@charset "UTF-8";
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  --iht-navy: #0b1f33;
  --iht-navy-2: #122b45;
  --iht-graphite: #1f2937;
  --iht-gray: #667085;
  --iht-gray-soft: #f5f7fa;
  --iht-line: #e6edf5;
  --iht-blue: #1f6feb;
  --iht-blue-soft: #8fd8ff;
  --iht-white: #ffffff;
  --iht-radius: 28px;
  --iht-shadow: 0 24px 80px rgba(11, 31, 51, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--iht-graphite);
  background: var(--iht-white);
  font-family: "Inter", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.iht-container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.iht-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(230, 237, 245, 0.9);
}

.iht-header__inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.iht-logo img {
  width: 220px;
  height: auto;
}

.iht-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: var(--iht-navy);
  font-size: 15px;
  font-weight: 600;
}

.iht-nav a {
  position: relative;
  opacity: 0.86;
}

.iht-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--iht-blue);
  transition: width 0.25s ease;
}

.iht-nav a:hover::after,
.iht-nav a.is-active::after {
  width: 100%;
}

.iht-nav a.is-active {
  opacity: 1;
}

.iht-header__cta,
.iht-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.iht-header__cta,
.iht-btn--primary {
  background: var(--iht-navy);
  color: var(--iht-white);
  box-shadow: 0 18px 40px rgba(11, 31, 51, 0.16);
  border: 1px solid var(--iht-navy);
}

.iht-btn--secondary {
  color: var(--iht-navy);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(11, 31, 51, 0.12);
}

.iht-header__cta:hover,
.iht-btn:hover {
  transform: translateY(-2px);
}

.iht-hero {
  min-height: 820px;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 25%, rgba(31, 111, 235, 0.18), transparent 28%),
    radial-gradient(circle at 18% 70%, rgba(143, 216, 255, 0.24), transparent 26%),
    linear-gradient(135deg, #f8fafc 0%, #eef3f8 52%, #ffffff 100%);
}

.iht-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 31, 51, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 31, 51, 0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at center, #000 0%, transparent 72%);
}

.iht-hero__orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(4px);
  opacity: 0.55;
}

.iht-hero__orb--one {
  width: 360px;
  height: 360px;
  right: 8%;
  top: 18%;
  background: linear-gradient(135deg, rgba(31, 111, 235, 0.12), rgba(143, 216, 255, 0.30));
  border: 1px solid rgba(31, 111, 235, 0.14);
}

.iht-hero__orb--two {
  width: 220px;
  height: 220px;
  left: 9%;
  bottom: 14%;
  background: rgba(11, 31, 51, 0.08);
  border: 1px solid rgba(11, 31, 51, 0.10);
}

.iht-hero__content {
  position: relative;
  text-align: center;
  padding: 150px 0;
}

.iht-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--iht-blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.iht-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: currentColor;
}

.iht-eyebrow--light {
  color: var(--iht-blue-soft);
}

.iht-hero h1,
.iht-section h2,
.iht-contact h2 {
  margin: 0;
  color: var(--iht-navy);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.iht-hero h1 {
  max-width: 1040px;
  margin: 0 auto;
  font-size: clamp(46px, 6vw, 88px);
}

.iht-hero p {
  max-width: 760px;
  margin: 28px auto 0;
  color: var(--iht-gray);
  font-size: clamp(18px, 2vw, 22px);
}

.iht-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.iht-section {
  padding: 130px 0;
}

.iht-about__grid,
.iht-ai__grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 88px;
  align-items: center;
}

.iht-section__content h2,
.iht-section__head h2,
.iht-ai h2,
.iht-device h2,
.iht-contact h2 {
  font-size: clamp(38px, 4.8vw, 66px);
}

.iht-section__content p,
.iht-section__head p,
.iht-ai p,
.iht-device p,
.iht-contact p,
.iht-footer p {
  color: var(--iht-gray);
  font-size: 17px;
}

.iht-lead {
  margin-top: 26px;
  color: var(--iht-navy) !important;
  font-size: 21px !important;
  line-height: 1.55;
}

.iht-visual-card {
  min-height: 560px;
  position: relative;
  border-radius: var(--iht-radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 28%, rgba(31, 111, 235, 0.22), transparent 28%),
    linear-gradient(145deg, #f6f8fb, #e9eef5);
  border: 1px solid var(--iht-line);
  box-shadow: var(--iht-shadow);
}

.iht-visual-card::before {
  content: "";
  position: absolute;
  inset: 38px;
  background-image:
    linear-gradient(rgba(11, 31, 51, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 31, 51, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  border-radius: 22px;
}

.iht-visual-card__layer {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 62%;
  height: 34%;
  border-radius: 24px;
  border: 1px solid rgba(31, 111, 235, 0.28);
  background: rgba(255, 255, 255, 0.52);
  box-shadow: 0 24px 70px rgba(11, 31, 51, 0.10);
  transform: translate(-50%, -50%) rotateX(58deg) rotateZ(-38deg);
}

.iht-visual-card__layer--two {
  transform: translate(-44%, -38%) rotateX(58deg) rotateZ(-38deg);
  opacity: 0.78;
}

.iht-visual-card__layer--three {
  transform: translate(-56%, -62%) rotateX(58deg) rotateZ(-38deg);
  opacity: 0.48;
}

.iht-node {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--iht-blue);
  box-shadow: 0 0 0 10px rgba(31, 111, 235, 0.10);
}

.iht-node--a { left: 24%; top: 30%; }
.iht-node--b { right: 22%; top: 34%; }
.iht-node--c { left: 32%; bottom: 24%; }
.iht-node--d { right: 28%; bottom: 22%; }

.iht-solutions {
  background: var(--iht-gray-soft);
}

.iht-section__head {
  max-width: 860px;
  margin-bottom: 54px;
}

.iht-section__head p {
  max-width: 720px;
  margin-top: 20px;
}

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

.iht-solution-card {
  min-height: 300px;
  padding: 30px;
  border-radius: 24px;
  background: var(--iht-white);
  border: 1px solid var(--iht-line);
  box-shadow: 0 18px 55px rgba(11, 31, 51, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.iht-solution-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 70px rgba(11, 31, 51, 0.12);
}

.iht-solution-card__index {
  display: block;
  margin-bottom: 24px;
  color: var(--iht-blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.iht-solution-card h3 {
  margin: 0 0 16px;
  color: var(--iht-navy);
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.iht-solution-card p {
  margin: 0;
  color: var(--iht-gray);
  font-size: 15px;
}

.iht-ai {
  color: var(--iht-white);
  background:
    radial-gradient(circle at 85% 20%, rgba(31, 111, 235, 0.35), transparent 28%),
    linear-gradient(135deg, #081827 0%, #0b1f33 48%, #122b45 100%);
}

.iht-ai h2,
.iht-ai h3 {
  color: var(--iht-white);
}

.iht-ai p {
  color: rgba(255, 255, 255, 0.70);
}

.iht-ai__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.iht-ai__cards article {
  padding: 28px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.075);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
}

.iht-ai__cards h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.iht-ai__cards p {
  margin: 0;
  font-size: 15px;
}

.iht-device__inner {
  position: relative;
  padding: 74px;
  border-radius: 34px;
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 18%, rgba(31, 111, 235, 0.18), transparent 30%),
    linear-gradient(135deg, #ffffff 0%, #f2f6fb 100%);
  border: 1px solid var(--iht-line);
  box-shadow: var(--iht-shadow);
}

.iht-device__inner::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 1px solid rgba(31, 111, 235, 0.14);
  background: rgba(31, 111, 235, 0.04);
}

.iht-device p {
  max-width: 770px;
  margin-top: 22px;
}

.iht-contact {
  padding-top: 30px;
}

.iht-contact__box {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: center;
  padding: 70px;
  border-radius: 38px;
  background: var(--iht-navy);
  color: var(--iht-white);
  box-shadow: var(--iht-shadow);
}

.iht-contact h2 {
  color: var(--iht-white);
}

.iht-contact p {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.72);
}

.iht-form {
  display: grid;
  gap: 14px;
}

.iht-form input {
  width: 100%;
  height: 56px;
  padding: 0 18px;
  color: var(--iht-white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  outline: none;
}

.iht-form input::placeholder {
  color: rgba(255, 255, 255, 0.56);
}

.iht-form .iht-btn {
  width: 100%;
  background: var(--iht-white);
  color: var(--iht-navy);
  border-color: var(--iht-white);
  cursor: pointer;
}

.iht-footer {
  padding-top: 78px;
  color: rgba(255, 255, 255, 0.72);
  background: #081827;
}

.iht-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.7fr;
  gap: 60px;
  padding-bottom: 56px;
}

.iht-footer__logo {
  width: 260px;
  height: auto;
  margin-bottom: 24px;
}

.iht-footer h3 {
  margin: 0 0 18px;
  color: var(--iht-white);
  font-size: 18px;
}

.iht-footer p,
.iht-footer a {
  display: block;
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.72);
}

.iht-footer a:hover {
  color: var(--iht-white);
}

.iht-footer__bottom {
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  text-align: center;
}

@media (max-width: 1100px) {
  .iht-solutions__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .iht-about__grid,
  .iht-ai__grid,
  .iht-contact__box {
    grid-template-columns: 1fr;
  }

  .iht-contact__box,
  .iht-device__inner {
    padding: 48px;
  }
}

@media (max-width: 820px) {
  .iht-container {
    width: min(100% - 32px, 1180px);
  }

  .iht-header__inner {
    min-height: 82px;
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .iht-logo img {
    width: 185px;
  }

  .iht-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .iht-header__cta {
    display: none;
  }

  .iht-hero {
    min-height: 720px;
  }

  .iht-section {
    padding: 84px 0;
  }

  .iht-visual-card {
    min-height: 420px;
  }

  .iht-solutions__grid,
  .iht-ai__cards,
  .iht-footer__grid {
    grid-template-columns: 1fr;
  }

  .iht-contact__box,
  .iht-device__inner {
    padding: 32px;
    border-radius: 26px;
  }
}

@media (max-width: 520px) {
  .iht-hero h1 {
    font-size: 40px;
  }

  .iht-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .iht-btn {
    width: 100%;
  }
}