body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
  background-color: #ffffff;
  color: #000000;
  line-height: 1.6;
}

nav {
  background-color: #f8f8f8;
  padding: 1rem;
  display: flex;
  gap: 1.5rem;
  border-bottom: 1px solid #e0e0e0;
}

nav a {
  text-decoration: none;
  color: #000000;
  font-weight: 200;
  transition: color 0.2s ease;
}

nav a:hover {
  color: #808080;
  text-decoration: none;
}

main {
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.homepage-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  height: calc(100vh - 64px);
  text-align: center;
  overflow: hidden;
}

.logo-placeholder .iroiro {
  font-family: 'Instrument Serif', serif;
  font-size: 7rem;
  font-weight: 400;
  line-height: 0.5;
}

.logo-placeholder .software {
  font-size: 2.7rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  margin-top: 0.2rem;
  color: #808080;
}

.email-link {
  color: #808080;
  text-decoration: none;
}

.main-content {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 80px);
  padding: 2rem;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.image-container {
  flex-shrink: 0;
  position: relative;
}

.courtcal-image {
  width: 500px;
  height: auto;
  border-radius: 15px;
  box-shadow: 0 20px 40px rgba(23, 65, 196, 0.3);
}

.content-section {
  flex: 1;
  max-width: 500px;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: -1rem;
}

.app-title {
  font-size: 3rem;
  font-weight: 700;
  color: #000;
  margin: 0;
  font-family: 'Inter', sans-serif;
}

.app-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.app-icon img {
  width: 80%;
  height: 80%;
  object-fit: cover;
  border-radius: inherit;
}

.features-list li {
  font-size: 1.5rem;
  font-weight: 600;
  margin-left: -1rem;
  color: #000;
}

.description {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #333;
  margin: 0;
  text-align: justify;
}


@media (max-width: 768px) {
  .main-content {
    flex-direction: column;
    gap: 2rem;
    padding: 1rem;
  }
  
  .app-title {
    font-size: 3rem;
  }
  
  .features-list li {
    font-size: 1.2rem;
  }
  
  .image-container {
    text-align: center;
  }
  
  .courtcal-image {
    max-width: 90%;
  }
}