:root {
  color-scheme: light;
  --bg: #f7f4ee;
  --bg-soft: #fffaf1;
  --surface: #fffdf8;
  --surface-strong: #ffffff;
  --ink: #18201f;
  --muted: #5f6a66;
  --muted-strong: #404a46;
  --line: rgba(24, 32, 31, 0.14);
  --line-strong: rgba(24, 32, 31, 0.24);
  --accent: #0f7c73;
  --accent-strong: #0a5d56;
  --accent-soft: #d8f1ec;
  --warm: #c97939;
  --warm-soft: #f4dfc9;
  --shadow: 0 24px 70px rgba(28, 42, 40, 0.12);
  --radius-lg: 32px;
  --radius-md: 20px;
  --radius-sm: 12px;
  --wrap: 1120px;
  --font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #101514;
    --bg-soft: #151d1b;
    --surface: #17201e;
    --surface-strong: #1d2926;
    --ink: #f4f0e8;
    --muted: #b6c0ba;
    --muted-strong: #d3ddd7;
    --line: rgba(244, 240, 232, 0.14);
    --line-strong: rgba(244, 240, 232, 0.24);
    --accent: #72d7c9;
    --accent-strong: #a2f0e5;
    --accent-soft: rgba(114, 215, 201, 0.15);
    --warm: #f0b879;
    --warm-soft: rgba(240, 184, 121, 0.15);
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, var(--accent-soft), transparent 36rem),
    radial-gradient(circle at 85% 8rem, var(--warm-soft), transparent 30rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img,
svg {
  max-width: 100%;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--warm);
  outline-offset: 4px;
}

p,
ul,
ol {
  margin-top: 0;
}

ul,
ol {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.4rem;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-150%);
  border-radius: 999px;
  background: var(--ink);
  color: var(--bg);
  padding: 0.7rem 1rem;
  text-decoration: none;
}

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

.wrap {
  width: min(100% - 2rem, var(--wrap));
  margin-inline: auto;
}

.narrow-wrap {
  width: min(100% - 2rem, 820px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(18px);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 760;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.3rem;
}

.site-nav a {
  border-radius: 999px;
  color: var(--muted-strong);
  font-size: 0.93rem;
  font-weight: 650;
  padding: 0.62rem 0.82rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.site-nav .nav-cta {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  padding: 0.62rem 0.86rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(300px, 0.74fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(4.5rem, 9vw, 8rem) 0 clamp(3.25rem, 6vw, 5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 2.3rem;
  height: 2px;
  background: currentColor;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  line-height: 1.04;
  letter-spacing: -0.055em;
}

h1 {
  max-width: 12ch;
  font-size: clamp(3.25rem, 8vw, 6.8rem);
}

h2 {
  font-size: clamp(2rem, 5vw, 4.4rem);
}

h3 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.lede {
  max-width: 62ch;
  margin: 1.35rem 0 0;
  color: var(--muted-strong);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-actions,
.link-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.hero-actions {
  margin-top: 2rem;
}

.section {
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: clamp(2rem, 5vw, 3.6rem);
}

.section-heading p {
  max-width: 62ch;
  margin: 1rem 0 0;
  color: var(--muted-strong);
  font-size: 1.08rem;
}

.featured-app {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(130deg, color-mix(in srgb, var(--surface-strong) 92%, var(--accent-soft)), var(--surface)),
    var(--surface);
  box-shadow: var(--shadow);
}

.featured-app::after {
  content: "";
  position: absolute;
  right: -9rem;
  top: -10rem;
  width: 24rem;
  height: 24rem;
  border-radius: 999px;
  background: var(--accent-soft);
}

.featured-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.65fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding: clamp(1.4rem, 4vw, 3rem);
}

.app-identity {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.65rem;
}

.app-identity img,
.app-icon-large {
  width: 82px;
  height: 82px;
  border-radius: 23px;
  box-shadow: 0 18px 34px rgba(15, 124, 115, 0.18);
}

.app-identity span {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.publisher-note {
  align-self: end;
  border-left: 2px solid var(--accent);
  padding-left: 1.25rem;
}

.publisher-note p {
  margin-bottom: 1rem;
  color: var(--muted-strong);
}

.publisher-note strong {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-hero {
  padding: clamp(3.5rem, 7vw, 6rem) 0 2.5rem;
}

.page-hero h1 {
  max-width: 13ch;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
}

.page-hero .lede {
  max-width: 68ch;
}

.article {
  padding: 2rem 0 clamp(4rem, 8vw, 6rem);
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.article-content {
  max-width: 790px;
}

.article-content h2 {
  margin-top: 2.8rem;
  margin-bottom: 0.9rem;
  font-size: clamp(1.6rem, 3vw, 2.35rem);
}

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

.article-content h3 {
  margin-top: 1.7rem;
  margin-bottom: 0.5rem;
  font-size: 1.28rem;
}

.article-content p,
.article-content li {
  color: var(--muted-strong);
}

.article-content a {
  font-weight: 700;
}

.meta-list {
  display: grid;
  gap: 0.55rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.meta-list li {
  margin: 0;
  color: var(--muted-strong);
}

.side-note {
  position: sticky;
  top: 98px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 1rem;
}

.side-note h2,
.side-note h3 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.side-note p,
.side-note li {
  color: var(--muted);
  font-size: 0.93rem;
}

.side-note ul {
  margin-bottom: 0;
}

.notice {
  border: 1px solid color-mix(in srgb, var(--warm) 42%, var(--line));
  border-radius: var(--radius-md);
  background: var(--warm-soft);
  padding: 1rem 1.1rem;
}

.notice strong {
  display: block;
  margin-bottom: 0.35rem;
}

.info-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: clamp(1rem, 3vw, 1.5rem);
}

.app-detail-header {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 1.2rem;
  align-items: center;
  margin-top: 1.6rem;
}

.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-list details {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}

.faq-list summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 780;
}

.faq-list details p {
  margin: 0.8rem 0 0;
}

.button-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 780;
  min-height: 44px;
  padding: 0.72rem 1rem;
  text-decoration: none;
}

.button-link {
  background: var(--accent-strong);
  color: var(--bg);
}

.button-link:hover {
  color: var(--bg);
  background: var(--accent);
}

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

.site-footer {
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 76%, transparent);
  padding: 2rem 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: start;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.9rem;
  font-weight: 780;
  letter-spacing: -0.03em;
}

.footer-brand img {
  width: 30px;
  height: 30px;
}

.footer-inner p {
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem 1rem;
  max-width: 520px;
}

.footer-links a {
  color: var(--muted-strong);
  font-size: 0.94rem;
  font-weight: 700;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent-strong);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

@media (max-width: 900px) {
  .hero,
  .featured-inner,
  .article-shell {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .side-note {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    min-height: auto;
    padding-block: 0.9rem;
  }

  .js .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.2rem;
    padding-top: 0.6rem;
  }

  .js .site-nav {
    display: none;
  }

  .js .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.55rem 0.72rem;
  }

  h1,
  .page-hero h1 {
    max-width: 11ch;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 460px) {
  .wrap,
  .narrow-wrap {
    width: min(100% - 1.25rem, var(--wrap));
  }

  .hero {
    gap: 2.2rem;
  }

  .hero-actions,
  .link-row {
    align-items: stretch;
    flex-direction: column;
  }

  .button-link,
  .secondary-link {
    width: 100%;
  }

  .featured-app,
  .info-panel,
  .notice {
    border-radius: 22px;
  }

  .app-detail-header {
    grid-template-columns: 1fr;
  }
}