.materials-hub {
    padding: 0.5rem 0 2rem;
}

.materials-hub-hero {
    margin-bottom: 2rem;
}

.materials-hub-kicker,
.materials-hub-section-kicker {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.78rem;
    font-weight: 700;
    color: #6c757d;
    margin-bottom: 0.4rem;
}

.materials-hub-title {
    font-size: clamp(2rem, 2.2vw + 1rem, 2.8rem);
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.6rem;
}

.materials-hub-subtitle {
    max-width: 720px;
    margin: 0 auto;
    color: #6b7280;
    font-size: 1.02rem;
    line-height: 1.7;
}

.materials-hub-section + .materials-hub-section {
    margin-top: 2.25rem;
}

.materials-hub-section-head {
    margin-bottom: 1rem;
}

.materials-hub-section-title {
    margin: 0;
    font-size: clamp(1.45rem, 1.1vw + 1rem, 1.9rem);
    font-weight: 700;
    color: #1f2937;
}

.materials-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 0.9rem;
    padding: 1.25rem;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.materials-card-accent {
    background: linear-gradient(135deg, #f8fbff 0%, #ffffff 100%);
}

.materials-card-muted {
    background: linear-gradient(135deg, #f8fafc 0%, #f3f6fb 100%);
}

.materials-card-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    align-self: flex-start;
    border-radius: 999px;
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.2;
}

.materials-card-chip-blue {
    background: #e0f2fe;
    color: #0f3a65;
}

.materials-card-chip-teal {
    background: #d9f1f3;
    color: #0f4f55;
}

.materials-card-chip-green {
    background: #dcf4e4;
    color: #1f4c33;
}

.materials-card-chip-orange {
    background: #ffe8d5;
    color: #6f3b00;
}

.materials-card-chip-purple {
    background: #ede9fe;
    color: #3d2f7a;
}

.materials-card-chip-slate {
    background: #e2e8f0;
    color: #334155;
}

.materials-card-body {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.materials-card-title {
    margin: 0;
    font-size: clamp(1.2rem, 0.8vw + 1rem, 1.45rem);
    line-height: 1.35;
    font-weight: 700;
}

.materials-card-title a {
    color: #1f2937;
    text-decoration: none;
}

.materials-card-title a:hover,
.materials-card-title a:focus {
    color: #0d6efd;
    text-decoration: underline;
}

.materials-card-text {
    margin: 0;
    color: #4b5563;
    line-height: 1.7;
}

.materials-card .btn {
    margin-top: auto;
}

@media (max-width: 767.98px) {
    .materials-hub {
        padding-top: 0.25rem;
    }

    .materials-hub-hero {
        margin-bottom: 1.5rem;
    }

    .materials-card {
        padding: 1rem;
    }

    .materials-card-title {
        font-size: 1.15rem;
    }
}