/* WristKey site — dark, faceted. Angular geometry on purpose: the product is. */
:root {
  --bg: #050507; --panel: #0d0d12; --ink: #f4f4f5; --muted: #9a9aa3;
  --accent: #3e6ae1; --line: #1e1e26;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 system-ui, sans-serif; }
main, header.topbar, footer { max-width: 980px; margin: 0 auto; padding: 0 24px; }
section { padding: 56px 0; border-bottom: 1px solid var(--line); }
h1 { font-size: clamp(44px, 8vw, 76px); line-height: 1.02; letter-spacing: -0.03em; margin: 8px 0 16px; }
h2 { font-size: 28px; letter-spacing: -0.01em; }
a { color: var(--accent); }
.topbar { display: flex; align-items: center; justify-content: space-between; padding-top: 20px; }
.wordmark { display: inline-flex; gap: 10px; align-items: center; color: var(--ink);
  text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: 0.01em; }
.wordmark svg { width: 26px; height: 23px; fill: none; stroke: var(--accent); stroke-width: 1.6; }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 14px; }
nav a:hover { color: var(--ink); }
.tagline { color: var(--muted); max-width: 56ch; font-size: 18px; }
.badges { margin-top: 20px; }
.badge { display: inline-block; border: 1px solid var(--line); border-radius: 2px;
  padding: 3px 10px; margin-right: 8px; color: var(--muted); font-size: 12.5px;
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px); }
.demo img { border: 1px solid var(--line); background: #000; border-radius: 4px; }
.demo figcaption { color: var(--muted); font-size: 13.5px; max-width: 60ch; margin-top: 10px; }
.grid { list-style: none; padding: 0; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid li { background: var(--panel); border: 1px solid var(--line); padding: 18px 20px; border-radius: 3px; }
.grid h3 { margin: 0 0 6px; font-size: 16.5px; }
.grid p { margin: 0; color: var(--muted); font-size: 14.5px; }
details { border: 1px solid var(--line); border-radius: 3px; padding: 12px 16px; margin-bottom: 10px; background: var(--panel); }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); }
footer { padding: 28px 24px 60px; color: var(--muted); font-size: 12.5px; }
.cta p, #pricing p { max-width: 70ch; }