:root {
  --black: #000000;
  --white: #ffffff;
  --gray: #999999;
  --dark-gray: #111111;
  --font: 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--black);
  color: var(--white);
  display: flex;
  flex-direction: column;
}

.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
}

.nav {
  background-color: var(--dark-gray);
  padding: 20px 0;
  box-shadow: 0 2px 10px rgba(255, 255, 255, 0.05);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.brand {
  font-size: 22px;
  font-weight: bold;
  color: var(--white);
}

nav a {
  color: var(--gray);
  text-decoration: none;
  margin-left: 30px;
  font-size: 15px;
  transition: color 0.3s ease;
}

nav a:hover {
  color: var(--white);
}

.hero {
  padding: 120px 20px 60px;
  text-align: center;
  background-color: var(--black);
}

.hero-title {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 20px;
  color: var(--white);
}

.hero-subtitle {
  font-size: 18px;
  color: var(--gray);
  max-width: 700px;
  margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .grid {
    grid-template-columns: 1fr;
  }
}


.asset-box {
  background-color: var(--dark-gray);
  padding: 30px;
  border-radius: 10px;
  border: 1px solid #1a1a1a;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.asset-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.08);
}

.asset-box h4 {
  font-size: 20px;
  margin-bottom: 10px;
}

.asset-box .note {
  font-size: 12px;
  color: var(--gray);
  font-weight: normal;
}

.asset-box p {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 20px;
}

.download-btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--white);
  color: var(--black);
  text-decoration: none;
  font-weight: bold;
  border-radius: 8px;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.download-btn:hover {
  background-color: #dddddd;
  transform: scale(1.05);
}

.footer {
  background-color: #0a0a0a;
  color: var(--gray);
  padding: 40px 20px;
  text-align: center;
  font-size: 14px;
  border-top: 1px solid #111;
  margin-top: auto;
}

.footer .disclaimer {
  font-size: 12px;
  color: #666;
  margin-top: 10px;
}