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

body {
  background: #0b0b0f;
  color: white;
  overflow-x: hidden;
}

.bg {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top, #1a1a2e, #000);
  z-index: -1;
}

/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  padding: 20px;
}

.logo {
  font-size: 24px;
  font-weight: bold;
}

.logo span {
  color: #00f0ff;
}

nav a {
  margin-left: 20px;
  color: white;
  text-decoration: none;
  opacity: 0.7;
}

nav a:hover {
  opacity: 1;
}

/* HERO */
.hero {
  height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero h1 {
  font-size: 72px;
  letter-spacing: 5px;
}

.hero p {
  margin: 15px 0;
  opacity: 0.7;
}

/* Кнопка в HERO */
.hero a button {
  background: #00f0ff;
  color: black;
  font-weight: bold;
  padding: 12px 30px;
  border: none;
  cursor: pointer;
  transition: 0.3s;
}

.hero a button:hover {
  background: #ff00f0;
  color: white;
  transform: scale(1.1);
}

/* SECTIONS */
section {
  padding: 80px 20px;
  text-align: center;
}

.cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.card {
  width: 200px;
  padding: 20px;
  background: #111;
  border: 1px solid #00f0ff33;
}

.card span {
  color: #00f0ff;
}

/* Кнопка в JOIN */
#join a button {
  background: #00f0ff;
  color: black;
  font-weight: bold;
  padding: 12px 30px;
  border: none;
  cursor: pointer;
  transition: 0.3s;
}

#join a button:hover {
  background: #ff00f0;
  color: white;
  transform: scale(1.1);
}