/* Research Fields Page Specific Styles */

/* Research Fields Section */
.research-fields {
    padding: 140px 0 100px;
    background: linear-gradient(180deg, #ffffff 0%, #f2f6fb 100%);
    position: relative;
    min-height: calc(100vh - 200px);
}

.research-fields .section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 60px;
    flex-wrap: wrap;
    gap: 30px;
}

.research-fields .section-title {
    position: relative;
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.research-fields .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.research-fields .section-subtitle {
    font-size: 1.1rem;
    color: #555;
    max-width: 700px;
    margin-top: 15px;
    line-height: 1.8;
}

.research-highlight {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 50px;
    align-items: center;
    margin-bottom: 60px;
}

.research-visual {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    min-height: 450px;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.research-visual {
    position: relative;
}

.research-visual::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    border-radius: 23px;
    opacity: 0;
    z-index: -1;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: blur(15px);
}

.research-visual:hover::before {
    opacity: 0.6;
    filter: blur(20px);
}

.research-visual:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 30px 60px rgba(30, 91, 168, 0.3), 0 0 40px rgba(231, 76, 60, 0.2);
}

.research-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

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

.stat-card {
    position: absolute;
    left: 30px;
    top: 30px;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 24px 28px;
    border-radius: 18px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    max-width: 260px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    z-index: 2;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.2);
}

.stat-card.secondary {
    left: auto;
    right: 30px;
    top: auto;
    bottom: 30px;
    background: linear-gradient(135deg, rgba(30, 91, 168, 0.95), rgba(41, 128, 185, 0.95));
    color: var(--white);
}

.stat-card span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 8px;
}

.stat-card.secondary span {
    color: rgba(255, 255, 255, 0.9);
}

.stat-card h3 {
    font-size: 1.6rem;
    margin: 12px 0;
    color: inherit;
    font-weight: 700;
}

.stat-card p {
    margin: 0;
    font-size: 0.95rem;
    color: inherit;
    line-height: 1.6;
    opacity: 0.9;
}

.research-text {
    padding: 20px 0;
}

.research-text p {
    color: #555;
    margin-bottom: 30px;
    line-height: 1.9;
    font-size: 1.05rem;
}

.research-pillars {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.research-pillars li {
    background: var(--white);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08);
    border-left: 6px solid var(--primary);
    transition: var(--transition);
}

.research-pillars li {
    position: relative;
    overflow: hidden;
}

.research-pillars li::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(30, 91, 168, 0.1), transparent);
    transition: all 0.6s ease;
}

.research-pillars li:hover::before {
    left: 100%;
}

.research-pillars li:hover {
    transform: translateX(8px) scale(1.02);
    box-shadow: 0 20px 45px rgba(30, 91, 168, 0.2), 0 0 30px rgba(52, 152, 219, 0.15);
    border-left-width: 8px;
}

.research-pillars h4 {
    margin-bottom: 12px;
    font-size: 1.3rem;
    color: var(--primary);
    font-weight: 600;
}

.research-pillars p {
    margin: 0;
    color: var(--gray);
    line-height: 1.8;
    font-size: 0.98rem;
}

.research-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    padding: 40px;
    background-color: var(--white);
    border-radius: 20px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08);
    justify-content: center;
}

.research-tags span {
    background: rgba(30, 91, 168, 0.08);
    color: var(--primary);
    padding: 12px 20px;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid rgba(30, 91, 168, 0.15);
    transition: var(--transition);
    cursor: default;
}

.research-tags span {
    position: relative;
    overflow: hidden;
}

.research-tags span::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(30, 91, 168, 0.3), transparent);
    transform: translate(-50%, -50%);
    transition: all 0.4s ease;
}

.research-tags span:hover::before {
    width: 200px;
    height: 200px;
}

.research-tags span:hover {
    background: rgba(30, 91, 168, 0.2);
    border-color: var(--primary);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(30, 91, 168, 0.3), 0 0 15px rgba(52, 152, 219, 0.2);
    z-index: 1;
    position: relative;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .research-highlight {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .research-visual {
        min-height: 400px;
    }
    
    .research-fields .section-header {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .research-fields {
        padding: 120px 0 80px;
    }
    
    .research-fields .section-title {
        font-size: 2.2rem;
    }
    
    .research-fields .section-subtitle {
        font-size: 1rem;
    }
    
    .research-visual {
        min-height: 350px;
    }
    
    .stat-card {
        left: 20px;
        top: 20px;
        padding: 20px 24px;
        max-width: 220px;
    }
    
    .stat-card.secondary {
        right: 20px;
        bottom: 20px;
    }
    
    .stat-card h3 {
        font-size: 1.4rem;
    }
    
    .research-pillars li {
        padding: 22px;
    }
    
    .research-pillars h4 {
        font-size: 1.15rem;
    }
    
    .research-tags {
        padding: 30px 20px;
        gap: 12px;
    }
    
    .research-tags span {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .research-fields .section-title {
        font-size: 1.8rem;
    }
    
    .stat-card {
        max-width: 180px;
        padding: 16px 20px;
    }
    
    .stat-card span {
        font-size: 0.75rem;
    }
    
    .stat-card h3 {
        font-size: 1.2rem;
    }
    
    .stat-card p {
        font-size: 0.85rem;
    }
    
    .research-pillars li {
        padding: 18px;
    }
    
    .research-tags {
        padding: 25px 15px;
    }
    
    .research-tags span {
        padding: 8px 14px;
        font-size: 0.85rem;
    }
}