/* ═══════════════════════════════════════════════════════════════
   AKAMPIO v2 · Signature interaction components
   Adds one distinct verb per industry / product page.
   ═══════════════════════════════════════════════════════════════ */

/* ── Chapter progress rail (fixed left) ─────── */
.chapter-rail {
  position: fixed;
  left: 12px;
  top: 50%;
  transform: translate(-12px, -50%);
  z-index: 40;
  display: grid;
  gap: 8px;
  pointer-events: none;
  padding: 12px 14px 12px 10px;
  background: rgba(14,15,18,0.82);
  border: 1px solid var(--ak-hairline);
  border-radius: 2px;
  box-shadow: 0 18px 38px -24px rgba(0,0,0,0.8);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
}
.chapter-rail.is-visible { opacity: 1; visibility: visible; transform: translate(0, -50%); }
.chapter-rail .rail-dot {
  position: relative;
  padding: 5px 0 5px 14px;
  font-family: var(--ak-font-mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ak-hud);
  pointer-events: auto;
  cursor: pointer;
  transition: color .2s;
}
.chapter-rail .rail-dot::before {
  content: "";
  position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px;
  border: 1px solid var(--ak-hud);
  border-radius: 50%;
  transition: background .2s, border-color .2s;
}
.chapter-rail .rail-dot:hover { color: var(--ak-hud); }
.chapter-rail .rail-dot.on { color: var(--ak-signal); }
.chapter-rail .rail-dot.on::before { background: var(--ak-signal); border-color: var(--ak-signal); box-shadow: 0 0 0 3px rgba(91,140,255,0.15); }
@media (max-width: 1450px) { .chapter-rail { display: none; } }

/* ── Spec-sheet caption row (mono, 3-col) ─── */
.spec-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  padding: 20px 0;
  border-top: 1px solid var(--ak-hairline);
  font-family: var(--ak-font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ak-hud-2);
}
.spec-row .k { color: var(--ak-hud-3); display: block; margin-bottom: 4px; letter-spacing: 0.22em; }
.spec-row .v { color: var(--ak-hud); }

/* ═══════════════════════════════════════════════════════════════
   MANUFACTURING · "Follow a defect" console
   ═══════════════════════════════════════════════════════════════ */
.defect-console {
  margin-top: 24px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--ak-hairline);
}
@media (max-width: 700px) { .defect-console { grid-template-columns: 1fr; } }
.defect-cell { background: var(--ak-basalt); padding: 18px 20px; min-height: 130px; }
.defect-cell .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 10px; }
.defect-cell .v { font-family: var(--ak-font-mono); font-size: 16px; letter-spacing: 0.02em; color: var(--ak-bone); line-height: 1.35; }
.defect-cell .v .sig { color: var(--ak-signal); }
.defect-cell .v .ember { color: var(--ak-ember); }
.defect-cell.status .v { font-size: 18px; letter-spacing: -0.005em; }

.defect-controls { display: flex; align-items: center; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.defect-play {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 12px 20px;
  border: 1px solid var(--ak-signal);
  background: rgba(91,140,255,0.06);
  color: var(--ak-signal);
  font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  cursor: pointer; transition: background .18s, color .18s;
}
.defect-play:hover { background: var(--ak-signal); color: var(--ak-basalt); }
.defect-play.on { background: var(--ak-signal); color: var(--ak-basalt); }
.defect-timeline {
  flex: 1; min-width: 200px;
  height: 4px; background: var(--ak-basalt-md); position: relative;
  border-radius: 999px; overflow: hidden;
}
.defect-timeline .fill { position: absolute; inset: 0 auto 0 0; background: var(--ak-signal); width: 0%; transition: width .1s linear; }
.defect-timeline .marks { position: absolute; inset: 0; display: flex; }
.defect-timeline .marks span { flex: 1; border-right: 1px solid var(--ak-hairline); }
.defect-timeline .marks span:last-child { border-right: none; }
.defect-clock { font-family: var(--ak-font-mono); font-size: 12px; letter-spacing: 0.12em; color: var(--ak-hud); min-width: 60px; text-align: right; }

/* ═══════════════════════════════════════════════════════════════
   PORTS · Container handover meters
   ═══════════════════════════════════════════════════════════════ */
.handover-console {
  margin-top: 24px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 800px) { .handover-console { grid-template-columns: 1fr; } }
.handover-side { }
.handover-side .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 12px; }
.handover-side h5 { margin: 0 0 16px; font-size: 20px; font-weight: 500; letter-spacing: -0.015em; color: var(--ak-bone); }
.handover-side h5 .sig { color: var(--ak-signal); }
.rssi-meter { display: grid; grid-template-columns: 60px 1fr auto; gap: 10px; align-items: center; margin-bottom: 10px; }
.rssi-meter .lb { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.16em; color: var(--ak-hud); }
.rssi-meter .bar { position: relative; height: 6px; background: var(--ak-basalt-md); border-radius: 999px; overflow: hidden; }
.rssi-meter .fill { position: absolute; inset: 0 auto 0 0; width: 20%; background: var(--ak-signal); transition: width .5s ease-out; }
.rssi-meter.active .fill { background: var(--ak-signal); box-shadow: 0 0 12px rgba(91,140,255,0.5); }
.rssi-meter.inactive .fill { background: var(--ak-basalt-4); }
.rssi-meter .val { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.12em; color: var(--ak-hud-2); min-width: 50px; text-align: right; }
.handover-log { display: grid; gap: 4px; font-family: var(--ak-font-mono); font-size: 11px; }
.handover-log-row { display: grid; grid-template-columns: 60px 60px 1fr; gap: 12px; padding: 6px 0; border-top: 1px solid var(--ak-hairline); }
.handover-log-row .t { color: var(--ak-hud-2); }
.handover-log-row .l { color: var(--ak-signal); }
.handover-log-row .m { color: var(--ak-hud); }

/* ═══════════════════════════════════════════════════════════════
   UTILITIES · Drone mission
   ═══════════════════════════════════════════════════════════════ */
.mission-console {
  margin-top: 24px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
  padding: 20px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}
@media (max-width: 700px) { .mission-console { grid-template-columns: 1fr; } }
.mission-side .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.mission-side .v { font-family: var(--ak-font-mono); font-size: 14px; letter-spacing: 0.06em; color: var(--ak-bone); margin-top: 4px; }
.mission-side .v .sig { color: var(--ak-signal); }
.mission-controls { display: flex; gap: 8px; }
.mission-btn {
  padding: 10px 16px; border: 1px solid var(--ak-hairline-hi); color: var(--ak-hud);
  font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  cursor: pointer; transition: all .18s;
}
.mission-btn:hover { border-color: var(--ak-signal); color: var(--ak-signal); }
.mission-btn.primary { border-color: var(--ak-signal); background: var(--ak-signal); color: var(--ak-basalt); }
.mission-btn.primary:hover { background: var(--ak-signal-hi); border-color: var(--ak-signal-hi); }
.mission-panel {
  margin-top: 12px;
  padding: 16px 20px;
  border: 1px solid var(--ak-signal);
  background: rgba(91,140,255,0.06);
  display: none;
}
.mission-panel.on { display: block; }
.mission-panel .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-signal); margin-bottom: 6px; }
.mission-panel .h { font-size: 16px; font-weight: 500; letter-spacing: -0.01em; color: var(--ak-bone); margin: 0 0 4px; }
.mission-panel p { margin: 0; font-family: var(--ak-font-mono); font-size: 12px; color: var(--ak-hud); }

/* ═══════════════════════════════════════════════════════════════
   EDUCATION · Startup journey
   ═══════════════════════════════════════════════════════════════ */
.startup-journey {
  margin-top: 24px;
  padding: 24px 20px 20px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
}
.startup-journey .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 20px; }
.startup-track {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  position: relative;
  padding: 20px 0;
}
@media (max-width: 900px) { .startup-track { grid-template-columns: 1fr 1fr; } }
.startup-track::before {
  content: ""; position: absolute; left: 30px; right: 30px; top: 30px;
  height: 1px; background: var(--ak-hairline);
}
@media (max-width: 900px) { .startup-track::before { display: none; } }
.startup-stop {
  position: relative;
  text-align: center;
  padding-top: 20px;
}
.startup-stop::before {
  content: attr(data-n);
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 24px; height: 24px;
  border: 1px solid var(--ak-hairline-hi); background: var(--ak-basalt);
  border-radius: 50%; display: grid; place-items: center;
  font-family: var(--ak-font-mono); font-size: 10px; color: var(--ak-hud-2);
  transition: background .3s, border-color .3s, color .3s;
}
.startup-stop.on::before, .startup-stop.passed::before {
  background: var(--ak-signal); border-color: var(--ak-signal); color: var(--ak-basalt);
}
.startup-stop h6 { margin: 8px 0 2px; font-size: 12px; font-weight: 500; letter-spacing: -0.005em; color: var(--ak-hud); }
.startup-stop.on h6 { color: var(--ak-signal); }
.startup-stop p { margin: 0; font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ak-hud-3); }
.startup-pill {
  position: absolute; top: 22px; left: 0;
  padding: 4px 8px;
  background: var(--ak-signal); color: var(--ak-basalt);
  font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase;
  border-radius: 2px;
  transition: left 1.4s cubic-bezier(.6, .05, .3, 1);
  pointer-events: none;
  z-index: 2;
}

/* ═══════════════════════════════════════════════════════════════
   DEFENCE · Mission clock (restraint)
   ═══════════════════════════════════════════════════════════════ */
.mission-clock {
  margin-top: 24px;
  padding: 32px 20px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
@media (max-width: 700px) { .mission-clock { grid-template-columns: 1fr; text-align: left; } }
.mission-clock .clock {
  font-family: var(--ak-font-mono);
  font-size: clamp(64px, 8vw, 120px);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ak-signal);
  line-height: 1;
  font-feature-settings: "tnum";
}
.mission-clock .clock .sep { color: var(--ak-hud-3); }
.mission-clock .meta { font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; }
.mission-clock .meta .k { color: var(--ak-hud-2); margin-bottom: 6px; }
.mission-clock .meta .v { color: var(--ak-bone); font-size: 15px; letter-spacing: 0.08em; margin-bottom: 20px; }
.mission-clock .meta .v .sig { color: var(--ak-signal); }

/* ═══════════════════════════════════════════════════════════════
   HEALTHCARE · Asset locator
   ═══════════════════════════════════════════════════════════════ */
.asset-locator {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
}
.asset-locator .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 12px; }
.asset-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
@media (max-width: 700px) { .asset-grid { grid-template-columns: 1fr 1fr 1fr; } }
@media (max-width: 400px) { .asset-grid { grid-template-columns: 1fr 1fr; } }
.asset-btn {
  padding: 14px 10px;
  border: 1px solid var(--ak-hairline);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: border-color .18s, background .18s;
  display: grid; gap: 4px;
}
.asset-btn:hover { border-color: var(--ak-signal); }
.asset-btn.on { border-color: var(--ak-signal); background: rgba(91,140,255,0.06); }
.asset-btn .code { font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ak-hud-2); }
.asset-btn.on .code { color: var(--ak-signal); }
.asset-btn .name { font-size: 13px; color: var(--ak-bone); font-weight: 500; letter-spacing: -0.005em; }
.asset-btn .loc { font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.14em; color: var(--ak-hud); text-transform: uppercase; margin-top: 2px; }
.asset-btn.on .loc { color: var(--ak-signal); }

/* ═══════════════════════════════════════════════════════════════
   SMART CITIES · District pulse strip
   ═══════════════════════════════════════════════════════════════ */
.pulse-strip {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--ak-hairline);
}
@media (max-width: 800px) { .pulse-strip { grid-template-columns: 1fr 1fr; } }
.pulse-cell { background: var(--ak-basalt); padding: 16px 18px; }
.pulse-cell .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.pulse-cell .v {
  font-family: var(--ak-font-mono);
  font-size: 28px; font-weight: 400; letter-spacing: -0.02em; color: var(--ak-signal);
  margin: 6px 0 8px;
  font-feature-settings: "tnum";
  transition: color .2s;
}
.pulse-cell .u { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.18em; color: var(--ak-hud); }
.pulse-cell .u .delta { color: var(--ak-signal); }
.pulse-cell .u .delta.down { color: var(--ak-ember); }
.spark {
  display: block; margin-top: 10px;
  height: 24px; width: 100%;
}
.spark polyline { fill: none; stroke: var(--ak-signal); stroke-width: 1; }
.spark .axis { stroke: var(--ak-hairline); stroke-width: 1; }

/* ═══════════════════════════════════════════════════════════════
   Solutions overview · Engagement selector
   ═══════════════════════════════════════════════════════════════ */
.engage-picker {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 40px;
  padding: 32px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt-hi);
  margin-bottom: 40px;
}
@media (max-width: 900px) { .engage-picker { grid-template-columns: 1fr; gap: 20px; padding: 24px; } }
.engage-side .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 12px; }
.engage-side h4 { margin: 0 0 20px; font-size: 22px; font-weight: 500; letter-spacing: -0.015em; color: var(--ak-bone); }
.engage-btn {
  display: block; width: 100%;
  padding: 16px 18px;
  margin-bottom: 8px;
  background: transparent; border: 1px solid var(--ak-hairline); border-left: 2px solid var(--ak-hairline);
  color: var(--ak-hud); text-align: left; cursor: pointer;
  transition: border-color .18s, color .18s, background .18s;
}
.engage-btn:hover { border-color: var(--ak-signal); color: var(--ak-bone); }
.engage-btn.on { border-left-color: var(--ak-signal); border-color: var(--ak-hairline-hi); color: var(--ak-bone); background: rgba(91,140,255,0.04); }
.engage-btn .name { display: block; font-size: 17px; font-weight: 500; letter-spacing: -0.015em; }
.engage-btn.on .name { color: var(--ak-signal); }
.engage-btn small { display: block; font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ak-hud-2); margin-top: 4px; }
.engage-out { }
.engage-out .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-signal); margin-bottom: 12px; }
.engage-out h5 { margin: 0 0 8px; font-size: 24px; font-weight: 400; letter-spacing: -0.02em; color: var(--ak-bone); }
.engage-out p { margin: 0 0 20px; color: var(--ak-hud); font-size: 15px; max-width: 52ch; }
.engage-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.engage-list li {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--ak-hairline);
  font-size: 14px; color: var(--ak-hud);
}
.engage-list li::before {
  content: ""; width: 8px; height: 1px; background: var(--ak-signal); flex-shrink: 0;
}
.engage-list li.on { border-color: var(--ak-signal); color: var(--ak-bone); background: rgba(91,140,255,0.05); }
.engage-list li.on::before { width: 16px; }

/* ═══════════════════════════════════════════════════════════════
   Method blueprint · SVG engineering diagram
   ═══════════════════════════════════════════════════════════════ */
.blueprint {
  border: 1px solid rgba(14,15,18,0.15);
  background: var(--ak-bone);
  padding: 32px 32px 20px;
  position: relative;
}
.blueprint .header {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 16px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(14,15,18,0.1);
  font-family: var(--ak-font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(14,15,18,0.55);
}
.blueprint .header .l { display: flex; gap: 20px; align-items: center; }
.blueprint .header .r { display: flex; gap: 20px; align-items: center; }
.blueprint .header .sig { color: var(--ak-signal); }
.blueprint svg { display: block; width: 100%; height: auto; }
@media (max-width: 600px) {
  .blueprint { padding: 24px 20px 18px; }
  .blueprint .header {
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
    letter-spacing: 0.14em;
  }
  .blueprint .header .l,
  .blueprint .header .r {
    flex-wrap: wrap;
    gap: 8px 12px;
    min-width: 0;
  }
}
.blueprint .footer {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  padding-top: 20px;
  margin-top: 12px;
  border-top: 1px solid rgba(14,15,18,0.1);
  font-family: var(--ak-font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(14,15,18,0.55);
}
@media (max-width: 800px) { .blueprint .footer { grid-template-columns: 1fr 1fr 1fr; } }
@media (max-width: 500px) { .blueprint .footer { grid-template-columns: 1fr 1fr; } }
.blueprint .footer .stage {
  display: flex; flex-direction: column; gap: 2px;
}
.blueprint .footer .stage .k { color: var(--ak-signal); }
.blueprint .footer .stage .v { color: var(--ak-basalt); font-size: 11px; letter-spacing: 0.06em; }

/* Dark bone-inversion for use on dark sections */
.sec-bone .blueprint { background: var(--ak-bone); }

/* ═══════════════════════════════════════════════════════════════
   Technology · Layer isolator
   ═══════════════════════════════════════════════════════════════ */
.layer-stack {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding: 32px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt-hi);
}
@media (max-width: 900px) { .layer-stack { grid-template-columns: 1fr; gap: 24px; padding: 24px; } }
.layer-nav { display: grid; gap: 4px; align-content: start; }
.layer-nav .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 8px; }
.layer-tab {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 14px;
  background: transparent; border: 1px solid var(--ak-hairline);
  color: var(--ak-hud);
  cursor: pointer;
  transition: color .2s, background .2s, border-color .2s;
  text-align: left;
}
.layer-tab:hover { color: var(--ak-bone); border-color: var(--ak-hairline-hi); }
.layer-tab.on { color: var(--ak-signal); background: rgba(91,140,255,0.06); border-color: var(--ak-signal); }
.layer-tab .name { font-size: 14px; font-weight: 500; letter-spacing: -0.005em; }
.layer-tab .num { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.18em; color: var(--ak-hud-2); }
.layer-tab.on .num { color: var(--ak-signal); }
.layer-panel { }
.layer-panel .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-signal); margin-bottom: 12px; }
.layer-panel h4 { margin: 0 0 16px; font-size: 30px; font-weight: 300; letter-spacing: -0.025em; color: var(--ak-bone); line-height: 1.05; }
.layer-panel p.lead { color: var(--ak-hud); font-size: 16px; max-width: 60ch; margin: 0 0 24px; }
.layer-sub {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--ak-hairline); border: 1px solid var(--ak-hairline);
  margin-top: 20px;
}
@media (max-width: 700px) { .layer-sub { grid-template-columns: 1fr; } }
.layer-sub-cell { background: var(--ak-basalt); padding: 16px; }
.layer-sub-cell .n { font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.layer-sub-cell .h { font-size: 15px; font-weight: 500; letter-spacing: -0.01em; color: var(--ak-bone); margin: 6px 0 4px; }
.layer-sub-cell p { margin: 0; font-size: 13px; color: var(--ak-hud); }