/* ===========================================================
   Fonts
   =========================================================== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');
 
/* ===========================================================
   Tokens
   =========================================================== */
:root {
  --paper: #f4f5f2;
  --paper-alt: #eceae3;
  --ink: #1c2b39;
  --ink-soft: #55636f;
  --blueprint: #2f5d8a;
  --blueprint-dark: #1f3f5c;
  --line: #c7d0d8;
  --accent: #b04a2c;
 
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
 
  --max-width: 1100px;
}
 
/* ===========================================================
   Reset & base
   =========================================================== */
* { box-sizing: border-box; }
 
html {
  scroll-behavior: smooth;
}
 
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
 
h1, h2, h3 {
  font-family: var(--font-head);
  color: var(--ink);
  line-height: 1.15;
  margin: 0 0 0.5em;
}
 
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 600; }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 600; }
h3 { font-size: 1.1rem; font-weight: 600; }
 
p { margin: 0 0 1em; max-width: 62ch; }
 
a {
  color: var(--blueprint);
  text-decoration: none;
}
a:hover { color: var(--blueprint-dark); }
 
:focus-visible {
  outline: 2px solid var(--blueprint);
  outline-offset: 3px;
}
 
.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
 
.field-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--blueprint);
  margin: 0 0 0.6em;
}
 
section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--line);
}
 
/* ===========================================================
   Header
   =========================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 245, 242, 0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
 
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
 
.wordmark {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--ink);
  border: 1px solid var(--ink);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}
.wordmark:hover { color: var(--ink); border-color: var(--blueprint); }
 
.nav {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
}
 
.nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
}
.nav a:hover { color: var(--blueprint); }
 
/* ===========================================================
   Hero
   =========================================================== */
.hero {
  position: relative;
  padding-top: 5rem;
  padding-bottom: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
  -webkit-mask-image: linear-gradient(to bottom, black 0%, black 60%, transparent 100%);
          mask-image: linear-gradient(to bottom, black 0%, black 60%, transparent 100%);
}
 
.hero-inner { padding-bottom: 4rem; }
 
.hero-role {
  font-family: var(--font-mono);
  color: var(--ink-soft);
  font-size: 1rem;
  margin-bottom: 1.25rem;
}
 
.hero-tagline {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 56ch;
}
 
.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
 
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--ink);
}
 
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover { background: var(--blueprint-dark); border-color: var(--blueprint-dark); color: #fff; }
 
.btn-secondary {
  background: transparent;
  color: var(--ink);
}
.btn-secondary:hover { border-color: var(--blueprint); color: var(--blueprint); }
 
/* Title block strip, echoes an engineering drawing title block */
.title-block {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink);
  background: var(--paper);
}
 
.tb-cell {
  padding: 0.9rem 1.5rem;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.tb-cell:last-child { border-right: none; }
 
.tb-key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-soft);
}
.tb-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink);
}
 
/* ===========================================================
   About
   =========================================================== */
.about-inner {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 3rem;
  align-items: start;
}
 
.photo-frame {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper-alt);
}
 
.photo-frame::before,
.photo-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--blueprint);
}
.photo-frame::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.photo-frame::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }
 
.photo-placeholder {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
}
 
/* ===========================================================
   Skills — bill of materials table
   =========================================================== */
.bom-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  font-size: 0.95rem;
}
 
.bom-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.78rem;
  color: var(--ink-soft);
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--ink);
}
 
.bom-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
 
.bom-table td:first-child {
  font-family: var(--font-mono);
  color: var(--blueprint);
  width: 3rem;
}
 
.bom-table td:nth-child(2) {
  font-weight: 600;
  width: 14rem;
}
 
/* ===========================================================
   Projects
   =========================================================== */
.project-grid {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
 
.project-card {
  background: var(--paper);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}
 
.project-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}
 
.status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  white-space: nowrap;
  padding: 0.2rem 0.5rem;
  border: 1px solid currentColor;
}
.status-done { color: var(--blueprint); }
.status-progress { color: var(--accent); }
 
.project-card p { font-size: 0.95rem; color: var(--ink-soft); }
 
.project-meta {
  margin: 0.75rem 0 1rem;
  display: grid;
  gap: 0.4rem;
  font-size: 0.85rem;
}
.project-meta div { display: flex; gap: 0.5rem; }
.project-meta dt {
  font-family: var(--font-mono);
  color: var(--ink-soft);
  min-width: 3.5rem;
}
.project-meta dd { margin: 0; color: var(--ink); }
 
.project-link {
  margin-top: auto;
  font-weight: 600;
  font-size: 0.9rem;
}
 
/* ===========================================================
   Education — timeline
   =========================================================== */
.timeline {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  border-left: 2px solid var(--line);
}
 
.timeline li {
  position: relative;
  padding: 0 0 2.25rem 1.75rem;
}
.timeline li:last-child { padding-bottom: 0; }
 
.timeline li::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 0.4rem;
  width: 10px;
  height: 10px;
  background: var(--paper);
  border: 2px solid var(--blueprint);
  border-radius: 50%;
}
 
.timeline-date {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--blueprint);
  margin-bottom: 0.3rem;
}
 
.timeline p { color: var(--ink-soft); font-size: 0.95rem; }
 
/* ===========================================================
   Contact
   =========================================================== */
.contact { border-bottom: none; }
 
.contact-links {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}
 
/* ===========================================================
   Footer
   =========================================================== */
.site-footer {
  padding: 1.5rem 0 2.5rem;
}
 
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}
 
/* ===========================================================
   Responsive
   =========================================================== */
@media (max-width: 720px) {
  .about-inner { grid-template-columns: 1fr; }
  .photo-frame { max-width: 220px; }
  .title-block { grid-template-columns: repeat(2, 1fr); }
  .tb-cell:nth-child(2) { border-right: none; }
  section { padding: 3.5rem 0; }
}
 
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}