.seminar-section {
    background: #f4f8fa;
    padding: 70px 20px;
}

.seminar-container {
    max-width: 1120px;
    margin: 0 auto;
}

.seminar-subtitle {
    margin: 0 0 8px;
    color: #00a99d;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .08em;
}

.seminar-title {
    margin: 0 0 40px;
    font-size: 34px;
    font-weight: 800;
    line-height: 1.4;
    color: #10384a;
}

.seminar-category {
    margin: 0 0 24px;
    padding-left: 14px;
    border-left: 6px solid #00a99d;
    color: #10384a;
    font-size: 24px;
    font-weight: 700;
}

.seminar-category-past {
    margin-top: 70px;
}

.seminar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill,minmax(320px,1fr));
    gap: 28px;
}

.seminar-card {
    display: block;
    overflow: hidden;
    background: #fff;
    border-radius: 16px;
    text-decoration: none;
    border: 1px solid #dfecef;
    transition: all .3s ease;
    box-shadow: 0 8px 24px rgba(16,56,74,.08);
}

.seminar-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(16,56,74,.15);
}

.seminar-thumbnail {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.seminar-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: .4s;
}

.seminar-card:hover img {
    transform: scale(1.05);
}

.seminar-content {
    padding: 24px;
}

.seminar-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.seminar-status {
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
}

.seminar-status.active {
    background: #00a99d;
    color: #fff;
}

.seminar-status.end {
    background: #d8e3e7;
    color: #53646c;
}

.seminar-date {
    color: #60717a;
    font-size: 14px;
    font-weight: 700;
}

.seminar-card-title {
    margin: 0 0 14px;
    color: #10384a;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.6;
}

.seminar-description {
    margin: 0 0 20px;
    color: #52636c;
    font-size: 15px;
    line-height: 1.8;
}

.seminar-link {
    color: #00a99d;
    font-size: 14px;
    font-weight: 700;
}

@media (max-width: 768px) {

    .seminar-section {
        padding: 50px 16px;
    }

    .seminar-title {
        font-size: 28px;
    }

    .seminar-category {
        font-size: 20px;
    }

    .seminar-grid {
        grid-template-columns: 1fr;
    }
}