:root {
  color-scheme: light dark;
  --background: #f4f7f3;
  --surface: #ffffff;
  --surface-soft: #e9f3ec;
  --text: #18231b;
  --muted: #526159;
  --brand: #176b43;
  --brand-strong: #0c5533;
  --border: #d9e2db;
  --shadow: 0 12px 34px rgba(28, 58, 39, 0.08);
  --content: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--brand);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--brand-strong);
}

a:focus-visible {
  outline: 3px solid #51a977;
  outline-offset: 3px;
  border-radius: 0.2rem;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: 0.65rem;
  background: var(--text);
  color: var(--surface);
  transform: translateY(-180%);
}

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

.site-header,
.site-footer,
.page-shell {
  width: min(100% - 2rem, var(--content));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.15rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.15rem;
  height: 2.15rem;
  place-items: center;
  border-radius: 0.7rem;
  background: var(--surface-soft);
  color: var(--brand);
  font-size: 1.2rem;
}

.brand-icon {
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 0.7rem;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.3rem 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--brand);
}

.page-shell {
  padding-block: clamp(2rem, 7vw, 5rem);
}

.hero {
  padding: clamp(2rem, 7vw, 4.25rem);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  background: linear-gradient(145deg, var(--surface), var(--surface-soft));
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--brand);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.35rem, 9vw, 4.7rem);
}

.legal h1 {
  font-size: clamp(2.15rem, 8vw, 3.7rem);
}

h2 {
  margin: 2.6rem 0 0.8rem;
  font-size: clamp(1.35rem, 4vw, 1.75rem);
}

h3 {
  margin: 1.5rem 0 0.45rem;
  font-size: 1.08rem;
}

p,
ul,
ol {
  margin-block: 0.7rem;
}

li + li {
  margin-top: 0.45rem;
}

.lede {
  max-width: 60ch;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 3vw, 1.28rem);
}

.app-page {
  width: min(100% - 2rem, 980px);
}

.app-hero {
  display: grid;
  gap: clamp(1.5rem, 5vw, 3rem);
  align-items: center;
  padding: clamp(1.5rem, 7vw, 4.25rem);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  background: linear-gradient(145deg, var(--surface), var(--surface-soft));
  box-shadow: var(--shadow);
}

.app-icon {
  width: clamp(7rem, 28vw, 10rem);
  height: auto;
  border-radius: 22%;
  box-shadow: 0 14px 28px rgba(28, 58, 39, 0.14);
}

.product-descriptor {
  margin: -0.45rem 0 0.75rem;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 700;
}

.app-store-status {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  margin-top: 1.25rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  background: var(--surface);
  color: var(--brand-strong);
  font-weight: 750;
}

.feature-section {
  padding-block: clamp(2rem, 6vw, 4rem) 0;
}

.feature-section h2 {
  margin-top: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}

.feature-grid article {
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
}

.feature-grid h3 {
  margin-top: 0;
}

.feature-grid p {
  color: var(--muted);
}

.meta {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.link-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  margin-top: 1.75rem;
}

.link-card {
  display: block;
  min-height: 44px;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.link-card span {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 450;
}

.legal,
.support-content {
  padding: clamp(1.3rem, 5vw, 3rem);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.notice {
  margin-block: 1.5rem;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--brand);
  border-radius: 0.5rem;
  background: var(--surface-soft);
}

.contact-card {
  margin-top: 1.5rem;
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  background: var(--surface-soft);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem 1.4rem;
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

@media (min-width: 680px) {
  .app-hero {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

@media (min-width: 640px) {
  .link-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 520px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav ul {
    justify-content: flex-start;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0e1410;
    --surface: #161f19;
    --surface-soft: #1c3024;
    --text: #edf4ef;
    --muted: #b5c2b9;
    --brand: #81d7a7;
    --brand-strong: #a3e6c0;
    --border: #2c3c31;
    --shadow: 0 12px 34px rgba(0, 0, 0, 0.2);
  }
}

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