:root {
  color-scheme: dark;
  --bg: #07090d;
  --surface: rgba(15, 19, 28, .78);
  --surface-strong: #111722;
  --line: rgba(255, 255, 255, .12);
  --text: #f5f7fb;
  --muted: #9ca5b5;
  --accent: #6d7cff;
  --accent-bright: #8d9aff;
  --lime: #b9f55d;
  --profile-width: 320px;
  --nav-width: 72px;
  --radius: 26px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    var(--bg);
  background-size: 72px 72px;
  line-height: 1.55;
  overflow-x: hidden;
}

a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  padding: 10px 14px;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  background: var(--text);
  color: var(--bg);
  border-radius: 8px;
}
.skip-link:focus {
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  clip-path: none;
}

.ambient {
  position: fixed;
  z-index: -1;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .11;
  pointer-events: none;
}
.ambient-one { top: -180px; right: 8%; background: var(--accent); }
.ambient-two { bottom: -240px; left: 30%; background: #26d4bb; }

.profile-card {
  position: fixed;
  z-index: 10;
  top: 50%;
  left: 32px;
  width: var(--profile-width);
  max-height: calc(100vh - 64px);
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: linear-gradient(145deg, rgba(23,29,43,.92), rgba(9,12,18,.86));
  box-shadow: 0 26px 80px rgba(0,0,0,.34);
  backdrop-filter: blur(18px);
  transform: translateY(-50%);
}

.avatar {
  position: relative;
  display: grid;
  place-items: center;
  width: min(100%, 210px);
  aspect-ratio: 4 / 5;
  margin-inline: auto;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 22px;
  background: #353132;
}
.avatar span {
  font-size: clamp(4rem, 8vw, 6.5rem);
  font-weight: 750;
  letter-spacing: -.09em;
  color: rgba(255,255,255,.9);
  transform: translateX(-.05em);
}
.avatar img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

.profile-kicker, .eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.profile-kicker { margin-top: 24px; }
.profile-card h2 {
  margin: 8px 0 4px;
  font-size: clamp(2.35rem, 3.2vw, 3.3rem);
  line-height: .94;
  letter-spacing: -.055em;
}
.profile-role { margin: 12px 0 0; color: var(--accent-bright); font-weight: 650; }
.profile-note { margin: 20px 0 0; color: var(--muted); font-size: .92rem; }
.socials { display: flex; gap: 10px; margin-top: 22px; }
.socials a {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  font-size: .8rem;
  font-weight: 800;
  transition: .2s ease;
}
.socials a:hover, .socials a:focus-visible { border-color: var(--accent); background: rgba(109,124,255,.16); transform: translateY(-2px); }

.side-nav {
  position: fixed;
  z-index: 10;
  top: 50%;
  right: 24px;
  display: grid;
  gap: 5px;
  width: var(--nav-width);
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(9,12,18,.82);
  backdrop-filter: blur(16px);
  transform: translateY(-50%);
}
.side-nav a {
  position: relative;
  display: grid;
  place-items: center;
  height: 49px;
  border-radius: 13px;
  color: var(--muted);
  text-decoration: none;
  font: 750 .68rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  transition: .2s ease;
}
.side-nav a:hover, .side-nav a:focus-visible, .side-nav a.active { color: var(--text); background: rgba(109,124,255,.16); }
.side-nav a.active::before {
  content: "";
  position: absolute;
  left: -11px;
  width: 3px;
  height: 18px;
  border-radius: 4px;
  background: var(--accent-bright);
}

main {
  width: min(960px, calc(100% - var(--profile-width) - var(--nav-width) - 128px));
  margin-left: calc(var(--profile-width) + 80px);
}
.section {
  min-height: 100vh;
  padding: clamp(90px, 11vw, 150px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 24px;
}
.section:last-child { border-bottom: 0; }

.eyebrow { display: flex; align-items: center; gap: 11px; }
.eyebrow span { width: 28px; height: 1px; background: var(--accent-bright); }

.hero { display: flex; flex-direction: column; justify-content: center; }
.hero h1, .section-heading h2, .contact h2 {
  margin: 24px 0;
  font-weight: 560;
  line-height: .97;
  letter-spacing: -.06em;
}
.hero h1 { max-width: 920px; font-size: clamp(4rem, 7.4vw, 7.2rem); }
.hero h1 em { color: var(--accent-bright); font-style: normal; }
.hero-copy { max-width: 700px; margin: 8px 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: .22s ease;
}
.button-primary { color: #080a0f; border-color: var(--accent-bright); background: var(--accent-bright); }
.button-primary:hover, .button-primary:focus-visible { background: #a7b0ff; transform: translateY(-2px); }
.button-ghost:hover, .button-ghost:focus-visible { border-color: rgba(255,255,255,.36); background: rgba(255,255,255,.06); }
.signal { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 62px; }
.signal span, .app-meta span {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: .75rem;
}

.section-heading { display: grid; grid-template-columns: 1fr minmax(230px, .55fr); align-items: end; gap: 16px 36px; margin-bottom: 58px; }
.section-heading .eyebrow { grid-column: 1 / -1; }
.section-heading h2, .contact h2 { font-size: clamp(3.15rem, 6vw, 6rem); }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p:last-child { margin: 0 0 8px; color: var(--muted); }

.product-featured {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  min-height: 210px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid rgba(141,154,255,.42);
  border-radius: var(--radius);
  background: linear-gradient(125deg, rgba(109,124,255,.2), rgba(255,255,255,.025) 58%);
}
.product-featured::after {
  content: "";
  position: absolute;
  right: -6%;
  bottom: -80%;
  width: 380px;
  height: 300px;
  border-radius: 50%;
  background: var(--accent);
  filter: blur(90px);
  opacity: .2;
}
.product-featured p, .product-group-heading p {
  margin: 0;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.product-featured h3 {
  position: relative;
  z-index: 1;
  margin: 18px 0 0;
  font-size: clamp(2.8rem, 5vw, 5rem);
  line-height: .95;
  letter-spacing: -.055em;
}
.product-featured > span, .product-group-heading span {
  position: relative;
  z-index: 1;
  color: var(--accent-bright);
  font: 700 .72rem/1 ui-monospace, monospace;
}
.product-groups { display: grid; gap: 48px; margin-top: 54px; }
.product-group-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 14px;
}
.product-card {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 150px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(145deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
}
.product-card::before {
  content: "";
  position: absolute;
  top: 24px;
  left: 24px;
  width: 30px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-bright);
}
.product-card h4 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.08;
  letter-spacing: -.035em;
}

.principles { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.principles article { min-height: 290px; padding: 28px 26px; border-right: 1px solid var(--line); }
.principles article:last-child { border-right: 0; }
.principles span { color: var(--accent-bright); font: 700 .72rem/1 ui-monospace, monospace; }
.principles h3 { margin: 72px 0 14px; font-size: 1.42rem; line-height: 1.15; letter-spacing: -.03em; }
.principles p { margin: 0; color: var(--muted); }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 82px); }
.about-lead { margin: 0; font-size: clamp(1.55rem, 2.8vw, 2.4rem); line-height: 1.25; letter-spacing: -.035em; }
.about-copy { color: var(--muted); }
.about-copy p:first-child { margin-top: 0; }
.credentials {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 72px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.credentials article {
  min-height: 220px;
  padding: 26px;
  border-right: 1px solid var(--line);
}
.credentials article:last-child { border-right: 0; }
.credentials span {
  color: var(--accent-bright);
  font: 700 .72rem/1 ui-monospace, monospace;
}
.credentials p {
  margin: 52px 0 10px;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.credentials h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  line-height: 1.15;
  letter-spacing: -.03em;
}
.education {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 42px;
}
.education > p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.education ul {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}
.education li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
  font-size: 1.05rem;
}
.education li:last-child { border-bottom: 1px solid var(--line); }

.contact { min-height: 90vh; display: flex; flex-direction: column; justify-content: center; }
.contact h2 { max-width: 900px; }
.contact > p:not(.eyebrow) { max-width: 650px; color: var(--muted); font-size: 1.08rem; }
.contact-mail { display: flex; justify-content: space-between; gap: 24px; margin-top: 50px; padding: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: clamp(1.4rem, 3vw, 2.6rem); text-decoration: none; letter-spacing: -.035em; }
.contact-mail:hover, .contact-mail:focus-visible { color: var(--accent-bright); }
footer { display: flex; justify-content: space-between; gap: 20px; margin-top: 70px; color: var(--muted); font-size: .82rem; }

:focus-visible { outline: 2px solid var(--lime); outline-offset: 4px; }

@media (min-width: 1600px) {
  main {
    width: min(1180px, calc(100% - var(--profile-width) - var(--nav-width) - 128px));
  }
  .hero h1 { max-width: 1080px; }
  .hero-copy { max-width: 760px; }
}

@media (max-width: 1180px) {
  :root { --profile-width: 280px; }
  .profile-card { left: 22px; padding: 20px; }
  .profile-note { display: none; }
  main { width: calc(100% - var(--profile-width) - 125px); margin-left: calc(var(--profile-width) + 55px); }
}

@media (max-width: 900px) {
  .profile-card {
    position: relative;
    top: auto;
    left: auto;
    width: calc(100% - 40px);
    max-width: 720px;
    max-height: none;
    margin: 20px auto 0;
    display: grid;
    grid-template-columns: 155px 1fr;
    align-items: center;
    gap: 24px;
    transform: none;
  }
  .avatar {
    grid-row: 1 / span 2;
    width: 100%;
    max-width: none;
    margin: 0;
  }
  .profile-kicker { margin-top: 0; }
  .profile-note { display: block; grid-column: 2; margin: 0; }
  .socials { position: absolute; right: 20px; top: 20px; margin: 0; }
  main { width: calc(100% - 40px); max-width: 760px; margin: 0 auto; }
  .section { min-height: auto; padding: 100px 0; }
  .hero { min-height: 80vh; }
  .side-nav { top: auto; right: 50%; bottom: 16px; grid-template-columns: repeat(5, 1fr); width: min(360px, calc(100% - 32px)); transform: translateX(50%); }
  .side-nav a { height: 44px; }
  .side-nav a.active::before { left: 50%; top: -11px; width: 18px; height: 3px; transform: translateX(-50%); }
}

@media (max-width: 640px) {
  body { background-size: 52px 52px; }
  .profile-card { grid-template-columns: 104px 1fr; border-radius: 24px; }
  .profile-card h2 { font-size: 2.1rem; }
  .profile-role { margin-top: 8px; }
  .profile-note { grid-column: 1 / -1; }
  .socials { position: static; grid-column: 1 / -1; }
  .hero h1 { font-size: clamp(2.6rem, 11vw, 4rem); }
  .section-heading { grid-template-columns: 1fr; }
  .section-heading > p:last-child { max-width: 520px; }
  .product-featured { min-height: 180px; padding: 26px; }
  .product-grid { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr; }
  .principles article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .principles article:last-child { border-bottom: 0; }
  .principles h3 { margin-top: 36px; }
  .about-grid { grid-template-columns: 1fr; }
  .credentials { grid-template-columns: 1fr; }
  .credentials article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .credentials article:last-child { border-bottom: 0; }
  .credentials p { margin-top: 34px; }
  .education { grid-template-columns: 1fr; gap: 16px; }
  .contact-mail, footer { flex-direction: column; }
  footer { padding-bottom: 74px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}