:root {
  color-scheme: dark;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: #f4f7ff;
  background: #080b16;
  font-synthesis: none;
  text-rendering: optimizelegibility;

  --muted: #9aa7c2;
  --line: rgb(157 174 219 / 16%);
  --accent: #8fffc7;
  --violet: #a899ff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(ellipse at 78% 8%, rgb(88 66 148 / 20%), transparent 34%),
    radial-gradient(ellipse at 23% 30%, rgb(37 67 83 / 28%), transparent 40%), #080b16;
}

a {
  color: inherit;
}

a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.page-shell {
  width: min(100% - 40px, 1160px);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  transform: translateY(-150%);
  border-radius: 8px;
  padding: 10px 14px;
  color: #081018;
  background: var(--accent);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.brand,
.site-nav,
.download-actions,
.download-card,
.steps-list li,
.closing-cta,
.site-footer {
  display: flex;
  align-items: center;
}

.site-header {
  min-height: 82px;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand,
.footer-brand {
  color: #e9f2ff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-decoration: none;
}

.brand {
  gap: 11px;
}

.brand img {
  display: block;
  filter: drop-shadow(0 0 10px rgb(143 255 199 / 26%));
}

.brand strong,
.footer-brand strong {
  color: var(--accent);
}

.site-nav {
  gap: clamp(18px, 3vw, 34px);
  color: #c1cbe0;
  font-size: 13px;
}

.site-nav a,
.site-footer a {
  text-decoration: none;
  transition: color 150ms ease;
}

.site-nav a:hover,
.site-footer a:hover {
  color: var(--accent);
}

.site-nav .nav-download {
  border: 1px solid rgb(143 255 199 / 42%);
  border-radius: 999px;
  padding: 10px 15px;
  color: var(--accent);
  background: rgb(143 255 199 / 6%);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr);
  align-items: center;
  gap: clamp(36px, 6vw, 76px);
  padding: clamp(62px, 9vw, 108px) 0 88px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

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

h1,
h2,
h3 {
  font-family: "Segoe UI", system-ui, sans-serif;
  letter-spacing: -0.04em;
}

.hero h1 {
  max-width: 12ch;
  margin-bottom: 18px;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 0.99;
}

.hero-description {
  max-width: 53ch;
  margin-bottom: 27px;
  color: #b4bfd5;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.65;
}

.download-actions {
  gap: 12px;
}

.download-card {
  position: relative;
  min-height: 76px;
  flex: 1 1 0;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  border: 1px solid rgb(143 255 199 / 30%);
  border-radius: 13px;
  padding: 13px 42px 13px 16px;
  color: #07120e;
  background: var(--accent);
  box-shadow: 0 9px 28px rgb(143 255 199 / 12%);
  text-decoration: none;
  transition:
    transform 150ms ease,
    background-color 150ms ease;
}

.download-card:hover {
  transform: translateY(-2px);
  background: #b0ffdb;
}

.download-linux {
  border-color: var(--line);
  color: #edf2fc;
  background: rgb(255 255 255 / 4%);
  box-shadow: none;
}

.download-linux:hover {
  background: rgb(255 255 255 / 8%);
}

.download-name {
  font-size: 13px;
  font-weight: 750;
}

.download-format {
  margin-top: 5px;
  color: rgb(10 23 18 / 70%);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.download-linux .download-format {
  color: var(--muted);
}

.download-icon {
  position: absolute;
  top: 50%;
  right: 15px;
  transform: translateY(-50%);
  font-size: 20px;
}

.download-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.setup-link {
  color: #d9e3f4;
  text-decoration-color: rgb(217 227 244 / 45%);
  text-underline-offset: 3px;
}

.setup-link:hover {
  color: var(--accent);
}

.hero-visual {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  margin: 0;
  background:
    radial-gradient(ellipse at 50% 42%, rgb(42 74 94 / 45%), transparent 53%),
    linear-gradient(145deg, rgb(18 25 43 / 96%), rgb(10 15 29 / 98%));
  box-shadow:
    0 28px 80px rgb(0 0 0 / 40%),
    inset 0 1px rgb(255 255 255 / 5%);
}

.couch-scenes {
  position: absolute;
  width: 100%;
  height: 100%;
  inset: 0;
  object-fit: cover;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.benefits,
.how-it-works {
  border-top: 1px solid var(--line);
  padding: 64px 0 74px;
}

.section-heading {
  margin-bottom: 25px;
}

.section-heading .eyebrow {
  margin-bottom: 10px;
}

.section-heading h2,
.closing-cta h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.benefit-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 23px;
  background: linear-gradient(145deg, rgb(18 25 43 / 96%), rgb(11 16 30 / 96%));
}

.benefit-number {
  display: block;
  margin-bottom: 28px;
  color: var(--violet);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.benefit-card h3 {
  margin-bottom: 9px;
  font-size: 20px;
}

.benefit-card p,
.steps-list p {
  margin-bottom: 0;
  color: #aebbd2;
  font-size: 13px;
  line-height: 1.65;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps-list li {
  min-height: 132px;
  align-items: flex-start;
  flex-direction: column;
  border-left: 2px solid rgb(143 255 199 / 45%);
  padding: 8px 0 8px 18px;
}

.steps-list li > span {
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.steps-list strong {
  margin-bottom: 6px;
  font-size: 15px;
}

.compatibility {
  border: 1px solid rgb(168 153 255 / 19%);
  border-radius: 16px;
  margin: 0 0 68px;
  padding: 20px 23px;
  background: rgb(168 153 255 / 4%);
  color: #b5c0d6;
  font-size: 12px;
  line-height: 1.65;
}

.compatibility > p {
  margin-bottom: 10px;
}

.compatibility strong {
  color: #d6ceff;
}

.compatibility details p {
  margin: 7px 0 0;
}

.compatibility summary {
  width: fit-content;
  color: #d6ceff;
  cursor: pointer;
}

.closing-cta {
  justify-content: space-between;
  gap: 28px;
  border: 1px solid rgb(143 255 199 / 20%);
  border-radius: 20px;
  margin-bottom: 20px;
  padding: clamp(24px, 5vw, 42px);
  background:
    radial-gradient(ellipse at 9% 0%, rgb(143 255 199 / 8%), transparent 48%),
    linear-gradient(120deg, rgb(18 31 39 / 95%), rgb(18 22 42 / 96%));
}

.closing-cta .eyebrow {
  margin-bottom: 10px;
}

.closing-cta p:last-child {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.button-primary {
  display: inline-flex;
  min-height: 48px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 0 18px;
  color: #07120e;
  background: var(--accent);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 150ms ease,
    background-color 150ms ease;
}

.button-primary:hover {
  transform: translateY(-2px);
  background: #b0ffdb;
}

.site-footer {
  min-height: 92px;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 12px;
}

.footer-copy {
  margin-bottom: 0;
}

.site-footer a:last-child {
  color: #dbe4f2;
  white-space: nowrap;
}

@media (width <= 860px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero-visual {
    width: min(100%, 680px);
    justify-self: center;
  }
}

@media (width <= 640px) {
  .page-shell {
    width: min(100% - 32px, 1160px);
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
    padding: 18px 0;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    font-size: 12px;
  }

  .site-nav .nav-download {
    padding: 8px 10px;
  }

  .hero {
    padding: 58px 0 66px;
  }

  .hero h1 {
    max-width: 10ch;
    font-size: clamp(42px, 12vw, 58px);
  }

  .download-actions,
  .benefit-grid,
  .steps-list {
    grid-template-columns: 1fr;
  }

  .download-actions {
    display: grid;
  }

  .benefits,
  .how-it-works {
    padding: 50px 0;
  }

  .benefit-grid,
  .steps-list {
    display: grid;
  }

  .benefit-number {
    margin-bottom: 18px;
  }

  .steps-list li {
    min-height: auto;
    padding-bottom: 15px;
  }

  .compatibility {
    margin-bottom: 48px;
    padding: 18px;
  }

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

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    padding: 23px 0;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}