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

:root {
  --bg: #1a1a2e;
  --surface: #16213e;
  --accent: #9B59B6;
  --text: #e0e0e0;
  --text-muted: #888;
  --border: #2a2a4a;
  --card-hover: #1e2a4a;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
  min-height: 100vh;
}

/* ─── Header ─────────────────────────────────────────────────── */
.portal-header {
  text-align: center;
  padding: 48px 24px 32px;
}

.portal-logo {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
}

.portal-tagline {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ─── Main grid ──────────────────────────────────────────────── */
.portal-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

/* ─── Game card ──────────────────────────────────────────────── */
.game-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  text-decoration: none;
  color: var(--text);
  transition: background 0.18s, border-color 0.18s, transform 0.12s;
}

.game-card:hover {
  background: var(--card-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.game-icon {
  font-size: 2.4rem;
  flex-shrink: 0;
  width: 56px;
  text-align: center;
}

.game-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.game-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.game-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.game-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.game-players {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.game-badge {
  font-size: 0.72rem;
  background: var(--accent);
  color: #fff;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 480px) {
  .portal-logo { font-size: 1.5rem; }
  .portal-header { padding: 32px 16px 24px; }
}