:root{
  --ink:        #12141c;
  --ink-soft:   #1c2030;
  --indigo:     #1b2a4a;
  --paper:      #eef1f0;
  --card:       #ffffff;
  --red:        #ed1b2f;
  --teal:       #146e7a;
  --teal-soft:  #dfe9e7;
  --line:       #d6dbd8;
  --text:       #14161c;
  --text-muted: #27313b;

  --display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --body:    'Source Serif 4', Georgia, 'Times New Roman', serif;
  --mono:    'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 6px;
  --container: 1580px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; font-size:22px }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

body{ margin:0; background:var(--paper); color:var(--text); font-family:var(--body); font-size:17px; line-height:1.65; -webkit-font-smoothing:antialiased; }
h1,h2,h3,h4,h5{ font-family:var(--display); color:var(--ink); margin:0; letter-spacing:-0.01em; }
#masthead {
  position: relative;
  overflow: hidden;
  padding: 7rem 1rem;
  background-color: #000;
  background: url("../../assets/img/events/planetary_systems_board.jpg") center/cover no-repeat;
  color: #fff;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 450px;
  font-family: 'Poppins', 'Segoe UI', Roboto, sans-serif;
}
/* Text container with background */
#masthead .text-box {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.1);
  padding: 2rem 3rem;
  border-radius: 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(6px);
}
#masthead h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
  letter-spacing: 1px;
}

#masthead p {
  font-size: 1.4rem;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0.9;
  line-height: 1.6;
}

@media (max-width: 768px) {
  #masthead {
    height: auto;
    padding: 5rem 1rem;
  }
  #masthead h1 {
    font-size: 2.2rem;
  }
  #masthead p {
    font-size: 1.1rem;
  }
}

/* Named .gallery-grid/.gallery-card deliberately — .event-grid/.event-card
   would collide with the different .event-card rules in outreach.css,
   used by events.js on the homepage. Both stylesheets load on this page. */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 1rem auto;
  width: 100%;
  max-width: 1800px;
}
.gallery-card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  overflow: hidden;
  transition: transform 0.2s ease;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.gallery-card:hover {
  transform: translateY(-5px);
}
.gallery-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.gallery-card .content {
  padding: 1rem;
}
.gallery-card h3 {
  margin-top: 0.5rem;
  font-size: 1.25rem;
  color: #212529;
}
.gallery-card p {
  color: #555;
  font-size: 0.95rem;
}