/*
Theme Name: ネコフリークス大学
Theme URI: https://nekofreaks-university.com
Author: ネコフリークス大学開発チーム
Author URI: https://nekofreaks-university.com
Description: 猫の論文要約と講座を提供する教育メディア「ネコフリークス大学」のオリジナルテーマ
Version: 1.0.0
License: GPL v2 or later
Text Domain: nekofreaks-univ
*/

:root {
  --primary: #4a5d7a;
  --secondary: #f4a460;
  --accent: #ff6b6b;
  --bg-main: #fafaf8;
  --bg-paper: #ffffff;
  --bg-board: #2d3e50;
  --maron: #8b4513;
  --ichi: #ff8c00;
  --hachi: #4682b4;
  --jiji: #228b22;
  --daifuku: #9370db;
}

body {
  background-color: var(--bg-main);
  color: #333;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
}

.professor-maron {
  color: var(--maron);
}
.professor-ichi {
  color: var(--ichi);
}
.professor-hachi {
  color: var(--hachi);
}
.professor-jiji {
  color: var(--jiji);
}
.professor-daifuku {
  color: var(--daifuku);
}

/* 講師名の背景色 */
.professor-maron-bg {
  background-color: var(--maron);
}
.professor-ichi-bg {
  background-color: var(--ichi);
}
.professor-hachi-bg {
  background-color: var(--hachi);
}
.professor-jiji-bg {
  background-color: var(--jiji);
}
.professor-daifuku-bg {
  background-color: var(--daifuku);
}

.loading-paw {
  animation: paw-bounce 0.6s ease-in-out infinite;
}

@keyframes paw-bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* 論文カード共通スタイル */
.line-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-clamp: 1;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-clamp: 2;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-clamp: 3;
}

.paper-card {
  position: relative;
}

.paper-card:hover {
  transform: translateY(-4px);
}

/* マーカースタイル */
.marker {
  background: linear-gradient(180deg, transparent 60%, #fef08a 60%);
  padding: 0 2px;
  font-weight: 500;
  color: inherit;
}

.marker:hover {
  background: linear-gradient(180deg, transparent 60%, #fde047 60%);
}

.paper-card .paper-thumbnail img {
  transition: transform 0.3s ease;
}

.paper-card:hover .paper-thumbnail img {
  transform: scale(1.05);
}

/* モバイルメニュー */
.mobile-menu {
  transition: all 0.3s ease;
  transform-origin: top;
}

/* PC表示用のスタイル */
@media (min-width: 768px) {
  .md\:h-12 {
    height: 2.6rem;
  }
  .mobile-menu {
    position: static !important;
    width: auto !important;
    margin-left: 0 !important;
    background: none !important;
    box-shadow: none !important;
    border-top: none !important;
    transform: none !important;
    opacity: 1 !important;
    display: block !important;
  }

  .mobile-menu ul {
    padding: 10px 0 !important;
    flex-direction: row !important;
    flex-wrap: wrap !important;
    max-width: 750px !important;
    justify-content: flex-end !important;
  }

  .mobile-menu li {
    border-bottom: none !important;
    margin: -5px 0 !important;
    padding: 0 !important;
  }

  .mobile-menu a {
    display: inline-flex !important;
    align-items: center !important;
    padding: 0.75rem 1rem !important;
    font-weight: 500 !important;
    font-size: 0.875rem !important;
    line-height: 1.5 !important;
    color: #374151 !important;
    text-decoration: none !important;
    transition: background-color 0.2s ease !important;
    min-height: auto !important;
    border-radius: 0.375rem !important;
    white-space: nowrap !important;
    margin: 0.25rem !important;
  }

  .mobile-menu a:hover {
    background-color: #f3f4f6 !important;
  }

  .mobile-menu a i {
    margin-right: 0.5rem !important;
    width: auto !important;
    text-align: center !important;
  }
}

/* モバイル表示用のスタイル */
@media (max-width: 767px) {
  .mobile-menu {
    display: none;
    transform: scaleY(0);
    opacity: 0;
  }

  .mobile-menu.hidden {
    display: none !important;
    transform: scaleY(0);
    opacity: 0;
  }

  .mobile-menu:not(.hidden) {
    display: block !important;
    transform: scaleY(1);
    opacity: 1;
  }

  .mobile-menu:not(.hidden) {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 50;
    border-top: 1px solid #e5e7eb;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
  }

  .mobile-menu ul {
    padding: 1.5rem;
    max-width: 100%;
  }

  .mobile-menu li {
    border-bottom: 1px solid #f3f4f6;
    margin: 0;
    padding: 0;
  }

  .mobile-menu li:last-child {
    border-bottom: none;
  }

  .mobile-menu a {
    display: flex;
    align-items: center;
    padding: 1rem 0;
    font-weight: 500;
    font-size: 1.1rem;
    line-height: 1.4;
    color: #374151;
    text-decoration: none;
    transition: all 0.2s ease;
    min-height: 3rem;
  }

  .mobile-menu a i {
    margin-right: 0.75rem;
    width: 1.25rem;
    text-align: center;
  }

  .mobile-menu a:hover {
    color: #1f2937;
    background-color: #f9fafb;
    margin: 0 -1.5rem;
    padding: 1rem 1.5rem;
    transform: translateX(0.25rem);
  }
}

.menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: #374151;
  transition: color 0.2s ease;
}

.menu-toggle:hover {
  color: #1f2937;
}

.menu-toggle svg {
  transition: transform 0.2s ease;
}

.menu-toggle[aria-expanded="true"] svg {
  transform: rotate(90deg);
}

/* サイトロゴ */
.site-title img {
  transition: transform 0.2s ease;
}

.site-title img:hover {
  transform: scale(1.05);
}

/* WordPress投稿コンテンツ用プロースタイル */
.prose {
  color: #374151;
  max-width: none;
}

.prose p {
  margin-top: 1.25em;
  margin-bottom: 1.25em;
  line-height: 1.75;
}

.prose h1 {
  color: #111827;
  font-weight: 800;
  font-size: 2.25em;
  margin-top: 0;
  margin-bottom: 0.8888889em;
  line-height: 1.1111111;
}

.prose h2 {
  color: #111827;
  font-weight: 700;
  font-size: 1.5em;
  margin-top: 2em;
  margin-bottom: 1em;
  line-height: 1.3333333;
}

.prose h3 {
  color: #111827;
  font-weight: 600;
  font-size: 1.25em;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
  line-height: 1.6;
}

.prose h4,
.prose h5,
.prose h6 {
  color: #111827;
  font-weight: 600;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  line-height: 1.5;
}

.prose strong {
  color: #111827;
  font-weight: 600;
}

.prose ul,
.prose ol {
  margin-top: 1.25em;
  margin-bottom: 1.25em;
  padding-left: 1.625em;
}

.prose li {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}

.prose ul > li {
  position: relative;
  padding-left: 0.375em;
}

.prose ul > li::before {
  content: "";
  position: absolute;
  background-color: #d1d5db;
  border-radius: 50%;
  width: 0.375em;
  height: 0.375em;
  top: 0.6875em;
  left: -1.25em;
}

.prose ol > li {
  position: relative;
  padding-left: 0.375em;
}

.prose ol > li::before {
  content: counter(list-item, decimal) ".";
  position: absolute;
  font-weight: 400;
  color: #6b7280;
  left: -1.625em;
}

.prose blockquote {
  font-weight: 500;
  font-style: italic;
  color: #111827;
  border-left-width: 0.25rem;
  border-left-color: #e5e7eb;
  quotes: "\201C" "\201D" "\2018" "\2019";
  margin-top: 1.6em;
  margin-bottom: 1.6em;
  padding-left: 1em;
}

.prose blockquote p:first-of-type::before {
  content: open-quote;
}

.prose blockquote p:last-of-type::after {
  content: close-quote;
}

.prose code {
  color: #111827;
  font-weight: 600;
  font-size: 0.875em;
  background-color: #f3f4f6;
  padding: 0.125rem 0.25rem;
  border-radius: 0.25rem;
}

.prose pre {
  color: #e5e7eb;
  background-color: #374151;
  overflow-x: auto;
  font-size: 0.875em;
  line-height: 1.7142857;
  margin-top: 1.7142857em;
  margin-bottom: 1.7142857em;
  border-radius: 0.375rem;
  padding: 0.8571429em 1.1428571em;
}

.prose pre code {
  background-color: transparent;
  border-width: 0;
  border-radius: 0;
  padding: 0;
  font-weight: 400;
  color: inherit;
  font-size: inherit;
  font-family: inherit;
  line-height: inherit;
}

.prose table {
  width: 100%;
  table-layout: auto;
  text-align: left;
  margin-top: 2em;
  margin-bottom: 2em;
  font-size: 0.875em;
  line-height: 1.7142857;
}

.prose thead {
  color: #111827;
  font-weight: 600;
  border-bottom-width: 1px;
  border-bottom-color: #d1d5db;
}

.prose thead th {
  vertical-align: bottom;
  padding-right: 0.5714286em;
  padding-bottom: 0.5714286em;
  padding-left: 0.5714286em;
}

.prose tbody tr {
  border-bottom-width: 1px;
  border-bottom-color: #e5e7eb;
}

.prose tbody td {
  vertical-align: top;
  padding: 0.5714286em;
}

.prose img {
  margin-top: 2em;
  margin-bottom: 2em;
  max-width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

.prose figure {
  margin-top: 2em;
  margin-bottom: 2em;
}

.prose figcaption {
  color: #6b7280;
  font-size: 0.875em;
  line-height: 1.4285714;
  margin-top: 0.8571429em;
  text-align: center;
}

.prose a {
  color: #3b82f6;
  text-decoration: underline;
  font-weight: 500;
}

.prose a:hover {
  color: #1d4ed8;
}

.prose hr {
  border-color: #e5e7eb;
  border-top-width: 1px;
  margin-top: 3em;
  margin-bottom: 3em;
}

/* 講座専用のproseスタイル調整 */
.prose.episode-content {
  font-size: 1.125rem;
  line-height: 1.7;
}

.prose.episode-content p {
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}

.prose.episode-content h2 {
  color: #1f2937;
  border-bottom: 2px solid #e5e7eb;
  padding-bottom: 0.5em;
  margin-top: 2.5em;
  margin-bottom: 1.5em;
}

.prose.episode-content h3 {
  color: #374151;
  margin-top: 2em;
  margin-bottom: 1em;
}

/* 猫らしいアクセント */
.prose.episode-content blockquote {
  border-left-color: #ff6b6b;
  background-color: #fef7f7;
  padding: 1em 1.5em;
  border-radius: 0.5rem;
  position: relative;
}

.prose.episode-content blockquote::before {
  content: "🐾";
  position: absolute;
  top: -0.5em;
  left: 1em;
  background-color: #fef7f7;
  padding: 0 0.5em;
  font-size: 1.5em;
}

/* 講師フィルターボタンのカラー */
.professor-filter-button {
  font-weight: 600;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

/* マロン学長 - サンディブラウン */
.professor-filter-button.professor-maron {
  background-color: #fef3e2;
  color: #8b4513;
  border-color: #8b4513;
}

.professor-filter-button.professor-maron:hover {
  background-color: #8b4513;
  color: white;
  transform: translateY(-2px);
}

.professor-filter-button.professor-maron.active {
  background-color: #8b4513;
  color: white;
  box-shadow: 0 4px 8px rgba(139, 69, 19, 0.3);
}

/* いち教授 - ダークオレンジ */
.professor-filter-button.professor-ichi {
  background-color: #fff4e6;
  color: #ff8c00;
  border-color: #ff8c00;
}

.professor-filter-button.professor-ichi:hover {
  background-color: #ff8c00;
  color: white;
  transform: translateY(-2px);
}

.professor-filter-button.professor-ichi.active {
  background-color: #ff8c00;
  color: white;
  box-shadow: 0 4px 8px rgba(255, 140, 0, 0.3);
}

/* はち助教授 - スチールブルー */
.professor-filter-button.professor-hachi {
  background-color: #e6f2ff;
  color: #4682b4;
  border-color: #4682b4;
}

.professor-filter-button.professor-hachi:hover {
  background-color: #4682b4;
  color: white;
  transform: translateY(-2px);
}

.professor-filter-button.professor-hachi.active {
  background-color: #4682b4;
  color: white;
  box-shadow: 0 4px 8px rgba(70, 130, 180, 0.3);
}

/* ジジ助手 - フォレストグリーン */
.professor-filter-button.professor-jiji {
  background-color: #e8f5e8;
  color: #228b22;
  border-color: #228b22;
}

.professor-filter-button.professor-jiji:hover {
  background-color: #228b22;
  color: white;
  transform: translateY(-2px);
}

.professor-filter-button.professor-jiji.active {
  background-color: #228b22;
  color: white;
  box-shadow: 0 4px 8px rgba(34, 139, 34, 0.3);
}

/* 大福先代学長 - ミディアムパープル */
.professor-filter-button.professor-daifuku {
  background-color: #f3e8ff;
  color: #9370db;
  border-color: #9370db;
}

.professor-filter-button.professor-daifuku:hover {
  background-color: #9370db;
  color: white;
  transform: translateY(-2px);
}

.professor-filter-button.professor-daifuku.active {
  background-color: #9370db;
  color: white;
  box-shadow: 0 4px 8px rgba(147, 112, 219, 0.3);
}

/* 肉球アイコンのアニメーション */
.professor-filter-button i.fa-paw {
  transition: transform 0.3s ease;
}

.professor-filter-button:hover i.fa-paw {
  transform: rotate(15deg) scale(1.2);
}

.professor-filter-button.active i.fa-paw {
  animation: paw-stamp 0.3s ease-out;
}

@keyframes paw-stamp {
  0% {
    transform: scale(1) rotate(0);
  }
  50% {
    transform: scale(1.5) rotate(-10deg);
  }
  100% {
    transform: scale(1) rotate(0);
  }
}

/* ブックマーク・シェア機能のアニメーション */
.animate-bounce {
  animation: bounce 0.5s ease-in-out;
}

.animate-pulse {
  animation: pulse 1s ease-in-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.3s ease-out;
}

.animate-fade-out {
  animation: fadeOut 0.3s ease-in;
}

@keyframes bounce {
  0%,
  20%,
  53%,
  80%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  40%,
  43% {
    transform: translate3d(0, -8px, 0);
  }
  70% {
    transform: translate3d(0, -4px, 0);
  }
  90% {
    transform: translate3d(0, -2px, 0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes slideInRight {
  0% {
    transform: translateX(100%);
    opacity: 0;
  }
  100% {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes fadeOut {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

/* 通知スタイル */
.notification {
  transition: all 0.3s ease;
  font-size: 0.875rem;
  max-width: 300px;
}

/* モーダルスタイル */
#share-modal,
#bookmarks-modal {
  backdrop-filter: blur(4px);
}

#share-modal input:focus,
#bookmarks-modal input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* エピソード完了機能のスタイル */
.episode-complete-button {
  position: relative;
  overflow: hidden;
}

.episode-complete-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s;
}

.episode-complete-button:hover::before {
  left: 100%;
}

.episode-complete-button:disabled {
  cursor: not-allowed;
  transform: none !important;
}

/* 完了時のアニメーション */
.completion-rewards {
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  0% {
    transform: translateY(20px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

/* 講座完了モーダル */
#lecture-completion-modal .animate-bounce {
  animation: modalBounce 0.6s ease-out;
}

@keyframes modalBounce {
  0% {
    transform: scale(0.3);
    opacity: 0;
  }
  50% {
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* 進捗バーのアニメーション改善 */
.progress-fill {
  transition: width 1s ease-in-out;
}

/* 完了バッジのアニメーション */
.completion-badge {
  animation: badgeAppear 0.5s ease-out;
}

@keyframes badgeAppear {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* 肉球スタンプエフェクト */
.paw-stamp-effect {
  position: relative;
}

.paw-stamp-effect::after {
  content: "🐾";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 2rem;
  animation: pawStamp 1s ease-out;
  pointer-events: none;
}

@keyframes pawStamp {
  0% {
    transform: translate(-50%, -50%) scale(0) rotate(-45deg);
    opacity: 0;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.5) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
    opacity: 0;
  }
}

/* 完了講座セクションのスタイル */
.completed-lecture-item {
  border: 1px solid #e5e7eb;
  position: relative;
}

.completed-lecture-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, #fbbf24, #f59e0b);
  border-radius: 0 2px 2px 0;
}

.completed-lecture-item:hover {
  border-color: #d1d5db;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  transform: translateY(-1px);
}

/* さらに読み込むボタンのスタイル */
.load-more-btn {
  position: relative;
  overflow: hidden;
}

.load-more-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transition: left 0.5s;
}

.load-more-btn:hover::before {
  left: 100%;
}

.load-more-btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* 完了講座のアニメーション */
.completed-lecture-item {
  animation: fadeInSlideUp 0.3s ease-out forwards;
  opacity: 0;
  transform: translateY(20px);
}

@keyframes fadeInSlideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 空の状態のスタイル改善 */
#empty-completed {
  background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
  border: 2px dashed #d1d5db;
  border-radius: 12px;
}

/* トロフィーアイコンのアニメーション */
.fa-trophy {
  animation: trophyShine 2s ease-in-out infinite;
}

@keyframes trophyShine {
  0%,
  100% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.3);
  }
}

/* 講師紹介セクション */
.professors-section h2.text-4xl::after {
  background: linear-gradient(to right, #8b5cf6, #ec4899);
}

.professor-card {
  transition: all 0.3s ease;
}

.professor-card:hover {
  transform: translateY(-8px);
  box-shadow:
    0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.professor-image-section {
  position: relative;
  overflow: hidden;
}

.professor-image-section img {
  transition: transform 0.3s ease;
}

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

.professor-info-section {
  position: relative;
}

/* スマホ表示時のヘッダー固定 */
@media (max-width: 767px) {
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
  }
}

/* ===========================================
   アクセシビリティ
   =========================================== */

/* スクリーンリーダー専用テキスト */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* フォーカス表示の改善 */
:focus-visible {
  outline: 2px solid var(--primary, #4a5d7a);
  outline-offset: 2px;
}

/* 減速アニメーション設定を尊重 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ハイコントラストモード対応 */
@media (prefers-contrast: high) {
  .professor-filter-button {
    border-width: 3px;
  }

  .paper-card,
  .lecture-card {
    border: 2px solid currentColor;
  }
}