/* ===========================================================
   Andrew Kulak, Ph.D. — personal site
   Heritage Urban Scholar + Vintage Hacker
   Brand tokens per the Visual Brand Style Guide (2026-07-11).
   Courier New is kept ONLY for the site's terminal <h1> effect;
   everything else uses the IBM Plex family.
   =========================================================== */

:root{
  /* digital / dark — primary */
  --bg1:#1E1E2E;
  --bg2:#0A192F;
  --text:#E6F1FF;   /* warm off-white */
  --teal:#64FFDA;   /* cyber teal — primary accent */
  --gold:#E3C567;   /* muted gold — occasional highlight only */
  --slate:#8FA1B3;  /* muted secondary text */

  /* surfaces */
  --surface-mid:#1E3350;
  --hair:rgba(230,241,255,0.12);

  /* type */
  --sans:'IBM Plex Sans', Arial, sans-serif;
  --serif:'IBM Plex Serif', Georgia, serif;
  --mono:'IBM Plex Mono', 'Courier New', monospace;   /* brand mono */
  --terminal:'Courier New', monospace;                /* website-only easter egg */
}

*{box-sizing:border-box;}

html,body{margin:0;padding:0;}

body{
  font-family:var(--sans);
  background:linear-gradient(135deg,var(--bg1),var(--bg2));
  color:var(--text);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}

a{
  color:var(--teal);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:border-color .25s ease;
}
a:hover{border-bottom-color:var(--gold);}

/* ---------- top navigation (shared) ---------- */
.topnav{
  width:100%;
  border-bottom:1px solid var(--hair);
}
.topnav .wrap{
  max-width:820px;
  margin:0 auto;
  padding:1.1rem 1.5rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
}
.brandmark{
  font-family:var(--mono);
  font-weight:600;
  font-size:1.15rem;
  color:var(--teal);
  letter-spacing:.02em;
  border-bottom:none;
}
.brandmark:hover{border-bottom:none;color:var(--teal);}
.navlinks{
  display:flex;
  gap:1.4rem;
  flex-wrap:wrap;
  font-family:var(--mono);
  font-size:.92rem;
}
.navlinks a{
  color:var(--slate);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
}
.navlinks a:hover{color:var(--text);border-bottom-color:transparent;}
.navlinks a.active{color:var(--teal);border-bottom-color:var(--gold);}

/* ---------- main ---------- */
main{
  flex:1 0 auto;
  width:100%;
  max-width:720px;
  margin:0 auto;
  padding:2.75rem 1.5rem 1rem;
}

.kicker{
  font-family:var(--mono);
  font-size:.78rem;
  color:var(--gold);
  letter-spacing:.08em;
  margin-bottom:.45rem;
}
h2.page{
  font-family:var(--sans);
  font-weight:600;
  font-size:1.75rem;
  color:var(--text);
  margin:.1rem 0 1.5rem;
}

/* ---------- home ---------- */
.home{
  text-align:center;
  max-width:640px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  min-height:60vh;
  padding-top:1rem;
}
.headshot{
  width:150px;height:150px;
  border-radius:50%;
  object-fit:cover;
  border:3px solid var(--gold);
  margin-bottom:1.5rem;
}
h1#name{
  color:var(--teal);
  font-family:var(--terminal);
  font-size:2rem;
  font-weight:700;
  margin:.2rem 0;
  min-height:2.4rem;
}
.cursor{
  font-weight:bold;
  color:var(--teal);
  font-size:2rem;
  display:inline-block;
  vertical-align:baseline;
}
.tagline{
  font-family:var(--serif);
  font-size:1.2rem;
  line-height:1.6;
  color:var(--text);
  max-width:560px;
  margin:1.15rem auto 1.6rem;
}
.roles{
  display:flex;
  justify-content:center;
  gap:.9rem;
  flex-wrap:wrap;
  font-family:var(--mono);
  font-size:1rem;
  color:var(--slate);
}
.roles span::before{content:"· ";color:var(--teal);}
.roles span:first-child::before{content:"";}

/* ---------- about ---------- */
.prose p{font-size:1.03rem;line-height:1.75;margin:0 0 1.2rem;}
.prose em{color:var(--text);font-style:italic;}
.callout{
  margin:1.7rem 0;
  padding:1.15rem 1.35rem;
  background:var(--surface-mid);
  border-left:3px solid var(--teal);
  border-radius:0 8px 8px 0;
  font-family:var(--serif);
  font-size:1.14rem;
  line-height:1.55;
  color:var(--text);
}
.more{font-family:var(--mono);font-size:.9rem;color:var(--slate);margin-top:1.6rem;}

/* ---------- speaking & writing ---------- */
.group{
  font-family:var(--mono);
  font-size:.95rem;
  color:var(--teal);
  letter-spacing:.05em;
  text-transform:uppercase;
  margin:2rem 0 .5rem;
}
.group:first-of-type{margin-top:.4rem;}
.entry{padding:.9rem 0;border-bottom:1px solid var(--hair);}
.entry .t{font-weight:500;color:var(--text);line-height:1.45;}
.entry .m{font-family:var(--mono);font-size:.82rem;color:var(--slate);margin-top:.3rem;}
.selnote{font-family:var(--mono);font-size:.8rem;color:var(--slate);margin-top:1.5rem;font-style:italic;}

/* ---------- contact ---------- */
.lead{font-size:1.03rem;line-height:1.65;margin-bottom:1.5rem;}
.crow{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:1rem;
  padding:.85rem 0;
  border-bottom:1px solid var(--hair);
  flex-wrap:wrap;
}
.crow .lab{
  font-family:var(--mono);
  font-size:.82rem;
  color:var(--slate);
  text-transform:uppercase;
  letter-spacing:.04em;
}
.crow .lab .sub{
  display:block;
  font-family:var(--sans);
  text-transform:none;
  letter-spacing:0;
  font-size:.74rem;
  margin-top:.15rem;
}

/* ---------- footer (shared) ---------- */
.sitefooter{
  flex-shrink:0;
  border-top:1px solid var(--hair);
  margin-top:2.5rem;
  padding:1.6rem 1.5rem 2rem;
  text-align:center;
  font-family:var(--mono);
  font-size:.85rem;
}
.sitefooter .mark{color:var(--teal);font-weight:600;letter-spacing:.02em;}
.sitefooter .fl{
  display:flex;
  justify-content:center;
  gap:1.4rem;
  flex-wrap:wrap;
  margin-top:.55rem;
}
.sitefooter .fl a{color:var(--teal);}

/* ---------- responsive ---------- */
@media (max-width:640px){
  .topnav .wrap{flex-direction:column;align-items:center;gap:.6rem;}
  .navlinks{justify-content:center;gap:1.1rem;}
  h1#name{font-size:1.35rem;line-height:1.3;}
  .tagline{font-size:1.08rem;}
  main{padding-top:2rem;}
}