* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  background: #526a78;
  min-height: 100vh;
  padding: 20px;
  position: relative;
}

header {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 10;
}

header img {
  height: 30px;
  width: 220px;
  object-fit: contain;
}

.container {
  background: hsl(200, 19%, 95%);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  padding: 30px 20px;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  margin-top: 80px;
}

h1 {
  color: #242728;
  margin-bottom: 20px;
  font-size: 2.8em;
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
  position: relative;
  padding-bottom: 15px;
}

h1::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #526a78, #6b8494);
  border-radius: 2px;
}

.subtitle {
  color: #666;
  text-align: center;
  margin-bottom: 40px;
  font-size: 1.1em;
}

.url-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.url-card {
  background: #f8f9fa;
  border: 2px solid #e9ecef;
  border-radius: 12px;
  padding: 20px;
  transition: all 0.3s ease;
  text-decoration: none;
  display: block;
  color: inherit;
}

.url-card:hover {
  border-color: #526a78;
  background: #fff;
}

.url-title {
  font-size: 1.2em;
  font-weight: 600;
  color: #03a58a;
  margin-bottom: 8px;
}

.url-description {
  font-size: 0.9em;
  color: #666;
  margin-bottom: 10px;
}

.url-link {
  font-size: 0.85em;
  color: #03a58a;
  word-break: break-all;
  font-family: "Courier New", monospace;
}

.url-card:hover .url-link {
  color: #03a58ac5;
}

footer {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 10;
}

footer a {
  color: white;
  text-decoration: none;
  font-size: 0.9em;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

footer a:hover {
  opacity: 1;
  text-decoration: underline;
}

@media (max-width: 600px) {
  header {
    top: 15px;
    left: 15px;
  }
  .container {
    padding: 20px;
    margin-top: 70px;
  }

  h1 {
    font-size: 2em;
    padding-bottom: 12px;
  }

  h1::after {
    width: 60px;
    height: 3px;
  }

  .url-grid {
    grid-template-columns: 1fr;
  }

  footer {
    bottom: 15px;
  }

  footer a {
    font-size: 0.85em;
  }
}