:root {
  --blue: #1f6feb;
  --red: #ef233c;
  --yellow: #ffc400;
  --navy: #0b1f3a;
  --ink: #26364a;
  --muted: #64748b;
  --light: #f6f8fc;
  --white: #ffffff;
  --border: #e5eaf3;
  --shadow: 0 20px 50px rgba(11, 31, 58, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--light);
}
a { color: inherit; text-decoration: none; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.section-padding { padding: 80px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; color: var(--navy); }
.brand-logo { display: block; height: 75px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 28px; font-weight: 600; font-size: .95rem; }
.nav-links a { color: var(--ink); }
.nav-cta { padding: 11px 18px; color: white !important; border-radius: 999px; background: var(--red); }

.hero {
  padding: 86px 0 60px;
  background:
    radial-gradient(circle at 10% 20%, rgba(31,111,235,.12), transparent 30%),
    radial-gradient(circle at 85% 10%, rgba(255,196,0,.22), transparent 34%),
    linear-gradient(135deg, #ffffff 0%, #eef4ff 100%);
}
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 50px; align-items: center; }
.eyebrow { color: var(--red); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: .8rem; }
.hero h1, .section-heading h2, .why h2, .scientist-card h2, .cta-card h2 {
  margin: 14px 0 18px;
  color: var(--navy);
  line-height: 1.08;
}
.hero h1 { font-size: clamp(2.3rem, 5.2vw, 4.35rem); letter-spacing: -0.06em; }
.hero p { font-size: 1.15rem; line-height: 1.8; color: var(--muted); max-width: 680px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 32px 0 22px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--blue); color: white; box-shadow: 0 12px 24px rgba(31,111,235,.25); }
.btn-secondary { background: white; color: var(--navy); border: 1px solid var(--border); }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-badges span { background: white; border: 1px solid var(--border); border-radius: 999px; padding: 9px 14px; font-size: .9rem; font-weight: 600; }

.hero-card {
  min-height: 460px;
  position: relative;
  border-radius: 38px;
  background: var(--white);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.hero-card:before {
  content: "";
  position: absolute;
  width: 330px;
  height: 330px;
  border-radius: 50%;
  background: conic-gradient(from 90deg, var(--blue), var(--red), var(--yellow), var(--blue));
  opacity: .18;
  filter: blur(2px);
}
.robot-face {
  position: relative;
  width: 270px;
  height: 195px;
  border: 8px solid var(--navy);
  border-radius: 58px;
  background: white;
  z-index: 2;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 18px;
}
.robot-face:before,
.robot-face:after {
  content: "";
  position: absolute;
  width: 38px;
  height: 80px;
  background: var(--red);
  top: 58px;
  border: 7px solid var(--navy);
}
.robot-face:before { left: -42px; border-radius: 24px 0 0 24px; }
.robot-face:after { right: -42px; border-radius: 0 24px 24px 0; }
.antenna {
  position: absolute;
  top: -78px;
  width: 8px;
  height: 70px;
  background: var(--navy);
}
.antenna:before {
  content: "";
  position: absolute;
  top: -20px;
  left: -16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--yellow);
  border: 7px solid var(--navy);
}
.screen {
  width: 178px;
  height: 68px;
  background: var(--navy);
  border-radius: 26px;
  display: flex;
  justify-content: center;
  gap: 40px;
  align-items: center;
}
.screen span {
  width: 34px;
  height: 18px;
  border: 7px solid white;
  border-bottom: 0;
  border-radius: 22px 22px 0 0;
}
.code { color: var(--blue); font-size: 2.7rem; font-weight: 900; letter-spacing: .02em; }
.floating-card {
  position: absolute;
  z-index: 3;
  background: white;
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(11,31,58,.12);
  border-radius: 18px;
  padding: 13px 17px;
  font-weight: 800;
  color: var(--navy);
}
.card-one { top: 80px; left: 35px; border-left: 7px solid var(--red); }
.card-two { bottom: 96px; right: 32px; border-left: 7px solid var(--yellow); }
.card-three { bottom: 38px; left: 62px; border-left: 7px solid var(--blue); }

.intro { padding: 56px 0 10px; }
.intro p {
  margin: 0;
  background: white;
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 34px;
  box-shadow: 0 12px 35px rgba(11,31,58,.06);
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--muted);
}

.section-heading { text-align: center; max-width: 760px; margin: 0 auto 42px; }
.section-heading h2 { font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -0.05em; }
.program-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.program-card {
  background: white;
  border: 1px solid var(--border);
  border-bottom: 6px solid var(--yellow);
  border-radius: 26px;
  padding: 28px;
  min-height: 260px;
  box-shadow: 0 14px 36px rgba(11,31,58,.07);
  grid-column: span 2;
}
.program-card:nth-child(2), .program-card:nth-child(5) { border-bottom-color: var(--red); }
.program-card:nth-child(3) { border-bottom-color: var(--blue); }
.program-card:nth-child(4) { grid-column: 2 / span 2; }
.program-card:nth-child(5) { grid-column: 4 / span 2; }
.program-card.wide { grid-column: span 2; }
.program-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  font-size: 1.7rem;
}
.program-icon.blue { background: rgba(31,111,235,.1); }
.program-icon.red { background: rgba(239,35,60,.1); }
.program-icon.yellow { background: rgba(255,196,0,.18); }
.program-card h3 { margin: 0 0 12px; color: var(--navy); font-size: 1.16rem; }
.program-card p { margin: 0; color: var(--muted); line-height: 1.7; font-size: .96rem; }

.why { background: white; }
.why-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: start; }
.why h2 { font-size: clamp(2rem, 4vw, 3.1rem); letter-spacing: -0.05em; }
.why p { color: var(--muted); line-height: 1.8; }
.why-list { display: grid; gap: 16px; }
.why-item { display: grid; gap: 6px; background: var(--light); border: 1px solid var(--border); border-radius: 20px; padding: 20px; }
.why-item strong { color: var(--navy); }
.why-item span { color: var(--muted); line-height: 1.6; }

.scientist-section { padding: 72px 0; }
.scientist-card {
  border-radius: 34px;
  padding: 46px;
  background: linear-gradient(135deg, var(--navy), #153b78);
  color: white;
  position: relative;
  overflow: hidden;
}
.scientist-card:after {
  content: "🔬";
  position: absolute;
  right: 44px;
  bottom: 20px;
  font-size: 8rem;
  opacity: .15;
}
.scientist-card .eyebrow, .scientist-card h2 { color: white; }
.scientist-card h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
.scientist-card p { max-width: 760px; line-height: 1.8; color: rgba(255,255,255,.82); }

.cta-section { padding: 20px 0 86px; }
.cta-card {
  text-align: center;
  background: white;
  border: 1px solid var(--border);
  border-radius: 34px;
  padding: 54px 28px;
  box-shadow: var(--shadow);
}
.cta-card h2 { font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -0.05em; }
.cta-card p { max-width: 700px; margin: 0 auto 28px; color: var(--muted); line-height: 1.8; }

.footer { padding: 28px 0; background: var(--navy); color: white; }
.footer-content { display: flex; justify-content: space-between; gap: 20px; align-items: center; flex-wrap: wrap; }
.footer p { margin: 0; color: rgba(255,255,255,.76); }
.footer a { color: var(--yellow); font-weight: 800; }

@media (max-width: 980px) {
  .hero-grid, .why-grid { grid-template-columns: 1fr; }
  .hero-card { min-height: 390px; }
  .program-grid { grid-template-columns: repeat(2, 1fr); }
  .program-card.wide { grid-column: span 2; }
}

@media (max-width: 680px) {
  .container { width: min(100% - 28px, 1120px); }
  .nav { height: auto; padding: 14px 0; align-items: flex-start; gap: 12px; }
  .brand-logo { height: 75px; }
  .nav-links { gap: 12px; font-size: .84rem; flex-wrap: wrap; justify-content: flex-end; }
  .hero { padding-top: 54px; }
  .hero h1 { font-size: 2.65rem; }
  .hero p { font-size: 1rem; }
  .hero-card { min-height: 330px; }
  .robot-face { transform: scale(.75); }
  .floating-card { font-size: .78rem; padding: 10px 12px; }
  .program-grid { grid-template-columns: 1fr; }
  .program-card.wide { grid-column: span 1; }
  .section-padding { padding: 58px 0; }
  .intro p, .scientist-card, .cta-card { padding: 28px; }
}

/* Sliding tools and platform logos */
.tools-strip {
  padding: 54px 0 72px;
  background: linear-gradient(180deg, var(--light) 0%, #ffffff 100%);
  overflow: hidden;
}
.section-heading.compact { margin-bottom: 26px; }
.section-heading.compact h2 {
  font-size: clamp(1.55rem, 3vw, 2.4rem);
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}
.logo-marquee {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 8px 0 12px;
}
.logo-marquee:before,
.logo-marquee:after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 130px;
  z-index: 2;
  pointer-events: none;
}
.logo-marquee:before {
  left: 0;
  background: linear-gradient(90deg, #ffffff 0%, rgba(255,255,255,0) 100%);
}
.logo-marquee:after {
  right: 0;
  background: linear-gradient(270deg, #ffffff 0%, rgba(255,255,255,0) 100%);
}
.logo-track {
  display: flex;
  gap: 18px;
  width: max-content;
  animation: logoScroll 34s linear infinite;
}
.logo-track:hover { animation-play-state: paused; }
.logo-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 170px;
  padding: 16px 20px;
  border-radius: 22px;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: 0 12px 28px rgba(11, 31, 58, 0.08);
  font-weight: 800;
  color: var(--navy);
}
.logo-pill img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  display: block;
}
.logo-pill span { white-space: nowrap; }
@keyframes logoScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (max-width: 680px) {
  .tools-strip { padding: 42px 0 56px; }
  .logo-marquee:before, .logo-marquee:after { width: 60px; }
  .logo-track { animation-duration: 28s; gap: 12px; }
  .logo-pill { min-width: 145px; padding: 13px 15px; font-size: .88rem; }
  .logo-pill img { width: 28px; height: 28px; }
}