:root {
  color-scheme: light dark;
  --accent: #0f88a8;
  --accent-strong: #0b6f8c;
  --text: #1d1d1f;
  --secondary: #6e6e73;
  --background: #ffffff;
  --grouped: #f5f5f7;
  --card: #ffffff;
  --separator: rgba(0, 0, 0, 0.1);
  --radius: 22px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #30aac6;
    --accent-strong: #5cc3db;
    --text: #f5f5f7;
    --secondary: #a1a1a6;
    --background: #000000;
    --grouped: #111113;
    --card: #1c1c1e;
    --separator: rgba(255, 255, 255, 0.14);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  color: var(--text);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in srgb, var(--background) 80%, transparent);
  border-bottom: 1px solid var(--separator);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 19px;
}
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.site-header nav { display: flex; gap: 22px; font-size: 14px; }
.site-header nav a { color: var(--secondary); }
.site-header nav a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero { text-align: center; padding-top: 72px; padding-bottom: 40px; }
.hero .icon {
  width: 128px;
  height: 128px;
  border-radius: 29px;
  box-shadow: 0 12px 32px rgba(15, 136, 168, 0.28);
}
.hero h1 {
  font-size: clamp(40px, 7vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 28px 0 14px;
}
.hero p.lede {
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.35;
  color: var(--secondary);
  max-width: 640px;
  margin: 0 auto 28px;
}
.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.cta:hover { text-decoration: none; background: var(--accent-strong); }
.cta.soon { background: var(--grouped); color: var(--secondary); cursor: default; }
.fine { font-size: 14px; color: var(--secondary); margin-top: 14px; }

/* Screenshots: a grid that always fits, so there's nothing to scroll. */
.shots {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  max-width: 1040px;
  margin: 0 auto;
  padding: 24px 24px 72px;
}
.shot {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1320 / 2868;
  border-radius: 13% / 6%;
  border: 1px solid var(--separator);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
  object-fit: cover;
  background: var(--grouped);
}

/* Features */
.features { background: var(--grouped); padding: 80px 0; }
.features h2, .privacy-callout h2 {
  font-size: clamp(30px, 4.5vw, 44px);
  letter-spacing: -0.015em;
  line-height: 1.1;
  text-align: center;
  margin: 0 0 48px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 20px;
}
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
}
.card .symbol {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  margin-bottom: 16px;
}
.card .symbol svg { width: 24px; height: 24px; }
.card h3 { margin: 0 0 6px; font-size: 21px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--secondary); }

/* Privacy callout */
.privacy-callout { padding-top: 88px; padding-bottom: 88px; text-align: center; }
.privacy-callout p {
  font-size: 21px;
  color: var(--secondary);
  max-width: 680px;
  margin: 0 auto 18px;
}

/* Documents (privacy, terms, support) */
.doc { padding-top: 56px; padding-bottom: 80px; }
.doc h1 { font-size: 40px; letter-spacing: -0.02em; line-height: 1.1; margin: 0 0 8px; }
.doc .updated { color: var(--secondary); margin: 0 0 36px; }
.doc h2 { font-size: 24px; letter-spacing: -0.01em; margin: 40px 0 10px; }
.doc h3 { font-size: 19px; margin: 28px 0 6px; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.summary {
  background: var(--grouped);
  border-radius: var(--radius);
  padding: 22px 26px;
  margin: 0 0 12px;
}
.summary ul { margin: 8px 0 0; }
details {
  background: var(--grouped);
  border-radius: 16px;
  padding: 16px 20px;
  margin: 10px 0;
}
details summary { font-weight: 600; cursor: pointer; }
details p:last-child, details ul:last-child { margin-bottom: 0; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--separator);
  padding: 28px 0 40px;
  font-size: 13px;
  color: var(--secondary);
}
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.site-footer a { color: var(--secondary); }

@media (max-width: 600px) {
  .site-header nav { gap: 16px; }
  .site-header nav .optional { display: none; }
  .shots { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
}