:root {
    --bg: #0b0e14;
    --bg-soft: #0f1320;
    --text: #e6e9ef;
    --muted: #9aa4b2;
    --primary: #6ee7ff;
    --accent: #b388ff;
    --card: #111628;
    --border: #1d2338;
    --shadow: 0 10px 25px rgba(0,0,0,.35);
  }
  
  * { box-sizing: border-box; }
  html, body { height: 100%; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0; font-family: ui-sans-serif, system-ui, Segoe UI, Roboto, Inter, Arial;
    color: var(--text); background: radial-gradient(1200px 800px at 20% -10%, #121727 0, #0b0e14 40%, #0b0e14 100%);
    overflow-x: hidden;
  }
  
  #bg-canvas {
    position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1;
  }
  
  a { color: var(--primary); text-decoration: none; }
  a:hover { text-decoration: underline; }
  
  .site-header, .site-footer { backdrop-filter: blur(6px); background: color-mix(in oklab, var(--bg) 70%, black 0% / 30%); }
  .site-header {
    position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 1rem;
    padding: .8rem 1rem; border-bottom: 1px solid var(--border);
  }
  .logo { font-weight: 700; display: flex; gap: .5rem; align-items: center; color: var(--text); }
  .nav { display: flex; gap: 1rem; list-style: none; margin: 0; padding: 0; }
  .nav a[data-active] { color: var(--accent); font-weight: 600; }
  .menu-toggle { display: none; }
  
  .toggles { margin-left: auto; display: flex; gap: .5rem; }
  .icon-btn, .chip, .btn {
    border: 1px solid var(--border); background: var(--bg-soft); color: var(--text);
    border-radius: 8px; padding: .5rem .75rem; cursor: pointer; box-shadow: var(--shadow);
  }
  .btn.primary { background: linear-gradient(135deg, var(--accent), var(--primary)); color: #05070d; border: none; }
  .btn.ghost { background: transparent; }
  .btn.link { background: transparent; border: none; padding: 0; }
  
  main { max-width: 1100px; margin: 0 auto; padding: 2rem 1rem 4rem; }
  .hero { padding: 3rem 0 2rem; text-align: center; }
  .subtitle { color: var(--muted); }
  .cta-row { display: flex; gap: 1rem; justify-content: center; margin-top: 1rem; }
  
  .grid { display: grid; gap: 1rem; }
  .grid.cards { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
  .card {
    background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; box-shadow: var(--shadow);
  }
  .link-card { display: block; }
  .tags { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: .5rem 0 0; }
  .tags li { border: 1px solid var(--border); background: var(--bg-soft); border-radius: 999px; padding: .25rem .6rem; font-size: .85rem; color: var(--muted); }
  
  .page-header { margin: 2rem 0 1rem; }
  .portfolio { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
  .project { display: grid; grid-template-columns: 96px 1fr; gap: 1rem; align-items: start; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; }
  .project img { width: 96px; height: 96px; object-fit: cover; border-radius: 10px; border: 1px solid var(--border); }
  .links a { color: var(--primary); }
  
  .form-wrap form { display: grid; gap: 1rem; max-width: 640px; }
  label { display: grid; gap: .4rem; }
  input, textarea {
    width: 100%; padding: .7rem .8rem; border-radius: 10px;
    background: var(--bg-soft); border: 1px solid var(--border); color: var(--text);
  }
  input:focus, textarea:focus { outline: 2px solid color-mix(in oklab, var(--primary) 60%, white 0%); border-color: transparent; }
  #form-status { color: var(--muted); margin-top: .5rem; }
  
  .site-footer { padding: 1rem; border-top: 1px solid var(--border); text-align: center; color: var(--muted); }
  
  .reveal { opacity: 1; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.is-visible { opacity: 1; transform: none; }
  
  /* Responsive nav */
  @media (max-width: 860px) {
    .menu-toggle { display: inline-flex; }
    .nav { display: none; flex-direction: column; position: absolute; right: 1rem; top: 60px; background: var(--card); padding: .75rem; border: 1px solid var(--border); border-radius: 10px; }
    .nav.open { display: flex; }
  }