:root{
  color-scheme: light;
  --ground:#E9EDF1;
  --surface:#FFFFFF;
  --surface-2:#F2F5F8;
  --ink:#101519;
  --muted:#59656F;
  --line:#C7D1D9;
  --line-soft:#DCE3E9;
  --accent:#B0541B;
  --accent-soft:#F0DCCB;
  --btn-fg:#FFFFFF;
  --signal:#1C7355;
  --grid:rgba(16,21,25,.045);

  --display:"Archivo","Helvetica Neue",Arial,sans-serif;
  --body:"Source Serif 4",Georgia,"Times New Roman",serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --measure:64ch;
  --gutter:clamp(20px,5vw,64px);
  --rail:28px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --ground:#0D1317;
    --surface:#141C22;
    --surface-2:#18222A;
    --ink:#E7EEF3;
    --muted:#93A2AE;
    --line:#26333C;
    --line-soft:#1D2830;
    --accent:#DE8A46;
    --accent-soft:#33221476;
    --btn-fg:#0D1317;
    --signal:#43BE93;
    --grid:rgba(231,238,243,.05);
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --ground:#0D1317;
  --surface:#141C22;
  --surface-2:#18222A;
  --ink:#E7EEF3;
  --muted:#93A2AE;
  --line:#26333C;
  --line-soft:#1D2830;
  --accent:#DE8A46;
  --accent-soft:#33221476;
  --btn-fg:#0D1317;
  --signal:#43BE93;
  --grid:rgba(231,238,243,.05);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--ground);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:26px 26px;
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;
  line-height:1.62;
  font-synthesis-weight:none;
}
img{max-width:100%}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

/* ---------- shell ---------- */
.wrap{max-width:1140px;margin:0 auto;padding-inline:var(--gutter)}

.topbar{
  position:sticky;top:env(safe-area-inset-top,0px);z-index:20;
  background:color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.topbar .wrap{display:flex;align-items:center;gap:18px;padding-block:11px}
.mark{
  font-family:var(--mono);font-weight:600;font-size:13px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink);text-decoration:none;white-space:nowrap;
}
.mark span{color:var(--accent)}
.topnav{margin-left:auto;display:flex;gap:clamp(10px,2vw,22px);align-items:center;flex-wrap:wrap}
.topnav a{
  font-family:var(--mono);font-size:12px;letter-spacing:.07em;text-transform:uppercase;
  color:var(--muted);text-decoration:none;
}
.topnav a:hover{color:var(--ink)}
.themebtn{
  font-family:var(--mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;
  background:transparent;border:1px solid var(--line);color:var(--muted);
  padding:5px 9px;border-radius:2px;cursor:pointer;
}
.themebtn:hover{color:var(--ink);border-color:var(--ink)}
/* phone: wordmark + theme on one row, the full nav scrolls sideways below */
@media (max-width:620px){
  .topbar .wrap{flex-wrap:wrap;row-gap:6px;padding-block:9px}
  .themebtn{margin-left:auto}
  .topnav{order:3;width:100%;margin-left:0;flex-wrap:nowrap;gap:11px;overflow-x:auto;scrollbar-width:none;padding-block:2px}
  .topnav a{white-space:nowrap;font-size:11.5px;letter-spacing:.03em}
}
/* anchor jumps land below the sticky header */
html{scroll-padding-top:64px}
@media (max-width:620px){ html{scroll-padding-top:96px} }

/* ---------- section scaffolding: the schematic rail ---------- */
section{position:relative;padding-block:clamp(52px,7vw,92px);border-top:1px solid var(--line-soft)}
section:first-of-type{border-top:0}
.eyebrow{
  max-width:none;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin:0 0 14px;display:flex;align-items:center;gap:10px;
}
.eyebrow::before{
  content:"";width:var(--rail);height:1px;background:var(--accent);flex:none;
}
h1,h2,h3{font-family:var(--display);font-weight:600;text-wrap:balance;margin:0}
h2{font-size:clamp(28px,4.2vw,40px);line-height:1.08;letter-spacing:-.02em}
h3{font-size:19px;line-height:1.25;letter-spacing:-.01em}
.lede{max-width:var(--measure);color:var(--muted);margin:14px 0 0;font-size:18px}
p{max-width:var(--measure)}

/* ---------- masthead ---------- */
.masthead{padding-block:clamp(46px,8vw,86px) clamp(40px,6vw,64px)}
.masthead h1{
  font-size:clamp(42px,9.4vw,88px);line-height:.96;letter-spacing:-.035em;font-weight:700;
  margin:0 0 20px;
}
.masthead h1 em{font-style:normal;color:var(--accent)}
.stance{max-width:52ch;font-size:clamp(18px,2.3vw,21px);margin:0 0 26px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:38px}
.btn{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;
  padding:12px 20px;border-radius:2px;text-decoration:none;border:1px solid var(--accent);
  background:var(--accent);color:var(--btn-fg);
}
.btn:hover{filter:brightness(1.07)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--ink)}

/* nameplate: the spec strip */
.plate{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--line);background:var(--surface);
}
.plate div{padding:14px 16px;border-left:1px solid var(--line-soft)}
.plate div:first-child{border-left:0}
.plate dt{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin:0 0 5px;
}
.plate dd{margin:0;font-family:var(--display);font-weight:600;font-size:15px;line-height:1.3}
@media (max-width:700px){
  .plate{grid-template-columns:repeat(2,minmax(0,1fr))}
  .plate div:nth-child(3){border-left:0}
  .plate div:nth-child(n+3){border-top:1px solid var(--line-soft)}
}

/* ---------- practice grid ---------- */
.practice{display:grid;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);margin-top:34px}
@media (min-width:820px){ .practice{grid-template-columns:repeat(3,1fr)} }
.practice article{background:var(--surface);padding:24px 22px 26px}
.practice h3{margin-bottom:10px}
.practice p{font-size:15.5px;color:var(--muted);margin:0}
.practice .tag{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);display:block;margin-bottom:12px;
}

/* ---------- career track ---------- */
.track{margin-top:36px;border-left:1px solid var(--line);padding-left:clamp(18px,3vw,34px)}
.stop{position:relative;padding-block:0 30px}
.stop:last-child{padding-bottom:0}
.stop::before{
  content:"";position:absolute;left:calc(-1 * clamp(18px,3vw,34px) - 4px);top:9px;
  width:7px;height:7px;border-radius:50%;background:var(--accent);
}
.stop .yr{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;color:var(--muted);
  display:block;margin-bottom:3px;
}
.stop h3{margin-bottom:6px}
.stop p{font-size:15.5px;color:var(--muted);margin:0}

/* ---------- work notes ---------- */
.notes{display:grid;gap:18px;margin-top:34px}
@media (min-width:760px){ .notes{grid-template-columns:repeat(2,1fr)} }
.note{
  background:var(--surface);border:1px solid var(--line-soft);
  border-top:3px solid var(--accent);padding:22px 20px 24px;
}
.note h3{margin-bottom:10px;font-size:17.5px}
.note p{font-size:15px;color:var(--muted);margin:0 0 14px}
.note ul{margin:0;padding-left:0;list-style:none;font-family:var(--mono);font-size:12px;color:var(--muted)}
.note li{padding:4px 0;border-top:1px dotted var(--line);letter-spacing:.02em}

/* ---------- lab table ---------- */
.labwrap{overflow-x:auto;margin-top:32px;border:1px solid var(--line);background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:560px}
caption{
  text-align:left;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);padding:14px 18px;border-bottom:1px solid var(--line-soft);
}
th,td{text-align:left;padding:11px 18px;border-top:1px solid var(--line-soft);font-size:15px;vertical-align:top}
th{
  font-family:var(--mono);font-weight:500;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);border-top:0;
}
td:first-child{font-family:var(--display);font-weight:600}
td.spec{font-family:var(--mono);font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.pill{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  border:1px solid currentColor;border-radius:999px;padding:2px 9px;white-space:nowrap;
}
.pill.up{color:var(--signal)}
.pill.wip{color:var(--accent)}
/* phone: each row becomes a block, layer + state on top, detail below */
@media (max-width:640px){
  table,tbody,caption{display:block}
  table{min-width:0}
  thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
  tbody tr{display:grid;grid-template-columns:1fr auto;column-gap:12px;padding:13px 16px;border-top:1px solid var(--line-soft)}
  tbody tr:first-child{border-top:0}
  tbody td{display:block;padding:0;border-top:0}
  tbody td:first-child{grid-column:1;grid-row:1}
  tbody td:last-child{grid-column:2;grid-row:1}
  tbody td:nth-child(2),tbody td.spec{grid-column:1 / -1}
  tbody td:nth-child(2){margin-top:4px}
  tbody td.spec{margin-top:3px}
  caption{padding:13px 16px}
}

/* ---------- off the clock ---------- */
.offclock{display:grid;gap:26px;margin-top:32px}
@media (min-width:760px){ .offclock{grid-template-columns:repeat(2,1fr);gap:26px 44px} }
.oc h3{margin-bottom:8px}
.oc p{font-size:15.5px;color:var(--muted);margin:0}
.oc .kicker{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);display:block;margin-bottom:8px;
}

/* ---------- contact ---------- */
.contact{background:var(--surface);border:1px solid var(--line);padding:clamp(26px,4vw,44px);margin-top:32px}
.contact h2{margin-bottom:12px}
.contact .lede{margin-bottom:24px}
.chan{display:flex;flex-wrap:wrap;gap:12px}

footer{
  border-top:1px solid var(--line-soft);padding-block:26px 40px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted);
}
footer .wrap{display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between}
@media (prefers-reduced-motion:reduce){ *{animation:none!important;transition:none!important} }