:root {
    --primary-color: #0B1626;
    --secondary-color: #3EC1F3;
    --accent-color: #FF5A5F;
    --text-color: #FFFFFF;
    --background-color: #F8F8F8;
    --secondary-background-color: rgba(241, 241, 241, 0.55);; 
  }


  body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
  }

  header {
    padding-left: 10%;
    padding-right: 10%;
    padding-top: 5px;
    padding-bottom: 5px;
    text-align: left;
    background: var(--primary-color);
  }

  header img {
    max-width: 250px;   
}

header h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

section {
  padding: 1rem 1rem;
  margin: auto;
}

header p {
  font-size: 1rem;
  margin-bottom: 2rem;
  color: #6C757D;
  padding: 0 1rem;
}

footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.9rem;
  background: var(--primary-color);
  color: var(--text-color);
}

a {
  color: var(--text-color);
  text-decoration: underline;
}


* {
  box-sizing: border-box;
}


.intro {
  text-align: center;
  background-color: var(--primary-color);
  margin-left: auto;
  margin-right: auto;
}

.vision,
.signup {
  text-align: center;
  background-color: var(--background-color);
  color: var(--primary-color);
  margin-left: auto;
  margin-right: auto;
}

.audience {
  background-color: var(--secondary-background-color);
  color: var(--primary-color);
}

.cta-btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

section h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
  text-align: center;
}

.features {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.feature {
  background: var(--background-color);
  padding: 1.5rem;
  box-shadow: 0 0 10px rgba(0,0,0,0.15);
  border-left: 4px solid var(--accent-color);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.feature strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.email-signup {
  margin-top: 2rem;
  text-align: center;
}

input[type=email] {
  padding: 0.5rem;
  font-size: 1rem;
  width: 100%;
  max-width: 320px;
  margin-top: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.section-layout {
  display: flex; 
  align-items: center;
}

.section-content {
  width: 60%;
  padding-left:5%;
  padding-right: 5%;
}

.section-feature {
  width: 60%;
  padding-left:5%;
  padding-right: 5%;
}

.section-image {
  width: 40%;
  padding-left:5%;
  padding-right: 5%;
}

.feature-title {
  /* width: 40% !important; */
  align-items: start;
}

.runner {
  visibility:visible;
}

.runner-image {
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  height: 300px;
  width: 300px;
}

@media(min-width: 768px) {
  header h1 {
    font-size: 2.5rem;
  }

  header p {
    font-size: 1.2rem;
  }

  section h2 {
    font-size: 2rem;
  }
}

@media(max-width: 1024px) {
  .runner-image {
    height: 200px;
    width: 200px;
  }
}

@media(max-width: 430px) {

  .intro {
    padding: 0;
  }

  .runner-mobile {
    background-image: url('images/background.jpeg');
    background-size: cover;
    background-position-x: center;
    background-position-y: center;
    max-height: 250px;
  }

  .runner {
    visibility: hidden;
  }

  .section-layout {
    display: flow-root;
    align-items: normal;
  }

  .section-content {
    margin-left: auto;
    margin-right: auto;
    min-width: fit-content;
    max-height: 250px;
  }

  .section-feature {
    width: unset;
  }

  .section-image {
    visibility: collapse;
    width: 0px;
  }

  section h2,
  .section-content h2  {
    font-size: 1.5rem;
  }
}