/**
 * Enhanced Animations for My Film School
 * アニメーション強化スタイル
 */

/* ========== Utility Classes ========== */

/* スムーズなスクロール */
html {
  scroll-behavior: smooth;
}

/* すべてのトランジションをスムーズに */
* {
  transition-timing-function: cubic-bezier(0.4, 0.0, 0.2, 1);
}

/* ========== Loading Animations ========== */

/* スピナー */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(102, 126, 234, 0.1);
  border-top-color: #667eea;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner-small {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-large {
  width: 60px;
  height: 60px;
  border-width: 4px;
}

/* パルスアニメーション */
.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: .5;
  }
}

/* スケルトンローディング */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.dark .skeleton {
  background: linear-gradient(90deg, #374151 25%, #4b5563 50%, #374151 75%);
  background-size: 200% 100%;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ========== Page Transition Animations ========== */

/* フェードイン */
.fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

.fade-in-slow {
  animation: fadeIn 1s ease-out forwards;
}

.fade-in-fast {
  animation: fadeIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* スライドイン（上から） */
.slide-in-top {
  animation: slideInTop 0.5s ease-out forwards;
}

@keyframes slideInTop {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* スライドイン（下から） */
.slide-in-bottom {
  animation: slideInBottom 0.5s ease-out forwards;
}

@keyframes slideInBottom {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* スライドイン（左から） */
.slide-in-left {
  animation: slideInLeft 0.5s ease-out forwards;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* スライドイン（右から） */
.slide-in-right {
  animation: slideInRight 0.5s ease-out forwards;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* スケールイン */
.scale-in {
  animation: scaleIn 0.4s ease-out forwards;
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ========== Hover Effects ========== */

/* リフトエフェクト */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.dark .hover-lift:hover {
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.4);
}

/* グローエフェクト */
.hover-glow {
  transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(102, 126, 234, 0.4);
}

/* スケールエフェクト */
.hover-scale {
  transition: transform 0.3s ease;
}

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

/* バウンスエフェクト */
.hover-bounce {
  transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.hover-bounce:hover {
  transform: scale(1.1);
}

/* ========== Interactive Elements ========== */

/* ボタンのリップルエフェクト */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
}

/* カードフリップ */
.card-flip {
  perspective: 1000px;
}

.card-flip-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

.card-flip:hover .card-flip-inner {
  transform: rotateY(180deg);
}

.card-flip-front,
.card-flip-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
}

.card-flip-back {
  transform: rotateY(180deg);
}

/* ========== Stagger Animations ========== */

/* 段階的表示（リスト用） */
.stagger-item {
  opacity: 0;
  animation: fadeInStagger 0.5s ease-out forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.10s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.20s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.30s; }
.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.stagger-item:nth-child(8) { animation-delay: 0.40s; }
.stagger-item:nth-child(9) { animation-delay: 0.45s; }
.stagger-item:nth-child(10) { animation-delay: 0.50s; }

@keyframes fadeInStagger {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== Scroll Animations ========== */

/* スクロールトリガーアニメーション */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* スクロールプログレスバー */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  transform-origin: 0 0;
  z-index: 9999;
  transition: transform 0.1s ease;
}

/* ========== Special Effects ========== */

/* グラデーション背景のアニメーション */
.gradient-animate {
  background: linear-gradient(270deg, #667eea, #764ba2, #f093fb, #4facfe);
  background-size: 800% 800%;
  animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* タイプライター効果 */
.typewriter {
  overflow: hidden;
  border-right: 2px solid #667eea;
  white-space: nowrap;
  animation: typing 3s steps(40, end), blink 0.75s step-end infinite;
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  from, to { border-color: transparent; }
  50% { border-color: #667eea; }
}

/* フローティングアニメーション */
.float {
  animation: float 3s ease-in-out infinite;
}

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

/* ========== Micro Interactions ========== */

/* クリックフィードバック */
.click-feedback:active {
  transform: scale(0.95);
}

/* フォーカスリング */
.focus-ring:focus {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

/* ホバー時のアンダーライン */
.hover-underline {
  position: relative;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  transition: width 0.3s ease;
}

.hover-underline:hover::after {
  width: 100%;
}

/* ========== Performance Optimizations ========== */

/* GPUアクセラレーションを利用 */
.gpu-accelerated {
  will-change: transform;
  transform: translateZ(0);
}

/* アニメーションを無効にする設定（ユーザー設定） */
@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;
  }
}