html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

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

h1,
h2,
h3,
p {
  margin: 0;
}

body {
  min-width: 320px;
  margin: 0;
  color: #fff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

a {
  color: inherit;
}

.header {
  padding: 10px 0;
  background-color: #fff;
}

.navigation {
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 50px;
}

.section {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 33vh;
  }

.section__title {
  text-align: center;
  margin-bottom: 40px;
}

.section__button {
  background-color: transparent;
  border: 1px solid white;
  color: white;
  font-weight: 700;
  padding: 10px 20px;
  cursor: pointer;
  outline: 2px solid transparent;
  outline-offset: 3px;
  transition: background-color .2s ease-in-out, color .2s ease-in-out;
}

.section__button:hover {
  background-color: #003060;
  color: #fff;
}

.section__button:focus-visible {
  outline-color: yellow;
}

.modal {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  cursor: pointer;
  padding: 30px;
  overflow-y: auto;
  display: none;
}

.modal__main {
  position: relative;
  max-width: 80vw;
  width: 100%;
  background-color: #003060;
  margin: auto;
  color: #fff;
  border-radius: 16px;
  padding: 30px 60px 60px;
  cursor: default;
}

.modal__title {
  font-size: 60px;
  margin-bottom: 30px;
}

.modal__container {
  font-size: 30px;
  margin-bottom: 30px;
}

.modal__btn {
  background-color: red;
  color: #fff;
  font-size: 26px;
  text-align: center;
  display: block;
  margin: 0 auto; 
  border-radius: 20px;
  border: none;
  padding: 15px 30px;
}

.modal__close {
  background-color: transparent;
  border: none;
  cursor: pointer;
  font-size: 22px;
  color: #fff;  
  position: absolute;
  top: 10px;
  right: 10px;
  outline: 1px solid transparent;
  outline-offset: 3px;
  transition: outline-color .15s ease-in-out;
  border-radius: 3px;
  padding: 0;
  text-align: center;
  display: block;
  width: 30px;
  height: 30px;
}

.modal__close:focus-visible {
  outline-color: white;
}