/* General */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0d1117;
  color: #c9d1d9;
  overflow-x: hidden;
}

.accent { color: #58a6ff; }

header {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(13,17,23,0.8);
  backdrop-filter: blur(10px);
  padding: 10px 30px;
  z-index: 1000;
}

header .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  color: #58a6ff;
  font-weight: bold;
}

header .logo img {
  height: 40px;
  border-radius: 50%;
  box-shadow: 0 0 10px #58a6ff;
}

header nav a {
  margin: 0 10px;
  color: #c9d1d9;
  text-decoration: none;
  transition: color .3s;
}
header nav a:hover { color: #58a6ff; }

.hero {
  text-align: center;
  padding: 120px 20px;
  background: linear-gradient(180deg, #0d1117, #161b22);
}
.hero h1 { font-size: 2.5rem; margin-bottom: 10px; }
.hero p { font-size: 1.2rem; margin-bottom: 20px; }
.hero .buttons { display: flex; justify-content: center; gap: 15px; }

.btn {
  padding: 12px 24px;
  border-radius: 8px;
  background: #58a6ff;
  color: white;
  font-weight: bold;
  text-decoration: none;
  transition: 0.3s;
  box-shadow: 0 0 10px rgba(88,166,255,0.5);
}
.btn:hover { background: #1f6feb; box-shadow: 0 0 20px rgba(88,166,255,0.7); }
.btn.secondary { background: transparent; border: 2px solid #58a6ff; }

.features, .developer, .support {
  padding: 80px 20px;
  text-align: center;
}
.features h2, .developer h2, .support h2 { font-size: 2rem; margin-bottom: 40px; color: #58a6ff; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
  gap: 20px;
}

.card {
  background: #161b22;
  padding: 20px;
  border-radius: 12px;
  transition: 0.3s;
  text-align: center;
}
.card h3 { color: #58a6ff; margin-bottom: 10px; }
.card:hover {
  background: #21262d;
  transform: translateY(-5px);
  box-shadow: 0 0 15px rgba(88,166,255,0.3);
}

.dev-card {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  background: #161b22;
  padding: 20px;
  border-radius: 12px;
  max-width: 500px;
  margin: auto;
  box-shadow: 0 0 15px rgba(88,166,255,0.2);
}
.dev-card img {
  width: 80px; height: 80px;
  border-radius: 50%;
  box-shadow: 0 0 15px #58a6ff;
}

footer {
  text-align: center;
  padding: 20px;
  background: #161b22;
  font-size: 0.9rem;
  color: #8b949e;
}

/* Animations */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 1s ease, transform 1s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }