/* GPS Camera Snap — FieldSignal landing page.
   A precision field-instrument identity: committed dark theme, monospace data/labels,
   crosshair reticles, coordinate readouts, faint topographic contours.
   Static: no build step, no frameworks. */

/* Both faces self-hosted — the whole page is request-free (no CDN, no external calls),
   in keeping with the app's privacy-first stance. IBM Plex Sans for prose; IBM Plex Mono
   for the data/label treatment. */
@font-face {
  font-family: "IBM Plex Sans";
  src: url("assets/fonts/ibm-plex-sans.ttf") format("truetype");
  font-weight: 100 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/ibm-plex-mono-regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/ibm-plex-mono-medium.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/ibm-plex-mono-semibold.ttf") format("truetype");
  font-weight: 600 700;
  font-style: normal;
  font-display: swap;
}

:root {
  /* FieldSignal palette */
  --ink:     #0A1116;   /* midnight navy-teal ground */
  --ink-2:   #0E171D;
  --panel:   #12202A;   /* cards / surfaces */
  --panel-2: #172A35;
  --line:    #253B45;   /* hairlines / borders */
  --text:    #E9F2F0;   /* cool white */
  --muted:   #8FA6A9;   /* secondary text */
  --faint:   #5B7175;   /* captions */
  --signal:  #3FE0CE;   /* THE accent: interactive, links, coordinates, reticle */
  --lock:    #5EF39A;   /* semantic green: GPS locked / success / checkmarks */
  --alert:   #FF6B6B;   /* error / delete cue only */
  --topo:    #C98A3C;   /* warm ochre — low-alpha contour texture only */

  --signal-12: rgba(63, 224, 206, 0.12);
  --signal-20: rgba(63, 224, 206, 0.20);
  --signal-40: rgba(63, 224, 206, 0.40);
  --hairline:  rgba(233, 242, 240, 0.08);

  --radius: 14px;
  --maxw: 1120px;

  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-sans);
  color: var(--text);
  background-color: var(--ink);
  /* Signal glow + faint topographic contour rings over the instrument ground */
  background-image:
    radial-gradient(1100px 620px at 82% -8%, rgba(63, 224, 206, 0.10), transparent 60%),
    radial-gradient(900px 520px at -8% 8%, rgba(63, 224, 206, 0.05), transparent 55%),
    repeating-radial-gradient(circle at 16% 22%, transparent 0 47px, rgba(201, 138, 60, 0.045) 47px 48px, transparent 48px 96px),
    repeating-radial-gradient(circle at 88% 72%, transparent 0 59px, rgba(201, 138, 60, 0.035) 59px 60px, transparent 60px 120px);
  background-attachment: fixed;
  line-height: 1.58;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--signal); text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

img, svg { max-width: 100%; }

/* Keyboard focus — visible signal ring everywhere */
a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--signal); color: var(--ink); padding: 10px 16px; border-radius: 0 0 10px 0;
  font-family: var(--font-mono); font-weight: 600; letter-spacing: 0.04em; z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Monospace label / eyebrow with crosshair tick ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--muted); margin: 0 0 22px;
}
.tick {
  position: relative; flex: none; width: 13px; height: 13px;
}
.tick::before, .tick::after {
  content: ""; position: absolute; background: var(--signal);
}
.tick::before { left: 50%; top: 0; width: 1.5px; height: 100%; transform: translateX(-50%); }
.tick::after  { top: 50%; left: 0; height: 1.5px; width: 100%; transform: translateY(-50%); }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 17, 22, 0.74);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; gap: 24px; height: 70px; }
.brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.brand__mark {
  display: grid; place-items: center; width: 44px; height: 44px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
}
.brand__mark svg { display: block; }
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__name {
  font-family: var(--font-mono); font-weight: 600; font-size: 15px;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--text);
}
.brand__by {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--signal); margin-top: 3px;
}
.nav__links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav__links a {
  color: var(--muted); font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.12em; text-transform: uppercase; transition: color .16s;
}
.nav__links a:hover { color: var(--text); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 600; font-size: 13px;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 13px 22px; border-radius: 10px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s ease, background .16s, border-color .16s, box-shadow .16s, color .16s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary {
  background: var(--signal); color: #04201C;
  box-shadow: 0 8px 24px -10px rgba(63, 224, 206, 0.7);
}
.btn--primary:hover { background: #58ecda; box-shadow: 0 12px 30px -10px rgba(63, 224, 206, 0.85); }
.btn--ghost { border-color: var(--line); color: var(--text); }
.btn--ghost:hover { border-color: var(--signal); color: var(--signal); }
.btn--soft {
  background: var(--panel); color: var(--faint); border-color: var(--line);
  cursor: default;
}
.btn--soft:hover { transform: none; }
.nav__cta { padding: 10px 16px; }

/* ---------- Hero ---------- */
.hero {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center;
  padding: 92px 24px 80px;
}
.hero__title {
  font-size: clamp(34px, 5.4vw, 60px); line-height: 1.03; letter-spacing: -0.03em;
  font-weight: 600; margin: 0 0 22px;
}
.accent { color: var(--signal); }
.hero__sub { font-size: 18px; color: var(--muted); max-width: 46ch; margin: 0 0 26px; }

/* Instrument telemetry readout */
.telemetry {
  display: inline-flex; align-items: center; flex-wrap: wrap; gap: 14px;
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, var(--panel), var(--ink-2));
  border: 1px solid var(--line); border-radius: 10px;
  padding: 11px 16px; margin: 0 0 30px;
}
.telemetry__field { display: inline-flex; align-items: baseline; gap: 8px; }
.telemetry__key { color: var(--faint); font-size: 11px; letter-spacing: 0.14em; }
.telemetry__val { color: var(--signal); font-weight: 500; }
.telemetry__sep { width: 1px; height: 14px; background: var(--line); }
.telemetry__lock {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--lock); font-weight: 600; font-size: 11.5px; letter-spacing: 0.14em;
}
.telemetry__led {
  width: 8px; height: 8px; border-radius: 50%; background: var(--lock);
  box-shadow: 0 0 0 3px rgba(94, 243, 154, 0.16);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 32px; }

/* ---------- Promise lists (mono, lock-green checks) ---------- */
.promises { list-style: none; margin: 0; padding: 0; }
.hero__promises { display: flex; flex-direction: column; gap: 12px; }
.promises li {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 13.5px; letter-spacing: 0.02em; color: var(--text);
}
.chk {
  flex: none; width: 22px; height: 22px; padding: 4px; border-radius: 6px;
  background: rgba(94, 243, 154, 0.14); border: 1px solid rgba(94, 243, 154, 0.35);
  fill: none; stroke: var(--lock); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round;
}

/* ---------- Phone mockup + reticle ---------- */
.hero__device { display: flex; justify-content: center; position: relative; }
.phone {
  position: relative; width: 300px; aspect-ratio: 9 / 19.2; max-width: 100%;
  background: #050B0F; border: 2px solid var(--line); border-radius: 40px;
  padding: 12px;
  box-shadow: 0 44px 90px -34px rgba(0,0,0,0.85), 0 0 0 1px var(--hairline) inset;
}
/* Instrument corner brackets around the device */
.phone__bracket { position: absolute; width: 20px; height: 20px; border: 2px solid var(--signal-40); }
.phone__bracket--tl { top: -8px; left: -8px; border-right: 0; border-bottom: 0; border-radius: 6px 0 0 0; }
.phone__bracket--tr { top: -8px; right: -8px; border-left: 0; border-bottom: 0; border-radius: 0 6px 0 0; }
.phone__bracket--bl { bottom: -8px; left: -8px; border-right: 0; border-top: 0; border-radius: 0 0 0 6px; }
.phone__bracket--br { bottom: -8px; right: -8px; border-left: 0; border-top: 0; border-radius: 0 0 6px 0; }
.phone__notch {
  position: absolute; top: 12px; left: 50%; transform: translateX(-50%);
  width: 116px; height: 22px; background: #050B0F; border-radius: 0 0 14px 14px; z-index: 4;
}
.shot {
  position: relative; height: 100%; border-radius: 30px; overflow: hidden;
  background: linear-gradient(200deg, #12333B 0%, #1C4740 40%, #4C4A2E 74%, #6B5230 100%);
}
.shot__scene {
  position: absolute; inset: 0;
  background:
    radial-gradient(120px 120px at 72% 24%, rgba(63, 224, 206, 0.35), transparent 70%),
    radial-gradient(160px 120px at 30% 88%, rgba(201, 138, 60, 0.30), transparent 72%),
    linear-gradient(0deg, rgba(0,0,0,0.42), transparent 46%);
}

/* Reticle: the hero "lock-on" moment (centered over the scene) */
.reticle {
  position: absolute; top: 34%; left: 50%; transform: translate(-50%, -50%);
  width: 148px; height: 148px; z-index: 2; pointer-events: none;
}
.reticle__corner { position: absolute; width: 26px; height: 26px; border: 2px solid var(--signal); }
.reticle__corner--tl { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.reticle__corner--tr { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.reticle__corner--bl { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.reticle__corner--br { bottom: 0; right: 0; border-left: 0; border-top: 0; }
.reticle__cross { position: absolute; background: var(--signal-40); }
.reticle__cross--h { top: 50%; left: 28%; right: 28%; height: 1.5px; transform: translateY(-50%); }
.reticle__cross--v { left: 50%; top: 28%; bottom: 28%; width: 1.5px; transform: translateX(-50%); }
.reticle__dot {
  position: absolute; top: 50%; left: 50%; width: 8px; height: 8px; border-radius: 50%;
  transform: translate(-50%, -50%); background: var(--lock);
  box-shadow: 0 0 0 4px rgba(94, 243, 154, 0.22);
}
.reticle__label {
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 10px; font-weight: 600; letter-spacing: 0.2em;
  color: var(--lock); white-space: nowrap;
}

.shot__strip {
  position: absolute; left: 10px; right: 10px; bottom: 74px; z-index: 3;
  display: flex; gap: 10px; align-items: stretch;
  background: rgba(10, 17, 22, 0.66); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px);
  border: 1px solid var(--hairline); border-radius: 12px; padding: 10px;
}
.minimap {
  position: relative; flex: none; width: 58px; border-radius: 8px;
  background: linear-gradient(135deg, #123038, #1B4038); border: 1px solid var(--line);
  overflow: hidden;
}
.minimap::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(63, 224, 206, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(63, 224, 206, 0.14) 1px, transparent 1px);
  background-size: 14px 14px;
}
.minimap__pin {
  position: absolute; top: 46%; left: 50%; width: 9px; height: 9px; transform: translate(-50%,-50%);
  background: var(--signal); border: 2px solid var(--text); border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(63, 224, 206, 0.28);
}
.minimap__attrib {
  position: absolute; bottom: 2px; right: 3px; font-size: 6px; color: var(--muted);
  font-family: var(--font-mono); background: rgba(10, 17, 22, 0.55); padding: 0 2px; border-radius: 2px;
}
.stamp { display: flex; flex-direction: column; justify-content: center; gap: 3px; min-width: 0; }
.stamp__addr {
  margin: 0; font-size: 11px; font-weight: 600; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.stamp__coords {
  margin: 0; font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  color: var(--signal); letter-spacing: 0.02em; font-variant-numeric: tabular-nums;
}
.stamp__time { margin: 0; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.03em; color: var(--muted); }
.shot__shutter {
  position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 3;
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(63, 224, 206, 0.14); border: 3px solid var(--signal);
}

/* ---------- Sections ---------- */
.section { padding: 88px 24px; position: relative; }
.section__title {
  font-size: clamp(26px, 3.6vw, 40px); line-height: 1.12; letter-spacing: -0.02em;
  font-weight: 600; margin: 0 0 12px;
}
.section__lead { font-size: 17px; color: var(--muted); max-width: 58ch; margin: 0 0 46px; }

/* Features grid */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--panel), var(--ink-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px 24px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; height: 2px; width: 0;
  background: var(--signal); transition: width .28s ease;
}
.card:hover {
  border-color: var(--signal-20); transform: translateY(-3px);
  box-shadow: 0 20px 40px -28px rgba(0,0,0,0.8);
}
.card:hover::before { width: 100%; }
.card__index {
  position: absolute; top: 20px; right: 22px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; color: var(--faint);
}
.card__icon {
  display: grid; place-items: center; width: 46px; height: 46px;
  background: var(--signal-12); border: 1px solid var(--signal-20); border-radius: 11px;
  margin-bottom: 18px; color: var(--signal);
}
.card__icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }
code {
  font-family: var(--font-mono); background: rgba(63, 224, 206, 0.09);
  border: 1px solid var(--signal-20); border-radius: 6px; padding: 1px 6px;
  font-size: 0.86em; color: var(--signal);
}

/* Privacy */
.section--privacy {
  background:
    radial-gradient(760px 360px at 50% 0%, rgba(63, 224, 206, 0.08), transparent 70%),
    repeating-radial-gradient(circle at 50% 120%, transparent 0 64px, rgba(201, 138, 60, 0.05) 64px 65px, transparent 65px 130px),
    var(--ink-2);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.privacy { max-width: 780px; margin: 0 auto; text-align: center; }
.privacy__head .eyebrow { justify-content: center; }
.privacy .section__lead { margin-left: auto; margin-right: auto; }
.promises--panel {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 26px;
  text-align: left; max-width: 640px; margin: 8px auto 30px;
}
.promises--panel li {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px;
}
.note {
  text-align: left; font-family: var(--font-sans); font-size: 14.5px; color: var(--muted);
  background: var(--panel); border: 1px solid var(--line); border-left: 2px solid var(--signal);
  border-radius: 12px; padding: 18px 20px; max-width: 740px; margin: 0 auto;
}
.note strong { color: var(--text); font-weight: 600; }
.note__icon { color: var(--signal); font-weight: 700; margin-right: 6px; }

/* Steps */
.steps { list-style: none; margin: 0 0 64px; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.step {
  position: relative;
  background: linear-gradient(180deg, var(--panel), var(--ink-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px;
}
.step__num {
  display: grid; place-items: center; width: 42px; height: 42px; border-radius: 10px;
  background: var(--signal-12); border: 1px solid var(--signal-20); color: var(--signal);
  font-family: var(--font-mono); font-weight: 600; font-size: 17px; margin-bottom: 16px;
}
.step h3 { margin: 0 0 8px; font-size: 18px; font-weight: 600; }
.step p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* CTA */
.cta {
  position: relative; overflow: hidden; text-align: center;
  background:
    radial-gradient(600px 260px at 50% -20%, rgba(63, 224, 206, 0.12), transparent 70%),
    linear-gradient(180deg, var(--panel-2), var(--ink-2));
  border: 1px solid var(--line); border-radius: 22px; padding: 60px 24px;
}
.cta__reticle {
  position: absolute; top: 26px; left: 50%; transform: translateX(-50%);
  width: 16px; height: 16px;
}
.cta__reticle::before, .cta__reticle::after { content: ""; position: absolute; background: var(--signal); }
.cta__reticle::before { left: 50%; top: 0; width: 1.5px; height: 100%; transform: translateX(-50%); }
.cta__reticle::after  { top: 50%; left: 0; height: 1.5px; width: 100%; transform: translateY(-50%); }
.cta h2 { font-size: clamp(24px, 3.4vw, 36px); letter-spacing: -0.02em; margin: 0 0 10px; font-weight: 600; }
.cta p { color: var(--muted); margin: 0 0 26px; font-size: 16px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 46px 0 40px; background: var(--ink); }
.footer__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  padding-bottom: 24px; border-bottom: 1px solid var(--line);
}
.footer__brand { display: flex; align-items: center; gap: 12px; }
.footer__mark { display: grid; place-items: center; width: 40px; height: 40px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; }
.footer__name { margin: 0; font-family: var(--font-mono); font-weight: 600; font-size: 14px; letter-spacing: 0.05em; text-transform: uppercase; }
.footer__by { margin: 2px 0 0; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--signal); }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__links a { color: var(--muted); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; transition: color .16s; }
.footer__links a:hover { color: var(--signal); }
.footer__legal { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 22px; }
.footer__legal p { margin: 0; font-size: 12.5px; color: var(--faint); }
.footer__attrib { font-family: var(--font-mono); letter-spacing: 0.01em; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 48px; padding-top: 68px; }
  .hero__device { order: -1; }
  .grid, .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .nav__links { display: none; }
  .grid, .steps, .promises--panel { grid-template-columns: 1fr; }
  .footer__legal { flex-direction: column; }
  .section { padding: 62px 20px; }
  .hero { padding-left: 20px; padding-right: 20px; }
  .container { padding: 0 20px; }
}

/* ---------- Motion — added only when the visitor allows it ---------- */
@media (prefers-reduced-motion: no-preference) {
  /* Staggered hero copy reveal */
  .hero__copy > * { opacity: 0; transform: translateY(12px); animation: rise .6s ease forwards; }
  .hero__copy > .eyebrow    { animation-delay: .05s; }
  .hero__copy > .hero__title{ animation-delay: .14s; }
  .hero__copy > .hero__sub  { animation-delay: .22s; }
  .hero__copy > .telemetry  { animation-delay: .30s; }
  .hero__copy > .hero__actions { animation-delay: .38s; }
  .hero__copy > .hero__promises { animation-delay: .46s; }

  /* The reticle "lock-on": brackets converge + crosshair, then the LOCKED readout */
  .reticle { opacity: 0; transform: translate(-50%, -50%) scale(1.28); animation: lockon .8s cubic-bezier(.2,.8,.2,1) .5s forwards; }
  .reticle__label { opacity: 0; animation: fade-in .4s ease 1.35s forwards; }
  .reticle__dot { animation: ping 2.6s ease-out 1.6s infinite; }

  .telemetry__led { animation: led-pulse 2.4s ease-in-out infinite; }

  @keyframes rise { to { opacity: 1; transform: translateY(0); } }
  @keyframes fade-in { to { opacity: 1; } }
  @keyframes lockon {
    0%   { opacity: 0; transform: translate(-50%, -50%) scale(1.28); }
    60%  { opacity: 1; }
    75%  { transform: translate(-50%, -50%) scale(0.96); }
    100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  }
  @keyframes ping {
    0%   { box-shadow: 0 0 0 0 rgba(94, 243, 154, 0.5); }
    70%  { box-shadow: 0 0 0 12px rgba(94, 243, 154, 0); }
    100% { box-shadow: 0 0 0 0 rgba(94, 243, 154, 0); }
  }
  @keyframes led-pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(94, 243, 154, 0.16); }
    50%      { box-shadow: 0 0 0 5px rgba(94, 243, 154, 0.05); }
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}