:root {
  color-scheme: light;
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --text: #1a1c1e;
  --accent: #4a90d9;
  --accent-hi: #2d6cb5;
  --muted: #5c6268;
  --pad-x: clamp(1rem, 4vw, 1.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #121416;
    --surface: #1c1f23;
    --border: #3a3f45;
    --text: #e8eaed;
    --accent: #6ba8e8;
    --accent-hi: #8fc0f0;
    --muted: #9aa0a6;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.page {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, sans-serif;
  font-size: clamp(0.95rem, 2.8vw, 1.05rem);
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

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

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

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.85rem var(--pad-x);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.brand {
  font-weight: 600;
  font-size: clamp(1rem, 3.5vw, 1.15rem);
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.75rem;
}

.site-nav a,
.site-nav .nav-current {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.35rem 0.65rem;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border-radius: 8px;
}

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

.site-nav a:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent-hi);
}

.site-nav .nav-current {
  color: var(--text);
  cursor: default;
}

.beta-strip {
  margin: 0;
  padding: 0.65rem var(--pad-x);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-hi);
  background: color-mix(in srgb, var(--accent) 10%, var(--bg));
  border-bottom: 1px solid var(--border);
}

.site-main {
  max-width: 44rem;
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 2rem) var(--pad-x) 2.5rem;
}

.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
  margin-bottom: 2rem;
}

.hero-icon-wrap {
  flex-shrink: 0;
  padding: 0;
  background: #ffffff;
  border-radius: 22%;
  border: 1px solid var(--border);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  overflow: hidden;
  line-height: 0;
}

.hero-icon {
  display: block;
  width: clamp(72px, 22vw, 96px);
  height: clamp(72px, 22vw, 96px);
  object-fit: cover;
}

.hero-text h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.35rem, 5vw, 1.75rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text);
  letter-spacing: -0.02em;
}

.hero-text .tagline {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.panel {
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.panel h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1rem, 3vw, 1.15rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.panel ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

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

.panel-lead {
  margin-top: 0;
  color: var(--muted);
}

.cta-row {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
}

@media (min-width: 480px) {
  .cta-row {
    justify-content: flex-start;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.65rem 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  color: #ffffff;
  background: var(--accent);
}

.btn-primary:hover {
  filter: brightness(1.08);
  color: #ffffff;
}

.badge-stack {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

@media (min-width: 640px) {
  .badge-stack {
    justify-content: flex-start;
  }
}

.store-badge {
  display: block;
  text-align: center;
}

@media (min-width: 640px) {
  .store-badge {
    text-align: left;
  }
}

.store-badge img {
  display: block;
  width: auto;
  height: 56px;
  max-width: 100%;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .store-badge img {
    margin: 0;
  }
}

.store-note {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

@media (min-width: 640px) {
  .store-note {
    text-align: left;
  }
}

.store-wrap {
  flex: 0 0 auto;
}

.site-footer {
  margin-top: 2rem;
  padding: 1.25rem var(--pad-x);
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

.site-footer a {
  font-weight: 600;
}

.footer-copy {
  margin: 0.55rem 0 0;
}

.prose {
  color: var(--muted);
}

.prose h1 {
  margin: 0 0 0.25rem;
  font-size: clamp(1.35rem, 4vw, 1.5rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}

.prose .meta {
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.prose h2 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.prose p {
  margin: 0.65rem 0;
}

.prose ul {
  padding-left: 1.25rem;
}

.prose footer {
  margin-top: 2.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

@media (max-width: 480px) {
  .site-nav {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav a,
  .site-nav .nav-current {
    width: 100%;
    justify-content: flex-start;
  }
}