.course-hero {
    margin-bottom: 28px;
}

.course-folder-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.course-folder,
.course-resource {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 18px;
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    background: #f7fbf9;
    border: 1px solid #d5e6df;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.course-folder:hover,
.course-resource:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(20, 70, 55, 0.08);
}

.course-folder-icon {
    font-size: 2rem;
}

.course-folder em,
.course-resource span {
    font-style: normal;
    color: #4f6b63;
    font-size: 0.9rem;
}

.course-resource-list {
    display: grid;
    gap: 12px;
}

.course-player-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.course-iframe {
    width: 100%;
    min-height: calc(100vh - 140px);
    border: 1px solid #d5e6df;
    border-radius: 12px;
    background: #07110e;
}

.course-admin-level {
    margin-top: 28px;
    padding-top: 12px;
    border-top: 1px solid #d5e6df;
}

.course-admin-form {
    margin-bottom: 16px;
}

.course-admin-form select {
    width: 100%;
    border: 1px solid #bed3cc;
    border-radius: 10px;
    padding: 12px;
}