body {
  background: radial-gradient(circle at center, #000018, #0f0c29, #001f3f, #302b63, #24243e);
  color: #fff;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 1rem;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ✨ TITLE STYLE */
h1 {
  text-align: center;
  margin: 1rem 0 1.5rem;
  font-size: clamp(1.7rem, 6vw, 2.5rem);
  color: #00ffff;
  text-shadow: 0 0 10px #00ffff;
  animation: pulseGlow 2s infinite ease-in-out;
  padding: 0 0.5rem;
  line-height: 1;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* ✨ VERTICAL LINE */
.timeline::after {
  content: '';
  position: absolute;
  width: 4px;
  background: #00ffff;
  top: 0;
  bottom: 0;
  left: 1.5rem;
  animation: pulseLine 2s infinite ease-in-out;
  z-index: 1;
}

/* ✨ STEP BLOCK STYLE */
.step {
  padding: 1.5rem 1.5rem 1.5rem 4rem;
  position: relative;
  background-color: #111;
  width: calc(100% - 3rem);
  border-radius: 8px;
  margin: 1rem 0;
  box-shadow: 0 0 15px rgba(0,255,255,0.4);
  animation: fadeIn 1s ease-in forwards;
  opacity: 0;
  box-sizing: border-box;
}

/* 🔥 STEP COLORS - Cyberpunk Glow */
.step:nth-child(1) {
  background: linear-gradient(135deg, #00ffff, #004d4d);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.7);
}
.step:nth-child(2) {
  background: linear-gradient(135deg, #ff00ff, #330033);
  box-shadow: 0 0 20px rgba(255, 0, 255, 0.7);
}
.step:nth-child(3) {
  background: linear-gradient(135deg, #00ff99, #003d2e);
  box-shadow: 0 0 20px rgba(0, 255, 153, 0.7);
}
.step:nth-child(4) {
  background: linear-gradient(135deg, #ff9900, #4d2600);
  box-shadow: 0 0 20px rgba(255, 153, 0, 0.7);
}
.step:nth-child(5) {
  background: linear-gradient(135deg, #3399ff, #001f33);
  box-shadow: 0 0 20px rgba(51, 153, 255, 0.7);
}
.step:nth-child(6) {
  background: linear-gradient(135deg, #cc00ff, #33004d);
  box-shadow: 0 0 20px rgba(204, 0, 255, 0.7);
}
.step:nth-child(7) {
  background: linear-gradient(135deg, #ff0033, #330000);
  box-shadow: 0 0 20px rgba(255, 0, 51, 0.7);
}

/* ✨ GLOWING DOT STYLE */
.step::before {
  content: '';
  position: absolute;
  top: 24px;
  width: 22px;
  height: 22px;
  background-color: #00ffff;
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 10px #00ffff;
  animation: pulseDot 2s infinite ease-in-out;
  left: 1.2rem;
}

/* ✨ STEP HEADING (Time / Quarter) */
h2 {
  font-size: clamp(1.2rem, 4.5vw, 1.4rem);
  color: #00ffff;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

/* ✨ STEP DESCRIPTION */
p {
  font-size: clamp(1rem, 4vw, 1.1rem);
  color: #ccc;
  margin: 0.75rem 0 0;
  line-height: 1.5;
}

/* ✨ Animations */
@keyframes pulseGlow {
  0%, 100% {
    text-shadow: 0 0 10px #00ffff, 0 0 20px #00ffff;
  }
  50% {
    text-shadow: 0 0 20px #00ffff, 0 0 30px #00ffff;
  }
}

@keyframes pulseDot {
  0%, 100% {
    box-shadow: 0 0 10px #00ffff;
  }
  50% {
    box-shadow: 0 0 20px #00ffff, 0 0 30px #00ffff;
  }
}

@keyframes pulseLine {
  0%, 100% {
    background: #00ffff;
  }
  50% {
    background: #00f2ff;
  }
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
  from {
    opacity: 0;
    transform: translateY(20px);
  }
}

/* 📱 RESPONSIVE STYLE - Tablet */
@media (min-width: 768px) {
  body {
    padding: 3rem 2rem;
  }

  .timeline {
    margin: 3rem auto;
  }

  .timeline::after {
    left: 50%;
    margin-left: -2px;
  }

  .step {
    width: 42%;
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
  }

  .step:nth-child(odd) {
    left: 0;
    padding-right: 3.5rem;
  }

  .step:nth-child(even) {
    left: 55%;
    padding-left: 3.5rem;
  }

  .step:nth-child(odd)::before {
    right: -12px;
    left: auto;
    top: 26px;
  }

  .step:nth-child(even)::before {
    left: -12px;
    top: 26px;
  }
}

/* 🖥️ RESPONSIVE STYLE - Desktop */
@media (min-width: 992px) {
  .step {
    width: 50%;
    margin: 1rem 0;
  }
}