/* QDStar website: dark, like the app's reflector screen */
:root {
  --bg: #0d0f12;
  --panel: #16191e;
  --line: #2a2f37;
  --text: #e6e2d8;
  --dim: #a8a295;
  --green: #4ade80;
  --amber: #f0a830;
  --cyan: #56c8f0;
  --radius: 12px;
  --mono: "DejaVu Sans Mono", "Cascadia Mono", Consolas, ui-monospace, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", "DejaVu Sans", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--sans);
}

a { color: var(--cyan); }
a:hover { color: #8fdcf7; }

img { max-width: 100%; height: auto; display: block; }

code, kbd {
  font-family: var(--mono);
  font-size: .9em;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: .05em .35em;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* --- header ------------------------------------------------------------ */

header.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(13, 15, 18, .92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

header.top .wrap {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 58px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font: 700 20px var(--mono);
  margin-right: auto;
}
.brand img { width: 30px; height: 30px; }

header.top nav { display: flex; gap: 18px; align-items: center; }
header.top nav a { color: var(--dim); text-decoration: none; font-size: 15px; }
header.top nav a:hover, header.top nav a.here { color: var(--text); }
header.top nav a.lang {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 8px;
  font-family: var(--mono);
}

/* --- hero -------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 56px 0 40px;
}

.leds { display: flex; gap: 9px; margin-bottom: 18px; }
.leds span {
  width: 13px; height: 13px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #b6ffd0, var(--green) 55%, #15803d);
  box-shadow: 0 0 8px rgba(74, 222, 128, .6);
}
.leds span.off { background: radial-gradient(circle at 35% 35%, #666, #333 60%, #1c1c1c); box-shadow: none; }

.hero h1 {
  font: 700 clamp(34px, 6vw, 54px)/1.1 var(--mono);
  margin: 0 0 14px;
  color: var(--amber);
}
.hero h1 small { display: block; font-size: .42em; color: var(--cyan); margin-top: 8px; }
.hero p.lead { font-size: 19px; color: var(--text); margin: 0 0 24px; }

.buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 9px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--panel);
}
.btn.primary { background: var(--green); border-color: var(--green); color: #06260f; }
.btn.primary:hover { background: #6ee79a; color: #06260f; }
.btn:hover { border-color: var(--dim); color: var(--text); }
.version { color: var(--dim); font-size: 14px; margin-top: 12px; font-family: var(--mono); }

.photos { display: flex; gap: 16px; justify-content: center; }
.photos img {
  width: calc(50% - 8px);
  max-width: 260px;
  border-radius: var(--radius);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .55);
}
.photos img:nth-child(2) { margin-top: 48px; }

/* --- sections ---------------------------------------------------------- */

section { padding: 40px 0; border-top: 1px solid var(--line); }
section h2 { font: 700 28px var(--mono); margin: 0 0 20px; color: var(--text); }
section h2::before { content: "▍"; color: var(--green); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 16px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.card h3 { margin: 0 0 6px; font-size: 18px; color: var(--amber); }
.card p { margin: 0; color: var(--dim); }

.shots { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
figure { margin: 0; }
figure img { border-radius: 8px; border: 1px solid var(--line); background: #fff; }
figcaption { color: var(--dim); font-size: 14px; margin-top: 6px; }

table.dl { width: 100%; border-collapse: collapse; }
table.dl th, table.dl td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.dl th { color: var(--dim); font-weight: 600; font-size: 14px; }

/* --- manual ------------------------------------------------------------ */

.manual { display: grid; grid-template-columns: 240px 1fr; gap: 40px; padding: 40px 0; }
.toc { position: sticky; top: 78px; align-self: start; font-size: 15px; }
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li { counter-increment: toc; margin: 0 0 6px; }
.toc a { color: var(--dim); text-decoration: none; }
.toc a::before { content: counter(toc) ". "; color: var(--green); font-family: var(--mono); }
.toc a:hover { color: var(--text); }

.doc h1 { font: 700 36px var(--mono); color: var(--amber); margin: 0 0 8px; }
.doc > p.lead { color: var(--dim); margin-top: 0; }
.doc h2 { font: 700 24px var(--mono); margin: 44px 0 12px; padding-top: 8px; border-top: 1px solid var(--line); scroll-margin-top: 70px; }
.doc h3 { font-size: 19px; color: var(--cyan); margin: 26px 0 8px; }
.doc li { margin-bottom: 4px; }
.doc figure { margin: 18px 0; max-width: 520px; }
.doc table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 16px; }
.doc th, .doc td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--panel); }
.note {
  border-left: 4px solid var(--amber);
  background: var(--panel);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
}
.led-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 4px; vertical-align: 0; }
.led-dot.g { background: var(--green); }
.led-dot.a { background: var(--amber); }
.led-dot.r { background: #ef4444; }
.led-dot.o { background: #444; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--dim); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

/* --- phones ------------------------------------------------------------ */

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding-top: 32px; }
  .manual { grid-template-columns: 1fr; }
  .toc { position: static; }
  header.top nav a:not(.lang):not(.keep) { display: none; }
}

/* --- enlarged images ---------------------------------------------------- */

img.zoomable { cursor: zoom-in; }

.zoom {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, .9);
  cursor: zoom-out;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.zoom.open { display: flex; }
.zoom img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, .7);
}
body.zoomed { overflow: hidden; }

/* --- downloads ---------------------------------------------------------- */

.systems { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin: 20px 0; }
.system .sub { color: var(--dim); font-size: 14px; margin: 0 0 12px; }
.system .file { border-top: 1px solid var(--line); padding: 10px 0 4px; }
.system .file > code { color: var(--cyan); }
.system .file p { margin: 6px 0 0; font-size: 15px; color: var(--text); }
.tag {
  display: inline-block;
  margin-left: 6px;
  padding: 0 7px;
  border-radius: 999px;
  background: var(--green);
  color: #06260f;
  font-size: 12px;
  font-weight: 700;
  vertical-align: 1px;
}

/* long commands and file names wrap instead of widening the page */
code { overflow-wrap: anywhere; }
.doc { min-width: 0; }
@media (max-width: 820px) { .doc table { display: block; overflow-x: auto; } }

.author { color: var(--text); font-size: 15px; margin: 6px 0 0; }
.note.new { margin: 0 0 32px; }