:root {
  --deep: #030817;
  --navy: #0a1f4a;
  --blue: #134089;
  --title: #9dbcf0;
  --text: #dbe6fa;
  --white: #ffffff;
  --line: rgba(255, 255, 255, 0.18);
  --pad: clamp(20px, 3.4vw, 52px);
  --body: "Montserrat", Arial, sans-serif;
  --display: "Roboto Condensed", "Arial Narrow", sans-serif;
}

* { box-sizing: border-box; }

html { min-height: 100%; background: var(--deep); scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, var(--blue) 0%, var(--navy) 34%, var(--deep) 100%) fixed;
  color: var(--text);
  font-family: var(--body);
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- Header ---------- */
.top {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: var(--pad);
}
.page-home .top { position: fixed; }

.logo-h1 { margin: 0; font: inherit; text-align: left; text-transform: none; color: inherit; }
.logo { display: block; color: var(--white); text-transform: uppercase; line-height: 0.86; }
.logo b { display: block; font-size: 34px; font-weight: 800; letter-spacing: -0.05em; }
.logo b:nth-child(2)::after { content: "."; }
.logo span {
  display: block;
  margin-top: 7px;
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.13em;
  white-space: nowrap;
}

.nav { display: flex; gap: clamp(16px, 2.2vw, 34px); padding-top: 6px; }
.nav a, .menu a {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.25s;
}
.nav a:hover, .nav a.on, .menu a:hover, .menu a.on { color: var(--white); }

.burger {
  display: none;
  width: 44px;
  height: 44px;
  padding: 12px 9px;
  background: none;
  border: 0;
  cursor: pointer;
}
.burger i { display: block; height: 2px; margin: 0 0 7px; background: var(--white); transition: transform 0.3s, opacity 0.3s; }
.menu-open .burger i:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.menu-open .burger i:nth-child(2) { opacity: 0; }
.menu-open .burger i:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

.menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-content: center;
  gap: 14px;
  text-align: center;
  background: rgba(3, 8, 23, 0.96);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.menu a { font-size: 26px; }
.menu-open .menu { opacity: 1; visibility: visible; }

/* ---------- Home slideshow ---------- */
.show { position: fixed; inset: 0; overflow: hidden; background: var(--deep); }
.show::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 34vh;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(3, 8, 23, 0.6), transparent);
}
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease; }
.slide.is-active { opacity: 1; z-index: 1; }
.slide-img { position: absolute; inset: 0; background-size: cover; background-position: center; }
/* Each photo starts slightly zoomed in and pulls back to its full size over the 6 seconds it is shown. */
.slide.is-active .slide-img { animation: zoom-out 6s linear both; }
@keyframes zoom-out { from { transform: scale(1.14); } to { transform: scale(1); } }

.slide-note {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}
.slide-note b { display: block; font: 700 clamp(60px, 12vw, 170px) / 1 var(--display); letter-spacing: 0; color: rgba(255, 255, 255, 0.14); }

.dots { position: fixed; right: var(--pad); bottom: var(--pad); z-index: 3; display: flex; gap: 5px; }
.dots button {
  width: 12px;
  height: 20px;
  padding: 9px 0;
  background: rgba(255, 255, 255, 0.35);
  background-clip: content-box;
  border: 0;
  cursor: pointer;
  transition: background-color 0.3s, width 0.3s;
}
.dots button.on { width: 30px; background-color: var(--white); }

/* ---------- Inner pages ---------- */
main { flex: 1; padding-top: clamp(150px, 17vw, 215px); }
.inner { max-width: 1160px; margin: 0 auto; padding: 0 var(--pad); }

h1 {
  margin: 0 0 clamp(28px, 4vw, 52px);
  text-align: center;
  font: 700 clamp(36px, 4.4vw, 54px) / 1.1 var(--display);
  text-transform: uppercase;
  color: var(--title);
}
h2 {
  scroll-margin-top: 10px;
  margin: clamp(50px, 7vw, 90px) 0 26px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
  text-align: center;
  font: 700 clamp(26px, 3vw, 36px) / 1.1 var(--display);
  text-transform: uppercase;
  color: var(--white);
}
.lead {
  margin: 0 0 22px;
  font-size: clamp(17px, 1.9vw, 23px);
  font-weight: 800;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--white);
}
.lead.center, .center { text-align: center; }
p { margin: 0 0 18px; }
strong { color: var(--white); font-weight: 700; }

/* About */
.about { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(28px, 5vw, 70px); align-items: start; }
.portrait { aspect-ratio: 3 / 4; background: rgba(255, 255, 255, 0.06); border: 1px dashed var(--line); display: grid; place-items: center; text-transform: uppercase; letter-spacing: 0.16em; font-size: 12px; overflow: hidden; }
.portrait.has { border: 0; }
.portrait img { width: 100%; height: 100%; object-fit: cover; }

.cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(24px, 5vw, 70px); }
.cols h3, .card h3 { margin: 0 0 10px; font-size: 15px; font-weight: 800; text-transform: uppercase; color: var(--white); }
.cols ul { margin: 0; padding-left: 18px; }
.cols li { margin-bottom: 6px; }

.btn {
  display: inline-block;
  margin-top: 14px;
  padding: 13px 26px;
  background: var(--white);
  color: var(--deep);
  border: 0;
  border-radius: 4px;
  font: 800 12px var(--body);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.25s, color 0.25s;
}
.btn:hover { background: var(--title); }

/* Work */
.links + .stats, .inner .links { margin-bottom: clamp(28px, 4vw, 44px); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border-block: 1px solid var(--line); }
.stat { padding: clamp(24px, 3.4vw, 44px) 20px; text-align: center; background: var(--navy); }
.stat b { display: block; font: 700 clamp(40px, 4.6vw, 66px) / 1 var(--display); color: var(--white); margin-bottom: 12px; }
.stat span { display: block; max-width: 30ch; margin: 0 auto; font-size: 13px; line-height: 1.5; }

.role { display: grid; grid-template-columns: 170px 1fr; gap: 12px 40px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.role:last-child { border-bottom: 0; }
.role .years { font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--title); }
.role h3 { margin: 0 0 4px; font: 700 30px / 1.1 var(--display); text-transform: uppercase; color: var(--white); }
.role .place { font-size: 12px; font-weight: 500; letter-spacing: 0.04em; color: var(--title); margin-bottom: 8px; }
.role h4 { margin: 0 0 8px; font-size: 15px; font-weight: 800; line-height: 1.35; text-transform: uppercase; color: var(--white); }
.role .job { font-weight: 800; text-transform: uppercase; font-size: 13px; color: var(--white); margin-bottom: 12px; }
.role ul { margin: 0; padding-left: 18px; }

.patents { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.4vw, 32px); align-items: start; margin-top: 30px; }
.patent { padding-top: 18px; border-top: 2px solid var(--title); }
.patent h4 { margin: 0 0 10px; font-size: 14px; font-weight: 800; line-height: 1.4; text-transform: uppercase; color: var(--white); }
.patent p { margin: 0 0 12px; font-size: 13.5px; }
.patent summary { display: inline-block; cursor: pointer; list-style: none; font-size: 12px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--title); transition: color 0.25s; }
.patent summary::-webkit-details-marker { display: none; }
.patent summary::after { content: " +"; }
.patent details[open] summary::after { content: " –"; }
.patent summary:hover { color: var(--white); }
.patent .shut, .patent details[open] .open { display: none; }
.patent details[open] .shut { display: inline; }
.patent dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 14px 0; font-size: 13px; }
.patent dt { font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; font-size: 11px; color: var(--title); align-self: center; }
.patent dd { margin: 0; color: var(--white); }

.more { display: inline-block; margin-top: 10px; font-size: 12px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--title); transition: color 0.25s; }
.more:hover { color: var(--white); }

.links { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.links a { padding: 13px 26px; border: 1px solid var(--line); border-radius: 4px; font-size: 12px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--white); transition: background 0.25s, color 0.25s; }
.links a:hover { background: var(--white); color: var(--deep); }

/* Life */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: clamp(28px, 3.4vw, 44px) clamp(20px, 3vw, 40px); }
.cards.four { grid-template-columns: repeat(4, 1fr); }
.card { padding-top: 18px; border-top: 2px solid var(--title); }
.card small { display: block; margin-bottom: 6px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--title); }
.card p { margin: 0; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(40px, 6vw, 80px); }
.tile { position: relative; aspect-ratio: 1; margin: 0; overflow: hidden; background: rgba(255, 255, 255, 0.05); }
.tile img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1), filter 0.4s; }
.tile:hover img { transform: scale(1.06); filter: brightness(1.1); }
.tile figcaption {
  position: absolute;
  left: 18px;
  bottom: 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  opacity: 0;
  transition: opacity 0.3s;
}
.tile:hover figcaption, .tile.empty figcaption { opacity: 1; }
.tile.empty { outline: 1px dashed var(--line); outline-offset: -1px; }
.tile.empty figcaption { color: rgba(255, 255, 255, 0.5); }

/* Contact */
.contact { max-width: 680px; text-align: center; }
.btn.big { margin: 6px 0 0; padding: 18px 34px; font-size: 14px; }

/* Footer */
.foot { padding: clamp(50px, 7vw, 90px) var(--pad) 30px; text-align: center; }
.socials { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 26px; font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.socials a { color: rgba(255, 255, 255, 0.72); transition: color 0.25s; }
.socials a:hover { color: var(--white); }
.copy { margin-top: 16px; font-size: 9px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.7; }

.page-home { overflow: hidden; }
.page-home .foot { display: none; }

/* Fade content in on load */
main > * { animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  main > * { animation: none; }
  .slide { transition: none; }
  .slide.is-active .slide-img { animation: none; }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .burger { display: block; }
  .logo b { font-size: 28px; }
  .about { grid-template-columns: 1fr; }
  .patents { grid-template-columns: 1fr 1fr; }
  .cards.four { grid-template-columns: 1fr 1fr; }
  .cols { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .about .portrait { order: -1; max-width: 340px; margin: 0 auto; width: 100%; }
  .role { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .dots { display: none; }
}

@media (max-width: 520px) {
  .cards.four, .cols, .patents { grid-template-columns: 1fr; }
}