/* ================= DotPulse public demo ================= */
:root{
  --bg:#12151a;
  --bg2:#171b21;
  --panel:#1c2129;
  --panel2:#212832;
  --line:#2b323d;
  --line2:#39424f;
  --tx:#e7ecf3;
  --tx2:#98a3b3;
  --tx3:#6c7787;
  --acc:#4da3ff;
  --lt2:#f2b134;   /* undersize  */
  --f24:#3ecf8e;   /* on-spec    */
  --gt4:#ef5b5b;   /* oversize   */
  --ok:#3ecf8e;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --r:10px;
  --maxw:1560px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--tx);
  font-family:"Open Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:15px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.01em}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
small{font-size:.62em;font-weight:600}

/* ---------------- header ---------------- */
.hdr{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;gap:20px;
  padding:12px 26px;
  background:rgba(18,21,26,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.hdr__brand{display:flex;align-items:baseline;gap:8px;font-weight:700;font-size:17px}
.hdr__logo{color:var(--tx);text-decoration:none}
.hdr__logo:hover{color:var(--acc);text-decoration:none}
.hdr__sep{color:var(--tx3);font-weight:400}
.hdr__prod{color:var(--acc);letter-spacing:.02em}
.hdr__mid{flex:1;color:var(--tx2);font-size:13.5px}
.hdr__right{display:flex;align-items:center;gap:14px}
.lang{display:flex;border:1px solid var(--line2);border-radius:7px;overflow:hidden}
.lang__btn{
  background:none;border:0;color:var(--tx2);
  font:600 12px/1 "Open Sans",sans-serif;padding:7px 11px;cursor:pointer;
}
.lang__btn.is-on{background:var(--acc);color:#0d1117}
.hdr__cta{
  border:1px solid var(--acc);color:var(--acc);
  padding:7px 15px;border-radius:7px;font-size:13px;font-weight:600;
  transition:background .15s,color .15s;
}
.hdr__cta:hover{background:var(--acc);color:#0d1117;text-decoration:none}

/* ---------------- intro ---------------- */
.intro{max-width:var(--maxw);margin:0 auto;padding:38px 26px 20px}
.intro__title{font-size:clamp(26px,3.2vw,40px);margin-bottom:12px}
.intro__lead{max-width:80ch;color:var(--tx2);font-size:16px;margin:0 0 24px}
.intro__facts{display:flex;flex-wrap:wrap;gap:12px}
.fact{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:12px 18px;min-width:170px;
}
.fact__v{display:block;font-family:var(--mono);font-size:22px;font-weight:600;color:var(--tx)}
.fact__k{display:block;font-size:12px;color:var(--tx3);margin-top:2px}

/* ---------------- control bar ---------------- */
.stage{max-width:var(--maxw);margin:0 auto;padding:0 26px 10px}
.bar{
  display:flex;align-items:center;gap:18px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r);padding:11px 16px;margin-bottom:14px;
}
.bar__live{display:flex;align-items:center;gap:8px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(62,207,142,.6);animation:pulse 2s infinite}
.dot.is-off{background:var(--tx3);animation:none;box-shadow:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(62,207,142,.55)}70%{box-shadow:0 0 0 9px rgba(62,207,142,0)}100%{box-shadow:0 0 0 0 rgba(62,207,142,0)}}
.bar__mode{font-size:11.5px;font-weight:700;letter-spacing:.09em;color:var(--ok)}
.bar__clock{font-family:var(--mono);font-size:15px;font-weight:600;white-space:nowrap;min-width:172px}
.bar__track{
  flex:1;height:8px;background:var(--bg2);border-radius:99px;position:relative;
  cursor:pointer;border:1px solid var(--line);
}
.bar__fill{position:absolute;inset:0 auto 0 0;width:0;background:linear-gradient(90deg,#2d6fb5,var(--acc));border-radius:99px}
.bar__knob{position:absolute;top:50%;left:0;width:14px;height:14px;margin:-7px 0 0 -7px;border-radius:50%;background:#fff;box-shadow:0 1px 5px rgba(0,0,0,.6);pointer-events:none}
.bar__ctrls{display:flex;align-items:center;gap:12px}
.btn{background:var(--panel2);border:1px solid var(--line2);color:var(--tx);border-radius:8px;cursor:pointer}
.btn--icon{width:38px;height:34px;display:grid;place-items:center;padding:0}
.btn--icon svg{width:17px;height:17px;fill:var(--tx)}
.btn--icon .ico-play{display:none}
.btn--icon.is-paused .ico-play{display:block}
.btn--icon.is-paused .ico-pause{display:none}
.btn:hover{border-color:var(--acc)}
.speed{display:flex;gap:4px}
.speed__b{
  background:var(--bg2);border:1px solid var(--line);color:var(--tx2);
  font:600 11.5px/1 var(--mono);padding:8px 9px;border-radius:6px;cursor:pointer;
}
.speed__b.is-on{background:var(--acc);border-color:var(--acc);color:#0d1117}

/* ---------------- grid ---------------- */
.grid{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(330px,1fr);gap:14px}
.col{display:flex;flex-direction:column;gap:14px;min-width:0}
.panel{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:14px 16px 12px;min-width:0;
}
.panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;flex-wrap:wrap}
.panel__title{font-size:14px;font-weight:600;color:var(--tx)}
.panel__note{margin:8px 0 0;font-size:11.5px;color:var(--tx3);line-height:1.5}
.chart{width:100%}
.chart--trend{height:320px}
.chart--hist{height:224px}
/* let the left column fill the height of the taller right column */
.col--main>.panel--chart:last-child{flex:1;display:flex;flex-direction:column}
.col--main>.panel--chart:last-child .chart--hist{flex:1;height:auto;min-height:224px}
.chart--scatter{height:340px}
.chart--daily{height:340px}

.panel__tools{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.chip{
  background:var(--bg2);border:1px solid var(--line);color:var(--tx2);
  font:600 11px/1 "Open Sans",sans-serif;padding:6px 10px;border-radius:6px;cursor:pointer;
}
.chip.is-on{background:var(--acc);border-color:var(--acc);color:#0d1117}
.legend{display:flex;gap:14px;flex-wrap:wrap}
.legend__i--static{cursor:default}
.swatch--lab{background:#ff5c5c;border-radius:50%}
.legend__i{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--tx2);cursor:pointer;user-select:none}
.legend__i.is-off{opacity:.38}
.swatch{width:10px;height:10px;border-radius:3px;display:inline-block;flex:none}
.swatch--lt2{background:var(--lt2)}
.swatch--f24{background:var(--f24)}
.swatch--gt4{background:var(--gt4)}

/* ---------------- camera ---------------- */
.tag{font-size:10.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 8px;border-radius:5px}
.tag--live{background:rgba(62,207,142,.13);color:var(--ok);border:1px solid rgba(62,207,142,.3)}
.tag--calib{background:rgba(77,163,255,.12);color:var(--acc);border:1px solid rgba(77,163,255,.28);text-transform:none;letter-spacing:0;font-weight:600}
.cam{position:relative;border-radius:8px;overflow:hidden;background:#0b0d10;aspect-ratio:5/4}
.cam__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;opacity:0;transition:opacity .18s linear}
.cam__img.is-on{opacity:1}
.cam__scan{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(77,163,255,0) 0%,rgba(77,163,255,.07) 48%,rgba(77,163,255,0) 100%);
  background-size:100% 44%;background-repeat:no-repeat;
  animation:scan 4.2s linear infinite;
}
@keyframes scan{0%{background-position:0 -46%}100%{background-position:0 146%}}
.cam__stamp{
  position:absolute;left:8px;bottom:8px;
  background:rgba(8,10,13,.78);border:1px solid rgba(255,255,255,.12);
  font-family:var(--mono);font-size:11.5px;padding:3px 8px;border-radius:5px;color:#dfe6ef;
}

/* ---------------- value cards ---------------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:11px 12px;text-align:center;
}
.card--target{border-color:rgba(62,207,142,.35);background:linear-gradient(180deg,rgba(62,207,142,.07),transparent)}
.card__k{display:flex;align-items:center;justify-content:center;gap:6px;font-size:11.5px;color:var(--tx2);white-space:nowrap}
.card__v{font-family:var(--mono);font-size:27px;font-weight:600;line-height:1.15;margin-top:3px;font-variant-numeric:tabular-nums}
.card__u{font-size:10px;color:var(--tx3)}

/* ---------------- process ---------------- */
.proc__row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-top:8px}
.proc__k{font-size:12px;color:var(--tx2)}
.proc__v{font-family:var(--mono);font-size:19px;font-weight:600;white-space:nowrap;font-variant-numeric:tabular-nums}
.proc__v i{font-style:normal;font-size:11px;color:var(--tx3);margin-left:5px}
.spark{height:44px;margin-top:2px}

/* ---------------- validation ---------------- */
.valid{max-width:var(--maxw);margin:0 auto;padding:44px 26px 10px}
.valid__head{margin-bottom:20px}
.valid__title{font-size:clamp(22px,2.5vw,31px);margin-bottom:8px}
.valid__lead{max-width:80ch;color:var(--tx2);margin:0}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}
.kpi{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.kpi--hero{border-color:rgba(62,207,142,.32);background:linear-gradient(180deg,rgba(62,207,142,.08),transparent)}
.kpi__v{font-family:var(--mono);font-size:32px;font-weight:600;line-height:1.1;font-variant-numeric:tabular-nums}
.kpi--hero .kpi__v{color:var(--ok)}
.kpi__k{font-size:12.5px;color:var(--tx2);margin-top:4px}
.kpi__sub{font-size:11.5px;color:var(--tx3);margin-top:2px}
.valid__src{
  margin:14px 0 20px;padding:11px 14px;font-size:12px;color:var(--tx3);
  border-left:2px solid var(--line2);background:var(--bg2);border-radius:0 8px 8px 0;max-width:110ch;
}
.valid__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(430px,1fr));gap:14px}
.tabs{display:flex;gap:4px}
.tabs__b{background:var(--bg2);border:1px solid var(--line);color:var(--tx2);font:600 11.5px/1 "Open Sans",sans-serif;padding:7px 11px;border-radius:6px;cursor:pointer}
.tabs__b.is-on{background:var(--acc);border-color:var(--acc);color:#0d1117}

/* ---------------- how ---------------- */
.how{max-width:var(--maxw);margin:0 auto;padding:44px 26px 20px}
.how__title{font-size:clamp(22px,2.5vw,31px);margin-bottom:20px}
.how__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.how__item{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.how__n{font-family:var(--mono);font-size:12px;color:var(--acc);font-weight:600;margin-bottom:8px}
.how__item h3{font-size:15px;margin-bottom:7px}
.how__item p{margin:0;font-size:13px;color:var(--tx2);line-height:1.6}
.cta{
  margin-top:22px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:linear-gradient(100deg,rgba(77,163,255,.12),rgba(62,207,142,.06));
  border:1px solid var(--line2);border-radius:var(--r);padding:22px 26px;
}
.cta__txt h3{font-size:19px;margin-bottom:4px}
.cta__txt p{margin:0;color:var(--tx2);font-size:14px}
.cta__btn{
  background:var(--acc);color:#0d1117;font-weight:700;font-size:14.5px;
  padding:13px 26px;border-radius:8px;white-space:nowrap;
}
.cta__btn:hover{text-decoration:none;filter:brightness(1.08)}

/* ---------------- footer ---------------- */
.ftr{max-width:var(--maxw);margin:0 auto;padding:30px 26px 46px;border-top:1px solid var(--line);margin-top:34px}
.ftr p{margin:0 0 6px;font-size:12px;color:var(--tx3);max-width:100ch}
.ftr__meta{font-family:var(--mono);font-size:11.5px}

/* ---------------- loader ---------------- */
.loader{
  position:fixed;inset:0;z-index:99;display:grid;place-content:center;justify-items:center;gap:14px;
  background:var(--bg);color:var(--tx2);font-size:13px;transition:opacity .4s;
}
.loader.is-gone{opacity:0;pointer-events:none}
.loader__b{width:190px;height:3px;background:var(--line);border-radius:99px;overflow:hidden;position:relative}
.loader__b::after{content:"";position:absolute;inset:0;width:40%;background:var(--acc);border-radius:99px;animation:slide 1.1s ease-in-out infinite}
@keyframes slide{0%{left:-40%}100%{left:100%}}

/* ---------------- responsive ---------------- */
@media (max-width:1180px){
  .grid{grid-template-columns:1fr}
  .chart--trend{height:280px}
}
@media (max-width:760px){
  .hdr{flex-wrap:wrap;gap:10px;padding:10px 16px}
  .hdr__mid{display:none}
  .intro,.stage,.valid,.how,.ftr{padding-left:16px;padding-right:16px}
  .bar{flex-wrap:wrap;gap:10px}
  .bar__clock{min-width:0;font-size:13px}
  .bar__track{order:9;flex-basis:100%}
  .valid__grid{grid-template-columns:1fr}
  .chart--scatter,.chart--daily{height:290px}
  .cards{grid-template-columns:1fr}
  .card{display:flex;align-items:center;justify-content:space-between;text-align:left}
  .card__v{font-size:22px;margin:0}
}