:root {
    --bg: #10151c;
    --bg-raise: #161d26;
    --surface: #1a222d;
    --surface-2: #212b38;
    --hair: #2c3746;
    --ink: #f1ece1;
    --ink-dim: #9aa7b6;
    --ink-faint: #64707f;
    --accent: #e2883a;
    --accent-ink: #1a120a;
    --accent-dim: #8a5a2c;
    --shadow: 0 20px 50px -25px rgba(0,0,0,0.6);
  }
  :root[data-theme="light"] {
    --bg: #eceae4;
    --bg-raise: #f3f1ec;
    --surface: #ffffff;
    --surface-2: #f4f2ec;
    --hair: #d8d4c8;
    --ink: #1a1f26;
    --ink-dim: #56606c;
    --ink-faint: #88919a;
    --accent: #c1651f;
    --accent-ink: #fff8f0;
    --accent-dim: #e7c19c;
    --shadow: 0 20px 50px -30px rgba(20,20,10,0.25);
  }
  @media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
      --bg: #eceae4;
      --bg-raise: #f3f1ec;
      --surface: #ffffff;
      --surface-2: #f4f2ec;
      --hair: #d8d4c8;
      --ink: #1a1f26;
      --ink-dim: #56606c;
      --ink-faint: #88919a;
      --accent: #c1651f;
      --accent-ink: #fff8f0;
      --accent-dim: #e7c19c;
      --shadow: 0 20px 50px -30px rgba(20,20,10,0.25);
    }
  }

  * { box-sizing: border-box; }
  html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
  body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: 'IBM Plex Sans', ui-sans-serif, system-ui, -apple-system, sans-serif;
    font-weight: 400;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  }

  a { color: inherit; }
  h1, h2, h3 { margin: 0; font-family: 'Barlow Condensed', ui-sans-serif, system-ui, sans-serif; font-weight: 700; text-transform: uppercase; letter-spacing: 0.01em; text-wrap: balance; }

  .wrap { max-width: 1180px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 56px); }

  .eyebrow {
    font-family: 'IBM Plex Mono', ui-monospace, monospace;
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
  }

  /* ---------- NAV ---------- */
  .nav {
    position: sticky; top: 0; z-index: 40;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--hair);
  }
  .nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
  .nav-mark { display: flex; align-items: center; gap: 10px; font-family: 'Barlow Condensed'; font-weight: 700; letter-spacing: 0.04em; font-size: 1.05rem; text-transform: uppercase; }
  .nav-mark .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); flex: none; }
  .nav-links { display: flex; gap: clamp(14px, 3vw, 30px); font-family: 'IBM Plex Mono', monospace; font-size: 0.74rem; letter-spacing: 0.06em; text-transform: uppercase; }
  .nav-links a { text-decoration: none; color: var(--ink-dim); padding: 4px 0; border-bottom: 1px solid transparent; transition: color .2s, border-color .2s; }
  .nav-links a:hover, .nav-links a:focus-visible { color: var(--ink); border-color: var(--accent); }
  .nav-links a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
  .nav-cta { display: none; }
  @media (min-width: 640px) {
    .nav-cta { display: inline-flex; }
  }

  /* ---------- HERO ---------- */
  .hero { position: relative; padding: clamp(56px, 11vw, 128px) 0 clamp(48px, 8vw, 88px); overflow: hidden; border-bottom: 1px solid var(--hair); }
  .hero-rig {
    position: absolute; right: clamp(-140px, -6vw, -40px); top: 50%; transform: translateY(-50%);
    width: min(560px, 60vw); height: min(560px, 60vw);
    opacity: 0.5; pointer-events: none;
  }
  :root[data-theme="light"] .hero-rig { opacity: 0.35; }
  @media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .hero-rig { opacity: 0.35; } }
  .hero-rig svg { width: 100%; height: 100%; display: block; }
  .rig-spin { transform-origin: 250px 250px; animation: spin 48s linear infinite; }
  .rig-spin-rev { transform-origin: 250px 250px; animation: spin-rev 70s linear infinite; }
  @keyframes spin { to { transform: rotate(360deg); } }
  @keyframes spin-rev { to { transform: rotate(-360deg); } }

  .hero-grid { position: relative; display: grid; gap: 28px; max-width: 760px; }
  .hero-eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
  .hero-eyebrow .rule { width: 34px; height: 1px; background: var(--accent); }
  .hero h1 { font-size: clamp(2.8rem, 8vw, 5.4rem); line-height: 0.94; letter-spacing: 0.005em; }
  .hero h1 span { color: var(--accent); }
  .hero-role { font-family: 'IBM Plex Mono', monospace; font-size: clamp(0.95rem, 2vw, 1.05rem); color: var(--ink-dim); letter-spacing: 0.01em; margin-top: 2px; }
  .hero-role strong { color: var(--ink); font-weight: 500; }
  .hero-lede { font-size: clamp(1.05rem, 2.2vw, 1.22rem); color: var(--ink-dim); max-width: 54ch; }

  .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
  .btn {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase;
    padding: 13px 20px; border-radius: 3px; text-decoration: none; border: 1px solid transparent;
    transition: transform .15s ease, background .2s, border-color .2s, color .2s;
  }
  .btn:hover { transform: translateY(-1px); }
  .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
  .btn-primary { background: var(--accent); color: var(--accent-ink); font-weight: 500; }
  .btn-primary:hover { background: color-mix(in srgb, var(--accent) 88%, white 12%); }
  .btn-ghost { border-color: var(--hair); color: var(--ink); }
  .btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

  .stat-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--hair); border: 1px solid var(--hair); margin-top: clamp(28px, 5vw, 44px); max-width: 720px; }
  .stat { background: var(--bg); padding: 18px 20px; }
  .stat .num { font-family: 'Barlow Condensed'; font-weight: 700; font-size: clamp(1.9rem, 4vw, 2.5rem); color: var(--ink); line-height: 1; }
  .stat .num em { color: var(--accent); font-style: normal; }
  .stat .label { font-family: 'IBM Plex Mono', monospace; font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); margin-top: 6px; }

  /* ---------- SECTION SCAFFOLD ---------- */
  section.block { padding: clamp(56px, 9vw, 104px) 0; border-bottom: 1px solid var(--hair); }
  .section-head { display: grid; grid-template-columns: 1fr; gap: 14px; margin-bottom: clamp(36px, 6vw, 56px); max-width: 700px; }
  .section-head h2 { font-size: clamp(2rem, 5vw, 2.9rem); line-height: 1; }
  .section-head .dek { color: var(--ink-dim); font-size: 1.02rem; max-width: 56ch; }

  /* ---------- VISION ---------- */
  .vision-quote {
    font-family: 'Barlow Condensed'; font-weight: 600; text-transform: none; letter-spacing: 0;
    font-size: clamp(1.5rem, 3.4vw, 2.15rem); line-height: 1.28; color: var(--ink);
    max-width: 46ch; text-wrap: balance;
    border-left: 2px solid var(--accent); padding-left: clamp(18px, 3vw, 28px);
    margin-bottom: clamp(40px, 6vw, 60px);
  }
  .pillars { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1px; background: var(--hair); border: 1px solid var(--hair); }
  .pillar { background: var(--surface); padding: 26px 24px; display: flex; flex-direction: column; gap: 10px; }
  .pillar .idx { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; color: var(--accent); letter-spacing: 0.06em; }
  .pillar h3 { font-size: 1.18rem; letter-spacing: 0.01em; }
  .pillar p { margin: 0; color: var(--ink-dim); font-size: 0.94rem; }

  /* ---------- TIMELINE ---------- */
  .timeline { position: relative; }
  .tl-item { position: relative; display: grid; grid-template-columns: 108px 1fr; gap: clamp(16px, 3vw, 32px); padding: 26px 0; border-top: 1px solid var(--hair); }
  .tl-item:first-child { border-top: 1px solid var(--hair); }
  .tl-date { font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; color: var(--ink-faint); padding-top: 3px; line-height: 1.5; }
  .tl-date .current { color: var(--accent); }
  .tl-body h3 { text-transform: none; font-family: 'IBM Plex Sans'; font-weight: 600; font-size: 1.14rem; letter-spacing: 0; color: var(--ink); }
  .tl-body .co { font-family: 'Barlow Condensed'; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; font-size: 1.4rem; color: var(--ink); display: block; margin-top: 2px;}
  .tl-loc { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; color: var(--ink-faint); letter-spacing: 0.04em; text-transform: uppercase; margin-top: 6px; }
  .tl-desc { color: var(--ink-dim); margin-top: 12px; max-width: 62ch; font-size: 0.97rem; }
  .tl-metric { display: inline-flex; align-items: baseline; gap: 6px; margin-top: 14px; font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; color: var(--accent); border: 1px solid var(--accent-dim); padding: 5px 10px; border-radius: 3px; }
  .tl-metric b { font-family: 'Barlow Condensed'; font-size: 1rem; font-weight: 700; }

  @media (max-width: 620px) {
    .tl-item { grid-template-columns: 1fr; gap: 6px; }
    .tl-date { padding-top: 0; }
  }

  /* ---------- ACADEMIC ---------- */
  .degree-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1px; background: var(--hair); border: 1px solid var(--hair); margin-bottom: 40px; }
  .degree { background: var(--surface); padding: 24px; display: flex; flex-direction: column; gap: 8px; }
  .degree .yr { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; color: var(--accent); letter-spacing: 0.05em; }
  .degree h3 { text-transform: none; font-family: 'IBM Plex Sans'; font-weight: 600; font-size: 1.03rem; letter-spacing: 0; color: var(--ink); line-height: 1.35; }
  .degree p { margin: 0; color: var(--ink-dim); font-size: 0.88rem; }

  .strip-title { font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 14px; }
  .chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
  .chip { border: 1px solid var(--hair); border-radius: 3px; padding: 9px 14px; font-size: 0.85rem; color: var(--ink-dim); background: var(--surface); }
  .chip strong { color: var(--ink); font-weight: 600; }

  /* ---------- FOOTER ---------- */
  footer { padding: clamp(52px, 8vw, 84px) 0 40px; }
  .collab-panel {
    border: 1px solid var(--accent-dim); border-radius: 4px; padding: clamp(28px, 5vw, 44px);
    background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 60%);
    margin-bottom: 48px;
  }
  .collab-panel .eyebrow { margin-bottom: 12px; display: block; }
  .collab-panel h2 { font-size: clamp(1.6rem, 3.6vw, 2.3rem); margin-bottom: 16px; text-wrap: balance; }
  .collab-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 22px; }
  .tag { font-family: 'IBM Plex Mono', monospace; font-size: 0.78rem; letter-spacing: 0.03em; padding: 8px 14px; border: 1px solid var(--accent-dim); border-radius: 999px; color: var(--ink); }
  .collab-base { color: var(--ink-dim); font-size: 0.95rem; margin-top: 4px; }
  .collab-base strong { color: var(--ink); }

  .foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: flex-end; }
  .foot-contact { display: flex; flex-direction: column; gap: 6px; font-family: 'IBM Plex Mono', monospace; font-size: 0.85rem; color: var(--ink-dim); }
  .foot-contact a { text-decoration: none; }
  .foot-contact a:hover { color: var(--accent); }
  .foot-copy { font-size: 0.78rem; color: var(--ink-faint); font-family: 'IBM Plex Mono', monospace; }

  /* ---------- SCROLL REVEAL ---------- */
  .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
  .reveal-in { opacity: 1; transform: translateY(0); }