
    justify-content: space-between;
    column-gap: 2rem;
    padding: 5rem 2rem;
    align-items: start;
    color: #fff;
  }

  .statistics-section article .image-container {
    height: 10rem;
    width: 10rem;
  }

  .statistics-image {
    width: 100px;
  }

  .statistics-conclusion-section {
    padding: 4rem;
  }

  .importance-section {
    flex-direction: row;
    column-gap: 2.5rem;
    padding: 3rem;
  }

  .importance-section .info-container h1 {
    margin-top: 0;
  }


  .images-container {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    column-gap: 2rem;
    row-gap: 2rem;
  }

  .images-container div {
    height: 250px;
    width: 250px;
  }

  .images-container div:has(.img-1),
  .images-container div:has(.img-2),
  .images-container div:has(.img-3),
  .images-container div:has(.img-4) {
    display: block;
  }

  .solution-introduction-section, .solutions-section, .conclusions-section, footer {
    padding: 4rem;
  }

  .solutions-section .image-container img {
    border-radius: 30px;
  }

  .integrants-list {
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr;
  }
}

@media only screen and (min-width: 1200px) {
  h1, h3 {
    line-height: 2.2rem;
    font-size: 2.2rem;
  }

  p, li, a {
    line-height: 1.6rem;
    font-size: 1.2rem;
  }

  .hero-section h3 {
    font-size: 1.2rem;
  }

  .subject-description-section {
    padding: 4rem 8rem;
  }

  .statistics-section {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  column-gap: 4vw;
  padding: 5rem 2rem;
  align-items: start;
  color: #fff;
  }

  .statistics-section {
    row-gap: 10vh;
    padding: 4rem 8rem;
  }

  .statistics-section article .image-container {
    height: 16rem;
    width: 16rem;
  }

  .statistics-image {
    width: 150px;
  }

  .statistics-section article h3 {
    font-size: 2rem;
    line-height: 2.8rem;
  }

  .statistics-conclusion-section {
    padding: 4rem 8rem;
  }

  .statistics-conclusion-section h1 {
    font-size: 2.2rem;
    line-height: 3rem;
  }

  .importance-section {
    flex-direction: row;
    column-gap: 2.5rem;
    padding: 4rem;
  }

  .importance-section .info-container h1 {
    font-size: 2.2rem;
    line-height: 3.4rem;
    margin-top: 0;
  }

  .images-container {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    column-gap: 2rem;
    row-gap: 2rem;
  }

  .images-container div {
    height: 250px;
    width: 250px;
  }

  .images-container div:has(.img-2),
  .images-container div:has(.img-3),
  .images-container div:has(.img-4),
  .images-container div:has(.img-5),
  .images-container div:has(.img-6) {
  display: block;
  }

  .solution-introduction-section {
    padding: 4rem 8rem;
  }

  .solutions-section {
    padding: 4rem 8rem;
  } 

  .solutions-section .image-container {
    margin-top: 10vh;
    height: 300px;
  }

  .solutions-section .image-container img {
    border-radius: 30px;
  }

  .conclusions-section {
    padding: 4rem 10rem;
  }

  .conclusions-section p {
    text-align: center;
  }

  footer {
    align-items: center;
    padding: 5rem;
  }

  footer h1 {
    margin-top: 0;
    margin-bottom: 4vh;
    font-size: 1.8rem;
  }

  .integrants-list {
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
    grid-template-rows: 1fr;
  }

  li {
    font-size: 1rem;
  }

  .hero-section-link {
    margin-top: 14vh;
  }

  footer a {
    font-size: 1rem;
  }

}

@keyframes fade-in-animation {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes fade-in-image {
  from { opacity: 0; }
  to { opacity: 1; }
}