:root {
  --bg: #f5ebdd;
  --card-bg: #fffaf3;
  --border: #e3d5bf;
  --text: #413333;
  --text-muted: #7a655f;
  --accent: #f2765e;
  --accent-hover: #d95f48;
  --tag-bg: #315b8c1a;
  --tag-text: #315b8c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Tahoma, sans-serif;
  line-height: 1.6;
}

.lang-toggle-btn {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  background: var(--card-bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(65, 51, 51, 0.12);
  transition: color 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease;
}

.lang-toggle-btn:hover {
  color: var(--text);
  border-color: var(--text-muted);
  box-shadow: 0 2px 6px rgba(65, 51, 51, 0.16);
}

.lang-toggle-btn:active {
  box-shadow: 0 1px 2px rgba(65, 51, 51, 0.12);
}

.site-header {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
}

.site-header h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
}

.subtitle {
  color: var(--text-muted);
  max-width: 40rem;
  margin: 0 auto;
}

#app {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

#status {
  text-align: center;
  color: var(--text-muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card h2 {
  margin: 0;
  font-size: 1.15rem;
}

.card-title-link {
  color: inherit;
  text-decoration: none;
}

.card-title-link:hover h2 {
  text-decoration: underline;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

.requires {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  background: var(--tag-bg);
  color: var(--tag-text);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.65rem 1rem;
  border-radius: 6px;
  border: 2px solid var(--text);
  font-weight: 700;
  box-shadow: 3px 3px 0 var(--text);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.download-btn .arrow {
  font-size: 1.1em;
  line-height: 1;
}

.download-btn:hover {
  background: var(--accent-hover);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--text);
}

.download-btn:active {
  transform: translate(0, 0);
  box-shadow: 1px 1px 0 var(--text);
}

.error {
  text-align: center;
  color: #ff6b6b;
}

.detail-main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 5rem 1.5rem 3rem;
}

.back-link {
  display: inline-block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.back-link:hover {
  color: var(--text);
  text-decoration: underline;
}

.detail-card h1 {
  margin: 0 0 0.75rem;
  font-size: 1.6rem;
}

.detail-card p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

.requires-block {
  margin-bottom: 1.5rem;
}

.requires-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.site-footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 1.5rem;
  border-top: 1px solid var(--border);
}