/* ElecSys CAD — documentation site. Dark theme echoing the app's chrome. */

:root {
  --bg:        #0e0e12;
  --bg-2:      #16161b;
  --panel:     #1c1c22;
  --panel-2:   #24242b;
  --border:    #33333c;
  --border-2:  #44444f;
  --text:      #e9e9ec;
  --dim:       #a6a6b0;
  --accent:    #2a9df4;   /* app AccentBlue */
  --green:     #21c521;   /* app SheetGreen */
  --amber:     #ffc800;   /* keys / snap markers */
  --sans: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --mono: "Cascadia Code", "Consolas", "SFMono-Regular", Menlo, monospace;
  --sidebar-w: 268px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---- Language toggle visibility ---- */
body.lang-sv [data-lang="en"] { display: none; }
body.lang-en [data-lang="sv"] { display: none; }

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 16px;
  height: 56px; padding: 0 20px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.site-header .brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 17px; color: var(--text); text-decoration: none;
}
.site-header .brand .logo {
  width: 22px; height: 22px; border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), #14508a);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 13px; font-weight: 700;
}
.site-header .brand small { color: var(--dim); font-weight: 400; font-size: 13px; }
.site-header .spacer { flex: 1; }

.lang-toggle { display: inline-flex; border: 1px solid var(--border-2); border-radius: 6px; overflow: hidden; }
.lang-toggle button {
  background: transparent; color: var(--dim); border: 0; cursor: pointer;
  font: 500 13px var(--sans); padding: 5px 12px;
}
.lang-toggle button.active { background: var(--accent); color: #fff; }

.menu-btn {
  display: none; background: transparent; border: 1px solid var(--border-2);
  color: var(--text); border-radius: 6px; padding: 5px 10px; cursor: pointer; font-size: 18px;
}

/* ---- Layout ---- */
.layout { display: flex; align-items: flex-start; }

.sidebar {
  position: sticky; top: 56px;
  width: var(--sidebar-w); flex: 0 0 var(--sidebar-w);
  height: calc(100vh - 56px); overflow-y: auto;
  background: var(--bg-2); border-right: 1px solid var(--border);
  padding: 18px 0 40px;
}
.sidebar h4 {
  margin: 18px 20px 6px; font-size: 11px; letter-spacing: .09em;
  text-transform: uppercase; color: var(--dim); font-weight: 600;
}
.sidebar a {
  display: block; padding: 7px 20px; color: var(--text); text-decoration: none;
  font-size: 14.5px; border-left: 3px solid transparent;
}
.sidebar a:hover { background: var(--panel); }
.sidebar a.active { border-left-color: var(--accent); background: var(--panel); color: #fff; font-weight: 600; }

.content { flex: 1 1 auto; min-width: 0; padding: 34px 48px 90px; max-width: 900px; }

/* ---- Typography ---- */
h1 { font-size: 30px; margin: 0 0 6px; line-height: 1.2; }
h2 {
  font-size: 22px; margin: 42px 0 12px; padding-bottom: 6px;
  border-bottom: 1px solid var(--border); scroll-margin-top: 70px;
}
h3 { font-size: 17.5px; margin: 26px 0 8px; color: #fff; scroll-margin-top: 70px; }
p { margin: 10px 0; }
.lead { font-size: 18px; color: var(--dim); margin-bottom: 22px; }
a { color: var(--accent); }
ul, ol { padding-left: 22px; }
li { margin: 5px 0; }
strong { color: #fff; }
hr { border: 0; border-top: 1px solid var(--border); margin: 34px 0; }

/* ---- Code, keys ---- */
code {
  font-family: var(--mono); font-size: .9em;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 6px; color: #ffe9a8;
}
kbd {
  font-family: var(--sans); font-size: 12.5px; line-height: 1;
  background: #2b2b33; border: 1px solid var(--border-2); border-bottom-width: 2px;
  border-radius: 5px; padding: 3px 7px; color: #fff; white-space: nowrap;
}
pre {
  background: #07070a; border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 16px; overflow-x: auto; margin: 14px 0;
}
pre code { background: none; border: 0; padding: 0; color: var(--green); font-size: 13.5px; }

/* ---- Figures / screenshots ---- */
figure { margin: 20px 0; }
figure img {
  width: 100%; height: auto; display: block;
  border: 1px solid var(--border); border-radius: 8px; background: #000;
}
figure.narrow { max-width: 480px; }
figcaption { margin-top: 8px; font-size: 13.5px; color: var(--dim); }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; margin: 16px 0; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--dim); font-weight: 600; border-bottom-color: var(--border-2); }
tr:hover td { background: var(--bg-2); }
td code, th code { white-space: nowrap; }

/* ---- Callouts ---- */
.note, .tip, .warn {
  border: 1px solid var(--border); border-left-width: 4px;
  border-radius: 6px; padding: 12px 16px; margin: 18px 0; background: var(--panel);
  font-size: 14.5px;
}
.note   { border-left-color: var(--accent); }
.tip    { border-left-color: var(--green); }
.warn   { border-left-color: var(--amber); }
.note strong.tag, .tip strong.tag, .warn strong.tag { display: block; margin-bottom: 3px; }
.note strong.tag { color: var(--accent); }
.tip strong.tag  { color: var(--green); }
.warn strong.tag { color: var(--amber); }
/* the display:block above ties the language-hide rule on specificity and would win by
   source order, leaving both language tags visible — re-hide the inactive one explicitly */
body.lang-sv strong.tag[data-lang="en"],
body.lang-en strong.tag[data-lang="sv"] { display: none; }

/* ---- Feature cards (index) ---- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 22px 0; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 18px; text-decoration: none; color: var(--text); display: block;
}
.card:hover { border-color: var(--accent); background: var(--panel-2); }
.card .ic { font-size: 22px; }
.card h3 { margin: 6px 0 4px; font-size: 16px; }
.card p { margin: 0; font-size: 13.5px; color: var(--dim); }

/* ---- Download button (install CTA) ---- */
.download { margin: 20px 0 8px; }
.download-btn {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 13px 22px; border-radius: 10px; text-decoration: none;
  background: linear-gradient(135deg, #23cc23, #159a15);
  color: #08140a; border: 1px solid #2ee02e;
  box-shadow: 0 2px 14px rgba(33,197,33,.22);
  transition: transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.download-btn:hover { filter: brightness(1.06); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(33,197,33,.34); }
.download-btn:active { transform: translateY(0); }
.download-btn .dl-ic { font-size: 24px; line-height: 1; }
.download-btn .dl-text { display: flex; flex-direction: column; line-height: 1.25; }
.download-btn .dl-text strong { color: #08140a; font-size: 16px; font-weight: 700; }
.download-btn .dl-text small { color: #0c2a10; font-size: 12px; font-weight: 600; opacity: .82; }

/* pill / key glyph used inline for tool letters */
.glyph { font-family: var(--mono); color: var(--amber); }

/* page nav (prev/next) */
.page-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 48px; border-top: 1px solid var(--border); padding-top: 20px; }
.page-nav a { color: var(--text); text-decoration: none; font-size: 14.5px; }
.page-nav a span { color: var(--dim); font-size: 12px; display: block; }
.page-nav a:hover { color: var(--accent); }

footer.site-footer { color: var(--dim); font-size: 13px; margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--border); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .menu-btn { display: inline-block; }
  .sidebar {
    position: fixed; left: 0; top: 56px; z-index: 25;
    transform: translateX(-100%); transition: transform .2s ease;
    box-shadow: 4px 0 20px rgba(0,0,0,.5);
  }
  .sidebar.open { transform: translateX(0); }
  .content { padding: 24px 20px 70px; }
}