/* 3D-TVision site. Same palette as the app: its dark background and cyan accent. */
:root {
  --bg: #0d1117;
  --panel: #151b24;
  --line: #243041;
  --text: #e6edf3;
  --dim: #9aa7b3;
  --accent: #4dc7eb;
  --warn: #e8b64c;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 "Segoe UI", system-ui, -apple-system, sans-serif;
}

a { color: var(--accent); }
a:hover { color: #fff; }

.wrap { max-width: 780px; margin: 0 auto; padding: 0 16px; }

header.site {
  border-bottom: 1px solid var(--line);
  background: rgba(13, 17, 23, 0.92);
  position: sticky;
  top: 0;
  z-index: 1;
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 56px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.brand img { width: 28px; height: 28px; }
nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--dim); text-decoration: none; font-size: 15px; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }

main { padding: 40px 0 56px; }

h1 { font-size: 34px; line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: 22px; margin: 40px 0 10px; color: var(--accent); }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: var(--text); }
.lead { font-size: 19px; color: var(--dim); margin: 0 0 24px; }
.dim { color: var(--dim); }
.note { color: var(--dim); font-size: 14px; }

.hero { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.hero img { width: 112px; height: 112px; }
.hero > div { flex: 1 1 320px; }

.button {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.button.disabled { border-color: var(--line); color: var(--dim); cursor: default; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 16px 0;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
}
.card h3 { margin: 0 0 4px; font-size: 16px; }
.card p { margin: 0; color: var(--dim); font-size: 15px; }

ol.steps li { margin: 6px 0; }
kbd {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 5px;
  font-size: 14px;
}

.effects {
  columns: 3 180px;
  column-gap: 24px;
  padding-left: 18px;
  margin: 12px 0;
}
.effects li { break-inside: avoid; }
.native { color: var(--warn); font-size: 13px; }

footer.site {
  border-top: 1px solid var(--line);
  padding: 20px 0 32px;
  color: var(--dim);
  font-size: 14px;
}
footer.site a { color: var(--dim); }

/* 3D Effects page: one card per effect. */
.effect {
  display: grid;
  grid-template-columns: minmax(0, 320px) 1fr;
  gap: 18px;
  align-items: start;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  margin: 14px 0;
}
.effect img { width: 100%; height: auto; border-radius: 8px; display: block; }
.effect h3 { margin: 2px 0 6px; font-size: 19px; }
.effect p { margin: 0 0 10px; }
.effect .variants { color: var(--dim); font-size: 14px; }
.badge {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  vertical-align: middle;
}
@media (max-width: 620px) {
  .effect { grid-template-columns: 1fr; }
}