:root {
  --bg: #05080d;
  --bg-soft: #090e16;
  --surface: #0d141e;
  --surface-light: #111b28;
  --border: rgba(255, 255, 255, 0.09);

  --text: #f4f7fb;
  --text-soft: #a3adbb;
  --text-muted: #727d8d;

  --cyan: #29d9ff;
  --blue: #4d7cff;
  --purple: #9a63ff;
  --green: #3ee6a5;

  --max-width: 1180px;
  --radius: 24px;
}

/* Reset */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% -20%, rgba(36, 116, 255, 0.12), transparent 35%),
    var(--bg);
  color: var(--text);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.section {
  padding: 110px 0;
}


/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 8, 13, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav-container {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background:
    linear-gradient(135deg, var(--cyan), var(--blue) 55%, var(--purple));
  color: white;
  font-size: 19px;
  font-weight: 800;
  box-shadow: 0 0 25px rgba(41, 217, 255, 0.18);
}

.brand-name {
  font-size: 16px;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.desktop-nav a,
.footer-links a {
  color: var(--text-soft);
  transition: color 160ms ease;
}

.desktop-nav a:hover,
.footer-links a:hover {
  color: white;
}

.nav-button {
  padding: 10px 17px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  font-size: 14px;
  font-weight: 650;
  transition:
    background 160ms ease,
    border-color 160ms ease;
}

.nav-button:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}


/* Hero */

.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 240px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 960px;
  text-align: center;
  padding: 100px 0 130px;
}

.eyebrow {
  display: inline-flex;
  padding: 8px 14px;
  margin-bottom: 26px;
  border: 1px solid rgba(41, 217, 255, 0.17);
  border-radius: 999px;
  background: rgba(41, 217, 255, 0.05);
  color: #aeeeff;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.04em;
}

.hero h1 {
  max-width: 950px;
  margin: 0 auto;
  font-size: clamp(52px, 7.3vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.055em;
  font-weight: 780;
}

.hero h1 span {
  display: block;
  margin-top: 10px;
  background: linear-gradient(
    90deg,
    #79edff 0%,
    #5c8dff 47%,
    #b272ff 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-copy {
  max-width: 700px;
  margin: 32px auto 0;
  color: var(--text-soft);
  font-size: 19px;
  line-height: 1.75;
}

.hero-actions {
  margin-top: 38px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 13px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 13px;
  font-weight: 700;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, #12cfe9, #4f72ff);
  color: white;
  box-shadow: 0 12px 35px rgba(34, 157, 255, 0.18);
}

.button-secondary {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.035);
}

.button-secondary:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(4px);
  pointer-events: none;
}

.hero-glow-one {
  width: 700px;
  height: 700px;
  left: 50%;
  top: -350px;
  transform: translateX(-50%);
  background: radial-gradient(
    circle,
    rgba(40, 116, 255, 0.18),
    transparent 65%
  );
}

.hero-glow-two {
  width: 900px;
  height: 420px;
  left: 50%;
  bottom: -300px;
  transform: translateX(-50%);
  background: radial-gradient(
    ellipse,
    rgba(132, 70, 255, 0.1),
    transparent 65%
  );
}


/* Section headings */

.section-heading {
  max-width: 700px;
  margin-bottom: 52px;
}

.section-label {
  display: inline-block;
  margin-bottom: 15px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.section-heading h2,
.about h2,
.contact h2 {
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.section-heading p {
  max-width: 630px;
  margin-top: 20px;
  color: var(--text-soft);
  font-size: 17px;
}


/* Products */

.products {
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.01),
      transparent 30%
    );
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.product-card {
  position: relative;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.055),
      rgba(255, 255, 255, 0.018)
    );
  box-shadow:
    inset 0 1px rgba(255, 255, 255, 0.04),
    0 30px 80px rgba(0, 0, 0, 0.18);
  transition:
    transform 180ms ease,
    border-color 180ms ease;
}

.product-card::before {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  top: -130px;
  right: -110px;
  border-radius: 50%;
  background: rgba(77, 124, 255, 0.12);
  filter: blur(30px);
}

.product-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.15);
}

.featured-card {
  border-color: rgba(41, 217, 255, 0.18);
}

.product-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 34px;
}

.product-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: white;
  font-size: 23px;
  font-weight: 800;
}

.quotetop-icon {
  background: linear-gradient(135deg, #0d9e9e, #24d3a7);
}

.callioner-icon {
  background: linear-gradient(135deg, #387cff, #765cff);
}

.axiom-icon {
  background: linear-gradient(135deg, #874dff, #d062ff);
}

.product-status {
  padding: 6px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.product-status.available {
  color: #6ceac1;
  border-color: rgba(62, 230, 165, 0.18);
  background: rgba(62, 230, 165, 0.05);
}

.product-status.development {
  color: #85b6ff;
  border-color: rgba(77, 124, 255, 0.2);
  background: rgba(77, 124, 255, 0.06);
}

.product-status.research {
  color: #c798ff;
  border-color: rgba(154, 99, 255, 0.2);
  background: rgba(154, 99, 255, 0.06);
}

.product-card h3 {
  position: relative;
  z-index: 1;
  font-size: 30px;
  letter-spacing: -0.03em;
}

.product-tagline {
  position: relative;
  z-index: 1;
  margin-top: 3px;
  color: #d5dce6;
  font-size: 14px;
  font-weight: 650;
}

.product-description {
  position: relative;
  z-index: 1;
  margin-top: 22px;
  color: var(--text-soft);
  line-height: 1.75;
}

.product-link {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-top: 30px;
  color: var(--cyan);
  font-weight: 700;
}


/* About */

.about {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 100px;
  align-items: start;
}

.about-copy {
  padding-top: 35px;
}

.about-copy p {
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.8;
}

.about-copy p + p {
  margin-top: 25px;
}


/* Principles */

.principles {
  padding-top: 10px;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.principle {
  padding: 44px 34px;
}

.principle + .principle {
  border-left: 1px solid var(--border);
}

.principle span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.principle h3 {
  margin-top: 20px;
  font-size: 22px;
}

.principle p {
  margin-top: 10px;
  color: var(--text-soft);
}


/* Contact */

.contact {
  padding-top: 80px;
}

.contact-card {
  min-height: 300px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 50px;
  padding: 55px;
  border: 1px solid rgba(41, 217, 255, 0.13);
  border-radius: 30px;
  background:
    radial-gradient(
      circle at 90% 10%,
      rgba(88, 80, 255, 0.14),
      transparent 35%
    ),
    linear-gradient(
      135deg,
      rgba(41, 217, 255, 0.045),
      rgba(255, 255, 255, 0.025)
    );
}

.contact-card p {
  max-width: 600px;
  margin-top: 17px;
  color: var(--text-soft);
  font-size: 17px;
}


/* Footer */

.site-footer {
  margin-top: 30px;
  padding: 70px 0 25px;
  border-top: 1px solid var(--border);
  background: #030509;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 80px;
}

.footer-statement {
  margin-top: 18px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 11px;
  min-width: 110px;
  font-size: 14px;
}

.footer-bottom {
  margin-top: 55px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  font-size: 12px;
}


/* Responsive */

@media (max-width: 900px) {
  .desktop-nav {
    display: none;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .product-card {
    min-height: 350px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .about-copy {
    padding-top: 10px;
  }

  .principles-grid {
    grid-template-columns: 1fr;
  }

  .principle + .principle {
    border-left: 0;
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 650px) {
  .container {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .section {
    padding: 80px 0;
  }

  .site-header .nav-button {
    display: none;
  }

  .nav-container {
    min-height: 66px;
  }

  .hero {
    min-height: 650px;
  }

  .hero-content {
    padding: 85px 0 110px;
  }

  .hero h1 {
    font-size: clamp(44px, 14vw, 66px);
  }

  .hero-copy {
    font-size: 17px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .product-card {
    padding: 23px;
  }

  .contact-card {
    min-height: 0;
    padding: 35px 25px;
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 45px 25px;
  }

  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }
}