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

body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 300vh;
  background: linear-gradient(135deg, #000000, #0d2460);
  font-family: 'Arial', sans-serif;
  overflow-x: hidden;
  color: aliceblue;
  line-height: 1.5;
  position: relative;
}


body::-webkit-scrollbar {
  width: 10px;
}

body::-webkit-scrollbar-track {
  background: rgba(13, 36, 96, 0.3);
  border-radius: 10px;
}

body::-webkit-scrollbar-thumb {
  background: #4a6cf7;
  border-radius: 10px;
  box-shadow: 0 0 8px #4a6cf7;
}

body::-webkit-scrollbar-thumb:hover {
  background: #6b8cff;
}


body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 40%, rgba(80, 140, 255, 0.15), transparent 50%);
  pointer-events: none;
  z-index: 0;
}


.navigation {
  display: flex;
  position: fixed;
  top: 20px;
  left: 20px;
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
  z-index: 1000;
}

.navigation a {
  font-family: 'Arial', sans-serif;
  text-decoration: none;
  padding: 12px 24px;
  color: white;
  font-size: 1.1rem;
  font-weight: 500;
  border-radius: 50px;
  background: rgba(13, 36, 96, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.navigation a i {
  font-size: 0.9rem;
  transition: transform 0.2s ease;
}

.navigation a:hover {
  background: rgba(30, 60, 140, 0.7);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(74, 108, 247, 0.4);
}

.navigation a:hover i {
  transform: translateX(-4px);
}

.navigation a:active {
  transform: translateY(0);
}


.module {
  margin: 120px auto 60px;
  max-width: 1200px;
  width: 90%;
  text-align: center;
  font-size: 1.2rem;
  background: rgba(10, 20, 50, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 48px;
  padding: 3rem 4rem;
  box-shadow: 0 30px 50px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
  color: rgba(240, 248, 255, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: box-shadow 0.4s ease, background 0.3s;
  position: relative;
  z-index: 10;
}

.module:hover {
  background: rgba(15, 30, 70, 0.6);
  box-shadow: 0 35px 70px rgba(60, 120, 255, 0.5);
}
 
.module h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin: 1.8rem 0 1.2rem;
  background: linear-gradient(135deg, #ffffff, #b5ccff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border-bottom: 3px solid transparent;
  transition: border 0.2s;
  padding-bottom: 8px;
}

.module h1:after {
  content: '';
  display: block;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #4a6cf7, #a5c9ff);
  transition: width 0.3s ease;
  margin-top: 6px;
  border-radius: 4px;
}

.module h1:hover:after {
  width: 80%;
}


.module p {
  font-size: 1.3rem;
  margin: 1.6rem 0;
  background: rgba(0, 0, 0, 0.2);
  padding: 1.2rem 2rem;
  border-radius: 60px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 0.2s, border 0.2s, transform 0.1s;
  cursor: default;
  line-height: 1.6;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.module p:hover {
  background: rgba(20, 40, 100, 0.5);
  border: 1px solid #4a6cf7;
  transform: scale(1.01);
}

.module li {
  list-style: none;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(8px);
  margin: 0.8rem auto;
  padding: 1rem 1.8rem 1rem 3rem;
  border-radius: 60px;
  max-width: 800px;
  text-align: left;
  font-size: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.2s ease;
  position: relative;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  color: #f0f5ff;
}

.module li:hover {
  background: rgba(35, 60, 140, 0.7);
  border-color: #8aabff;
  transform: translateX(8px) scale(1.02);
  box-shadow: 0 10px 20px #1e2f6e;
}

.module li::before {
  content: "▹";
  position: absolute;
  left: 1.5rem;
  color: #8ab2ff;
  font-size: 1.7rem;
  line-height: 1;
  transition: transform 0.2s, color 0.2s;
}

.module li:hover::before {
  transform: rotate(10deg) scale(1.3);
  color: #ffd966;
}

/* === RESPONSIVE TWEAKS === */
@media (max-width: 700px) {
  .module {
    padding: 2rem 1.5rem;
  }
  .module h1 {
    font-size: 2rem;
    flex-wrap: wrap;
  }
  .navigation a {
    padding: 10px 20px;
    font-size: 1rem;
  }
}

/* === PULSE ANIMATION FOR FIRST HEADING === */
.module h1:first-of-type {
  animation: gentlePulse 3s infinite ease-in-out;
}

@keyframes gentlePulse {
  0% { text-shadow: 0 0 5px rgba(100, 160, 255, 0.2); }
  50% { text-shadow: 0 0 20px #4a6cf7, 0 0 35px #1e3c9c; }
  100% { text-shadow: 0 0 5px rgba(100, 160, 255, 0.2); }
}

/* === FLOATING INTERACTIVE ELEMENT === */
.floating-interactive {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: rgba(20, 50, 150, 0.6);
  backdrop-filter: blur(10px);
  padding: 12px 18px;
  border-radius: 40px;
  color: white;
  border: 1px solid white;
  box-shadow: 0 0 20px #3f6ef0;
  z-index: 999;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.floating-interactive i {
  font-size: 1.2rem;
}