/* ===========================================================
     TOKENS — same system as the events-page mockup
     Font used to be: Space Grotesk
  =========================================================== */
  :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: 'Source Serif 4', -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:19px; 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; }
  a{ color:inherit; }
  img{ max-width:100%; }
  .container{ max-width:var(--container); margin:0 auto; padding:0 1.5rem; }
  :focus-visible{ outline:2px solid var(--teal); outline-offset:3px; }
  .visually-hidden{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

  .eyebrow{ font-family:var(--mono); font-size:1.9rem; letter-spacing:0.12em; text-transform:uppercase; color:var(--teal); display:flex; align-items:center; gap:0.6rem; margin-bottom:0.75rem; }
  .eyebrow::before{ content:''; width:1.4rem; height:1px; background:var(--teal); display:inline-block; }

  .btn{ font-family:var(--display); font-size:0.9rem; font-weight:500; display:inline-flex; align-items:center; gap:0.5rem; text-decoration:none; cursor:pointer; border-radius:4px; padding:0.6rem 1.2rem; border:1px solid transparent; }
  .btn-ghost{ color:var(--teal); border-color:var(--teal-soft); background:var(--teal-soft); }
  .btn-ghost:hover{ background:var(--teal); border-color:var(--teal); color:#fff; }
  .btn-primary{ background:var(--ink); color:#fff; }
  .btn-primary:hover{ background:var(--red); }
  .link{ color:var(--teal); text-decoration-color:var(--teal-soft); }
  .link:hover{ text-decoration-color:var(--teal); }


  /* ===========================================================
     Heading
  =========================================================== */
  #masthead {
    position: relative;
    overflow: hidden;
    padding: 7rem 1rem;
    background-color: #000;
    background: url("../img/header_audience_astromcgill.jpg") center/cover no-repeat;
    color: #fff;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 450px;
  }
  
  
  /* 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: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-shadow: 0 1px 10px rgba(0,0,0,0.4);
  }
  
  #masthead h2 {
    font-size: 3.5rem;
    max-width: 900px;
    margin: 0 auto;
    opacity: 0.9;
    line-height: 1.6;
    line-height: 1.08;
  text-shadow: 0 2px 16px rgba(0,0,0,0.45);
  }

  /* Direct override */
#masthead h1, #masthead h2{ color:#fff; }

#masthead .text-box{
  background: rgba(18, 20, 28, 0.38);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

  /* ===========================================================
     SECTIONS — shared rhythm
  =========================================================== */
  section{ padding:4.5rem 0; }
  .bg-card{ background:var(--card); }
  .section-head{ max-width:58rem; margin-bottom:2.05rem; }
  .section-head p.lead{ color:var(--text-muted); font-size:1.05rem; }
  .section-head h2{ font-size:clamp(1.6rem, 2.6vw, 2.1rem); margin-bottom:0.75rem; }
  h2.big{ font-size:clamp(2.0rem, 3vw, 3.4rem); margin-bottom:1.25rem; }

  /* two-column split used by About / Public / Educators / Students */
  .split{ display:grid; grid-template-columns:1fr 1fr; gap:3rem; align-items:center; }
  .split .media{ order:1; }
  .split .copy{ order:2; }
  .split.flip .media{ order:2; }
  .split.flip .copy{ order:1; }
  @media (max-width:860px){
    .split{ grid-template-columns:1fr; }
    .split .media, .split.flip .media{ order:1; }
    .split .copy, .split.flip .copy{ order:2; }
  }

  .media img{ width:100%; border-radius:var(--radius); display:block; }
  .media.circle img{ border-radius:50%; aspect-ratio:1/1; object-fit:cover; }
  .media figcaption{ font-family:var(--mono); font-size:0.78rem; color:var(--text-muted); margin-top:0.6rem; text-align:center; }
  .media figure{ margin:0; }

  .copy p{ margin:0 0 1rem; }
  .copy h5{ font-size:1rem; margin:1.5rem 0 0.75rem; }

  .dot-list{ list-style:none; margin:0; padding:0; display:grid; gap:0.7rem; }
  .dot-list li{ position:relative; padding-left:1.3rem; }
  .dot-list li::before{ content:''; position:absolute; left:0; top:0.6em; width:6px; height:6px; border-radius:50%; background:var(--teal); }

  .collapse-toggle{ background:none; border:1px solid var(--line); color:var(--teal); border-radius:4px; font-family:var(--mono); font-size:0.8rem; padding:0.4rem 0.8rem; margin-top:0.9rem; cursor:pointer; display:inline-flex; align-items:center; gap:0.4rem; }
  .collapse-toggle:hover{ border-color:var(--teal); background:var(--teal-soft); }
  .collapse-toggle svg{ transition:transform 0.2s ease; }
  .collapse-toggle[aria-expanded="true"] svg{ transform:rotate(180deg); }
  .collapse-panel{ margin-top:1rem; }
  .collapse-panel[hidden]{ display:none; }

  .social-row{ display:flex; gap:1.1rem; justify-content:center; align-items:center; margin-top:0.5rem; }
  .social-row a, .social-row span{ color:var(--ink); display:inline-flex; }
  .social-row a:hover{ color:var(--red); }

  /* ===========================================================
     EVENTS
  =========================================================== */
  .status-loading{ font-family:var(--mono); font-size:0.9rem; color:var(--text-muted); padding:0.5rem 0 1.5rem; }
  .event-status-error{ color:var(--red); }

  #upcoming-events-list, #past-events-list{ display:flex; flex-direction:column; gap:1.5rem; }

  .event-empty{ display:flex; align-items:center; gap:0.9rem; background:var(--card); border:1px dashed var(--line); border-radius:var(--radius); padding:1.1rem 1.3rem; color:var(--text-muted); font-size:0.98rem; }

  .event-card{
    display:flex; gap:1.75rem;
    background:var(--card); border:1px solid var(--line); border-left:3px solid var(--teal-soft);
    border-radius:var(--radius); padding:1.5rem 1.75rem;
    transition:border-color 0.15s ease, transform 0.15s ease;
  }
  .event-card:hover{ border-color:var(--teal); border-left-color:var(--teal); transform:translateY(-2px); }

  .event-date-block{ flex:0 0 190px; font-family:var(--mono); font-size:0.82rem; color:var(--teal); line-height:1.5; }

  .event-card-body{ flex:1; min-width:0; }
  .event-card-body h3{ font-family:var(--display); color:var(--ink); font-size:1.2rem; margin:0 0 0.6rem; line-height:1.3; }
  .event-card-body p{ margin:0 0 1rem; color:var(--text); }

  .event-meta{ display:flex; flex-wrap:wrap; gap:0.4rem 1.2rem; margin-bottom:0.9rem; font-family:var(--mono); font-size:0.82rem; color:var(--text-muted); }
  .event-meta-item{ display:inline-flex; align-items:center; gap:0.4rem; }
  .event-meta-item svg{ width:14px; height:14px; flex:none; color:var(--teal); }

  .event-actions{ display:flex; flex-wrap:wrap; align-items:center; gap:0.75rem; }
  .event-actions .btn{ font-family:var(--display); font-weight:500; text-decoration:none; border-radius:4px; }
  .btn-sm{ font-size:0.85rem; padding:0.5rem 1rem; }
  .btn-outline-primary{ color:var(--teal); border:1px solid var(--teal-soft); background:var(--teal-soft); }
  .btn-outline-primary:hover{ background:var(--teal); border-color:var(--teal); color:#fff; }
  .event-calendar-link{
    width:32px; height:32px; display:inline-flex; align-items:center; justify-content:center;
    border-radius:50%; border:1px solid var(--line); color:var(--teal); flex:none;
  }
  .event-calendar-link:hover{ background:var(--teal-soft); border-color:var(--teal); }

  @media (max-width:640px){
    .event-card{ flex-direction:column; gap:0.6rem; }
    .event-date-block{ flex:none; }
  }

  .tools{ background:var(--card); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .tools-grid{ display:grid; grid-template-columns:1fr 1fr; gap:1.75rem; }
  @media (max-width:760px){ .tools-grid{ grid-template-columns:1fr; } }
  .panel{ border:1px solid var(--line); border-radius:var(--radius); padding:2rem; display:flex; flex-direction:column; gap:1rem; }
  .panel h3{ font-size:1.15rem; }
  .panel p{ color:var(--text-muted); margin:0; font-size:0.98rem; }
  .panel-icon{ width:2.6rem; height:2.6rem; border-radius:50%; display:flex; align-items:center; justify-content:center; background:var(--teal-soft); color:var(--teal); }
  .calendar-launch{ align-self:flex-start; background:none; border:none; padding:0; cursor:pointer; }
  .field-row{ display:flex; gap:0.9rem; }
  @media (max-width:420px){ .field-row{ flex-direction:column; } }
  .field{ flex:1; display:flex; flex-direction:column; gap:0.35rem; }
  .field label{ font-family:var(--mono); font-size:0.78rem; color:var(--text-muted); }
  .field input{ font-family:var(--body); font-size:1rem; padding:0.6rem 0.75rem; border:1px solid var(--line); border-radius:4px; background:var(--paper); }
  .field input:focus{ outline:2px solid var(--teal); outline-offset:1px; background:#fff; }

  /* ===========================================================
     PARTNERS / TEAM
  =========================================================== */
  .partners-grid{ display:grid; grid-template-columns:repeat(auto-fit, minmax(150px, 1fr)); gap:2.5rem; align-items:center; justify-items:center; margin-top:2rem; }
  .partners-grid a{ display:flex; align-items:center; justify-content:center; }
  .partners-grid img{ max-height:80px; width:auto; object-fit:contain; filter:grayscale(20%); opacity:0.85; transition:opacity 0.15s ease, filter 0.15s ease; }
  .partners-grid a:hover img{ opacity:1; filter:none; }

  .team-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(190px, 1fr)); gap:1.5rem; margin-top:2rem; }
  .team-card{ background:var(--card); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; text-align:center; text-decoration:none; color:var(--text); display:block; transition:border-color 0.15s ease, transform 0.15s ease; }
  .team-card:hover{ border-color:var(--teal); transform:translateY(-2px); }
  .team-card img{ width:100%; aspect-ratio:1/1; object-fit:cover; display:block; }
  .team-card .tc-body{ padding:1rem; }
  .team-card h5{ font-size:1rem; margin-bottom:0.2rem; }
  .team-card p{ font-family:var(--mono); font-size:0.8rem; color:var(--text-muted); margin:0; }

  /* ===========================================================
     MODAL
  =========================================================== */
  .modal-backdrop{ position:fixed; inset:0; background:rgba(18,20,28,0.6); display:flex; align-items:center; justify-content:center; padding:1.5rem; z-index:60; }
  .modal-backdrop[hidden]{ display:none; }
  .modal{ background:#fff; border-radius:var(--radius); max-width:520px; width:100%; padding:1.75rem; position:relative; }
  .modal h3{ font-size:1.2rem; margin-bottom:0.9rem; }
  .modal-close{ position:absolute; top:0.9rem; right:0.9rem; background:none; border:none; cursor:pointer; color:var(--text-muted); width:30px; height:30px; }
  .modal iframe{ width:100%; max-width:100%; border:1px solid var(--line); border-radius:4px; }
  .modal .modal-note{ font-size:0.9rem; color:var(--text-muted); margin-top:1rem; }