/* ==========================================================================
   Beltscan Systems — Global Installed Base section
   v1.0.0
   Scoped under .bsm — safe to drop into the existing homepage.
   Theme: reads [data-theme="dark"] on any ancestor (html/body/section).
   To align with site brand tokens, override the custom properties below.
   ========================================================================== */

.bsm {
  /* ---- light theme (default) ---- */
  --bsm-bg: #fafbfc;
  --bsm-bg-map: transparent;
  --bsm-land: #e2e7ec;
  --bsm-land-stroke: #cbd3db;
  --bsm-grid: rgba(23, 37, 54, 0.055);
  --bsm-ink: #101720;
  --bsm-ink-soft: #57626f;
  --bsm-accent: #0f5fd7;          /* Beltscan blue — map to site brand var */
  --bsm-accent-soft: rgba(15, 95, 215, 0.14);
  --bsm-hairline: rgba(16, 23, 32, 0.14);
  --bsm-card-bg: rgba(255, 255, 255, 0.94);
  --bsm-card-border: rgba(16, 23, 32, 0.16);
  --bsm-card-shadow: 0 14px 34px rgba(13, 24, 38, 0.14);
  --bsm-chip-bg: transparent;
  --bsm-chip-active-bg: rgba(15, 95, 215, 0.08);
  --bsm-glow: none;

  position: relative;
  background: var(--bsm-bg);
  color: var(--bsm-ink);
  padding: clamp(56px, 8vw, 108px) 0 clamp(48px, 6vw, 84px);
  overflow: hidden;
  font-family: "Barlow", system-ui, -apple-system, sans-serif;
}

[data-theme="dark"] .bsm,
.bsm[data-theme="dark"] {
  --bsm-bg: #0b1016;
  --bsm-land: #1b232e;
  --bsm-land-stroke: #26303c;
  --bsm-grid: rgba(214, 228, 244, 0.05);
  --bsm-ink: #ecf1f6;
  --bsm-ink-soft: #8d99a7;
  --bsm-accent: #4da3ff;
  --bsm-accent-soft: rgba(77, 163, 255, 0.16);
  --bsm-hairline: rgba(236, 241, 246, 0.14);
  --bsm-card-bg: rgba(16, 22, 30, 0.94);
  --bsm-card-border: rgba(236, 241, 246, 0.16);
  --bsm-card-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
  --bsm-chip-active-bg: rgba(77, 163, 255, 0.1);
  --bsm-glow: drop-shadow(0 0 6px rgba(77, 163, 255, 0.55));
}

.bsm * { box-sizing: border-box; }

.bsm-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

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

.bsm-header { max-width: 640px; }

.bsm-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--bsm-accent);
  margin: 0 0 18px;
}

.bsm-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--bsm-accent);
}

.bsm-title {
  font-family: "Barlow Condensed", "Barlow", sans-serif;
  font-weight: 600;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.04;
  letter-spacing: 0.005em;
  margin: 0 0 16px;
}

.bsm-lede {
  font-size: clamp(15px, 1.35vw, 17px);
  font-weight: 400;
  line-height: 1.6;
  color: var(--bsm-ink-soft);
  margin: 0;
}

/* ---- region selector ---- */

.bsm-regions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 30px 0 8px;
}

.bsm-region-btn {
  appearance: none;
  border: 1px solid var(--bsm-hairline);
  background: var(--bsm-chip-bg);
  color: var(--bsm-ink-soft);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 7px 13px;
  border-radius: 2px;
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.bsm-region-btn:hover { color: var(--bsm-ink); border-color: var(--bsm-ink-soft); }

.bsm-region-btn:focus-visible {
  outline: 2px solid var(--bsm-accent);
  outline-offset: 2px;
}

.bsm-region-btn[aria-pressed="true"] {
  color: var(--bsm-accent);
  border-color: var(--bsm-accent);
  background: var(--bsm-chip-active-bg);
}

/* ---- map ---- */

.bsm-map-wrap { position: relative; margin-top: 10px; }

.bsm-map {
  display: block;
  width: 100%;
  height: auto;
}

.bsm-land {
  fill: var(--bsm-land);
  stroke: var(--bsm-land-stroke);
  stroke-width: 0.5;
  opacity: 0;
  transition: opacity 0.9s ease;
}

.bsm-graticule {
  fill: none;
  stroke: var(--bsm-grid);
  stroke-width: 1;
  opacity: 0;
  transition: opacity 1.2s ease 0.25s;
}

.bsm.is-visible .bsm-land { opacity: 1; }
.bsm.is-visible .bsm-graticule { opacity: 1; }

/* ---- markers: precision survey nodes ---- */

.bsm-node { cursor: pointer; }

.bsm-node circle,
.bsm-node line,
.bsm-node text { pointer-events: none; }

.bsm-node .bsm-hit {
  fill: transparent;
  stroke: none;
  pointer-events: all;
}

.bsm-node .bsm-dot { fill: var(--bsm-accent); }

.bsm-node .bsm-ring {
  fill: none;
  stroke: var(--bsm-accent);
  stroke-width: 1;
  opacity: 0.55;
}

.bsm-node .bsm-ring-outer {
  fill: none;
  stroke: var(--bsm-accent);
  stroke-width: 0.75;
  opacity: 0.28;
}

.bsm-node .bsm-tick {
  stroke: var(--bsm-accent);
  stroke-width: 1;
  opacity: 0.6;
}

.bsm-node .bsm-count {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11.5px;
  font-weight: 500;
  fill: var(--bsm-ink);
  letter-spacing: 0.04em;
}

.bsm-node .bsm-count-sub {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 8.5px;
  fill: var(--bsm-ink-soft);
  letter-spacing: 0.14em;
}

/* entrance: scale-in + single pulse (animates the inner group so the
   outer positioning transform attribute is never overridden) */
.bsm-node-inner {
  opacity: 0;
  transform: scale(0.35);
  transform-origin: center;
  transform-box: fill-box;
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.2, 0.9, 0.3, 1.2);
  transition-delay: var(--d, 0s);
}

.bsm.is-visible .bsm-node-inner { opacity: 1; transform: scale(1); }

.bsm-pulse {
  fill: none;
  stroke: var(--bsm-accent);
  stroke-width: 1.25;
  opacity: 0;
}

.bsm.is-visible .bsm-pulse {
  animation: bsm-pulse-once 1.1s ease-out 1 forwards;
  animation-delay: calc(var(--d, 0s) + 0.3s);
}

@keyframes bsm-pulse-once {
  0%   { opacity: 0.7; transform: scale(1); }
  100% { opacity: 0;   transform: scale(3.2); }
}

.bsm-pulse {
  transform-origin: center;
  transform-box: fill-box;
}

/* hover / active state */
.bsm-node:hover .bsm-dot,
.bsm-node.is-active .bsm-dot { filter: var(--bsm-glow); }

.bsm-node:hover .bsm-ring,
.bsm-node.is-active .bsm-ring { opacity: 1; }

.bsm-node:focus { outline: none; }
.bsm-node:focus-visible { outline: none; }
.bsm-node:focus-visible .bsm-ring { opacity: 1; stroke-width: 1.75; }

/* region dimming */
.bsm[data-region] .bsm-node { transition: opacity 0.35s ease; }
.bsm[data-region="australia"]     .bsm-node:not([data-region="australia"]),
.bsm[data-region="asia"]          .bsm-node:not([data-region="asia"]),
.bsm[data-region="north-america"] .bsm-node:not([data-region="north-america"]),
.bsm[data-region="africa"]        .bsm-node:not([data-region="africa"]),
.bsm[data-region="europe"]        .bsm-node:not([data-region="europe"]),
.bsm[data-region="south-america"] .bsm-node:not([data-region="south-america"]) {
  opacity: 0.14;
  pointer-events: none;
}

/* ---- info card ---- */

.bsm-card {
  position: absolute;
  z-index: 4;
  min-width: 216px;
  max-width: 292px;
  background: var(--bsm-card-bg);
  border: 1px solid var(--bsm-card-border);
  border-radius: 3px;
  box-shadow: var(--bsm-card-shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 14px 16px 13px;
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.bsm-card.is-open { opacity: 1; transform: translateY(0); pointer-events: auto; }

.bsm-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--bsm-accent);
}

.bsm-card-name {
  font-family: "Barlow Condensed", "Barlow", sans-serif;
  font-weight: 600;
  font-size: 19px;
  line-height: 1.12;
  letter-spacing: 0.01em;
  margin: 0 0 3px;
}

.bsm-card-place {
  font-size: 13px;
  color: var(--bsm-ink-soft);
  margin: 0 0 9px;
}

.bsm-card-tag {
  display: inline-block;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bsm-accent);
  border: 1px solid var(--bsm-accent-soft);
  background: var(--bsm-accent-soft);
  border-radius: 2px;
  padding: 3px 7px;
}

.bsm-card-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  max-height: 208px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.bsm-card-list li {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-size: 12.5px;
  line-height: 1.35;
  padding: 5.5px 0;
  border-top: 1px solid var(--bsm-hairline);
}

.bsm-card-list li:first-child { border-top: 0; }

.bsm-card-list .s {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bsm-ink-soft);
  white-space: nowrap;
  padding-top: 2px;
}

.bsm-card-close {
  position: absolute;
  top: 6px; right: 6px;
  appearance: none;
  border: 0;
  background: none;
  color: var(--bsm-ink-soft);
  font-size: 15px;
  line-height: 1;
  padding: 5px 7px;
  cursor: pointer;
  display: none;
}

.bsm-card-close:hover { color: var(--bsm-ink); }
.bsm-card.is-pinned .bsm-card-close { display: block; }

/* ---- credibility callout ---- */

.bsm-callout {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 28px;
  border-top: 1px solid var(--bsm-hairline);
  margin-top: clamp(24px, 3.5vw, 44px);
  padding-top: 22px;
}

.bsm-callout-lead {
  font-family: "Barlow Condensed", "Barlow", sans-serif;
  font-weight: 600;
  font-size: 21px;
  letter-spacing: 0.015em;
  margin: 0;
}

.bsm-callout-sectors {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bsm-ink-soft);
  margin: 0;
}

.bsm-callout-sectors b {
  font-weight: 400;
  color: var(--bsm-accent);
  padding: 0 4px;
}

/* ---- mobile ---- */

.bsm-card-slot { display: none; }

@media (max-width: 760px) {
  .bsm-regions { margin-top: 22px; }

  /* at phone scale the ring size communicates density; counts move
     into the tap panel ("15 installations") instead of tiny map text */
  .bsm-count, .bsm-count-sub { display: none; }

  /* taller purpose-built composition: JS crops viewBox + scales markers */
  .bsm-map-wrap { margin-top: 4px; }

  /* floating card becomes an in-flow panel below the map */
  .bsm-card {
    position: static;
    min-width: 0;
    max-width: none;
    transform: none;
    display: none;
    margin-top: 12px;
  }
  .bsm-card.is-open { display: block; transform: none; }

  .bsm-callout { gap: 8px 18px; }
  .bsm-callout-lead { font-size: 18px; }
  .bsm-callout-sectors { font-size: 10px; line-height: 1.8; }
}

/* ---- reduced motion ---- */

@media (prefers-reduced-motion: reduce) {
  .bsm-land, .bsm-graticule, .bsm-node-inner, .bsm-card { transition: none; }
  .bsm-node-inner { opacity: 1; transform: none; }
  .bsm-land, .bsm-graticule { opacity: 1; }
  .bsm.is-visible .bsm-pulse, .bsm-pulse { animation: none; opacity: 0; }
}