* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: white;
  background:
    linear-gradient(rgba(5, 8, 24, 0.75), rgba(5, 8, 24, 0.95)),
    url("https://images.unsplash.com/photo-1462331940025-496dfbfc7564?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 8%;
  background: rgba(6, 10, 30, 0.65);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.logo {
  font-size: 24px;
  font-weight: bold;
  letter-spacing: 1px;
}

nav a {
  color: #dce6ff;
  text-decoration: none;
  margin-left: 24px;
  font-weight: 600;
}

nav a:hover {
  color: #7df9ff;
}

.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: 0 8%;
}

.hero-content {
  max-width: 720px;
}

.eyebrow {
  color: #7df9ff;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 14px;
  font-weight: bold;
}

h1 {
  font-size: clamp(44px, 7vw, 82px);
  line-height: 1;
  margin: 16px 0;
}

.description {
  font-size: 20px;
  line-height: 1.6;
  color: #d7def5;
  max-width: 620px;
}

.buttons {
  margin-top: 32px;
}

button {
  border: none;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: bold;
  cursor: pointer;
  margin-right: 12px;
  font-size: 16px;
}

.primary-btn {
  background: #7df9ff;
  color: #06101f;
}

.secondary-btn {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

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

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  padding: 0 8% 60px;
}

.card {
  background: rgba(12, 18, 48, 0.72);
  border: 1px solid rgba(125, 249, 255, 0.25);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
}

.card h2 {
  color: #7df9ff;
}

.card p {
  color: #d7def5;
  line-height: 1.5;
}

@media (max-width: 800px) {
  .navbar {
    flex-direction: column;
    gap: 16px;
  }

  nav a {
    margin: 0 8px;
  }

  .cards {
    grid-template-columns: 1fr;
  }
}

.game-container {
  padding: 60px 8%;
}

.command-header {
  margin-bottom: 36px;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 32px;
}

.building-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.game-card {
  background: rgba(12, 18, 48, 0.78);
  border: 1px solid rgba(125, 249, 255, 0.25);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
}

.game-card h2 {
  color: #7df9ff;
}

.game-card p {
  color: #d7def5;
  line-height: 1.5;
}

.game-card button {
  margin-top: 14px;
}

@media (max-width: 800px) {
  .resource-grid,
  .building-grid {
    grid-template-columns: 1fr;
  }
}

.control-panel {
  margin-top: 28px;
}

.danger-btn {
  background: #ff5c5c;
  color: white;
}

.mission-log {
  margin-top: 32px;
  background: rgba(12, 18, 48, 0.78);
  border: 1px solid rgba(125, 249, 255, 0.25);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.35);
}

.mission-log h2 {
  color: #7df9ff;
}

.mission-log ul {
  padding-left: 20px;
  color: #d7def5;
}

.mission-log li {
  margin-bottom: 8px;
}