:root{
    --bg: #0b0e13;
    --bg-elev: #12161d;
    --bg-elev-2: #171c25;
    --line: #232a35;
    --text: #e7eaf0;
    --text-dim: #8b93a5;
    --text-faint: #565f6f;
    --max: #f5a623;
    --min: #3e8bff;
    --maximin: #46e0b0;
    --radius: 10px;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'IBM Plex Sans', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
  }

  *{ box-sizing: border-box; }
  html{ scroll-behavior: smooth; }
  body{
    margin:0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }
  ::selection{ background: var(--maximin); color: #08110d; }

  a{ color: inherit; }
  :focus-visible{
    outline: 2px solid var(--maximin);
    outline-offset: 3px;
    border-radius: 4px;
  }

  .wrap{
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 32px;
  }

  .grid-bg{
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 64px 64px;
    opacity: 0.16;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, black 10%, transparent 75%);
  }

  header{
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
    background: rgba(11,14,19,0.72);
    border-bottom: 1px solid var(--line);
  }
  .nav{
    display:flex;
    align-items:center;
    justify-content: space-between;
    height: 64px;
  }
  .brand{
    display:flex;
    align-items: baseline;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 15px;
    letter-spacing: 0.02em;
    text-decoration:none;
  }
  .brand b{ font-weight:600; color: var(--text); }
  .brand span{ color: var(--text-faint); }
  .navlinks{
    display:flex;
    gap: 28px;
    list-style:none;
    margin:0; padding:0;
    font-family: var(--font-mono);
    font-size: 13px;
  }
  .navlinks a{
    text-decoration:none;
    color: var(--text-dim);
    position: relative;
    padding: 4px 0;
    transition: color .2s ease;
  }
  .navlinks a:hover{ color: var(--text); }
  .navlinks a::after{
    content:'';
    position:absolute;
    left:0; bottom:0;
    width:0%; height:1px;
    background: var(--maximin);
    transition: width .25s ease;
  }
  .navlinks a:hover::after{ width:100%; }
  .navlinks .idx{ color: var(--text-faint); margin-right: 6px; }

  .hero{
    padding: 96px 0 80px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items:center;
  }
  .eyebrow{
    font-family: var(--font-mono);
    font-size: 12.5px;
    letter-spacing: 0.14em;
    color: var(--text-faint);
    text-transform: uppercase;
    display:flex;
    align-items:center;
    gap: 10px;
    margin-bottom: 22px;
  }
  .eyebrow .dot{
    width:6px; height:6px; border-radius:50%;
    background: var(--maximin);
    box-shadow: 0 0 10px var(--maximin);
  }
  h1.title{
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(48px, 7vw, 84px);
    line-height: 0.98;
    margin: 0 0 20px;
    letter-spacing: -0.02em;
  }
  h1.title em{
    font-style: normal;
    background: linear-gradient(100deg, var(--max), var(--maximin) 55%, var(--min));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .lede{
    font-size: 17.5px;
    color: var(--text-dim);
    max-width: 46ch;
    margin: 0 0 32px;
  }
  .lede b{ color: var(--text); font-weight: 600; }

  .hero-cta{
    display:flex;
    gap: 14px;
    flex-wrap: wrap;
  }
  .btn{
    font-family: var(--font-mono);
    font-size: 13.5px;
    padding: 12px 20px;
    border-radius: 6px;
    text-decoration:none;
    display:inline-flex;
    align-items:center;
    gap: 8px;
    border: 1px solid var(--line);
    transition: border-color .2s ease, transform .2s ease, background .2s ease;
  }
  .btn-primary{
    background: var(--maximin);
    color: #08120e;
    border-color: var(--maximin);
    font-weight: 600;
  }
  .btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 10px 24px -10px rgba(70,224,176,0.55); }
  .btn-ghost{ color: var(--text-dim); }
  .btn-ghost:hover{ color: var(--text); border-color: var(--text-faint); transform: translateY(-2px); }

  .matrix-card{
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    position: relative;
  }
  .matrix-head{
    display:flex;
    justify-content: space-between;
    align-items:center;
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: .1em;
    margin-bottom: 16px;
  }
  .matrix-head button{
    background:none;
    border: 1px solid var(--line);
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 5px 10px;
    border-radius: 5px;
    cursor:pointer;
    text-transform:none;
    letter-spacing: normal;
    transition: all .2s ease;
  }
  .matrix-head button:hover{ color: var(--text); border-color: var(--text-faint); }

  .matrix{
    display:grid;
    grid-template-columns: 74px repeat(3, 1fr);
    gap: 8px;
  }
  .matrix .lbl{
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-faint);
    display:flex;
    align-items:center;
  }
  .matrix .colhead{
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-faint);
    text-align:center;
    padding-bottom: 4px;
  }
  .cell{
    background: var(--bg-elev-2);
    border: 1px solid var(--line);
    border-radius: 7px;
    height: 52px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-family: var(--font-mono);
    font-size: 16px;
    color: var(--text-dim);
    transition: all .5s cubic-bezier(.2,.8,.2,1);
  }
  .cell.rowmin{
    border-color: var(--min);
    color: var(--min);
    box-shadow: inset 0 0 0 1px var(--min);
  }
  .cell.winner{
    background: rgba(70,224,176,0.12);
    border-color: var(--maximin);
    color: var(--maximin);
    font-weight: 600;
    box-shadow: 0 0 0 1px var(--maximin), 0 0 22px -6px var(--maximin);
    transform: scale(1.04);
  }
  .matrix-foot{
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--text-dim);
    display:flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
  }
  .matrix-foot .val{ color: var(--maximin); font-weight: 600; }

  @media (prefers-reduced-motion: reduce){
    .cell{ transition: none; }
  }

  section{ padding: 88px 0; border-top: 1px solid var(--line); }
  .sec-head{
    display:flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 44px;
    gap: 20px;
    flex-wrap: wrap;
  }
  .sec-tag{
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--text-faint);
  }
  .sec-title{
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    margin: 6px 0 0;
    letter-spacing: -0.01em;
  }

  .about-grid{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
  }
  .about-text p{ color: var(--text-dim); font-size: 15.5px; }
  .about-text b{ color: var(--text); font-weight: 600; }
  .principles{ list-style:none; margin:0; padding:0; display:grid; gap: 18px; }
  .principles li{
    display:grid;
    grid-template-columns: 28px 1fr;
    gap: 14px;
    align-items:start;
    padding: 16px;
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: 8px;
  }
  .principles .sym{
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 14px;
  }
  .principles .sym.mx{ color: var(--max); }
  .principles .sym.mn{ color: var(--min); }
  .principles .sym.eq{ color: var(--maximin); }
  .principles h4{ margin: 0 0 4px; font-size: 14.5px; font-family: var(--font-display); }
  .principles p{ margin:0; font-size: 13.5px; color: var(--text-dim); }

  .work-grid{
    display:grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .card{
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px;
    position: relative;
    overflow: hidden;
    transition: border-color .25s ease, transform .25s ease;
    text-decoration: none;
    display: block;
  }
  .card:hover{ transform: translateY(-4px); }
  .card::before{
    content:'';
    position:absolute;
    top:0; left:0; right:0; height: 3px;
    background: var(--line);
    transition: background .25s ease;
  }
  .card:nth-child(1)::before{ background: var(--max); }
  .card:nth-child(2)::before{ background: var(--min); }
  .card:nth-child(3)::before{ background: var(--min); }
  .card:nth-child(4)::before{ background: var(--max); }
  .card.featured::before{ background: var(--maximin); }
  .card.featured{ border-color: rgba(70,224,176,0.4); }

  .card-top{
    display:flex;
    justify-content: space-between;
    align-items:flex-start;
    margin-bottom: 14px;
  }
  .card h3{
    font-family: var(--font-display);
    font-size: 21px;
    margin: 0;
    color: var(--text);
  }
  .card .idx{
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-faint);
  }
  .card p{
    color: var(--text-dim);
    font-size: 14.5px;
    margin: 0 0 18px;
  }
  .card .metric{
    font-family: var(--font-mono);
    font-size: 12.5px;
    color: var(--maximin);
    margin: 0 0 14px;
  }
  .tags{
    display:flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .tag{
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--text-dim);
    border: 1px solid var(--line);
    padding: 4px 9px;
    border-radius: 5px;
  }

  .stack-table{
    width:100%;
    border-collapse: collapse;
    font-size: 14.5px;
  }
  .stack-table tr{ border-top: 1px solid var(--line); }
  .stack-table tr:first-child{ border-top:none; }
  .stack-table td{ padding: 16px 8px; vertical-align: top; }
  .stack-table td.cat{
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: .08em;
    width: 160px;
    white-space: nowrap;
    padding-top: 19px;
  }
  .stack-table .chips{ display:flex; flex-wrap:wrap; gap:8px; }
  .chip{
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text);
    background: var(--bg-elev);
    border: 1px solid var(--line);
    padding: 6px 12px;
    border-radius: 6px;
  }

  .contact-box{
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 44px;
    display:grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items:center;
  }
  .contact-box h2{
    font-family: var(--font-display);
    font-size: clamp(26px, 4vw, 36px);
    margin: 0 0 12px;
  }
  .contact-box p{ color: var(--text-dim); margin:0; font-size: 15px; }
  .contact-links{ display:grid; gap: 10px; }
  .clink{
    display:flex;
    justify-content: space-between;
    align-items:center;
    text-decoration:none;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 7px;
    font-family: var(--font-mono);
    font-size: 13.5px;
    color: var(--text);
    transition: border-color .2s ease, background .2s ease;
  }
  .clink:hover{ border-color: var(--maximin); background: rgba(70,224,176,0.06); }
  .clink .arrow{ color: var(--text-faint); }

  footer{
    padding: 32px 0 48px;
    text-align:center;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-faint);
  }
  footer .sig{ color: var(--maximin); }

  @media (max-width: 860px){
    .hero{ grid-template-columns: 1fr; padding-top: 48px; }
    .about-grid{ grid-template-columns: 1fr; }
    .work-grid{ grid-template-columns: 1fr; }
    .contact-box{ grid-template-columns: 1fr; padding: 28px; }
    .navlinks{ display:none; }
    .stack-table td.cat{ width: auto; padding-bottom: 4px; }
    .stack-table tr{ display:block; padding: 12px 0; }
    .stack-table td{ display:block; padding: 4px 0; }
  }