:root {
  --ink: #15191b;
  --muted: #5d6867;
  --paper: #f4f2eb;
  --surface: #ffffff;
  --line: #d8ddd7;
  --green: #21c96d;
  --green-dark: #137947;
  --graphite: #262b2e;
  --amber: #f2c15b;
  --shadow: 0 22px 60px rgba(21, 25, 27, 0.14);
}

* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid rgba(216, 221, 215, 0.8);
  background: rgba(244, 242, 235, 0.9);
  backdrop-filter: blur(18px);
}

.brand,
.nav-links,
.actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  text-decoration: none;
  font-weight: 800;
}

.brand img,
.page-header img,
.icon-showcase img,
.steps img,
.download-card img {
  border-radius: 22%;
  box-shadow: 0 12px 28px rgba(21, 25, 27, 0.18);
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

.hero {
  min-height: calc(100vh - 67px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  align-items: center;
  gap: clamp(28px, 6vw, 80px);
  padding: clamp(38px, 7vw, 86px) clamp(18px, 5vw, 64px);
}

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

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(3.4rem, 10vw, 8.8rem);
  line-height: 0.9;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.lead {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.4vw, 1.65rem);
  line-height: 1.45;
}

.actions {
  flex-wrap: wrap;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 850;
}

.button.primary {
  color: #07130d;
  background: var(--green);
}

.button.secondary {
  color: var(--ink);
  border: 1px solid var(--line);
  background: #fff;
}

.icon-showcase {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.icon-showcase img {
  width: min(100%, 360px);
  display: block;
  margin: 0 auto 20px;
}

.icon-showcase p,
.split p,
.panel p,
.download-card p,
li {
  color: var(--muted);
  line-height: 1.65;
}

.band,
.split,
.content-page {
  padding: clamp(38px, 7vw, 82px) clamp(18px, 5vw, 64px);
}

.section-heading {
  max-width: 760px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 26px;
}

.steps article,
.panel,
.download-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.steps article {
  min-height: 230px;
  padding: 20px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: start;
  background: var(--graphite);
}

.split h2,
.split .eyebrow {
  color: #fff;
}

.split p {
  margin: 0;
  color: #d9e2dc;
  font-size: 1.18rem;
}

.content-page {
  max-width: 1180px;
  margin: 0 auto;
}

.content-page.narrow {
  max-width: 940px;
}

.page-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 28px;
}

.panel,
.download-card {
  margin-top: 18px;
  padding: clamp(20px, 4vw, 34px);
}

.ordered {
  margin: 0;
  padding-left: 24px;
}

code {
  padding: 2px 5px;
  border-radius: 5px;
  color: #10331f;
  background: #e5f7ec;
}

.download-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  border-color: rgba(33, 201, 109, 0.45);
}

.protocol-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.protocol-grid ul {
  padding-left: 18px;
}

.warning {
  border-color: rgba(242, 193, 91, 0.85);
}

.legal h2 {
  margin-top: 28px;
  font-size: 1.45rem;
}

.legal h2:first-child {
  margin-top: 0;
}

footer {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 28px clamp(18px, 5vw, 64px);
  color: #d9e2dc;
  background: var(--graphite);
}

footer span {
  margin-right: auto;
  font-weight: 850;
}

@media (max-width: 860px) {
  .hero,
  .steps,
  .split,
  .protocol-grid,
  .download-card {
    grid-template-columns: 1fr;
  }

  .page-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .icon-showcase img {
    width: min(100%, 260px);
  }
}