/* =========================================================
   IOT CSS - Premium Version
   Page: services/iot.html
   Header, banner and footer remain controlled by common CSS
========================================================= */

:root {
  --iot-purple: #7c2cff;
  --iot-purple-dark: #34106f;
  --iot-purple-soft: #f6f0ff;
  --iot-violet: #a84dff;
  --iot-blue: #0ea5ff;
  --iot-cyan: #18d2ff;
  --iot-green: #20d58a;
  --iot-orange: #ff9f1c;
  --iot-pink: #ff4fd8;
  --iot-navy: #071528;
  --iot-ink: #1f2433;
  --iot-text: #687083;
  --iot-white: #ffffff;
  --iot-border: rgba(124, 44, 255, 0.14);
  --iot-shadow: 0 28px 80px rgba(31, 12, 84, 0.13);
}

/* Banner */

.iot-services-banner {
  background-image: url("../images/iot-services-banner-desktop.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

/* =========================================================
   Premium Body + 90% Width
========================================================= */

.premium-iot-body {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 8%, rgba(124, 44, 255, 0.11), transparent 24%),
    radial-gradient(circle at 92% 16%, rgba(14, 165, 255, 0.11), transparent 26%),
    radial-gradient(circle at 78% 80%, rgba(32, 213, 138, 0.07), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #fbf8ff 42%, #ffffff 100%);
}

.premium-iot-body::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(124, 44, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 255, 0.055) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(180deg, transparent 0%, #000 15%, #000 85%, transparent 100%);
}

.premium-iot-body > section {
  position: relative;
  z-index: 1;
}

@media (min-width: 1200px) {
  .premium-iot-body > section > .container,
  .iot-intro-section > .container,
  .iot-strip-section > .container,
  .iot-features-section > .container,
  .iot-details-section > .container,
  .iot-cta-section > .container {
    width: 90% !important;
    max-width: 90% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }
}

@media (max-width: 1199px) {
  .premium-iot-body > section > .container,
  .iot-intro-section > .container,
  .iot-strip-section > .container,
  .iot-features-section > .container,
  .iot-details-section > .container,
  .iot-cta-section > .container {
    width: 94% !important;
    max-width: 94% !important;
  }
}

/* Common */

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--iot-purple);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.3px;
  margin-bottom: 14px;
}

.section-kicker span {
  width: 18px;
  height: 8px;
  display: inline-block;
  border-radius: 30px;
  background: linear-gradient(135deg, var(--iot-purple), var(--iot-blue));
  box-shadow: 0 8px 20px rgba(124, 44, 255, 0.25);
}

.iot-intro-content h2,
.iot-section-heading h2,
.iot-detail-card h2,
.iot-cta-card h2 {
  color: var(--iot-ink);
  font-size: clamp(30px, 2.65vw, 48px);
  font-weight: 750;
  line-height: 1.12;
  letter-spacing: -0.9px;
  margin-bottom: 16px;
}

.iot-intro-content p,
.iot-section-heading p,
.iot-feature-card p,
.iot-detail-list li,
.iot-cta-card p {
  color: var(--iot-text);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.72;
}

/* =========================================================
   Intro
========================================================= */

.iot-intro-section {
  padding: 62px 0 22px;
  background: transparent;
}

.iot-intro-card {
  position: relative;
  overflow: hidden;
  padding: 52px;
  border-radius: 38px;
  background:
    radial-gradient(circle at 84% 12%, rgba(14, 165, 255, 0.18), transparent 28%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(248, 243, 255, 0.96));
  border: 1px solid var(--iot-border);
  box-shadow: var(--iot-shadow);
}

.iot-intro-card::before {
  content: "\F1EF";
  position: absolute;
  right: -28px;
  top: -70px;
  font-family: "bootstrap-icons";
  font-size: 260px;
  line-height: 1;
  color: rgba(124, 44, 255, 0.055);
  transform: rotate(-10deg);
}

.iot-intro-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 44px;
  align-items: center;
}

.iot-service-badge {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  margin-bottom: 16px;
  border-radius: 999px;
  color: var(--iot-purple);
  font-size: 13px;
  font-weight: 800;
  background: var(--iot-purple-soft);
  border: 1px solid var(--iot-border);
}

.iot-service-badge i {
  color: var(--iot-blue);
}

.iot-intro-content h2 {
  color: var(--iot-purple);
  max-width: 850px;
}

.iot-intro-content h3 {
  color: var(--iot-ink);
  font-size: 25px;
  font-weight: 750;
  line-height: 1.35;
  margin-bottom: 18px;
}

.iot-intro-content p {
  max-width: 900px;
  margin-bottom: 16px;
}

.iot-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.iot-btn {
  min-height: 50px;
  padding: 13px 20px;
  border-radius: 16px;
  font-size: 15px;
  font-weight: 750;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.32s ease;
}

.iot-btn-primary {
  background: linear-gradient(135deg, var(--iot-purple), var(--iot-blue));
  color: #ffffff;
  box-shadow: 0 18px 40px rgba(124, 44, 255, 0.24);
}

.iot-btn-primary:hover {
  color: #ffffff;
  transform: translateY(-4px);
  box-shadow: 0 26px 58px rgba(124, 44, 255, 0.30);
}

.iot-btn-outline {
  background: #ffffff;
  color: var(--iot-purple);
  border: 1px solid var(--iot-border);
  box-shadow: 0 12px 30px rgba(31, 12, 84, 0.08);
}

.iot-btn-outline:hover {
  color: #ffffff;
  background: var(--iot-navy);
  transform: translateY(-4px);
}

/* IoT Dashboard Visual */

.iot-intro-visual {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.iot-device-dashboard {
  position: relative;
  width: min(100%, 520px);
  min-height: 420px;
  padding: 22px;
  border-radius: 38px;
  background:
    radial-gradient(circle at 18% 18%, rgba(32, 213, 138, 0.24), transparent 32%),
    radial-gradient(circle at 86% 20%, rgba(14, 165, 255, 0.28), transparent 30%),
    linear-gradient(135deg, #061527, #18083c 54%, #052b35);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 34px 90px rgba(7,21,40,0.30);
}

.iot-device-dashboard::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.65;
}

.iot-window-top,
.iot-device-core,
.iot-sensor-grid,
.iot-temp-lines {
  position: relative;
  z-index: 2;
}

.iot-window-top {
  display: flex;
  gap: 8px;
  margin-bottom: 38px;
}

.iot-window-top span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255,255,255,0.42);
}

.iot-device-core {
  min-height: 155px;
  padding: 24px;
  border-radius: 28px;
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  gap: 20px;
}

.iot-device-icon {
  width: 92px;
  height: 92px;
  min-width: 92px;
  border-radius: 30px;
  background: linear-gradient(135deg, var(--iot-purple), var(--iot-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 42px;
  box-shadow: 0 22px 55px rgba(14,165,255,0.22);
}

.iot-device-core strong,
.iot-device-core small {
  display: block;
}

.iot-device-core strong {
  color: #ffffff;
  font-size: 18px;
}

.iot-device-core small {
  color: rgba(255,255,255,0.68);
  margin-top: 5px;
}

.iot-sensor-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.iot-sensor-grid span {
  min-height: 62px;
  padding: 15px;
  border-radius: 18px;
  color: #ffffff;
  background: rgba(255,255,255,0.075);
  border: 1px solid rgba(255,255,255,0.10);
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  font-weight: 750;
}

.iot-sensor-grid i {
  color: var(--iot-cyan);
  font-size: 20px;
}

.iot-temp-lines {
  display: grid;
  gap: 13px;
  margin-top: 18px;
}

.iot-temp-lines span {
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--iot-cyan), var(--iot-purple));
}

.iot-floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 235px;
  padding: 14px 16px;
  border-radius: 22px;
  color: #ffffff;
  background: rgba(7, 21, 40, 0.92);
  box-shadow: 0 22px 54px rgba(7, 21, 40, 0.28);
  backdrop-filter: blur(10px);
  z-index: 5;
}

.iot-floating-card i {
  width: 42px;
  height: 42px;
  border-radius: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--iot-purple), var(--iot-blue));
  font-size: 21px;
}

.iot-floating-card strong,
.iot-floating-card span {
  display: block;
}

.iot-floating-card strong {
  font-size: 14px;
}

.iot-floating-card span {
  color: rgba(255,255,255,0.70);
  font-size: 12px;
}

.iot-floating-card-1 {
  left: -24px;
  top: 72px;
}

.iot-floating-card-2 {
  right: -18px;
  bottom: 54px;
}

/* =========================================================
   Dark Capability Strip
========================================================= */

.iot-strip-section {
  padding: 18px 0 30px;
  background: transparent;
}

.iot-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  padding: 16px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 10% 15%, rgba(124, 44, 255, 0.55), transparent 28%),
    radial-gradient(circle at 86% 24%, rgba(14, 165, 255, 0.30), transparent 30%),
    linear-gradient(135deg, #061527, #18083c 50%, #052b35);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 30px 80px rgba(7, 21, 40, 0.24);
}

.iot-strip-item {
  min-height: 126px;
  padding: 20px;
  border-radius: 23px;
  color: #ffffff;
  background: rgba(255,255,255,0.065);
  border: 1px solid rgba(255,255,255,0.10);
  transition: all 0.3s ease;
}

.iot-strip-item:hover {
  transform: translateY(-5px);
  background: linear-gradient(135deg, rgba(124,44,255,0.72), rgba(14,165,255,0.30));
}

.iot-strip-item i {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 19px;
  font-size: 28px;
  color: #ffffff;
  background: rgba(255,255,255,0.12);
}

.iot-strip-item strong,
.iot-strip-item span {
  display: block;
}

.iot-strip-item strong {
  font-size: 16px;
  line-height: 1.25;
}

.iot-strip-item span {
  margin-top: 5px;
  font-size: 12px;
  line-height: 1.45;
  color: rgba(255,255,255,0.72);
}

/* =========================================================
   Features - Solid Color Cards
========================================================= */

.iot-features-section {
  padding: 58px 0 66px;
  background: transparent;
}

.iot-section-heading {
  max-width: 900px;
  margin: 0 auto 38px;
}

.iot-section-heading h2 {
  color: var(--iot-purple);
}

.iot-section-heading p {
  max-width: 830px;
  margin: 0 auto;
}

.iot-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.iot-feature-card {
  position: relative;
  min-height: 310px;
  overflow: hidden;
  border-radius: 30px;
  padding: 34px 24px;
  text-align: left;
  border: none;
  box-shadow: 0 22px 55px rgba(31, 12, 84, 0.16);
  transition: all 0.32s ease;
}

.iot-feature-card::before {
  content: "";
  position: absolute;
  right: -46px;
  top: -46px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255,255,255,0.13);
}

.iot-feature-card:nth-child(1) { background: linear-gradient(135deg, #7c2cff, #5b18d6); }
.iot-feature-card:nth-child(2) { background: linear-gradient(135deg, #0ea5ff, #0077d9); }
.iot-feature-card:nth-child(3) { background: linear-gradient(135deg, #20d58a, #059669); }
.iot-feature-card:nth-child(4) { background: linear-gradient(135deg, #ff4fd8, #c026d3); }
.iot-feature-card:nth-child(5) { background: linear-gradient(135deg, #ff9f1c, #f97316); }
.iot-feature-card:nth-child(6) { background: linear-gradient(135deg, #243b6b, #0f172a); }
.iot-feature-card:nth-child(7) { background: linear-gradient(135deg, #009688, #00695c); }
.iot-feature-card:nth-child(8) { background: linear-gradient(135deg, #4f46e5, #1e1b4b); }

.iot-feature-icon {
  position: relative;
  z-index: 2;
  width: 74px;
  height: 74px;
  margin: 0 0 24px;
  border-radius: 24px;
  padding: 0;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.16);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 33px;
}

.iot-feature-card h3,
.iot-feature-card p {
  position: relative;
  z-index: 2;
  color: #ffffff;
}

.iot-feature-card h3 {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.32;
  margin-bottom: 13px;
  text-transform: uppercase;
}

.iot-feature-card p {
  color: rgba(255,255,255,0.92);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 0;
}

.iot-feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 80px rgba(31,12,84,0.22);
}

/* =========================================================
   Details - Solid Color Blocks
========================================================= */

.iot-details-section {
  padding: 58px 0 66px;
  background: transparent;
}

.iot-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.iot-detail-card {
  position: relative;
  overflow: hidden;
  min-height: 100%;
  padding: 38px;
  border-radius: 32px;
  color: #ffffff;
  box-shadow: 0 28px 70px rgba(31,12,84,0.16);
}

.iot-detail-card:nth-child(1) {
  background: linear-gradient(135deg, #7c2cff, #5b18d6);
}

.iot-detail-card:nth-child(2) {
  background: linear-gradient(135deg, #0ea5ff, #0077d9);
}

.iot-detail-card::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: rgba(255,255,255,0.14);
}

.iot-detail-icon {
  position: relative;
  z-index: 2;
  width: 74px;
  height: 74px;
  margin-bottom: 22px;
  border-radius: 24px;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.16);
}

.iot-detail-card .section-kicker,
.iot-detail-card h2,
.iot-detail-card .iot-detail-list,
.iot-detail-card .iot-detail-list li,
.iot-detail-card .iot-detail-list strong {
  position: relative;
  z-index: 2;
  color: #ffffff;
}

.iot-detail-card .section-kicker span {
  background: #ffffff;
  box-shadow: none;
}

.iot-detail-card h2 {
  margin-bottom: 18px;
}

.iot-detail-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
}

.iot-detail-list li {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 14px;
  padding: 13px 14px;
  margin-bottom: 10px;
  border-radius: 15px;
  color: rgba(255,255,255,0.92);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.12);
}

.iot-detail-list li:last-child {
  margin-bottom: 0;
}

.iot-detail-list i {
  color: #ffffff;
  font-size: 21px;
  line-height: 1.35;
}

/* =========================================================
   CTA
========================================================= */

.iot-cta-section {
  padding: 0 0 90px;
  background: transparent;
}

.iot-cta-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 26px;
  align-items: center;
  padding: 42px 48px;
  border-radius: 34px;
  background:
    radial-gradient(circle at 10% 15%, rgba(124,44,255,0.55), transparent 28%),
    radial-gradient(circle at 86% 24%, rgba(14,165,255,0.30), transparent 30%),
    linear-gradient(135deg, #061527, #18083c 50%, #052b35);
  border: 1px solid rgba(255,255,255,0.10);
  box-shadow: 0 34px 90px rgba(7,21,40,0.26);
}

.iot-cta-card::before {
  content: "\F1EF";
  position: absolute;
  right: 28px;
  bottom: -62px;
  font-family: "bootstrap-icons";
  font-size: 230px;
  color: rgba(255,255,255,0.04);
  line-height: 1;
}

.iot-cta-card > * {
  position: relative;
  z-index: 2;
}

.iot-cta-icon {
  width: 96px;
  height: 96px;
  border-radius: 30px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--iot-purple), var(--iot-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  box-shadow: 0 24px 56px rgba(14,165,255,0.22);
}

.iot-cta-card .section-kicker,
.iot-cta-card h2,
.iot-cta-card p {
  color: #ffffff;
}

.iot-cta-card .section-kicker span {
  background: #ffffff;
  box-shadow: none;
}

.iot-cta-card h2 {
  margin-bottom: 12px;
}

.iot-cta-card p {
  color: rgba(255,255,255,0.82);
  margin: 0;
  max-width: 850px;
}

.iot-cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 180px;
}

.iot-cta-link {
  min-height: 50px;
  padding: 13px 18px;
  border-radius: 16px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  text-decoration: none;
  transition: all 0.32s ease;
}

.iot-cta-link:hover {
  color: #ffffff;
  transform: translateY(-4px);
  background: linear-gradient(135deg, rgba(124,44,255,0.72), rgba(14,165,255,0.28));
}

/* Responsive */

@media (max-width: 1399px) {
  .iot-feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1199px) {
  .iot-intro-grid {
    grid-template-columns: 1fr;
  }

  .iot-intro-visual {
    max-width: 760px;
    width: 100%;
    margin: 0 auto;
  }

  .iot-strip,
  .iot-detail-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .iot-feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .iot-cta-card {
    grid-template-columns: 1fr;
  }

  .iot-cta-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 991px) {
  .iot-services-banner {
    background-image: url("../images/iot-services-banner-mobile.jpg");
    background-position: center center;
  }

  .iot-intro-section {
    padding: 52px 0 18px;
  }

  .iot-intro-card {
    padding: 40px 32px;
  }

  .iot-cta-section {
    padding-bottom: 72px;
  }
}

@media (max-width: 767px) {
  .iot-intro-content h2,
  .iot-section-heading h2,
  .iot-detail-card h2,
  .iot-cta-card h2 {
    font-size: 28px;
  }

  .iot-intro-card,
  .iot-detail-card,
  .iot-cta-card {
    padding: 32px 24px;
    border-radius: 28px;
  }

  .iot-actions {
    width: 100%;
  }

  .iot-btn,
  .iot-cta-link {
    width: 100%;
    justify-content: center;
  }

  .iot-intro-visual {
    min-height: auto;
  }

  .iot-device-dashboard {
    min-height: 390px;
  }

  .iot-floating-card {
    position: relative;
    inset: auto !important;
    width: 100%;
    margin-top: 14px;
  }

  .iot-strip,
  .iot-feature-grid,
  .iot-detail-grid {
    grid-template-columns: 1fr;
  }

  .iot-feature-card {
    min-height: auto;
  }

  .iot-cta-actions {
    width: 100%;
  }
}

@media (max-width: 575px) {
  .iot-services-banner {
    background-image: url("../images/iot-services-banner-mobile.jpg");
    background-position: center top;
  }

  .premium-iot-body > section > .container,
  .iot-intro-section > .container,
  .iot-strip-section > .container,
  .iot-features-section > .container,
  .iot-details-section > .container,
  .iot-cta-section > .container {
    width: 94% !important;
    max-width: 94% !important;
  }

  .iot-intro-section {
    padding: 42px 0 16px;
  }

  .iot-intro-card,
  .iot-detail-card,
  .iot-cta-card {
    padding: 28px 20px;
  }

  .iot-intro-content h2,
  .iot-section-heading h2,
  .iot-detail-card h2,
  .iot-cta-card h2 {
    font-size: 24px;
  }

  .iot-intro-content h3 {
    font-size: 20px;
  }

  .iot-intro-content p,
  .iot-section-heading p,
  .iot-feature-card p,
  .iot-detail-list li,
  .iot-cta-card p {
    font-size: 14px;
  }

  .section-kicker {
    font-size: 11px;
    line-height: 1.45;
  }

  .iot-device-dashboard {
    min-height: 340px;
    padding: 18px;
    border-radius: 30px;
  }

  .iot-device-core {
    align-items: flex-start;
    flex-direction: column;
    min-height: auto;
  }

  .iot-device-icon {
    width: 76px;
    height: 76px;
    min-width: 76px;
    border-radius: 24px;
    font-size: 34px;
  }

  .iot-sensor-grid {
    grid-template-columns: 1fr;
  }

  .iot-feature-card h3 {
    font-size: 18px;
  }

  .iot-detail-list li {
    grid-template-columns: 32px 1fr;
  }

  .iot-cta-icon {
    width: 78px;
    height: 78px;
    border-radius: 24px;
    font-size: 36px;
  }

  .iot-cta-section {
    padding-bottom: 58px;
  }
}


/* =========================================================
   Animated Transmitter Visual
========================================================= */

.iot-intro-visual {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.iot-transmitter-stage {
  position: relative;
  width: min(100%, 540px);
  min-height: 470px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.iot-transmitter-card {
  position: relative;
  z-index: 3;
  width: min(100%, 460px);
  padding: 20px;
  border-radius: 38px;
  background:
    radial-gradient(circle at 20% 18%, rgba(32, 213, 138, 0.22), transparent 30%),
    radial-gradient(circle at 80% 18%, rgba(14, 165, 255, 0.28), transparent 34%),
    linear-gradient(135deg, #061527, #18083c 55%, #042f39);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 34px 95px rgba(7, 21, 40, 0.30);
  overflow: hidden;
}

.iot-transmitter-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.65;
  pointer-events: none;
}

.iot-device-header,
.iot-transmitter-device {
  position: relative;
  z-index: 2;
}

.iot-device-header {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.iot-device-header span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(255,255,255,0.42);
}

.iot-transmitter-device {
  position: relative;
  padding: 26px 22px 22px;
  border-radius: 28px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  min-height: 360px;
}

.iot-transmitter-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.iot-sensor-lights {
  display: inline-flex;
  gap: 9px;
}

.iot-sensor-lights span {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  box-shadow: 0 0 18px currentColor;
  animation: blinkPulse 2.4s infinite ease-in-out;
}

.iot-sensor-lights span:nth-child(1) { background: #20d58a; color: #20d58a; }
.iot-sensor-lights span:nth-child(2) { background: #0ea5ff; color: #0ea5ff; animation-delay: 0.35s; }
.iot-sensor-lights span:nth-child(3) { background: #ff9f1c; color: #ff9f1c; animation-delay: 0.7s; }

.iot-mini-display {
  min-width: 126px;
  padding: 10px 14px;
  border-radius: 18px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.16);
  text-align: right;
}

.iot-mini-display small,
.iot-mini-display strong {
  display: block;
  color: #ffffff;
}

.iot-mini-display small {
  font-size: 11px;
  letter-spacing: 1.2px;
  opacity: 0.75;
}

.iot-mini-display strong {
  font-size: 24px;
  line-height: 1.1;
}

.iot-transmitter-body-core {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin: 10px 0 22px;
}

.iot-transmitter-icon-wrap {
  position: relative;
  width: 118px;
  height: 118px;
  border-radius: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #7c2cff, #0ea5ff);
  box-shadow: 0 24px 55px rgba(14,165,255,0.20);
  margin-bottom: 18px;
}

.iot-transmitter-icon-wrap::before,
.iot-transmitter-icon-wrap::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.30);
  animation: pulseRing 2.2s infinite ease-out;
}

.iot-transmitter-icon-wrap::before {
  inset: -10px;
}

.iot-transmitter-icon-wrap::after {
  inset: -24px;
  animation-delay: 0.8s;
}

.iot-transmitter-icon-wrap i {
  color: #ffffff;
  font-size: 52px;
}

.iot-transmitter-body-core h4 {
  color: #ffffff;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.4px;
  margin-bottom: 6px;
}

.iot-transmitter-body-core p {
  margin: 0;
  color: rgba(255,255,255,0.78);
  font-size: 14px;
  letter-spacing: 0.4px;
}

.iot-metric-pills {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 18px;
}

.iot-metric-pills span {
  min-height: 46px;
  padding: 10px 14px;
  border-radius: 15px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.iot-metric-pills i {
  color: var(--iot-cyan);
  font-size: 18px;
}

.iot-live-bars {
  display: flex;
  align-items: end;
  gap: 10px;
  height: 58px;
}

.iot-live-bars span {
  flex: 1;
  border-radius: 999px 999px 14px 14px;
  background: linear-gradient(180deg, #20d58a, #0ea5ff 55%, #7c2cff);
  animation: equalize 1.8s infinite ease-in-out;
  min-height: 18px;
}

.iot-live-bars span:nth-child(1) { animation-delay: 0s; }
.iot-live-bars span:nth-child(2) { animation-delay: 0.2s; }
.iot-live-bars span:nth-child(3) { animation-delay: 0.4s; }
.iot-live-bars span:nth-child(4) { animation-delay: 0.6s; }

.iot-transmitter-rings {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid rgba(14,165,255,0.18);
  animation: rotateSlow 12s linear infinite;
}

.iot-ring-one {
  width: 430px;
  height: 430px;
}

.iot-ring-two {
  width: 360px;
  height: 360px;
  border-color: rgba(124,44,255,0.20);
  animation-direction: reverse;
  animation-duration: 16s;
}

.iot-ring-three {
  width: 290px;
  height: 290px;
  border-color: rgba(32,213,138,0.18);
  animation-duration: 10s;
}

.iot-signal-dots {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 0 18px currentColor;
  z-index: 1;
  animation: floatDot 3.2s infinite ease-in-out;
}

.dot-one { top: 48px; left: 86px; background: #0ea5ff; color: #0ea5ff; }
.dot-two { top: 96px; right: 70px; background: #20d58a; color: #20d58a; animation-delay: 0.6s; }
.dot-three { bottom: 92px; left: 52px; background: #ff9f1c; color: #ff9f1c; animation-delay: 1.2s; }
.dot-four { bottom: 56px; right: 86px; background: #ff4fd8; color: #ff4fd8; animation-delay: 1.8s; }

.iot-antenna-wave {
  position: absolute;
  left: 50%;
  top: 54px;
  transform: translateX(-50%);
  border: 2px solid rgba(14,165,255,0.30);
  border-bottom: none;
  border-radius: 999px 999px 0 0;
  animation: signalWave 2.4s infinite ease-out;
}

.wave-1 {
  width: 94px;
  height: 48px;
}

.wave-2 {
  width: 132px;
  height: 66px;
  animation-delay: 0.5s;
}

.wave-3 {
  width: 170px;
  height: 84px;
  animation-delay: 1s;
}

@keyframes pulseRing {
  0% { transform: scale(0.96); opacity: 0.7; }
  70% { transform: scale(1.08); opacity: 0.1; }
  100% { transform: scale(1.12); opacity: 0; }
}

@keyframes signalWave {
  0% { opacity: 0.18; transform: translateX(-50%) scale(0.92); }
  55% { opacity: 0.65; }
  100% { opacity: 0; transform: translateX(-50%) scale(1.12); }
}

@keyframes equalize {
  0%, 100% { height: 22px; }
  25% { height: 52px; }
  50% { height: 36px; }
  75% { height: 58px; }
}

@keyframes blinkPulse {
  0%, 100% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes floatDot {
  0%, 100% { transform: translateY(0px) scale(0.95); }
  50% { transform: translateY(-10px) scale(1.1); }
}

@media (max-width: 767px) {
  .iot-intro-visual {
    min-height: auto;
  }

  .iot-transmitter-stage {
    min-height: 420px;
  }

  .iot-transmitter-card {
    width: min(100%, 100%);
    padding: 16px;
    border-radius: 30px;
  }

  .iot-transmitter-device {
    min-height: auto;
    padding: 22px 18px 18px;
  }

  .iot-transmitter-icon-wrap {
    width: 96px;
    height: 96px;
    border-radius: 28px;
  }

  .iot-transmitter-icon-wrap i {
    font-size: 42px;
  }

  .iot-transmitter-body-core h4 {
    font-size: 20px;
  }

  .iot-ring-one { width: 320px; height: 320px; }
  .iot-ring-two { width: 270px; height: 270px; }
  .iot-ring-three { width: 220px; height: 220px; }
}

@media (max-width: 575px) {
  .iot-transmitter-stage {
    min-height: 360px;
  }

  .iot-transmitter-card {
    padding: 14px;
  }

  .iot-transmitter-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .iot-mini-display {
    width: 100%;
    text-align: left;
  }

  .iot-live-bars {
    height: 48px;
  }

  .iot-ring-one { width: 260px; height: 260px; }
  .iot-ring-two { width: 220px; height: 220px; }
  .iot-ring-three { width: 180px; height: 180px; }

  .dot-one { top: 36px; left: 36px; }
  .dot-two { top: 66px; right: 28px; }
  .dot-three { bottom: 64px; left: 18px; }
  .dot-four { bottom: 36px; right: 42px; }
}