:root {
  --blue: #0000aa;
  --blue-deep: #00006e;
  --cyan: #55ffff;
  --cyan-dim: #00aaaa;
  --teal: #4fa9a9;
  --yellow: #ffff55;
  --white: #ffffff;
  --grey: #aaaaaa;
  --black: #000000;
  --green: #55ff55;
  --mono: "SF Mono", Menlo, Monaco, "Cascadia Mono", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--blue-deep);
  color: var(--white);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); }
img { max-width: 100%; height: auto; display: block; }
.mono { font-family: var(--mono); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* Menu bar, styled like the app's */
.menubar {
  position: sticky; top: 0; z-index: 10;
  background: var(--teal); color: var(--black);
  font: 15px/1 var(--mono);
}
.menubar .wrap { display: flex; align-items: center; gap: 4px; height: 40px; }
.menubar a {
  color: var(--black); text-decoration: none; padding: 8px 12px; white-space: nowrap;
}
.menubar a:hover, .menubar a:focus-visible { background: var(--black); color: var(--white); outline: none; }
.menubar .brand { font-weight: 700; display: flex; align-items: center; gap: 8px; padding-left: 0; }
.menubar .brand img { width: 22px; height: 22px; }
.menubar .spacer { flex: 1; }
.menubar .clock { padding: 0 4px; }

/* Hero */
.hero { background: var(--blue); padding: 64px 0 56px; text-align: center; border-bottom: 3px double var(--cyan); }
.hero .icon { width: 128px; height: 128px; margin: 0 auto 12px; }
.hero h1 { font: 700 clamp(40px, 7vw, 64px)/1.05 var(--mono); margin: 0 0 12px; color: var(--yellow); letter-spacing: -0.02em; }
.hero .tagline { font-size: clamp(18px, 2.4vw, 22px); color: var(--white); margin: 0 auto 8px; max-width: 680px; }
.hero .sub { color: var(--cyan); font: 14px/1.6 var(--mono); margin: 0 0 28px; }
.buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  font: 600 16px/1 var(--mono); text-decoration: none; padding: 14px 22px;
  border: 2px solid var(--cyan); color: var(--cyan); background: transparent;
}
.btn.primary { background: var(--cyan); color: var(--black); }
.btn:hover, .btn:focus-visible { background: var(--yellow); border-color: var(--yellow); color: var(--black); outline: none; }
.shot {
  margin: 44px auto 0; width: 100%; max-width: min(1040px, 100%);
  border: 3px double var(--cyan); background: var(--black);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

/* Sections */
section { padding: 72px 0; }
section + section { border-top: 1px solid rgba(85, 255, 255, 0.18); }
h2 {
  font: 700 clamp(26px, 4vw, 34px)/1.2 var(--mono); color: var(--yellow);
  margin: 0 0 8px;
}
.lead { color: var(--grey); margin: 0 0 32px; max-width: 720px; }

/* Feature panels: double-line frames like the app */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 24px 20px; }
.panel {
  position: relative; min-width: 0; background: var(--blue); border: 3px double var(--cyan);
  padding: 26px 20px 20px;
}
.panel h3 {
  position: absolute; top: -13px; left: 14px; margin: 0; padding: 0 8px;
  background: var(--teal); color: var(--black); font: 700 14px/1.6 var(--mono);
}
.panel p { margin: 0; color: #e8e8ff; font-size: 15px; }
.panel kbd, .keys kbd {
  font: 13px/1 var(--mono); color: var(--yellow); background: rgba(0, 0, 0, 0.35);
  padding: 2px 5px; border: 1px solid rgba(255, 255, 85, 0.35);
}

/* Gallery */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.tabs button {
  font: 14px/1 var(--mono); padding: 10px 14px; cursor: pointer;
  background: transparent; color: var(--cyan); border: 1px solid var(--cyan-dim);
}
.tabs button[aria-selected="true"] { background: var(--cyan); color: var(--black); border-color: var(--cyan); }
.tabs button:hover { border-color: var(--yellow); }
.gallery figure { margin: 0; }
.gallery figure[hidden] { display: none; }
.gallery img { border: 3px double var(--cyan); background: var(--black); cursor: zoom-in; width: 100%; }
.gallery figcaption { margin-top: 12px; color: var(--grey); font-size: 15px; }

.themes { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: 18px; }
.themes figure { margin: 0; }
.themes img { border: 2px solid rgba(85, 255, 255, 0.4); cursor: zoom-in; }
.themes figcaption { font: 14px/1.4 var(--mono); color: var(--cyan); margin-top: 8px; }

/* Keys table */
.keys { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 6px 28px; font-size: 15px; }
.keys div { display: flex; gap: 12px; padding: 6px 0; border-bottom: 1px dotted rgba(85, 255, 255, 0.2); }
.keys kbd { min-width: 92px; text-align: center; flex: none; }

/* Download */
.download { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 24px; }
pre {
  margin: 12px 0 0; padding: 16px; overflow-x: auto; background: var(--black); color: var(--white);
  font: 14px/1.6 var(--mono); border: 1px solid rgba(85, 255, 255, 0.3);
}
pre .c { color: var(--grey); }
.note { color: var(--grey); font-size: 14px; margin-top: 12px; }
.panel .btn { display: inline-block; margin-top: 16px; }

/* Footer: an F-key bar */
footer { background: var(--black); padding: 36px 0 0; color: var(--grey); font-size: 14px; }
footer p { margin: 0 0 10px; max-width: 820px; }
footer .disclaimer { color: #d8d8d8; }
.fkeys {
  display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 28px;
  font: 15px/1 var(--mono);
}
.fkeys a { display: flex; text-decoration: none; color: var(--black); background: var(--teal); }
.fkeys a span { background: var(--black); color: var(--white); padding: 10px 4px 10px 8px; }
.fkeys a b { font-weight: 400; padding: 10px 8px; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fkeys a:hover b, .fkeys a:focus-visible b { background: var(--yellow); }

/* Lightbox */
dialog { padding: 0; border: 3px double var(--cyan); background: var(--black); max-width: 96vw; max-height: 94vh; }
dialog::backdrop { background: rgba(0, 0, 40, 0.85); }
dialog img { max-width: 94vw; max-height: 90vh; width: auto; cursor: zoom-out; }

@media (max-width: 720px) {
  .menubar .opt { display: none; }
  .menubar .clock { display: none; }
  .hero { padding: 44px 0 40px; }
  .hero .icon { width: 96px; height: 96px; }
  section { padding: 52px 0; }
  .fkeys { grid-template-columns: repeat(3, 1fr); }
  .wrap { padding: 0 16px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Release notes */
.notes h1 { font: 700 clamp(32px, 6vw, 48px)/1.1 var(--mono); color: var(--yellow); margin: 0 0 8px; }
.release { margin-top: 36px; }
.release h2 { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.release h2 .date { font: 400 15px/1 var(--mono); color: var(--cyan); }
.release h2 .tag { font: 700 12px/1 var(--mono); background: var(--cyan); color: var(--black); padding: 4px 6px; }
.release h3 { font: 700 15px/1.4 var(--mono); color: var(--cyan); margin: 18px 0 6px; }
.release ul { margin: 0; padding-left: 22px; }
.release li { margin: 6px 0; color: #e8e8ff; }
.release li kbd { font: 13px/1 var(--mono); color: var(--yellow); background: rgba(0, 0, 0, 0.35); padding: 2px 5px; border: 1px solid rgba(255, 255, 85, 0.35); }
.release .links { margin-top: 14px; font-size: 15px; }

/* Version tag inside download buttons */
.btn .ver { font-weight: 400; opacity: 0.75; margin-left: 4px; }

/* Manual */
.manual { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 40px; padding-top: 40px; padding-bottom: 64px; }
.toc { position: sticky; top: 56px; align-self: start; max-height: calc(100vh - 72px); overflow-y: auto; }
.toc summary { font: 700 14px/1 var(--mono); color: var(--black); background: var(--teal); padding: 8px 10px; cursor: pointer; list-style: none; }
.toc summary::-webkit-details-marker { display: none; }
.toc ol { margin: 0; padding: 10px 0 10px 38px; border: 1px solid rgba(85, 255, 255, 0.3); border-top: 0; font: 14px/1.4 var(--mono); }
.toc li { margin: 6px 0; color: var(--cyan-dim); }
.toc a { text-decoration: none; }
.toc a:hover { color: var(--yellow); }
.doc h1 { font: 700 clamp(32px, 6vw, 48px)/1.1 var(--mono); color: var(--yellow); margin: 0 0 8px; }
.doc section { padding: 40px 0 0; border: 0; scroll-margin-top: 48px; }
.doc h2 { border-bottom: 3px double var(--cyan); padding-bottom: 6px; margin-bottom: 16px; }
.doc h3 { font: 700 17px/1.4 var(--mono); color: var(--cyan); margin: 28px 0 8px; scroll-margin-top: 48px; }
.doc p, .doc li { color: #e8e8ff; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc code { font: 14px var(--mono); color: var(--yellow); }
.doc kbd { font: 13px/1 var(--mono); color: var(--yellow); background: rgba(0, 0, 0, 0.35); padding: 2px 5px; border: 1px solid rgba(255, 255, 85, 0.35); white-space: nowrap; }
.doc figure { margin: 18px 0 22px; }
.doc figure img { width: 100%; border: 3px double var(--cyan); background: var(--black); cursor: zoom-in; }
.doc figcaption { color: var(--grey); font-size: 14px; margin-top: 8px; }
.doc .pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); gap: 16px; }
.doc .pair figure { margin: 8px 0; }
.doc .themes figure { margin: 0; }
.doc .themes img { border-width: 2px; }
.keytable { width: 100%; border-collapse: collapse; margin: 12px 0 18px; font-size: 15px; }
.keytable th { text-align: left; font: 700 13px/1.4 var(--mono); color: var(--black); background: var(--teal); padding: 6px 10px; }
.keytable td { padding: 7px 10px; border-bottom: 1px dotted rgba(85, 255, 255, 0.25); vertical-align: top; color: #e8e8ff; }
.keytable td:first-child { white-space: nowrap; width: 1%; }
.note-box { border-left: 4px solid var(--yellow); background: rgba(0, 0, 0, 0.25); padding: 10px 14px; }
@media (max-width: 900px) {
  .manual { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 16px; }
  .toc { position: sticky; top: 40px; z-index: 5; max-height: 70vh; background: var(--blue-deep); }
  .keytable td:first-child { white-space: normal; width: 40%; }
}

.more { margin: 28px 0 0; }
@media (max-width: 600px) {
  .keytable:not(.grid) tr { display: block; padding: 8px 0; border-bottom: 1px dotted rgba(85, 255, 255, 0.25); }
  .keytable:not(.grid) td { display: block; border: 0; padding: 2px 0; width: auto !important; }
  .keytable:not(.grid) td:first-child { white-space: normal; }
  .keytable.grid { font-size: 13px; }
  .keytable.grid td, .keytable.grid th { padding: 6px 5px; }
}
.toc a[aria-current] { color: var(--black); background: var(--cyan); padding: 1px 4px; margin-left: -4px; }
.toc li:has(a[aria-current])::marker { color: var(--cyan); }

.menubar a[aria-current] { background: var(--black); color: var(--white); }

/* Featured theme (Frost) above the theme grid */
.theme-feature { margin: 0 0 22px; }
.theme-feature img { border: 3px double var(--cyan); cursor: zoom-in; width: 100%; }
.theme-feature figcaption { font: 15px/1.4 var(--mono); color: var(--cyan); margin-top: 8px; }
.new { font: 700 11px/1 var(--mono); background: var(--yellow); color: var(--black); padding: 3px 5px; vertical-align: 2px; }