/* ==========================================================================
   LIVE配信研究所 - フッターコンポーネントCSS
   フッター、ユーティリティクラス
   ========================================================================== */

/* ==========================================================================
   フッター（.footer）
   ========================================================================== */

.footer {
    background: rgba(44, 62, 80, 0.9) !important;
    color: #FFFFFF !important;
    padding: 3rem 2rem 1rem !important;
    backdrop-filter: blur(10px) !important;
    border-radius: 25px 25px 0 0 !important;
    margin-top: 2rem !important;
}

.footer-content {
    max-width: 1200px !important;
    margin: 0 auto !important;
    display: grid !important;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)) !important;
    gap: 2rem !important;
}

.footer-section {
    margin-bottom: 2rem !important;
}

.footer-section h3 {
    font-size: 1.5rem !important;
    margin-bottom: 0.5rem !important;
    background: linear-gradient(135deg, #FF6B6B 0%, #4ECDC4 50%, #FFE66D 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    font-weight: 700 !important;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8) !important;
    line-height: 1.6 !important;
    margin-bottom: 1rem !important;
}

.footer-section ul {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.footer-section li {
    margin-bottom: 0.5rem !important;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8) !important;
    text-decoration: none !important;
    transition: color 0.3s ease !important;
}

.footer-section a:hover {
    color: #FF6B6B !important;
}

.footer-bottom {
    text-align: center !important;
    padding-top: 2rem !important;
    margin-top: 2rem !important;
    border-top: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.footer-bottom p {
    margin: 0 !important;
    color: rgba(255, 255, 255, 0.7) !important;
}

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

.text-center { 
    text-align: center !important; 
}

.text-left { 
    text-align: left !important; 
}

.text-right { 
    text-align: right !important; 
}

.text-gradient {
    background: linear-gradient(135deg, #FF6B6B 0%, #4ECDC4 50%, #FFE66D 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

.btn-primary {
    background: linear-gradient(45deg, #4ECDC4, #FF6B6B) !important;
    color: #FFFFFF !important;
    padding: 0.8rem 2rem !important;
    border-radius: 25px !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
    border: none !important;
    cursor: pointer !important;
    display: inline-block !important;
}

.btn-primary:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3) !important;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.8) !important;
    color: #2C3E50 !important;
    border: 2px solid rgba(255, 107, 107, 0.2) !important;
    padding: 0.8rem 2rem !important;
    border-radius: 25px !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
    cursor: pointer !important;
    display: inline-block !important;
}

.btn-secondary:hover {
    background: #4ECDC4 !important;
    color: #FFFFFF !important;
    border-color: #4ECDC4 !important;
    transform: translateY(-2px) !important;
}

/* 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 0.8s ease-out;
}

.fade-in {
    opacity: 0;
    animation: fadeIn 0.5s ease-out forwards;
}

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

.fade-out {
    opacity: 1;
    animation: fadeOut 0.3s ease-out forwards;
}

@keyframes fadeOut {
    to {
        opacity: 0;
    }
}

/* ==========================================================================
   モバイル専用フッター調整
   ========================================================================== */

@media (max-width: 768px) {
    .footer {
        padding: 2rem 1rem 1rem !important;
        margin-top: 1rem !important;
    }
    
    .footer-content {
        grid-template-columns: 1fr !important;
        text-align: center !important;
        gap: 1.5rem !important;
    }
    
    .footer-section {
        margin-bottom: 1.5rem !important;
    }
    
    .footer-section h3 {
        font-size: 1.3rem !important;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 1.5rem 0.5rem 1rem !important;
    }
    
    .footer-section h3 {
        font-size: 1.2rem !important;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.7rem 1.5rem !important;
        font-size: 0.9rem !important;
    }
}