:root {
  --black: #050505;
  --ink: #111111;
  --line: #2a2a2a;
  --mute: #8c8c8c;
  --paper: #f4f4f2;
  --white: #ffffff;
  --signal: #e5231b;
  --pad: 20px;
}

@font-face {
  font-family: "Bricolage Grotesque";
  src: url("fonts/bricolage.woff2") format("woff2");
  font-weight: 200 800;
  font-display: swap;
}

* { box-sizing: border-box; }

html { background: var(--black); color: var(--white); }

body {
  margin: 0;
  font-family: "Bricolage Grotesque", system-ui, sans-serif;
  font-size: 17px;
  line-height: 26px;
  -webkit-font-smoothing: antialiased;
}

.top {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px var(--pad) 0;
}

.brand {
  font-weight: 800;
  font-size: 30px;
  line-height: 32px;
  letter-spacing: -0.03em;
  color: var(--white);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 1px;
}

.lens {
  width: 0.53em;
  height: 0.53em;
  border-radius: 50%;
  background: var(--signal);
  display: inline-block;
  margin: 0 0.03em;
}

.views { display: flex; gap: 28px; }

.views button {
  font: inherit;
  font-size: 14px;
  line-height: 20px;
  color: var(--mute);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 0 0 8px;
  cursor: pointer;
}

.views button.on { color: var(--white); border-bottom-color: var(--signal); }
.views button:focus-visible, .solid:focus-visible, .quiet:focus-visible, input:focus-visible { outline: 2px solid var(--white); outline-offset: 3px; }

main { padding: 24px var(--pad) 48px; }

.view { display: none; flex-direction: column; gap: 24px; max-width: 1248px; }
.view.on { display: flex; }

.feed { margin: 0; background: #000; position: relative; }
.feed img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; background: #000; }
.feed figcaption { font-size: 13px; line-height: 20px; color: var(--mute); padding-top: 8px; min-height: 28px; }

h1 { font-weight: 800; font-size: 26px; line-height: 30px; letter-spacing: -0.01em; margin: 0 0 10px; }
h2 { font-weight: 600; font-size: 21px; line-height: 28px; margin: 16px 0 0; }

.lede { color: var(--mute); margin: 0; max-width: 640px; }

.facts { display: flex; flex-direction: column; gap: 6px; margin: 0; font-size: 15px; line-height: 22px; font-variant-numeric: tabular-nums; }
.facts div { display: flex; gap: 16px; }
.facts dt { width: 150px; color: var(--mute); }
.facts dd { margin: 0; }

.solid, .quiet { font: inherit; font-size: 15px; line-height: 20px; cursor: pointer; border: 0; display: inline-flex; align-items: center; gap: 10px; }
.solid { background: var(--white); color: var(--black); padding: 12px 20px; align-self: flex-start; }
.quiet { background: none; color: var(--mute); padding: 12px 0; text-decoration: underline; text-underline-offset: 4px; }

.rows { display: flex; flex-direction: column; }
.rows .row { border-top: 1px solid var(--line); padding: 20px 0; display: flex; flex-direction: column; gap: 4px; }
.rows .number { font-weight: 800; font-size: 44px; line-height: 48px; letter-spacing: -0.02em; }
.rows .what { font-weight: 600; }
.rows .conditions { color: var(--mute); font-size: 14px; line-height: 20px; }

.steps, .plainlist { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 12px; max-width: 720px; }
.plainlist { color: var(--mute); }

.sim { display: flex; flex-direction: column; gap: 16px; }
.sim figure { margin: 0; flex: 1; }
.sim img { width: 100%; height: auto; display: block; background: #000; aspect-ratio: 16 / 9; }
.shot { margin: 0; max-width: 820px; }
.shot.narrow { max-width: 420px; }
.shot img { width: 100%; height: auto; display: block; }
.shot figcaption { font-size: 14px; line-height: 20px; color: var(--mute); padding-top: 8px; }
.arrow { width: 18px; height: 18px; fill: currentColor; flex: none; }
.sim figcaption { font-size: 14px; line-height: 20px; padding-top: 8px; display: flex; justify-content: space-between; }
.plain { color: var(--mute); font-size: 13px; }

.switches { display: flex; flex-direction: column; gap: 10px; }
.switches label { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.switches input { width: 20px; height: 20px; accent-color: var(--signal); margin: 0; }

dialog {
  background: var(--ink);
  color: var(--white);
  border: 1px solid var(--line);
  padding: 28px 24px;
  max-width: min(520px, calc(100vw - 32px));
}
dialog::backdrop { background: rgba(0, 0, 0, 0.72); }
dialog h2 { margin: 0 0 12px; font-weight: 800; font-size: 24px; line-height: 28px; }
dialog p { color: var(--mute); margin: 0 0 20px; }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; }

#tour {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  background: var(--ink);
  border: 1px solid var(--line);
  padding: 20px;
  z-index: 5;
  max-width: 520px;
}
#tour p { margin: 0 0 16px; }

.spot { outline: 2px solid var(--signal); outline-offset: 6px; }

@media (min-width: 900px) {
  :root { --pad: 96px; }
  .top { flex-direction: row; justify-content: space-between; align-items: center; padding-top: 40px; }
  .brand { font-size: 36px; line-height: 38px; }
  main { padding-top: 40px; padding-bottom: 96px; }
  .view { gap: 36px; }
  h1 { font-size: 40px; line-height: 44px; letter-spacing: -0.02em; }
  .facts { flex-direction: row; gap: 48px; }
  .facts dt { width: auto; }
  .sim { flex-direction: row; }
  .switches { flex-direction: row; gap: 32px; }
  #tour { left: auto; right: 32px; bottom: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; }
}