@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;800&display=swap');

:root{
  --gold: rgb(245,197,66);
  --blue: rgb(0,210,255);
  --bg: #050505;
}

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

body{
  background: radial-gradient(circle at top, #0a0a0a, #000);
  color: var(--gold);
  font-family: 'Orbitron', system-ui, sans-serif;
}

.container{
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px 60px;
}

.header{
  text-align:center;
  margin-bottom: 80px;
}

.header h1{
  font-size: clamp(2.6rem, 6vw, 4rem);
  letter-spacing: 0.35em;
  text-shadow: 0 0 30px rgba(245,197,66,0.35);
}

.header .sub{
  margin-top: 18px;
  font-size: 0.95rem;
  letter-spacing: 0.3em;
  opacity: 0.7;
}

.timeline{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.timeline::before{
  content:"";
  position:absolute;
  left: 140px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    rgba(0,210,255,0.05),
    rgba(0,210,255,0.35),
    rgba(0,210,255,0.05)
  );
}

.event{
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 40px;
  position: relative;
}

.event::before{
  content:"";
  position:absolute;
  left: 131px;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0,210,255,0.9);
  box-shadow: 0 0 20px rgba(0,210,255,0.6);
}

.event.active::before{
  background: var(--gold);
  box-shadow: 0 0 28px rgba(245,197,66,0.7);
}

.date{
  text-align:right;
  font-size: 0.9rem;
  letter-spacing: 0.25em;
  opacity: 0.85;
}

.content h2{
  font-size: 1.35rem;
  margin-bottom: 14px;
  letter-spacing: 0.15em;
}

.content p{
  font-size: 0.95rem;
  line-height: 1.6;
  opacity: 0.85;
  margin-bottom: 14px;
}

.content ul{
  margin-left: 18px;
  opacity: 0.85;
}

.content li{
  margin-bottom: 6px;
}

.content .emphasis{
  color: var(--gold);
  font-weight: 600;
}

.footer{
  margin-top: 90px;
  text-align:center;
  opacity: 0.6;
}

.footer span{
  display:block;
  margin-top: 14px;
  letter-spacing: 0.4em;
  font-size: 0.85rem;
}

@media (max-width: 720px){
  .timeline::before{
    left: 20px;
  }

  .event{
    grid-template-columns: 1fr;
    padding-left: 48px;
  }

  .event::before{
    left: 10px;
  }

  .date{
    text-align:left;
    margin-bottom: 6px;
  }
}