* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #0b0f14;
  color: white;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ЛОГО НА ФОНІ */
.background-logo {
  position: fixed;
  inset: 0;
  background: url("logo.png") center/380px no-repeat;
  opacity: 0.08;
  z-index: -1;
}



/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background: rgba(0,0,0,0.6);
}

.logo-text {
  font-size: 22px;
  font-weight: bold;
  color: #3bc9ff;
}

/* БУРГЕР */
.burger {
  width: 30px;
  cursor: pointer;
}

.burger span {
  display: block;
  height: 3px;
  background: white;
  margin: 6px 0;
}

/* ШТОРКА */
nav {
  position: fixed;
  top: 0;
  right: -260px;
  width: 260px;
  height: 100%;
  background: #111827;
  padding-top: 80px;
  transition: 0.3s;
}

nav a {
  display: block;
  padding: 15px 20px;
  color: white;
  text-decoration: none;
  border-bottom: 1px solid #1f2937;
}

nav a:hover {
  background: #1f2937;
}

/* АКТИВНЕ МЕНЮ */
nav.active {
  right: 0;
}

/* КОНТЕНТ */
main {
  text-align: center;
  margin-top: 120px;
  padding: 20px;
}

main h1 {
  font-size: 32px;
  margin-bottom: 10px;
}

main p {
  opacity: 0.8;
  margin-bottom: 30px;
}

.order-btn {
  display: inline-block;
  padding: 15px 30px;
  background: #3bc9ff;
  color: black;
  font-weight: bold;
  border-radius: 30px;
  text-decoration: none;
}
#binary {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}


.close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: white;
  font-size: 22px;
  cursor: pointer;
}
section {
  padding: 80px 20px;
  text-align: center;
}

section h2 {
  font-size: 28px;
  margin-bottom: 20px;
  color: #3bc9ff;
}

section ul {
  list-style: none;
}

section li {
  margin: 10px 0;
}
/* ===== МОБІЛЬНА АДАПТАЦІЯ ===== */
@media (max-width: 768px) {

  header {
    padding: 12px 15px;
  }

  .logo-text {
    font-size: 18px;
  }

  main {
    margin-top: 90px;
  }

  main h1 {
    font-size: 24px;
  }

  main p {
    font-size: 15px;
  }

  .order-btn {
    padding: 14px 26px;
    font-size: 16px;
  }

  /* ШТОРКА */
  nav {
    width: 100%;
    right: -100%;
  }

  nav.active {
    right: 0;
  }

  nav a {
    font-size: 18px;
    padding: 18px;
  }

  .close-btn {
    font-size: 26px;
  }

  /* СЕКЦІЇ */
  section {
    padding: 60px 15px;
  }

  section h2 {
    font-size: 22px;
  }

  section li {
    font-size: 15px;
  }
}

html {
  scroll-behavior: smooth;
}

/* ===== FIX ДЛЯ CANVAS ===== */
#binary {
  pointer-events: none;
  z-index: -2;
}

/* ===== МОБІЛЬНИЙ ФОН ===== */
@media (max-width: 768px) {
  .background-logo {
    background-size: 260px;
    opacity: 0.06;
  }
}