/* ========================================
   EXPERTISE SECTION
======================================== */

.expertise {
    padding: 8rem 4rem;
    max-width: 1400px;
    margin: 0 auto;
    background: var(--bg);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.expertise-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2.5rem;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.expertise-card:hover {
    border-color: var(--text);
    transform: translateY(-8px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.card-number {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 4rem;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.03);
    line-height: 1;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
}

.card-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.card-arrow {
    font-size: 1.5rem;
    color: var(--accent);
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s;
}

.expertise-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}