/* Base */
body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', sans-serif;
  background: #0a0f1f;
  color: #eaeaea;
}

/* Hero Section */
.hero {
  height: 100vh;
  background: radial-gradient(circle at top left, #0a0f1f 0%, #1a2a6c 50%, #2e4a9e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  animation: fadeIn 1.5s ease-in-out;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  background: radial-gradient(circle at top left, #00c6ff, #0072ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: #cfd8ff;
}

.btn {
  padding: 0.9rem 1.8rem;
  background: radial-gradient(circle at top left, #0072ff, #00c6ff);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,114,255,0.4);
}

/* Content */
.content {
  max-width: 900px;
  margin: 4rem auto;
  padding: 0 1rem;
  text-align: center;
}

.content h2 {
  margin-bottom: 1rem;
  color: #00c6ff;
}

/* Gallery */
.gallery {
  max-width: 1100px;
  margin: 4rem auto;
  padding: 0 1rem;
  text-align: center;
}

.gallery h2 {
  margin-bottom: 2rem;
  color: #00c6ff;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.gallery-grid img {
  width: 100%;
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
  transition: transform 0.4s, box-shadow 0.4s;
}

.gallery-grid img:hover {
  transform: scale(1.05);
  box-shadow: 0 14px 30px rgba(0,0,0,0.6);
}

/* Download Page */
.sub-hero {
  padding: 3rem;
  text-align: center;
  background: radial-gradient(circle at top left, #0a0f1f 0%, #1a2a6c 50%, #2e4a9e 100%);
  color: #fff;
}

.download-grid {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 4rem auto;
  flex-wrap: wrap;
}

.card {
  background: #1c1f3a;
  padding: 2rem;
  border-radius: 14px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
  text-align: center;
  width: 220px;
  text-decoration: none;
  color: #eaeaea;
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.6);
  background: radial-gradient(circle at top left, #0072ff, #00c6ff);
  color: #fff;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  background: #0a0f1f;
  font-size: 0.9rem;
  color: #aaa;
}

/* Animations */
.fade-in {
  animation: fadeIn 1.5s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}