.expertise-section {
    background: #eef2f8;
}

.expertise-heading {
    max-width: 860px;
    margin-bottom: 28px;
}

.expertise-heading .section-title {
    margin-bottom: 14px;
}

.expertise-heading p {
    margin: 0;
    color: var(--muted);
}

.expertise-grid,
.norms-grid,
.instrument-grid,
.evidence-grid {
    display: grid;
    gap: 16px;
}

.expertise-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.norms-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.instrument-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.evidence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.expertise-card,
.norm-card,
.instrument-card,
.evidence-card {
    min-width: 0;
    padding: 22px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.expertise-card h3,
.norm-card h3,
.instrument-card h3,
.evidence-card h3 {
    margin: 0 0 9px;
    line-height: 1.3;
    font-size: 1rem;
}

.expertise-card p,
.norm-card p,
.instrument-card p,
.evidence-card p {
    margin: 0;
    color: var(--muted);
    font-size: .94rem;
}

.norm-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.norm-code {
    align-self: flex-start;
    display: inline-flex;
    padding: 5px 9px;
    border-radius: 999px;
    background: #e8eefc;
    color: #173d9d;
    font-size: .74rem;
    font-weight: 900;
    line-height: 1;
    letter-spacing: .02em;
}

.norm-card a {
    color: inherit;
}

.norm-card a:hover h3,
.evidence-card a:hover h3 {
    color: var(--accent);
}

.method-flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    counter-reset: method;
}

.method-step {
    position: relative;
    padding: 52px 18px 18px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

.method-step::before {
    counter-increment: method;
    content: counter(method, decimal-leading-zero);
    position: absolute;
    top: 16px;
    left: 18px;
    color: var(--accent);
    font-weight: 900;
    font-size: .78rem;
    letter-spacing: .08em;
}

.method-step strong {
    display: block;
    margin-bottom: 7px;
    line-height: 1.3;
}

.method-step span {
    color: var(--muted);
    font-size: .92rem;
}

.expertise-note {
    margin-top: 18px;
    padding: 18px 20px;
    border-left: 4px solid var(--cyan);
    background: #eefbfc;
    color: #17444a;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.expertise-note strong {
    color: #082d31;
}

.expertise-profile {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr);
    gap: 20px;
    align-items: stretch;
}

.profile-proof {
    padding: 24px;
    background: var(--deep);
    color: #fff;
    border-radius: var(--radius);
}

.profile-proof h3 {
    margin: 0 0 14px;
    font-size: 1.05rem;
}

.profile-proof ul {
    margin: 0;
    padding-left: 20px;
}

.profile-proof li + li {
    margin-top: 8px;
}

.evidence-card a {
    display: block;
    color: inherit;
}

.evidence-label {
    display: block;
    margin-bottom: 8px;
    color: var(--accent);
    font-size: .76rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .06em;
}

@media (max-width: 980px) {
    .norms-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .instrument-grid,
    .method-flow {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 700px) {
    .expertise-grid,
    .norms-grid,
    .instrument-grid,
    .evidence-grid,
    .method-flow,
    .expertise-profile {
        grid-template-columns: 1fr;
    }

    .expertise-card,
    .norm-card,
    .instrument-card,
    .evidence-card {
        padding: 18px;
    }
}