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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: #1a1a1a;
  color: #e0e0e0;
  line-height: 1.7;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px;
}

a {
  color: #6ca6e0;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Header */
.site-header {
  border-bottom: 1px solid #333;
  padding: 16px 0;
}

.site-header .container {
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-header .site-name {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
}

.site-header .site-name:hover {
  text-decoration: none;
  opacity: 0.8;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-nav a {
  color: #ccc;
  font-size: 0.9rem;
}

.lang-switcher {
  display: inline-flex;
  gap: 4px;
}

.lang-switcher a {
  padding: 4px 10px;
  border: 1px solid #555;
  border-radius: 4px;
  font-size: 0.8rem;
  color: #ccc;
}

.lang-switcher a.active {
  background: #333;
  color: #fff;
  border-color: #888;
}

/* Page header */
.page-header {
  text-align: center;
  margin-bottom: 48px;
}

.page-header h1 {
  font-size: 2rem;
  color: #ffffff;
  margin-bottom: 8px;
}

.page-header p {
  color: #999;
  font-size: 0.95rem;
}

/* Content */
.content h2 {
  font-size: 1.2rem;
  color: #ffffff;
  border-bottom: 1px solid #333;
  padding-bottom: 8px;
  margin-top: 40px;
  margin-bottom: 16px;
}

.content p {
  color: #ccc;
  margin-bottom: 8px;
}

.content li {
  color: #ccc;
  margin-bottom: 8px;
}

.content ul {
  padding-left: 20px;
}

/* App card */
.app-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.app-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: #242424;
  border-radius: 12px;
  border: 1px solid #333;
  text-decoration: none;
  transition: border-color 0.2s;
}

.app-card:hover {
  border-color: #6ca6e0;
  text-decoration: none;
}

.app-icon {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: #333;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  overflow: hidden;
}

.app-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
}

.app-info h3 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.app-info p {
  color: #999;
  font-size: 0.9rem;
  margin: 0;
}

/* Footer */
.site-footer {
  text-align: center;
  color: #666;
  font-size: 0.85rem;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #333;
}

.footer-links {
  margin-bottom: 12px;
}

.footer-links a {
  color: #888;
  margin: 0 8px;
  font-size: 0.85rem;
}

/* Language selector page */
.lang-selector {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
}

.lang-selector h1 {
  color: #ffffff;
  font-size: 2.4rem;
  margin-bottom: 8px;
}

.lang-selector .subtitle {
  color: #999;
  font-size: 1rem;
  margin-bottom: 48px;
}

.lang-buttons {
  display: flex;
  gap: 16px;
}

.lang-buttons a {
  display: block;
  padding: 14px 40px;
  border: 1px solid #555;
  border-radius: 8px;
  color: #e0e0e0;
  font-size: 1rem;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}

.lang-buttons a:hover {
  background: #333;
  border-color: #888;
  text-decoration: none;
}

/* Legal page */
.legal-content h2 {
  font-size: 1.1rem;
}

.legal-content p,
.legal-content li {
  font-size: 0.95rem;
}

/* Back link */
.back-link {
  margin-bottom: 24px;
}

/* Responsive */
@media (max-width: 480px) {
  .page-header h1 {
    font-size: 1.6rem;
  }

  .lang-selector h1 {
    font-size: 1.8rem;
  }

  .lang-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .lang-buttons a {
    padding: 12px 32px;
  }

  .app-card {
    flex-direction: column;
    text-align: center;
  }

  .site-header .container {
    flex-direction: column;
    gap: 12px;
  }
}