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

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #fff;
  padding: 10px 20px;
  text-align: center;
  font-size: 24px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  margin: 5px auto;
}

header nav {
  display: flex;
  justify-content: normal;
  align-items: center;
}

header nav a {
  text-decoration: none;
  color: #000;
  margin-left: 20px;
  font-size: 22px;
}

.hero-section-1 {
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden; 
}

.hero-content, .hero-text {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

.hero-text img {
  width: 70%;      
  height: auto;   
  display: block; 
  margin: 0 auto;
}

.hero-text h1 {
  font-size: 48px;
  font-weight: bold;
  color: #000;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-text p {
  font-size: 18px;
  color: #000;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-section-2 {
  background-color: #337cf2;
  padding: 100px 0;
  text-align: center;
  width: 100%;
  margin: 0;
}

.hero-section-2 .inner-container {
  padding: 0 20px;
}

.hero-sec2-header {
  padding-top: 2.5%;
  font-size: 40px;
}

.hero-section-2 form {
  padding: 10px;
  font-size: 1rem;
  width: calc(100% - 50px);
  max-width: 600px;
  margin: 0 auto;
}

.hero-section-2 input {
  padding: 10px;
  width: 15%;
  border: 1px solid #ccc;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.hero-section-2 button {
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.hero-section-3 {
  width: 100%;
}

.hero-section-3 h2 {
  margin-top: 0;
  text-align: center;
}

.feature-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.feature-card {
  background-color: #fff;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
  margin: 20px;
  width: 30%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.feature-card h3 {
  margin-top: 0;
  text-align: center;
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
}

.feature-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: center;
}

.feature-card li {
  margin-bottom: 10px;
  font-size: 16px;
  color: #666;
}

.feature-card li::before {
  content: "\2022";
  font-size: 16px;
  color: #337cf2;
  margin-right: 10px;
}

main {
  width: 100%;
  margin: 0;
  padding: 0;
  display: block;
}

main .inner-container {
  padding: 10px 20px;
}

.normal-footer {
  background-color: #337cf2;
  color: #fff;
  padding: 10px;
  text-align: center;
  clear: both;
  margin-top: auto;
}

.fixed-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #337cf2;
    color: #fff;
    padding: 10px;
    text-align: center;
    z-index: 1000;
  }

img {
  max-width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    padding: 0;
  }

  .hero-text {
    width: 100%;
    padding: 10px;
  }

  .hero-illustration {
    width: 100%;
    height: auto;
  }

  .hero-section-2 input {
    width: 80%;
  }

  .feature-card {
    width: 90%;
  }

  .hero-text h1 {
    font-size: 2.5em;
  }

  .hero-section-2 {
    padding: 50px 0;
  }

  .hero-sec2-header {
    font-size: 32px;
  }

  .hero-section-2 form {
    width: calc(100% - 40px);
    padding: 10px;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 2em;
  }

  .hero-section-2 input {
    width: 90%;
  }

  .feature-card {
    width: 100%;
    margin: 10px 0;
  }

  .hero-section-1 {
    padding: 50px 0;
  }
}

.newsletter { 
  margin-bottom: 40px; 
  border-bottom: 1px solid #ddd; 
  padding-bottom: 20px; 
}

.newsletter h2 { 
  color: #007bff; 
}

.newsletter-time {
  color: #666;
  font-size: 0.9em;
}

.newsletter-detail {
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.newsletter-detail h1 {
  color: #007bff;
}
.back-link {
  margin-top: 20px;
  display: inline-block;
  color: #007bff;
  text-decoration: none;
}
.back-link:hover {
  text-decoration: underline;
}

main h1 {
  text-align: center;
  margin-bottom: 20px;
  color: #007bff;
}

.cards-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.newsletter-content {
  width: 5000px%;
}

.newsletter-card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  width: 300px;
  display: flex;
  flex-direction: column;
  padding: 20px;
  transition: transform 0.15s ease-in-out;
}

.newsletter-card:hover {
  transform: translateY(-5px);
}

.newsletter-card h2 {
  font-size: 1.5em;
  color: #007bff;
  margin-bottom: 10px;
}

.newsletter-card p.newsletter-time {
  font-size: 0.8em
}

.newsletter-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
  }