/* ==========================================================================
   AlphaZulu — group site
   --------------------------------------------------------------------------
   Palette is an EFIS one, not a generic dark theme. The ground is the sky at
   altitude after sunset; magenta is the colour a navigation display draws the
   active flight-plan track in, which is also already the AlphaZulu accent;
   amber is the caution tier on an engine display. Green is reserved — it only
   ever marks something that is actually live.
   ========================================================================== */

:root{
  --void:#06090E;
  --panel:#0C1119;
  --panel-2:#111823;
  --panel-3:#161F2C;

  --hair:rgba(140,172,214,.13);
  --hair-2:rgba(140,172,214,.065);

  --text:#DFE6F0;
  --dim:#9DAFC6;
  --faint:#7A8CA6;

  --track:#F0489F;          /* ND active track — primary signal */
  --track-soft:rgba(240,72,159,.13);
  --caution:#F0A93C;        /* EICAS caution amber */
  --test:#5FB8E8;           /* in testing */
  --live:#3FD9A4;           /* reserved: live only */

  --gutter:24px;
  --max:1180px;

  --disp:"Saira Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
  --data:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:70px;
}

body{
  margin:0;
  background:var(--void);
  color:var(--text);
  font-family:var(--body);
  font-size:16.5px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* A very faint cool wash at the top, like instrument glow. Not a gradient
   banner — it should never be identifiable as one. */
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto 0;
  height:60vh;
  background:radial-gradient(120% 100% at 50% 0%,rgba(72,112,168,.10),transparent 68%);
  pointer-events:none;
  z-index:0;
}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter);position:relative;z-index:1}

a{color:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--track);
  outline-offset:3px;
  border-radius:2px;
}

.data{font-family:var(--data);font-variant-numeric:tabular-nums}
.disp{font-family:var(--disp);text-transform:uppercase;letter-spacing:.005em}

/* ---------- masthead ------------------------------------------------ */

.masthead{
  position:sticky;top:0;z-index:50;
  background:rgba(6,9,14,.82);
  backdrop-filter:saturate(140%) blur(14px);
  -webkit-backdrop-filter:saturate(140%) blur(14px);
  border-bottom:1px solid var(--hair-2);
}
.masthead .wrap{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:60px;
}

.brand{
  display:flex;align-items:center;gap:11px;
  text-decoration:none;flex:0 0 auto;
}
.brand .tag{
  font-family:var(--data);font-size:11px;font-weight:500;letter-spacing:.1em;
  color:var(--void);background:var(--track);
  padding:3px 6px 2px;border-radius:2px;line-height:1;
}
.brand .name{
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:19px;letter-spacing:.03em;line-height:1;
}

.nav{display:flex;align-items:center;gap:26px}
.nav a{
  font-family:var(--data);font-size:11.5px;letter-spacing:.11em;
  text-transform:uppercase;color:var(--dim);text-decoration:none;
  transition:color .18s ease;
}
.nav a:hover,.nav a[aria-current="page"]{color:var(--text)}
.nav a[aria-current="page"]{color:var(--track)}

.nav-toggle{
  display:none;background:none;border:1px solid var(--hair);
  color:var(--dim);font-family:var(--data);font-size:11px;
  letter-spacing:.1em;text-transform:uppercase;
  padding:7px 11px;border-radius:3px;cursor:pointer;
}

/* ---------- hero ---------------------------------------------------- */

.hero{padding:96px 0 68px}

.strip{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  font-family:var(--data);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--faint);
  margin:0 0 34px;
}
.strip span{padding-right:16px;margin-right:16px;border-right:1px solid var(--hair)}
.strip span:last-child{border-right:0;margin-right:0;padding-right:0}
.strip .utc{color:var(--caution)}

.hero h1{
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:clamp(50px,9.2vw,124px);
  line-height:.86;letter-spacing:-.012em;
  margin:0;
  text-wrap:balance;
}
.hero h1 em{font-style:normal;color:var(--track)}

.hero .lede{
  margin:34px 0 0;max-width:46ch;
  font-size:clamp(17px,1.85vw,20.5px);line-height:1.52;color:var(--dim);
}
.hero .lede b{color:var(--text);font-weight:500}

/* ---------- the board (signature) ----------------------------------- */

.board-head{
  display:flex;align-items:baseline;justify-content:space-between;
  gap:20px;flex-wrap:wrap;
  padding-bottom:13px;border-bottom:1px solid var(--hair);
  margin-bottom:0;
}
.board-head h2{
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:clamp(22px,3vw,30px);letter-spacing:.02em;line-height:1;margin:0;
}
.board-head p{
  margin:0;font-family:var(--data);font-size:11px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--faint);
}

.board-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 252px;
  gap:54px;align-items:start;
}
.board{border-bottom:1px solid var(--hair);min-width:0}

.row{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) 148px 118px 16px;
  align-items:center;gap:18px;
  padding:17px 8px 17px 0;
  border-bottom:1px solid var(--hair-2);
  text-decoration:none;color:inherit;
  position:relative;
  transition:background .2s ease;
}
.row:last-child{border-bottom:0}
.row::before{
  content:"";position:absolute;left:-8px;top:0;bottom:0;width:2px;
  background:var(--rowaccent,var(--track));
  transform:scaleY(0);transform-origin:50% 50%;
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
}
.row:hover,.row:focus-visible{background:var(--panel)}
.row:hover::before,.row:focus-visible::before{transform:scaleY(1)}

.row .desig{
  font-family:var(--data);font-size:12px;letter-spacing:.06em;
  color:var(--faint);
}
.row:hover .desig{color:var(--rowaccent,var(--track))}

.row .who{min-width:0}
.row .who strong{
  display:block;
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:22px;letter-spacing:.015em;line-height:1.05;
}
.row .who span{
  display:block;margin-top:3px;
  font-size:13.5px;color:var(--faint);line-height:1.35;
}

.row .meta{font-family:var(--data);font-size:10.5px;letter-spacing:.11em;text-transform:uppercase}
.row .meta b{display:block;font-weight:400;color:var(--dim)}
.row .meta i{display:block;font-style:normal;color:var(--faint);margin-top:4px}

.status{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--data);font-size:10.5px;letter-spacing:.11em;
  text-transform:uppercase;white-space:nowrap;
}
.status::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:currentColor;flex:0 0 auto;
}
/* A ladder, not a set of labels: grey is still being built, blue is in
   testing, amber is open to people outside, green is running. Reading down
   the board tells you how far along the portfolio is. */
.status.is-build{color:var(--faint)}
.status.is-test{color:var(--test)}
.status.is-open{color:var(--caution)}
.status.is-live{color:var(--live)}

.row .go{
  font-family:var(--data);font-size:14px;color:var(--faint);
  text-align:right;
  transition:transform .22s ease,color .22s ease;
}
.row:hover .go{color:var(--rowaccent,var(--track));transform:translateX(3px)}

/* ---------- the screens the board drives ----------------------------- */

.pane{position:sticky;top:92px}

.screenbox{
  position:relative;
  aspect-ratio:460/1000;
  padding-bottom:78px;          /* the strip holding the dots and the caption */
}

.deck{
  position:absolute;inset:0;margin:0;
  opacity:0;transform:scale(.986);
  transition:opacity .3s ease,transform .3s cubic-bezier(.22,.61,.36,1);
  pointer-events:none;
}
.deck.on{opacity:1;transform:none;pointer-events:auto}

.frames{
  position:absolute;inset:0 0 78px 0;
  border-radius:19px;background:var(--panel-2);
  /* A screen is a lit surface, so it throws its product's colour onto the
     page rather than sitting in a frame. The hairline keeps its edge legible
     against a dark ground. */
  box-shadow:0 0 0 1px rgba(190,215,245,.13),
             0 26px 64px -26px var(--a),
             0 10px 30px -18px rgba(0,0,0,.8);
}
.frames img{
  position:absolute;inset:0;display:block;width:100%;height:100%;
  object-fit:cover;object-position:top center;border-radius:19px;
  opacity:0;transition:opacity .45s ease;
}
.frames img.on{opacity:1}

.dots{
  position:absolute;left:0;right:0;bottom:44px;
  display:flex;justify-content:center;gap:6px;
  list-style:none;margin:0;padding:0;
}
.dots button{
  display:block;width:21px;height:3px;padding:0;border:0;border-radius:2px;
  background:rgba(190,215,245,.24);cursor:pointer;
  transition:background .25s ease;
}
.dots button:hover{background:rgba(190,215,245,.5)}
.dots button.on,.dots button.on:hover{background:var(--a)}

.deck figcaption{
  position:absolute;left:0;right:0;bottom:2px;
  font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--faint);text-align:center;
}
.deck figcaption .lbl{color:var(--a);margin-left:7px}

/* A loop nobody can stop is the web equivalent of the advert every five
   swipes, so it can always be stopped. */
.pp{
  position:absolute;right:9px;bottom:86px;z-index:3;
  padding:5px 10px;cursor:pointer;
  background:rgba(6,9,14,.66);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(190,215,245,.18);border-radius:999px;
  font-family:var(--data);font-size:9.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--text);
}
.pp:hover{border-color:rgba(190,215,245,.4)}

/* split-flap settle: the board drops into place once, on load */
.js .board .row{
  opacity:0;
  transform:perspective(600px) rotateX(-38deg);
  transform-origin:50% 0%;
}
.js .board.settled .row{
  opacity:1;
  transform:none;
  transition:opacity .34s ease,transform .42s cubic-bezier(.2,.75,.3,1);
  transition-delay:calc(var(--i) * 58ms);
}

/* ---------- generic sections ---------------------------------------- */

section{padding:76px 0;position:relative;z-index:1}
section.tight{padding:56px 0}

.eyebrow{
  font-family:var(--data);font-size:11px;letter-spacing:.17em;
  text-transform:uppercase;color:var(--track);margin:0 0 18px;
}

h2.sect{
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:clamp(28px,4.4vw,46px);line-height:.98;letter-spacing:.008em;
  margin:0 0 22px;max-width:18ch;text-wrap:balance;
}

.prose{max-width:58ch;color:var(--dim);font-size:17px;line-height:1.66;margin:0}
.prose + .prose{margin-top:15px}
.prose b{color:var(--text);font-weight:500}
.prose a{color:var(--track);text-decoration:none;border-bottom:1px solid var(--track-soft)}
.prose a:hover{border-bottom-color:var(--track)}

.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}

/* ---------- stance list --------------------------------------------- */

.stance{list-style:none;margin:0;padding:0;border-top:1px solid var(--hair)}
.stance li{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px;
  padding:20px 0;border-bottom:1px solid var(--hair-2);
}
.stance h3{
  margin:0;
  font-family:var(--data);font-size:11px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--caution);font-weight:500;line-height:1.7;
}
.stance p{margin:0;color:var(--dim);font-size:15.5px;line-height:1.62}
.stance p b{color:var(--text);font-weight:500}

/* ---------- footer --------------------------------------------------- */

.foot{border-top:1px solid var(--hair);padding:52px 0 60px;position:relative;z-index:1}
.foot-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:44px;align-items:start;
}
.foot h4{
  margin:0 0 14px;
  font-family:var(--data);font-size:10.5px;letter-spacing:.15em;
  text-transform:uppercase;color:var(--faint);font-weight:400;
}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:0 0 9px}
.foot a{
  color:var(--dim);text-decoration:none;font-size:14.5px;
  transition:color .18s ease;
}
.foot a:hover{color:var(--track)}

.reg{
  margin:0;font-family:var(--data);font-size:11.5px;line-height:1.85;
  color:var(--faint);letter-spacing:.02em;
}
.reg b{color:var(--dim);font-weight:400}

.colophon{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--hair-2);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-family:var(--data);font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--faint);
}

/* ---------- entry reveal -------------------------------------------- */

.js .rv{opacity:0;transform:translateY(14px)}
.js .rv.in{
  opacity:1;transform:none;
  transition:opacity .5s ease,transform .5s cubic-bezier(.22,.61,.36,1);
}

/* ---------- responsive ----------------------------------------------- */

@media (max-width:1000px){
  .split{grid-template-columns:1fr;gap:38px}
  .row{grid-template-columns:52px minmax(0,1fr) 128px 116px;row-gap:10px}
  .row .go{display:none}

  /* No hover to drive anything, so the same markup becomes a strip you
     scroll, and a card plays when it is tapped rather than on its own. */
  .board-wrap{grid-template-columns:minmax(0,1fr);gap:0}
  .pane{position:static;margin-top:36px}
  .screenbox{
    display:flex;gap:16px;aspect-ratio:auto;padding:2px 2px 10px;
    overflow-x:auto;scroll-snap-type:x mandatory;
    -webkit-overflow-scrolling:touch;
  }
  .deck{
    position:static;inset:auto;flex:0 0 190px;
    opacity:1;transform:none;pointer-events:auto;scroll-snap-align:start;
  }
  .frames{position:relative;inset:auto;height:404px;border-radius:15px}
  .frames img{border-radius:15px}
  .dots{position:static;margin-top:12px;justify-content:flex-start}
  .deck figcaption{position:static;margin-top:9px;text-align:left}
  .pp{display:none}             /* tapping the running card stops it instead */
}

@media (max-width:760px){
  .nav{
    display:none;
    position:absolute;top:60px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:var(--panel);border-bottom:1px solid var(--hair);
    padding:8px var(--gutter) 18px;
  }
  .nav.open{display:flex}
  .nav a{padding:11px 0;font-size:12.5px;width:100%;border-bottom:1px solid var(--hair-2)}
  .nav-toggle{display:block}
  .masthead .wrap{position:relative}

  .hero{padding:62px 0 48px}
  section{padding:56px 0}

  .row{grid-template-columns:44px minmax(0,1fr);row-gap:8px;padding:16px 8px 16px 0}
  .row .meta{display:none}
  .row .who strong{font-size:19px}
  .row .status{grid-column:2}

  .foot-grid{grid-template-columns:1fr;gap:34px}
  .stance li{grid-template-columns:1fr;gap:7px}
}


/* ---------- reduced motion ------------------------------------------- */

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .board .row,.js .board.settled .row{opacity:1;transform:none;transition:none}
  .js .rv,.js .rv.in{opacity:1;transform:none;transition:none}
  .frames img{transition:none}
  .deck{transition:none}
  .row::before{transition:none}
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important}
}

/* ==========================================================================
   Inner pages — set by tools/pages.py
   ========================================================================== */

.pagehead{padding:84px 0 46px;border-bottom:1px solid var(--hair)}
.pagetitle{
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:clamp(40px,7.4vw,86px);line-height:.88;letter-spacing:-.008em;
  margin:0;text-wrap:balance;
}
.pagelede{
  margin:28px 0 0;max-width:52ch;
  font-size:clamp(16.5px,1.7vw,19px);line-height:1.55;color:var(--dim);
}

/* ---------- portfolio entries ---------------------------------------- */

.entry{
  display:grid;grid-template-columns:minmax(0,260px) minmax(0,1fr);
  gap:48px;align-items:start;
  padding:44px 0;border-bottom:1px solid var(--hair-2);
}
.entry:last-child{border-bottom:0}

/* the name stays put while its paragraphs scroll past */
.entry-head{position:sticky;top:92px}
.entry-head .desig{margin:0 0 10px;font-size:12px;letter-spacing:.06em;color:var(--a)}
.entry-head h2{
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:clamp(26px,3vw,34px);line-height:1;letter-spacing:.012em;margin:0 0 12px;
}
.entry-meta{
  margin:0 0 14px;font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--faint);
}
.entry-head p:last-child{margin:0}

.entry-body p{margin:0 0 15px;color:var(--dim);font-size:16.5px;line-height:1.66;max-width:60ch}
.entry-note{
  margin:18px 0 0 !important;padding-left:15px;border-left:2px solid var(--a);
  font-size:15px;color:var(--text) !important;
}
.out{
  display:inline-block;margin-top:20px;
  font-family:var(--data);font-size:12px;letter-spacing:.05em;
  color:var(--a);text-decoration:none;
  border-bottom:1px solid transparent;
}
.out::after{content:" \2197"}
.out:hover{border-bottom-color:var(--a)}

/* ---------- lists, pairs, panels -------------------------------------- */

.ticks{list-style:none;margin:18px 0 0;padding:0;max-width:60ch}
.ticks li{
  position:relative;padding-left:20px;margin-bottom:9px;
  color:var(--dim);font-size:15.5px;line-height:1.6;
}
.ticks li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:9px;height:1px;background:var(--a,var(--track));
}

.kv{margin:0;border-top:1px solid var(--hair)}
.kv div{
  display:grid;grid-template-columns:minmax(0,210px) minmax(0,1fr);gap:24px;
  padding:15px 0;border-bottom:1px solid var(--hair-2);
}
.kv dt{
  font-family:var(--data);font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--faint);line-height:1.75;
}
.kv dd{margin:0;color:var(--dim);font-size:15.5px;line-height:1.62}
.kv dd.data{font-size:13.5px;color:var(--text)}
.kv dd a{color:var(--track);text-decoration:none;border-bottom:1px solid var(--track-soft)}
.kv dd a:hover{border-bottom-color:var(--track)}

.callout{
  border:1px solid var(--hair);border-left:2px solid var(--track);
  background:var(--panel);
  padding:28px 30px;margin:0 0 20px;
}
.callout h2{
  font-family:var(--disp);font-weight:700;text-transform:uppercase;
  font-size:21px;letter-spacing:.02em;margin:0 0 15px;
}
.callout .eyebrow{margin-bottom:12px}
.callout .prose + .prose{margin-top:13px}
.callout .ticks{margin-top:0}

.quote{
  font-size:17.5px !important;line-height:1.62;color:var(--text) !important;
  max-width:64ch;
}

/* ---------- press marks ------------------------------------------------ */

.marks{
  list-style:none;margin:22px 0 0;padding:0;
  display:grid;grid-template-columns:repeat(auto-fill,minmax(122px,1fr));gap:22px;
}
.marks li{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.marks img{display:block;border-radius:11px;background:var(--panel-2)}
.marks a{
  font-family:var(--data);font-size:10.5px;letter-spacing:.06em;
  color:var(--faint);text-decoration:none;border-bottom:1px solid var(--hair);
}
.marks a:hover{color:var(--track);border-bottom-color:var(--track)}

@media (max-width:1000px){
  .entry{grid-template-columns:minmax(0,1fr);gap:22px}
  .entry-head{position:static}
}
@media (max-width:760px){
  .pagehead{padding:56px 0 36px}
  .kv div{grid-template-columns:minmax(0,1fr);gap:6px}
  .callout{padding:22px 20px}
}

/* section headings inside a job posting */
.subhead{
  font-family:var(--data);font-size:10.5px;font-weight:500;letter-spacing:.13em;
  text-transform:uppercase;color:var(--a,var(--track));
  margin:26px 0 0;
}
.subhead + .ticks{margin-top:10px}