/* ===================================
   IT Tools Certification Section
   =================================== */

.it-tools-section {
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    min-height: 100vh;
    padding: 80px 0;
    color: #fff;
    z-index: 14;
}

.it-tools-content {
    text-align: center;
}

.it-tools-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.certification-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto 4rem;
}

.certification-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.certification-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.1) 0%, rgba(68, 163, 170, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.certification-item:hover::before {
    opacity: 1;
}

.certification-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(78, 205, 196, 0.2);
    border-color: rgba(78, 205, 196, 0.3);
}

.certification-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.certification-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #4ecdc4;
    margin-bottom: 1rem;
}

.certification-item p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.it-tools-cta {
    text-align: center;
}

.cta-text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.it-tools-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #4ecdc4 0%, #44a3aa 100%);
    color: #fff;
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(78, 205, 196, 0.3);
}

.it-tools-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(78, 205, 196, 0.4);
    color: #fff;
}

.it-tools-button .button-arrow {
    transition: transform 0.3s ease;
}

.it-tools-button:hover .button-arrow {
    transform: translateX(5px);
}

/* モバイル対応 */
@media (max-width: 768px) {
    .it-tools-section {
        padding: 60px 0;
    }
    
    .certification-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .certification-item {
        padding: 2rem 1.5rem;
    }
    
    .certification-icon {
        font-size: 2.5rem;
    }
    
    .certification-item h3 {
        font-size: 1.2rem;
    }
    
    .it-tools-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* タブレット対応 */
@media (min-width: 769px) and (max-width: 1024px) {
    .certification-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}