/* Midnight Plum & Rose Gold Theme */
:root {
  --bg-color: #141018;
  --card-bg: #1D1624;
  --accent-color: #C83E74;
  --accent-hover: #E07A5F;
  --text-main: #F4F1DE;
  --text-muted: #A8A2B2;
  --border-color: rgba(200, 62, 116, 0.3);
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: 'Segoe UI', 'Meiryo', sans-serif;
  margin: 0;
  padding: 20px;
  line-height: 1.6;
}

header {
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 20px;
  margin-bottom: 25px;
}

h1 {
  margin: 0;
  font-size: 1.8rem;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 5px;
}

/* Timeline Filter Navigation */
.year-filter {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-label {
  font-weight: bold;
  font-size: 0.85rem;
  color: var(--accent-color);
}

.year-btn {
  background: var(--card-bg);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 5px 12px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.year-btn:hover, .year-btn.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
}

/* Card Grid Layout */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.game-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.game-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-color);
}

.game-card img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid #000;
  margin-bottom: 10px;
}

.game-title {
  font-size: 1rem;
  font-weight: bold;
  margin: 5px 0;
  color: var(--text-main);
}

/* Badge Tags */
.tag-container {
  display: flex;
  gap: 5px;
  margin-top: auto;
  padding-top: 8px;
}

.tag {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 3px;
  font-weight: bold;
}

.tag-18 { background: #8B0000; color: #FFF; }
.tag-demo { border: 1px solid var(--accent-color); color: var(--accent-color); }
.tag-year { background: #2A2233; color: var(--text-muted); }

/* Individual Game Page Layout */
.back-btn {
  display: inline-block;
  color: var(--accent-color);
  text-decoration: none;
  margin-bottom: 20px;
  font-weight: bold;
}

.back-btn:hover { text-decoration: underline; }

.game-detail-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 30px;
  background: var(--card-bg);
  padding: 25px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .game-detail-layout { grid-template-columns: 1fr; }
}

.game-cover-main {
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

.download-box {
  margin-top: 25px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-download {
  background-color: var(--accent-color);
  color: #FFF;
  padding: 12px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s ease;
}

.btn-download:hover { background-color: var(--accent-hover); }

.btn-source {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
}

.btn-source:hover { color: var(--text-main); }