:root{
  --paper:#EEF3F5;
  --paper-alt:#E4EBEE;
  --card:#F7FAFB;
  --ink:#16232E;
  --ink-soft:#4A5A68;
  --blue:#1C4E80;
  --blue-deep:#0E2C46;
  --orange:#E8734A;
  --green:#3F8C6B;
  --line:rgba(28,78,128,0.28);
  --line-soft:rgba(28,78,128,0.14);
  --radius:2px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans', sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;}
.mono{font-family:'IBM Plex Mono', monospace;}
.display{font-family:'Space Grotesk', sans-serif;}

/* blueprint grid texture */
.grid-bg{
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:40px 40px;
}
.grid-bg-dense{
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:20px 20px;
}

.crosshair{
  position:absolute;
  width:18px; height:18px;
  pointer-events:none;
}
.crosshair::before,.crosshair::after{
  content:"";
  position:absolute;
  background:var(--blue);
  opacity:0.55;
}
.crosshair::before{ width:100%; height:1.5px; top:50%; left:0; transform:translateY(-50%);}
.crosshair::after{ height:100%; width:1.5px; left:50%; top:0; transform:translateX(-50%);}
.cx-tl{top:16px; left:16px;}
.cx-tr{top:16px; right:16px;}
.cx-bl{bottom:16px; left:16px;}
.cx-br{bottom:16px; right:16px;}

.wrap{ max-width:1120px; margin:0 auto; padding:0 24px; }

/* nav */
header.site{
  position:fixed; top:0; left:0; right:0; z-index:50;
  background:rgba(238,243,245,0.88);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line-soft);
}
.nav-inner{
  max-width:1120px; margin:0 auto; padding:14px 24px;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:'Space Grotesk', sans-serif; font-weight:600; font-size:15px;
  letter-spacing:0.02em;
  text-decoration:none;
}
.brand-mark{
  width:26px; height:26px; border:1.5px solid var(--blue);
  position:relative; flex-shrink:0;
}
.brand-mark::before,.brand-mark::after{
  content:""; position:absolute; background:var(--orange);
}
.brand-mark::before{ width:60%; height:1.5px; top:50%; left:20%; transform:translateY(-50%);}
.brand-mark::after{ height:60%; width:1.5px; left:50%; top:20%; transform:translateX(-50%);}
nav.links{ display:flex; gap:28px; }
nav.links a{
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px; text-transform:uppercase; letter-spacing:0.06em;
  text-decoration:none; color:var(--ink-soft);
  padding-bottom:3px; border-bottom:1px solid transparent;
  transition:color .2s, border-color .2s;
}
nav.links a:hover, nav.links a:focus-visible{ color:var(--blue); border-color:var(--orange); }
.nav-toggle{ display:none; }

/* section shell */
section{ position:relative; padding:100px 0; }
.section-label{
  font-family:'IBM Plex Mono', monospace;
  font-size:12.5px; letter-spacing:0.14em; text-transform:uppercase;
  color:var(--orange); margin:0 0 10px 0; display:flex; align-items:center; gap:10px;
}
.section-label::before{ content:""; width:24px; height:1.5px; background:var(--orange); display:inline-block; }
h2.section-title{
  font-family:'Space Grotesk', sans-serif; font-weight:600;
  font-size:clamp(28px,4vw,40px); margin:0 0 40px 0; color:var(--blue-deep);
}

/* HERO */
.hero{
  min-height:100svh; display:flex; flex-direction:column; justify-content:center;
  position:relative; padding-top:120px; padding-bottom:140px; overflow:hidden;
}
.hero-tag{
  font-family:'IBM Plex Mono', monospace; font-size:13px; letter-spacing:0.12em;
  text-transform:uppercase; color:var(--blue);
  display:flex; align-items:center; gap:10px; margin-bottom:22px;
}
.hero-tag .dot{ width:7px; height:7px; background:var(--green); border-radius:50%; display:inline-block; }
.hero h1{
  font-family:'Space Grotesk', sans-serif; font-weight:700;
  font-size:clamp(40px,7vw,84px); line-height:0.98; margin:0 0 20px 0;
  color:var(--ink); letter-spacing:-0.01em;
}
.hero h1 span{ color:var(--blue); }
.hero p.lede{
  font-size:clamp(16px,2vw,19px); color:var(--ink-soft); max-width:600px; margin:0 0 40px 0;
}
.hero-cta{ display:flex; gap:16px; flex-wrap:wrap; }
.btn{
  font-family:'IBM Plex Mono', monospace; font-size:13px; letter-spacing:0.05em;
  text-transform:uppercase; text-decoration:none; padding:14px 26px;
  border:1.5px solid var(--blue); color:var(--blue); display:inline-flex; align-items:center; gap:8px;
  transition:background .2s, color .2s, transform .2s;
}
.btn:hover, .btn:focus-visible{ background:var(--blue); color:var(--paper); transform:translateY(-1px); }
.btn.solid{ background:var(--orange); border-color:var(--orange); color:#fff; }
.btn.solid:hover, .btn.solid:focus-visible{ background:#d1613a; border-color:#d1613a; color:#fff; }

/* title block, signature element */
.titleblock{
  border:1.5px solid var(--blue); background:var(--card);
  display:grid; grid-template-columns:repeat(4,1fr);
  max-width:640px; margin-top:64px;
}
.titleblock .cell{
  padding:12px 16px; border-right:1px solid var(--line);
}
.titleblock .cell:last-child{ border-right:none; }
.titleblock .cell .k{
  font-family:'IBM Plex Mono', monospace; font-size:10px; letter-spacing:0.08em;
  text-transform:uppercase; color:var(--ink-soft); display:block; margin-bottom:5px;
}
.titleblock .cell .v{ font-family:'IBM Plex Mono', monospace; font-size:13px; color:var(--ink); }

/* about */
.about-grid{ display:grid; grid-template-columns:1.1fr 0.9fr; gap:60px; align-items:start; }
.about-text p{ color:var(--ink-soft); font-size:16.5px; max-width:52ch; }
.about-text p + p{ margin-top:16px; }
.about-facts{ border-left:1.5px solid var(--line); padding-left:28px; }
.fact{ margin-bottom:22px; }
.fact .k{ font-family:'IBM Plex Mono', monospace; font-size:11px; letter-spacing:0.08em; text-transform:uppercase; color:var(--orange); display:block; margin-bottom:4px; }
.fact .v{ font-size:15.5px; color:var(--ink); }

/* experience log */
.log{ border-top:1.5px solid var(--blue); }
.log-row{
  display:grid; grid-template-columns:90px 170px 1fr; gap:24px;
  padding:26px 0; border-bottom:1px solid var(--line-soft);
  align-items:baseline;
}
.log-row .rev{ font-family:'IBM Plex Mono', monospace; color:var(--orange); font-size:14px; font-weight:600; }
.log-row .period{ font-family:'IBM Plex Mono', monospace; color:var(--ink-soft); font-size:12.5px; letter-spacing:0.02em; }
.log-row .content h3{ margin:0 0 4px 0; font-family:'Space Grotesk',sans-serif; font-size:19px; color:var(--blue-deep); font-weight:600; }
.log-row .content .place{ font-size:13.5px; color:var(--ink-soft); margin-bottom:10px; font-family:'IBM Plex Mono', monospace; }
.log-row .content ul{ margin:0; padding-left:18px; color:var(--ink-soft); font-size:15px; }
.log-row .content li{ margin-bottom:4px; }
.status{ display:inline-flex; align-items:center; gap:6px; font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; letter-spacing:0.06em; color:var(--green); margin-top:10px; }
.status .dot{ width:6px; height:6px; background:var(--green); border-radius:50%; }

/* projects */
.proj-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.proj-card{
  border:1.5px solid var(--blue); background:var(--card); display:flex; flex-direction:column;
  transition:transform .25s, box-shadow .25s;
}
.proj-card:hover{ transform:translateY(-4px); box-shadow:6px 6px 0 var(--line); }
.proj-head{ padding:26px 24px 18px 24px; border-bottom:1px solid var(--line-soft); flex:1; }
.proj-num{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--orange); letter-spacing:0.08em; }
.proj-head h3{ font-family:'Space Grotesk',sans-serif; font-size:21px; margin:8px 0 10px 0; color:var(--blue-deep); }
.proj-head p{ font-size:14.5px; color:var(--ink-soft); margin:0; }
.proj-foot{
  display:grid; grid-template-columns:1fr 1fr; font-family:'IBM Plex Mono', monospace;
}
.proj-foot .cell{ padding:12px 16px; border-right:1px solid var(--line-soft); font-size:11.5px; }
.proj-foot .cell:last-child{ border-right:none; }
.proj-foot .k{ display:block; color:var(--ink-soft); text-transform:uppercase; letter-spacing:0.06em; font-size:9.5px; margin-bottom:4px; }
.proj-link{
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 16px; border-top:1px solid var(--line-soft);
  font-family:'IBM Plex Mono',monospace; font-size:11.5px; text-decoration:none; color:var(--blue);
}
.proj-link:hover, .proj-link:focus-visible{ color:var(--orange); }

/* skills legend */
.legend-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:0; border-top:1.5px solid var(--blue); border-left:1.5px solid var(--blue); }
.legend-col{ border-right:1.5px solid var(--blue); border-bottom:1.5px solid var(--blue); padding:26px 24px; }
.legend-col h4{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--orange); margin:0 0 16px 0; }
.legend-col ul{ list-style:none; margin:0; padding:0; }
.legend-col li{ font-size:15px; color:var(--ink); padding:7px 0; border-bottom:1px dashed var(--line-soft); }
.legend-col li:last-child{ border-bottom:none; }

/* education */
.edu-grid{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.edu-card{ border:1.5px solid var(--blue); background:var(--card); padding:28px; }
.edu-card .k{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--orange); text-transform:uppercase; letter-spacing:0.08em; }
.edu-card h3{ font-family:'Space Grotesk',sans-serif; font-size:21px; margin:10px 0 6px 0; color:var(--blue-deep); }
.edu-card .meta{ font-family:'IBM Plex Mono',monospace; font-size:13px; color:var(--ink-soft); }
.edu-card .score{ margin-top:16px; font-size:14.5px; color:var(--ink); border-top:1px dashed var(--line-soft); padding-top:14px; }

/* contact / footer */
footer.site{
  background:var(--blue-deep); color:var(--paper); padding:100px 0 40px 0; position:relative; overflow:hidden;
}
footer.site .wrap{ position:relative; z-index:2; }
footer .section-label{ color:var(--orange); }
footer h2.section-title{ color:#fff; }
footer p.lede{ color:rgba(238,243,245,0.72); max-width:520px; font-size:17px; }
.contact-links{ display:flex; gap:16px; flex-wrap:wrap; margin-top:36px; }
footer .btn{ border-color:rgba(238,243,245,0.5); color:var(--paper); }
footer .btn:hover, footer .btn:focus-visible{ background:var(--orange); border-color:var(--orange); color:#fff; }
.foot-bottom{
  margin-top:90px; padding-top:24px; border-top:1px solid rgba(238,243,245,0.16);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-family:'IBM Plex Mono', monospace; font-size:11.5px; color:rgba(238,243,245,0.5);
  letter-spacing:0.04em;
}

/* timeline reveal — the one deliberate scroll animation on the page */
.log-row{ opacity:0; transform:translateY(14px); transition:opacity .5s ease, transform .5s ease; }
.log-row.in{ opacity:1; transform:translateY(0); }

/* hero entrance — plays once on load, not tied to scroll */
@keyframes rise{ from{ opacity:0; transform:translateY(14px);} to{ opacity:1; transform:translateY(0);} }
.hero-tag{ animation:rise .6s ease both; }
.hero h1{ animation:rise .7s ease .08s both; }
.hero p.lede{ animation:rise .7s ease .16s both; }
.hero-cta{ animation:rise .7s ease .24s both; }
.titleblock{ animation:rise .7s ease .32s both; }

/* hand-drawn accent under a hero word */
.squiggle{ position:relative; white-space:nowrap; }
.squiggle svg{ position:absolute; left:0; bottom:-6px; width:100%; height:10px; }

/* margin note — a deliberately imperfect, slightly rotated aside */
.margin-note{
  font-family:'IBM Plex Mono', monospace; font-size:12.5px; color:var(--ink-soft);
  border:1px dashed var(--line); background:var(--paper-alt);
  padding:12px 16px; max-width:290px; transform:rotate(-1.4deg);
  position:relative; margin:36px 0 8px auto;
}
.margin-note::before{ content:"note —"; color:var(--orange); margin-right:6px; }

/* skills as tags, uneven weighting instead of matched columns */
.skills-layout{ display:grid; grid-template-columns:1.4fr 1fr; gap:48px; align-items:start; }
.tag-group h4{ font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--orange); margin:0 0 16px 0; }
.tag-group + .tag-group{ margin-top:34px; }
.tags{ display:flex; flex-wrap:wrap; gap:10px; }
.tag{
  font-family:'IBM Plex Mono', monospace; font-size:13.5px; color:var(--ink);
  border:1.3px solid var(--blue); padding:7px 14px; background:var(--card);
}
.tag.big{ font-size:15px; padding:9px 16px; border-width:1.5px; }
.tag.soft{ border-style:dashed; color:var(--ink-soft); border-color:var(--line); }
.soft-list{ border-left:1.5px solid var(--line); padding-left:24px; }
.soft-list p{ font-size:15px; color:var(--ink-soft); margin:0 0 10px 0; }

/* featured project — breaks the even grid on purpose */
.proj-featured{
  border:1.5px solid var(--blue); background:var(--card);
  display:grid; grid-template-columns:1.3fr 1fr; margin-bottom:24px;
}
.proj-featured .ft-copy{ padding:34px 34px 30px 34px; border-right:1px solid var(--line-soft); }
.proj-featured .ft-tag{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--orange); letter-spacing:0.08em; }
.proj-featured h3{ font-family:'Space Grotesk',sans-serif; font-size:26px; margin:10px 0 12px 0; color:var(--blue-deep); }
.proj-featured p{ font-size:15.5px; color:var(--ink-soft); max-width:46ch; }
.proj-featured .ft-meta{ padding:34px; display:flex; flex-direction:column; justify-content:space-between; }
.proj-featured .ft-meta .row{ font-family:'IBM Plex Mono', monospace; font-size:12.5px; margin-bottom:14px; }
.proj-featured .ft-meta .row .k{ display:block; color:var(--ink-soft); text-transform:uppercase; font-size:10px; letter-spacing:0.06em; margin-bottom:3px; }
.proj-featured .ft-meta a{ font-family:'IBM Plex Mono',monospace; font-size:13px; color:var(--blue); text-decoration:none; border-bottom:1px solid var(--blue); align-self:flex-start; }
.proj-featured .ft-meta a:hover, .proj-featured .ft-meta a:focus-visible{ color:var(--orange); border-color:var(--orange); }

/* hamburger icon styles */
.nav-toggle {
  background: none; border: none; cursor: pointer;
  padding: 8px; flex-direction: column; gap: 5px;
  z-index: 100;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--blue);
  transition: all 0.3s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* responsive */
@media (max-width: 860px){
  .nav-toggle { display: flex; }
  nav.links {
    position: fixed; top: 0; right: -100%; width: 100%; height: 100svh;
    background: rgba(238,243,245,0.96); backdrop-filter: blur(10px);
    flex-direction: column; align-items: center; justify-content: center; gap: 32px;
    transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    z-index: 90; display: flex;
  }
  nav.links.active { right: 0; }
  nav.links a { font-size: 18px; }
  
  .about-grid{ grid-template-columns:1fr; gap:36px; }
  .about-facts{ border-left:none; padding-left:0; border-top:1.5px solid var(--line); padding-top:24px; }
  .proj-grid{ grid-template-columns:1fr; }
  .proj-featured{ grid-template-columns:1fr; }
  .proj-featured .ft-copy{ border-right:none; border-bottom:1px solid var(--line-soft); }
  .skills-layout{ grid-template-columns:1fr; }
  .soft-list{ border-left:none; padding-left:0; border-top:1.5px solid var(--line); padding-top:20px; }
  .edu-grid{ grid-template-columns:1fr; }
  .log-row{ grid-template-columns:1fr; gap:6px; }
  .log-row .rev{ order:1; }
  .log-row .period{ order:2; margin-bottom:8px; }
  .log-row .content{ order:3; }
  .titleblock{ grid-template-columns:repeat(2,1fr); }
  .titleblock .cell:nth-child(2){ border-right:none; }
  .margin-note{ margin:24px auto; transform:rotate(-1deg); }
}

@media (max-width: 600px){
  section { padding: 60px 0; }
  .hero { padding-top: 100px; padding-bottom: 80px; }
  .titleblock { grid-template-columns: 1fr; }
  .titleblock .cell { border-right: none; border-bottom: 1px solid var(--line); }
  .titleblock .cell:last-child { border-bottom: none; }
}