/* ═══════════════════════════════════════════════════════════════
   AKAMPIO v2 · Inner-page styles
   ═══════════════════════════════════════════════════════════════ */

/* ── Inner page hero ─────────────────────── */
.p-hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
}
.p-hero .p-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: end;
}
@media (max-width: 1000px) { .p-hero .p-hero-inner { grid-template-columns: 1fr; gap: 32px; } }
.p-hero .breadcrumb {
  font-family: var(--ak-font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ak-hud-2);
  margin: 0 0 32px;
}
.p-hero .breadcrumb .sep { margin: 0 10px; opacity: 0.5; }
.p-hero .breadcrumb .cur { color: var(--ak-signal); }
.p-hero h1 { max-width: 22ch; margin: 12px 0 20px; }
.p-hero h1 em { font-style: normal; color: var(--ak-signal); }
.p-hero .lead { max-width: 46ch; margin-bottom: 32px; }
.p-hero .btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.p-hero .p-hero-side {
  align-self: end;
  padding: 24px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt-hi);
  font-family: var(--ak-font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ak-hud);
}
.p-hero .p-hero-side dl { display: grid; grid-template-columns: 100px 1fr; row-gap: 12px; column-gap: 20px; margin: 0; }
.p-hero .p-hero-side dt { color: var(--ak-hud-2); }
.p-hero .p-hero-side dd { margin: 0; color: var(--ak-bone); }

/* Sections inside inner pages */
.sec-title { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: end; margin-bottom: 60px; }
@media (max-width: 900px) { .sec-title { grid-template-columns: 1fr; gap: 20px; margin-bottom: 32px; } }
.sec-title h2 { font-size: clamp(32px, 4.2vw, 60px); font-weight: 300; letter-spacing: -0.03em; line-height: 1; margin: 12px 0 0; text-wrap: balance; }
.sec-title h2 em { font-style: normal; color: var(--ak-signal); }
.sec-eyebrow { display: inline-flex; align-items: center; gap: 12px; font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-hud-2); }
.sec-eyebrow::before { content: ""; width: 24px; height: 1px; background: currentColor; opacity: 0.6; }
.sec-eyebrow .sig { color: var(--ak-signal); }

/* Feature cells (why cells on subpages) */
.cells-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--ak-hairline); border: 1px solid var(--ak-hairline); }
.cells-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--ak-hairline); border: 1px solid var(--ak-hairline); }
.cells-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--ak-hairline); border: 1px solid var(--ak-hairline); }
@media (max-width: 900px) { .cells-4, .cells-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .cells-4, .cells-3, .cells-2 { grid-template-columns: 1fr; } }
.cell {
  background: var(--ak-basalt);
  padding: 28px;
  display: flex; flex-direction: column; gap: 10px;
  min-height: 200px;
}
.sec-bone .cell { background: var(--ak-bone-1); }
.cell .n { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-signal); }
.cell h4 { margin: 4px 0 0; font-size: 19px; font-weight: 500; letter-spacing: -0.015em; }
.cell p { margin: 0; color: var(--ak-hud); font-size: 14px; }
.sec-bone .cell p { color: rgba(14,15,18,0.66); }

/* Rich list */
.rich {
  display: grid; gap: 1px;
  background: var(--ak-hairline);
  border-top: 1px solid var(--ak-hairline);
  border-bottom: 1px solid var(--ak-hairline);
}
.rich-row {
  background: var(--ak-basalt);
  display: grid;
  grid-template-columns: 64px 260px 1fr;
  gap: 24px;
  padding: 24px 4px;
  align-items: baseline;
}
.sec-bone .rich, .sec-bone .rich-row { background: var(--ak-bone); }
.sec-bone .rich { background: var(--ak-hairline); }
.rich-row .idx { font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-signal); }
.rich-row h4 { margin: 0; font-size: 20px; font-weight: 500; letter-spacing: -0.015em; }
.rich-row p { margin: 0; color: var(--ak-hud); font-size: 15px; }
.sec-bone .rich-row p { color: rgba(14,15,18,0.66); }
@media (max-width: 760px) { .rich-row { grid-template-columns: 1fr; gap: 6px; } }

/* Tag list */
.tags { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; margin: 24px 0 0; }
.tags li {
  padding: 8px 14px; border: 1px solid var(--ak-hairline); border-radius: 999px;
  font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ak-hud);
}
.sec-bone .tags li { border-color: rgba(14,15,18,0.15); color: rgba(14,15,18,0.66); }

/* Tile grid (overview pages) */
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .tiles { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .tiles { grid-template-columns: 1fr; } }
.tile {
  background: var(--ak-basalt-hi);
  border: 1px solid var(--ak-hairline);
  padding: 32px;
  display: flex; flex-direction: column; gap: 14px;
  min-height: 300px;
  transition: border-color .2s, transform .2s;
}
.sec-bone .tile { background: var(--ak-bone-1); border-color: rgba(14,15,18,0.1); }
.tile:hover { border-color: var(--ak-signal); transform: translateY(-3px); }
.tile.tile-soon {
  opacity: 0.75;
  cursor: default;
}
.tile.tile-soon:hover {
  border-color: var(--ak-hairline);
  transform: none;
}
.tile .num { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-signal); }
.tile h3 { margin: 0; font-size: 24px; font-weight: 400; letter-spacing: -0.02em; line-height: 1.1; }
.tile p { margin: 0; color: var(--ak-hud); font-size: 14px; }
.sec-bone .tile p { color: rgba(14,15,18,0.66); }
.tile .foot { margin-top: auto; display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--ak-signal); font-family: var(--ak-font-mono); letter-spacing: 0.18em; text-transform: uppercase; }
.tile .foot .arr { width: 28px; height: 28px; border: 1px solid var(--ak-hairline); border-radius: 50%; display: grid; place-items: center; transition: transform .2s, border-color .2s; }
.tile:hover .foot .arr { transform: rotate(-45deg); border-color: var(--ak-signal); }
.sec-bone .tile .foot .arr { border-color: rgba(14,15,18,0.15); }

/* Table */
.tbl { width: 100%; border-collapse: collapse; margin: 24px 0; }
.tbl th, .tbl td { padding: 16px 12px; text-align: left; font-size: 15px; border-bottom: 1px solid var(--ak-hairline); vertical-align: top; }
.tbl th { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.tbl td:first-child { color: var(--ak-signal); font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; }
.tbl tr:hover td { background: var(--ak-basalt-hi); }
.sec-bone .tbl th, .sec-bone .tbl td { border-bottom-color: rgba(14,15,18,0.1); }
.sec-bone .tbl tr:hover td { background: var(--ak-bone-1); }

/* Compare cards */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .compare { grid-template-columns: 1fr; } }
.compare-card {
  padding: 32px;
  background: var(--ak-basalt-hi);
  border: 1px solid var(--ak-hairline);
}
.compare-card.sig {
  background: linear-gradient(180deg, rgba(91,140,255,0.06), var(--ak-basalt-hi));
  border-color: rgba(91,140,255,0.35);
}
.compare-card h4 { margin: 0 0 14px; font-size: 22px; font-weight: 500; letter-spacing: -0.015em; }
.compare-card .lb { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 8px; }
.compare-card.sig .lb { color: var(--ak-signal); }
.compare-card ol { padding-left: 20px; margin: 12px 0 0; }
.compare-card ol li { margin-bottom: 8px; font-size: 15px; color: var(--ak-hud); }
.sec-bone .compare-card { background: var(--ak-bone-1); border-color: rgba(14,15,18,0.15); }
.sec-bone .compare-card ol li { color: rgba(14,15,18,0.66); }

/* Bottom CTA on subpage */
.subcta {
  padding: clamp(80px, 10vw, 120px) 0;
  border-top: 1px solid var(--ak-hairline);
}
.subcta-inner {
  display: grid; grid-template-columns: 1.4fr auto; gap: 40px; align-items: end;
}
@media (max-width: 800px) { .subcta-inner { grid-template-columns: 1fr; align-items: start; } }
.subcta h3 { font-size: clamp(30px, 3.8vw, 48px); font-weight: 300; letter-spacing: -0.025em; line-height: 1.05; margin: 0; max-width: 24ch; text-wrap: balance; }
.subcta h3 em { font-style: normal; color: var(--ak-signal); }

/* Related links (grid at bottom) */
.related { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1px; background: var(--ak-hairline); border: 1px solid var(--ak-hairline); }
.related a {
  background: var(--ak-basalt);
  padding: 24px 20px;
  display: block;
  transition: background .15s;
}
.related a:hover { background: var(--ak-basalt-hi); }
.related a .lb { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.related a h5 { margin: 6px 0 0; font-size: 17px; font-weight: 500; letter-spacing: -0.015em; }
.related a::after { content: "→"; float: right; color: var(--ak-signal); font-weight: 500; }

/* ─── Industry page — big scene ─── */
.industry-scene-wrap {
  position: relative;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt-hi);
  padding: 24px;
  margin-bottom: 60px;
}
.industry-scene {
  aspect-ratio: 16/9;
  min-height: 480px;
  position: relative;
}
@media (max-width: 700px) {
  .industry-scene-wrap { padding: 16px; }
  .industry-scene {
    aspect-ratio: auto;
    min-height: 0;
    height: clamp(280px, 72vw, 420px);
  }
}
.scene-chip-bar {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px;
  padding-top: 16px; border-top: 1px solid var(--ak-hairline);
}
.scene-hud-row {
  display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap;
  padding-bottom: 12px; margin-bottom: 16px;
  border-bottom: 1px solid var(--ak-hairline);
}
.scene-hud-row .l, .scene-hud-row .r { display: flex; gap: 20px; align-items: center; }
.scene-hud-row .mono {
  font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ak-hud-2);
}
.scene-hud-row .mono .sig { color: var(--ak-signal); }
@media (max-width: 500px) {
  .scene-hud-row { gap: 8px; }
  .scene-hud-row .l, .scene-hud-row .r { gap: 10px; flex-wrap: wrap; min-width: 0; }
  .scene-hud-row .mono { letter-spacing: 0.12em; overflow-wrap: anywhere; }
}

/* ─── Private 5G page — mode toggle ─── */
.mode-switch {
  display: inline-flex;
  padding: 4px;
  border: 1px solid var(--ak-hairline);
  border-radius: 4px;
  background: var(--ak-basalt);
}
.mode-switch button {
  padding: 8px 16px;
  font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ak-hud-2);
  border-radius: 2px;
  cursor: pointer;
  transition: color .18s, background .18s;
}
.mode-switch button.on { background: var(--ak-signal); color: var(--ak-basalt); }

/* ─── LTE→5G evolution slider ─── */
.evo-block { padding: 32px; border: 1px solid var(--ak-hairline); background: var(--ak-basalt-hi); }
.evo-track {
  position: relative; margin: 32px 0 20px;
  height: 4px; background: var(--ak-basalt-md); border-radius: 999px;
}
.evo-track .fill { position: absolute; inset: 0 auto 0 0; background: var(--ak-signal); border-radius: 999px; transition: width .3s; }
.evo-marks { display: grid; grid-template-columns: 1fr 1fr 1fr; margin-top: -30px; padding: 0 12px; position: relative; z-index: 2; }
.evo-marks div { position: relative; text-align: center; padding-top: 14px; cursor: pointer; }
.evo-marks div::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 14px; height: 14px; background: var(--ak-basalt); border: 1px solid var(--ak-hairline-hi); border-radius: 50%;
  transition: background .2s, border-color .2s;
}
.evo-marks div.on::before, .evo-marks div.passed::before { background: var(--ak-signal); border-color: var(--ak-signal); }
.evo-marks .k { font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ak-hud); margin-top: 12px; display: block; }
.evo-marks div.on .k { color: var(--ak-signal); }
.evo-input {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 4px; background: transparent; margin: -14px 0 0; cursor: pointer;
  position: relative; z-index: 3;
}
.evo-input::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--ak-signal); border: 3px solid var(--ak-basalt); cursor: grab; box-shadow: 0 0 0 1px var(--ak-signal), 0 0 20px rgba(91,140,255,0.35); }
.evo-input::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--ak-signal); border: 3px solid var(--ak-basalt); cursor: grab; }

.evo-content { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 32px; }
@media (max-width: 800px) { .evo-content { grid-template-columns: 1fr; gap: 20px; } }
.evo-content h4 { margin: 0 0 12px; font-size: 24px; font-weight: 400; letter-spacing: -0.02em; }
.evo-content p { margin: 0; color: var(--ak-hud); font-size: 15px; }

/* ─── Edge page — move-to-edge experience ─── */
.edge-block { position: relative; padding: 32px; border: 1px solid var(--ak-hairline); background: var(--ak-basalt-hi); }
.edge-viz { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 24px 0; }
.edge-lane {
  position: relative;
  height: 84px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt);
  display: flex; align-items: center; padding: 0 12px;
  overflow: hidden;
}
.edge-lane .lbl { position: absolute; top: 6px; left: 12px; font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.edge-node {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  width: 60px; height: 60px;
  background: var(--ak-basalt-hi);
  border: 1px solid var(--ak-hairline-hi);
  border-radius: 4px;
  display: grid; place-items: center;
  font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ak-hud);
  transition: left .8s cubic-bezier(.7,.05,.3,.95), border-color .3s, color .3s;
}
.edge-node.dev { left: 12px; }
.edge-node.ran { left: 20%; }
.edge-node.core { left: 40%; }
.edge-node.edge { left: 60%; border-color: var(--ak-signal); color: var(--ak-signal); }
.edge-node.cloud { left: calc(100% - 72px); }
.edge-app {
  position: absolute; top: 50%; transform: translate(-50%, -50%);
  width: 76px; height: 60px;
  background: var(--ak-signal); color: var(--ak-basalt);
  border-radius: 4px;
  display: grid; place-items: center;
  font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  transition: left .9s cubic-bezier(.7,.05,.3,.95);
  z-index: 2;
  box-shadow: 0 0 24px rgba(91,140,255,0.35);
}
.edge-lane.cloud-mode .edge-app { left: calc(100% - 46px); }
.edge-lane.edge-mode .edge-app { left: 66%; }
.edge-lane .path {
  position: absolute; top: 50%; height: 1px; background: var(--ak-signal); left: 42px; right: 46px;
  transition: right .9s cubic-bezier(.7,.05,.3,.95);
}
.edge-lane.edge-mode .path { right: 40%; }
.edge-lane .pack {
  position: absolute; top: calc(50% - 2px); width: 4px; height: 4px; background: var(--ak-signal-hi); border-radius: 50%;
  animation: packet-run 2.4s linear infinite;
  box-shadow: 0 0 10px var(--ak-signal-hi);
}
.edge-lane.edge-mode .pack { animation-duration: 1.4s; }
@keyframes packet-run {
  0% { left: 42px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: calc(100% - 46px); opacity: 0; }
}
.edge-lane.edge-mode .pack {
  animation-name: packet-run-short;
}
@keyframes packet-run-short {
  0% { left: 42px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: 62%; opacity: 0; }
}

/* ─── Akampio Control · dashboard HUD ─── */
.hud-dash { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; padding: 24px; border: 1px solid var(--ak-hairline); background: var(--ak-basalt-hi); }
@media (max-width: 900px) { .hud-dash { grid-template-columns: 1fr; } }
.hud-panel { border: 1px solid var(--ak-hairline); padding: 20px; background: var(--ak-basalt); }
.hud-panel .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; }
.hud-panel h5 { margin: 0 0 16px; font-size: 15px; font-weight: 500; }
.rings { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.ring { position: relative; aspect-ratio: 1; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring .val { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; }
.ring .val .n { font-size: 22px; font-weight: 300; letter-spacing: -0.02em; color: var(--ak-signal); }
.ring .val .u { font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ak-hud-2); }

.feed { display: grid; gap: 6px; max-height: 260px; overflow: hidden; }
.feed-row {
  display: grid; grid-template-columns: 60px 60px 1fr;
  gap: 10px; padding: 10px 8px;
  border-top: 1px solid var(--ak-hairline);
  font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.06em;
}
.feed-row .t { color: var(--ak-hud-2); }
.feed-row .l { color: var(--ak-hud); }
.feed-row .l.ok { color: var(--ak-signal); }
.feed-row .l.warn { color: var(--ak-ember); }
.feed-row .m { color: var(--ak-bone); }

.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat-cell { padding: 14px; border: 1px solid var(--ak-hairline); background: var(--ak-basalt); }
.stat-cell .k { font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.stat-cell .v { font-size: 22px; font-weight: 300; letter-spacing: -0.02em; color: var(--ak-bone); margin-top: 4px; }
.stat-cell .v .sig { color: var(--ak-signal); }

.spark-bar { height: 4px; background: var(--ak-basalt-md); border-radius: 999px; margin-top: 8px; overflow: hidden; }
.spark-bar > div { height: 100%; background: var(--ak-signal); border-radius: 999px; }

/* ─── Security page journey ─── */
.sec-flow {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 8px;
  position: relative; padding-top: 30px;
}
.sec-flow::before {
  content: ""; position: absolute; top: 40px; left: 40px; right: 40px;
  height: 1px; background: var(--ak-hairline);
}
@media (max-width: 900px) { .sec-flow { grid-template-columns: 1fr 1fr; } .sec-flow::before { display: none; } }
@media (max-width: 500px) { .sec-flow { grid-template-columns: 1fr; } }
.sf {
  padding: 60px 12px 20px;
  position: relative;
  cursor: pointer;
  transition: background .2s;
}
.sf::before {
  content: attr(data-n);
  position: absolute; top: 20px; left: 50%; transform: translateX(-50%);
  width: 40px; height: 40px; border: 1px solid var(--ak-hairline);
  border-radius: 50%; background: var(--ak-basalt);
  display: grid; place-items: center;
  font-family: var(--ak-font-mono); font-size: 11px; color: var(--ak-hud);
  transition: border-color .3s, background .3s, color .3s;
  z-index: 2;
}
.sf.on::before, .sf:hover::before { border-color: var(--ak-signal); background: var(--ak-signal); color: var(--ak-basalt); box-shadow: 0 0 0 6px rgba(91,140,255,0.15); }
.sf h5 { margin: 0 0 4px; font-size: 15px; font-weight: 500; letter-spacing: -0.01em; text-align: center; }
.sf p { margin: 0; font-size: 12px; color: var(--ak-hud); text-align: center; }

/* ─── Why Akampio approach comparison ─── */
.approach { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 800px) { .approach { grid-template-columns: 1fr; } }
.approach-col {
  padding: 32px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt-hi);
}
.approach-col.sig {
  border-color: rgba(91,140,255,0.4);
  background: linear-gradient(180deg, rgba(91,140,255,0.05), var(--ak-basalt-hi));
}
.approach-col .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 12px; }
.approach-col.sig .k { color: var(--ak-signal); }
.approach-col h4 { margin: 0 0 20px; font-size: 22px; font-weight: 500; letter-spacing: -0.015em; }
.approach-col ol {
  margin: 0; padding: 0; list-style: none;
  display: grid; gap: 6px;
}
.approach-col ol li {
  padding: 12px 14px;
  border: 1px solid var(--ak-hairline);
  border-left: 2px solid var(--ak-hairline);
  background: var(--ak-basalt);
  font-size: 15px;
  color: var(--ak-hud);
  position: relative;
}
.approach-col ol li::before {
  content: counter(li);
  counter-increment: li;
  font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.2em;
  color: var(--ak-hud-2);
  margin-right: 12px;
}
.approach-col ol { counter-reset: li; }
.approach-col.sig ol li { border-left-color: var(--ak-signal); }
.approach-col.sig ol li::before { color: var(--ak-signal); }
.approach-col.sig ol li { color: var(--ak-bone); }

/* ── ROI simulator ── */
.roi-block {
  padding: 32px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt-hi);
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
}
@media (max-width: 900px) { .roi-block { grid-template-columns: 1fr; gap: 24px; } }
.roi-inputs { display: grid; gap: 18px; }
.roi-input .head { display: flex; justify-content: space-between; align-items: baseline; }
.roi-input .name { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud); }
.roi-input .val { font-family: var(--ak-font-mono); font-size: 12px; color: var(--ak-signal); }
.roi-input input[type="range"] {
  -webkit-appearance: none; width: 100%; height: 2px; background: var(--ak-basalt-md); margin-top: 10px;
}
.roi-input input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--ak-signal); cursor: pointer; }
.roi-input input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border: 0; border-radius: 50%; background: var(--ak-signal); cursor: pointer; }

.roi-output { }
.roi-output .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-hud-2); margin-bottom: 12px; }
.roi-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.roi-summary .c { padding: 14px; border: 1px solid var(--ak-hairline); }
.roi-summary .c .lb { font-family: var(--ak-font-mono); font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); }
.roi-summary .c .n { font-size: 24px; font-weight: 300; letter-spacing: -0.02em; margin-top: 6px; }
.roi-summary .c.sig .n { color: var(--ak-signal); }
.roi-bar { display: grid; grid-template-columns: 120px 1fr; gap: 12px; align-items: center; margin-top: 12px; }
.roi-bar .l { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.16em; color: var(--ak-hud); text-transform: uppercase; }
.roi-bar .t { position: relative; height: 6px; background: var(--ak-basalt-md); border-radius: 999px; overflow: hidden; }
.roi-bar .t .f { position: absolute; inset: 0 auto 0 0; background: var(--ak-signal); transition: width .4s; }
.roi-bar.cost .t .f { background: var(--ak-basalt-4); }

/* ── Scenario selector (P5G vs Wi-Fi) ── */
.scenario-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 24px; }
.scenario-tabs button {
  padding: 12px 18px; border: 1px solid var(--ak-hairline); border-radius: 999px;
  font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ak-hud); background: transparent; cursor: pointer;
  transition: color .18s, background .18s, border-color .18s;
}
.scenario-tabs button:hover { border-color: var(--ak-signal); color: var(--ak-signal); }
.scenario-tabs button.on { background: var(--ak-signal); color: var(--ak-basalt); border-color: var(--ak-signal); }

.heat-tbl { width: 100%; border-collapse: collapse; border: 1px solid var(--ak-hairline); }
.heat-tbl th, .heat-tbl td { padding: 14px; text-align: left; border-right: 1px solid var(--ak-hairline); border-bottom: 1px solid var(--ak-hairline); }
.heat-tbl th { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); background: var(--ak-basalt); }
.heat-tbl td { font-size: 14px; color: var(--ak-hud); }
.heat-tbl td.high { background: rgba(91,140,255,0.18); color: var(--ak-bone); }
.heat-tbl td.med { background: rgba(91,140,255,0.06); color: var(--ak-hud); }
.heat-tbl td.low { background: transparent; color: var(--ak-hud-2); }
.heat-tbl td strong { color: var(--ak-bone); font-weight: 500; }

/* ── FAQ ── */
.faq { display: grid; gap: 1px; background: var(--ak-hairline); border-top: 1px solid var(--ak-hairline); border-bottom: 1px solid var(--ak-hairline); }
.faq-item { background: var(--ak-basalt); }
.sec-bone .faq-item { background: var(--ak-bone); }
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 8px; cursor: pointer;
  font-size: 18px; font-weight: 500; letter-spacing: -0.015em;
  gap: 20px;
  list-style: none;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::after {
  content: "+"; font-family: var(--ak-font-mono); font-size: 22px; color: var(--ak-signal);
}
.faq-item[open] .faq-q::after { content: "−"; }
.faq-item p { padding: 0 8px 24px; margin: 0; color: var(--ak-hud); font-size: 15px; max-width: 72ch; }
.sec-bone .faq-item p { color: rgba(14,15,18,0.66); }

/* ── Glossary ── */
.glossary-list { display: grid; gap: 1px; background: var(--ak-hairline); border-top: 1px solid var(--ak-hairline); border-bottom: 1px solid var(--ak-hairline); }
.gterm { background: var(--ak-basalt); display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: 20px 8px; align-items: baseline; }
.gterm dt { font-family: var(--ak-font-mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ak-signal); }
.gterm dd { margin: 0; color: var(--ak-hud); font-size: 15px; }
@media (max-width: 600px) { .gterm { grid-template-columns: 1fr; gap: 4px; } }

/* ── Contact — discovery builder ── */
.discovery {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px;
  padding: clamp(40px, 6vw, 80px) 0;
}
@media (max-width: 900px) { .discovery { grid-template-columns: 1fr; } }
.discovery-viz {
  position: sticky; top: 100px;
  border: 1px solid var(--ak-hairline); background: var(--ak-basalt-hi);
  padding: 24px;
  min-height: 480px;
  align-self: start;
}
.discovery-viz .scene {
  aspect-ratio: 1;
  min-height: 380px;
}
.discovery-viz h5 { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ak-hud-2); margin: 0 0 12px; }
.discovery-viz .summary { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--ak-hairline); display: grid; gap: 10px; }
.discovery-viz .summary .row { display: grid; grid-template-columns: 100px 1fr; gap: 12px; font-family: var(--ak-font-mono); font-size: 11px; letter-spacing: 0.1em; }
.discovery-viz .summary .row .k { color: var(--ak-hud-2); text-transform: uppercase; letter-spacing: 0.18em; }
.discovery-viz .summary .row .v { color: var(--ak-bone); }
.discovery-viz .summary .row .v.empty { color: var(--ak-hud-3); }

.discovery-form {
  padding: 32px;
  border: 1px solid var(--ak-hairline);
  background: var(--ak-basalt-hi);
}
@media (max-width: 700px) {
  .discovery { gap: 24px; }
  .discovery-viz {
    position: relative;
    top: auto;
    padding: 16px;
    min-height: 0;
  }
  .discovery-viz .scene {
    aspect-ratio: auto;
    min-height: 0;
    height: clamp(240px, 74vw, 360px);
  }
  .discovery-viz .summary .row {
    grid-template-columns: 1fr;
    gap: 2px;
    overflow-wrap: anywhere;
  }
  .discovery-form { padding: 20px; }
  .d-step h3 { font-size: 22px; }
  .d-nav { gap: 16px; flex-wrap: wrap; }
}
.d-step { display: none; }
.d-step.on { display: block; }
.d-step .k { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ak-signal); margin-bottom: 12px; }
.d-step h3 { margin: 0 0 24px; font-size: 26px; font-weight: 400; letter-spacing: -0.02em; }
.d-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
@media (max-width: 500px) { .d-options { grid-template-columns: 1fr; } }
.d-option {
  padding: 16px;
  border: 1px solid var(--ak-hairline); background: var(--ak-basalt);
  text-align: left;
  cursor: pointer;
  transition: border-color .18s, background .18s;
  display: flex; flex-direction: column; gap: 4px;
}
.d-option:hover { border-color: var(--ak-signal); }
.d-option.on { border-color: var(--ak-signal); background: rgba(91,140,255,0.06); }
.d-option .n { font-size: 15px; color: var(--ak-bone); font-weight: 500; letter-spacing: -0.015em; }
.d-option.on .n { color: var(--ak-signal); }
.d-option small { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ak-hud-2); }
.d-field { display: grid; gap: 8px; margin-bottom: 16px; }
.d-field label { font-family: var(--ak-font-mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ak-hud-2); }
.d-field input, .d-field textarea, .d-field select {
  padding: 12px 14px;
  background: var(--ak-basalt);
  border: 1px solid var(--ak-hairline);
  color: var(--ak-bone);
  font: inherit;
  border-radius: 2px;
}
.d-field input:focus, .d-field textarea:focus, .d-field select:focus { outline: none; border-color: var(--ak-signal); }
.d-field textarea { min-height: 100px; resize: vertical; font-family: inherit; }
.d-hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.d-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--ak-hairline); }
.d-submit-status {
  min-height: 20px;
  margin: 14px 0 0;
  color: var(--ak-hud-2);
  font-family: var(--ak-font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.d-submit-status.error { color: var(--ak-ember); }
.d-progress { display: flex; gap: 4px; }
.d-progress span { width: 20px; height: 3px; background: var(--ak-basalt-md); }
.d-progress span.on { background: var(--ak-signal); }