:root {
  --ink: #151618;
  --muted: #5c616c;
  --faint: #6a707b;
  --line: #e7ebf0;
  --bg: #f9f9f9;
  --blue: #75d1fd;
  --surface: #fff;
  --frame: #efefef;
  --sans: Inter, system-ui, sans-serif;
  --col: 580px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid #0b6e8f; outline-offset: 3px; }
::selection { background: #c9f1ff; }

.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  height: 2px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: 0 0;
}

.cs {
  width: min(calc(var(--col) + 48px), calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0 80px;
}
.back {
  display: inline-block;
  margin-bottom: 48px;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
}
.back:hover { color: var(--ink); }

.title {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.45;
}
.dek {
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.55;
  text-wrap: pretty;
}
.meta {
  margin: -8px 0 28px;
  color: var(--muted);
  font-size: 13px;
}

.stage {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 8px;
  padding: 36px 16px;
  border-radius: 14px;
  background: var(--blue);
}
.stage img {
  width: min(230px, 58%);
  height: auto;
  filter: drop-shadow(0 16px 22px rgba(2, 6, 23, 0.22));
}

.body h2 {
  margin: 64px 0 12px;
  color: var(--muted);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: -0.01em;
  scroll-margin-top: 28px;
}
.body h3 {
  margin: 36px 0 8px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.35;
}
.body p { margin: 0 0 16px; text-wrap: pretty; }
.body ul, .body ol { margin: 8px 0 18px; padding-left: 22px; }
.body li { margin-bottom: 6px; }
.body li::marker { color: var(--faint); }
.led {
  background: var(--blue);
  color: var(--ink);
  border-radius: 2px;
  padding: 0 0.28em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.frame { margin: 22px 0 8px; }
.frame-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  width: min(100%, 520px);
  margin: 0 auto;
}
.frame figure { margin: 0; }
.frame img {
  width: 100%;
  border-radius: 18px;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.08);
  filter: drop-shadow(0 14px 18px rgba(2, 6, 23, 0.16));
}
.frame > img { border-radius: 10px; box-shadow: none; filter: none; }
.charts { display: grid; gap: 16px; }
.charts img { border-radius: 10px; box-shadow: none; filter: none; background: #fff; }
.shot { margin: 22px 0 8px; }
.shot img { width: 100%; border-radius: 10px; box-shadow: none; filter: none; }
.clip { margin: 22px 0 8px; }
.clip video {
  display: block;
  width: min(250px, 78%);
  height: auto;
  margin: 0 auto;
  border-radius: 18px;
  background: #111;
}
.frame figcaption, .cap {
  margin: 10px auto 0;
  max-width: var(--col);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.45;
  text-align: center;
}
.single { width: min(250px, 70%); margin: 0 auto; }

.steps {
  display: flex;
  gap: 8px;
  margin: 4px 0 14px;
}
.steps button {
  min-height: 36px;
  padding: 0 2px 6px;
  color: var(--muted);
  font-size: 13px;
  border-bottom: 2px solid transparent;
}
.steps button[aria-selected="true"] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin: 20px 0 28px;
  padding: 6px;
  border-radius: 14px;
  background: var(--frame);
}
.cmp { border-radius: 10px; padding: 16px 16px 12px; }
.cmp.chosen { background: var(--surface); box-shadow: 0 0 0 1px rgba(21, 22, 24, 0.08); }
.lab { margin: 0 0 6px; color: var(--muted); font-size: 12px; }
.chosen .lab { color: var(--ink); }
.tt { margin: 0 0 12px; font-size: 15px; font-weight: 500; line-height: 1.35; }
.cmp ul { margin: 0; padding: 0; list-style: none; font-size: 13.5px; line-height: 1.45; }
.cmp li { padding: 7px 0; border-top: 1px solid rgba(21, 22, 24, 0.08); }

.end {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 72px;
  font-size: 13px;
}
.home {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 80px;
  background: var(--ink);
  color: var(--bg);
  font-size: 12px;
  text-decoration: none;
}
.home:hover { background: #000; }
.credit { color: var(--muted); }

@media (min-width: 720px) {
  .cs { padding-top: 64px; }
  .compare { grid-template-columns: 1fr 1fr; }
  .stage img { width: 250px; }
}
@media (max-width: 520px) {
  .frame-row { grid-template-columns: 1fr; width: min(250px, 78%); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .progress { transition: none; }
}