:root {
  --paper:      #ffffff;
  --surface:    #f4f3f0;
  --ink:        #16181c;
  --muted:      #6c7178;
  --hairline:   #e3e1dc;
  --accent:     #0e4c8a;
  --accent-ink: #0a3866;

  --wrap:  1120px;
  --gap:   28px;
  --r:     14px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Instrument Sans", ui-sans-serif, system-ui, "Segoe UI", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: #fff; padding: 10px 16px; z-index: 50;
}
.skip:focus { left: 12px; top: 12px; }

.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }
.wrap.narrow { width: min(100% - 40px, 760px); }

/* ---------------------------------------------------------------- topbar */

.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; min-height: 62px;
}
.mark {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none; font-weight: 600;
}
.mark-initials {
  display: grid; place-items: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--ink); color: #fff;
  font-size: 12px; letter-spacing: .04em;
}
.topbar nav { display: flex; gap: 22px; }
.topbar nav a {
  color: var(--muted); text-decoration: none; font-size: 15.5px; font-weight: 500;
}
.topbar nav a:hover { color: var(--ink); }
.topbar nav a[aria-current="page"] { color: var(--ink); }

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

.hero {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
  padding: 68px 0 56px;
}
.hero-photo img {
  width: 300px; height: 300px; object-fit: cover;
  border-radius: var(--r);
}
.hero-text h1 {
  margin: 0 0 20px;
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1.12;
  letter-spacing: -.02em;
  font-weight: 600;
  max-width: 17ch;
}
.hero-text p { margin: 0 0 14px; color: #3b4048; max-width: 62ch; }

.hero-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-size: 15px; font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--ink);
}
.btn:hover { background: #000; color: #fff; }
.btn-quiet {
  background: transparent; color: var(--ink); border-color: var(--hairline);
}
.btn-quiet:hover { background: var(--surface); color: var(--ink); }

/* --------------------------------------------------------------- listing */

.lead-in {
  margin: 0 0 40px;
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
  color: var(--muted);
  font-size: 16px;
}

.group { margin-bottom: 64px; }
.group-head { margin-bottom: 22px; }
.group-head h2 {
  margin: 0; font-size: 21px; font-weight: 600; letter-spacing: -.01em;
}
.group-head p { margin: 3px 0 0; color: var(--muted); font-size: 15px; }

.cards {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap);
}
.card a {
  display: block; height: 100%;
  color: inherit; text-decoration: none;
  border: 1px solid var(--hairline);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--paper);
  transition: border-color .18s ease, box-shadow .18s ease;
}
.card a:hover {
  border-color: #c9c6bf;
  box-shadow: 0 6px 22px rgba(20,22,26,.07);
}
.card-media {
  aspect-ratio: 16 / 10;
  background: var(--surface);
  overflow: hidden;
}
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-media-split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
}
.card-body { padding: 18px 20px 20px; }
.card-body h3 {
  margin: 0 0 6px; font-size: 18.5px; font-weight: 600; letter-spacing: -.01em;
}
.card-blurb { margin: 0 0 14px; color: #3b4048; font-size: 15.5px; }
.card-meta {
  display: flex; justify-content: space-between; gap: 12px;
  margin: 0; padding-top: 12px;
  border-top: 1px solid var(--hairline);
  color: var(--muted); font-size: 14px;
}

/* --------------------------------------------------------------- project */

.project-head { padding: 44px 0 28px; }
.back {
  display: inline-block; margin-bottom: 20px;
  font-size: 15px; text-decoration: none; color: var(--muted);
}
.back:hover { color: var(--ink); }
.back::before { content: "\2190"; margin-right: 7px; }

.project-head h1 {
  margin: 0 0 20px;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.14; letter-spacing: -.02em; font-weight: 600;
  max-width: 20ch;
}
.facts { display: flex; gap: 42px; margin: 0 0 22px; }
.facts div { margin: 0; }
.facts dt { color: var(--muted); font-size: 13.5px; margin-bottom: 2px; }
.facts dd { margin: 0; font-weight: 500; }

.project-body { padding-bottom: 24px; }
.project-body h2 {
  margin: 40px 0 12px;
  font-size: 19px; font-weight: 600; letter-spacing: -.01em;
  padding-top: 18px; border-top: 1px solid var(--hairline);
}
.project-body > h2:first-child { border-top: 0; padding-top: 0; margin-top: 8px; }
.project-body p { margin: 0 0 16px; }

.points { margin: 0 0 18px; padding: 0; list-style: none; }
.points li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 11px;
}
.points li::before {
  content: ""; position: absolute; left: 0; top: .72em;
  width: 9px; height: 1.5px; background: var(--muted);
}
.points strong { font-weight: 600; }

.figures { display: grid; gap: 16px; margin: 24px 0 30px; }
.figures-2 { grid-template-columns: 1fr 1fr; }
.figures-3 { grid-template-columns: repeat(3, 1fr); }
.figures figure { margin: 0; display: flex; flex-direction: column; }
.figures img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: contain;
  padding: 8px;
  border-radius: 10px; border: 1px solid var(--hairline);
  background: var(--surface);
}
.figures-1 img { aspect-ratio: auto; }
.figures figcaption, .video figcaption {
  margin-top: 8px; color: var(--muted); font-size: 14px;
}

.video { margin: 24px 0 30px; }
.video video { width: 100%; border-radius: 10px; background: #000; }
.video-placeholder {
  display: grid; place-content: center; gap: 6px; text-align: center;
  aspect-ratio: 16 / 9;
  border: 1px dashed #c9c6bf; border-radius: 10px;
  background: var(--surface); color: var(--muted);
}
.video-placeholder p { margin: 0; }
.video-placeholder p:first-child { color: var(--ink); font-weight: 500; }
.video-path code { font-size: 13.5px; }

.pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap);
  padding: 34px 0 10px; margin-top: 26px;
  border-top: 1px solid var(--hairline);
}
.pager a {
  display: block; text-decoration: none; color: inherit;
  border: 1px solid var(--hairline); border-radius: var(--r);
  padding: 16px 20px;
}
.pager a:hover { border-color: #c9c6bf; }
.pager span { display: block; color: var(--muted); font-size: 13.5px; margin-bottom: 3px; }
.pager strong { font-weight: 600; font-size: 16px; }
.pager-next { text-align: right; }

/* ---------------------------------------------------------------- resume */

.resume-head { padding: 56px 0 26px; }
.resume-head h1 {
  margin: 0 0 14px; font-size: clamp(30px, 4vw, 42px);
  letter-spacing: -.02em; font-weight: 600;
}
.resume-head p { margin: 0; max-width: 62ch; color: #3b4048; }

.pdf {
  border: 1px solid var(--hairline); border-radius: var(--r);
  overflow: hidden; background: var(--surface);
  margin-bottom: 20px;
}
.pdf object { display: block; width: 100%; height: 1100px; border: 0; }

.notice, .missing {
  border: 1px solid var(--hairline); border-radius: var(--r);
  padding: 30px; background: var(--surface);
}
.notice h2 { margin: 0 0 8px; font-size: 19px; }
.notice p { margin: 0; color: #3b4048; }
.missing { margin: 60px auto; }

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

.footer { margin-top: 72px; border-top: 1px solid var(--hairline); }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 14px 26px;
  align-items: center; justify-content: space-between;
  padding: 26px 0 40px;
}
.footer-copy { margin: 0; color: var(--muted); font-size: 14.5px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-nav a { color: var(--muted); text-decoration: none; font-size: 14.5px; }
.footer-nav a:hover { color: var(--ink); }

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

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 28px; padding: 44px 0 40px; }
  .hero-photo img { width: 200px; height: 200px; }
  .cards { grid-template-columns: 1fr; }
  .figures-3 { grid-template-columns: 1fr 1fr; }
  .pdf object { height: 720px; }
}

@media (max-width: 620px) {
  body { font-size: 16.5px; }
  .mark-name { display: none; }
  .topbar nav { gap: 16px; }
  .figures-2, .figures-3 { grid-template-columns: 1fr; }
  .pager { grid-template-columns: 1fr; }
  .pager-next { text-align: left; }
  .facts { gap: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}