/**
 * Digital Product Component
 * デジタル教材セクションのスタイル
 */

/* Section Styles */
.section--digital-product {
    background: linear-gradient(135deg, #f8f9ff 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}

.section--digital-product::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* Main Container */
.digital-product {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    align-items: start;
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(79, 70, 229, 0.1);
}

/* Visual Column */
.digital-product__visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    position: sticky;
    top: 100px;
}

.digital-product__icon {
    font-size: 120px;
    line-height: 1;
    filter: drop-shadow(0 4px 12px rgba(79, 70, 229, 0.15));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.digital-product__badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #6366f1 100%);
    color: white;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

/* Content Column */
.digital-product__content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.digital-product__title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text-primary);
    margin: 0;
}

.digital-product__subtitle {
    display: block;
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: 8px;
}

.digital-product__summary {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.digital-product__summary p {
    margin: 0;
}

/* Sections */
.digital-product__section {
    padding: 20px;
    background: #f8f9ff;
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
}

/* Benefits Section */
.digital-product__benefits {
    padding: 32px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: 16px;
    border: 2px solid #0ea5e9;
    position: relative;
    overflow: hidden;
}

.digital-product__benefits::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin: 24px 0;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.2);
}

.benefit-item__icon {
    font-size: 32px;
    line-height: 1;
    flex-shrink: 0;
}

.benefit-item__content {
    flex: 1;
}

.benefit-item__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.benefit-item__desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.5;
}

.benefits-summary {
    margin-top: 24px;
    padding: 20px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.benefits-summary__text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    margin: 0;
}

.benefits-summary__text strong {
    color: #0ea5e9;
    font-size: 18px;
}

/* Differentiation Section */
.digital-product__differentiation {
    padding: 32px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: 16px;
    border: 2px solid #f59e0b;
    position: relative;
    overflow: hidden;
}

.digital-product__differentiation::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.differentiation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.differentiation-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.differentiation-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.2);
}

.differentiation-item__icon {
    font-size: 32px;
    line-height: 1;
    flex-shrink: 0;
}

.differentiation-item__content {
    flex: 1;
}

.differentiation-item__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.differentiation-item__desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.5;
}

.differentiation-comparison {
    margin-top: 24px;
    padding: 24px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1px;
    background: rgba(245, 158, 11, 0.2);
    border-radius: 8px;
    overflow: hidden;
}

.comparison-header {
    display: contents;
}

.comparison-row {
    display: contents;
}

.comparison-cell {
    padding: 16px 12px;
    background: white;
    font-size: 14px;
    line-height: 1.4;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.comparison-cell--empty {
    background: transparent;
}

.comparison-cell--label {
    font-weight: 600;
    color: var(--color-text-primary);
    text-align: left;
    justify-content: flex-start;
}

.comparison-cell--highlight {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    font-weight: 600;
}

.comparison-header .comparison-cell {
    font-weight: 700;
    font-size: 15px;
}

.comparison-header .comparison-cell--highlight {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

/* Sample Content Section */
.digital-product__sample-content {
    padding: 32px;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-radius: 16px;
    border: 2px solid #22c55e;
    position: relative;
    overflow: hidden;
}

.digital-product__sample-content::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.sample-content-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sample-content-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.15);
}

.sample-content-card__header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
}

.sample-content-card__icon {
    font-size: 48px;
    line-height: 1;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px rgba(34, 197, 94, 0.2));
}

.sample-content-card__meta {
    flex: 1;
}

.sample-content-card__title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.sample-content-card__subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin: 0 0 16px 0;
    line-height: 1.5;
}

.sample-content-card__details {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.sample-content-card__reading-time,
.sample-content-card__type {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.sample-content-card__type {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
    border-color: rgba(59, 130, 246, 0.2);
}

.sample-content-card__content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sample-content-card__description {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin: 0;
}

.sample-content-card__highlights {
    padding: 20px;
    background: #f8fffe;
    border-radius: 12px;
    border-left: 4px solid #22c55e;
}

.sample-content-card__highlights-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 12px 0;
}

.sample-content-card__highlights-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sample-content-card__highlights-list li {
    position: relative;
    padding-left: 24px;
    font-size: 15px;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.sample-content-card__highlights-list li::before {
    content: '✨';
    position: absolute;
    left: 0;
    font-size: 16px;
}

.sample-content-card__cta {
    display: flex;
    justify-content: center;
    margin-top: 8px;
}

.sample-content-card__button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 2px solid #22c55e;
    color: #22c55e;
    background: white;
}

.sample-content-card__button:hover {
    background: #22c55e;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
}

/* Article-Textbook Relationship Section */
.digital-product__relationship {
    padding: 32px;
    background: linear-gradient(135deg, #fef7ff 0%, #f3e8ff 100%);
    border-radius: 16px;
    border: 2px solid #a855f7;
    position: relative;
    overflow: hidden;
}

.digital-product__relationship::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.relationship-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 24px;
    align-items: center;
    margin: 24px 0;
}

.relationship-item {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.relationship-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(168, 85, 247, 0.15);
}

.relationship-item--article {
    border-left: 4px solid #22c55e;
}

.relationship-item--textbook {
    border-left: 4px solid #a855f7;
}

.relationship-item__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.relationship-item__icon {
    font-size: 32px;
    line-height: 1;
}

.relationship-item__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    line-height: 1.3;
}

.relationship-item__description {
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin: 0 0 16px 0;
}

.relationship-item__features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.relationship-item__features li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.relationship-item--article .relationship-item__features li::before {
    content: '📝';
    position: absolute;
    left: 0;
    font-size: 14px;
}

.relationship-item--textbook .relationship-item__features li::before {
    content: '📚';
    position: absolute;
    left: 0;
    font-size: 14px;
}

.relationship-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #a855f7;
    font-weight: 600;
}

.relationship-arrow svg {
    color: #a855f7;
}

.relationship-arrow__text {
    font-size: 14px;
    font-weight: 700;
    color: #a855f7;
    background: white;
    padding: 4px 12px;
    border-radius: 12px;
    border: 2px solid #a855f7;
    white-space: nowrap;
}

.relationship-value {
    margin-top: 32px;
    padding: 24px;
    background: rgba(168, 85, 247, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(168, 85, 247, 0.2);
}

.relationship-value__title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 20px 0;
    text-align: center;
}

.relationship-value__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.relationship-value__item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.15);
}

.relationship-value__item-icon {
    font-size: 24px;
    line-height: 1;
    flex-shrink: 0;
}

.relationship-value__item-content {
    flex: 1;
}

.relationship-value__item-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 6px 0;
    line-height: 1.3;
}

.relationship-value__item-desc {
    font-size: 13px;
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Article to Textbook Flow Section */
.digital-product__flow {
    padding: 32px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: 16px;
    border: 2px solid #0ea5e9;
    position: relative;
    overflow: hidden;
}

.digital-product__flow::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.flow-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    position: relative;
}

.flow-card__header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    text-align: center;
    justify-content: center;
}

.flow-card__icon {
    font-size: 48px;
    line-height: 1;
    filter: drop-shadow(0 2px 8px rgba(14, 165, 233, 0.2));
}

.flow-card__title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    line-height: 1.3;
}

.flow-card__message {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin: 0 0 24px 0;
    text-align: center;
}

.flow-card__benefits {
    margin-bottom: 32px;
}

.flow-card__benefits-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 20px 0;
    text-align: center;
}

.flow-benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.flow-benefit {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: #f8fffe;
    border-radius: 12px;
    border-left: 4px solid #0ea5e9;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.flow-benefit:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.15);
}

.flow-benefit__icon {
    font-size: 32px;
    line-height: 1;
    flex-shrink: 0;
}

.flow-benefit__content {
    flex: 1;
}

.flow-benefit__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.flow-benefit__desc {
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin: 0;
}

.flow-card__special-offer {
    margin-bottom: 32px;
}

.special-offer {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: 16px;
    padding: 24px;
    border: 2px solid #f59e0b;
    position: relative;
    overflow: hidden;
}

.special-offer::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.special-offer__badge {
    display: inline-block;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
}

.special-offer__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 12px 0;
    line-height: 1.3;
}

.special-offer__description {
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin: 0 0 20px 0;
}

.special-offer__pricing {
    display: flex;
    justify-content: center;
}

.special-offer__price {
    text-align: center;
}

.special-offer__price-label {
    display: block;
    font-size: 14px;
    color: var(--color-text-secondary);
    font-weight: 600;
    margin-bottom: 4px;
}

.special-offer__price-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #f59e0b;
    margin-bottom: 8px;
}

.special-offer__price-note {
    display: block;
    font-size: 13px;
    color: var(--color-text-secondary);
    font-style: italic;
}

.flow-card__cta {
    text-align: center;
}

.flow-card__button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    color: white;
    border: none;
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.3);
    margin-bottom: 16px;
}

.flow-card__button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.4);
    background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
}

.flow-card__guarantee {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0;
    font-style: italic;
}

/* Opportunity Cost Section */
.digital-product__opportunity-cost {
    padding: 32px;
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    border-radius: 16px;
    border: 2px solid #ef4444;
    position: relative;
    overflow: hidden;
}

.digital-product__opportunity-cost::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(239, 68, 68, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.opportunity-cost-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.opportunity-cost-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.opportunity-cost-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.2);
}

.opportunity-cost-item__icon {
    font-size: 32px;
    line-height: 1;
    flex-shrink: 0;
}

.opportunity-cost-item__content {
    flex: 1;
}

.opportunity-cost-item__title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px 0;
    line-height: 1.4;
}

.opportunity-cost-item__desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.5;
}

.opportunity-cost-summary {
    margin-top: 24px;
    padding: 20px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.opportunity-cost-summary__text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    margin: 0;
}

.opportunity-cost-summary__text strong {
    color: #ef4444;
    font-size: 18px;
}

.digital-product__section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 16px 0;
}

.digital-product__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.digital-product__list li {
    position: relative;
    padding-left: 28px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.digital-product__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 16px;
}

/* Footer */
.digital-product__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding-top: 32px;
    border-top: 2px solid #f0f0f0;
}

.digital-product__price {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.digital-product__price-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.digital-product__price-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
}

.digital-product__cta {
    white-space: nowrap;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    background: var(--gradient-blue);
    color: var(--color-text-inverse);
    border: none;
}

.digital-product__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.3);
}

/* Language-specific Display Control */
[data-lang-only] {
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    .digital-product {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 32px 24px;
    }

    .digital-product__visual {
        position: static;
        flex-direction: row;
        justify-content: center;
    }

    .digital-product__icon {
        font-size: 80px;
    }

    .digital-product__title {
        font-size: 24px;
    }

    .digital-product__subtitle {
        font-size: 18px;
    }

    .digital-product__footer {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .digital-product__cta {
        width: 100%;
        text-align: center;
    }

    .digital-product__section {
        padding: 20px;
    }

    .digital-product__benefits {
        padding: 24px;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .benefit-item {
        padding: 16px;
    }

    .benefit-item__icon {
        font-size: 28px;
    }

    .benefits-summary {
        padding: 16px;
    }

    .benefits-summary__text {
        font-size: 15px;
    }

    .benefits-summary__text strong {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .digital-product {
        padding: 24px 16px;
    }

    .digital-product__icon {
        font-size: 64px;
    }

    .digital-product__title {
        font-size: 20px;
    }

    .digital-product__subtitle {
        font-size: 16px;
    }

    .digital-product__summary {
        font-size: 15px;
    }

    .digital-product__section-title {
        font-size: 16px;
    }

    .digital-product__list li {
        font-size: 14px;
    }
}
/* Additional responsive styles for new sections */
@media (max-width: 768px) {
    .digital-product__sample-content {
        padding: 24px;
    }

    .sample-content-card {
        padding: 24px;
    }

    .sample-content-card__header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 16px;
    }

    .sample-content-card__icon {
        font-size: 40px;
    }

    .sample-content-card__title {
        font-size: 20px;
    }

    .sample-content-card__details {
        justify-content: center;
        gap: 12px;
    }

    .sample-content-card__reading-time,
    .sample-content-card__type {
        font-size: 13px;
        padding: 5px 10px;
    }

    .sample-content-card__highlights {
        padding: 16px;
    }

    .sample-content-card__button {
        padding: 12px 24px;
        font-size: 15px;
    }

    .digital-product__relationship {
        padding: 24px;
    }

    .relationship-comparison {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .relationship-arrow {
        transform: rotate(90deg);
        margin: 16px 0;
    }

    .relationship-item {
        padding: 20px;
    }

    .relationship-item__title {
        font-size: 16px;
    }

    .relationship-value {
        padding: 20px;
        margin-top: 24px;
    }

    .relationship-value__title {
        font-size: 16px;
    }

    .relationship-value__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .relationship-value__item {
        padding: 14px;
    }

    .relationship-value__item-icon {
        font-size: 20px;
    }

    .relationship-value__item-title {
        font-size: 14px;
    }

    .relationship-value__item-desc {
        font-size: 12px;
    }

    .digital-product__flow {
        padding: 24px;
    }

    .flow-card {
        padding: 24px;
    }

    .flow-card__header {
        flex-direction: column;
        gap: 12px;
    }

    .flow-card__icon {
        font-size: 40px;
    }

    .flow-card__title {
        font-size: 20px;
    }

    .flow-card__message {
        font-size: 15px;
    }

    .flow-card__benefits-title {
        font-size: 16px;
    }

    .flow-benefits-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .flow-benefit {
        padding: 16px;
    }

    .flow-benefit__icon {
        font-size: 28px;
    }

    .flow-benefit__title {
        font-size: 15px;
    }

    .flow-benefit__desc {
        font-size: 13px;
    }

    .special-offer {
        padding: 20px;
    }

    .special-offer__title {
        font-size: 18px;
    }

    .special-offer__description {
        font-size: 14px;
    }

    .special-offer__price-value {
        font-size: 24px;
    }

    .flow-card__button {
        padding: 14px 28px;
        font-size: 16px;
        width: 100%;
        justify-content: center;
    }

    .digital-product__opportunity-cost {
        padding: 24px;
    }

    .opportunity-cost-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .opportunity-cost-item {
        padding: 16px;
    }

    .opportunity-cost-item__icon {
        font-size: 28px;
    }

    .opportunity-cost-summary {
        padding: 16px;
    }

    .opportunity-cost-summary__text {
        font-size: 15px;
    }

    .opportunity-cost-summary__text strong {
        font-size: 16px;
    }
}