/* CSS LLC — telecom, security and IT infrastructure landing */

:root {
  --bg: #070b10;
  --panel: #0f1722;
  --panel-soft: #142030;
  --text: #edf7ff;
  --muted: #91a8bd;
  --line: rgba(237, 247, 255, 0.12);
  --cyan: #3ee7ff;
  --green: #5cff9d;
  --orange: #ffb14a;
  --danger: #ff5f6d;
  --font: "Archivo", system-ui, sans-serif;
  --radius: 26px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 8%, rgba(62, 231, 255, 0.18), transparent 28%),
    radial-gradient(circle at 88% 4%, rgba(92, 255, 157, 0.14), transparent 30%),
    linear-gradient(180deg, #070b10, #05070a);
  font-family: var(--font);
  line-height: 1.65;
}

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

.header {
  position: sticky;
  top: 16px;
  z-index: 30;
  width: min(1180px, calc(100% - 28px));
  margin: 16px auto 0;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 16px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(15, 23, 34, 0.76);
  backdrop-filter: blur(18px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.shield-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 2px solid var(--cyan);
  border-radius: 16px;
  background: rgba(62, 231, 255, 0.08);
}

.shield-mark i {
  position: absolute;
  display: block;
  background: var(--cyan);
}

.shield-mark i:nth-child(1) {
  width: 20px;
  height: 3px;
  top: 15px;
}

.shield-mark i:nth-child(2) {
  width: 3px;
  height: 20px;
  top: 15px;
}

.shield-mark i:nth-child(3) {
  width: 12px;
  height: 12px;
  right: 8px;
  bottom: 8px;
  border-radius: 50%;
  background: var(--green);
}

.logo b {
  display: block;
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.logo small {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.nav {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 800;
}

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

.language,
.menu {
  min-width: 52px;
  height: 44px;
  color: var(--text);
  background: #09111a;
  border: 1px solid var(--line);
  border-radius: 999px;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.menu {
  display: none;
  width: 50px;
}

.menu span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
}

main,
footer {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
}

.hero {
  min-height: 84vh;
  display: grid;
  grid-template-columns: 1fr 420px;
  grid-template-areas:
    "left card"
    "right card";
  gap: 22px 36px;
  align-items: end;
  padding: 88px 0 76px;
}

.hero-left {
  grid-area: left;
}

.hero-right {
  grid-area: right;
  max-width: 720px;
}

.signal-card {
  grid-area: card;
}

.tag {
  margin: 0 0 16px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

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

h1 {
  margin-bottom: 0;
  font-size: clamp(3rem, 7.4vw, 6.8rem);
  line-height: 0.88;
  letter-spacing: -0.08em;
  text-transform: uppercase;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4.4vw, 4.3rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.3rem;
  line-height: 1.12;
}

.hero-right p,
.infrastructure p,
.areas p,
.steps p,
.contact p {
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 900;
  border: 0;
  cursor: pointer;
}

.button-fill {
  color: #031011;
  background: var(--cyan);
  box-shadow: 0 0 30px rgba(62, 231, 255, 0.22);
}

.button-border {
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--cyan);
}

.signal-card {
  min-height: 520px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: linear-gradient(180deg, rgba(237, 247, 255, 0.08), rgba(237, 247, 255, 0.03));
}

.signal-label {
  display: block;
  margin-bottom: 40px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.radar {
  position: relative;
  width: 260px;
  height: 260px;
  margin: 0 auto 36px;
  border: 1px solid rgba(62, 231, 255, 0.32);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(62, 231, 255, 0.2), transparent 62%);
}

.radar::before,
.radar::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(62, 231, 255, 0.18);
  border-radius: 50%;
}

.radar::before {
  inset: 22%;
}

.radar::after {
  inset: 40%;
}

.radar i {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 24px rgba(92, 255, 157, 0.8);
}

.radar i:nth-child(1) {
  top: 20%;
  left: 48%;
}

.radar i:nth-child(2) {
  right: 20%;
  bottom: 24%;
  background: var(--cyan);
}

.radar i:nth-child(3) {
  left: 22%;
  bottom: 30%;
  background: var(--orange);
}

.signal-card ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.signal-card li {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  font-weight: 800;
  text-transform: uppercase;
}

.infrastructure {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  padding: 88px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.areas {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 88px 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.areas article {
  min-height: 300px;
  padding: 22px;
  background: var(--panel);
}

.areas article:nth-child(1),
.areas article:nth-child(4),
.areas article:nth-child(7) {
  background: var(--panel-soft);
}

.areas span {
  display: inline-flex;
  margin-bottom: 78px;
  color: var(--cyan);
  font-weight: 900;
}

.approach {
  padding: 88px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-title {
  max-width: 760px;
  margin-bottom: 28px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.steps article {
  min-height: 280px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.steps b {
  display: block;
  margin-bottom: 78px;
  color: var(--green);
  font-size: 1.24rem;
}

.contact {
  display: grid;
  grid-template-columns: 0.9fr 0.85fr 1fr;
  gap: 18px;
  padding: 88px 0;
}

address,
form {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  font-style: normal;
}

address p {
  margin: 0 0 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

address span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.13em;
}

input,
textarea {
  width: 100%;
  margin-bottom: 14px;
  padding: 14px;
  color: var(--text);
  background: #070b10;
  border: 1px solid var(--line);
  border-radius: 16px;
  font: inherit;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(62, 231, 255, 0.18);
  border-color: var(--cyan);
}

form .button {
  width: 100%;
}

footer {
  padding: 28px 0 36px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  .header {
    grid-template-columns: auto auto auto;
    justify-content: space-between;
  }

  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: var(--panel);
  }

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

  .menu {
    display: block;
  }

  .hero {
    grid-template-columns: 1fr;
    grid-template-areas:
      "left"
      "right"
      "card";
  }

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

  .infrastructure,
  .contact {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 620px) {
  h1 {
    font-size: 2.7rem;
  }

  .hero {
    min-height: auto;
    padding-top: 62px;
  }

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

  .radar {
    width: 220px;
    height: 220px;
  }
}