:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --surface: #11171f;
  --surface-strong: #161f29;
  --line: #293441;
  --text: #f3f7fb;
  --muted: #9ba9b8;
  --lime: #b7f34a;
  --lime-dark: #1d2b0c;
  --blue: #73a9ff;
  --danger: #ffb176;
  --radius: 22px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% 7%, rgba(68, 116, 190, 0.16), transparent 30rem),
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 40px 40px, 40px 40px, auto;
  color: var(--text);
  font-family: "Segoe UI Variable", "Segoe UI", Pretendard, system-ui, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--lime);
  color: #10160a;
  font-weight: 700;
  transform: translateY(-160%);
}

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

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

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 12px;
  background: var(--lime);
  color: #10160a;
  font-size: 1.25rem;
  font-weight: 900;
  box-shadow: 0 0 36px rgba(183, 243, 74, 0.15);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.96rem;
  letter-spacing: 0.08em;
}

.brand small {
  margin-top: 1px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
}

nav {
  display: flex;
  gap: 26px;
}

nav a {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: 64px;
  align-items: end;
  min-height: 590px;
  padding: 92px 0 82px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--lime);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-size: clamp(3.35rem, 8vw, 6.8rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
}

.hero-description {
  max-width: 650px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  text-underline-offset: 6px;
}

.status-panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 23, 31, 0.82);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(14px);
}

.status-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.94rem;
  font-weight: 700;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 18px rgba(183, 243, 74, 0.75);
}

.status-panel.is-error .status-dot {
  background: var(--danger);
  box-shadow: 0 0 18px rgba(255, 177, 118, 0.55);
}

dl {
  margin: 0;
}

dl > div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

dt,
dd {
  margin: 0;
  font-size: 0.84rem;
}

dt {
  color: var(--muted);
}

dd {
  font-weight: 700;
}

.products-section,
.delivery-section {
  padding: 108px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 42px;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.05rem, 4.5vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.section-heading > p {
  max-width: 330px;
  margin-bottom: 4px;
  color: var(--muted);
}

.product-card {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
}

.product-index {
  padding: 30px 25px;
  border-right: 1px solid var(--line);
  color: var(--lime);
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.82rem;
}

.product-main {
  padding: clamp(30px, 5vw, 58px);
}

.product-title-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
}

.product-kicker {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

h3 {
  margin-bottom: 22px;
  font-size: clamp(2rem, 5vw, 4.3rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.release-badge {
  padding: 7px 11px;
  border: 1px solid rgba(183, 243, 74, 0.32);
  border-radius: 999px;
  background: var(--lime-dark);
  color: var(--lime);
  font-size: 0.66rem;
  font-weight: 850;
  letter-spacing: 0.11em;
}

.product-description {
  max-width: 760px;
  color: #c3ced9;
  font-size: 1.02rem;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0;
  padding: 0;
  list-style: none;
}

.feature-list li,
.release-meta span {
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
  color: #bac6d2;
  font-size: 0.78rem;
}

.feature-list li {
  padding: 8px 12px;
}

.release-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 32px 0 18px;
}

.release-meta span {
  padding: 6px 10px;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 13px 18px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
  pointer-events: none;
}

.button:focus-visible,
.copy-button:focus-visible,
nav a:focus-visible,
.brand:focus-visible,
.text-link:focus-visible {
  outline: 3px solid rgba(115, 169, 255, 0.72);
  outline-offset: 3px;
}

.button-primary {
  background: var(--lime);
  color: #0d1407;
}

.button-primary:hover {
  background: #c6ff5b;
}

.button-secondary {
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
}

.button-secondary:hover {
  border-color: #526274;
}

.integrity-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(2, 6, 10, 0.34);
}

.integrity-row + .integrity-row {
  margin-top: 10px;
}

.integrity-row span,
.integrity-row code {
  display: block;
}

.integrity-row span {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.72rem;
}

.integrity-row code {
  overflow-wrap: anywhere;
  color: #dbe8f4;
  font-size: 0.8rem;
}

.copy-button {
  flex: 0 0 auto;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 0.76rem;
  font-weight: 700;
}

.copy-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.release-note {
  margin: 18px 2px 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.delivery-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 0.58fr);
  gap: 70px;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.steps li:first-child {
  padding-top: 0;
}

.steps > li > span {
  color: var(--lime);
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.78rem;
}

.steps strong {
  display: block;
  margin-bottom: 7px;
}

.steps p,
.auto-start-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.auto-start-note {
  grid-column: 2;
  margin-top: -40px;
  padding: 16px 18px;
  border-left: 3px solid var(--blue);
  background: rgba(115, 169, 255, 0.08);
}

footer {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding: 40px 0 54px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted);
  font-size: 0.78rem;
}

footer strong,
footer span {
  display: block;
}

footer strong {
  margin-bottom: 3px;
  color: var(--text);
  letter-spacing: 0.08em;
}

footer p {
  margin: 0;
}

@media (max-width: 820px) {
  .hero,
  .delivery-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    gap: 54px;
    padding: 78px 0 70px;
  }

  .delivery-section {
    gap: 42px;
  }

  .auto-start-note {
    grid-column: 1;
    margin-top: 0;
  }
}

@media (max-width: 600px) {
  .site-header,
  main,
  footer {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .site-header {
    min-height: 76px;
  }

  .brand small,
  nav a:last-child {
    display: none;
  }

  nav {
    gap: 14px;
  }

  h1 {
    font-size: clamp(3rem, 15.5vw, 4.8rem);
  }

  .products-section,
  .delivery-section {
    padding: 76px 0;
  }

  .section-heading {
    display: block;
  }

  .section-heading > p {
    margin-top: 16px;
  }

  .product-card {
    grid-template-columns: 1fr;
  }

  .product-index {
    padding: 16px 22px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .product-title-row {
    display: block;
  }

  .release-badge {
    display: inline-block;
    margin-bottom: 24px;
  }

  .button {
    width: 100%;
  }

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

  footer {
    align-items: start;
    flex-direction: column;
  }
}

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

  .button {
    transition: none;
  }
}