/* ============================================================
   culture.css — 城東ウォーリアーズ 文化活動ページ専用スタイル
   ============================================================ */

/* ----------------------------------------------------------
   ヒーロー
   ---------------------------------------------------------- */
.culture-hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}
.culture-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='20'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.culture-hero-inner {
  position: relative;
  max-width: 800px;
}
.culture-hero-badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.culture-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(4px);
}
.culture-hero h1 {
  color: #fff;
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
}
.culture-hero-sub {
  color: rgba(255,255,255,0.85);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 620px;
}
.culture-hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.culture-hero-chip {
  background: rgba(255,255,255,0.18);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
}

/* ----------------------------------------------------------
   ボタン群
   ---------------------------------------------------------- */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn-group--center { justify-content: center; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.3s;
  box-shadow: 0 4px 14px rgba(232,168,23,0.4);
}
.btn-primary:hover { transform: translateY(-2px); background: var(--accent-light); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 2px solid rgba(255,255,255,0.7);
  color: #fff;
  padding: 13px 26px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s;
}
.btn-outline:hover { background: rgba(255,255,255,0.18); transform: translateY(-2px); }

/* ----------------------------------------------------------
   セクション共通
   ---------------------------------------------------------- */
.section-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 900;
  color: var(--text-dark);
  margin-bottom: 16px;
}
.section-desc {
  color: var(--text-mid);
  font-size: 16px;
  max-width: 680px;
  margin-bottom: 48px;
  line-height: 1.8;
}
.culture-section {
  padding: 80px 0;
}
.culture-section--gray  { background: var(--bg); }
.culture-section--white { background: var(--bg-white); }

/* ----------------------------------------------------------
   活動カード
   ---------------------------------------------------------- */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.culture-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary-light);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.culture-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.culture-card--members-only {
  border-left-color: var(--accent);
}
.culture-icon {
  font-size: 40px;
  margin-bottom: 14px;
  display: block;
}
.culture-name {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.culture-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.culture-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(26,107,60,0.08);
  color: var(--primary);
  border: 1px solid rgba(26,107,60,0.2);
}
.culture-tag--members {
  background: rgba(232,168,23,0.12);
  color: #a07010;
  border-color: rgba(232,168,23,0.35);
}
.culture-tag--online {
  background: rgba(33,150,243,0.09);
  color: #1565c0;
  border-color: rgba(33,150,243,0.25);
}
.culture-tag--offline {
  background: rgba(82,102,88,0.08);
  color: var(--text-mid);
  border-color: var(--border);
}
.culture-desc {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.8;
}
.culture-schedule {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-light);
}
.culture-schedule strong { color: var(--text-mid); }

/* ----------------------------------------------------------
   LINE・スタイル説明ボックス
   ---------------------------------------------------------- */
.style-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.style-box {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.style-box-icon {
  font-size: 36px;
  margin-bottom: 14px;
}
.style-box h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.style-box p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.8;
}

/* ----------------------------------------------------------
   CTA セクション
   ---------------------------------------------------------- */
.culture-cta {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 80px 0;
  text-align: center;
}
.culture-cta h2 {
  color: #fff;
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 900;
  margin-bottom: 16px;
}
.culture-cta p {
  color: rgba(255,255,255,0.85);
  font-size: 16px;
  margin-bottom: 36px;
}

/* ----------------------------------------------------------
   AIラボカード（強調版）
   ---------------------------------------------------------- */
.culture-card--ai-lab {
  background: linear-gradient(160deg, #f0fff6 0%, #fff 60%) !important;
  border: 2px solid var(--primary) !important;
  box-shadow: 0 8px 40px rgba(26,107,60,.18) !important;
  position: relative;
}

.culture-card-ai-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.culture-ai-highlight-badge {
  display: inline-block;
  background: #e8f7ee;
  color: var(--primary);
  border: 1px solid var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 20px;
}

.culture-ai-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}
.culture-ai-value {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(26,107,60,.08);
  border-radius: 20px;
  padding: 4px 12px;
}

.culture-ai-price {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary-dark);
  background: rgba(26,107,60,.07);
  border-radius: 8px;
  padding: 10px 16px;
  margin: 8px 0 12px;
}
.culture-ai-price strong { color: var(--primary); font-size: 1.15em; }

.culture-ai-cta-btn {
  background: var(--primary) !important;
  color: #fff !important;
  font-weight: 900 !important;
}
.culture-ai-cta-btn:hover {
  background: var(--primary-dark) !important;
}

/* ----------------------------------------------------------
   レスポンシブ
   ---------------------------------------------------------- */
@media (max-width: 768px) {
  .culture-hero  { padding: 80px 0 60px; }
  .culture-section { padding: 60px 0; }
  .culture-grid  { grid-template-columns: 1fr; }
  .style-boxes   { grid-template-columns: 1fr; }
}