:root {
    --bg: #07080c;
    --bg-soft: #0d0f16;
    --card: #11131d;
    --card-hover: #161927;
    --border: #20232f;
    --text: #e7e9f0;
    --muted: #9197a8;
    --faint: #6b7080;
    --accent: #7c5cff;
    --accent-2: #2dd4bf;
    --accent-glow: rgba(124, 92, 255, 0.35);
    --radius: 16px;
    --maxw: 1080px;
  }

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

  html { scroll-behavior: smooth; scroll-padding-top: 88px; }

  body {
    font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  a { color: inherit; text-decoration: none; }

  h1, h2, h3 { font-family: 'Montserrat', sans-serif; line-height: 1.15; letter-spacing: -0.02em; }

  ::selection { background: var(--accent-glow); }

  /* ---------- Nav ---------- */
  header.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: rgba(7, 8, 12, 0.72);
    border-bottom: 1px solid var(--border);
  }
  .nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }
  .brand { display: flex; align-items: center; font-family: 'Montserrat'; font-weight: 700; font-size: 16px; }
  .nav-links { display: flex; gap: 26px; align-items: center; }
  .nav-links a { color: var(--muted); font-size: 14px; font-weight: 500; transition: color .2s; }
  .nav-links a:hover { color: var(--text); }
  .nav-cta {
    background: linear-gradient(135deg, var(--accent), #5a3fd6);
    color: #fff; padding: 9px 20px; border-radius: 999px; font-size: 14px; font-weight: 600;
    box-shadow: 0 6px 20px var(--accent-glow); transition: transform .15s, box-shadow .2s;
  }
  .nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 28px var(--accent-glow); }
  .menu-btn { display: none; background: none; border: 0; color: var(--text); cursor: pointer; }

  @media (max-width: 820px) {
    .nav-links { display: none; }
  }

  /* ---------- Layout ---------- */
  section { padding: 88px 24px; }
  .wrap { max-width: var(--maxw); margin: 0 auto; }
  .eyebrow { color: var(--accent-2); font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 14px; }
  h2.section-title { font-size: clamp(30px, 5vw, 50px); font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
  .section-sub { color: var(--muted); max-width: 620px; margin-bottom: 44px; font-size: 16px; }

  /* ---------- Hero ---------- */
  .hero {
    position: relative;
    padding: 120px 24px 100px;
    text-align: center;
    overflow: hidden;
  }
  .hero-glow {
    position: absolute; inset: 0;
    background:
      radial-gradient(620px 360px at 50% -8%, rgba(124,92,255,0.30), transparent 60%),
      radial-gradient(520px 320px at 85% 25%, rgba(45,212,191,0.16), transparent 60%),
      radial-gradient(420px 280px at 12% 35%, rgba(124,92,255,0.14), transparent 60%);
    pointer-events: none;
  }
  .hero-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 70%);
    opacity: 0.4;
    pointer-events: none;
  }
  .hero-inner { position: relative; max-width: 860px; margin: 0 auto; }
  .badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--card); border: 1px solid var(--border);
    padding: 7px 16px; border-radius: 999px; font-size: 13px; color: var(--muted);
    margin-bottom: 28px;
  }
  .badge .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 0 rgba(45,212,191,0.6); animation: pulse 2s infinite; }
  @keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(45,212,191,0); } 100% { box-shadow: 0 0 0 0 rgba(45,212,191,0); } }
  .hero h1 {
    font-size: clamp(44px, 8vw, 88px);
    background: linear-gradient(180deg, #fff 30%, #b9b3e6 100%);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    margin-bottom: 18px;
  }
  .hero .tagline { font-family: 'Montserrat'; font-size: clamp(18px, 3vw, 24px); color: var(--accent-2); font-weight: 600; margin-bottom: 22px; }
  .hero p.lede { font-size: 18px; color: var(--muted); max-width: 620px; margin: 0 auto 38px; }
  .hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
  .btn {
    padding: 14px 30px; border-radius: 999px; font-weight: 600; font-size: 15px;
    transition: transform .15s, box-shadow .2s, background .2s, border-color .2s; display: inline-flex; align-items: center; gap: 9px;
  }
  .btn-primary { background: linear-gradient(135deg, var(--accent), #5a3fd6); color: #fff; box-shadow: 0 8px 30px var(--accent-glow); }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px var(--accent-glow); }
  .btn-ghost { background: transparent; border: 2px solid rgba(124, 92, 255, 0.45); color: var(--text); }
  .btn-ghost:hover { background: rgba(124, 92, 255, 0.12); border-color: rgba(124, 92, 255, 0.75); transform: translateY(-2px); }

  .hero-meta { display: flex; gap: 36px; justify-content: center; flex-wrap: wrap; margin-top: 56px; }
  .hero-meta .item { text-align: center; }
  .hero-meta .k { font-family: 'Montserrat'; font-size: 22px; font-weight: 700; color: #fff; }
  .hero-meta .v { font-size: 13px; color: var(--faint); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 4px; }

  /* ---------- Cards / grids ---------- */
  .grid { display: grid; gap: 18px; }
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  @media (max-width: 760px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

  .card {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 26px; transition: border-color .2s, transform .2s, background .2s;
  }
  .card:hover { border-color: #34384a; transform: translateY(-3px); background: var(--card-hover); }
  .card h3 { font-size: 19px; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
  .card p { color: var(--muted); font-size: 15px; }
  .card .ic { font-size: 22px; }
  .card a.link { color: var(--accent-2); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 5px; margin-top: 14px; }
  .card a.link:hover { gap: 9px; }

  /* judges */
  .judges-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
  @media (max-width: 760px) { .judges-grid { grid-template-columns: 1fr; } }
  .judge { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; display: flex; gap: 20px; transition: border-color .2s, transform .2s, background .2s; }
  .judge:hover { border-color: #34384a; transform: translateY(-3px); background: var(--card-hover); }
  .judge img { width: 104px; height: 104px; border-radius: 14px; object-fit: cover; object-position: center top; flex: 0 0 auto; border: 1px solid var(--border); background: var(--bg-soft); }
  .judge .j-name { font-family: 'Montserrat'; font-weight: 700; font-size: 18px; line-height: 1.25; }
  .judge .j-role { color: var(--accent-2); font-size: 13px; font-weight: 600; margin: 4px 0 11px; }
  .judge .j-bio { color: var(--muted); font-size: 13.5px; line-height: 1.6; }
  @media (max-width: 480px) { .judge { flex-direction: column; } .judge img { width: 88px; height: 88px; } }

  /* steps */
  .steps { counter-reset: step; display: grid; gap: 14px; }
  .step {
    display: flex; gap: 16px; align-items: flex-start;
    background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px;
    transition: border-color .2s, transform .15s;
  }
  .step:hover { border-color: #34384a; transform: translateX(3px); }
  .step .num {
    counter-increment: step; flex: 0 0 auto;
    width: 32px; height: 32px; border-radius: 9px;
    background: linear-gradient(135deg, var(--accent), #5a3fd6); color: #fff;
    display: grid; place-items: center; font-weight: 700; font-size: 14px; font-family: 'Montserrat';
  }
  .step .num::before { content: counter(step); }
  .step .body { flex: 1; }
  .step .body strong { font-weight: 600; }
  .step .body a { color: var(--accent-2); font-weight: 600; }
  .step .body a:hover { text-decoration: underline; }

  /* setup blocks */
  .setup-block { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; margin-bottom: 18px; }
  .setup-block > h3 { font-size: 22px; margin-bottom: 6px; display: flex; align-items: center; gap: 12px; }
  .setup-block .tag { font-size: 12px; font-weight: 700; color: var(--accent-2); border: 1px solid var(--border); padding: 3px 10px; border-radius: 999px; }
  .setup-block p.intro { color: var(--muted); margin-bottom: 18px; }
  .setup-block h4 { font-family: 'Inter'; font-weight: 700; font-size: 15px; margin: 20px 0 10px; color: var(--text); }
  .setup-block ol, .setup-block ul { padding-left: 22px; color: var(--muted); }
  .setup-block li { margin-bottom: 7px; }
  .setup-block li::marker { color: var(--accent); }
  .setup-block a { color: var(--accent-2); font-weight: 500; }
  .setup-block a:hover { text-decoration: underline; }
  .pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
  .pill { background: var(--bg-soft); border: 1px solid var(--border); padding: 5px 12px; border-radius: 999px; font-size: 13px; color: var(--muted); }

  .note {
    border-left: 3px solid var(--accent); background: rgba(124,92,255,0.07);
    padding: 14px 18px; border-radius: 0 10px 10px 0; margin-top: 18px; font-size: 14px; color: var(--muted);
  }
  .note strong { color: var(--text); }

  /* checklist */
  .checklist { display: grid; gap: 10px; }
  .check { display: flex; gap: 12px; align-items: flex-start; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; }
  .check .box { flex: 0 0 auto; width: 22px; height: 22px; border-radius: 6px; border: 1px solid var(--accent); display: grid; place-items: center; color: var(--accent-2); font-size: 13px; margin-top: 1px; }
  .check span { color: var(--muted); }

  /* ---------- FAQ accordion ---------- */
  .faq-list { display: grid; gap: 12px; }
  .faq {
    background: var(--card); border: 1px solid var(--border); border-radius: 14px; overflow: hidden;
    transition: border-color .2s;
  }
  .faq[open] { border-color: #3a3f55; }
  .faq summary {
    list-style: none; cursor: pointer; padding: 18px 22px;
    display: flex; justify-content: space-between; align-items: center; gap: 16px;
    font-weight: 600; font-size: 16px; color: var(--text);
  }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary .plus { flex: 0 0 auto; width: 24px; height: 24px; position: relative; transition: transform .25s; color: var(--accent); }
  .faq summary .plus::before, .faq summary .plus::after { content: ''; position: absolute; background: currentColor; border-radius: 2px; }
  .faq summary .plus::before { top: 11px; left: 4px; width: 16px; height: 2px; }
  .faq summary .plus::after { top: 4px; left: 11px; width: 2px; height: 16px; transition: opacity .25s; }
  .faq[open] summary .plus { transform: rotate(90deg); }
  .faq[open] summary .plus::after { opacity: 0; }
  .faq .answer { padding: 0 22px 20px; color: var(--muted); font-size: 15px; }
  .faq .answer a { color: var(--accent-2); font-weight: 500; }
  .faq .answer a:hover { text-decoration: underline; }
  .faq .answer ul { padding-left: 20px; margin-top: 8px; }
  .faq .answer li { margin-bottom: 4px; }

  .faq-cats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
  .faq-cat { font-size: 13px; color: var(--faint); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; padding: 6px 0; }

  /* ---------- CTA band ---------- */
  .cta-band {
    position: relative; text-align: center; border-radius: 24px; overflow: hidden;
    background: linear-gradient(135deg, #14102b, #0c1a1c); border: 1px solid var(--border); padding: 64px 28px;
  }
  .cta-band::before { content: ''; position: absolute; inset: 0; background: radial-gradient(500px 240px at 50% 0%, var(--accent-glow), transparent 70%); }
  .cta-band > * { position: relative; }
  .cta-band h2 { font-size: clamp(28px, 4vw, 42px); margin-bottom: 14px; }
  .cta-band p { color: var(--muted); max-width: 520px; margin: 0 auto 30px; }

  /* ---------- Footer ---------- */
  footer { border-top: 1px solid var(--border); padding: 48px 24px 60px; }
  .foot-inner { max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
  .foot-brand { font-family: 'Montserrat'; font-weight: 700; font-size: 18px; margin-bottom: 8px; }
  .foot-col h5 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); margin-bottom: 12px; }
  .foot-col a { display: block; color: var(--muted); font-size: 14px; margin-bottom: 8px; transition: color .2s; }
  .foot-col a:hover { color: var(--text); }
  .foot-bottom { max-width: var(--maxw); margin: 36px auto 0; padding-top: 22px; border-top: 1px solid var(--border); color: var(--faint); font-size: 13px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
  .foot-cols { display: flex; gap: 56px; flex-wrap: wrap; }

  .safety { display:flex; gap:10px; align-items:flex-start; background: rgba(45,212,191,0.06); border:1px solid rgba(45,212,191,0.25); border-radius:12px; padding:14px 18px; margin-top:18px; font-size:14px; color:var(--muted); }
  .safety strong { color: var(--accent-2); }

  /* ---------- Winners page ---------- */
  .winner {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; transition: border-color .2s, transform .2s;
    display: grid; grid-template-columns: 300px 1fr;
  }
  .winner:hover { border-color: #34384a; transform: translateY(-3px); }
  .winner.first { border-color: rgba(124, 92, 255, 0.55); box-shadow: 0 10px 40px rgba(124,92,255,0.12); }
  .winner-photo { background: var(--bg-soft); position: relative; min-height: 240px; }
  .winner-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .winner-photo .ph {
    position: absolute; inset: 0; display: grid; place-items: center; text-align: center;
    color: var(--faint); font-size: 13px; padding: 20px; gap: 8px;
  }
  .winner-photo .ph .cam { font-size: 30px; opacity: 0.5; }
  .winner-body { padding: 28px 30px; }
  .winner-rank {
    display: inline-flex; align-items: center; gap: 8px; font-family: 'Montserrat';
    font-weight: 700; font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--accent-2); margin-bottom: 12px;
  }
  .winner-rank .medal { font-size: 20px; }
  .winner-project { font-family: 'Montserrat'; font-weight: 700; font-size: 24px; margin-bottom: 6px; }
  .winner-team { color: var(--accent); font-weight: 600; font-size: 15px; margin-bottom: 4px; }
  .winner-track {
    display: inline-block; font-size: 12px; color: var(--muted); background: var(--bg-soft);
    border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px; margin-bottom: 14px;
  }
  .winner-desc { color: var(--muted); font-size: 15px; line-height: 1.6; margin-bottom: 16px; }
  .winner-members { display: flex; flex-wrap: wrap; gap: 8px; }
  .winner-members .m { font-size: 13px; color: var(--text); background: var(--bg-soft); border: 1px solid var(--border); border-radius: 8px; padding: 5px 11px; }
  .winner-award { margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--accent-2); }
  @media (max-width: 720px) { .winner { grid-template-columns: 1fr; } .winner-photo { min-height: 200px; } }

  .winners-list { display: grid; gap: 20px; margin-bottom: 56px; }

  /* gallery */
  .gallery-cta {
    text-align: center; border: 1px solid var(--border); border-radius: 24px; overflow: hidden;
    background: linear-gradient(135deg, #14102b, #0c1a1c); padding: 56px 28px; position: relative;
  }
  .gallery-cta::before { content: ''; position: absolute; inset: 0; background: radial-gradient(500px 240px at 50% 0%, var(--accent-glow), transparent 70%); }
  .gallery-cta > * { position: relative; }

  /* photo gallery grid */
  .photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 30px; }
  @media (max-width: 700px) { .photo-grid { grid-template-columns: repeat(2, 1fr); } }
  .photo-grid a { display: block; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4 / 3; position: relative; }
  .photo-grid img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
  .photo-grid a:hover img { transform: scale(1.06); }
  .photo-grid a.more { display: grid; place-items: center; text-align: center; background: var(--bg-soft); color: var(--accent-2); font-weight: 700; font-size: 15px; padding: 16px; }

  /* full-width group/banner photo */
  .group-banner { margin: 0 auto; max-width: 1180px; padding: 0 24px; }
  .group-banner figure { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); position: relative; }
  .group-banner img { width: 100%; height: auto; display: block; }
  .group-banner figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 24px 22px 16px; font-size: 14px; color: #fff; background: linear-gradient(transparent, rgba(0,0,0,0.75)); font-weight: 500; }