* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #f5f7fb;
  background:
    radial-gradient(circle at top, rgba(32, 90, 150, 0.35), transparent 34rem),
    radial-gradient(circle at bottom left, rgba(185, 30, 30, 0.18), transparent 32rem),
    #05070a;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(45deg, rgba(255,255,255,.08) 1px, transparent 1px),
    linear-gradient(-45deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 18px 18px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 6vw;
  background: rgba(4, 6, 10, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.16);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 800;
}

.brand img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 0 22px rgba(87, 176, 255, 0.45);
}

nav {
  display: flex;
  gap: 22px;
}

nav a {
  color: #dbe7ff;
  text-decoration: none;
  font-weight: 700;
}

nav a:hover {
  color: #ffffff;
  text-shadow: 0 0 12px #4ea7ff;
}

.hero {
  min-height: 88vh;
  padding: 38px 6vw 60px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: center;
  max-width: 1220px;
  margin: 0 auto;
}

.eyebrow {
  color: #7dbdff;
  font-weight: 900;
  letter-spacing: 4px;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(3.5rem, 8vw, 7.4rem);
  line-height: 0.88;
  text-transform: uppercase;
  letter-spacing: -4px;
  background: linear-gradient(180deg, #fff, #a9b8c9 38%, #505c66 60%, #f6f8ff);
  -webkit-background-clip: text;
  color: transparent;
  filter: drop-shadow(0 6px 0 #111) drop-shadow(0 0 22px rgba(93, 174, 255, 0.35));
}

.intro {
  max-width: 560px;
  color: #bdc7d5;
  font-size: 1.18rem;
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 999px;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 900;
  letter-spacing: 1px;
}

.primary {
  color: white;
  background: linear-gradient(135deg, #b40f18, #ff5a5f 42%, #235dff);
  box-shadow: 0 0 26px rgba(57, 142, 255, 0.42);
}

.secondary {
  color: #dbe7ff;
  border: 1px solid rgba(255,255,255,0.28);
  background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.04));
}

.logo-card {
  position: relative;
  padding: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.14), rgba(255,255,255,0.02) 65%);
  box-shadow:
    inset 0 0 28px rgba(255,255,255,0.16),
    0 0 80px rgba(33, 120, 255, 0.25);
}

.logo-card img {
  width: 100%;
  display: block;
  border-radius: 50%;
}

.shine {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: linear-gradient(115deg, transparent 35%, rgba(255,255,255,0.28), transparent 55%);
  mix-blend-mode: screen;
  animation: sweep 4.5s infinite;
}

@keyframes sweep {
  0%, 35% { transform: translateX(-40%) rotate(8deg); opacity: 0; }
  45% { opacity: 1; }
  70%, 100% { transform: translateX(40%) rotate(8deg); opacity: 0; }
}

.metal-bar {
  height: 12px;
  max-width: 1180px;
  margin: 0 auto 36px;
  border-radius: 999px;
  background: linear-gradient(90deg, #282d34, #f4f7ff, #6d7886, #15191f);
  box-shadow: 0 0 26px rgba(255,255,255,0.32);
}

.metal-bar.bottom {
  margin: 44px auto 0;
}

.panel-section {
  padding: 76px 6vw;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0));
}

.panel-section h2,
.cta h2 {
  text-align: center;
  font-size: clamp(2rem, 4vw, 3.4rem);
  text-transform: uppercase;
  margin-top: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  max-width: 1120px;
  margin: 0 auto;
}

.card {
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.16), rgba(255,255,255,0.04)),
    #0b0f16;
  box-shadow: 0 18px 40px rgba(0,0,0,0.35);
}

.card h3 {
  font-size: 1.5rem;
  text-transform: uppercase;
}

.card p {
  color: #b8c2cf;
  line-height: 1.6;
}

.icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #c71924, #1e6fff);
  box-shadow: 0 0 24px rgba(78, 167, 255, 0.38);
}

.sound-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 34px 6vw;
  background: #05070a;
  border-top: 1px solid rgba(255,255,255,0.16);
  border-bottom: 1px solid rgba(255,255,255,0.16);
}

.sound-strip strong {
  margin: 0 18px;
  color: #f2f6ff;
  letter-spacing: 3px;
  text-shadow: 0 0 14px rgba(255,255,255,0.55);
}

.sound-strip span {
  width: 5px;
  height: 32px;
  border-radius: 999px;
  background: linear-gradient(#fff, #4ea7ff);
}

.sound-strip span:nth-child(even) {
  height: 54px;
}

.cta {
  text-align: center;
  padding: 84px 6vw;
}

.cta p {
  color: #c0cad7;
  font-size: 1.15rem;
}

footer {
  text-align: center;
  padding: 28px 6vw;
  color: #8793a3;
}

@media (max-width: 850px) {
  .hero-grid,
  .cards {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    gap: 12px;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
  }
}