/* ============================================
   Achievements Page Styles
   ============================================ */

/* Header */
.achievements-header {
  padding: 80px 0 40px;
  background: var(--gray-100);
}

.achievements-header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--black);
  margin-bottom: 8px;
}

.header-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
}

.back-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-600);
  margin-bottom: 24px;
  transition: var(--transition);
}

.back-link:hover {
  color: var(--black);
}

/* Summary Stats */
.summary-stats {
  padding: 60px 0;
  background: var(--black);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat-number {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--gray-500);
}

/* Section Headings */
.achievement-section {
  padding: 80px 0;
}

.achievement-section.alt-bg {
  background: var(--gray-100);
}

.section-heading {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 700;
  color: var(--black);
  margin-bottom: 40px;
}

.heading-number {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.heading-subtitle {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-500);
}

.subsection-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-700);
  margin: 40px 0 20px;
}

.subsection-title:first-of-type {
  margin-top: 0;
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  margin: 0 -24px;
  padding: 0 24px;
}

.achievement-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 600px;
}

.achievement-table thead {
  background: var(--gray-800);
}

.achievement-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
}

.achievement-table tbody tr {
  border-bottom: 1px solid var(--gray-200);
  transition: background 0.2s ease;
}

.achievement-table tbody tr:hover {
  background: rgba(37, 99, 235, 0.05);
}

.alt-bg .achievement-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.5);
}

.achievement-table td {
  padding: 14px 16px;
  color: var(--gray-700);
  vertical-align: top;
}

.achievement-table td:first-child {
  white-space: nowrap;
  font-weight: 500;
  color: var(--gray-800);
}

.achievement-table a {
  color: var(--accent);
  font-weight: 500;
  transition: var(--transition);
}

.achievement-table a:hover {
  color: var(--accent-light);
  text-decoration: underline;
}

/* Community Table - 名称 column bold */
.community-table td:nth-child(3) {
  font-weight: 700;
  color: var(--black);
}

/* Education Table - 機関・学部 column bold */
.education-table td:nth-child(3) {
  font-weight: 700;
  color: var(--black);
}

/* Timeline Table */
.timeline-table td:first-child {
  font-weight: 700;
  color: var(--black);
}

.timeline-table td:nth-child(2) {
  font-weight: 600;
  color: var(--black);
}

/* Product Cards */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 32px;
}

.product-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-600);
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  border-color: var(--gray-700);
}

.product-image {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--gray-600);
}

.product-image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-info {
  padding: 24px;
}

.product-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: var(--transition);
}

.product-card:hover .product-link {
  color: var(--accent-light);
}

.product-info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 8px;
}

.product-info p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* Footer */
.achievements-footer {
  padding: 80px 0 60px;
  background: var(--gray-900);
  text-align: center;
}

.achievements-footer h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.achievements-footer > .container > p {
  font-size: 1rem;
  color: var(--gray-500);
  margin-bottom: 32px;
}

.contact-list {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.achievements-footer .back-link {
  color: var(--gray-500);
  margin-bottom: 0;
}

.achievements-footer .back-link:hover {
  color: var(--white);
}

/* Responsive */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .achievement-section {
    padding: 60px 0;
  }

  .section-heading {
    flex-direction: column;
    gap: 8px;
  }

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

/* Education Table - min-width for horizontal scroll on mobile */
.education-table {
  min-width: 900px;
}

/* Mobile column min-widths (スマホのみ) */
@media (max-width: 768px) {
  /* コミュニティ・イベント */
  .community-table th:nth-child(1) { min-width: 5em; }
  .community-table th:nth-child(2) { min-width: 7em; }
  .community-table th:nth-child(3) { min-width: 10em; }
  .community-table th:nth-child(4) { min-width: 13em; }
  .community-table th:nth-child(5) { min-width: 16em; }
  .community-table th:nth-child(6) { min-width: 8em; }

  /* 大学 */
  .university-table th:nth-child(1) { min-width: 10em; }
  .university-table th:nth-child(2) { min-width: 5em; }
  .university-table th:nth-child(3) { min-width: 7em; }
  .university-table th:nth-child(4) { min-width: 9em; }
  .university-table th:nth-child(5) { min-width: 10em; }
  .university-table th:nth-child(6) { min-width: 8em; }
  .university-table th:nth-child(7) { min-width: 4em; }
  .university-table th:nth-child(8) { min-width: 8em; }
  .university-table th:nth-child(9) { min-width: 10em; }

  /* その他教育機関 */
  .other-edu-table th:nth-child(1) { min-width: 10em; }
  .other-edu-table th:nth-child(2) { min-width: 8em; }
  .other-edu-table th:nth-child(3) { min-width: 11em; }
  .other-edu-table th:nth-child(4) { min-width: 10em; }
  .other-edu-table th:nth-child(5) { min-width: 16em; }
  .other-edu-table th:nth-child(6) { min-width: 8em; }
  .other-edu-table th:nth-child(7) { min-width: 4em; }
  .other-edu-table th:nth-child(8) { min-width: 8em; }
  .other-edu-table th:nth-child(9) { min-width: 8em; }

  /* メディア掲載 */
  .media-table th:nth-child(1) { min-width: 10em; }
  .media-table th:nth-child(2) { min-width: 7em; }
  .media-table th:nth-child(3) { min-width: 16em; }
  .media-table th:nth-child(4) { min-width: 5em; }

  /* プラットフォーム別 */
  .platform-table th:nth-child(1) { min-width: 9em; }
  .platform-table th:nth-child(2) { min-width: 8em; }
  .platform-table th:nth-child(3) { min-width: 5em; }
  .platform-table th:nth-child(4) { min-width: 5em; }

  /* 注目記事 */
  .articles-table th:nth-child(1) { min-width: 4em; }
  .articles-table th:nth-child(2) { min-width: 20em; }
  .articles-table th:nth-child(3) { min-width: 7em; }
  .articles-table th:nth-child(4) { min-width: 5em; }

  /* 書籍 */
  .books-table th:nth-child(1) { min-width: 5em; }
  .books-table th:nth-child(2) { min-width: 23em; }
  .books-table th:nth-child(3) { min-width: 4em; }
  .books-table th:nth-child(4) { min-width: 9em; }
  .books-table th:nth-child(5) { min-width: 8em; }
  .books-table th:nth-child(6) { min-width: 10em; }
  .books-table th:nth-child(7) { min-width: 5em; }

  /* タイムライン */
  .timeline-table th:nth-child(1) { min-width: 6em; }
  .timeline-table th:nth-child(2) { min-width: 14em; }
  .timeline-table th:nth-child(3) { min-width: 16em; }
}

@media (max-width: 480px) {
  .achievements-header {
    padding: 60px 0 32px;
  }

  .summary-stats {
    padding: 40px 0;
  }

  .stats-grid {
    gap: 20px 16px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .contact-list {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
}

/* PDF Modal */
.pdf-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  justify-content: center;
  align-items: center;
  padding: 24px;
  box-sizing: border-box;
}

.pdf-modal.active {
  display: flex;
}

.pdf-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pdf-modal.active .pdf-modal-overlay {
  opacity: 1;
}

.pdf-modal-content {
  position: relative;
  width: 90%;
  max-width: 900px;
  max-height: calc(100vh - 48px);
  height: 100%;
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.3s ease, transform 0.3s ease;
  display: flex;
  flex-direction: column;
}

.pdf-modal.active .pdf-modal-content {
  opacity: 1;
  transform: scale(1);
}

.pdf-modal-content iframe {
  width: 100%;
  flex: 1;
  border: none;
  border-radius: var(--radius);
  background: var(--white);
}

.pdf-modal-close {
  align-self: flex-end;
  margin-bottom: 8px;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  transition: opacity 0.2s ease;
}

.pdf-modal-close:hover {
  opacity: 0.7;
}