/* history.html 전용 스타일 */
html, body {
    height: 100%;
    min-height: 100vh;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#main {
    flex: 1 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#footer {
    flex-shrink: 0;
}

.page-title-container {
    display: grid;
    align-items: center;
    justify-content: center;
    height: 400px;
    background-image: 
    linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
    url('https://images.unsplash.com/photo-1462206092226-f46025ffe607?q=80&w=1748&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    text-align: center;
    padding-bottom: 30px;
}
.title-content .subtitle {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 1px;
}
.page-title {
  font-size: 2.6rem;
  font-weight: 800;
  color: #ffffff;
  margin: 10px 0 8px 0;
}
.page-description {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.08rem;
  margin-bottom: 0;
}
.content-container {
    display: grid;
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(30,80,180,0.06);
    padding: 50px 30px;
}
.p-content-title {
  color: #123746;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
  letter-spacing: 1px;
}
.timeline-container {
  margin-top: 24px;
  border-left: 3px solid #e3f0ff;
  padding-left: 32px;
}
.timeline-item {
  margin-bottom: 40px;
  position: relative;
  opacity: 0;
  transform: translateY(40px);
  animation: fadeUp 1s cubic-bezier(.4,0,.2,1) forwards;
}
.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.3s; }
.timeline-item:nth-child(3) { animation-delay: 0.5s; }
.timeline-item:nth-child(4) { animation-delay: 0.7s; }
.timeline-item:nth-child(5) { animation-delay: 0.9s; }
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.timeline-year {
  position: absolute;
  left: -60px;
  top: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: #1976b6;
  background: #e3f0ff;
  border-radius: 8px;
  padding: 4px 16px;
  box-shadow: 0 2px 8px rgba(30,80,180,0.07);
}
.timeline-content {
  background: #f7faff;
  border-radius: 10px;
  padding: 18px 24px;
  box-shadow: 0 2px 8px rgba(30,80,180,0.04);
  margin-left: 8px;
}
.timeline-content-title {
  font-size: 1.15rem;
  color: #1976b6;
  font-weight: 700;
  margin-bottom: 6px;
}
.timeline-content-description {
  color: #444;
  font-size: 1.02rem;
  margin: 0;
}
@media (max-width: 600px) {
  .content-container {
    padding: 24px 20px;
    margin: 0 20px;
  }
  .timeline-container {
    padding-left: 12px;
  }
  .timeline-year {
    left: -40px;
    font-size: 0.98rem;
    padding: 3px 10px;
  }
  .timeline-content {
    padding: 12px 10px;
  }
}