.dkl-course-wrap {
    --dkl-blue: #143a5a;
    --dkl-gold: #d6a23a;
    --dkl-paper: #fbf7ef;
    --dkl-line: #d8c7a6;
    background: #f6f0e5;
    border: 1px solid var(--dkl-line);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 12px 34px rgba(20, 58, 90, 0.12);
    margin: 1.5rem 0;
}

.dkl-course-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    padding: 1.25rem 1.35rem;
    color: #fff;
    background: linear-gradient(135deg, #102b43, #244d70 65%, #d6a23a);
}

.dkl-course-header h2 {
    margin: 0.15rem 0 0.25rem;
    color: #fff;
    font-family: Georgia, serif;
    font-size: clamp(1.5rem, 3vw, 2.3rem);
}

.dkl-course-header p {
    margin: 0;
    color: #ffdf84;
}

.dkl-kicker {
    color: #fff !important;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    opacity: 0.9;
}

.dkl-open-button {
    flex: 0 0 auto;
    display: inline-block;
    color: var(--dkl-blue);
    background: #fff;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 999px;
    padding: 0.65rem 1rem;
    font-weight: 700;
    text-decoration: none;
}

.dkl-open-button:hover,
.dkl-open-button:focus {
    color: #102b43;
    background: #fff8e8;
    text-decoration: none;
}

.dkl-course-frame {
    display: block;
    width: 100%;
    min-height: 520px;
    border: 0;
    background: #fff;
}

.dkl-note {
    margin: 0;
    padding: 0.7rem 1rem 0.85rem;
    font-size: 0.9rem;
    color: #555;
    background: #fffdf8;
    border-top: 1px solid var(--dkl-line);
}

@media (max-width: 720px) {
    .dkl-course-header {
        display: block;
    }

    .dkl-open-button {
        margin-top: 1rem;
    }

    .dkl-course-frame {
        min-height: 680px;
    }
}