*,
*::before,
*::after { box-sizing: border-box; }

html {
  background: #03070d;
  color-scheme: dark;
}

body {
  margin: 0;
  min-width: 320px;
  background: #03070d;
  color: #fff;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(3, 7, 13, .96);
  border-bottom: 1px solid rgba(70, 170, 255, .25);
  backdrop-filter: blur(8px);
}

.header-inner {
  width: min(1320px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: block;
  width: min(360px, 62vw);
  line-height: 0;
  overflow: hidden;
  border-radius: 4px;
}

.brand img {
  display: block;
  width: 100%;
  height: auto;
}

.menu-button {
  width: 44px;
  height: 44px;
  padding: 10px;
  display: grid;
  align-content: center;
  gap: 5px;
  background: transparent;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 6px;
  cursor: pointer;
}

.menu-button span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 99px;
}

.hero {
  width: 100%;
  background: #000;
  overflow: hidden;
}

.hero-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 2400px;
  margin: 0 auto;
}

@media (max-width: 767px) {
  .header-inner {
    width: calc(100% - 20px);
    min-height: 64px;
  }

  .brand {
    width: min(250px, 70vw);
  }

  .menu-button {
    width: 40px;
    height: 40px;
  }
}