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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: #e0e0e0;
  background: #1a1a1a;
  line-height: 1.6;
  position: relative;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(1.5px 1.5px at 5% 12%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(1px 1px at 12% 45%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 18% 78%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 25% 25%, rgba(255,255,255,0.3) 50%, transparent 50%),
    radial-gradient(2px 2px at 30% 60%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 38% 90%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 45% 35%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(1px 1px at 52% 70%, rgba(255,255,255,0.3) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 60% 15%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 67% 50%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(2px 2px at 72% 82%, rgba(255,255,255,0.6) 50%, transparent 50%),
    radial-gradient(1px 1px at 78% 20%, rgba(255,255,255,0.3) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 85% 55%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 92% 38%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 95% 75%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 3% 55%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 22% 8%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 42% 52%, rgba(255,255,255,0.3) 50%, transparent 50%),
    radial-gradient(1px 1px at 58% 88%, rgba(255,255,255,0.4) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 75% 42%, rgba(255,255,255,0.5) 50%, transparent 50%),
    radial-gradient(1px 1px at 88% 72%, rgba(255,255,255,0.3) 50%, transparent 50%),
    radial-gradient(ellipse 1200px 800px at 10% 65%, rgba(20,40,80,0.05), transparent 70%),
    radial-gradient(ellipse 1000px 600px at 85% 20%, rgba(60,30,90,0.03), transparent 70%),
    radial-gradient(ellipse 900px 700px at 50% 85%, rgba(15,50,65,0.03), transparent 70%),
    radial-gradient(ellipse 800px 500px at 70% 60%, rgba(25,35,70,0.025), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

a { color: #4a8eff; text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.8; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 60px 20px;
  position: relative;
  z-index: 1;
}

h1 {
  font-size: 2rem;
  margin-bottom: 24px;
  color: #fff;
  border-bottom: 2px solid #4a8eff;
  display: inline-block;
  padding-bottom: 8px;
}

h2 {
  font-size: 1.5rem;
  margin-top: 40px;
  margin-bottom: 20px;
  color: #e0e0e0;
}

p { margin-bottom: 16px; color: #aaa; }

ul { margin-bottom: 16px; padding-left: 20px; color: #aaa; }

.app-name-label {
  font-size: 0.9em;
  font-weight: bold;
  color: #4a8eff;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
  display: block;
}

.app-card {
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.app-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
  border-color: #3a3a3a;
}

.app-card:hover img {
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.5);
}

.app-card img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  flex-shrink: 0;
  background: #333; /* 아이콘이 없을 때의 기본 배경색 */
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

.app-info {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.app-info h3 {
  font-size: 1rem;
  color: #e0e0e0;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-info p {
  font-size: 0.8rem;
  color: #777;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-links {
  display: flex;
  gap: 8px;
  font-size: 0.75rem;
}

.app-links a {
  color: #4a8eff;
  text-decoration: none;
  opacity: 0.7;
}

.app-links a:hover {
  opacity: 1;
  text-decoration: underline;
}

.app-links span {
  color: #333;
}

.play-store-link {
  flex-shrink: 0;
  color: #e0e0e0;
  opacity: 0.4;
  transition: all 0.2s;
  padding: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  display: flex;
  align-items: center;
  justify-content: center;
}

.play-store-link:hover {
  opacity: 1;
  color: #4a8eff;
  background: rgba(74, 142, 255, 0.1);
  transform: scale(1.1);
}

.grayscale {
  filter: grayscale(100%);
  opacity: 0.5;
}

footer {
  text-align: center;
  padding: 40px 20px;
  color: #555;
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}