/* ========================================
   アニメーション & エフェクト
   ======================================== */

/* パーティクル背景エフェクト */
@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); }
    25% { transform: translateY(-20px) translateX(10px); }
    50% { transform: translateY(-10px) translateX(-10px); }
    75% { transform: translateY(-30px) translateX(5px); }
}

/* ネオングロー効果 */
@keyframes neonPulse {
    0%, 100% {
        box-shadow: 0 0 5px currentColor,
                    0 0 10px currentColor,
                    0 0 20px currentColor;
    }
    50% {
        box-shadow: 0 0 10px currentColor,
                    0 0 20px currentColor,
                    0 0 40px currentColor,
                    0 0 60px currentColor;
    }
}

/* グラデーション回転 */
@keyframes gradientRotate {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* スケールアップ */
@keyframes scaleUp {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* バウンス */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* シェイク */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* 回転 */
@keyframes rotate360 {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* フェードインアップ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* フェードインダウン */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* スライドインレフト */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* スライドインライト */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ズームイン */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* リップル効果 */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* ローディングドット */
@keyframes dotPulse {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

/* グローパルス */
@keyframes glowPulse {
    0%, 100% {
        filter: drop-shadow(0 0 5px currentColor);
    }
    50% {
        filter: drop-shadow(0 0 20px currentColor)
                drop-shadow(0 0 30px currentColor);
    }
}

/* ========================================
   ユーティリティクラス
   ======================================== */

/* アニメーション適用 */
.animate-fade-in { animation: fadeIn 0.5s ease-in; }
.animate-fade-in-up { animation: fadeInUp 0.5s ease-out; }
.animate-fade-in-down { animation: fadeInDown 0.5s ease-out; }
.animate-slide-in-left { animation: slideInLeft 0.5s ease-out; }
.animate-slide-in-right { animation: slideInRight 0.5s ease-out; }
.animate-zoom-in { animation: zoomIn 0.5s ease-out; }
.animate-scale-up { animation: scaleUp 0.5s ease-out; }
.animate-bounce { animation: bounce 1s ease-in-out infinite; }
.animate-shake { animation: shake 0.5s ease-in-out; }
.animate-rotate { animation: rotate360 2s linear infinite; }
.animate-glow-pulse { animation: glowPulse 2s ease-in-out infinite; }
.animate-neon-pulse { animation: neonPulse 2s ease-in-out infinite; }

/* 遅延 */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* ホバーエフェクト */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow {
    transition: box-shadow 0.3s ease, filter 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px currentColor;
    filter: brightness(1.2);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

/* パルスエフェクト */
.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ========================================
   特殊エフェクト
   ======================================== */

/* ネオンボーダー */
.neon-border {
    position: relative;
    border: 2px solid transparent;
}

.neon-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg,
        var(--neon-pink),
        var(--neon-cyan),
        var(--neon-purple),
        var(--neon-green)
    );
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
    animation: gradientRotate 3s linear infinite;
    background-size: 400% 400%;
}

.neon-border:hover::before {
    opacity: 1;
}

/* グリッチエフェクト */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.glitch:hover::before {
    animation: glitch-1 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
    color: var(--neon-cyan);
    z-index: -1;
}

.glitch:hover::after {
    animation: glitch-2 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) reverse both infinite;
    color: var(--neon-pink);
    z-index: -2;
}

@keyframes glitch-1 {
    0% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
    100% { transform: translate(0); }
}

@keyframes glitch-2 {
    0% { transform: translate(0); }
    20% { transform: translate(2px, -2px); }
    40% { transform: translate(2px, 2px); }
    60% { transform: translate(-2px, -2px); }
    80% { transform: translate(-2px, 2px); }
    100% { transform: translate(0); }
}

/* スキャンライン */
.scanline {
    position: relative;
    overflow: hidden;
}

.scanline::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg,
        transparent,
        var(--neon-cyan),
        transparent
    );
    animation: scan 3s linear infinite;
}

@keyframes scan {
    0% { transform: translateY(0); }
    100% { transform: translateY(500px); }
}

/* 粒子エフェクト */
.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--neon-cyan);
    border-radius: 50%;
    animation: float 3s ease-in-out infinite;
    opacity: 0.6;
}

/* ========================================
   ローディングアニメーション
   ======================================== */

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--neon-pink);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-dots {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--neon-pink);
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

/* プログレスバー */
.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background: linear-gradient(90deg,
        var(--neon-pink),
        var(--neon-cyan)
    );
    animation: progress 1.5s ease-in-out infinite;
}

@keyframes progress {
    0% { left: -30%; }
    100% { left: 100%; }
}

/* ========================================
   トランジション
   ======================================== */

.transition-all { transition: all 0.3s ease; }
.transition-fast { transition: all 0.15s ease; }
.transition-slow { transition: all 0.5s ease; }

/* イージング */
.ease-bounce { transition-timing-function: cubic-bezier(0.68, -0.55, 0.265, 1.55); }
.ease-smooth { transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); }