/* google font API  */
@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.container {
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem; /* 16px (px-4) */
  padding-right: 1rem; /* 16px (px-4) */
  max-width: 100%;
}
/* header section style start  */
.header_wrapper {
  padding-block: 15px;
  padding-inline: 10px;
  display: flex;
  justify-content: space-between;
  position: relative;
  align-items: center;
}
.header_logo {
  width: 150px;
}
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 60vw;
  height: 100vh;
  background-color: #fff;
  display: flex;
  justify-content: center;
  padding-top: 50px;
  z-index: 50;
  transform: translateX(-150%);
  transition: all 0.4s ease;
}
nav.active {
  transform: translateX(0);
}
nav ul {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
nav ul li {
  list-style: none;
}
nav ul li a {
  text-decoration: none;
  font-size: 1rem;
  color: rgba(0, 0, 0, 1);
  font-weight: 600;
  font-family: "Montserrat", sans-serif;
  padding: 10px 5px;
  display: block;
  white-space: nowrap;
}
.nav_close {
  position: absolute;
  top: 10px;
  right: 10px;
  cursor: pointer;
}
.nav_open {
  cursor: pointer;
  padding: 5px;
}
.shadow {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  background: rgba(0, 0, 0, 0.341);
  z-index: 20;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}
.shadow.active {
  opacity: 1;
  visibility: visible;
}
/* hero section style start  */
.hero_wrapper {
  position: relative;
}
.hero_wrapper img {
  width: 100%;
  object-fit: cover;
  display: block;
}
.hero_shadow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to left,
    rgba(41, 121, 170, 0.64),
    rgba(255, 255, 255, 0) 70%
  );
}
.heading {
  font-size: 20px;
  font-weight: 600;
  font-family: "Montserrat", sans-serif;
  color: rgba(255, 255, 255, 1);
  position: absolute;
  top: 50%;
  left: 20%;
  z-index: 10;
  transform: translateY(-50%);
  line-height: 100%;
  letter-spacing: -2%;
  text-shadow: 0px 0px 7.5px rgba(0, 0, 0, 0.57);
  border-bottom: 2px solid rgba(41, 121, 170, 1);
}
/* display section style start  */
.display_section {
  background-color: rgba(41, 121, 170, 1);
  padding-block: 50px;
}
.display_header {
    margin-bottom: 30px;
  width: fit-content;
  padding-bottom: 20px;
  padding-inline: 10px;
  border-bottom: 2px solid rgba(255, 255, 255, 1);
    max-width: 712px;
  margin-inline: auto;
}
.display_header h2 {
    font-size: 20px;
  width: fit-content;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  color: rgba(255, 255, 255, 1);
}
.ottria_header {
    margin-bottom: 30px;
  width: fit-content;
  padding-bottom: 20px;
  padding-inline: 10px;
  border-bottom: 2px solid rgba(41, 121, 170, 1);
    max-width: 952px;
  margin-inline: auto;
}
.ottria_header h2 {
    font-size: 20px;
  width: fit-content;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  color: rgba(0, 0, 0, 1);
}
.display_wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 50px;
}
.display_wrapper .text_box p {
  max-width: 445px;
  font-size: 18px;
  font-weight: 400;
  font-family: "Open Sans", sans-serif;
  color: rgba(255, 255, 255, 1);
}
.display_wrapper .text_box p:nth-child(1) {
  margin-bottom: 28px;
}
.display_wrapper .text_box p:nth-child(2) {
  margin-left: 50px;
}
/* pillars section style start  */
.section_wrapper {
  padding-top: 60px;
}
.section_header {
  margin-bottom: 30px;
  width: fit-content;
  margin: auto;
  padding-bottom: 20px;
  padding-inline: 10px;
  border-bottom: 2px solid rgba(41, 121, 170, 1);
  margin-bottom: 30px;
}
.section_header h2 {
  font-size: 20px;
  width: fit-content;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  color: rgba(0, 0, 0, 1);
}
.partner_header {
  margin-bottom: 30px;
  margin: auto;
  padding-bottom: 20px;
  padding-inline: 10px;
  border-bottom: 2px solid rgba(41, 121, 170, 1);
  margin-bottom: 30px;
  max-width: 653px;
}
.partner_header h2 {
  font-size: 20px;
  width: fit-content;
  font-family: "Montserrat", sans-serif;
  font-weight: 300;
  color: rgba(0, 0, 0, 1);
}
.pillars_card_wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
  align-items: center;
}
.pillars_card {
  max-width: 280px;
  height: 331px;
  background: linear-gradient(
    to bottom,
    rgba(190, 229, 253, 1),
    rgba(255, 255, 255, 1)
  );
  border: 2px solid rgba(41, 121, 170, 1);
  border-radius: 10px;
  padding-top: 50px;
  text-align: center;
}
.pillars_card h3 {
  font-size: 30px;
  margin-bottom: 50px;
  font-weight: 600;
  font-family: "Montserrat", sans-serif;
  color: rgba(0, 0, 0, 1);
}
.pillars_card p {
  font-size: 18px;
  font-weight: 600;
  font-family: "Open Sans", sans-serif;
  color: rgba(0, 0, 0, 1);
}
/* ottria section style start  */
.ottria_text {
  font-size: 18px;
  font-weight: 400;
  font-family: "Open Sans", sans-serif;
  color: rgba(0, 0, 0, 1);
}
.die {
  max-width: 654px;
  margin: auto;
  margin-bottom: 18px;
}
.ottria_img_box {
  display: flex;
  flex-wrap: wrap;
  gap: 60px;
  align-items: flex-start;
  margin-bottom: 20px;
  justify-content: center;
}
.ottria_img_box ul {
  max-width: 445px;
  padding-left: 20px;
}
.ottria_img_box ul li {
  margin-bottom: 20px;
}
.damit {
  max-width: 542px;
  margin: auto;
  margin-bottom: 30px;
}
.Unternehmen {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.Unternehmen p {
  max-width: 542px;
}
.Unternehmen p:nth-child(1) {
  margin-bottom: 30px;
}
/* code section style start  */
.code_container {
  position: relative;
  margin-top: 50px;
}
.code_container img {
  display: block;
  object-fit: cover;
  width: 100%;
  height: 519px;
}
.code_container h1 {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
  font-size: 30px;
  color: #fff;
  padding-bottom: 20px;
  border-bottom: 2px solid #fff;
  max-width: 576px;
  z-index: 10;
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
}
.code_shadow {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 100%;
  background:linear-gradient(
    to left,
    rgba(41, 121, 170, 0.86),
    rgba(41, 121, 170, 0.64),
    rgba(41, 121, 170, 0.32)
  );
  z-index: 5;
}
/* partner section style start  */
.partner_grid_title {
  max-width: 654px;
  margin: auto;
  font-size: 18px;
  font-weight: 400;
  font-family: "Open Sans", sans-serif;
  margin-bottom: 30px;
}
.partner_grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: 654px;
  margin: auto;
  gap: 15px;
}
.partner_card {
  height: 208px;
  border-radius: 10px;
  border: 2px solid rgba(41, 121, 170, 1);
  text-align: center;
  background: linear-gradient(
    to bottom,
    rgba(190, 229, 253, 1),
    rgba(255, 255, 255, 1)
  );
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.partner_card img {
  width: 77px;
  height: 77px;
  object-fit: cover;
}
.partner_card p {
  font-size: 18px;
  font-weight: 600;
  color: rgba(0, 0, 0, 1);
  font-family: "Open Sans", sans-serif;
}
.partner_wrapper {
  padding-bottom: 60px;
}
/* footer section style start  */
.footer_wrapper {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 22px;
}
footer {
  background-color: rgba(41, 121, 170, 1);
  padding-block: 40px;
}
footer img {
  width: 234px;
  height: 75px;
}
.footer_links_wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}
.footer_links_wrapper ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer_links_wrapper ul li {
  list-style: none;
}
.footer_links_wrapper p {
  max-width: 319px;
  font-size: 1rem;
  font-weight: 600;
  font-family: "Montserrat", sans-serif;
  color: white;
}
.footer_links_wrapper ul li a {
  text-decoration: none;
  font-size: 1rem;
  padding: 5px;
  color: #fff;
  font-weight: 600;
  font-family: "Montserrat", sans-serif;
}
.ottria_text .bold {
  margin-bottom: 10px;
  display: block;
}

.ottria_wrapper {
  padding-top: 5.5rem;
}
/* sm (640px) */
@media (min-width: 640px) {
  .container {
    padding-left: 0; /* sm:px-0 */
    padding-right: 0;
    max-width: 33.75rem; /* 540px */
  }
}

/* md (768px) */
@media (min-width: 768px) {
  .container {
    max-width: 45rem; /* 720px */
  }
  .header_wrapper {
    align-items: flex-end;
    justify-content: flex-start;
    gap: 100px;
    padding-block: 20px;
    padding-inline: 20px;
  }
  .nav_open {
    display: none;
  }
  .nav_close {
    display: none;
  }
  nav {
    position: relative;
    transform: translate(0);
    display: block;
    padding: 0;
    height: fit-content;
    width: fit-content;
  }
  nav ul {
    flex-direction: row;
  }
  nav ul li {
    position: relative;
  }
  nav ul li a::after {
    content: "";
    width: 100%;
    height: 2px;
    background-color: rgba(41, 121, 170, 1);
    display: block;
    position: absolute;
    bottom: 15px;
    left: 0;
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.2s ease;
  }
  nav ul li a:hover::after {
    transform: translateY(4px);
    opacity: 1;
  }
  .heading {
    font-size: 30px;
    left: 35%;
    top: 43%;
    font-weight: 800;
    line-height: 140%;
  }
  .partner_grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* lg (1024px) */
@media (min-width: 1024px) {
  .ottria_wrapper {
    padding-top: 60px;
  }
  .container {
    max-width: 60rem; /* 960px */
  }
  .header_wrapper {
    padding-block: 30px;
    padding-inline: 86px;
  }
  .header_logo {
    width: 234px;
  }
  nav ul li a {
    padding: 15px 20px;
  }
  .heading {
    font-size: 45px;
    letter-spacing: -0.9px;
  }
  .display_wrapper {
    justify-content: flex-start;
    gap: 80px;
  }
  .display_wrapper .text_box p:nth-child(2) {
    margin-left: 100px;
  }
  .ottria_img_box {
    justify-content: flex-start;
  }
  .footer_links_wrapper {
    padding-left: 100px;
    gap: 200px;
    padding-bottom: 40px;
    border-bottom: 2px solid rgba(255, 255, 255, 1);
  }
  .footer_links_wrapper ul {
    gap: 20px;
  }
  .partner_header h2 {
    font-size: 30px;
  }
  .ottria_header h2 {
    font-size: 30px;
  }
  .section_header h2 {
    font-size: 30px;
  }
}

/* xl (1280px) */
@media (min-width: 1280px) {
  .container {
    max-width: 71.25rem; /* 1140px */
  }
  .header_wrapper {
    gap: 200px;
  }
  .display_wrapper {
    gap: 100px;
    padding-block: 80px;
    padding-left: 100px;
  }
  .display_wrapper .text_box p:nth-child(2) {
    margin-left: 150px;
  }
  .section_wrapper {
    padding-top: 130px;
  }
  .section_header {
    margin-bottom: 50px;
  }
  .section_header {
    margin-bottom: 50px;
    padding-inline: 15px;
  }
  .partner_header {
    margin-bottom: 50px;
    padding-inline: 15px;
  }
  .display_header {
    padding-inline: 15px;
  }
  .ottria_header {
     margin-bottom: 50px;
    padding-inline: 15px;
  }
  .section_header h2 {
    font-size: 30px;
  }
  .partner_header h2 {
    font-size: 45px;
  }
  .display_header h2 {
    font-size: 45px;
  }
  .display_header {
    max-width: 970px;
  }
  .ottria_header h2 {
    font-size: 45px;
  }
  .ottria_img_box {
    gap: 90px;
  }
  .ottria_img_box {
    padding-left: 70px;
  }
  .Unternehmen {
    padding-right: 80px;
  }
  .partner_wrapper {
    padding-bottom: 100px;
  }
  footer {
    padding-block: 60px;
  }
  .code_container h1 {
    font-size: 45px;
    font-weight: 800;
    left: 50%;
  }
  .code_container {
    margin-top: 100px;
  }
}

/* xxl (1500px) */
@media (min-width: 1500px) {
    .Unternehmen {
    padding-right: 150px;
    width: fit-content;
    margin: auto;
    margin-left: 520px;
  }
  .damit {
    margin-left: 350px;
  }
}
/* xxl (1536px) */
@media (min-width: 1536px) {
  .container {
    max-width: 86.25rem; /* 1380px */
  }
  .display_wrapper .text_box p:nth-child(2) {
    margin-left: 200px;
  }
}