/* RESET & CƠ BẢN */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Rubik', sans-serif;
  background: #111;
  color: #fff;
  line-height: 1.5;
}

/* HEADER + LOGO */
.header {
  background-color: #000;
  text-align: center;
  padding: 1rem;
  border-bottom: 1px solid #333;
}

.logo img {
  width: 70px;
  height: auto;
  max-width: 100%;
  object-fit: contain;
  transition: width 0.3s ease;
}

/* MENU NGANG */
.nav {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.5rem;
  background-color: #1a1a1a;
  padding: 0.5rem;
  justify-content: center;
  scrollbar-width: none; /* Firefox */
}

.nav::-webkit-scrollbar {
  display: none;
}

.nav a {
  flex: 0 0 auto;
  white-space: nowrap;
  padding: 0.5rem 1rem;
  background-color: #333;
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.9rem;
  transition: background 0.3s;
}

.nav a:hover {
  background-color: #00ffcc;
  color: #000;
}

/* Trang Chào Mừng */
.welcome-section {
  padding: 20px;
  max-width: 800px;
  margin: 20px auto;
  text-align: center;
}

.welcome-section h1 {
  font-size: 24px;
  color: #00ffff;
  margin-bottom: 20px;
}

.welcome-section h2, .welcome-section h3 {
  margin-top: 20px;
  font-size: 20px;
  color: #ffcc00;
}

.welcome-section p {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 15px;
}

.welcome-section ul {
  list-style: none;
  padding-left: 0;
}

.welcome-section li::before {
  content: "✅ ";
  color: #ffcc00;
}

/* NÚT TẢI GAME */
.download-buttons {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 25px;
}

.download-buttons a {
  width: 120px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.download-buttons a img {
  width: 100%;
  height: auto;
  transition: transform 0.2s ease;
}

.download-buttons a:hover img {
  transform: scale(1.05);
}

/* Footer */
.footer {
  text-align: center;
  padding: 15px;
  background-color: #1e1e1e;
  color: #aaa;
  font-size: 14px;
}