/* ==========================================================================
   DW WiFi · about.css · the About page (about-us)
   ABOUT piece owns this file. Shell tokens and classes come from site.css.
   Sections: 1 hero + survey shot  2 facts strip  3 Wi-Fi specialists
             4 sector index  5 CabinetPro  6 Cambium stage
             7 innovative solutions  8 closing band  9 reduced motion
   ========================================================================== */


/* Section rhythm is the shell's --section-y, the same as every other page. */


/* 1 Hero ------------------------------------------------------------------- */
.ab-hero {
  padding-top: var(--hero-top);
}
.ab-hero-head {
  display: grid;
  gap: 1.1rem 4rem;
  margin-bottom: clamp(1.75rem, 1rem + 2.6vw, 3.25rem);
}
@media (min-width: 900px) {
  .ab-hero-head { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: start; }
}
.ab-hero-lead {
  max-width: 34em;
  font-size: clamp(1.0625rem, 1rem + .35vw, 1.25rem);
  line-height: 1.5;
  color: var(--slate);
}
.ab-hero-intro .btn-row { margin-top: 1.5rem; }
.ab-hero-intro .btn-ghost .icon { color: var(--lime-ink); }
@media (max-width: 479px) {
  .ab-hero-intro .btn-row { gap: .5rem; }
  .ab-hero-intro .btn-row > .btn { flex: 1 1 auto; padding-inline: .9rem; }
}

/* The real survey photo. Each <source> is cut to the frame's exact ratio, so
   the access-point marker can sit on the kit in percentages with no drift. */
.ab-shot { margin: 0; }
.ab-shot-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 2 / 1;
  border-radius: var(--radius-xl);
  background: var(--navy-900);
  isolation: isolate;
}
.ab-shot-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 27, 49, .16) 0%, rgba(7, 27, 49, 0) 26%, rgba(7, 27, 49, 0) 70%, rgba(7, 27, 49, .34) 100%);
}
.ab-shot-layer {
  --ap-x: 43.95%;
  --ap-y: 41.8%;
  --k: 1;
  position: absolute;
  inset: 0;
  transform: translate3d(0, var(--shift, 0px), 0) scale(1.08);
  transform-origin: 50% 50%;
}
.ab-shot-layer picture, .ab-shot-layer img { width: 100%; height: 100%; }
.ab-shot-layer img { object-fit: cover; }
@media (max-width: 699px) {
  .ab-shot-frame { aspect-ratio: 4 / 5; border-radius: var(--radius-lg); }
  .ab-shot-layer { --ap-x: 50%; --ap-y: 45.5%; --k: .72; }
}

/* Signal rings on the survey access point: the logo's five attenuation steps
   (100 / 80 / 60 / 40 / 20 percent), drawn outward three times on load, then
   at rest. Rest state is the full set, fully visible. */
.ab-ping {
  position: absolute;
  left: var(--ap-x);
  top: var(--ap-y);
  z-index: 1;
  width: 0;
  height: 0;
  pointer-events: none;
}
.ab-ping i {
  position: absolute;
  left: 0;
  top: 0;
  width: calc(var(--d) * var(--k));
  height: calc(var(--d) * var(--k));
  margin: calc(var(--d) * var(--k) / -2) 0 0 calc(var(--d) * var(--k) / -2);
  border-radius: 50%;
}
.ab-ping i {
  border: 2.5px solid var(--lime-500);
  opacity: var(--o);
  box-shadow: 0 0 0 1px rgba(7, 27, 49, .3), inset 0 0 0 1px rgba(7, 27, 49, .3), 0 0 14px rgba(136, 174, 62, .35);
}
.ab-ping i:nth-child(1) { --d: 40px;  --o: 1;   --n: 0; }
.ab-ping i:nth-child(2) { --d: 76px;  --o: .8;  --n: 1; }
.ab-ping i:nth-child(3) { --d: 116px; --o: .6;  --n: 2; }
.ab-ping i:nth-child(4) { --d: 160px; --o: .45; --n: 3; }
.ab-ping i:nth-child(5) { --d: 208px; --o: .3;  --n: 4; }
.ab-tag {
  position: absolute;
  left: calc(var(--ap-x) + 7.25rem);
  top: var(--ap-y);
  z-index: 1;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .4rem .8rem .4rem .65rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .95);
  color: var(--navy-900);
  font-size: .8125rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 6px 20px -6px rgba(7, 27, 49, .55);
}
.ab-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime-500);
  box-shadow: 0 0 0 3px var(--arc-20);
}
@media (max-width: 699px) {
  .ab-tag { left: var(--ap-x); top: calc(var(--ap-y) + 5.4rem); transform: translate(-50%, 0); }
}
@media (prefers-reduced-motion: no-preference) {
  .ab-ping i {
    animation: ab-ring 1.35s var(--ease-out) calc(.35s + var(--n) * 90ms) 3 both;
  }
  .ab-tag { animation: ab-tag .6s var(--ease-out) .9s both; }
}
@keyframes ab-ring {
  0% { transform: scale(.3); opacity: 0; }
  30% { opacity: var(--o); }
  100% { transform: scale(1); opacity: var(--o); }
}
@keyframes ab-tag { from { opacity: 0; } to { opacity: 1; } }

.ab-shot-cap {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  margin-top: .9rem;
  font-size: .875rem;
  line-height: 1.5;
  color: var(--slate);
}
.ab-shot-cap::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime-ink);
  transform: translateY(-1px);
}


/* 2 Facts strip: four real figures, each with a plain caption ------------- */
.ab-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: clamp(2.5rem, 1.6rem + 2.8vw, 4rem) 0 0;
  border-top: 1px solid var(--rule-strong);
}
.ab-fact { min-width: 0; padding: clamp(1.5rem, 1.2rem + .8vw, 2rem) 1.75rem 0 0; }
.ab-fact + .ab-fact { padding-left: 1.75rem; border-left: 1px solid var(--rule-strong); }
.ab-fact dt {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 1.9rem + 2.9vw, 4.25rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.035em;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--navy-900);
}
.ab-fig-u { color: var(--lime-ink); }
.ab-fact dd {
  margin: .8rem 0 0;
  max-width: 26ch;
  font-size: var(--fs-body);
  font-weight: 500;
  line-height: 1.45;
  color: var(--navy-800);
}
@media (max-width: 899px) {
  .ab-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ab-fact { padding: 1.4rem 1rem 1.5rem 0; }
  .ab-fact + .ab-fact { padding-left: 0; border-left: 0; }
  .ab-fact:nth-child(even) { padding-left: 1.1rem; border-left: 1px solid var(--rule-strong); }
  .ab-fact:nth-child(n+3) { border-top: 1px solid var(--rule-strong); }
  .ab-fact dd { margin-top: .6rem; }
}
@media (max-width: 899px) and (min-width: 600px) {
  .ab-fact dd { max-width: 30ch; }
}
@media (max-width: 599px) {
  .ab-fact dt { font-size: clamp(2.375rem, 1.6rem + 3.6vw, 2.75rem); }
  .ab-fact dd { font-size: .9375rem; line-height: 1.42; }
}


/* 3 Wi-Fi specialists ------------------------------------------------------- */
.ab-spec-head {
  display: grid;
  gap: 1rem 4rem;
  margin-bottom: clamp(2.25rem, 1.4rem + 3vw, 4.5rem);
}
@media (min-width: 900px) {
  .ab-spec-head { grid-template-columns: minmax(0, .72fr) minmax(0, 2fr); align-items: start; }
}
.ab-statement {
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 1rem + 1.45vw, 2.375rem);
  font-weight: 500;
  line-height: 1.26;
  letter-spacing: -0.016em;
  color: var(--navy-900);
  max-width: 30em;
}
.ab-statement em { font-style: normal; color: var(--lime-ink); }
.ab-lanes {
  display: grid;
  gap: clamp(1rem, .6rem + 1.6vw, 2rem);
}
@media (min-width: 760px) {
  .ab-lanes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.ab-lane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--paper);
  --link-line: var(--lime-ink-deep);
}
.ab-lane-media {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--navy-900);
}
.ab-lane-media picture, .ab-lane-media img { width: 100%; height: 100%; }
.ab-lane-media img { object-fit: cover; }
.ab-lane-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: .75rem;
  padding: clamp(1.25rem, .85rem + 1.6vw, 2.25rem);
}
.ab-lane-body h3 { font-size: clamp(1.25rem, 1.08rem + .65vw, 1.625rem); line-height: 1.2; letter-spacing: -0.012em; }
.ab-lane-body p { max-width: 44ch; color: var(--slate); }
.ab-lane-body .link-arrow { margin-top: auto; align-self: flex-start; }
@media (max-width: 599px) {
  .ab-lane-media { aspect-ratio: 2 / 1; }
}


/* 4 Sectors: a typographic index, one sourced proof line per sector --------- */
.ab-env-head {
  display: grid;
  gap: 1rem 4rem;
  margin-bottom: clamp(2rem, 1.2rem + 2.8vw, 4rem);
}
@media (min-width: 900px) {
  .ab-env-head { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: end; }
}
.ab-env-head h2 { max-width: 14em; }
.ab-env-head .lead { margin: 0; }
.ab-sectors {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line-strong);
}
.ab-sector {
  display: grid;
  gap: .45rem 2.5rem;
  align-items: center;
  min-height: clamp(4.5rem, 3.6rem + 2.4vw, 6rem);
  padding: clamp(1rem, .8rem + .55vw, 1.35rem) 0;
  border-top: 1px solid var(--line-strong);
}
@media (min-width: 900px) {
  .ab-sector { grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr) 12rem; }
}
.ab-sector-name {
  font-size: clamp(1.3125rem, 1.08rem + .95vw, 1.875rem);
  font-weight: 650;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy-900);
}
.ab-sector-body p {
  max-width: 46ch;
  font-size: var(--fs-body);
  line-height: 1.55;
  color: var(--slate);
}
.ab-sector-act { justify-self: start; }
@media (min-width: 900px) {
  .ab-sector-act { justify-self: end; }
}
/* The one named client: the real CabinetPro logo, linking to Phil's words. */
.ab-sector-by {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  min-height: 44px;
  color: var(--navy-900);
  text-decoration: none;
}
.ab-sector-by .logo-chip {
  padding: .3rem .6rem;
  border: 1px solid var(--line-strong);
  transition: border-color var(--dur-fast) ease;
}
.ab-sector-by .logo-chip img { height: 30px; }
.ab-sector-by:hover .logo-chip { border-color: var(--navy-900); }
.ab-sector-next .ab-sector-name { color: var(--lime-ink-deep); }
@media (max-width: 899px) {
  .ab-sector-act { margin-top: .5rem; }
}
@media (max-width: 479px) {
  .ab-sector-next .btn { width: 100%; }
}


/* 5 CabinetPro --------------------------------------------------------------- */
.ab-quote-grid { display: grid; gap: 2.25rem 5rem; }
@media (min-width: 960px) {
  .ab-quote-grid { grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr); align-items: end; }
}
.ab-quote-fig { margin: 0; }
.ab-quote-mark { width: clamp(40px, 1.8rem + 1.6vw, 60px); height: auto; fill: var(--lime-500); }
.ab-quote-text { margin: 1.4rem 0 0; }
.ab-quote-text p {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.08rem + 1.75vw, 2.625rem);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.018em;
  color: var(--navy-900);
  text-wrap: pretty;
}
.ab-quote-by {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1rem;
  margin-top: clamp(1.5rem, 1rem + 1.4vw, 2.25rem);
}
.ab-quote-by .logo-chip { border: 1px solid var(--rule-strong); }
.ab-quote-by strong { display: block; font-weight: 650; line-height: 1.3; }
.ab-quote-org { display: block; font-size: .9375rem; line-height: 1.4; color: var(--slate); }
.ab-quote-ctx {
  padding: clamp(1.25rem, .9rem + 1.2vw, 2rem);
  border-radius: var(--radius-lg);
  background: var(--paper);
  --link-line: var(--lime-ink-deep);
}
.ab-quote-ctx p { color: var(--slate); }
.ab-quote-ctx .link-arrow { margin-top: .75rem; }


/* 6 Cambium stage ------------------------------------------------------------ */
.ab-cn-grid { display: grid; gap: 3rem 4.5rem; align-items: center; }
@media (min-width: 1000px) {
  .ab-cn-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); }
}
.ab-cn-logo { width: auto; height: 60px; }
.ab-cn-copy h2 { margin-top: clamp(1.75rem, 1.2rem + 1.4vw, 2.5rem); }
.ab-cn-lead { margin-top: 1.1rem; font-size: var(--fs-lead); line-height: 1.5; color: var(--white); max-width: 34em; }
.ab-cn-text { margin-top: .8rem; color: var(--fog); max-width: 34em; }
.ab-models {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .5rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}
.ab-models a {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: .1rem;
  min-height: 64px;
  padding: .7rem 1rem;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .04);
  color: var(--white);
  text-decoration: none;
  transition: border-color var(--dur-fast) ease, background-color var(--dur-fast) ease;
}
.ab-models a:hover { border-color: var(--lime-500); background: rgba(136, 174, 62, .08); }
.ab-models .readout { font-size: 1rem; line-height: 1.3; }
.ab-model-k { font-size: .8125rem; line-height: 1.35; color: var(--fog); }
.ab-cn-actions { margin-top: 2rem; gap: .5rem 1.5rem; }
.ab-cn-stage {
  position: relative;
  display: grid;
  place-items: center;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-xl);
  background: radial-gradient(120% 90% at 50% 38%, #164571 0%, var(--navy-900) 42%, #081F38 72%, #05152A 100%);
  isolation: isolate;
}
.ab-cn-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: repeating-radial-gradient(circle at 50% 50%, rgba(136, 174, 62, .16) 0 1px, transparent 1.5px 46px);
  -webkit-mask-image: radial-gradient(closest-side at 50% 50%, #000 0%, rgba(0, 0, 0, .55) 55%, transparent 100%);
  mask-image: radial-gradient(closest-side at 50% 50%, #000 0%, rgba(0, 0, 0, .55) 55%, transparent 100%);
}
.ab-cn-glow {
  position: absolute;
  left: 50%;
  top: 60%;
  z-index: -1;
  width: 66%;
  height: 30%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(136, 174, 62, .5), rgba(136, 174, 62, .12) 60%, rgba(136, 174, 62, 0));
}
.ab-cn-ap {
  width: 78%;
  height: auto;
  margin-top: -4%;
  filter: drop-shadow(0 28px 34px rgba(0, 0, 0, .5));
}
.ab-cn-cap {
  position: absolute;
  left: clamp(1rem, .7rem + 1vw, 1.5rem);
  right: clamp(1rem, .7rem + 1vw, 1.5rem);
  bottom: clamp(.9rem, .6rem + 1vw, 1.35rem);
  font-size: .8125rem;
  line-height: 1.45;
  color: var(--fog);
}
.ab-cn-cap .readout { margin-right: .35rem; color: var(--white); }


/* 7 Innovative solutions ----------------------------------------------------- */
.ab-acc-grid { display: grid; gap: 2.5rem 5rem; align-items: center; }
@media (min-width: 960px) {
  .ab-acc-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); }
}
.ab-acc-shot { margin: 0; }
.ab-acc-shot img { width: 100%; height: auto; border-radius: var(--radius-xl); background: var(--paper); }
.ab-acc-shot figcaption { margin-top: .85rem; font-size: .875rem; line-height: 1.5; color: var(--slate); }
.ab-acc-lead { margin-top: 1.1rem; font-size: var(--fs-lead); line-height: 1.5; color: var(--navy-900); max-width: 34em; }
.ab-acc-copy > p:not(.ab-acc-lead) { margin-top: .8rem; color: var(--slate); max-width: 38em; }
.ab-parts {
  margin: 1.75rem 0 2rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule-strong);
}
.ab-parts li {
  display: grid;
  grid-template-columns: 7.25rem minmax(0, 1fr);
  gap: 1rem;
  align-items: baseline;
  padding: .85rem 0;
  border-bottom: 1px solid var(--rule);
}
.ab-parts .readout { font-size: .9375rem; color: var(--navy-900); }
.ab-parts li > span:last-child { color: var(--slate); }


/* 8 Closing band (the site's shared navy band, landline first) ------------ */
.ab-end { padding-bottom: calc(var(--section-y) * .72); }
.ab-cta {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(2rem, 1rem + 4vw, 4.5rem);
}
.ab-cta-loops {
  position: absolute;
  right: -4%;
  top: 50%;
  z-index: -1;
  width: min(46%, 30rem);
  height: auto;
  opacity: .16;
  transform: translateY(-50%);
  pointer-events: none;
}
.ab-cta .cta-band-copy p { max-width: 48ch; color: var(--fog); }
.ab-cta .link.readout { font-size: 1em; white-space: nowrap; }
@media (max-width: 899px) {
  .ab-cta-loops { width: 70%; right: -22%; top: 0; transform: none; opacity: .1; }
}


/* 9 Reduced motion ----------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .ab-shot-layer { transform: scale(1.08) !important; }
}