:root {
  color-scheme: light;
  --navy-950: #111a3f;
  --navy-900: #172457;
  --blue-600: #3155e7;
  --blue-500: #4667ec;
  --teal-500: #2ec9a3;
  --teal-100: #dff8f1;
  --ink: #172033;
  --muted: #69738a;
  --line: #dce3ef;
  --surface: #ffffff;
  --canvas: #f2f5fa;
  --shadow: 0 24px 70px rgba(23, 36, 87, 0.16);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(rgba(49, 85, 231, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(49, 85, 231, 0.035) 1px, transparent 1px),
    var(--canvas);
  background-size: 34px 34px;
}

a {
  color: inherit;
}

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

.site-header {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(5, 117, 165, 0.2);
}

.brand span {
  display: grid;
  line-height: 1;
}

.brand strong {
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.brand small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.test-label {
  padding: 8px 13px;
  border: 1px solid rgba(49, 85, 231, 0.18);
  border-radius: 999px;
  color: var(--blue-600);
  background: rgba(255, 255, 255, 0.76);
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
  gap: clamp(36px, 7vw, 88px);
  align-items: center;
  min-height: 620px;
  padding: clamp(54px, 8vw, 96px);
  border-radius: 34px;
  color: #fff;
  background:
    radial-gradient(circle at 84% 16%, rgba(46, 201, 163, 0.24), transparent 27%),
    radial-gradient(circle at 6% 94%, rgba(70, 103, 236, 0.46), transparent 31%),
    linear-gradient(135deg, var(--navy-950), var(--navy-900) 62%, #20367f);
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -195px;
  bottom: -210px;
  border: 52px solid rgba(255, 255, 255, 0.06);
  border-radius: 50%;
}

.hero-copy,
.download-card {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal-500);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.intro {
  max-width: 650px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
  line-height: 1.65;
}

.feature-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.feature-strip span {
  padding: 9px 13px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.86rem;
  font-weight: 650;
}

.download-card {
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 30px 70px rgba(6, 12, 38, 0.35);
  backdrop-filter: blur(16px);
}

.card-heading {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.card-heading p {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 750;
  text-transform: uppercase;
}

.card-heading h2 {
  margin: 0;
  font-size: 1.36rem;
  letter-spacing: -0.025em;
}

.windows-mark {
  display: grid;
  grid-template-columns: repeat(2, 13px);
  gap: 3px;
  flex: 0 0 auto;
  padding: 13px;
  border-radius: 13px;
  background: var(--navy-900);
}

.windows-mark i {
  display: block;
  width: 13px;
  height: 13px;
  background: var(--teal-500);
}

.package-meta {
  margin: 6px 0 24px;
}

.package-meta div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid #edf0f5;
}

.package-meta dt,
.package-meta dd {
  margin: 0;
  font-size: 0.9rem;
}

.package-meta dt {
  color: var(--muted);
}

.package-meta dd {
  font-weight: 700;
  text-align: right;
}

.download-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 58px;
  padding: 0 20px;
  border-radius: 12px;
  color: #fff;
  background: var(--blue-600);
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.download-button:not(.is-disabled):hover {
  transform: translateY(-2px);
  background: var(--blue-500);
  box-shadow: 0 12px 26px rgba(49, 85, 231, 0.28);
}

.download-button:focus-visible {
  outline: 3px solid var(--teal-500);
  outline-offset: 3px;
}

.download-button svg {
  width: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.download-button.is-disabled {
  cursor: not-allowed;
  background: #8a94aa;
}

.download-status {
  margin: 14px 2px 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.steps,
.requirements,
.notice {
  margin-top: 24px;
  border: 1px solid rgba(23, 36, 87, 0.08);
  background: var(--surface);
  box-shadow: 0 16px 44px rgba(23, 36, 87, 0.07);
}

.steps {
  padding: clamp(38px, 6vw, 68px);
  border-radius: 28px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.section-heading h2,
.requirements h2 {
  margin-bottom: 0;
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  letter-spacing: -0.04em;
}

.steps ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 210px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fbfcfe;
}

.steps li > span {
  display: inline-block;
  margin-bottom: 38px;
  color: var(--blue-600);
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.steps h3 {
  margin-bottom: 10px;
  font-size: 1.14rem;
}

.steps p,
.requirements p,
.notice p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

code {
  color: var(--navy-900);
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.9em;
  font-weight: 700;
}

.requirements {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(36px, 8vw, 100px);
  padding: clamp(38px, 6vw, 68px);
  border-radius: 28px;
}

.requirements h2 {
  margin-bottom: 18px;
}

.requirements ul {
  display: grid;
  align-content: center;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.requirements li {
  position: relative;
  padding: 15px 18px 15px 48px;
  border-radius: 12px;
  background: #f5f8fd;
  font-weight: 650;
}

.requirements li::before {
  content: "✓";
  position: absolute;
  left: 17px;
  color: #11836a;
  font-weight: 900;
}

.notice {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 26px 30px;
  border-radius: 20px;
  border-left: 5px solid var(--teal-500);
}

.notice > span {
  display: grid;
  place-items: center;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: var(--navy-900);
  background: var(--teal-100);
  font-family: Georgia, serif;
  font-weight: 800;
}

.notice h2 {
  margin-bottom: 5px;
  font-size: 1rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 42px 2px 52px;
  color: var(--muted);
  font-size: 0.88rem;
}

footer div {
  display: grid;
  gap: 4px;
}

footer strong {
  color: var(--ink);
}

footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 58px 36px 40px;
  }

  .download-card {
    max-width: 560px;
  }

  .steps ol {
    grid-template-columns: 1fr;
  }

  .steps li {
    min-height: 0;
  }

  .steps li > span {
    margin-bottom: 20px;
  }

  .requirements {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-header,
  main,
  footer {
    width: min(100% - 24px, 1180px);
  }

  .site-header {
    min-height: 78px;
  }

  .test-label {
    display: none;
  }

  .hero {
    padding: 44px 20px 22px;
    border-radius: 22px;
  }

  h1 {
    font-size: clamp(2.45rem, 15vw, 3.4rem);
  }

  .download-card {
    padding: 22px;
  }

  .package-meta div {
    display: grid;
    gap: 4px;
  }

  .package-meta dd {
    text-align: left;
  }

  .steps,
  .requirements {
    padding: 34px 22px;
    border-radius: 22px;
  }

  .notice {
    padding: 24px 20px;
  }

  footer {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .download-button {
    transition: none;
  }
}