/* ========== レスポンシブデザイン ========== */

/* タブレット (1024px以下) */
@media (max-width: 1024px) {
  .hero-content,
  .about-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .name {
    font-size: 3rem;
  }

  .stats {
    justify-content: center;
  }

  /* Career section responsive */
  .career-timeline {
    padding-left: 1.5rem;
  }

  .career-item {
    padding-left: 1.5rem;
  }

  .project-card.featured {
    grid-column: span 1;
  }

  .project-card.featured .project-content {
    grid-template-columns: 1fr;
  }
}

/* モバイル (768px以下) */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--secondary-bg);
    width: 100%;
    text-align: center;
    transition: var(--transition-smooth);
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .section-title {
    font-size: 2.5rem;
  }

  .name {
    font-size: 2.5rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 200px;
    justify-content: center;
  }

  .stats {
    flex-direction: column;
    gap: 1rem;
  }

  /* Skills & Projects mobile adjustments */
  .skills-row,
  .projects-row {
    padding: 0 1rem;
  }

  .skill-card {
    width: 120px;
    min-width: 120px;
    padding: 1rem;
  }

  .project-card {
    width: 250px;
    min-width: 250px;
    padding: 1.2rem;
  }

  .project-overlay {
    opacity: 0.9;
  }

  .project-overlay span {
    font-size: 1rem;
  }

  .project-image {
    height: 120px;
  }

  .tech-categories {
    grid-template-columns: 1fr;
  }

  /* Career section mobile */
  .career-title {
    font-size: 1.3rem;
  }

  .career-timeline {
    padding-left: 1rem;
  }

  .career-timeline::before {
    left: 0.5rem;
  }

  .career-item {
    padding-left: 1.2rem;
  }

  .career-item::before {
    left: -0.3rem;
    width: 10px;
    height: 10px;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem 0;
  }

  .skill-card {
    padding: 1.2rem;
  }

  .skill-image {
    width: 56px;
    height: 56px;
    padding: 10px;
  }

  .skill-name {
    font-size: 0.9rem;
  }

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

  .tech-orbit {
    width: 250px;
    height: 250px;
  }

  /* プロジェクト・ニュースページ */
  .projects-header,
  .news-header {
    padding: 10rem 0 4rem;
  }

  .page-title {
    font-size: 3rem;
  }

  .page-description {
    font-size: 1.1rem;
  }

  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }

  /* ニュースページモバイル */
  .blog-stats {
    gap: 2rem;
    flex-direction: column;
  }

  .category-filters {
    flex-direction: column;
    align-items: center;
  }

  .filter-btn {
    width: 200px;
  }

  .news-card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .news-meta {
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
  }

  .modal-content {
    width: 95%;
    margin: 1rem;
  }

  .modal-header {
    padding: 1.5rem;
  }

  .modal-body {
    padding: 1.5rem;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .article-content {
    font-size: 1rem;
  }

  .news-actions {
    flex-direction: column;
    align-items: center;
  }
}

/* 小画面モバイル (480px以下) */
@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero {
    padding: 0 1rem;
  }

  .section-title {
    font-size: 2rem;
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }

  .name {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .terminal-body {
    padding: 1rem;
    font-size: 0.8rem;
  }
}