/* =====================================================
   Theme A — LIGHT（ライト）
   明るい・クリーン・yutura.net風 一般ポータル
   ===================================================== */
[data-theme="A"] {
  --bg-primary: #F5F6FA;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #EEF0F7;
  --bg-overlay: rgba(245, 246, 250, 0.96);

  --accent-primary: #5B21B6;
  --accent-glow: #7C3AED;
  --accent-neon: #10B981;
  --accent-hot: #F59E0B;
  --accent-gold: #F59E0B;
  --accent-danger: #EF4444;

  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --text-accent: #5B21B6;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-active: rgba(91, 33, 182, 0.3);
  --border-glow: rgba(91, 33, 182, 0.5);

  --grad-hero: linear-gradient(160deg, #EEF0F7 0%, #E8E4F8 40%, #EFF8F4 100%);
  --grad-campaign: linear-gradient(135deg, #5B21B6 0%, #7C3AED 100%);
  --grad-card-hot: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(91, 33, 182, 0.04) 100%);

  --glow-primary: 0 4px 20px rgba(91, 33, 182, 0.2);
  --glow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
  --glow-neon: 0 0 12px rgba(16, 185, 129, 0.4);

  --font-display: 'Space Grotesk', 'Noto Sans JP', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;

  --particle-color: rgba(91, 33, 182, 0.15);
}

/* LIGHT専用スタイル */
[data-theme="A"] body {
  background: var(--bg-primary);
}

[data-theme="A"] .site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

[data-theme="A"] .logo-text {
  color: #5B21B6;
}

[data-theme="A"] .logo-icon {
  color: #F59E0B;
}

[data-theme="A"] .nav-link {
  color: #374151;
  font-weight: 600;
}

[data-theme="A"] .nav-link:hover {
  color: #5B21B6;
}

[data-theme="A"] .btn--outline {
  color: #374151;
  border-color: #D1D5DB;
}

[data-theme="A"] .btn--outline:hover {
  background: #F3F4F6;
}

/* ヒーロー：明るいグラデーション */
[data-theme="A"] .hero {
  background: var(--grad-hero);
  position: relative;
  overflow: hidden;
}

[data-theme="A"] .hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(91, 33, 182, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 33, 182, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

[data-theme="A"] .hero-eyebrow {
  color: #5B21B6;
  background: rgba(91, 33, 182, 0.1);
  border: 1px solid rgba(91, 33, 182, 0.2);
  border-radius: 999px;
  display: inline-block;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 700;
}

[data-theme="A"] .hero-title {
  color: #111827;
}

[data-theme="A"] .hero-title-em {
  color: #5B21B6;
  -webkit-text-fill-color: #5B21B6;
  text-shadow: none;
}

[data-theme="A"] .hero-sub {
  color: #4B5563;
}

[data-theme="A"] .hero-stat-num {
  color: #5B21B6;
}

[data-theme="A"] .hero-stat-label {
  color: #6B7280;
}

/* カード ライト */
[data-theme="A"] .campaign-card,
[data-theme="A"] .game-card,
[data-theme="A"] .video-card__thumb {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

[data-theme="A"] .campaign-card:hover {
  box-shadow: 0 8px 32px rgba(91, 33, 182, 0.15);
  border-color: rgba(91, 33, 182, 0.25);
}

[data-theme="A"] .campaign-card__title {
  color: #111827;
}

[data-theme="A"] .campaign-card__game {
  color: #5B21B6;
}

/* セクションヘッダー */
[data-theme="A"] .section-title {
  color: #111827;
}

[data-theme="A"] .section-more {
  color: #5B21B6;
}

/* ランキング */
[data-theme="A"] .ranking-section {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

[data-theme="A"] .rank-row {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="A"] .rank-row:hover {
  background: #F5F6FA;
}

[data-theme="A"] .rank-number.rank-1 {
  color: #F59E0B;
}

[data-theme="A"] .rank-number.rank-2 {
  color: #9CA3AF;
}

[data-theme="A"] .rank-number.rank-3 {
  color: #F59E0B;
  opacity: 0.7;
}

[data-theme="A"] .rank-name {
  color: #111827;
}

/* ゲームカード */
[data-theme="A"] .game-card {
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

[data-theme="A"] .game-card:hover {
  box-shadow: 0 6px 24px rgba(91, 33, 182, 0.15);
  border-color: rgba(91, 33, 182, 0.3);
  transform: translateY(-3px);
}

[data-theme="A"] .game-card__name {
  color: #111827;
}

[data-theme="A"] .game-card__count {
  color: #6B7280;
}

/* CTAセクション */
[data-theme="A"] .cta-section {
  background: linear-gradient(135deg, #5B21B6 0%, #7C3AED 100%);
}

[data-theme="A"] .cta-title {
  color: #FFFFFF;
}

[data-theme="A"] .cta-sub {
  color: rgba(255, 255, 255, 0.85);
}

/* フッター */
[data-theme="A"] .site-footer {
  background: #1F2937;
  color: #D1D5DB;
}

[data-theme="A"] .footer-brand p {
  color: #9CA3AF;
}

/* ゲームタグ */
[data-theme="A"] .game-tag {
  background: rgba(91, 33, 182, 0.1);
  color: #5B21B6;
  border: 1px solid rgba(91, 33, 182, 0.2);
}

/* バッジ */
[data-theme="A"] .nav-badge {
  background: #EF4444;
  color: white;
}

/* プライマリボタン */
[data-theme="A"] .btn--primary {
  background: linear-gradient(135deg, #5B21B6, #7C3AED);
  box-shadow: 0 4px 16px rgba(91, 33, 182, 0.35);
}

[data-theme="A"] .btn--ghost {
  border-color: rgba(91, 33, 182, 0.4);
  color: #5B21B6;
}

[data-theme="A"] .btn--ghost:hover {
  background: rgba(91, 33, 182, 0.08);
}

/* アドミンパネル */
[data-theme="A"] .admin-panel {
  background: #FFFFFF;
  color: #111827;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="A"] .admin-panel h3 {
  color: #111827;
}

[data-theme="A"] .admin-panel__label {
  color: #4B5563;
}

[data-theme="A"] .admin-close {
  color: #9CA3AF;
}

[data-theme="A"] .admin-close:hover {
  color: #111827;
}

[data-theme="A"] .theme-btn {
  color: #4B5563;
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="A"] .theme-btn:hover {
  color: #111827;
  background: rgba(0, 0, 0, 0.08);
}

[data-theme="A"] .theme-btn.active {
  color: #FFFFFF;
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}