/* ポートフォリオサイト用カスタムCSS */

:root {
  --primary-color: #6366f1;
  --secondary-color: #8b5cf6;
  --accent-color: #06b6d4;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

/* ヘッダー */
.navbar {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
  box-shadow: var(--shadow-md);
  padding: 0.75rem 0;
}

/* デスクトップでのみ横並びを強制 */
@media (min-width: 992px) {
  .navbar-nav {
    flex-direction: row !important;
    display: flex !important;
  }

  .navbar-nav .nav-item {
    display: inline-block !important;
  }
}

/* モバイルでは通常のBootstrapの動作を維持 */
@media (max-width: 991.98px) {
  .navbar-collapse .navbar-nav {
    flex-direction: column !important;
  }
  
  .navbar-collapse .navbar-nav .nav-item {
    display: block !important;
    width: 100%;
  }
  
  .navbar-collapse .navbar-nav .nav-link {
    padding: 1rem;
    margin: 0.25rem 0;
    border-radius: 0.5rem;
    background-color: rgba(255, 255, 255, 0.05);
  }
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: white !important;
}

.navbar-toggler {
  border: none !important;
  padding: 0.25rem 0.5rem !important;
}

.navbar-toggler:focus {
  box-shadow: none !important;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  transition: all 0.3s ease;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  margin: 0 0.25rem;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.navbar-nav .nav-link:hover {
  color: white !important;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.navbar-text {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
}

/* ドロップダウンメニューの改善 */
.dropdown-menu {
  border: none;
  border-radius: 0.75rem;
  box-shadow: var(--shadow-lg);
  background: var(--bg-primary);
}

.dropdown-item {
  padding: 0.75rem 1rem;
  transition: all 0.3s ease;
}

.dropdown-item:hover {
  background-color: var(--bg-secondary);
  color: var(--primary-color);
}

.dropdown-item-text {
  color: var(--text-primary);
}

/* メインコンテンツ */
main {
  min-height: calc(100vh - 200px);
  padding: 1rem 0;
}

.container {
  max-width: 1200px;
  padding-left: 1rem;
  padding-right: 1rem;
}

/* カード */
.card {
  border: none;
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  overflow: hidden;
  background: var(--bg-primary);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  padding: 1.25rem;
}

.card-body {
  padding: 1.5rem;
}

/* ボタン */
.btn {
  border-radius: 0.75rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  touch-action: manipulation;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
}

.btn-outline-primary:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: white;
}

.btn-danger:hover {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  transform: translateY(-2px);
}

/* ホームページ */
.hero-section {
  text-align: center;
  padding: 2rem 1rem;
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  border-radius: 1rem;
  margin-bottom: 2rem;
}

.hero-section h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-section p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.quick-link-card {
  background: var(--bg-primary);
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--text-primary);
  border: 2px solid transparent;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.quick-link-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
  color: var(--text-primary);
  text-decoration: none;
}

.quick-link-card h3 {
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

/* ポートフォリオ一覧 */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.portfolio-card {
  background: var(--bg-primary);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.portfolio-thumbnail {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2.5rem;
}

.portfolio-content {
  padding: 1.25rem;
}

.portfolio-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  text-decoration: none;
  line-height: 1.3;
}

.portfolio-title:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.portfolio-language {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.portfolio-description {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  line-height: 1.5;
  font-size: 0.95rem;
}

/* ポートフォリオ詳細 */
.portfolio-detail {
  background: var(--bg-primary);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.portfolio-detail h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.portfolio-detail img {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 0.75rem;
  margin: 1.25rem 0;
  box-shadow: var(--shadow-md);
}

.portfolio-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

/* テーブル */
.table {
  background: var(--bg-primary);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  font-size: 0.95rem;
}

.table thead th {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border: none;
  padding: 0.875rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.table tbody td {
  padding: 0.875rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.table tbody tr:hover {
  background-color: var(--bg-secondary);
}

/* フッター */
footer {
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  color: white;
  text-align: center;
  padding: 1.5rem 0;
  margin-top: 2rem;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
  .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
  
  .hero-section {
    padding: 1.5rem 0.75rem;
    margin-bottom: 1.5rem;
  }
  
  .hero-section h1 {
    font-size: 1.875rem;
    line-height: 1.3;
  }
  
  .hero-section p {
    font-size: 1rem;
    margin-bottom: 1.25rem;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  
  .quick-links {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .quick-link-card {
    padding: 1.25rem;
    min-height: 100px;
  }
  
  .portfolio-actions {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
    padding: 0.875rem 1.25rem;
  }
  
  .card-body {
    padding: 1.25rem;
  }
  
  .portfolio-content {
    padding: 1rem;
  }
  
  .portfolio-detail {
    padding: 1.25rem;
  }
  
  .portfolio-detail h1 {
    font-size: 1.75rem;
  }
  
  .navbar-brand {
    font-size: 1.125rem;
  }
  
  .navbar-nav .nav-link {
    padding: 1rem;
    margin: 0.25rem 0;
    border-radius: 0.5rem;
    background-color: rgba(255, 255, 255, 0.05);
  }
  
  .navbar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .dropdown-menu {
    margin-top: 0.5rem;
    border-radius: 0.5rem;
  }
  
  .table {
    font-size: 0.875rem;
  }
  
  .table thead th,
  .table tbody td {
    padding: 0.75rem 0.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  
  .hero-section {
    padding: 1.25rem 0.5rem;
  }
  
  .hero-section h1 {
    font-size: 1.625rem;
  }
  
  .hero-section p {
    font-size: 0.95rem;
  }
  
  .quick-link-card {
    padding: 1rem;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .portfolio-content {
    padding: 0.875rem;
  }
  
  .portfolio-detail {
    padding: 1rem;
  }
  
  .portfolio-detail h1 {
    font-size: 1.5rem;
  }
  
  .btn {
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
  }
  
  .table {
    font-size: 0.8rem;
  }
  
  .table thead th,
  .table tbody td {
    padding: 0.625rem 0.375rem;
  }
}

/* タッチデバイス最適化 */
@media (hover: none) and (pointer: coarse) {
  .btn:hover {
    transform: none;
  }
  
  .card:hover {
    transform: none;
  }
  
  .quick-link-card:hover {
    transform: none;
  }
  
  .portfolio-card:hover {
    transform: none;
  }
  
  .navbar-nav .nav-link:hover {
    transform: none;
  }
}

/* アニメーション */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* ローディング */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* フォーム要素の最適化 */
input, textarea, select {
  font-size: 16px !important; /* iOS Safariでのズーム防止 */
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  transition: border-color 0.3s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* スクロールバーの最適化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}