:root {
  --bg: #080b10;
  --panel: #0f141d;
  --panel-soft: #0b1017;
  --text: #f4f7fa;
  --muted: #9aa6b5;
  --muted-2: #758193;
  --line: #202936;
  --accent: #a8ff78;
  --accent-2: #79f2d0;
  --max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 80% -5%, rgba(121, 242, 208, .09), transparent 32rem),
    radial-gradient(circle at 5% 22%, rgba(168, 255, 120, .06), transparent 28rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.container {
  width: min(var(--max), calc(100% - 42px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255,255,255,.055);
  background: rgba(8,11,16,.82);
  backdrop-filter: blur(18px);
}

.nav {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 22px rgba(168,255,120,.65);
}

.nav-links {
  display: flex;
  gap: 26px;
  font-size: .88rem;
  color: var(--muted);
}

.nav-links a:hover { color: var(--text); }

.hero {
  min-height: 82vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 110px 0 82px;
}

.kicker,
.section-label,
.timeline-type {
  color: var(--accent);
  font-size: .73rem;
  font-weight: 750;
  letter-spacing: .17em;
}

.kicker { margin-bottom: 25px; }

.hero h1 {
  max-width: 1020px;
  margin: 0;
  font-size: clamp(3.25rem, 7.3vw, 6.7rem);
  line-height: .96;
  letter-spacing: -.065em;
  font-weight: 620;
}

.hero h1 span {
  display: block;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-copy {
  width: min(720px, 100%);
  margin: 34px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-weight: 650;
  font-size: .92rem;
}

.button:hover { border-color: #455264; }

.button-primary {
  color: #071009;
  background: var(--text);
  border-color: var(--text);
}

.signal-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 78px;
}

.signal-row span,
.tags span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.018);
  font-size: .78rem;
}

.section {
  padding: 104px 0;
  border-top: 1px solid var(--line);
}

.section-label { margin-bottom: 28px; }

h2 {
  margin: 0;
  font-size: clamp(2.1rem, 4.4vw, 4rem);
  line-height: 1.03;
  letter-spacing: -.048em;
  font-weight: 620;
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 80px;
}

.prose {
  color: var(--muted);
  font-size: 1.02rem;
}

.prose p:first-child { margin-top: 0; }

.section-heading-row {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  align-items: end;
  gap: 50px;
  margin-bottom: 42px;
}

.section-heading-row > p {
  margin: 0;
  color: var(--muted);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.project {
  min-height: 360px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 17px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.034), rgba(255,255,255,.012));
}

.project.featured {
  background:
    radial-gradient(circle at 100% 0, rgba(168,255,120,.09), transparent 20rem),
    linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.012));
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.number {
  color: var(--accent);
  font-weight: 750;
  font-size: .8rem;
}

.badge {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .64rem;
  font-weight: 750;
  letter-spacing: .08em;
  color: var(--muted);
}

.badge.active {
  color: var(--accent);
  border-color: rgba(168,255,120,.26);
}

.badge.completed {
  color: var(--accent-2);
  border-color: rgba(121,242,208,.25);
}

.project h3 {
  margin: 48px 0 10px;
  font-size: 1.55rem;
  line-height: 1.15;
  letter-spacing: -.03em;
}

.project p {
  color: var(--muted);
  margin: 0 0 14px;
}

.project-note {
  font-size: .9rem;
  color: var(--muted-2) !important;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: auto;
  padding-top: 26px;
}

.credibility-note {
  margin-top: 18px;
  padding: 17px 19px;
  border-left: 2px solid var(--accent);
  background: rgba(168,255,120,.035);
  color: var(--muted);
  font-size: .88rem;
}

.credibility-note strong { color: var(--text); }

.founder-layout {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 55px;
  align-items: start;
}

.monogram {
  width: 150px;
  height: 150px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(168,255,120,.25);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(168,255,120,.14), rgba(121,242,208,.045));
  color: var(--accent);
  font-size: 2.2rem;
  font-weight: 750;
  letter-spacing: -.05em;
}

.role {
  margin: 10px 0 25px;
  color: var(--accent);
  font-weight: 600;
}

.founder-copy { max-width: 760px; }

.timeline {
  border-top: 1px solid var(--line);
}

.timeline-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 40px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.timeline-item h3 {
  margin: 0 0 4px;
  font-size: 1.25rem;
  letter-spacing: -.02em;
}

.timeline-item p {
  max-width: 750px;
  margin: 8px 0 0;
  color: var(--muted);
}

.timeline-item .institution {
  color: var(--text);
  opacity: .78;
  margin-top: 0;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.principles > div {
  min-height: 215px;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--panel-soft);
}

.principles strong {
  color: var(--accent);
  font-size: .76rem;
}

.principles h3 {
  margin: 45px 0 7px;
  font-size: 1.15rem;
}

.principles p {
  margin: 0;
  color: var(--muted);
  font-size: .9rem;
}

.contact-card {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 55px;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
}

.contact-card > div:first-child > p {
  max-width: 600px;
  color: var(--muted);
}

.contact-placeholder {
  align-self: center;
  padding: 22px;
  border: 1px dashed #334052;
  border-radius: 13px;
  color: var(--muted);
}

.contact-placeholder strong { color: var(--text); }
.contact-placeholder .small { margin-bottom: 0; font-size: .84rem; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 34px 0 50px;
  color: var(--muted-2);
  font-size: .83rem;
}

@media (max-width: 820px) {
  .nav-links { display: none; }

  .hero {
    min-height: auto;
    padding: 94px 0 70px;
  }

  .hero h1 { font-size: clamp(3rem, 13vw, 5rem); }

  .split,
  .section-heading-row,
  .project-grid,
  .principles,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .split,
  .section-heading-row { gap: 30px; }

  .project { min-height: 330px; }

  .founder-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 520px) {
  .container { width: min(var(--max), calc(100% - 28px)); }
  .section { padding: 82px 0; }
  .project { padding: 22px; }
  .contact-card { padding: 26px; }
  .footer { flex-direction: column; }
}