:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --navy: #0B1F3A;
  --blue: #1769E0;
  --cyan: #19D3E6;
  --teal: #19B8A6;
  --gold: #F6C453;
  --cloud: #F5F8FC;
  --slate: #5B6B7F;
  --ink: #081426;
  --white: #FFFFFF;
}

* { box-sizing: border-box; }

html { background: var(--cloud); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 90% 7%, rgba(25, 211, 230, .12), transparent 30rem),
    radial-gradient(circle at 15% 28%, rgba(23, 105, 224, .10), transparent 32rem),
    var(--cloud);
}

a { color: inherit; }

.site-header,
main,
footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  min-height: 94px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand img { display: block; width: 176px; height: auto; }

.language {
  text-decoration: none;
  font-weight: 650;
  color: var(--slate);
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(11, 31, 58, .11);
  background: rgba(255,255,255,.64);
}

.language:hover { color: var(--blue); border-color: rgba(23,105,224,.3); }

.hero {
  padding: clamp(76px, 12vw, 155px) 0 clamp(78px, 10vw, 125px);
  max-width: 930px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
  font-weight: 750;
}

h1 {
  max-width: 880px;
  margin: 0;
  color: var(--navy);
  font-size: clamp(3.1rem, 7.8vw, 7.5rem);
  line-height: .94;
  letter-spacing: -.065em;
}

.lead {
  max-width: 760px;
  margin: 34px 0 0;
  color: var(--slate);
  font-size: clamp(1.12rem, 2vw, 1.5rem);
  line-height: 1.58;
}

.hero-actions {
  margin-top: 38px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 12px;
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 14px 34px rgba(8,20,38,.14);
}

.button:hover { background: var(--blue); }

.status { color: var(--slate); font-size: .94rem; }

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-bottom: clamp(80px, 11vw, 135px);
}

.principles article {
  position: relative;
  min-height: 290px;
  padding: 30px;
  border: 1px solid rgba(11,31,58,.09);
  border-radius: 22px;
  background: rgba(255,255,255,.76);
  box-shadow: 0 18px 50px rgba(11,31,58,.055);
}

.signal {
  width: 10px;
  height: 10px;
  display: block;
  margin-bottom: 58px;
  border-radius: 999px;
  background: var(--gold);
  box-shadow: 0 0 0 7px rgba(246,196,83,.14);
}

.principles article:nth-child(2) .signal { background: var(--teal); box-shadow: 0 0 0 7px rgba(25,184,166,.12); }
.principles article:nth-child(3) .signal { background: var(--cyan); box-shadow: 0 0 0 7px rgba(25,211,230,.12); }

h2 {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 1.35rem;
  letter-spacing: -.025em;
}

.principles p {
  margin: 0;
  color: var(--slate);
  line-height: 1.65;
}

footer {
  min-height: 92px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  border-top: 1px solid rgba(11,31,58,.09);
  color: var(--slate);
  font-size: .88rem;
}

@media (max-width: 820px) {
  .principles { grid-template-columns: 1fr; }
  .principles article { min-height: auto; }
  .signal { margin-bottom: 34px; }
  footer { align-items: flex-start; flex-direction: column; justify-content: center; }
}

@media (max-width: 520px) {
  .site-header, main, footer { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 78px; }
  .brand img { width: 148px; }
  .hero { padding-top: 62px; }
  h1 { font-size: clamp(3rem, 15vw, 4.9rem); }
}