/* Q-popper site. Brand: icon gradient purple → red. */
:root {
  --bg: #fbfaf9; --fg: #1d1d1f; --muted: #6e6e73; --line: #e8e6e3; --card: #ffffff;
  --brand-a: #6b3f91; --brand-b: #c81b36; --accent: #8a2f6f;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141315; --fg: #f2f2f4; --muted: #a1a1a6; --line: #2c2a2e; --card: #1c1b1e; --accent: #d77bb8; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 var(--font); }
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 max(20px, env(safe-area-inset-left)); }
header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); text-decoration: none; font-weight: 600; }
.brand img { width: 30px; height: 30px; }
nav { display: flex; gap: 18px; font-size: 15px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current] { color: var(--fg); }
main { padding-block: 48px 64px; }
h1 { font-size: clamp(32px, 6vw, 48px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 12px; text-wrap: balance; }
h2 { font-size: 22px; margin: 40px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { color: var(--fg); }
.lead { font-size: 20px; color: var(--muted); margin: 0 0 28px; max-width: 34em; }
.hero { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.hero img.icon { width: 112px; height: 112px; }
.gradient { background: linear-gradient(135deg, var(--brand-a), var(--brand-b)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.button { display: inline-block; padding: 12px 22px; border-radius: 12px; background: linear-gradient(135deg, var(--brand-a), var(--brand-b)); color: #fff; text-decoration: none; font-weight: 600; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 40px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.feature h3 { margin-top: 0; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }
kbd { font: 14px var(--font); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 0 5px; background: var(--card); }
.meta { color: var(--muted); font-size: 14px; }
footer { border-top: 1px solid var(--line); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 20px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }