/* ===== Курсы — Premium Lightweight ===== */

.courses-section {
    position: relative;
    padding: clamp(3rem, 6vw, 5rem) 0;
    overflow: hidden;
}

.courses-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 50% at 25% 35%, rgba(139, 92, 246, 0.06) 0%, transparent 70%),
        radial-gradient(ellipse 50% 40% at 75% 65%, rgba(236, 72, 153, 0.04) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.courses-section .container {
    position: relative;
    z-index: 1;
}

/* Заголовок секции */

.courses-header {
    text-align: center;
    margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.courses-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 16px;
    border-radius: 50px;
    background: rgba(139, 92, 246, 0.06);
    border: 1px solid rgba(139, 92, 246, 0.12);
    color: rgba(139, 92, 246, 0.8);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.courses-badge-icon {
    font-size: 12px;
    opacity: 0.7;
}

.courses-title {
    font-family: var(--font-family-heading);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.courses-title span {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.courses-subtitle {
    font-size: clamp(0.9rem, 1.5vw, 1.05rem);
    color: var(--color-text-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Сетка */

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 2vw, 1.5rem);
    margin-bottom: 2rem;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

/* Карточка */

.course-card {
    position: relative;
    background: rgba(18, 16, 36, 0.65);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(139, 92, 246, 0.08);
    border-radius: 20px;
    padding: clamp(1.5rem, 2.5vw, 2rem);
    display: flex;
    flex-direction: column;
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
                border-color 0.35s ease,
                box-shadow 0.35s ease;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    background: linear-gradient(165deg, rgba(139, 92, 246, 0.04) 0%, transparent 50%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.35s ease;
}

.course-card:hover {
    transform: translateY(-6px);
    border-color: rgba(139, 92, 246, 0.15);
    box-shadow:
        0 20px 50px -12px rgba(139, 92, 246, 0.12),
        0 0 0 1px rgba(139, 92, 246, 0.06);
}

.course-card:hover::before {
    opacity: 1;
}

/* Бейдж */

.course-card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    z-index: 2;
}

.course-card:nth-child(1) .course-card-badge {
    background: rgba(245, 158, 11, 0.12);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.course-card:nth-child(2) .course-card-badge {
    background: rgba(236, 72, 153, 0.12);
    color: #ec4899;
    border: 1px solid rgba(236, 72, 153, 0.2);
}

.course-card:nth-child(3) .course-card-badge {
    background: rgba(139, 92, 246, 0.12);
    color: #a78bfa;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

/* Иконка */

.course-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 1.25rem;
    flex-shrink: 0;
    position: relative;
}

.course-card:nth-child(1) .course-icon {
    background: rgba(139, 92, 246, 0.08);
    color: #a78bfa;
}

.course-card:nth-child(2) .course-icon {
    background: rgba(236, 72, 153, 0.08);
    color: #f472b6;
}

.course-card:nth-child(3) .course-icon {
    background: rgba(16, 185, 129, 0.08);
    color: #34d399;
}

/* Контент */

.course-card-title {
    font-family: var(--font-family-heading);
    font-size: clamp(1.05rem, 1.6vw, 1.2rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.25rem;
    line-height: 1.35;
}

.course-card-subtitle {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 0.9rem;
    line-height: 1.5;
}

.course-card-description {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.65;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

/* Фичи */

.course-features-mini {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.course-features-mini li {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.45);
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.4;
}

.course-features-mini li::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(139, 92, 246, 0.5);
    flex-shrink: 0;
}

/* Цена */

.course-price-block {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.course-price-old {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.3);
    text-decoration: line-through;
}

.course-price-current {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.course-price-discount {
    font-size: 0.72rem;
    font-weight: 600;
    color: #34d399;
    background: rgba(16, 185, 129, 0.08);
    padding: 2px 7px;
    border-radius: 4px;
    letter-spacing: 0.3px;
}

/* Кнопки */

.course-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.btn-course-details {
    flex: 1 1 auto;
    min-width: 0;
    padding: 10px 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    background: transparent;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    letter-spacing: 0.2px;
}

.btn-course-details:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.85);
}

.btn-course-buy {
    flex: 1 1 auto;
    min-width: 0;
    padding: 10px 14px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.85), rgba(236, 72, 153, 0.7));
    color: #fff;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    letter-spacing: 0.2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn-course-buy:hover {
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.25);
    filter: brightness(1.1);
}

/* Бандл */

.courses-bundle {
    text-align: center;
    padding: 1.25rem 2rem;
    background: rgba(18, 16, 36, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.08);
    border-radius: 14px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.courses-bundle-text {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0.35rem;
}

.courses-bundle-text strong {
    color: #34d399;
    font-weight: 600;
}

.courses-bundle-hint {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.3);
}

/* ===== Модальное окно курса ===== */

.course-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: none;
    justify-content: center;
    align-items: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
    overscroll-behavior: none;
}

.course-modal.active {
    display: flex;
    opacity: 1;
}

.course-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(6, 6, 18, 0.8);
    backdrop-filter: blur(20px) saturate(1.1);
    -webkit-backdrop-filter: blur(20px) saturate(1.1);
    z-index: -1;
}

.course-modal-content {
    position: relative;
    width: 100%;
    max-width: 660px;
    max-height: 85vh;
    overflow-y: auto;
    background: rgba(15, 14, 30, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: clamp(1.5rem, 3vw, 2.5rem);
    scrollbar-width: thin;
    scrollbar-color: rgba(139, 92, 246, 0.2) transparent;
}

.course-modal-content::-webkit-scrollbar {
    width: 5px;
}

.course-modal-content::-webkit-scrollbar-thumb {
    background: rgba(139, 92, 246, 0.2);
    border-radius: 3px;
}

.course-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 37px;
    height: 37px;
    border: none;
    border-radius: 0;
    background: none;
    color: rgba(255, 255, 255, 0.3);
    font-size: 32px;
    font-weight: 300;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
    line-height: 1;
    padding: 0;
    z-index: 2;
}

.course-modal-close:hover {
    color: rgba(255, 255, 255, 0.7);
}

.course-modal-header {
    margin-bottom: 1.5rem;
}

.course-modal-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 0.75rem;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.15);
    color: #a78bfa;
}

.course-modal-title {
    font-family: var(--font-family-heading);
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.3rem;
    line-height: 1.3;
}

.course-modal-subtitle {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.45);
    line-height: 1.55;
}

/* Программа курса */

.course-modal-section {
    margin-bottom: 1.5rem;
}

.course-modal-section-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.course-modal-section-title::before {
    content: '';
    width: 2px;
    height: 16px;
    border-radius: 1px;
    background: rgba(139, 92, 246, 0.5);
    flex-shrink: 0;
}

/* Модули */

.course-program-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.course-program-item {
    display: flex;
    gap: 12px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 10px;
    transition: background 0.2s ease;
}

.course-program-item:hover {
    background: rgba(255, 255, 255, 0.03);
}

.course-program-num {
    font-size: 0.72rem;
    font-weight: 600;
    color: rgba(139, 92, 246, 0.6);
    white-space: nowrap;
    min-width: 65px;
    letter-spacing: 0.3px;
}

.course-program-info {
    flex: 1;
}

.course-program-info strong {
    font-size: 0.85rem;
    color: var(--color-text);
    display: block;
    margin-bottom: 2px;
    font-weight: 600;
}

.course-program-info span {
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.4;
}

/* Фичи в модалке */

.course-features-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.course-features-list li {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.4;
}

.course-features-list li::before {
    content: '✓';
    color: #34d399;
    font-weight: 600;
    font-size: 11px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Результаты */

.course-results-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.course-results-list li {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.65);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(16, 185, 129, 0.03);
    border-radius: 8px;
    border: 1px solid rgba(16, 185, 129, 0.06);
    line-height: 1.4;
}

.course-results-list li::before {
    content: '→';
    color: rgba(52, 211, 153, 0.6);
    font-weight: 500;
    flex-shrink: 0;
}

/* Ценовой блок в модалке */

.course-modal-price {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.15rem 1.35rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 14px;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 12px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.course-modal-price-info {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.course-modal-price-old {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.3);
    text-decoration: line-through;
}

.course-modal-price-current {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.course-modal-price-discount {
    font-size: 0.75rem;
    font-weight: 600;
    color: #34d399;
    background: rgba(16, 185, 129, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
}

.course-modal-meta {
    display: flex;
    gap: 16px;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.35);
}

.course-modal-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Кнопка покупки в модалке */

.btn-course-buy-modal {
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.85), rgba(236, 72, 153, 0.7));
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    letter-spacing: 0.3px;
}

.btn-course-buy-modal:hover {
    box-shadow: 0 6px 28px rgba(139, 92, 246, 0.3);
    filter: brightness(1.1);
}

.course-modal-guarantee {
    text-align: center;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    margin-top: 0.75rem;
}

/* ===== Адаптив ===== */

@media (max-width: 1024px) {
    .courses-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        max-width: 420px;
        margin-left: auto;
        margin-right: auto;
    }

    .course-actions {
        flex-direction: column;
    }

    .btn-course-buy,
    .btn-course-details {
        width: 100%;
        font-size: 0.85rem;
    }

    .course-features-list {
        grid-template-columns: 1fr;
    }

    .course-modal-price {
        flex-direction: column;
        align-items: flex-start;
    }

    .course-modal-content {
        max-height: 90vh;
        padding: 1.25rem;
    }

    .courses-bundle {
        padding: 1rem 1.25rem;
    }
}