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

    :root {
      --red:        #8B1A1A;
      --red-dark:   #6a1212;
      --red-light:  #c0392b;
      --gold:       #c9a84c;
      --cream:      #fdf6ee;
      --white:      #ffffff;
      --gray-light: #f5f5f5;
      --gray:       #888;
      --text:       #1a1a1a;
      --shadow:     0 4px 24px rgba(139,26,26,.14);
      --radius:     14px;
    }

    body {
      font-family: 'Source Sans 3', sans-serif;
      background: var(--cream);
      color: var(--text);
      min-height: 100vh;
    }

    /* ─── PAGE HEADER ──────────────────────────────────────── */
    .cbot-hero {
      margin-top: 70px;
      background: linear-gradient(135deg, var(--red-dark) 0%, var(--red) 60%, var(--red-light) 100%);
      color: var(--white);
      text-align: center;
      padding: 64px 24px 52px;
      position: relative;
      overflow: hidden;
    }
    .cbot-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
      pointer-events: none;
    }
    .cbot-hero .logo-badge {
      width: 76px; height: 76px;
      background: var(--white);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 20px;
      box-shadow: 0 0 0 6px rgba(255,255,255,.18);
      overflow: hidden;
    }
    .cbot-hero .logo-badge img { width: 60px; height: 60px; object-fit: contain; }
    .cbot-hero h1 {
      font-family: 'Playfair Display', serif;
      font-size: clamp(2rem, 5vw, 3rem);
      letter-spacing: .04em;
      margin-bottom: 10px;
    }
    .cbot-hero p {
      opacity: .82;
      font-size: 1.05rem;
      max-width: 560px;
      margin: 0 auto;
      font-weight: 300;
    }
    .cbot-hero .year-badge {
      display: inline-block;
      background: rgba(255,255,255,.15);
      border: 1px solid rgba(255,255,255,.3);
      border-radius: 99px;
      padding: 4px 18px;
      font-size: .85rem;
      letter-spacing: .12em;
      font-weight: 600;
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    /* ─── REGION TABS ──────────────────────────────────────── */
    .region-nav-wrap {
      background: var(--white);
      border-bottom: 2px solid #e8ddd6;
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 2px 12px rgba(0,0,0,.07);
    }
    .region-nav {
      display: flex;
      overflow-x: auto;
      scroll-behavior: smooth;
      -ms-overflow-style: none;
      scrollbar-width: none;
      padding: 0 12px;
      max-width: 1400px;
      margin: 0 auto;
    }
    .region-nav::-webkit-scrollbar { display: none; }
    .region-tab {
      flex-shrink: 0;
      padding: 14px 20px;
      font-size: .82rem;
      font-weight: 700;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--gray);
      cursor: pointer;
      border: none;
      background: none;
      border-bottom: 3px solid transparent;
      transition: color .2s, border-color .2s;
      white-space: nowrap;
      position: relative;
      top: 2px;
    }
    .region-tab:hover { color: var(--red); }
    .region-tab.active { color: var(--red); border-bottom-color: var(--red); }

    /* ─── MAIN CONTENT ─────────────────────────────────────── */
    .cbot-main {
      max-width: 1100px;
      margin: 0 auto;
      padding: 40px 24px 80px;
    }

    .region-panel { display: none; }
    .region-panel.active { display: block; }

    .region-title-bar {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-bottom: 36px;
      padding-bottom: 20px;
      border-bottom: 2px solid #e2d5cc;
    }
    .region-label {
      background: var(--red);
      color: var(--white);
      font-family: 'Playfair Display', serif;
      font-size: 2.6rem;
      font-weight: 700;
      padding: 10px 26px;
      border-radius: 10px;
      line-height: 1;
      letter-spacing: .02em;
      white-space: nowrap;
      box-shadow: var(--shadow);
    }
    .region-info h2 {
      font-family: 'Playfair Display', serif;
      font-size: 1.4rem;
      color: var(--red-dark);
      line-height: 1.25;
    }
    .region-info .cbot-year {
      font-size: .88rem;
      font-weight: 600;
      color: var(--gold);
      letter-spacing: .12em;
      text-transform: uppercase;
      margin-top: 4px;
    }

    /* ─── GROUP IMAGE SECTIONS ─────────────────────────────── */
    .group-section {
      margin-bottom: 32px;
    }

    .group-section-label {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .group-section-label .label-text {
      font-size: .78rem;
      text-transform: uppercase;
      letter-spacing: .16em;
      font-weight: 700;
      color: var(--gray);
    }
    .group-section-label::after {
      content: '';
      flex: 1;
      height: 1px;
      background: linear-gradient(90deg, #ddd, transparent);
    }

    /* The group image container */
    .group-image-wrap {
      width: 100%;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 4px 28px rgba(139,26,26,.13);
      background: #f0e8e0;
      border: 2px solid #e2d5cc;
      position: relative;
    }
    .group-image-wrap img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* Placeholder when no image is uploaded yet */
    .group-image-placeholder {
      width: 100%;
      padding: 56px 32px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 14px;
      color: #bba89a;
      background: repeating-linear-gradient(
        45deg,
        #f9f2eb,
        #f9f2eb 10px,
        #f4ede3 10px,
        #f4ede3 20px
      );
      min-height: 180px;
    }
    .group-image-placeholder svg {
      width: 48px; height: 48px;
      opacity: .5;
    }
    .group-image-placeholder .placeholder-label {
      font-size: .85rem;
      font-weight: 600;
      letter-spacing: .1em;
      text-transform: uppercase;
      opacity: .7;
    }
    .group-image-placeholder .placeholder-hint {
      font-size: .78rem;
      opacity: .55;
      font-family: monospace;
    }

    /* Section divider */
    .section-divider {
      height: 1px;
      background: linear-gradient(90deg, transparent, #ddd 30%, #ddd 70%, transparent);
      margin: 28px 0;
    }


    /* ─── RESPONSIVE ───────────────────────────────────────── */
    @media (max-width: 600px) {
      .region-title-bar { flex-direction: column; align-items: flex-start; }
      .region-label { font-size: 1.8rem; }
    }