:root {
  --bg: #ffffff;
  --bg-subtle: #f6f6f8;
  --card: #ffffff;
  --border: #e2e2e6;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --accent: #007aff;
  --accent-dark: #0063d6;
  --code-bg: #f0f0f3;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e10;
    --bg-subtle: #151517;
    --card: #1a1a1d;
    --border: #2c2c30;
    --text: #f2f2f3;
    --text-secondary: #9a9aa0;
    --accent: #2b8bff;
    --accent-dark: #57a3ff;
    --code-bg: #232326;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.35);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px;
}

/* header */
header.site {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  z-index: 10;
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
}
.brand img { width: 26px; height: 26px; border-radius: 7px; }
.brand:hover { text-decoration: none; }

nav.main { display: flex; gap: 22px; font-size: 14.5px; }
nav.main a { color: var(--text-secondary); font-weight: 500; }
nav.main a:hover { color: var(--text); text-decoration: none; }
nav.main a.active { color: var(--text); }

/* hero */
.hero {
  text-align: center;
  padding: 76px 24px 56px;
}
.hero img.icon {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 26px;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 46px);
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}
.hero p.tagline {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 34px;
}

.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: var(--bg-subtle); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--code-bg); }

.hero .subnote {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* screenshot */
.screenshot {
  max-width: 720px;
  margin: 0 auto 80px;
  padding: 0 24px;
}
.screenshot img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: block;
}

/* sections */
section.block { padding: 8px 24px 64px; }
section.block h2 {
  font-size: 26px;
  text-align: center;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
section.block p.lede {
  text-align: center;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  max-width: 900px;
  margin: 0 auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
}
.card h3 {
  margin: 0 0 8px;
  font-size: 16px;
}
.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14.5px;
}
.card .emoji { font-size: 24px; display: block; margin-bottom: 10px; }

/* how-it-works diagram box */
.diagram {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 26px;
  max-width: 640px;
  margin: 0 auto 20px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--text-secondary);
  white-space: pre;
  overflow-x: auto;
}

code, .inline-code {
  background: var(--code-bg);
  border-radius: 5px;
  padding: 2px 6px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

pre {
  background: var(--code-bg);
  border-radius: 10px;
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13.5px;
  max-width: 640px;
  margin: 0 auto 20px;
}
pre code { background: none; padding: 0; }

/* downloads page */
.page-header {
  padding: 56px 24px 8px;
  text-align: center;
}
.page-header h1 { font-size: 32px; margin: 0 0 10px; letter-spacing: -0.02em; }
.page-header p { color: var(--text-secondary); max-width: 520px; margin: 0 auto; }

.releases {
  max-width: 720px;
  margin: 40px auto 80px;
  padding: 0 24px;
}

.release {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  margin-bottom: 16px;
  background: var(--card);
}
.release-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.release-head h3 { margin: 0; font-size: 17px; }
.release-date { color: var(--text-secondary); font-size: 13px; }
.badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  margin-left: 8px;
  vertical-align: middle;
}
.assets { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.asset-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-subtle);
  border-radius: 10px;
  font-size: 14px;
}
.asset-row .name { font-weight: 600; }
.asset-row .meta { color: var(--text-secondary); font-size: 12.5px; }
.asset-row a.dl { font-weight: 600; }

.state-msg {
  text-align: center;
  color: var(--text-secondary);
  padding: 40px 0;
}

/* footer */
footer.site {
  border-top: 1px solid var(--border);
  padding: 28px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
}
footer.site a { color: var(--text-secondary); }
footer.site a:hover { color: var(--text); }