:root {
  --ink: #101418;
  --muted: #56616c;
  --line: #dbe2e8;
  --paper: #f6faf8;
  --white: #ffffff;
  --accent: #72c593;
  --accent-dark: #3c9f68;
  --accent-soft: #e7f6ee;
  --blue: #2596be;
  --black: #080b0f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

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

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(8, 11, 15, 0.9);
  color: var(--white);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  line-height: 1.1;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 2px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  font-weight: 800;
}

.brand small {
  display: block;
  margin-top: 4px;
  color: #b9c2ca;
  font-size: 13px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: 6px;
  color: #e8edf2;
  font-size: 15px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(114, 197, 147, 0.14);
  color: var(--accent);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: transparent;
  padding: 9px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--white);
}

.hero {
  position: relative;
  min-height: calc(100svh - 72px);
  overflow: hidden;
  background: var(--black);
  color: var(--white);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 11, 15, 0.92), rgba(8, 11, 15, 0.68) 48%, rgba(8, 11, 15, 0.28)),
    linear-gradient(0deg, rgba(8, 11, 15, 0.78), rgba(8, 11, 15, 0.08) 45%),
    url("https://images.pexels.com/photos/18471529/pexels-photo-18471529/free-photo-of-a-laboratory-with-computers-and-monitors-on-the-desk.jpeg")
      center / cover;
}

.hero::after {
  position: absolute;
  right: -120px;
  bottom: -200px;
  width: 520px;
  height: 520px;
  content: "";
  border: 90px solid rgba(114, 197, 147, 0.22);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(760px, calc(100% - 40px));
  padding: 108px 0 96px;
  margin-left: max(28px, calc((100vw - 1180px) / 2));
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: 64px;
  line-height: 1.02;
  font-weight: 900;
}

.hero-lead {
  max-width: 650px;
  margin: 24px 0 0;
  color: #e2e8ee;
  font-size: 21px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 12px 18px;
  font-weight: 800;
  transition:
    transform 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--black);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #8bd8a9;
}

.btn-secondary {
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.section .btn-secondary,
.contact-section .btn-secondary {
  border-color: var(--line);
  background: var(--white);
  color: var(--ink);
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 42px;
}

.hero-facts span {
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(8, 11, 15, 0.38);
  color: #f4f6f8;
  font-size: 14px;
}

.hero-device {
  position: absolute;
  right: max(22px, calc((100vw - 1220px) / 2));
  bottom: 32px;
  z-index: 2;
  width: min(430px, 33vw);
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.5));
}

.intro-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  width: min(1180px, calc(100% - 40px));
  margin: -42px auto 0;
  position: relative;
  z-index: 5;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.intro-band div {
  min-height: 120px;
  padding: 24px;
  background: var(--white);
}

.intro-band strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.intro-band span {
  color: var(--muted);
  line-height: 1.5;
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 92px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 64px;
  align-items: start;
}

.section h2,
.venue-band h2,
.contact-section h2 {
  margin: 0;
  font-size: 42px;
  line-height: 1.12;
  font-weight: 900;
}

.section-copy p:not(.section-kicker),
.venue-band p:not(.section-kicker),
.contact-section p:not(.section-kicker) {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.section-copy a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.feature-list {
  display: grid;
  gap: 14px;
}

.feature-list article,
.audience-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: var(--white);
}

.feature-list span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 16px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 900;
}

.feature-list h3,
.audience-grid h3 {
  margin: 0 0 8px;
  font-size: 21px;
}

.feature-list p,
.audience-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.audience-section {
  padding-top: 32px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 32px;
}

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

.venue-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.62fr);
  gap: 46px;
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  margin: 18px auto 0;
  padding: 40px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(8, 11, 15, 0.96), rgba(18, 49, 39, 0.94)),
    var(--black);
  color: var(--white);
}

.venue-band p:not(.section-kicker) {
  color: #dce5ee;
  font-size: 17px;
  line-height: 1.75;
}

.venue-details {
  display: grid;
  gap: 12px;
}

.venue-details span {
  display: block;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.06);
  color: #f5fbf8;
  font-weight: 800;
}

.certificate-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1fr);
  gap: 56px;
  align-items: start;
}

.certification-points {
  display: grid;
  gap: 16px;
}

.certification-points article {
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: 8px;
  padding: 22px;
  background: var(--white);
  box-shadow: 0 18px 55px rgba(16, 20, 24, 0.06);
}

.certification-points span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.certification-points strong {
  display: block;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.25;
}

.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto 84px;
  padding: 40px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(114, 197, 147, 0.95), rgba(202, 238, 216, 0.94)),
    var(--accent);
  color: var(--black);
}

.contact-section p {
  max-width: 660px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.contact-section .btn-primary {
  background: var(--black);
  color: var(--white);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  background: var(--black);
  color: #aeb8c2;
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero h1 {
    font-size: 48px;
  }

  .hero-device {
    opacity: 0.22;
    width: 430px;
  }

  .intro-band,
  .section-grid,
  .audience-grid,
  .venue-band,
  .certificate-section {
    grid-template-columns: 1fr;
  }

  .contact-section,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .site-header {
    min-height: 64px;
    padding: 0 18px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    right: 14px;
    left: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    padding: 8px;
    background: rgba(8, 11, 15, 0.98);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 14px;
  }

  .hero {
    min-height: 88svh;
  }

  .hero-content {
    width: calc(100% - 34px);
    padding: 84px 0 82px;
    margin-left: 17px;
  }

  .hero h1 {
    font-size: 39px;
  }

  .hero-lead {
    font-size: 18px;
  }

  .hero-device {
    right: -120px;
    bottom: 10px;
    width: 360px;
  }

  .intro-band,
  .section,
  .venue-band,
  .contact-section {
    width: calc(100% - 28px);
  }

  .intro-band {
    margin-top: -26px;
  }

  .intro-band div {
    min-height: auto;
    padding: 20px;
  }

  .section {
    padding: 64px 0;
  }

  .section h2,
  .venue-band h2,
  .contact-section h2 {
    font-size: 32px;
  }

  .venue-band,
  .contact-section {
    padding: 22px;
  }

  .btn {
    width: 100%;
  }
}