:root{
  --bg: #0a0b0c;
  --bg-raised: #121315;
  --line: #232629;
  --text: #e9e6df;
  --text-dim: #8b9097;
  --copper: #ff8a3d;
  --cyan: #5fd8c9;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
  --sans: "Inter", -apple-system, sans-serif;
  --max: 880px;
}

*{box-sizing:border-box; margin:0; padding:0;}

html{scroll-behavior:smooth;}

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

@media (prefers-reduced-motion: no-preference){
  body{ animation: fade-in .6s ease both; }
}
@keyframes fade-in{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:none;} }

a{ color:inherit; }

::selection{ background:var(--copper); color:#0a0b0c; }

/* faint engineering grid behind everything */
.grid-overlay{
  position:fixed; inset:0; pointer-events:none; z-index:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity:.18;
  mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black 10%, transparent 70%);
}

/* ---------------- HERO ---------------- */
.hero{
  position:relative; z-index:1;
  border-bottom:1px solid var(--line);
  padding: 96px 24px 72px;
}
.hero-inner{ max-width:var(--max); margin:0 auto; }

.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--mono); font-size:12px; letter-spacing:.12em;
  color:var(--cyan); text-transform:uppercase;
  border:1px solid var(--line); padding:5px 10px; border-radius:3px;
  margin-bottom:28px;
}
.dot{
  width:6px; height:6px; border-radius:50%; background:var(--cyan);
  box-shadow:0 0 8px var(--cyan);
}
@media (prefers-reduced-motion: no-preference){
  .dot{ animation: pulse 2.4s ease-in-out infinite; }
}
@keyframes pulse{ 0%,100%{opacity:1;} 50%{opacity:.35;} }

.hero h1{
  font-family:var(--mono); font-weight:800;
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing:-0.01em;
  margin-bottom:14px;
}

.role{
  font-family:var(--mono); color:var(--copper);
  font-size:15px; letter-spacing:.04em;
  margin-bottom:18px;
}

.tagline{
  max-width:560px; color:var(--text-dim); font-size:17px;
  margin-bottom:32px;
}

.links{ display:flex; flex-wrap:wrap; gap:10px; }
.links a{
  font-family:var(--mono); font-size:13px;
  border:1px solid var(--line); padding:8px 14px; border-radius:3px;
  text-decoration:none; color:var(--text);
  transition: border-color .15s ease, color .15s ease;
}
.links a:hover, .links a:focus-visible{
  border-color:var(--copper); color:var(--copper);
  outline: none;
}

/* ---------------- SECTIONS ---------------- */
main{ position:relative; z-index:1; max-width:var(--max); margin:0 auto; padding: 0 24px; }

.section{ padding: 64px 0; border-bottom:1px solid var(--line); }
.section:last-of-type{ border-bottom:none; }

.section-head{
  display:flex; align-items:baseline; justify-content:space-between;
  gap:16px; margin-bottom:28px; flex-wrap:wrap;
}
.section-head h2{
  font-family:var(--mono); font-size:20px; font-weight:700;
}
.section-meta{
  font-family:var(--mono); font-size:11px; letter-spacing:.08em;
  color:var(--text-dim); text-transform:uppercase;
}

/* ---------------- DATASHEET / ARTICLES (signature element) ---------------- */
.datasheet{ border:1px solid var(--line); border-radius:4px; overflow:hidden; }

.ds-header-row, .ds-row{
  display:grid;
  grid-template-columns: 90px 100px 1fr 80px;
  gap: 16px;
  align-items:start;
}

.ds-header-row{
  padding: 10px 18px;
  font-family:var(--mono); font-size:11px; letter-spacing:.08em;
  color:var(--text-dim); text-transform:uppercase;
  background: var(--bg-raised);
  border-bottom:1px solid var(--line);
}

.ds-row{
  padding: 20px 18px;
  border-bottom:1px solid var(--line);
  text-decoration:none; color:var(--text);
  transition: background .15s ease;
}
.ds-row:last-child{ border-bottom:none; }
.ds-row:hover, .ds-row:focus-visible{ background: var(--bg-raised); outline:none; }
.ds-row[data-link="false"]{ cursor:default; }

.ds-addr{
  font-family:var(--mono); font-size:13px; color:var(--cyan);
}

.ds-tag{
  font-family:var(--mono); font-size:11px; letter-spacing:.06em;
  color:var(--copper); border:1px solid var(--line);
  padding:3px 8px; border-radius:3px; width:fit-content; height:fit-content;
}

.ds-content .ds-title{
  font-weight:600; font-size:15.5px; margin-bottom:6px;
}
.ds-content .ds-summary{
  font-size:13.5px; color:var(--text-dim); line-height:1.55;
}
.ds-langs{
  display:flex; gap:8px; margin-top:10px;
}
.lang-badge{
  font-family:var(--mono); font-size:11px; font-weight:700;
  letter-spacing:.04em;
  border:1px solid var(--line); border-radius:3px;
  padding:4px 9px;
  text-decoration:none; color:var(--cyan);
  transition: border-color .15s ease, background .15s ease;
}
.lang-badge:hover, .lang-badge:focus-visible{
  border-color:var(--cyan); background: rgba(95,216,201,0.08);
  outline:none;
}

.ds-date{
  font-family:var(--mono); font-size:12px; color:var(--text-dim);
  text-align:right;
}

@media (max-width: 640px){
  .ds-header-row{ display:none; }
  .ds-row{
    grid-template-columns: 1fr;
    gap:10px;
  }
  .ds-date{ text-align:left; }
}

/* ---------------- ABOUT ---------------- */
.about-body{
  display:flex; gap:32px; align-items:flex-start; flex-wrap:wrap;
}

.about-avatar{
  flex:0 0 96px; width:96px; height:96px; border-radius:50%;
  border:2px solid var(--line);
  background:var(--bg-raised);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--mono); font-weight:800; font-size:1.5rem;
  color:var(--copper);
  overflow:hidden;
}
.about-avatar img{ width:100%; height:100%; object-fit:cover; }

.about-text{ flex:1; min-width:220px; }

.about-text p{
  font-size:15.5px; color:#d0cdc6; line-height:1.7;
  margin-bottom:14px;
}
.about-text p:last-of-type{ margin-bottom:20px; }

.about-stack{
  display:flex; flex-wrap:wrap; gap:8px; margin-top:4px;
}
.stack-badge{
  font-family:var(--mono); font-size:11.5px; letter-spacing:.04em;
  border:1px solid var(--line); border-radius:3px;
  padding:4px 10px; color:var(--text-dim);
  transition: border-color .15s ease, color .15s ease;
}
.stack-badge:hover{ border-color:var(--copper); color:var(--copper); }


/* ---------------- PROJECTS GRID ---------------- */
.projects-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap:14px;
}
.project-card{
  border:1px solid var(--line); border-radius:4px; padding:20px;
  text-decoration:none; color:var(--text);
  transition: border-color .15s ease, transform .15s ease;
  display:block;
}
.project-card:hover, .project-card:focus-visible{
  border-color:var(--cyan); transform:translateY(-2px); outline:none;
}
.project-card .p-name{
  font-family:var(--mono); font-weight:700; font-size:14.5px;
  color:var(--cyan); margin-bottom:8px;
}
.project-card .p-desc{ font-size:13.5px; color:var(--text-dim); }

/* ---------------- FOOTER ---------------- */
.footer{
  position:relative; z-index:1;
  max-width:var(--max); margin:0 auto;
  padding: 40px 24px 64px;
  font-family:var(--mono); font-size:12px; color:var(--text-dim);
  display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap;
}