/* =========================
   Expert Section
   ========================= */

.expert {
    background: var(--dark);
    color: white;
    position: relative;
    overflow: hidden;
}

body .expert .expert-title {
    color: white;
}

body .expert .expert-section-subtitle {
    font-size: 22px;
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
    opacity: 0.9;
    line-height: 1.7;
}

body .expert h2 {
    color: white;
    font-size: 52px;
    font-weight: 900;
    margin-bottom: 24px;
    text-align: center;
    letter-spacing: -1px;
}

.expert::before {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(20, 184, 166, 0.15) 0%, transparent 65%);
}

.expert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 64px;
    position: relative;
}

@media (max-width: 1024px) {
    .expert::before {
        left: 0;
    }
}

/* Responsive: 1 column on extra small screens */
@media (max-width: 767px) {
    .expert-grid {
        grid-template-columns: 1fr;
    }
}

/* Responsive: 2 column on small screens */
@media (min-width: 768px) and (max-width: 1024px) {
    .expert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.expert-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s ease;
    position: relative;
}

.expert-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform 0.4s;
}

.expert-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-8px);
}

.expert-item:hover::before {
    transform: scaleX(1);
}

.expert-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
}

.expert-title,
.expert-item h4 {
    font-size: 22px;
    margin-bottom: 16px;
    font-weight: 800;
}

.expert-description,
.expert-item p {
    font-size: 16px;
    opacity: 0.85;
    line-height: 1.7;
}