:root {
  --bg: #05070f;
  --bg-soft: #0b1020;
  --card: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.14);
  --text: #f4f7ff;
  --muted: #b5bfd6;
  --primary: #61a8ff;
  --primary-2: #8dd7ff;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 10%, #111c35 0, transparent 35%),
    radial-gradient(circle at 90% 15%, #182f54 0, transparent 42%), var(--bg);
  line-height: 1.6;
}

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

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(5, 7, 15, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.05em;
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.site-nav a {
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--text);
}

.lang-switch {
  display: inline-flex;
  gap: 0.3rem;
  margin-left: 0.4rem;
}

.lang-btn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.lang-btn.active {
  background: rgba(141, 215, 255, 0.2);
  color: var(--text);
  border-color: rgba(141, 215, 255, 0.55);
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
}

.nav-cta {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(141, 215, 255, 0.45);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 72px);
  display: grid;
  place-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("./images/Earth from space at night (Unsplash).jpg");
  background-size: cover;
  background-position: center;
  filter: saturate(0.95) contrast(1.05);
  transform: scale(1.02);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.22), rgba(5, 7, 15, 0.7)),
    repeating-linear-gradient(
      120deg,
      rgba(255, 255, 255, 0.03) 0,
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px,
      transparent 40px
    );
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-block: 4rem 6rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--primary-2);
  font-size: 0.77rem;
  font-weight: 700;
  margin: 0 0 0.8rem;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 5.5vw, 4.2rem);
  margin-bottom: 1rem;
  max-width: 900px;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  margin-bottom: 1rem;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.hero p {
  max-width: 760px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(130deg, var(--primary), #72c6ff);
  color: #00122e;
  box-shadow: 0 0 0 0 rgba(97, 168, 255, 0.5);
}

.btn-primary:hover {
  box-shadow: 0 10px 30px -12px rgba(97, 168, 255, 0.8);
}

.btn-outline {
  border-color: var(--line);
  color: var(--text);
}

.section {
  padding: 5rem 0;
}

.metrics {
  border-block: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(255, 255, 255, 0.02);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding: 1.2rem 0;
}

.metrics-grid article,
.card,
.apps-grid article,
.about-panel,
.contact-form {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
}

.metrics-grid article {
  padding: 1.2rem;
}

.metrics-grid h3 {
  margin-bottom: 0.45rem;
}

.cards {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.services {
  background-image: linear-gradient(rgba(5, 7, 15, 0.58), rgba(5, 7, 15, 0.66)),
    url("./images/4010195.jpg");
  background-size: cover;
  background-position: center;
}

.card {
  padding: 1.3rem;
}

.process-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.8rem;
}

.process {
  background-image: linear-gradient(rgba(5, 7, 15, 0.56), rgba(5, 7, 15, 0.64)),
    url("./images/4213493.jpg");
  background-size: cover;
  background-position: center;
}

.process ol {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.95rem;
}

.process li {
  color: var(--muted);
}

.apps-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.applications {
  background-image: linear-gradient(rgba(5, 7, 15, 0.52), rgba(5, 7, 15, 0.62)),
    url("./images/4213493.jpg");
  background-size: cover;
  background-position: center;
}

.apps-grid article {
  padding: 1.2rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.2rem;
}

.about {
  background-image: linear-gradient(rgba(5, 7, 15, 0.55), rgba(5, 7, 15, 0.66)),
    url("./images/4010195.jpg");
  background-size: cover;
  background-position: center;
}

.about ul {
  color: var(--muted);
  padding-left: 1rem;
}

.about-panel {
  padding: 1.5rem;
}

.full {
  width: 100%;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.contact {
  background-image: linear-gradient(rgba(5, 7, 15, 0.54), rgba(5, 7, 15, 0.62)),
    url("./images/steel-metal-fire-darkness-campfire-heat-700619-pxhere.com.jpg");
  background-size: cover;
  background-position: center;
}

.contact-form {
  display: grid;
  gap: 0.8rem;
  padding: 1.2rem;
}

.contact-form label {
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.95rem;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  padding: 0.7rem 0.85rem;
  font: inherit;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(97, 168, 255, 0.5);
  border-color: rgba(97, 168, 255, 0.9);
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.footer-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

@media (max-width: 980px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid,
  .about-grid,
  .contact-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .menu-btn {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 73px;
    left: 0;
    right: 0;
    background: rgba(6, 10, 22, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    gap: 0.9rem;
  }

  .lang-switch {
    margin-left: 0;
  }

  .site-nav.open {
    display: flex;
  }

  .metrics-grid,
  .cards,
  .apps-grid {
    grid-template-columns: 1fr;
  }
}