:root {
  --bg: #050607;
  --panel: #0b0d10;
  --panel-soft: #11151a;
  --text: #f5f7fb;
  --muted: #a8b0ba;
  --blue: #79c7ff;
  --blue-deep: #1c75b8;
  --line: rgba(121, 199, 255, 0.72);
  --line-soft: rgba(255, 255, 255, 0.16);
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at 50% -10%, rgba(121, 199, 255, 0.13), transparent 30%),
    linear-gradient(180deg, #0a0b0d 0%, var(--bg) 42%, #020303 100%);
  line-height: 1.6;
}

a {
  color: inherit;
}

.brand {
  text-align: center;
  text-transform: uppercase;
}

.brand-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  min-height: 100svh;
  padding: clamp(28px, 6vh, 72px) 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 38%, rgba(121, 199, 255, 0.16), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 22%, rgba(121, 199, 255, 0.05) 100%);
}

.brand-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  box-shadow: 0 0 24px rgba(121, 199, 255, 0.35);
}

.brand-stage {
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-mark {
  display: inline-block;
  width: min(94vw, 1320px);
}

.brand-tacc {
  margin: 0;
  font-size: clamp(5.2rem, 23vw, 20rem);
  font-weight: 950;
  font-style: italic;
  line-height: 0.78;
  letter-spacing: 0;
  color: transparent;
  background: linear-gradient(180deg, #ffffff 0%, #ffffff 56%, #d8efff 70%, var(--blue) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 28px rgba(255, 255, 255, 0.08);
}

.brand-rule {
  height: clamp(7px, 1vw, 13px);
  margin: clamp(18px, 4vh, 36px) auto clamp(18px, 4.5vh, 44px);
  background: linear-gradient(90deg, transparent, var(--blue) 7%, var(--blue) 93%, transparent);
  box-shadow: 0 0 18px rgba(121, 199, 255, 0.28);
}

.brand-product {
  margin: 0;
  color: var(--blue);
  font-size: clamp(2.4rem, 8.2vw, 6.5rem);
  font-weight: 900;
  line-height: 0.95;
}

.brand-subtitle {
  display: inline-block;
  width: min(100%, 620px);
  margin: 18px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-size: clamp(1.45rem, 4.4vw, 3.5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--text);
}

.hero {
  padding: clamp(44px, 8vw, 92px) 0 clamp(54px, 8vw, 96px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
}

.section-kicker {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 880px;
  margin-bottom: 18px;
  font-size: clamp(3.2rem, 9vw, 7.5rem);
  font-weight: 950;
  line-height: 0.9;
  text-transform: uppercase;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

h3 {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 1rem;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 670px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border: 2px solid var(--blue);
  color: var(--bg);
  background: var(--blue);
  font-size: 0.86rem;
  font-weight: 900;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  background: #a8dcff;
  box-shadow: 0 0 28px rgba(121, 199, 255, 0.25);
}

.spec-panel {
  border-top: 4px solid var(--blue);
  border-bottom: 1px solid var(--line-soft);
  padding: 22px 0;
}

.spec-panel p {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.88rem;
  text-transform: uppercase;
}

.spec-panel strong {
  display: block;
  color: var(--text);
  font-size: clamp(1.65rem, 4vw, 3.25rem);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
}

section {
  padding: clamp(54px, 8vw, 92px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.section-header {
  margin-bottom: 34px;
}

.section-header p,
.body-copy p {
  color: var(--muted);
}

.body-copy {
  color: var(--muted);
}

.feature-card {
  min-height: 220px;
  padding: 24px;
  border: 1px solid var(--line-soft);
  border-top: 4px solid var(--blue);
  background: linear-gradient(180deg, var(--panel-soft), var(--panel));
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.feature-number {
  display: block;
  margin-bottom: 34px;
  color: var(--blue);
  font-size: 0.84rem;
  font-weight: 900;
  text-transform: uppercase;
}

.contact-panel {
  padding: clamp(28px, 5vw, 46px) 0;
  border-top: 4px solid var(--blue);
  border-bottom: 1px solid var(--line-soft);
}

.contact-list {
  display: grid;
  gap: 16px;
  margin: 0;
}

.contact-item {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.contact-item dt {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.contact-item dd {
  margin: 4px 0 0;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
}

footer {
  padding: 26px 0 40px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-align: center;
  text-transform: uppercase;
}

@media (max-width: 820px) {
  .brand-rule {
    height: 7px;
  }
}

@media (max-width: 520px) {
  .row.g-5 {
    --bs-gutter-x: 1.5rem;
    --bs-gutter-y: 1.5rem;
  }

  .brand {
    padding-top: 0;
  }

  .brand-subtitle {
    width: 92%;
  }

  .button {
    width: 100%;
  }

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