/* ============================================================================
   Expertise & Octogone Section
   ============================================================================ */

.expertise {
    padding: 8rem 1.5rem;
    background-color: var(--background);
    position: relative;
}

@media (min-width: 768px) {
    .expertise { padding: 10rem 1.5rem; }
}

.expertise-header {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 5rem;
}

@media (min-width: 768px) {
    .expertise-header { grid-template-columns: 1fr 1fr; }
}

.octogone-title {
    font-size: clamp(2rem, 5vw, 5rem);
    line-height: 0.9;
}

.expertise-subtitle {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.expertise-description {
    max-width: 45ch;
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.8;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0;
    }
}

@media (min-width: 1100px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0;
    }
}

.service-card {
    border: 1px solid var(--border);
    padding: 2rem;
    background-color: rgba(var(--foreground-rgb), 0.02);
    transition: all 0.3s ease;
    color: var(--foreground);
}

.service-card:hover {
    background-color: var(--foreground);
    color: var(--background);
    border-color: var(--foreground);
}

.service-number {
    font-family: var(--font-display);
    font-size: 1rem;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: block;
}

.service-card h3 {
    font-size: 1.875rem;
    margin-bottom: 1.5rem;
    line-height: 1;
}

.service-card p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    opacity: 0.85;
}

.service-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-bullets li {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    padding: 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-left: 1.5rem;
    position: relative;
}

.service-bullets li::before {
    content: '→';
    position: absolute;
    left: 0;
    opacity: 0.4;
}