/* つけトク サイト - アプリ風デザイン */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&display=swap');

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

body {
  font-family: 'Noto Sans JP', Arial, sans-serif;
  line-height: 1.8;
  color: #1a1a2e;
  background: #f8f9fa;
}

/* ========== ヘッダー ========== */
header {
  background: linear-gradient(135deg, #1e3a5f 0%, #0f1f3d 100%);
  color: #fff;
  text-align: center;
  padding: 3rem 1.5rem;
}

.header-inner {
  max-width: 800px;
  margin: 0 auto;
}

.app-title {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  color: #fbbf24;
}

.app-tagline {
  font-size: 1.1rem;
  color: #cbd5e1;
  font-weight: 400;
}

/* ========== メイン ========== */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.section {
  margin-bottom: 2.5rem;
}

.section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #1e3a5f;
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 3px solid #fbbf24;
  display: inline-block;
}

.section p {
  color: #374151;
}

/* ========== 機能カード ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
}

.feature-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(30, 58, 95, 0.12);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 0.6rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #1e3a5f;
  margin-bottom: 0.4rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: #6b7280;
  line-height: 1.6;
}

/* ========== 利用シーン ========== */
.scene-list {
  list-style: none;
  padding: 0;
}

.scene-list li {
  background: #fff;
  border-radius: 8px;
  padding: 0.8rem 1.2rem;
  margin-bottom: 0.6rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.scene-emoji {
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* ========== 利用の流れ ========== */
.steps-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.step {
  background: #fff;
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  flex: 1;
  min-width: 150px;
  max-width: 220px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  border-radius: 50%;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-text {
  font-size: 0.9rem;
  color: #374151;
  font-weight: 500;
}

.step-arrow {
  color: #fbbf24;
  font-size: 1.2rem;
  font-weight: 700;
}

/* ========== 詳細テーブル ========== */
.detail-box {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  overflow-x: auto;
}

.detail-table {
  width: 100%;
  border-collapse: collapse;
}

.detail-table th,
.detail-table td {
  padding: 0.7rem 1rem;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
  font-size: 0.95rem;
}

.detail-table th {
  color: #1e3a5f;
  font-weight: 600;
  white-space: nowrap;
  width: 140px;
}

.detail-table td {
  color: #374151;
}

.detail-table td a {
  color: #2563eb;
  text-decoration: none;
}

.detail-table td a:hover {
  text-decoration: underline;
}

.detail-table tr:last-child th,
.detail-table tr:last-child td {
  border-bottom: none;
}

/* ========== 技術構成 ========== */
.tech-list {
  list-style: none;
  padding: 0;
}

.tech-list li {
  background: #fff;
  border-radius: 8px;
  padding: 0.7rem 1.2rem;
  margin-bottom: 0.5rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  font-size: 0.95rem;
  color: #374151;
}

/* ========== 提供者詳細 ========== */
.provider-detail p {
  font-size: 1rem;
}

/* ========== プライバシーポリシー ========== */
.policy h2 {
  display: block;
  margin-top: 1.8rem;
}

.policy ul {
  margin: 0.6rem 0 0.6rem 1.5rem;
  color: #374151;
}

.policy ul li {
  margin-bottom: 0.3rem;
}

.contact-info {
  background: #f1f5f9;
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin: 0.5rem 0;
}

.policy-date {
  margin-top: 2rem;
  color: #9ca3af;
  font-size: 0.9rem;
}

/* ========== FAQ ========== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.faq-item {
  background: #fff;
  border-radius: 8px;
  padding: 0;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

.faq-item summary {
  padding: 0.9rem 1.2rem;
  font-weight: 600;
  color: #1e3a5f;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.faq-item summary::before {
  content: 'Q.';
  color: #fbbf24;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-item summary::after {
  content: '\25BC';
  margin-left: auto;
  font-size: 0.7rem;
  color: #9ca3af;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item p {
  padding: 0 1.2rem 1rem 1.2rem;
  color: #374151;
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item p a {
  color: #2563eb;
  text-decoration: none;
}

.faq-item p a:hover {
  text-decoration: underline;
}

/* ========== フッター ========== */
footer {
  background: #0f1f3d;
  color: #94a3b8;
  text-align: center;
  padding: 1.5rem;
  margin-top: 2rem;
}

.footer-inner a {
  color: #fbbf24;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.footer-inner a:hover {
  text-decoration: underline;
}

.copyright {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: #64748b;
}

/* ========== レスポンシブ（モバイル） ========== */
@media (max-width: 600px) {
  header {
    padding: 2rem 1rem;
  }

  .app-title {
    font-size: 2rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .steps-container {
    flex-direction: column;
  }

  .step {
    max-width: 100%;
  }

  .step-arrow {
    transform: rotate(90deg);
  }

  main {
    padding: 1.5rem 1rem;
  }
}