:root {
    --blue: #0000FF;
    --blue-10: #E6E6FF;
    --blue-tint-1: #0000FF;
    --blue-tint-2: #3D3DFF;
    --blue-tint-3: #1E1E99;
    --blue-tint-4: #6666FF;
    --ink: #0A0A14;
    --ink-secondary: #4A4A5A;
    --ink-muted: #8A8A9A;
    --surface: #FFFFFF;
    --surface-alt: #F5F5FA;
    --border: #E4E4EF;
  }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    font-family: 'Urbanist', -apple-system, sans-serif;
    background: var(--surface-alt);
    color: var(--ink);
  }

  .wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

  header.hero {
    background: linear-gradient(180deg, #F0F0FF 0%, var(--surface-alt) 100%);
    padding: 72px 0 48px;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
  }

  header.hero::before {
    content: "";
    position: absolute;
    top: -120px; right: -120px;
    width: 340px; height: 340px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,0,255,0.10) 0%, rgba(0,0,255,0) 70%);
  }

  .eyebrow-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13.5px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--blue);
    background: var(--blue-10);
    padding: 6px 14px;
    border-radius: 100px;
  }
  .eyebrow.updated {
    color: var(--ink-secondary);
    background: var(--surface);
    border: 1px solid var(--border);
    font-weight: 600;
  }
  .eyebrow.updated svg { color: var(--blue); flex-shrink: 0; }

  h1 {
    font-size: clamp(35px, 5.5vw, 57px);
    font-weight: 800;
    line-height: 1.05;
    margin: 0 0 16px;
    letter-spacing: -0.02em;
    color: var(--ink);
    position: relative;
  }

  h1 .accent { color: var(--blue); }

  .hero-sub {
    font-size: 20px;
    color: var(--ink-secondary);
    max-width: 520px;
    margin: 0 0 32px;
    line-height: 1.5;
    position: relative;
  }

  .stat-row { display: flex; gap: 32px; flex-wrap: wrap; position: relative; }

  .stat { display: flex; flex-direction: column; }
  .stat-num { font-size: 29px; font-weight: 800; color: var(--blue); }
  .stat-label { font-size: 14px; color: var(--ink-muted); }

  .progress-wrap { margin-top: 40px; max-width: 400px; position: relative; }
  .progress-label { font-size: 14px; color: var(--ink-secondary); margin-bottom: 8px; display: flex; justify-content: space-between; }
  .progress-track { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
  .progress-fill { height: 100%; width: 33%; background: var(--blue); border-radius: 3px; }

  main { padding: 48px 0 80px; }

  .section-title {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 24px;
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
  }
  .section-title span { font-size: 15px; font-weight: 500; color: var(--ink-muted); }

  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
  }

  .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.15s ease, transform 0.15s ease;
  }
  .card:hover { box-shadow: 0 0 0 2px var(--blue), 0 8px 24px rgba(10,10,20,0.08); transform: translateY(-2px); }
  .card.locked { opacity: 0.55; cursor: default; pointer-events: none; }
  .card.current { box-shadow: 0 0 0 2px var(--blue); }

  .card-photo { position: relative; height: 150px; background: var(--surface-alt); }
  .card-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

  .card-tag {
    position: absolute; top: 10px; left: 10px;
    font-size: 13px; font-weight: 700; color: var(--blue);
    background: rgba(255,255,255,0.95);
    padding: 4px 10px; border-radius: 100px;
    display: flex; align-items: center; gap: 4px;
  }

  .card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
  .card-num { font-size: 13px; font-weight: 700; color: var(--blue); margin: 0 0 4px; }
  .card-title { font-size: 18px; font-weight: 700; margin: 0 0 6px; line-height: 1.3; }

  .card-desc { font-size: 14px; color: var(--ink-secondary); line-height: 1.5; margin: 0; }


  footer { padding: 40px 0 48px; text-align: center; background: var(--surface); border-top: 1px solid var(--border); margin-top: 24px; }
  .footer-label { font-size: 13px; color: var(--ink-muted); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
  .sponsors { display: flex; justify-content: center; align-items: center; gap: 32px; flex-wrap: wrap; }
  .sponsors img {
    height: 28px; width: auto;
    filter: grayscale(1); opacity: 0.55;
    transition: filter 0.2s ease, opacity 0.2s ease;
  }
  .sponsors img:hover { filter: grayscale(0); opacity: 1; }

  .copyright {
    margin-top: 24px;
    font-size: 13px;
    color: var(--ink-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
  }
  .copyright a { color: var(--ink-muted); text-decoration: underline; }
  .copyright a:hover { color: var(--blue); }

  .hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    position: relative;
  }

  .video-embed {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(10,10,20,0.12);
    background: var(--ink);
  }
  .video-embed iframe {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;
  }

  @media (max-width: 600px) {
    .stat-row { gap: 20px; }
    header.hero { padding: 48px 0 40px; }
  }

  .navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
  }
  .nav-inner {
    max-width: 1080px; margin: 0 auto; padding: 0 24px;
    height: 64px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 16px;
  }
  .nav-left { justify-self: start; }
  .nav-logo-wrap { justify-self: center; }
  .nav-right { justify-self: end; display: flex; align-items: center; gap: 10px; }
  .nav-logo { height: 34px; width: auto; display: block; }

  .nav-menu { position: relative; }
  .menu-btn {
    display: flex; align-items: center; gap: 8px;
    cursor: pointer; list-style: none;
    padding: 8px 14px; border-radius: 100px;
    border: 1px solid var(--border);
    font-size: 15px; font-weight: 600; color: var(--ink);
  }
  .menu-btn::-webkit-details-marker { display: none; }
  .menu-btn .chev { font-size: 10px; color: var(--ink-muted); }

  .nav-account { position: relative; }
  .account-btn {
    display: flex; align-items: center; gap: 10px;
    cursor: pointer; list-style: none;
    padding: 6px 8px 6px 6px; border-radius: 100px;
    border: 1px solid var(--border);
  }
  .account-btn::-webkit-details-marker { display: none; }
  .avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--blue); color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700;
  }
  .account-name { font-size: 14px; font-weight: 600; color: var(--ink); }
  .account-btn .chev { font-size: 10px; color: var(--ink-muted); margin-left: 2px; }

  .account-menu {
    position: absolute; top: calc(100% + 8px); right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(10,10,20,0.12);
    min-width: 200px;
    padding: 8px;
  }
  .nav-menu .account-menu { left: 0; right: auto; }
  .account-menu a {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 10px; border-radius: 8px;
    font-size: 14px; font-weight: 500; color: var(--ink);
    text-decoration: none;
  }
  .account-menu a:hover { background: var(--surface-alt); }
  .account-menu a.danger { color: #C4293D; }
  .account-menu hr { border: none; border-top: 1px solid var(--border); margin: 6px 4px; }

  .nav-cta {
    font-size: 14px; font-weight: 700; color: white;
    background: var(--blue);
    padding: 9px 18px; border-radius: 100px;
    text-decoration: none;
  }
  .nav-cta-ghost {
    font-size: 14px; font-weight: 700; color: var(--ink);
    padding: 9px 14px; border-radius: 100px;
    text-decoration: none;
  }
  .nav-cta-ghost:hover { background: var(--surface-alt); }
  .cta-short { display: none; }

  @media (max-width: 780px) {
    .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  }

  @media (max-width: 520px) {
    .nav-inner { padding: 0 14px; gap: 8px; }
    .nav-logo { height: 26px; }
    .menu-label { display: none; }
    .menu-btn { padding: 8px 10px; }
    .nav-right { gap: 6px; }
    .nav-cta-ghost { padding: 8px 10px; font-size: 13px; }
    .nav-cta { padding: 8px 14px; font-size: 13px; }
    .cta-full { display: none; }
    .cta-short { display: inline; }
  }