html {
  scroll-behavior: smooth;
}

body {
  font-family: "JetBrains Mono", monospace;
  background-color: #ffffff;
  color: #000000;
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px 20px;
  margin: 10px auto;
  border: 2px solid #000000;
  border-radius: 50px;
  background: transparent;
  max-width: 1400px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 10px;
  z-index: 100;
  transition: background 0.3s ease, backdrop-filter 0.3s ease,
    max-width 0.3s ease;
}

h1 {
  margin: 0;
  font-size: 1.8em;
  font-weight: 700;
  color: #000000;
}

.nav-links {
  display: flex;
  gap: 20px;
}

nav a {
  text-decoration: none;
  color: #000000;
  font-weight: 700;
  padding: 8px 15px;
  border-radius: 10px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

nav a:hover {
  background-color: #000000;
  color: #ffffff;
}

h2 {
  font-size: 2em;
  margin-bottom: 20px;
  text-align: center;
}

h3 {
  font-size: 1.5em;
  margin-top: 0;
}

section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 40px auto 0;
  max-width: 900px;
  justify-content: center;
  align-items: stretch;
}

.card {
  background-color: #f9f9f9;
  border: 1px solid #cccccc;
  border-radius: 15px;
  padding: 25px;
  margin: 0;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.trail {
  margin: 60px auto 0;
  width: min(80%, 900px);
  height: 2px;
  background-image: radial-gradient(#000000 1px, transparent 1px);
  background-size: 10px 2px;
  background-repeat: repeat-x;
  transform-origin: center;
}

body.js-enabled .card {
  opacity: 0;
  transform: translateY(30px);
}

body.js-enabled .card.animated {
  opacity: 1;
  transform: translateY(0);
}

body.js-enabled .trail {
  transform: scaleX(0);
  opacity: 0.25;
}

body.js-enabled .trail.animated {
  transform: scaleX(1);
  opacity: 0.5;
}

.frosted {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

.compact {
  max-width: 800px;
}

/* Style Toggle Component */
.style-toggle {
  position: fixed;
  top: 100px;
  right: 20px;
  z-index: 200;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

#styleToggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(20px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

#styleToggle:hover {
  transform: scale(1.15);
  background: rgba(255, 255, 255, 0.6);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

#styleToggle:active {
  transform: scale(0.9);
}

.toggle-icon {
  transition: transform 0.3s ease;
  opacity: 0.7;
}

/* Apple Glass Design Style */
body.apple-glass nav.frosted {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

body.apple-glass .card {
  background: rgba(249, 249, 249, 0.6);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

body.apple-glass li {
  background: rgba(249, 249, 249, 0.6);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-left: 5px solid #000000;
}

body.apple-glass #styleToggle {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

ul {
  list-style-type: none;
  padding: 0;
}

li {
  background-color: #f9f9f9;
  border-radius: 10px;
  padding: 15px;
  margin: 15px 0;
  border-left: 5px solid #000000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

footer {
  background-color: #000000;
  color: #ffffff;
  text-align: center;
  padding: 30px;
  border-radius: 20px 20px 0 0;
  margin-top: 40px;
}

/* Responsive Design */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    gap: 15px;
    padding: 10px 15px;
    margin: 10px;
    border-radius: 25px;
  }

  .nav-links {
    flex-direction: column;
    gap: 10px;
  }

  h2 {
    font-size: 1.8em;
  }

  .card-grid {
    margin-top: 30px;
    gap: 20px;
  }

  section {
    padding: 40px 15px;
  }
}

@media (max-width: 480px) {
  nav {
    padding: 8px 12px;
    border-radius: 20px;
  }

  h2 {
    font-size: 1.6em;
  }

  .card {
    padding: 20px;
  }

  li {
    padding: 10px;
  }
}