:root {
  color-scheme: light dark;
  --fg: #1d1d1f; --bg: #ffffff; --muted: #6e6e73; --line: #e5e5ea;
  --card: #f5f5f7; --accent: #2f5ae6; --accent-2: #1cb4c8; --ok: #34c759;
}
@media (prefers-color-scheme: dark) {
  :root { --fg: #f5f5f7; --bg: #0f0f12; --muted: #98989d; --line: #2c2c2e; --card: #1c1c1e; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
@media (prefers-color-scheme: dark) { a { color: #7fa3ff; } }
img { max-width: 100%; height: auto; }
.wrap { max-width: 900px; margin: 0 auto; padding: 0 20px; }

header.site { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 0; }
header.site .brand { display: flex; align-items: center; gap: 10px; font-weight: 600; text-decoration: none; color: var(--fg); }
header.site .brand img { width: 32px; height: 32px; border-radius: 8px; }
header.site nav { display: flex; gap: 18px; font-size: .95rem; }
header.site nav a { text-decoration: none; color: var(--muted); }
header.site nav a[aria-current] { color: var(--fg); font-weight: 600; }

.hero { text-align: center; padding: 40px 0 24px; }
.hero img.logo { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 12px 30px rgba(47, 90, 230, .25); }
.hero h1 { font-size: clamp(2rem, 6vw, 3rem); margin: 20px 0 8px; letter-spacing: -.02em; }
.hero p.lead { font-size: 1.25rem; color: var(--muted); max-width: 560px; margin: 0 auto 24px; }
.cta { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: #fff; text-decoration: none; padding: 12px 22px; border-radius: 999px; font-weight: 600; }
.cta.secondary { background: var(--card); color: var(--fg); }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.small { font-size: .9rem; color: var(--muted); }

.media { background: var(--card); border-radius: 18px; overflow: hidden; aspect-ratio: 16 / 9; display: grid; place-items: center; margin: 32px auto; max-width: 820px; }
.media video, .media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.media.phone { aspect-ratio: 9 / 19.5; max-width: 300px; }

/* Column counts are set by hand so a row never ends with a lone card: four cards go 2 by 2, three go in one row. */
.grid { display: grid; gap: 16px; grid-template-columns: 1fr; margin: 32px 0; }
@media (min-width: 560px) { .grid:not(.three) { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 700px) { .grid.three { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--card); border-radius: 16px; padding: 20px; }
.card h3 { margin: 8px 0 6px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: .98rem; }
.card .ic { font-size: 1.6rem; }

h2 { font-size: 1.6rem; margin: 48px 0 16px; letter-spacing: -.01em; }
h3 { font-size: 1.15rem; }

/* Illustrated steps */
.steps { counter-reset: step; display: grid; gap: 20px; }
.step { display: grid; grid-template-columns: 1fr; gap: 14px; background: var(--card); border-radius: 16px; padding: 18px; }
@media (min-width: 700px) {
  .step { grid-template-columns: 1fr 340px; align-items: center; gap: 24px; }
  .step:has(.shot.wide) { grid-template-columns: 1fr; }
  .step:has(.shot[hidden]) { grid-template-columns: 1fr; }
}
.step .num { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; margin-bottom: 8px; }
.step p { margin: 6px 0 0; }
/* Pictures are cropped to the part that matters by docs/design/build-screenshots.py, so each keeps its own shape. */
.shot { background: var(--bg); border-radius: 14px; overflow: hidden; display: grid; place-items: center; text-align: center; color: var(--muted); font-size: .85rem; width: 100%; max-width: 420px; margin: 0 auto; box-shadow: 0 0 0 1px var(--line), 0 6px 18px rgba(0, 0, 0, .08); }
.shot.wide { max-width: 100%; }
.shot img { display: block; width: 100%; height: auto; }
.shot.missing { aspect-ratio: 4 / 3; padding: 12px; }
.shot .placeholder { display: none; }
.shot.missing img { display: none; }
.shot.missing .placeholder { display: block; }

.platform-tabs { display: flex; gap: 8px; margin: 12px 0 20px; }
.platform-tabs button { font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--fg); padding: 8px 16px; border-radius: 999px; cursor: pointer; }
.platform-tabs button[aria-selected="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }
[hidden] { display: none !important; }

.notice { display: flex; gap: 12px; align-items: flex-start; background: var(--card); border-left: 4px solid var(--accent); border-radius: 12px; padding: 14px 16px; margin: 16px 0 20px; }
.notice .ic { font-size: 1.3rem; line-height: 1.4; }
.notice p { margin: 0; }

.safety { scroll-margin-top: 16px; }
.safety > h3 { margin: 28px 0 10px; }
.safety .grid { margin: 0; }
.compare { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin: 20px 0 0; }
.compare > div { background: var(--card); border-radius: 16px; padding: 18px 20px; }
.compare h3 { margin: 0 0 10px; font-size: 1.05rem; }
.compare ul { list-style: none; margin: 0; padding: 0; }
.compare li { position: relative; padding-left: 26px; margin-top: 8px; font-size: .98rem; }
.compare li::before { position: absolute; left: 0; font-weight: 700; }
.yes li::before { content: "✓"; color: #1f9d45; }
.no li::before { content: "✕"; color: var(--muted); }

details { border-top: 1px solid var(--line); padding: 14px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
summary::after { content: "+"; color: var(--muted); }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin: 10px 0 0; }

.maker { display: flex; align-items: center; gap: 24px; background: var(--card); border-radius: 16px; padding: 20px 24px; margin: 40px 0 0; }
.maker img { flex: none; width: 160px; height: auto; }
.maker h2 { margin: 0 0 6px; }
.maker p { margin: 0; }
.maker.done { margin: 20px 0; padding: 14px 20px; gap: 16px; }
.maker.done img { width: 72px; }
@media (max-width: 480px) { .maker:not(.done) { flex-direction: column; text-align: center; } }

.badges { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin: 24px 0; color: var(--muted); font-size: .95rem; }
.badges span { display: inline-flex; align-items: center; gap: 6px; }
footer.site { margin: 64px 0 40px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; background: var(--card); padding: 1px 5px; border-radius: 5px; }
.prose p, .prose li { color: var(--fg); }