.course-details-section {
    padding: 80px 0;
    font-family: 'Inter', sans-serif;
    background: #ffffff;
}

.course-details-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 50px;
    padding: 0 20px;
}

/* Left Column */
.course-details-left {
    flex: 1;
}

.course-details-left .section-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
}

.section-title {
    color: #d32f2f;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    margin: 0;
}

.course-details-left .section-header .title-line {
    height: 1px;
    flex-grow: 1;
    background: linear-gradient(to right, #d32f2f 0%, rgba(211, 47, 47, 0) 100%);
    max-width: 150px;
}

.pricing-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 40px;
}

.pricing-header .title-line {
    height: 2px;
    width: 30px;
    background: #d32f2f;
}

.pricing-header .section-title {
    color: #90a4ae;
    letter-spacing: 2px;
}

/* Detail Items */
.details-list {
    display: flex;
    flex-direction: column;
}

.detail-item {
    display: flex;
    gap: 25px;
    padding: 30px 0;
    border-bottom: 1px solid #edf2f7;
}

.detail-item:first-child {
    border-top: 1px solid #edf2f7;
}

.detail-icon {
    width: 55px;
    height: 55px;
    background: #eef4fb;
    color: #1a65c2;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.detail-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.detail-label {
    color: #8fa0b3;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.detail-value {
    color: #213547;
    font-size: 22px;
    font-weight: 800;
    margin: 0;
}

.detail-subtext {
    color: #55606d;
    font-size: 16px;
    margin: 0;
}

/* Info Box */
.course-info-box {
    margin-top: 40px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 30px;
}

.info-text {
    color: #55606d;
    font-size: 15px;
    line-height: 1.6;
    margin: 0 0 25px 0;
}

.info-text i {
    color: #8fa0b3;
    margin-right: 8px;
}

.early-bird-promo {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.promo-col {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.early-bird-promo .promo-text,
.early-bird-promo .promo-date,
.early-bird-promo .promo-desc {
    font-size: 15px;
    line-height: 1.5;
    color: #d32f2f;
}

.early-bird-promo .promo-text {
    font-weight: 700;
}

.early-bird-promo .promo-date {
    font-weight: 900;
}

.early-bird-promo .promo-desc {
    font-weight: 700;
}

/* Right Column (Pricing) */
.course-pricing-right {
    width: 420px;
    background: #113866; /* Elegant dark blue */
    border-radius: 16px;
    padding: 40px;
    color: #ffffff;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.pricing-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 30px 25px;
}

.pricing-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #a0aec0;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}

.pricing-badge .dot {
    width: 8px;
    height: 8px;
    background: #4a8ddf;
    border-radius: 50%;
}

.price-value {
    font-size: 56px;
    font-weight: 900;
    margin: 0 0 15px 0;
    display: flex;
    align-items: flex-start;
    line-height: 1;
}

.price-value sup {
    font-size: 28px;
    margin-top: 8px;
    margin-right: 5px;
    font-weight: 700;
}

.regular-price {
    color: #8fa0b3;
    font-size: 15px;
    margin: 0 0 20px 0;
}

.save-pill {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    color: #a0c3f0;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

/* Button */
.btn-register {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    background: #d32f2f;
    color: #ffffff;
    text-decoration: none;
    padding: 20px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    transition: background 0.3s;
    width: 100%;
    box-sizing: border-box;
}

.btn-register:hover {
    background: #b71c1c;
    color: #ffffff;
}

.pricing-footer {
    margin-top: 25px;
    text-align: center;
    font-size: 14px;
    color: #8fa0b3;
    line-height: 1.6;
}

.pricing-footer p {
    margin: 5px 0;
}

.pricing-footer a {
    color: #4a8ddf;
    text-decoration: underline;
}

/* Responsiveness */
@media (max-width: 992px) {
    .course-details-container {
        flex-direction: column;
    }
    
    .course-pricing-right {
        width: 100%;
        padding: 40px 30px;
    }
}

@media (max-width: 768px) {
    .course-details-section {
        padding: 40px 0;
    }

    .course-details-container {
        gap: 30px;
    }

    .early-bird-promo {
        flex-wrap: wrap;
        gap: 8px;
    }

    .early-bird-promo .promo-text,
    .early-bird-promo .promo-date,
    .early-bird-promo .promo-desc {
        font-size: 12px;
    }
    
    .course-info-box {
        padding: 20px;
    }
    
    .detail-item {
        flex-direction: column;
        gap: 15px;
    }

    .info-text {
        font-size: 13px;
    }
}