/* ============================================================
   IoT Mobile App Development - /service/iot-app-development
   Prefix: io-   Palette: teal ink, signal teal, amber "live" LED.
   ============================================================ */

.io-page {
  --io-ink: #072b30;
  --io-ink-2: #0c3b41;
  --io-teal: #00b0b1;
  --io-teal-dk: #008586;
  --io-teal-lt: #8fe3df;
  --io-teal-bg: #e2f5f4;
  --io-mist: #f0f7f7;
  --io-line: #d4e6e6;
  --io-amber: #ffb020;
  --io-text: #334f53;
  --io-muted: #5f777a;
  --io-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --io-ease-io: cubic-bezier(0.65, 0, 0.35, 1);
  --io-display: "Archivo", "Figtree", sans-serif;
  --io-body: "Figtree", system-ui, sans-serif;
  --io-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --io-pcb: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240' fill='none' stroke='%2300b0b1' stroke-width='1.2' stroke-linecap='round'%3E%3Cpath d='M0 36h52l18 18h50l14-14h34M150 40V0M120 54v46l20 20h56l22 22v32M196 120h44M0 150h40l24-24h36l16 16v40l-18 18v40M100 126V96M64 126 40 102V60M180 240v-34l16-16h20l24-24M0 210h28l20 20v10M240 70h-34l-16 16v20'/%3E%3Cg fill='%2300b0b1'%3E%3Ccircle cx='52' cy='36' r='2.5'/%3E%3Ccircle cx='134' cy='40' r='2.5'/%3E%3Ccircle cx='196' cy='120' r='2.5'/%3E%3Ccircle cx='100' cy='96' r='2.5'/%3E%3Ccircle cx='40' cy='60' r='2.5'/%3E%3Ccircle cx='180' cy='206' r='2.5'/%3E%3Ccircle cx='48' cy='230' r='2.5'/%3E%3Ccircle cx='190' cy='106' r='2.5'/%3E%3C/g%3E%3Ccircle cx='150' cy='40' r='4'/%3E%3Ccircle cx='218' cy='164' r='4'/%3E%3Ccircle cx='98' cy='222' r='4'/%3E%3C/svg%3E");

  font-family: var(--io-body);
  color: var(--io-text);
  background: #fff;
  overflow-x: clip;
}

/* style.css:2845 forces Gabarito !important on headings and p */
.io-page :is(h1, h2, h3, h4) {
  font-family: var(--io-display) !important;
  font-stretch: 112%;
  color: var(--io-ink);
  letter-spacing: -0.01em;
  margin: 0;
}

.io-page :is(p, li, dd, dt, button, summary) {
  font-family: var(--io-body) !important;
}

.io-page p {
  margin: 0;
  line-height: 1.7;
}

.io-page img {
  max-width: 100%;
}

.io-page section {
  position: relative;
}

/* ---------- shared heads ---------- */
.io-head {
  max-width: 820px;
  margin: 0 auto 56px;
  text-align: center;
}

.io-head--split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  max-width: none;
  text-align: left;
}

.io-title {
  font-size: clamp(28px, 3.3vw, 44px);
  font-weight: 700;
  line-height: 1.12;
}

/* stacked heads only; split heads are spaced by their grid gap */
.io-head:not(.io-head--split) .io-title + .io-lead {
  margin-top: 18px;
}

.io-lead {
  font-size: 17px;
  color: var(--io-muted);
}

.io-lead strong {
  color: var(--io-ink);
  font-weight: 600;
}

/* ---------- LED dot ---------- */
.io-led {
  position: relative;
  display: inline-block;
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--io-teal);
  box-shadow: 0 0 0 3px rgba(0, 176, 177, 0.18);
}

.io-led--live {
  background: var(--io-amber);
  box-shadow: 0 0 0 3px rgba(255, 176, 32, 0.22);
  animation: io-blink 1.6s steps(1) infinite;
}

@keyframes io-blink {
  50% {
    opacity: 0.35;
  }
}

/* shared keyframes - keep them here, not inside a section block */
@keyframes io-float {
  50% {
    translate: 0 -12px;
  }
}

/* every dashed flow must use a dasharray summing to 18px, or the loop visibly jumps */
@keyframes io-dash {
  to {
    stroke-dashoffset: -18;
  }
}

/* shared by the band ripple, final waves and the compliance radar */
@keyframes io-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes io-ping {
  from {
    transform: scale(1);
    opacity: 0.8;
  }
  to {
    transform: scale(1.9);
    opacity: 0;
  }
}

/* ---------- reveal: animation, not transition, so delays never touch hovers ---------- */
:where(.io-anim) .io-reveal {
  opacity: 0;
}

:where(.io-anim) .io-reveal.is-in {
  animation: io-rise 0.85s var(--io-ease) both;
}

@keyframes io-rise {
  from {
    opacity: 0;
    translate: 0 28px;
  }
  to {
    opacity: 1;
    translate: 0 0;
  }
}

/* ---------- pill button: arrow disc slides to the left on hover (CSS only) ---------- */
.io-btn {
  --io-btn-icon-w: 44px;
  --io-btn-gap: 14px;
  --io-btn-pad: 26px;
  --io-btn-in: 7px;

  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: calc(var(--io-btn-icon-w) + 2 * var(--io-btn-in));
  max-width: 100%;
  padding: 0 calc(var(--io-btn-icon-w) + var(--io-btn-in) + var(--io-btn-gap)) 0 var(--io-btn-pad);
  border-radius: 999px;
  background: var(--io-teal);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(0, 133, 134, 0.32);
  transition:
    box-shadow 0.25s ease,
    transform 0.25s ease,
    padding 0.5s var(--io-ease-io);
}

.io-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  animation: io-sheen 4.5s ease-in-out infinite;
}

@keyframes io-sheen {
  0%,
  60% {
    transform: translateX(-120%);
  }
  100% {
    transform: translateX(120%);
  }
}

.io-btn__label {
  min-width: 0;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.3;
}

.io-btn__icon {
  position: absolute;
  top: var(--io-btn-in);
  right: var(--io-btn-in);
  display: grid;
  place-items: center;
  width: var(--io-btn-icon-w);
  height: var(--io-btn-icon-w);
  border-radius: 50%;
  background: #fff;
  color: var(--io-teal-dk);
  transition: right 0.5s var(--io-ease-io);
}

.io-btn__icon svg {
  width: 18px;
  height: 18px;
  transform: rotate(-45deg);
  transition: transform 0.45s var(--io-ease-io);
}

.io-btn:hover,
.io-btn:focus-visible {
  padding-left: calc(var(--io-btn-icon-w) + var(--io-btn-in) + var(--io-btn-gap));
  padding-right: var(--io-btn-pad);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0, 133, 134, 0.42);
}

.io-btn:hover .io-btn__icon,
.io-btn:focus-visible .io-btn__icon {
  right: calc(100% - var(--io-btn-icon-w) - var(--io-btn-in));
}

.io-btn:hover .io-btn__icon svg,
.io-btn:focus-visible .io-btn__icon svg {
  transform: rotate(0deg);
}

.io-btn:focus-visible {
  outline: 3px solid var(--io-amber);
  outline-offset: 3px;
}

.io-btn--light {
  background: #fff;
  color: var(--io-ink);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.io-btn--light .io-btn__icon {
  background: var(--io-teal);
  color: #fff;
}

.io-btn--light:hover,
.io-btn--light:focus-visible {
  color: var(--io-ink);
}

/* ============================================================
   HERO - centred, flowing title
   ============================================================ */
.io-hero {
  padding: 170px 0 0;
  text-align: center;
  background: radial-gradient(ellipse 75% 65% at 50% 38%, #0d454c 0%, var(--io-ink) 55%, #041a1e 100%);
  overflow: hidden;
  isolation: isolate;
}

.io-hero > .container {
  position: relative;
  z-index: 2;
}

/* circuit-board traces, used on several dark and mist sections */
.io-pcb {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--io-pcb) 0 0 / 240px;
  opacity: 0.14;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, transparent 25%, #000 75%);
  mask-image: radial-gradient(ellipse at 50% 50%, transparent 25%, #000 75%);
}

/* live device mesh, drawn by JS; dimmed behind the copy so text stays readable */
.io-net {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 34% 40% at 50% 42%, rgba(0, 0, 0, 0.3), #000 100%);
  mask-image: radial-gradient(ellipse 34% 40% at 50% 42%, rgba(0, 0, 0, 0.3), #000 100%);
}

/* edge devices */
.io-hero__devices {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.io-dev {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px 9px 9px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(143, 227, 223, 0.22);
  backdrop-filter: blur(8px);
  color: #fff;
  text-align: left;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.io-dev--l1 { left: 3%; top: 21%; }
.io-dev--l2 { left: 7%; top: 44%; }
.io-dev--l3 { left: 2.5%; top: 66%; }
.io-dev--r1 { right: 3%; top: 19%; }
.io-dev--r2 { right: 7%; top: 42%; }
.io-dev--r3 { right: 2.5%; top: 64%; }

.io-dev__icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(0, 176, 177, 0.2);
  color: var(--io-teal-lt);
  font-size: 20px;
}

.io-dev__meta {
  display: grid;
  gap: 1px;
}

.io-dev__name {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

.io-dev__name .io-led {
  width: 6px;
  height: 6px;
  box-shadow: none;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.io-dev__val {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

.io-dev__val b {
  font-family: var(--io-display);
  font-stretch: 112%;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

/* a packet just left this device */
.io-dev.is-tx {
  border-color: rgba(255, 176, 32, 0.6);
  box-shadow: 0 0 24px rgba(255, 176, 32, 0.18);
}

.io-dev.is-tx .io-led {
  background: var(--io-amber);
  box-shadow: 0 0 8px var(--io-amber);
}

:where(.io-anim) .io-dev {
  opacity: 0;
  scale: 0.85;
  transition:
    opacity 0.7s var(--io-ease),
    scale 0.7s var(--io-ease),
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.io-hero.is-ready .io-dev {
  opacity: 1;
  scale: 1;
  transition-delay: calc(0.9s + var(--i) * 0.12s), calc(0.9s + var(--i) * 0.12s), 0s, 0s;
  animation: io-float 7s ease-in-out infinite;
  animation-delay: calc(var(--i) * -1.1s);
}

/* message feed */
.io-feed {
  position: relative;
  z-index: 2;
  margin-top: 110px;
  padding: 15px 0;
  border-top: 1px solid rgba(143, 227, 223, 0.14);
  background: rgba(0, 0, 0, 0.22);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.io-feed__track {
  display: flex;
  gap: 44px;
  width: max-content;
  animation: io-marquee 70s linear infinite;
}

.io-feed:hover .io-feed__track {
  animation-play-state: paused;
}

@keyframes io-marquee {
  to {
    transform: translateX(-50%);
  }
}

.io-feed__msg {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--io-mono);
  font-size: 13px;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.55);
}

.io-feed__msg em {
  font-style: normal;
  color: var(--io-teal-lt);
}

.io-feed__verb {
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(0, 176, 177, 0.2);
  color: var(--io-teal-lt);
}

.io-feed__verb--sub {
  background: rgba(255, 176, 32, 0.16);
  color: #ffd27a;
}

.io-feed__verb--ack {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.io-hero__copy {
  max-width: 1040px;
  margin: 0 auto;
}

.io-page .io-hero__title {
  color: #fff;
  font-size: clamp(36px, 4.7vw, 66px);
  font-stretch: 122%;
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.025em;
}

.io-hero__line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.06em;
}

.io-hero__line > span {
  display: inline-block;
}

:where(.io-anim) .io-hero__line > span {
  transform: translateY(105%);
  transition: transform 1s var(--io-ease);
}

:where(.io-anim) .io-hero__line:nth-child(2) > span {
  transition-delay: 0.12s;
  /* second line runs in the signal colour as a gradient that keeps flowing */
}

.io-hero__line:nth-child(2) > span {
  background: linear-gradient(90deg, var(--io-teal-lt) 0%, var(--io-teal) 30%, #fff 50%, var(--io-teal) 70%, var(--io-teal-lt) 100%);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: io-flow 7s linear infinite;
}

@keyframes io-flow {
  to {
    background-position: -250% 0;
  }
}

.io-hero.is-ready .io-hero__line > span {
  transform: none;
}

.io-page .io-hero__text {
  max-width: 680px;
  margin-inline: auto;
  margin-top: 26px !important;
  font-size: 17.5px;
  color: rgba(255, 255, 255, 0.78);
}

.io-hero__caps {
  display: grid;
  grid-template-columns: repeat(4, max-content);
  gap: 10px;
  justify-content: center;
  margin: 28px auto 36px;
  padding: 0;
  list-style: none;
}

.io-hero__caps li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(143, 227, 223, 0.25);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 600;
  color: #fff;
  font-size: 14.5px;
}

:where(.io-anim) :is(.io-hero__text, .io-hero__caps li, .io-hero__actions) {
  opacity: 0;
  translate: 0 16px;
  transition:
    opacity 0.8s var(--io-ease),
    translate 0.8s var(--io-ease);
}

.io-hero.is-ready :is(.io-hero__text, .io-hero__caps li, .io-hero__actions) {
  opacity: 1;
  translate: 0 0;
}

.io-hero.is-ready .io-hero__text {
  transition-delay: 0.3s;
}

.io-hero.is-ready .io-hero__caps li:nth-child(1) {
  transition-delay: 0.42s;
}

.io-hero.is-ready .io-hero__caps li:nth-child(2) {
  transition-delay: 0.5s;
}

.io-hero.is-ready .io-hero__caps li:nth-child(3) {
  transition-delay: 0.58s;
}

.io-hero.is-ready .io-hero__caps li:nth-child(4) {
  transition-delay: 0.66s;
}

.io-hero.is-ready .io-hero__actions {
  transition-delay: 0.78s;
}

/* ============================================================
   TRUST
   ============================================================ */
.io-trust {
  padding: 64px 0;
  background: var(--io-ink);
  color: #fff;
}

.io-trust > .container {
  position: relative;
  z-index: 1;
}

.io-page .io-trust__title {
  color: #fff;
  text-align: center;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 600;
  margin-bottom: 38px;
}

.io-trust__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.io-trust__item {
  position: relative;
  display: grid;
  gap: 6px;
  justify-items: center;
  padding: 10px 16px;
  text-align: center;
}

.io-trust__item + .io-trust__item {
  border-left: 1px solid rgba(143, 227, 223, 0.2);
}

.io-trust__num {
  font-family: var(--io-display);
  font-stretch: 125%;
  font-size: clamp(38px, 4.4vw, 58px);
  font-weight: 800;
  line-height: 1;
  color: var(--io-teal-lt);
  font-variant-numeric: tabular-nums;
}

.io-trust__label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.82);
}

/* ============================================================
   CTA BAND (connected product)
   ============================================================ */
.io-band {
  padding: 120px 0 40px;
}

.io-band__card {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  align-items: center;
  padding: 0 64px 0 40px;
  border-radius: 32px;
  background:
    radial-gradient(circle at 18% 60%, rgba(0, 176, 177, 0.38), transparent 55%),
    linear-gradient(120deg, var(--io-ink), var(--io-ink-2));
  color: #fff;
}

.io-band__media {
  position: relative;
  align-self: end;
  margin-top: -80px;
  text-align: center;
}

.io-band__media img {
  position: relative;
  width: min(260px, 100%);
  height: auto;
  filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.35));  animation: io-float 6s ease-in-out infinite;
}

.io-band__ripple {
  position: absolute;
  left: 50%;
  top: 45%;
  width: 0;
  height: 0;
}

.io-band__ripple i {
  position: absolute;
  left: -160px;
  top: -160px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1.5px solid rgba(143, 227, 223, 0.45);
  animation: io-ping 4.2s var(--io-ease) infinite;
}

.io-band__ripple i:nth-child(2) {
  animation-delay: 1.4s;
}

.io-band__ripple i:nth-child(3) {
  animation-delay: 2.8s;
}

.io-band__copy {
  padding: 56px 0;
}

.io-page .io-band__copy h2 {
  color: #fff;
  font-size: clamp(26px, 2.8vw, 38px);
  line-height: 1.15;
}

.io-band__copy p {
  margin: 18px 0 30px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 17px;
}

/* ============================================================
   SERVICES - device tiles with power switch
   ============================================================ */
.io-svc {
  padding: 110px 0;
}

.io-svc__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.io-svc__card {
  position: relative;
  padding: 26px 24px 28px;
  border-radius: 22px;
  background: var(--io-mist);
  border: 1px solid var(--io-line);
  overflow: hidden;
  isolation: isolate;
  transition:
    border-color 0.35s ease,
    transform 0.45s var(--io-ease),
    box-shadow 0.45s var(--io-ease);
}

.io-svc__card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 0%), rgba(0, 176, 177, 0.18), transparent 70%);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.io-svc__card:hover {
  border-color: rgba(0, 176, 177, 0.55);
  transform: translateY(-6px);
  box-shadow: 0 24px 44px rgba(7, 43, 48, 0.1);
}

.io-svc__card:hover::before {
  opacity: 1;
}

.io-svc__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.io-svc__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 15px;
  background: #fff;
  color: var(--io-teal-dk);
  font-size: 24px;
  box-shadow: 0 6px 16px rgba(7, 43, 48, 0.08);
  transition:
    background 0.35s ease,
    color 0.35s ease;
}

.io-svc__card:hover .io-svc__icon {
  background: var(--io-teal);
  color: #fff;
}

/* toggle that flips on with hover */
.io-svc__switch {
  position: relative;
  width: 38px;
  height: 22px;
  border-radius: 999px;
  background: #c9dcdc;
  transition: background 0.35s ease;
}

.io-svc__switch i {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.18);
  transition: transform 0.4s var(--io-ease);
}

.io-svc__card:hover .io-svc__switch {
  background: var(--io-teal);
}

.io-svc__card:hover .io-svc__switch i {
  transform: translateX(16px);
}

.io-page .io-svc__card h3 {
  font-size: 19px;
  line-height: 1.25;
  margin-bottom: 10px;
}

.io-svc__card p {
  font-size: 15px;
}

/* faint circuit traces fading down from the top edge */
.io-cases::before,
.io-proc::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--io-pcb) 0 0 / 240px;
  opacity: 0.09;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 45%);
  mask-image: linear-gradient(180deg, #000, transparent 45%);
}

.io-cases > .container,
.io-proc > .container {
  position: relative;
}

/* ============================================================
   CASE STUDIES - tabbed, autoplay with progress
   ============================================================ */
.io-cases {
  padding: 110px 0;
  background: var(--io-mist);
}

.io-cases__box {
  padding: 14px;
  border-radius: 30px;
  background: #fff;
  box-shadow: 0 30px 60px rgba(7, 43, 48, 0.08);
}

.io-cases__tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 6px;
  border-radius: 20px;
  background: var(--io-mist);
}

.io-cases__tab {
  position: relative;
  padding: 16px 12px;
  border: 0;
  border-radius: 14px;
  background: transparent;
  font-family: var(--io-display) !important;
  font-stretch: 112%;
  font-weight: 700;
  font-size: 17px;
  color: var(--io-muted);
  overflow: hidden;
  cursor: pointer;
  transition:
    background 0.35s ease,
    color 0.35s ease;
}

.io-cases__tab:hover {
  color: var(--io-ink);
}

.io-cases__tab.is-active {
  background: var(--io-ink);
  color: #fff;
}

.io-cases__tab:focus-visible {
  outline: 3px solid var(--io-teal);
  outline-offset: 2px;
}

.io-cases__bar {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 100%;
  background: var(--io-teal);
  transform: scaleX(0);
  transform-origin: left;
}

.io-cases__box.is-playing .io-cases__tab.is-active .io-cases__bar {
  animation: io-progress 7s linear forwards;
}

.io-cases__box.is-paused .io-cases__bar,
.io-cases__box.is-manual .io-cases__bar {
  animation-play-state: paused !important;
}

.io-cases__box.is-manual .io-cases__bar {
  display: none;
}

@keyframes io-progress {
  to {
    transform: scaleX(1);
  }
}

.io-case {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 28px 28px 22px;
}

.io-case.is-active .io-case__media {
  animation: io-case-in 0.8s var(--io-ease) both;
}

.io-case.is-active .io-case__step {
  animation: io-rise 0.7s var(--io-ease) both;
}

.io-case.is-active .io-case__step:nth-child(2) {
  animation-delay: 0.1s;
}

.io-case.is-active .io-case__step:nth-child(3) {
  animation-delay: 0.2s;
}

@keyframes io-case-in {
  from {
    opacity: 0;
    clip-path: inset(0 0 0 100% round 22px);
  }
  to {
    opacity: 1;
    clip-path: inset(0 0 0 0 round 22px);
  }
}

.io-case__media {
  border-radius: 22px;
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--io-mist);
}

.io-case__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* CaseRoom typeset art */
.io-case__art {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 9% 9% 0;
  background:
    radial-gradient(circle at 90% 0%, rgba(255, 176, 32, 0.25), transparent 45%),
    linear-gradient(160deg, #f6f1e7, #ece4d3);
  color: #1f2a37;
}

.io-case__art-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--io-display);
  font-stretch: 112%;
  font-weight: 700;
  font-size: clamp(20px, 2.2vw, 28px);
  color: #1f2a37;
}

.io-case__art-mark i {
  color: #b7791f;
}

.io-case__art b {
  margin-top: 14px;
  font-family: var(--io-display);
  font-stretch: 112%;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.05;
  font-weight: 800;
}

.io-case__art small {
  margin-top: 10px;
  font-size: 14px;
  color: #5b6472;
}

.io-case__art-ui {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: auto;
  padding: 18px;
  border-radius: 18px 18px 0 0;
  background: #fff;
  box-shadow: 0 -10px 30px rgba(31, 42, 55, 0.08);
}

.io-case__art-ui span {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border-radius: 12px;
  background: #f6f4ef;
  font-size: 13px;
  font-weight: 600;
}

.io-case__art-ui i {
  color: #b7791f;
  font-size: 18px;
}

.io-case__art-ui .is-ai {
  grid-column: 1 / -1;
  background: #1f2a37;
  color: #fff;
}

.io-case__art-ui .is-ai i {
  color: var(--io-amber);
}

.io-case__flow {
  display: grid;
  gap: 14px;
  margin: 0;
}

.io-case__step {
  position: relative;
  padding: 20px 22px 20px 24px;
  border-radius: 18px;
  border: 1px solid var(--io-line);
}

.io-case__step::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 3px;
  background: currentColor;
}

.io-case__step dt {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-weight: 700;
  font-size: 15px;
}

.io-case__step dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--io-text);
}

.io-case__step--p {
  color: #c2412d;
  background: #fdf1ee;
  border-color: #f6d9d2;
}

.io-case__step--s {
  color: var(--io-teal-dk);
  background: var(--io-teal-bg);
  border-color: #c4e9e7;
}

.io-case__step--r {
  color: var(--io-ink);
  background: #fff;
}

/* ============================================================
   INDUSTRIES - network hub: industry nodes ring a live screen
   ============================================================ */
.io-ind {
  padding: 110px 0;
  overflow: hidden;
}

.io-ind::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--io-pcb) 0 0 / 240px;
  opacity: 0.08;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 50% 60% at 30% 60%, #000, transparent 70%);
  mask-image: radial-gradient(ellipse 50% 60% at 30% 60%, #000, transparent 70%);
}

.io-ind > .container {
  position: relative;
}

.io-hub {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 56px;
  align-items: center;
}

.io-hub__stage {
  position: relative;
  width: 100%;
  max-width: 640px;
  aspect-ratio: 1;
  margin: 0 auto;
}

.io-hub__links {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.io-hub__orbit {
  fill: none;
  stroke: var(--io-line);
  stroke-width: 1.5;
  stroke-dasharray: 3 7;
}

.io-hub__link {
  fill: none;
  stroke: #c9dfdf;
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
  transition: stroke 0.4s ease, stroke-width 0.4s ease;
}

.io-hub__link.is-active {
  stroke: var(--io-teal);
  stroke-width: 3;
  stroke-dasharray: 10 8;
  filter: drop-shadow(0 0 6px rgba(0, 176, 177, 0.6));
  animation: io-dash 0.6s linear infinite;
}

.io-hub__pkt {
  fill: var(--io-amber);
  filter: drop-shadow(0 0 6px var(--io-amber));
}

/* centre screen */
.io-hub__core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 44%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
}

.io-hub__ring {
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  border: 2px dashed rgba(0, 176, 177, 0.45);
  animation: io-spin 40s linear infinite;
}

.io-hub__ring--b {
  inset: -30px;
  border: 1px solid var(--io-line);
  border-top-color: var(--io-teal);
  border-right-color: var(--io-teal);
  animation-duration: 6s;
}

.io-hub__screen {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  overflow: hidden;
  background: radial-gradient(circle at 50% 45%, #0f4a51, var(--io-ink) 70%);
  box-shadow:
    0 0 0 8px #fff,
    0 0 0 10px rgba(0, 176, 177, 0.35),
    0 30px 60px rgba(7, 43, 48, 0.25);
}

/* the IoT core chip */
.io-hub__screen {
  display: grid;
  place-items: center;
}

.io-core {
  position: relative;
  z-index: 1;
  width: 80%;
  height: 80%;
  overflow: visible;
}

.io-core__pin {
  fill: rgba(143, 227, 223, 0.3);
  animation: io-core-pin 2.4s ease-in-out infinite;
  animation-delay: calc(var(--k) * 0.1s);
}

@keyframes io-core-pin {
  0%,
  60%,
  100% {
    fill: rgba(143, 227, 223, 0.3);
  }
  20% {
    fill: var(--io-teal-lt);
  }
}

.io-core__body {
  fill: #0c3b41;
  stroke: var(--io-teal-lt);
  stroke-width: 2;
  animation: io-core-glow 4s ease-in-out infinite;
}

/* very subtle breathing glow on the chip edge */
@keyframes io-core-glow {
  0%,
  100% {
    filter: drop-shadow(0 0 2px rgba(0, 176, 177, 0.25));
  }
  50% {
    filter: drop-shadow(0 0 9px rgba(0, 176, 177, 0.55));
  }
}

.io-core__dot {
  fill: var(--io-teal-lt);
  filter: drop-shadow(0 0 3px var(--io-teal));
}

.io-core__pulse {
  fill: none;
  stroke: var(--io-teal-lt);
  stroke-width: 1.2;
  pointer-events: none;
}

.io-core__trace {
  stroke: rgba(143, 227, 223, 0.5);
  stroke-width: 2;
  stroke-linecap: round;
}

.io-core__die {
  filter: drop-shadow(0 0 10px rgba(0, 176, 177, 0.8));
  transform-box: fill-box;
  transform-origin: center;
}

.io-core text {
  font-family: var(--io-display);
  font-stretch: 118%;
  font-size: 19px;
  font-weight: 800;
  fill: #fff;
}

/* the core pulses each time it sends */
.io-hub.is-tx .io-core__die {
  animation: io-core-tx 0.6s var(--io-ease);
}

@keyframes io-core-tx {
  40% {
    transform: scale(1.12);
    filter: drop-shadow(0 0 22px var(--io-teal-lt));
  }
}

/* radar sweep over the live screen */
.io-hub__sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0, 176, 177, 0.35), transparent 22%);
  mix-blend-mode: screen;
  animation: io-spin 5s linear infinite;
}

/* industry nodes on the ring */
.io-hub__nodes {
  position: absolute;
  inset: 0;
}

.io-hub__node {
  position: absolute;
  left: var(--x);
  top: var(--y);
  display: grid;
  justify-items: center;
  gap: 6px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  transform: translate(-50%, -28px);
}

.io-hub__node-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: #fff;
  border: 1.5px solid var(--io-line);
  color: var(--io-teal-dk);
  font-size: 24px;
  box-shadow: 0 8px 20px rgba(7, 43, 48, 0.08);
  transition:
    background 0.35s ease,
    color 0.35s ease,
    border-color 0.35s ease,
    transform 0.45s var(--io-ease),
    box-shadow 0.35s ease;
}

.io-hub__node-label {
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--io-muted);
  white-space: nowrap;
  transition: background 0.35s ease, color 0.35s ease;
}

.io-hub__node:hover .io-hub__node-icon {
  border-color: var(--io-teal);
  transform: translateY(-3px);
}

.io-hub__node.is-active .io-hub__node-icon {
  background: var(--io-teal);
  border-color: var(--io-teal);
  color: #fff;
  transform: scale(1.12);
  box-shadow:
    0 0 0 6px rgba(0, 176, 177, 0.18),
    0 12px 26px rgba(0, 133, 134, 0.35);
}

.io-hub__node.is-active .io-hub__node-label {
  background: var(--io-ink);
  color: #fff;
}

.io-hub__node.is-hit .io-hub__node-icon {
  animation: io-node-hit 0.5s var(--io-ease);
}

@keyframes io-node-hit {
  40% {
    box-shadow:
      0 0 0 14px rgba(255, 176, 32, 0.25),
      0 12px 26px rgba(0, 133, 134, 0.35);
  }
}

.io-hub__node:focus-visible {
  outline: none;
}

.io-hub__node:focus-visible .io-hub__node-icon {
  outline: 3px solid var(--io-amber);
  outline-offset: 3px;
}

/* detail panel */
.io-hub__panels {
  position: relative;
}

.io-hub__panel {
  position: relative;
  padding: 12px 12px 34px;
  border-radius: 28px;
  background:
    radial-gradient(ellipse at 100% 0%, rgba(0, 176, 177, 0.25), transparent 55%),
    var(--io-ink);
  color: #fff;
  overflow: hidden;
}

.io-hub__panel.is-active {
  animation: io-rise 0.55s var(--io-ease) both;
}

.io-hub__media {
  position: relative;
  margin-bottom: 44px;
}

.io-hub__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 20px;
}

.io-hub__panel.is-active .io-hub__media img {
  animation: io-hub-photo 0.9s var(--io-ease) both;
}

@keyframes io-hub-photo {
  from {
    clip-path: inset(0 0 0 100% round 20px);
  }
  to {
    clip-path: inset(0 0 0 0 round 20px);
  }
}

.io-hub__panel > :not(.io-hub__media, .io-hub__progress) {
  margin-left: 22px;
  margin-right: 22px;
}

.io-hub__panel-icon {
  position: absolute;
  left: 22px;
  bottom: -30px;
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border: 4px solid var(--io-ink);
  border-radius: 18px;
  background: linear-gradient(140deg, var(--io-teal), var(--io-teal-dk));
  font-size: 28px;
  box-shadow: 0 10px 24px rgba(0, 176, 177, 0.35);
}

.io-page .io-hub__panel h3 {
  color: #fff;
  font-size: clamp(24px, 2.4vw, 32px);
  font-stretch: 118%;
  line-height: 1.1;
}

.io-hub__panel p {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16.5px;
}

.io-hub__progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: var(--io-teal);
  transform: scaleX(0);
  transform-origin: left;
}

.io-hub.is-playing:not(.is-manual) .io-hub__panel.is-active .io-hub__progress {
  animation: io-progress 4.5s linear forwards;
}

.io-hub.is-paused .io-hub__progress {
  animation-play-state: paused !important;
}

@media (max-width: 1199px) {
  .io-hub {
    gap: 32px;
  }

  .io-hub__node-icon {
    width: 48px;
    height: 48px;
    border-radius: 15px;
    font-size: 21px;
  }

  .io-hub__node-label {
    font-size: 11.5px;
  }
}

/* no room for a ring: screen on top, nodes become a swipe row */
@media (max-width: 991px) {
  /* minmax(0, ...) or the nowrap chip row widens the track past the viewport */
  .io-hub {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .io-hub__stage {
    max-width: none;
    aspect-ratio: auto;
  }

  .io-hub__links,
  .io-hub__ring {
    display: none;
  }

  .io-hub__core {
    position: relative;
    left: auto;
    top: auto;
    width: 150px;
    margin: 0 auto;
    transform: none;
  }

  .io-hub__screen {
    box-shadow:
      0 0 0 6px #fff,
      0 0 0 8px rgba(0, 176, 177, 0.35),
      0 16px 34px rgba(7, 43, 48, 0.2);
  }

  .io-hub__nodes {
    position: static;
    display: flex;
    gap: 8px;
    margin: 16px -12px 0;
    padding: 4px 12px 8px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }

  .io-hub__nodes::-webkit-scrollbar {
    display: none;
  }

  .io-hub__node {
    position: static;
    flex: none;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px 6px 6px;
    border-radius: 999px;
    border: 1px solid var(--io-line);
    background: #fff;
    transform: none;
    scroll-snap-align: start;
  }

  .io-hub__node-icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    font-size: 17px;
    box-shadow: none;
  }

  .io-hub__node.is-active {
    background: var(--io-ink);
    border-color: var(--io-ink);
  }

  .io-hub__node.is-active .io-hub__node-icon {
    transform: none;
    box-shadow: none;
  }

  .io-hub__node-label,
  .io-hub__node.is-active .io-hub__node-label {
    padding: 0;
    background: none;
    font-size: 13.5px;
  }

  .io-hub__panel {
    padding: 10px 10px 28px;
  }
}

@media (max-width: 575px) {


  .io-hub__panel-icon {
    width: 50px;
    height: 50px;
    font-size: 24px;
  }
}

/* ============================================================
   COMPLIANCE - radar + scan line ticks each standard
   ============================================================ */
.io-comp {
  padding: 110px 0;
  background:
    radial-gradient(900px 500px at 0% 0%, rgba(0, 176, 177, 0.22), transparent 60%),
    var(--io-ink);
  color: #fff;
}

.io-comp .io-title {
  color: #fff;
}

.io-comp .io-lead {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.75);
}

.io-comp .io-lead strong {
  color: #fff;
}

.io-comp__layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.io-comp__intro {
  position: sticky;
  top: 120px;
}

.io-comp__radar {
  position: relative;
  width: min(320px, 100%);
  aspect-ratio: 1;
  margin: 44px auto 0;
  border-radius: 50%;
  border: 1px solid rgba(143, 227, 223, 0.3);
  overflow: hidden;
}

.io-comp__radar > i {
  position: absolute;
  inset: 0;
  margin: auto;
  border-radius: 50%;
  border: 1px solid rgba(143, 227, 223, 0.18);
}

.io-comp__radar > i:nth-of-type(1) {
  width: 75%;
  height: 75%;
}

.io-comp__radar > i:nth-of-type(2) {
  width: 50%;
  height: 50%;
}

.io-comp__radar > i:nth-of-type(3) {
  width: 100%;
  height: 1px;
  border-radius: 0;
  border: 0;
  background: rgba(143, 227, 223, 0.18);
}

.io-comp__sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0, 176, 177, 0.55), transparent 25%);
  animation: io-spin 4s linear infinite;
}

.io-comp__core {
  position: absolute;
  inset: 0;
  margin: auto;
  display: grid;
  place-items: center;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--io-teal);
  font-size: 40px;
  color: #fff;
  box-shadow: 0 0 0 8px rgba(0, 176, 177, 0.2);
}

.io-comp__panel {
  position: relative;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(143, 227, 223, 0.16);
  overflow: hidden;
}

.io-comp__scanline {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 70px;
  z-index: 1;
  background: linear-gradient(180deg, transparent, rgba(0, 176, 177, 0.25) 85%, var(--io-teal));
  opacity: 0;
  pointer-events: none;
}

.io-comp__panel.is-on .io-comp__scanline {
  animation: io-scan 2.6s var(--io-ease-io) forwards;
}

@keyframes io-scan {
  0% {
    top: -70px;
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    top: 100%;
    opacity: 0;
  }
}

.io-comp__list {
  margin: 0;
  padding: 8px 0;
  list-style: none;
}

.io-comp__item {
  display: grid;
  grid-template-columns: 44px 1fr 28px;
  gap: 16px;
  align-items: center;
  padding: 14px 24px;
  transition: background 0.3s ease;
}

.io-comp__item + .io-comp__item {
  border-top: 1px solid rgba(143, 227, 223, 0.1);
}

.io-comp__item:hover {
  background: rgba(0, 176, 177, 0.08);
}

.io-comp__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 176, 177, 0.18);
  font-size: 22px;
  color: #fff;
}

.io-comp__icon img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.io-comp__item p {
  font-size: 15px;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.72);
}

.io-comp__item strong {
  color: #fff;
  font-weight: 700;
}

.io-comp__tick {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1.5px solid rgba(143, 227, 223, 0.35);
  color: transparent;
  font-size: 16px;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease;
}

/* each tick lands as the scan line passes it */
.io-comp__panel.is-on .io-comp__tick {
  background: var(--io-teal);
  border-color: var(--io-teal);
  color: #fff;
}

.io-comp__panel.is-on .io-comp__item:nth-child(1) .io-comp__tick { transition-delay: 0.25s; }
.io-comp__panel.is-on .io-comp__item:nth-child(2) .io-comp__tick { transition-delay: 0.42s; }
.io-comp__panel.is-on .io-comp__item:nth-child(3) .io-comp__tick { transition-delay: 0.6s; }
.io-comp__panel.is-on .io-comp__item:nth-child(4) .io-comp__tick { transition-delay: 0.78s; }
.io-comp__panel.is-on .io-comp__item:nth-child(5) .io-comp__tick { transition-delay: 0.95s; }
.io-comp__panel.is-on .io-comp__item:nth-child(6) .io-comp__tick { transition-delay: 1.12s; }
.io-comp__panel.is-on .io-comp__item:nth-child(7) .io-comp__tick { transition-delay: 1.3s; }
.io-comp__panel.is-on .io-comp__item:nth-child(8) .io-comp__tick { transition-delay: 1.46s; }
.io-comp__panel.is-on .io-comp__item:nth-child(9) .io-comp__tick { transition-delay: 1.62s; }
.io-comp__panel.is-on .io-comp__item:nth-child(10) .io-comp__tick { transition-delay: 1.78s; }
.io-comp__panel.is-on .io-comp__item:nth-child(11) .io-comp__tick { transition-delay: 1.94s; }
.io-comp__panel.is-on .io-comp__item:nth-child(12) .io-comp__tick { transition-delay: 2.1s; }
.io-comp__panel.is-on .io-comp__item:nth-child(13) .io-comp__tick { transition-delay: 2.26s; }

/* security CTA */
.io-secure {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  margin-top: 80px;
  padding: 36px 40px;
  border-radius: 26px;
  background: #fff;
  color: var(--io-text);
}

.io-secure__lock {
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  border-radius: 24px;
  background: var(--io-teal-bg);
}

.io-secure__lock svg {
  width: 52px;
  fill: none;
  stroke: var(--io-teal-dk);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* shackle drops shut once the card is in view */
.io-secure__shackle {
  transform: translateY(-7px);
  transition: transform 0.6s cubic-bezier(0.5, 1.8, 0.5, 1) 0.7s;
}

.io-secure.is-in .io-secure__shackle {
  transform: none;
}

.io-page .io-secure__copy h2 {
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.2;
}

.io-secure__copy p {
  margin-top: 10px;
  font-size: 15.5px;
}

/* ============================================================
   CHALLENGES - diagnostics console: noisy signal, then the fix
   ============================================================ */
.io-chal {
  padding: 110px 0;
}

.io-chal__console {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 16px;
  padding: 14px;
  border-radius: 30px;
  background: var(--io-mist);
  border: 1px solid var(--io-line);
}

.io-chal__alerts {
  display: grid;
  gap: 8px;
  align-content: start;
}

.io-chal__alert {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 13px 16px 13px 13px;
  border: 1px solid var(--io-line);
  border-radius: 16px;
  background: #fff;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.3;
  color: var(--io-ink);
  text-align: left;
  overflow: hidden;
  cursor: pointer;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease,
    transform 0.3s var(--io-ease);
}

.io-chal__alert:hover {
  border-color: var(--io-teal);
  transform: translateX(4px);
}

.io-chal__alert:focus-visible {
  outline: 3px solid var(--io-teal);
  outline-offset: 2px;
}

.io-chal__alert-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: #fff3dc;
  color: #b97700;
  font-size: 20px;
  transition:
    background 0.4s ease,
    color 0.4s ease;
}

/* unresolved rows blink amber; once shown they settle to teal */
.io-chal__alert .io-led {
  background: var(--io-amber);
  box-shadow: 0 0 0 3px rgba(255, 176, 32, 0.22);
  animation: io-blink 1.4s steps(1) infinite;
}

.io-chal__alert.is-resolved .io-led {
  background: var(--io-teal);
  box-shadow: 0 0 0 3px rgba(0, 176, 177, 0.2);
  animation: none;
  transition: background 0.3s ease 1.6s;
}

.io-chal__alert.is-resolved .io-chal__alert-icon {
  background: var(--io-teal-bg);
  color: var(--io-teal-dk);
}

.io-chal__alert.is-active {
  background: var(--io-ink);
  border-color: var(--io-ink);
  color: #fff;
  transform: none;
}

.io-chal__alert.is-active .io-chal__alert-icon {
  background: rgba(0, 176, 177, 0.22);
  color: var(--io-teal-lt);
}

.io-chal__bar {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--io-teal);
  transform: scaleX(0);
  transform-origin: left;
}

.io-chal__console.is-playing .io-chal__alert.is-active .io-chal__bar {
  animation: io-progress 6.5s linear forwards;
}

.io-chal__console.is-paused .io-chal__bar {
  animation-play-state: paused !important;
}

.io-chal__console.is-manual .io-chal__bar {
  display: none;
}

.io-chal__screen {
  position: relative;
  padding: 30px;
  border-radius: 22px;
  background:
    radial-gradient(ellipse at 100% 0%, rgba(0, 176, 177, 0.22), transparent 55%),
    var(--io-ink);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

.io-chal__screen .io-pcb {
  opacity: 0.1;
  -webkit-mask-image: none;
  mask-image: none;
}

.io-chal__panel {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
}

.io-chal__panel.is-active {
  animation: io-rise 0.5s var(--io-ease) both;
}

.io-chal__panel-head {
  display: flex;
  align-items: center;
  gap: 16px;
}

.io-chal__panel-icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 176, 32, 0.16);
  color: var(--io-amber);
  font-size: 26px;
}

.io-chal__panel.is-active .io-chal__panel-icon {
  animation: io-icon-fix 0.5s ease 1.6s forwards;
}

@keyframes io-icon-fix {
  to {
    background: rgba(0, 176, 177, 0.2);
    color: var(--io-teal-lt);
  }
}

.io-page .io-chal__panel-head h3 {
  color: #fff;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.2;
}

.io-chal__status {
  display: grid;
  flex: none;
  margin-left: auto;
}

.io-chal__status > span {
  grid-area: 1 / 1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.io-chal__status-bad {
  background: rgba(255, 176, 32, 0.14);
  color: #ffd27a;
}

.io-chal__status-bad .io-led {
  background: var(--io-amber);
  animation: io-blink 0.8s steps(1) infinite;
}

.io-chal__status-ok {
  background: rgba(0, 176, 177, 0.18);
  color: var(--io-teal-lt);
  opacity: 0;
}

.io-chal__panel.is-active .io-chal__status-bad {
  animation: io-swap-out 0.3s ease 1.6s forwards;
}

.io-chal__panel.is-active .io-chal__status-ok {
  animation: io-swap-in 0.4s var(--io-ease) 1.7s forwards;
}

@keyframes io-swap-out {
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

@keyframes io-swap-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* oscilloscope */
.io-chal__scope {
  height: 200px;
  padding: 0;
  border-radius: 16px;
  border: 1px solid rgba(143, 227, 223, 0.16);
  background:
    linear-gradient(rgba(143, 227, 223, 0.07) 1px, transparent 1px) 0 0 / 100% 25%,
    linear-gradient(90deg, rgba(143, 227, 223, 0.07) 1px, transparent 1px) 0 0 / 40px 100%,
    rgba(0, 0, 0, 0.18);
}

.io-chal__scope svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* -- challenge visuals: problem state (.b) swaps to the fixed state (.a) -- */
.io-chal__scope svg {
  display: block;
  width: 100%;
  height: 100%;
}

.io-v text {
  font-family: var(--io-body);
  font-size: 16px;
  font-weight: 600;
  fill: rgba(255, 255, 255, 0.72);
}

.io-v .t-ok {
  fill: var(--io-teal-lt);
}

.io-v .t-bad {
  fill: #ffd27a;
}

.io-v .dev,
.io-v .cloud {
  fill: rgba(143, 227, 223, 0.08);
  stroke: rgba(143, 227, 223, 0.55);
  stroke-width: 1.5;
}

.io-v .led {
  fill: var(--io-teal);
}

.io-v .wire {
  fill: none;
  stroke: rgba(143, 227, 223, 0.28);
  stroke-width: 1.5;
}

.io-v .wire.ok {
  stroke: rgba(143, 227, 223, 0.6);
}

.io-v .wire.bad {
  stroke: rgba(255, 176, 32, 0.45);
}

.io-v .dashed {
  stroke-dasharray: 6 6;
}

.io-v .dot,
.io-v .pkt,
.io-v .shape {
  fill: var(--io-teal-lt);
  filter: drop-shadow(0 0 4px rgba(0, 176, 177, 0.9));
}

.io-v .dot-bad,
.io-v .shape-bad,
.io-v .intruder {
  fill: var(--io-amber);
  filter: drop-shadow(0 0 4px rgba(255, 176, 32, 0.9));
}

.io-v .db,
.io-v .box,
.io-v .server {
  fill: rgba(0, 176, 177, 0.12);
  stroke: var(--io-teal-lt);
  stroke-width: 1.8;
}

.io-v .db.bad,
.io-v .box.bad,
.io-v .server.bad {
  fill: rgba(255, 176, 32, 0.12);
  stroke: var(--io-amber);
}

.io-v .server-slot {
  stroke: rgba(143, 227, 223, 0.5);
  stroke-width: 3;
  stroke-linecap: round;
}

.io-v .server-slot.bad {
  stroke: rgba(255, 176, 32, 0.6);
}

.io-v .meter {
  fill: rgba(255, 255, 255, 0.08);
}

.io-v .meter-fill {
  fill: var(--io-teal);
}

.io-v .meter-fill.bad {
  fill: var(--io-amber);
  animation: io-blink 0.6s steps(1) infinite;
}

.io-v .cross {
  stroke: var(--io-amber);
  stroke-width: 4;
  stroke-linecap: round;
}

.io-v .bars rect {
  fill: var(--io-amber);
}

.io-v .bars .flick {
  animation: io-blink 0.5s steps(1) infinite;
  animation-delay: calc(var(--k) * 0.12s);
}

.io-v .retry,
.io-v .retry-head,
.io-v .tick {
  fill: none;
  stroke: var(--io-teal-lt);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.io-v .layer {
  fill: rgba(0, 176, 177, 0.18);
  stroke: var(--io-teal-lt);
  stroke-width: 1.8;
}

.io-v .clock {
  fill: none;
  stroke: var(--io-amber);
  stroke-width: 2.5;
}

.io-v .clock-hand {
  stroke: var(--io-amber);
  stroke-width: 3;
  stroke-linecap: round;
}

.io-v .bell {
  fill: none;
  stroke: rgba(143, 227, 223, 0.55);
  stroke-width: 2.5;
  stroke-linejoin: round;
}

.io-v .layer-row {
  fill: rgba(255, 176, 32, 0.08);
  stroke: rgba(255, 176, 32, 0.5);
  stroke-width: 1.5;
}

.io-v .lock-body {
  fill: var(--io-amber);
}

.io-v .shackle {
  fill: none;
  stroke: var(--io-amber);
  stroke-width: 3;
  transform: translateY(-6px);
}

.io-v .swarm {
  fill: var(--io-teal-lt);
  opacity: 0.15;
}

/* transforms on svg children rotate/shake round their own box */
.io-v :is(.shake, .spin, .clock-hand, .bell) {
  transform-box: fill-box;
  transform-origin: center;
}

.io-v .clock-hand {
  transform-origin: 50% 100%;
}

.io-v .bell {
  transform-origin: 50% 0;
}

/* state machine, driven by the active panel */
.io-v .a {
  opacity: 0;
}

.io-chal__panel.is-active .io-v .b {
  animation: io-v-out 0.5s ease 1.9s forwards;
}

.io-chal__panel.is-active .io-v .a {
  animation: io-v-in 0.6s ease 2.1s forwards;
}

@keyframes io-v-out {
  to {
    opacity: 0;
  }
}

@keyframes io-v-in {
  to {
    opacity: 1;
  }
}

.io-chal__panel.is-active .io-v .shake {
  animation: io-v-shake 0.25s linear infinite;
}

@keyframes io-v-shake {
  25% {
    transform: translate(-2px, 1px);
  }
  75% {
    transform: translate(2px, -1px);
  }
}

.io-v .spin {
  animation: io-spin 1.6s linear infinite;
}

.io-chal__panel.is-active .io-v .clock-hand {
  animation: io-spin 1s linear infinite;
}

.io-chal__panel.is-active .io-v .bell {
  animation:
    io-v-bell-on 0.3s ease 2.1s forwards,
    io-v-ring 1.2s ease-in-out 2.2s infinite;
}

@keyframes io-v-bell-on {
  to {
    stroke: var(--io-amber);
  }
}

@keyframes io-v-ring {
  0%,
  40%,
  100% {
    transform: rotate(0);
  }
  10% {
    transform: rotate(14deg);
  }
  20% {
    transform: rotate(-12deg);
  }
  30% {
    transform: rotate(6deg);
  }
}

/* security: rows and padlocks secure one by one */
.io-chal__panel.is-active .io-v .layer-row {
  animation: io-v-row 0.4s ease forwards;
  animation-delay: calc(2.1s + var(--k) * 0.18s);
}

@keyframes io-v-row {
  to {
    fill: rgba(0, 176, 177, 0.12);
    stroke: rgba(143, 227, 223, 0.6);
  }
}

.io-chal__panel.is-active .io-v .lock .shackle {
  animation: io-v-shut 0.35s cubic-bezier(0.5, 1.8, 0.5, 1) forwards;
  animation-delay: calc(2.1s + var(--k) * 0.18s);
}

@keyframes io-v-shut {
  to {
    transform: none;
    stroke: var(--io-teal-lt);
  }
}

.io-chal__panel.is-active .io-v .lock .lock-body {
  animation: io-v-lockbody 0.3s ease forwards;
  animation-delay: calc(2.1s + var(--k) * 0.18s);
}

@keyframes io-v-lockbody {
  to {
    fill: var(--io-teal);
  }
}

/* scaling: the device swarm keeps growing */
.io-chal__panel.is-active .io-v .swarm {
  animation: io-v-pop 0.4s ease forwards;
  animation-delay: calc(var(--k) * 45ms);
}

@keyframes io-v-pop {
  to {
    opacity: 1;
  }
}

.io-chal__io {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.io-page .io-chal__issue {
  padding: 20px 22px;
  border-radius: 16px;
  background: rgba(255, 176, 32, 0.08);
  border: 1px solid rgba(255, 176, 32, 0.25);
  color: rgba(255, 255, 255, 0.82);
  font-size: 15.5px;
}

.io-chal__fix {
  padding: 20px 22px;
  border-radius: 16px;
  background: rgba(0, 176, 177, 0.1);
  border: 1px solid rgba(0, 176, 177, 0.3);
  opacity: 0.35;
}

.io-chal__panel.is-active .io-chal__fix {
  animation: io-fix-on 0.6s ease 1.7s forwards;
}

@keyframes io-fix-on {
  to {
    opacity: 1;
    box-shadow: 0 0 0 4px rgba(0, 176, 177, 0.15), 0 0 30px rgba(0, 176, 177, 0.18);
  }
}

.io-page .io-chal__fix h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--io-teal-lt);
  font-size: 15px;
  font-weight: 700;
}

.io-chal__fix p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 15.5px;
}

/* below 992px: no list, every panel is its own card */
@media (max-width: 991px) {
  .io-chal__console {
    grid-template-columns: 1fr;
    padding: 0;
    border: 0;
    background: none;
  }

  .io-chal__alerts {
    display: none;
  }

  .io-chal__screen {
    display: grid;
    gap: 16px;
    padding: 0;
    background: none;
    overflow: visible;
  }

  .io-chal__screen .io-pcb {
    display: none;
  }

  .io-chal__panel {
    padding: 22px;
    border-radius: 22px;
    background:
      radial-gradient(ellipse at 100% 0%, rgba(0, 176, 177, 0.22), transparent 55%),
      var(--io-ink);
  }
}

@media (max-width: 575px) {
  .io-chal__panel {
    padding: 18px;
    gap: 16px;
  }

  .io-chal__panel-head {
    flex-wrap: wrap;
    gap: 12px;
  }

  .io-chal__panel-icon {
    width: 46px;
    height: 46px;
    font-size: 22px;
  }

  .io-chal__status {
    margin-left: 0;
    width: 100%;
  }

  .io-chal__status > span {
    justify-self: start;
  }

  .io-chal__scope {
    height: auto;
    aspect-ratio: 3 / 1;
  }

  /* the 600-wide diagram renders at ~half size here; inline sizes need !important to lift */
  .io-v text:not(.keep) {
    font-size: 21px !important;
  }

  .io-chal__io {
    grid-template-columns: 1fr;
  }

  .io-page .io-chal__issue,
  .io-chal__fix {
    padding: 16px 18px;
  }
}

/* ============================================================
   FEATURES - LED board powers on in sequence
   ============================================================ */
.io-feat {
  padding: 110px 0;
  background: var(--io-mist);
}

.io-feat__board {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  max-width: 1140px;
  margin: 0 auto;
  padding: 48px 40px;
  border-radius: 30px;
  list-style: none;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(0, 176, 177, 0.25), transparent 60%),
    var(--io-ink);
  box-shadow: 0 30px 60px rgba(7, 43, 48, 0.2);
  overflow: hidden;
  isolation: isolate;
}

.io-feat__board::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--io-pcb) 0 0 / 240px;
  opacity: 0.12;
}

.io-feat__chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(143, 227, 223, 0.18);
  font-weight: 600;
  font-size: 15px;
  color: #fff;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    border-color 0.3s ease,
    transform 0.3s var(--io-ease);
}

.io-feat__chip .io-led {
  background: #2f5257;
  box-shadow: none;
  transition:
    background 0.3s ease,
    box-shadow 0.3s ease;
}

.io-feat__board.is-on .io-feat__chip .io-led {
  background: var(--io-teal);
  box-shadow: 0 0 0 3px rgba(0, 176, 177, 0.2), 0 0 10px var(--io-teal);
  transition-delay: calc(var(--i) * 60ms);
}

:where(.io-anim) .io-feat__chip {
  opacity: 0.35;
}

.io-feat__board.is-on .io-feat__chip {
  animation: io-power 0.5s ease both;
  animation-delay: calc(var(--i) * 60ms);
}

@keyframes io-power {
  0% {
    opacity: 0.35;
  }
  40% {
    opacity: 1;
  }
  55% {
    opacity: 0.6;
  }
  100% {
    opacity: 1;
  }
}

.io-feat__chip:hover {
  background: var(--io-teal);
  border-color: var(--io-teal);
  color: #fff;
  transform: translateY(-3px);
}

/* ============================================================
   ADVANCED TECH - dark, circuit border on hover
   ============================================================ */
.io-adv {
  padding: 110px 0;
  background: var(--io-ink);
  overflow: hidden;
}

.io-adv__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(143, 227, 223, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 227, 223, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 75%);
}

.io-adv .io-title {
  color: #fff;
}

.io-adv .io-lead {
  color: rgba(255, 255, 255, 0.72);
}

.io-adv__grid-cards {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

@property --io-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

.io-adv__card {
  position: relative;
  padding: 28px 24px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(143, 227, 223, 0.14);
  transition:
    background 0.4s ease,
    transform 0.45s var(--io-ease);
}

/* travelling light round the border */
.io-adv__card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1.5px;
  background: conic-gradient(from var(--io-angle), transparent 0 70%, var(--io-teal) 85%, var(--io-amber) 92%, transparent);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
  animation: io-angle 3s linear infinite;
  pointer-events: none;
}

@keyframes io-angle {
  to {
    --io-angle: 360deg;
  }
}

.io-adv__card:hover {
  background: rgba(0, 176, 177, 0.08);
  transform: translateY(-6px);
}

.io-adv__card:hover::before {
  opacity: 1;
}

.io-adv__icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 22px;
  border-radius: 16px;
  background: linear-gradient(140deg, var(--io-teal), var(--io-teal-dk));
  box-shadow: 0 10px 24px rgba(0, 176, 177, 0.3);
}

.io-adv__icon img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.io-page .io-adv__card h3 {
  color: #fff;
  font-size: 19px;
  margin-bottom: 10px;
}

.io-adv__card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
}

/* ============================================================
   CTA - intelligence (ocean photo)
   ============================================================ */
.io-intel {
  padding: 140px 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.75) 45%, rgba(255, 255, 255, 0) 75%),
    var(--io-intel-bg) center / cover no-repeat;
}

.io-intel__copy {
  max-width: 560px;
}

.io-page .io-intel__copy h2 {
  font-size: clamp(28px, 3.2vw, 42px);
  font-stretch: 118%;
  line-height: 1.1;
}

.io-intel__copy p {
  margin: 18px 0 30px;
  font-size: 17px;
}

/* ============================================================
   TECH STACK - protocol layers
   ============================================================ */
.io-stack {
  padding: 110px 0;
}

.io-stack__layers {
  border-radius: 26px;
  border: 1px solid var(--io-line);
  overflow: hidden;
}

.io-stack__layer {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  align-items: center;
  padding: 22px 30px;
  transition: background 0.3s ease;
}

.io-stack__layer + .io-stack__layer {
  border-top: 1px solid var(--io-line);
}

.io-stack__layer:hover {
  background: var(--io-mist);
}

.io-page .io-stack__layer h3 {
  position: relative;
  padding-left: 20px;
  font-size: 18px;
}

.io-stack__layer h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -4.5px;
  border-radius: 2px;
  background: var(--io-teal);
  transition: transform 0.4s var(--io-ease);
}

.io-stack__layer:hover h3::before {
  transform: rotate(45deg) scale(1.2);
}

.io-stack__layer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.io-stack__layer li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 9px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--io-line);
  font-weight: 600;
  font-size: 15px;
  color: var(--io-ink);
  transition:
    border-color 0.3s ease,
    transform 0.3s var(--io-ease),
    box-shadow 0.3s ease;
}

.io-stack__layer li:hover {
  border-color: var(--io-teal);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(7, 43, 48, 0.08);
}

.io-stack__layer li img,
.io-stack__layer li i {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.io-stack__layer li i {
  border-radius: 50%;
  background: var(--io-teal-bg);
  color: var(--io-teal-dk);
  font-size: 16px;
}

/* ============================================================
   PROCESS - data pipeline: packets stream down the lit trace
   ============================================================ */
.io-proc {
  padding: 110px 0;
  background: var(--io-mist);
}

.io-proc__track {
  --p: 0;
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
}

.io-proc__line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 4px;
  margin-left: -2px;
  border-radius: 4px;
  background: var(--io-line);
}

.io-proc__fill {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, var(--io-teal-lt), var(--io-teal));
  transform: scaleY(var(--p));
  transform-origin: top;
}

/* packets travelling down the lit part only */
.io-proc__stream {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0 6px, transparent 6px 24px);
  clip-path: inset(0 0 calc((1 - var(--p)) * 100%) 0);
  animation: io-stream 0.9s linear infinite;
}

@keyframes io-stream {
  to {
    background-position: 0 24px;
  }
}

.io-proc__dot {
  position: absolute;
  left: 50%;
  top: calc(var(--p) * 100%);
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border-radius: 50%;
  background: var(--io-amber);
  box-shadow:
    0 0 0 6px rgba(255, 176, 32, 0.25),
    0 0 18px var(--io-amber);
}

.io-proc__list {
  display: grid;
  gap: 40px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.io-proc__step {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 120px;
}

.io-proc__node {
  position: absolute;
  left: 50%;
  top: 24px;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 68px;
  height: 68px;
  margin-left: -34px;
  border-radius: 20px;
  background: #fff;
  border: 2px solid var(--io-line);
  transform: rotate(45deg);
  transition:
    border-color 0.4s ease,
    box-shadow 0.4s ease,
    background 0.4s ease;
}

.io-proc__node img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  transform: rotate(-45deg);
  filter: grayscale(1) opacity(0.5);
  transition: filter 0.4s ease;
}

.io-proc__step.is-lit .io-proc__node {
  border-color: var(--io-teal);
  box-shadow: 0 0 0 8px rgba(0, 176, 177, 0.14);
}

.io-proc__step.is-lit .io-proc__node img {
  filter: none;
}

.io-proc__step.is-current .io-proc__node::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 22px;
  border: 2px solid var(--io-teal);
  animation: io-ping 1.8s var(--io-ease) infinite;
}

.io-proc__card {
  position: relative;
  grid-column: 1;
  padding: 24px 28px 26px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--io-line);
  opacity: 0.45;
  translate: -18px 0;
  transition:
    opacity 0.6s var(--io-ease),
    translate 0.6s var(--io-ease),
    box-shadow 0.6s ease,
    border-color 0.6s ease;
}

.io-proc__step:nth-child(even) .io-proc__card {
  grid-column: 2;
  translate: 18px 0;
}

/* trace from the card edge to its node */
.io-proc__card::before {
  content: "";
  position: absolute;
  top: 57px;
  right: -26px;
  width: 26px;
  height: 2px;
  background: var(--io-line);
  transition: background 0.4s ease;
}

.io-proc__step:nth-child(even) .io-proc__card::before {
  right: auto;
  left: -26px;
}

.io-proc__step.is-lit .io-proc__card {
  opacity: 1;
  translate: 0 0;
  box-shadow: 0 20px 40px rgba(7, 43, 48, 0.08);
}

.io-proc__step.is-lit .io-proc__card::before {
  background: var(--io-teal);
}

.io-proc__step.is-current .io-proc__card {
  border-color: var(--io-teal);
  box-shadow:
    0 0 0 4px rgba(0, 176, 177, 0.12),
    0 24px 44px rgba(7, 43, 48, 0.12);
}

.io-proc__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.io-proc__num {
  font-family: var(--io-display);
  font-stretch: 125%;
  font-weight: 800;
  font-size: 30px;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.2px var(--io-teal);
}

.io-proc__state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  background: var(--io-teal-bg);
  color: var(--io-teal-dk);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.io-proc__state .io-led {
  width: 7px;
  height: 7px;
  box-shadow: none;
}

.io-proc__state-now {
  display: none;
}

.io-proc__step.is-lit .io-proc__state {
  opacity: 1;
}

.io-proc__step.is-current .io-proc__state {
  background: #fff3dc;
  color: #9a6400;
}

.io-proc__step.is-current .io-proc__state .io-led {
  background: var(--io-amber);
  animation: io-blink 1s steps(1) infinite;
}

.io-proc__step.is-current .io-proc__state-now {
  display: inline;
}

.io-proc__step.is-current .io-proc__state-done {
  display: none;
}

.io-page .io-proc__card h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.io-proc__card p {
  font-size: 15.5px;
}

@media (max-width: 991px) {
  .io-proc__line {
    left: 34px;
  }

  .io-proc__node {
    left: 0;
    margin-left: 0;
  }

  .io-proc__step,
  .io-proc__step:nth-child(even) {
    grid-template-columns: 1fr;
    padding-left: 96px;
  }

  .io-proc__step .io-proc__card,
  .io-proc__step:nth-child(even) .io-proc__card {
    grid-column: 1;
    translate: 14px 0;
  }

  .io-proc__step .io-proc__card::before,
  .io-proc__step:nth-child(even) .io-proc__card::before {
    left: -24px;
    right: auto;
    width: 24px;
  }
}

@media (max-width: 575px) {
  .io-proc__line {
    left: 23px;
  }

  .io-proc__node {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    top: 20px;
  }

  .io-proc__node img {
    width: 24px;
    height: 24px;
  }

  .io-proc__step,
  .io-proc__step:nth-child(even) {
    padding-left: 66px;
  }

  .io-proc__card {
    padding: 20px;
  }

  .io-proc__step .io-proc__card::before,
  .io-proc__step:nth-child(even) .io-proc__card::before {
    top: 43px;
    left: -16px;
    width: 16px;
  }

  .io-proc__top {
    flex-wrap: wrap;
  }
}

/* ============================================================
   WHY CHOOSE - every reason wired into the phone
   ============================================================ */
.io-why {
  padding: 110px 0;
  background:
    radial-gradient(ellipse 60% 70% at 50% 60%, rgba(0, 176, 177, 0.2), transparent 70%),
    var(--io-ink);
  overflow: hidden;
}

.io-why > .container {
  position: relative;
  z-index: 1;
}

.io-why .io-title {
  color: #fff;
}

.io-why .io-lead {
  color: rgba(255, 255, 255, 0.72);
}

.io-why__layout {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 300px 1fr;
  gap: 90px;
  align-items: center;
}

.io-why__wires {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.io-why__wire-base {
  fill: none;
  stroke: rgba(143, 227, 223, 0.22);
  stroke-width: 1.5;
  transition: stroke 0.3s ease, stroke-width 0.3s ease;
}

.io-why__wire-flow {
  fill: none;
  stroke: var(--io-teal);
  stroke-width: 1.5;
  stroke-dasharray: 4 14;
  opacity: 0.6;
  animation: io-dash 1s linear infinite;
  transition: opacity 0.3s ease;
}

.io-why__wire.is-hot .io-why__wire-base {
  stroke: rgba(143, 227, 223, 0.7);
  stroke-width: 2.5;
}

.io-why__wire.is-hot .io-why__wire-flow {
  opacity: 1;
}

.io-why__port {
  fill: var(--io-ink);
  stroke: var(--io-teal);
  stroke-width: 2;
}

.io-why__port--hub {
  fill: var(--io-teal);
  stroke: #fff;
}

.io-why__pkt {
  fill: var(--io-amber);
  filter: drop-shadow(0 0 5px var(--io-amber));
}

.io-why__col {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 20px;
}

.io-why__card {
  position: relative;
  padding: 22px 22px 22px 86px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(143, 227, 223, 0.16);
  backdrop-filter: blur(6px);
  transition:
    border-color 0.35s ease,
    background 0.35s ease,
    transform 0.45s var(--io-ease);
}

.io-why__card:hover {
  border-color: var(--io-teal);
  background: rgba(0, 176, 177, 0.1);
  transform: translateX(var(--io-nudge, -6px));
}

.io-why__col--r .io-why__card {
  --io-nudge: 6px;
}

.io-why__icon {
  position: absolute;
  left: 22px;
  top: 22px;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(140deg, var(--io-teal), var(--io-teal-dk));
  box-shadow: 0 8px 20px rgba(0, 176, 177, 0.3);
}

.io-why__icon img {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

.io-page .io-why__card h3 {
  color: #fff;
  font-size: 18px;
  margin-bottom: 8px;
}

.io-why__card p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
}

.io-why__media {
  position: relative;
  z-index: 1;
  text-align: center;
}

.io-why__media img {
  position: relative;
  width: 100%;
  height: auto;
  -webkit-mask-image: linear-gradient(180deg, #000 80%, transparent);
  mask-image: linear-gradient(180deg, #000 80%, transparent);
}

/* hub rings behind the phone */
.io-why__halo {
  position: absolute;
  left: 50%;
  top: 42%;
  width: 150%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 176, 177, 0.3), transparent 62%);
  transform: translate(-50%, -50%);
}

.io-why__halo i {
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px dashed rgba(143, 227, 223, 0.35);
  animation: io-spin 50s linear infinite;
}

.io-why__halo i + i {
  inset: 26%;
  border-style: solid;
  border-color: rgba(143, 227, 223, 0.18);
  animation-direction: reverse;
  animation-duration: 30s;
}

@media (max-width: 1199px) {
  .io-why__layout {
    grid-template-columns: 1fr 240px 1fr;
    gap: 56px;
  }

  .io-why__card {
    padding: 78px 20px 22px;
  }
}

/* no room for wires: phone on top, reasons hang off a bus line */
@media (max-width: 991px) {
  .io-why__wires {
    display: none;
  }

  .io-why__layout {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .io-why__media {
    grid-column: 1 / -1;
    grid-row: 1;
    width: 240px;
    margin: 0 auto;
  }

  .io-why__col {
    grid-row: 2;
    padding-left: 22px;
  }

  .io-why__col::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--io-teal), rgba(0, 176, 177, 0.15));
  }

  .io-why__card::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 44px;
    width: 22px;
    height: 2px;
    background: var(--io-teal);
  }

  .io-why__card {
    padding: 22px 20px 22px 84px;
  }

  .io-why__card:hover {
    transform: translateX(4px);
  }
}

@media (max-width: 767px) {
  .io-why__layout {
    grid-template-columns: 1fr;
  }

  .io-why__col {
    grid-row: auto;
  }
}

@media (max-width: 575px) {
  .io-why__card {
    padding: 78px 18px 20px;
  }
}

/* ============================================================
   FINAL CTA - concentric waves
   ============================================================ */
.io-final {
  padding: 110px 0;
}

.io-final__card {
  position: relative;
  padding: 90px 40px;
  border-radius: 34px;
  background:
    radial-gradient(circle at 50% 120%, rgba(0, 176, 177, 0.55), transparent 60%),
    var(--io-ink);
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}

.io-final__card .io-net {
  z-index: -1;
  opacity: 0.8;
  -webkit-mask-image: radial-gradient(ellipse 45% 55% at 50% 45%, rgba(0, 0, 0, 0.25), #000 100%);
  mask-image: radial-gradient(ellipse 45% 55% at 50% 45%, rgba(0, 0, 0, 0.25), #000 100%);
}

.io-final__waves {
  position: absolute;
  left: 50%;
  bottom: -200px;
  z-index: -1;
}

.io-final__waves i {
  position: absolute;
  left: -200px;
  top: -200px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 1.5px solid rgba(143, 227, 223, 0.5);
  animation: io-wave 6s linear infinite;
}

.io-final__waves i:nth-child(2) {
  animation-delay: 1.5s;
}

.io-final__waves i:nth-child(3) {
  animation-delay: 3s;
}

.io-final__waves i:nth-child(4) {
  animation-delay: 4.5s;
}

@keyframes io-wave {
  from {
    transform: scale(0.4);
    opacity: 1;
  }
  to {
    transform: scale(3.4);
    opacity: 0;
  }
}

.io-page .io-final__card h2 {
  max-width: 760px;
  margin: 0 auto;
  color: #fff;
  font-size: clamp(28px, 3.6vw, 48px);
  font-stretch: 122%;
  font-weight: 800;
  line-height: 1.08;
}

.io-final__card p {
  max-width: 620px;
  margin: 20px auto 34px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 17px;
}

/* ============================================================
   FAQ
   ============================================================ */
.io-faq {
  padding: 30px 0 120px;
}

.io-faq__layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.io-faq__aside {
  position: sticky;
  top: 120px;
}

.io-faq__promo {
  margin-top: 28px;
  padding: 30px;
  border-radius: 24px;
  background:
    radial-gradient(circle at 100% 0%, rgba(0, 176, 177, 0.4), transparent 55%),
    var(--io-ink);
}

.io-page .io-faq__promo h3 {
  color: #fff;
  font-size: 22px;
}

.io-faq__promo p {
  margin: 10px 0 24px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15.5px;
}

.io-faq__list {
  display: grid;
  gap: 12px;
}

.io-faq__item {
  border-radius: 18px;
  border: 1px solid var(--io-line);
  background: #fff;
  transition:
    border-color 0.3s ease,
    background 0.3s ease;
}

.io-faq__item[open] {
  border-color: rgba(0, 176, 177, 0.5);
  background: var(--io-mist);
}

.io-faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 22px;
  font-weight: 600;
  font-size: 16.5px;
  line-height: 1.4;
  color: var(--io-ink);
  cursor: pointer;
  list-style: none;
}

.io-faq__q::-webkit-details-marker {
  display: none;
}

.io-faq__q:focus-visible {
  outline: 3px solid var(--io-teal);
  outline-offset: 2px;
  border-radius: 18px;
}

.io-faq__mark {
  position: relative;
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--io-teal-bg);
  transition:
    background 0.3s ease,
    transform 0.4s var(--io-ease);
}

.io-faq__mark::before,
.io-faq__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 2px;
  margin: -1px 0 0 -6px;
  border-radius: 2px;
  background: var(--io-teal-dk);
  transition: transform 0.4s var(--io-ease);
}

.io-faq__mark::after {
  transform: rotate(90deg);
}

.io-faq__item[open] .io-faq__mark {
  background: var(--io-teal);
  transform: rotate(180deg);
}

.io-faq__item[open] .io-faq__mark::before,
.io-faq__item[open] .io-faq__mark::after {
  background: #fff;
}

.io-faq__item[open] .io-faq__mark::after {
  transform: rotate(0deg);
}

.io-faq__a-wrap {
  padding: 0 22px 20px;
}

.io-faq__item[open] .io-faq__a-wrap {
  animation: io-rise 0.45s var(--io-ease);
}

.io-faq__a {
  font-size: 15.5px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1199px) {
  /* no side room for edge devices; the mesh carries the hero alone */
  .io-hero__devices {
    display: none;
  }

  .io-svc__grid,
  .io-adv__grid-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 991px) {
  .io-hero {
    padding: 140px 0 0;
  }

  .io-feed {
    margin-top: 80px;
  }

  .io-head--split,
  .io-comp__layout,
  .io-faq__layout,
  .io-case {
    grid-template-columns: 1fr;
  }

  .io-head--split {
    gap: 16px;
    text-align: center;
  }

  .io-hero__caps {
    grid-template-columns: repeat(2, max-content);
  }

  .io-band__card {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0 28px;
    text-align: center;
  }

  .io-band__media img {
    width: 200px;
  }

  .io-band__copy {
    padding: 28px 0 48px;
  }

  .io-case {
    gap: 24px;
    padding: 20px 8px 8px;
  }

  .io-case__media {
    max-width: 520px;
    width: 100%;
    margin: 0 auto;
  }

  .io-comp__intro,
  .io-faq__aside {
    position: static;
  }

  .io-comp__radar {
    display: none;
  }

  .io-comp__layout {
    gap: 36px;
  }

  .io-secure {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    padding: 32px 26px;
  }

  .io-intel {
    padding: 100px 0;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.82) 60%, rgba(255, 255, 255, 0.4) 100%),
      var(--io-intel-bg) 70% center / cover no-repeat;
  }

  .io-intel__copy {
    margin: 0 auto;
    text-align: center;
  }

  .io-stack__layer {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

@media (max-width: 767px) {
  .io-svc,
  .io-cases,
  .io-ind,
  .io-comp,
  .io-chal,
  .io-feat,
  .io-adv,
  .io-stack,
  .io-proc,
  .io-why {
    padding: 80px 0;
  }

  .io-head {
    margin-bottom: 40px;
  }

  .io-trust__list {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 28px;
  }

  .io-trust__item:nth-child(3) {
    border-left: 0;
  }

  .io-svc__grid,
  .io-adv__grid-cards,

  .io-cases__tab {
    font-size: 15px;
    padding: 14px 6px;
  }

  .io-feat__chip {
    padding: 10px 16px;
    font-size: 14px;
  }

  .io-comp__item {
    grid-template-columns: 40px 1fr 26px;
    gap: 12px;
    padding: 14px 16px;
  }

  .io-comp__icon {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 575px) {

  .io-feat__board {
    padding: 28px 16px;
    gap: 8px;
    border-radius: 22px;
  }

  .io-feed__msg {
    font-size: 12px;
  }

  .io-hero__caps {
    grid-template-columns: 1fr;
    justify-items: start;
    width: max-content;
    max-width: 100%;
    margin-inline: auto;
  }

  .io-band__card,
  .io-final__card {
    border-radius: 24px;
  }

  .io-final__card {
    padding: 64px 20px;
  }

  .io-case__step {
    padding: 16px 16px 16px 18px;
  }

  .io-secure__lock {
    width: 76px;
    height: 76px;
  }

  .io-stack__layer {
    padding: 20px 18px;
  }

  .io-faq__q {
    padding: 18px;
    font-size: 15.5px;
  }

  .io-faq__a-wrap {
    padding: 0 18px 18px;
  }

  .io-btn {
    --io-btn-pad: 20px;
    width: 100%;
  }
}

@media (max-width: 380px) {
  .io-btn__label {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .io-page *,
  .io-page *::before,
  .io-page *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }

  :where(.io-anim) .io-reveal,
  :where(.io-anim) .io-feat__chip {
    opacity: 1;
  }

  /* challenge diagrams: show the solved state, statically */
  .io-v .b {
    display: none;
  }

  .io-v .a,
  .io-v .swarm {
    opacity: 1;
  }

  .io-chal__status-bad {
    display: none !important;
  }

  .io-chal__status-ok,
  .io-chal__fix {
    opacity: 1;
  }
}