*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --bg: #0F172A; --bg2: #111827;
      --surface: #1E293B; --surface2: #162032;
      --slate: #64748B; --slate-bright: #94A3B8;
      --slate-glow: rgba(100,116,139,0.15);
      --slate-glow2: rgba(100,116,139,0.07);
      --accent: #7DD3FC; /* sky-300 — bright research accent */
      --cyan: #22D3EE;
      --emerald: #10B981;
      --white: #F8FAFC; --muted: #94A3B8;
      --border: rgba(100,116,139,0.22);
    }
    html { scroll-behavior: smooth; }
    body { background: var(--bg); color: var(--white); font-family: 'DM Sans', sans-serif; font-size: 16px; line-height: 1.7; overflow-x: hidden; }
    body::before { content:''; position:fixed; inset:0; background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E"); pointer-events:none; z-index:0; opacity:0.4; }
    section { position: relative; z-index: 1; }

    nav { position:fixed; top:0; left:0; right:0; z-index:100; display:flex; justify-content:space-between; align-items:center; padding:1.25rem 5%; background:rgba(15,23,42,0.88); backdrop-filter:blur(18px); border-bottom:1px solid var(--border); }
    .nav-logo { font-family:'Syne',sans-serif; font-weight:800; font-size:1rem; color:var(--white); display:flex; align-items:center; gap:0.5rem; text-decoration:none; }
    .nav-logo span { color:var(--accent); }
    .nav-right { display:flex; align-items:center; gap:2rem; }
    .nav-links { display:flex; gap:2rem; }
    .nav-links a { font-family:'DM Mono',monospace; font-size:0.75rem; color:var(--muted); text-decoration:none; letter-spacing:0.08em; text-transform:uppercase; transition:color 0.2s; }
    .nav-links a:hover { color:var(--accent); }
    .nav-platform { font-family:'DM Mono',monospace; font-size:0.72rem; color:var(--muted); text-decoration:none; letter-spacing:0.08em; text-transform:uppercase; border:1px solid var(--border); padding:0.35rem 0.8rem; border-radius:6px; transition:all 0.2s; }
    .nav-platform:hover { color:var(--cyan); border-color:rgba(34,211,238,0.3); }
    .nav-hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:4px; background:none; border:none; }
    .nav-hamburger span { display:block; width:22px; height:2px; background:var(--muted); border-radius:2px; }
    .nav-mobile { display:none; flex-direction:column; background:rgba(15,23,42,0.97); border-top:1px solid var(--border); padding:1rem 5%; position:fixed; top:62px; left:0; right:0; z-index:99; }
    .nav-mobile a { font-family:'DM Mono',monospace; font-size:0.85rem; color:var(--muted); text-decoration:none; letter-spacing:0.08em; text-transform:uppercase; padding:0.75rem 0; border-bottom:1px solid rgba(255,255,255,0.04); transition:color 0.2s; }
    .nav-mobile a:last-child { border-bottom:none; }
    .nav-mobile a:hover { color:var(--accent); }
    .nav-mobile.open { display:flex; }

    #hero { min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; padding:10rem 5% 6rem; overflow:hidden; }
    .hero-glow { position:absolute; width:600px; height:600px; border-radius:50%; background:radial-gradient(circle, rgba(100,116,139,0.1) 0%, transparent 70%); top:50%; left:50%; transform:translate(-50%,-50%); pointer-events:none; }
    .hero-badge { display:inline-flex; align-items:center; gap:0.5rem; font-family:'DM Mono',monospace; font-size:0.72rem; letter-spacing:0.12em; text-transform:uppercase; color:var(--accent); background:var(--slate-glow2); border:1px solid var(--border); padding:0.4rem 1rem; border-radius:999px; margin-bottom:2rem; animation:fadeUp 0.6s ease both; }
    .badge-dot { width:6px; height:6px; border-radius:50%; background:var(--accent); animation:blink 3s ease infinite; }
    @keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.4} }
    h1 { font-family:'Syne',sans-serif; font-weight:800; font-size:clamp(2rem,5vw,4rem); line-height:1.15; letter-spacing:-0.02em; margin-bottom:1.5rem; animation:fadeUp 0.7s 0.1s ease both; }
    h1 .accent { color:var(--accent); }
    .hero-sub { font-size:clamp(1rem,2vw,1.15rem); color:var(--muted); max-width:520px; margin:0 auto 2.8rem; font-weight:300; animation:fadeUp 0.7s 0.2s ease both; }

    .lab-note { display:flex; align-items:flex-start; gap:0.8rem; background:var(--slate-glow2); border:1px solid var(--border); border-left:3px solid var(--accent); border-radius:8px; padding:1.2rem 1.5rem; max-width:580px; margin:0 auto 2rem; animation:fadeUp 0.7s 0.3s ease both; text-align:left; }
    .lab-note-icon { flex-shrink:0; margin-top:0.1rem; display: flex; align-items: center; }
    .lab-note p { font-family:'DM Mono',monospace; font-size:0.8rem; color:var(--muted); line-height:1.7; }
    .lab-note strong { color:var(--accent); }

    .hero-stat-bar { display:flex; gap:2.5rem; flex-wrap:wrap; justify-content:center; margin-top:4rem; padding-top:3rem; border-top:1px solid var(--border); animation:fadeUp 0.7s 0.45s ease both; }
    .stat { text-align:center; }
    .stat-num { font-family:'Syne',sans-serif; font-size:1.6rem; font-weight:700; color:var(--accent); }
    .stat-label { font-size:0.75rem; color:var(--muted); font-family:'DM Mono',monospace; text-transform:uppercase; letter-spacing:0.08em; }
    @keyframes fadeUp { from{opacity:0;transform:translateY(24px)} to{opacity:1;transform:translateY(0)} }

    .section-label { font-family:'DM Mono',monospace; font-size:0.72rem; letter-spacing:0.14em; text-transform:uppercase; color:var(--accent); margin-bottom:1rem; }
    .section-title { font-family:'Syne',sans-serif; font-size:clamp(1.8rem,4vw,2.8rem); font-weight:700; line-height:1.2; margin-bottom:1rem; }

    /* VISION */
    #vision { padding:7rem 5%; background:var(--surface2); border-top:1px solid var(--border); }
    .vision-inner { max-width:1100px; margin:0 auto; display:grid; grid-template-columns:1fr 1fr; gap:4rem; align-items:start; }
    .vision-copy p { color:var(--muted); margin-bottom:1.5rem; font-size:1rem; }
    .vision-goals { display:flex; flex-direction:column; gap:0.7rem; }
    .goal-row { display:flex; align-items:flex-start; gap:0.8rem; padding:1rem 1.2rem; background:var(--surface); border:1px solid var(--border); border-radius:10px; }
    .goal-icon { flex-shrink:0; margin-top:0.1rem; display: flex; align-items: center; }
    .goal-title { font-family:'Syne',sans-serif; font-size:0.9rem; font-weight:700; margin-bottom:0.2rem; }
    .goal-desc { font-size:0.8rem; color:var(--muted); }

    /* MILESTONES */
    #milestones { padding:7rem 5%; }
    .milestones-inner { max-width:800px; margin:0 auto; }
    .milestones-header { text-align:center; margin-bottom:3.5rem; }
    .milestones-header p { color:var(--muted); font-size:1rem; margin-top:0.5rem; }
    .milestone-list { display:flex; flex-direction:column; }
    .milestone { display:grid; grid-template-columns:56px 1fr; gap:1.5rem; padding:1.8rem 0; border-bottom:1px solid rgba(255,255,255,0.04); align-items:start; }
    .milestone:last-child { border-bottom:none; }
    .m-num { width:40px; height:40px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-family:'DM Mono',monospace; font-size:0.8rem; flex-shrink:0; }
    .m-num.active { background:var(--slate-glow); border:1px solid rgba(100,116,139,0.35); color:var(--accent); }
    .m-num.next { background:rgba(255,255,255,0.04); border:1px solid rgba(255,255,255,0.08); color:var(--muted); }
    .m-label { font-family:'DM Mono',monospace; font-size:0.65rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--accent); margin-bottom:0.2rem; }
    .m-name { font-family:'Syne',sans-serif; font-size:1rem; font-weight:700; margin-bottom:0.3rem; }
    .m-desc { font-size:0.88rem; color:var(--muted); }
    .m-items { display:flex; flex-wrap:wrap; gap:0.4rem; margin-top:0.8rem; }
    .m-item { font-family:'DM Mono',monospace; font-size:0.67rem; padding:0.2rem 0.55rem; border-radius:4px; }
    .m-item.todo { background:rgba(255,255,255,0.04); border:1px solid rgba(255,255,255,0.08); color:var(--muted); }

    /* ROADMAP VISION */
    #longterm { padding:6rem 5%; background:var(--surface2); border-top:1px solid var(--border); }
    .lt-inner { max-width:900px; margin:0 auto; display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:1rem; }
    .lt-card { background:var(--surface); border:1px solid var(--border); border-radius:10px; padding:1.5rem; }
    .lt-icon { margin-bottom:0.7rem; display: flex; }
    .lt-title { font-family:'Syne',sans-serif; font-size:0.9rem; font-weight:700; margin-bottom:0.4rem; color:var(--accent); }
    .lt-desc { font-size:0.82rem; color:var(--muted); line-height:1.6; }

    #contact { padding:6rem 5%; text-align:center; }
    .contact-box { max-width:480px; margin:2rem auto 0; background:var(--surface); border:1px solid var(--border); border-radius:12px; padding:2.5rem; }
    .contact-box p { color:var(--muted); font-size:0.95rem; margin-bottom:1.4rem; }
    .contact-email { display:inline-block; font-family:'DM Mono',monospace; font-size:0.95rem; color:var(--accent); text-decoration:none; padding:0.5rem 1rem; border:1px solid var(--border); border-radius:6px; transition:border-color 0.2s; }
    .contact-email:hover { border-color:var(--accent); }

    footer { padding:2.5rem 5%; border-top:1px solid var(--border); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:1rem; position:relative; z-index:1; }
    .footer-logo { font-family:'Syne',sans-serif; font-weight:800; font-size:0.95rem; text-decoration:none; color:var(--white); }
    .footer-logo span { color:var(--accent); }
    .footer-links { display:flex; gap:1.8rem; flex-wrap:wrap; }
    .footer-links a { font-family:'DM Mono',monospace; font-size:0.72rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--muted); text-decoration:none; transition:color 0.2s; }
    .footer-links a:hover { color:var(--accent); }
    .footer-copy { font-family:'DM Mono',monospace; font-size:0.72rem; color:var(--muted); opacity:0.5; }

    .reveal { opacity:0; transform:translateY(20px); transition:opacity 0.7s ease, transform 0.7s ease; }
    .reveal.visible { opacity:1; transform:none; }

    @media(max-width:768px){
      .vision-inner { grid-template-columns:1fr; gap:3rem; }
      .nav-links{display:none} .nav-hamburger{display:flex} .nav-right{gap:1rem}
      #hero{padding:7rem 5% 4rem} h1{font-size:clamp(1.9rem,8vw,2.8rem)}
      .hero-stat-bar{gap:1.5rem;margin-top:2.5rem;padding-top:2rem} .stat-num{font-size:1.3rem}
      footer{flex-direction:column;text-align:center;align-items:center} .footer-links{justify-content:center;gap:1rem}
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
      html { scroll-behavior: auto; }
      .reveal { opacity: 1; transform: none; }
    }
    .directions-wrap { max-width: 1100px; margin: 0 auto; }
    .directions-header { text-align: center; margin-bottom: 3rem; }
    .directions-sub { color: var(--muted); font-size: 1rem; max-width: 500px; margin: 0.5rem auto 0; }
    .footer-links .footer-platform { color: var(--cyan); }
  
/* Skip-to-content — WCAG 2.4.1 Level A */
.skip-link {
  position: absolute;
  top: -48px;
  left: 1rem;
  background: #10B981;
  color: #0F172A;
  padding: 0.5rem 1.1rem;
  border-radius: 0 0 6px 6px;
  z-index: 9999;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 0; outline: 2px solid #0F172A; outline-offset: 2px; }