:root {
  --bg: #050708;
  --bg-soft: #0b1114;
  --panel: #0d1517;
  --panel-2: #111a1c;
  --text: #f7f7f7;
  --muted: #a8b0b4;
  --muted-2: #757f84;
  --red: #ff2a2a;
  --red-dark: #c9151b;
  --green: #00a85c;
  --green-soft: rgba(0, 168, 92, 0.22);
  --line: rgba(255, 255, 255, 0.12);
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 68% 18%, rgba(0, 110, 63, 0.16), transparent 35%),
    radial-gradient(circle at 18% 35%, rgba(255, 42, 42, 0.09), transparent 26%),
    linear-gradient(180deg, #050708 0%, #080d10 45%, #06090b 100%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 82px;
  padding: 0 clamp(22px, 4.5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(5, 7, 8, 0.78);
  backdrop-filter: blur(16px);
}

.brand,
.nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-size: clamp(1rem, 1.6vw, 1.35rem);
  font-weight: 850;
  letter-spacing: 0.08em;
}

.brand-mark {
  color: var(--red);
  font-size: 1.65em;
  filter: drop-shadow(0 0 14px rgba(255, 42, 42, 0.45));
}

.nav {
  gap: clamp(14px, 2.4vw, 34px);
  font-size: 1.02rem;
}

.nav a {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: rgba(255, 255, 255, 0.9);
  transition: color 160ms ease, transform 160ms ease;
}

.nav a:hover {
  color: var(--red);
  transform: translateY(-1px);
}

.nav-icon {
  color: var(--red);
  font-weight: 800;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(420px, 1.15fr);
  align-items: center;
  min-height: calc(100vh - 82px);
  padding: clamp(54px, 8vw, 118px) clamp(22px, 4.5vw, 72px);
  gap: clamp(36px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--red);
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(3.2rem, 7vw, 6.5rem);
  line-height: 0.93;
  font-weight: 900;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

.lead {
  max-width: 620px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1.35rem, 2.1vw, 2.15rem);
  line-height: 1.25;
  font-weight: 700;
}

.red-line {
  width: 52px;
  height: 4px;
  margin: 30px 0 0;
  border-radius: 99px;
  background: var(--red);
  box-shadow: 0 0 22px rgba(255, 42, 42, 0.38);
}

.scope {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.05rem, 1.35vw, 1.35rem);
}

.scope strong {
  color: var(--red);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 0 28px;
  border-radius: 8px;
  font-size: 1.03rem;
  font-weight: 800;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

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

.btn-primary {
  background: linear-gradient(180deg, #ff3535, #d71920);
  box-shadow: 0 18px 36px rgba(255, 42, 42, 0.24);
}

.btn-primary:hover {
  box-shadow: 0 20px 44px rgba(255, 42, 42, 0.34);
}

.btn-outline {
  border: 2px solid var(--red);
  background: rgba(5, 7, 8, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 42, 42, 0.08);
  border-color: #ff4a4a;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 430px;
  isolation: isolate;
}

.circuit-lines {
  position: absolute;
  inset: -12% -8%;
  opacity: 0.55;
  z-index: -2;
  background:
    linear-gradient(90deg, transparent 0 11%, var(--green-soft) 11% 11.4%, transparent 11.4% 100%),
    linear-gradient(0deg, transparent 0 34%, var(--green-soft) 34% 34.4%, transparent 34.4% 100%),
    radial-gradient(circle, rgba(0, 168, 92, 0.7) 0 2px, transparent 2.5px) 0 0 / 80px 80px,
    repeating-linear-gradient(90deg, transparent 0 42px, rgba(0, 168, 92, 0.28) 42px 44px, transparent 44px 70px),
    repeating-linear-gradient(0deg, transparent 0 64px, rgba(0, 168, 92, 0.18) 64px 66px, transparent 66px 120px);
  mask-image: radial-gradient(ellipse at center, black 0 58%, transparent 76%);
}

.logo-board {
  position: relative;
  width: min(100%, 820px);
  min-height: 310px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(36px, 5vw, 70px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent 20%),
    radial-gradient(circle at 22% 28%, rgba(0, 168, 92, 0.48), transparent 25%),
    radial-gradient(circle at 72% 60%, rgba(0, 168, 92, 0.24), transparent 28%),
    linear-gradient(180deg, #062015, #03140e);
  box-shadow:
    var(--shadow),
    inset 0 0 0 8px rgba(255, 255, 255, 0.04),
    inset 0 0 48px rgba(0, 0, 0, 0.65),
    0 0 80px rgba(0, 168, 92, 0.18);
  clip-path: polygon(4% 0, 96% 0, 100% 12%, 100% 88%, 96% 100%, 4% 100%, 0 88%, 0 12%);
  overflow: hidden;
}

.logo-board::before,
.logo-board::after {
  content: "";
  position: absolute;
  inset: 18px;
  pointer-events: none;
}

.logo-board::before {
  opacity: 0.75;
  background:
    radial-gradient(circle, rgba(0, 168, 92, 0.7) 0 2px, transparent 2.8px) 0 0 / 68px 58px,
    repeating-linear-gradient(90deg, transparent 0 50px, rgba(0, 168, 92, 0.34) 50px 52px, transparent 52px 84px),
    repeating-linear-gradient(0deg, transparent 0 42px, rgba(0, 168, 92, 0.24) 42px 44px, transparent 44px 88px);
  mask-image: linear-gradient(90deg, transparent 0%, black 10%, black 90%, transparent 100%);
}

.logo-board::after {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 15px;
  clip-path: polygon(5% 0, 95% 0, 100% 14%, 100% 86%, 95% 100%, 5% 100%, 0 86%, 0 14%);
}

.board-shine {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 18%, rgba(255, 255, 255, 0.11) 30%, transparent 43%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 24%);
  pointer-events: none;
}

.main-logo {
  position: relative;
  z-index: 1;
  display: block;
  width: min(96%, 650px);
  height: auto;
  filter:
    invert(1)
    drop-shadow(0 8px 14px rgba(0, 0, 0, 0.9))
    drop-shadow(0 0 18px rgba(255, 255, 255, 0.18));
}

.screw {
  position: absolute;
  z-index: 2;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #727b7d, #141719 45%, #050607 70%);
  border: 2px solid rgba(255, 255, 255, 0.22);
  box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.75);
}

.screw-1 { top: 28px; left: 38px; }
.screw-2 { top: 28px; right: 38px; }
.screw-3 { bottom: 28px; left: 38px; }
.screw-4 { bottom: 28px; right: 38px; }

.contact-section {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(320px, 1.25fr);
  gap: clamp(24px, 6vw, 90px);
  padding: clamp(48px, 7vw, 88px) clamp(22px, 4.5vw, 72px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent),
    rgba(9, 14, 17, 0.72);
}

.section-heading .red-line {
  margin: 0 0 22px;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 3.4vw, 3rem);
  line-height: 1;
}

.contact-card {
  display: grid;
  gap: 26px;
  max-width: 720px;
}

.contact-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 22px;
  align-items: start;
  color: var(--text);
}

.contact-link {
  width: fit-content;
}

.contact-link:hover strong {
  color: var(--red);
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  border-radius: 12px;
  color: var(--red);
  font-size: 1.35rem;
  background: rgba(255, 42, 42, 0.06);
  border: 1px solid rgba(255, 42, 42, 0.18);
}

.contact-item strong {
  display: block;
  font-size: 1.22rem;
  transition: color 160ms ease;
}

.contact-item p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.site-footer {
  padding: 26px 22px;
  border-top: 1px solid var(--line);
  color: var(--muted-2);
  text-align: center;
  font-size: 0.98rem;
  background: rgba(5, 7, 8, 0.86);
}

@media (max-width: 980px) {
  .site-header {
    position: static;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

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

  .hero-visual {
    min-height: 300px;
  }

  .logo-board {
    min-height: 245px;
  }

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

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    gap: 18px;
    flex-direction: column;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.98rem;
  }

  .hero {
    padding-top: 44px;
  }

  .lead {
    font-size: 1.28rem;
  }

  .btn {
    width: 100%;
    padding-inline: 18px;
  }

  .logo-board {
    min-height: 190px;
    padding: 26px;
    border-radius: 16px;
  }

  .screw {
    width: 15px;
    height: 15px;
  }

  .screw-1 { top: 18px; left: 22px; }
  .screw-2 { top: 18px; right: 22px; }
  .screw-3 { bottom: 18px; left: 22px; }
  .screw-4 { bottom: 18px; right: 22px; }

  .contact-item {
    grid-template-columns: 38px 1fr;
    gap: 16px;
  }

  .contact-icon {
    min-width: 38px;
    height: 38px;
    border-radius: 10px;
  }
}