:root {
  --ink: #18202a;
  --muted: #5b6573;
  --line: #d9dee7;
  --panel: #f6f8fb;
  --brand: #0f766e;
  --brand-dark: #0b514b;
  --accent: #d97706;
  --paper: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 5vw;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  letter-spacing: 0;
}

.brand-logo {
  display: block;
  width: min(420px, 52vw);
  height: auto;
}

nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(340px, 1.1fr);
  align-items: center;
  gap: 42px;
  min-height: 86vh;
  padding: 46px 5vw 40px;
  background: #eef3f2;
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--brand-dark);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 13px;
}

h1 {
  margin: 0;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 14px;
  font-size: 34px;
  letter-spacing: 0;
}

h3 {
  margin: 14px 0 8px;
  font-size: 18px;
}

.lead {
  max-width: 560px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.45;
}

.tagline {
  margin: 18px 0 0;
  color: var(--brand-dark);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.22;
}

.promise {
  margin: 10px 0 0;
  color: var(--accent);
  font-size: 18px;
  font-weight: 800;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--brand);
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.primary,
button {
  color: #fff;
  background: var(--brand);
}

.secondary {
  color: var(--brand-dark);
  background: #fff;
}

.hero-image {
  width: 100%;
  max-height: 74vh;
  object-fit: contain;
  border: 1px solid #cdd7df;
  box-shadow: 0 22px 42px rgba(24, 32, 42, 0.16);
  background: #fff;
}

.section {
  padding: 72px 5vw;
  border-top: 1px solid var(--line);
}

.two-col,
.form-section,
.buy-band,
.product-link {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1fr);
  gap: 36px;
  align-items: start;
}

.video-box {
  display: grid;
  place-items: center;
  min-height: 280px;
  padding: 24px;
  color: #fff;
  background: #1f2937;
}

.video-frame {
  padding: 0;
  overflow: hidden;
  background: #0f1720;
}

.video-frame video {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: contain;
  background: #0f1720;
}

.video-box span {
  font-size: 26px;
  font-weight: 800;
}

.video-box small {
  color: #cbd5e1;
}

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

.steps article,
.card {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
}

.steps article {
  padding: 22px;
}

.steps span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

.steps p,
.section p {
  color: var(--muted);
  line-height: 1.5;
}

.form-section {
  background: var(--panel);
}

.soft-section {
  background: #f9fbfd;
}

.product-link {
  align-items: center;
  background: #ffffff;
}

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

form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 22px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 1px solid #b8c2cf;
  border-radius: 4px;
  font: inherit;
}

.check,
form button,
.download-box {
  grid-column: 1 / -1;
}

.check {
  grid-template-columns: 18px 1fr;
  align-items: start;
  color: var(--muted);
  font-weight: 500;
}

.download-box {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid #9bc7bd;
  background: #e8f5f2;
  border-radius: 6px;
}

.download-box a {
  color: var(--brand-dark);
  font-weight: 800;
}

.buy-band {
  align-items: center;
  background: #17212b;
  color: #fff;
}

.buy-band p {
  color: #d7dee7;
}

.buy-band small {
  display: block;
  margin-top: 10px;
  color: #aebdcc;
  line-height: 1.4;
}

footer {
  display: flex;
  justify-content: space-between;
  padding: 24px 5vw;
  color: var(--muted);
}

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

  .hero,
  .two-col,
  .form-section,
  .buy-band,
  .steps,
  form {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}