:root {
    /* New color scheme */
    --primary-color: #2b6cb0; /* Deep blue */
    --primary-dark: #2c5282; /* Darker blue for hover */
    --secondary-color: #f6ad55; /* Warm orange for accents */
    --error-color: #c53030; /* Red for errors */
    --text-color: #1a202c; /* Dark gray for text */
    --text-light: #4a5568; /* Lighter gray for secondary text */
    --bg-color: #edf2f7; /* Light gray background */
    --bg-light: #ffffff; /* White for cards and modals */
    --border-color: #e2e8f0; /* Light border color */
    --footer-bg: #1a202c; /* Dark footer */
    --footer-text: #e2e8f0; /* Light gray for footer text */

    /* Shadows and border radius */
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
    --radius: 12px; /* Increased for softer corners */

    /* Transitions */
    --transition: all 0.2s ease-in-out;
}

/* Base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    
    width: 100%;
    max-width: 1280px; /* Wider container for modern look */
    margin: 0 auto;
    padding: 0 24px;
}

.container-docs {
    width: 100%;
    max-width: 1280px; /* Wider container for modern look */
    margin: 0 auto;
    padding: 0 24px;
}

.container-docs > ul, ol {
    margin-left: 20px;
    margin-bottom: var(--element-margin);
}

.container-docs > .section {
    padding: 8px 0;
    margin-bottom: 10px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    padding: 12px 28px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.btn--outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn--outline:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Header */
.header {
    background-color: var(--bg-light);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-color);
}

.logo span {
    color: var(--primary-color);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav__link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
}

.nav__link:hover {
    color: var(--primary-color);
}

.cart-icon {
    position: relative;
    cursor: pointer;
}

.cart-icon i {
    font-size: 24px;
    color: var(--text-color);
    transition: var(--transition);
}

.cart-icon:hover i {
    color: var(--primary-color);
}

.cart-count {
    position: absolute;
    top: -10px;
    right: -10px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 11px;
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    color: var(--primary-color);
}

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-light);
    box-shadow: var(--shadow);
    padding: 24px;
    z-index: 999;
    display: none;
    flex-direction: column;
    gap: 12px;
}

.mobile-menu__link {
    padding: 12px 0;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 16px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.mobile-menu__link:hover {
    color: var(--primary-color);
}

.mobile-menu__link:last-child {
    border-bottom: none;
}

.mobile-cart {
    display: flex;
    align-items: center;
    padding: 12px 0;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
}

.mobile-cart:hover {
    color: var(--primary-color);
}

.mobile-cart i {
    margin-right: 8px;
    font-size: 20px;
}

.mobile-cart-count {
    margin: 0 8px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 11px;
    font-weight: 600;
}

/* Main content */
.main {
    flex: 1;
    padding-top: 80px;
}

/* Hero section */
.hero {
    background: linear-gradient(0deg, var(--primary-color) 0%, var(--bg-color) 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero__title {
    font-size: 40px;
    margin-bottom: 16px;
    font-weight: 700;
    line-height: 1.3;
}

.hero__subtitle {
    font-size: 18px;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

/* Sections */
.section {
    padding: 64px 0;
}

.section__title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: var(--text-color);
    font-weight: 600;
}

.section__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 12px auto 0;
    border-radius: 2px;
}

.section__subtitle {
    text-align: center;
    color: var(--text-light);
    margin-top: -20px;
    margin-bottom: 20px;
}

.catalog-link {
    display: block;
    width: fit-content;
    margin: 0 auto 20px;
}

.home-seo-text {
    max-width: 900px;
    margin: 0 auto;
    color: var(--text-light);
    line-height: 1.7;
}

.home-seo-text p {
    margin-bottom: 16px;
}

.section--light {
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.feature-card {
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.12), rgba(246, 173, 85, 0.12));
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    text-align: center;
}

.feature-card h3 {
    margin-top: 0;
    margin-bottom: 8px;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(43, 108, 176, 0.16);
    color: var(--primary-color);
    font-size: 24px;
    margin-bottom: 12px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.step-card {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    margin-bottom: 12px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.review-card {
    background-color: var(--bg-light);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.review-text {
    margin-bottom: 12px;
    color: var(--text-color);
}

.review-meta {
    font-size: 14px;
    color: var(--text-light);
}

.certificates-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.certificates-preview img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    object-fit: cover;
}

.faq-list {
    display: grid;
    gap: 12px;
    margin-top: 24px;
}

.faq-item {
    background-color: var(--bg-light);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

.faq-item h3 {
    margin-top: 0;
    margin-bottom: 8px;
}

.about-brief {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    align-items: center;
}

.about-brief__actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* About section */
.about__content {
    max-width: 900px;
    margin: 0 auto;
}

.about__content p {
    margin-bottom: 16px;
    font-size: 16px;
}

.company-details {
    margin-top: 32px;
    padding: 24px;
    background-color: var(--bg-light);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.company-details h3 {
    margin-bottom: 16px;
    color: var(--primary-color);
    text-align: center;
    font-size: 20px;
}

.company-details p {
    margin-bottom: 8px;
    font-size: 14px;
}

.company-details a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.company-details a:hover {
    text-decoration: underline;
}

/* Catalog */
.catalog__filters {
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
}

.search-input {
    width: 100%;
    max-width: 400px;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.2);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.product-card {
    background-color: var(--bg-light);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.product-card__image {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.product-card__content {
    padding: 16px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-card__title {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 600;
}

.product-card__title-link {
    color: inherit;
    text-decoration: none;
}

.product-card__image-link {
    display: block;
}

.category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 28px;
}

.category-pill {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: 14px;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.category-pill:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
}

.product-card__description {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 12px;
    flex-grow: 1;
}

.product-card__price {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.product-card__btn {
    width: 100%;
}

/* Footer */
.footer {
    background-color: var(--footer-bg);
    color: white;
    padding: 48px 0 24px;
    margin-top: auto;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer__title {
    font-size: 16px;
    margin-bottom: 16px;
    color: white;
    font-weight: 600;
}

.footer__links {
    list-style: none;
}

.footer__link {
    color: var(--footer-text);
    text-decoration: none;
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    transition: var(--transition);
}

.footer__link:hover {
    color: white;
}

.footer__contacts {
    list-style: none;
}

.footer__contacts li {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    font-size: 14px;
}

.footer__contacts i {
    margin-right: 8px;
    color: var(--primary-color);
}

.footer__bottom {
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid #4a5568;
    color: var(--footer-text);
    font-size: 13px;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    overflow-y: auto;
    padding: 16px;
}

.modal__content {
    background-color: var(--bg-light);
    margin: 40px auto;
    max-width: 800px;
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: relative;
    padding: 24px;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal__close {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

.modal__close:hover {
    color: var(--text-color);
}

.modal__title {
    margin-bottom: 24px;
    text-align: center;
    color: var(--text-color);
    font-size: 24px;
    font-weight: 600;
}

/* Product modal */
.product-modal {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.product-modal__images {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.product-modal__main-image,
.product-modal__certificate {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
}

.product-modal__main-image img,
.product-modal__certificate img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius);
}

.zoom-btn {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.zoom-btn:hover {
    background-color: rgba(0, 0, 0, 0.7);
}

.product-modal__info {
    display: flex;
    flex-direction: column;
}

.product-modal__title {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 600;
}

.product-modal__price {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.product-modal__form {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 16px;
}

.product-modal__section {
    margin-bottom: 16px;
}

.product-modal__section-title {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
}

.expandable-content {
    position: relative;
}

.content-preview {
    max-height: 120px;
    overflow: hidden;
    transition: max-height 0.3s ease;
    position: relative;
}

.content-preview.expanded {
    max-height: 1000px;
}

.content-preview:not(.expanded)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1));
    pointer-events: none;
}

.expand-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 500;
    cursor: pointer;
    padding: 4px 0;
    margin-top: 4px;
    display: none;
    font-size: 14px;
    background-color: var(--bg-light);
    position: relative;
    z-index: 1;
}

.expand-btn:hover {
    text-decoration: underline;
}

.product-modal__actions {
    margin-top: auto;
    padding-top: 16px;
}

/* Image modal */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 3000;
    padding: 16px;
}

.image-modal__close {
    position: absolute;
    top: 16px;
    right: 24px;
    font-size: 36px;
    color: white;
    cursor: pointer;
    transition: var(--transition);
}

.image-modal__close:hover {
    color: var(--primary-color);
}

.image-modal__content {
    max-width: 95%;
    max-height: 95%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Cart */
.cart-items {
    margin-bottom: 24px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item__info {
    flex-grow: 1;
}

.cart-item__name {
    font-weight: 500;
    margin-bottom: 4px;
    font-size: 15px;
}

.cart-item__price {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 14px;
}

.cart-item__quantity {
    display: flex;
    align-items: center;
    margin: 0 16px;
}

.quantity-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-light);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.quantity-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.quantity-value {
    width: 36px;
    text-align: center;
    font-size: 14px;
}

.cart-item__remove {
    color: var(--text-light);
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.cart-item__remove:hover {
    color: var(--secondary-color);
}

.cart-total {
    text-align: right;
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 24px;
}

.cart-total span {
    color: var(--primary-color);
}

/* Cart Discount Info */
.cart-discount-info {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 20px;
}

.cart-discount-info .discount-current,
.cart-discount-info .discount-savings {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
}

.cart-discount-info .discount-label {
    color: var(--text-light);
    font-size: 14px;
}

.cart-discount-info .discount-value {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-color);
}

.cart-discount-info .discount-value.savings {
    color: #16a34a;
    font-size: 16px;
}

.cart-discount-info .discount-hint {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed #bae6fd;
    text-align: center;
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 500;
}

.cart-discount-info .discount-course {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0 12px;
    margin-bottom: 8px;
    border-bottom: 1px solid #bae6fd;
}

.cart-discount-info .discount-value.course-name {
    color: var(--primary-color);
    font-size: 16px;
    font-weight: 600;
}

.cart-item__packages {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 4px;
}

/* Checkout course info */
.checkout-course-info {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    border-radius: var(--radius);
    padding: 12px 16px;
    margin-top: 16px;
    text-align: center;
    color: var(--primary-color);
    font-size: 14px;
}

.cart-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Forms */
.order-form {
    max-width: 450px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.2);
}

.form-group input::placeholder {
    color: #a0aec0;
    opacity: 1;
}

/* Form validation */
.form-group input.invalid,
.form-group textarea.invalid,
.form-group select.invalid {
    border-color: var(--error-color);
    box-shadow: 0 0 0 1px var(--error-color);
}

.form-group input.invalid:focus,
.form-group textarea.invalid:focus,
.form-group select.invalid:focus {
    box-shadow: 0 0 0 3px rgba(197, 48, 48, 0.2);
}

.error-message {
    color: var(--error-color);
    font-size: 13px;
    margin-top: 4px;
    display: none;
}

.checkbox-group {
    display: flex;
    align-items: center;
    margin: 20px 0;
}

.checkbox-group input {
    width: auto;
    margin-right: 8px;
}

.policy-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.policy-link:hover {
    text-decoration: underline;
}

/* Notifications */
.notification {
    position: fixed;
    bottom: 16px;
    right: 16px;
    background-color: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 4000;
    max-width: 350px;
    font-size: 14px;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

/* Responsive design */
@media (max-width: 992px) {
    .product-modal {
        grid-template-columns: 1fr;
    }

    .product-modal__images {
        order: 2;
    }

    .product-modal__info {
        order: 1;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .header__inner {
        padding: 12px 0;
    }

    .logo {
        font-size: 22px;
    }

    .section {
        padding: 48px 0;
    }

    .section__title {
        font-size: 28px;
    }

    .hero {
        padding: 88px 0 56px;
    }

    .hero__title {
        font-size: 32px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
        gap: 16px;
    }

    .footer__content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .container,
    .container-docs {
        padding: 0 16px;
    }

    .section {
        padding: 32px 0;
    }

    .product-page {
        padding: 24px 0 40px;
    }

    .product-page__grid {
        gap: 20px;
        margin-bottom: 24px;
    }

    .product-page__actions {
        gap: 10px;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .product-page__actions .btn {
        flex: 1 1 calc(50% - 6px);
        width: auto;
        padding: 12px 12px;
        font-size: 14px;
        min-height: 44px;
    }

    .hero__title {
        font-size: 28px;
    }

    .hero__subtitle {
        font-size: 14px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-page__sections {
        gap: 16px;
    }

    .product-section {
        padding: 18px;
    }

    .product-section h2 {
        font-size: 20px;
    }

    .product-gallery {
        grid-template-columns: repeat(auto-fit, minmax(56px, 1fr));
        gap: 8px;
    }

    .product-hero__highlights,
    .composition-columns,
    .stats-grid,
    .info-icons,
    .delivery-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .about-brief {
        grid-template-columns: 1fr;
    }

    .about-brief__actions .btn {
        width: 100%;
        text-align: center;
    }

    .cart-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .cart-item__quantity {
        margin: 8px 0;
    }

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

    .btn {
        width: 100%;
    }

    .modal__content {
        padding: 16px;
    }
}
.product-disclaimer {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 16px;
    text-align: center;
    font-style: italic;
}

/* Product page */
.breadcrumbs {
    max-width: 1280px;
    margin: 20px auto 0;
    padding: 0 24px;
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.breadcrumbs a {
    color: var(--text-light);
    text-decoration: none;
}

.breadcrumbs__separator {
    color: var(--border-color);
}

.product-page {
    padding: 32px 0 64px;
}

.product-page__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 40px;
}

.product-page__media img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.product-page__certificate {
    margin-top: 16px;
}

.product-page__main-image {
    display: block;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    aspect-ratio: 1 / 1;
    width: 100%;
}

.product-page__main-image img {
    transition: transform 0.3s ease;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-page__main-image.is-certificate img {
    object-fit: contain;
    background-color: var(--bg-light);
}

@media (hover: hover) and (pointer: fine) {
    .product-page__main-image:hover img {
        transform: scale(1.05);
    }
}

.product-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.product-gallery__controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-top: 12px;
}

.gallery-indicator {
    font-size: 14px;
    color: var(--text-light);
    min-width: 72px;
    text-align: center;
}

.gallery-nav,
.gallery-zoom {
    border: 1px solid var(--border-color);
    background-color: var(--bg-light);
    border-radius: 999px;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 18px;
}

.gallery-nav:hover,
.gallery-zoom:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.gallery-thumb {
    padding: 0;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background-color: var(--bg-light);
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition);
}

.gallery-thumb.active,
.gallery-thumb:hover {
    border-color: var(--primary-color);
}

.gallery-thumb img {
    width: 100%;
    height: 70px;
    object-fit: cover;
}

.gallery-modal {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 5000;
    padding: 24px;
}

.gallery-modal.active {
    display: flex;
}

.gallery-modal picture,
.gallery-modal img {
    max-width: 95%;
    max-height: 95%;
}

.gallery-modal__close {
    position: absolute;
    top: 20px;
    right: 24px;
    border: none;
    background: transparent;
    color: white;
    font-size: 32px;
    cursor: pointer;
}

.product-page__info {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 12px 16px;
}

.product-page__title {
    font-size: 32px;
    line-height: 1.3;
}

.product-page__price {
    font-size: 26px;
    font-weight: 600;
    color: var(--primary-color);
}

.product-page__price .price-unit {
    font-size: 16px;
    font-weight: 400;
    color: #666;
}

.product-page__form {
    font-size: 16px;
    color: var(--text-light);
}

.product-page__cta {
    align-self: flex-start;
}

.product-page__sections {
    display: grid;
    gap: 24px;
}

.product-page__meta {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 12px;
    font-size: 13px;
    color: var(--text-light);
}

.product-page__category {
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.15), rgba(246, 173, 85, 0.2));
    border-radius: 999px;
    padding: 4px 10px;
    font-weight: 600;
    color: var(--primary-dark);
}

.product-page__sku {
    letter-spacing: 0.2px;
}

.product-page__meta i {
    margin-right: 6px;
    color: var(--primary-color);
}

.product-page__short {
    color: var(--text-light);
    margin-bottom: 8px;
}

.product-page__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.product-page__cta-outline {
    align-self: flex-start;
}

.product-page__actions .btn {
    text-align: center;
}

.product-page__cta,
.product-page__cta-outline {
    align-self: stretch;
}

.product-page__benefits {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    display: grid;
    gap: 6px;
    color: var(--text-light);
    font-size: 14px;
}

.product-page__benefits li i {
    margin-right: 8px;
    color: var(--primary-color);
}

.product-page__benefits li {
    background: rgba(43, 108, 176, 0.08);
    border-radius: 10px;
    padding: 6px 10px;
}


.product-hero__summary {
    margin-top: 24px;
}

.product-hero__highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.highlight-card {
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.12), rgba(246, 173, 85, 0.12));
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    text-align: center;
}

.highlight-icon {
    width: 56px;
    height: 56px;
    border-radius: 10px;
    background: rgba(43, 108, 176, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin: 0 auto 14px;
    font-size: 22px;
}

.info-icons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.info-icon {
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.08), rgba(246, 173, 85, 0.08));
    border-radius: 12px;
    padding: 12px 14px;
    color: var(--text-color);
    font-size: 14px;
}

.info-icon i {
    color: var(--primary-color);
}

.composition-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.stat-card {
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.12), rgba(246, 173, 85, 0.12));
    border-radius: var(--radius);
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow);
}

.stat-icon {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(43, 108, 176, 0.16);
}

.stat-number {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.feature-item {
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.08), rgba(246, 173, 85, 0.08));
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 14px;
}

.feature-item i {
    color: var(--primary-color);
    margin-right: 6px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.review-card {
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.08), rgba(246, 173, 85, 0.08));
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

.review-rating {
    color: #f6ad55;
    font-size: 14px;
    margin-bottom: 6px;
    letter-spacing: 1px;
}

.review-name {
    font-weight: 600;
}

.review-city {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.faq-list details {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 12px 16px;
    background-color: var(--bg-light);
    margin-bottom: 10px;
}

.faq-list summary {
    cursor: pointer;
    font-weight: 600;
}

.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.product-order {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
}

.order-mini-form {
    margin-top: 16px;
}

.form-note {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 8px;
}

.product-section {
    background-color: var(--bg-light);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-top: 24px;
}

.product-section h2 {
    margin-top: 0;
    color: var(--text-color);
}

.rich-text {
    color: var(--text-light);
    line-height: 1.7;
}

.rich-text ul {
    margin: 12px 0 0 18px;
}

.rich-text li {
    margin-bottom: 8px;
}

/* Composition Section Styles */
.product-composition {
    background: linear-gradient(135deg, #fefce8 0%, #fef3c7 50%, #fff7ed 100%);
    border: 1px solid rgba(234, 179, 8, 0.2);
    position: relative;
    overflow: hidden;
}

.product-composition::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(234, 179, 8, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.product-composition h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #92400e;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.product-composition h2 i {
    color: #d97706;
    font-size: 1.3rem;
}

.composition-content {
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid rgba(234, 179, 8, 0.15);
    margin-bottom: 20px;
}

.composition-content .rich-text {
    color: var(--text-color);
}

.composition-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.composition-feature {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(254, 243, 199, 0.5) 100%);
    padding: 16px;
    border-radius: var(--radius);
    border: 1px solid rgba(234, 179, 8, 0.2);
    transition: var(--transition);
}

.composition-feature:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(234, 179, 8, 0.2);
}

.composition-feature-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    border-radius: 50%;
    color: white;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.composition-feature-text h4 {
    margin: 0 0 4px 0;
    font-size: 14px;
    font-weight: 600;
    color: #92400e;
}

.composition-feature-text p {
    margin: 0;
    font-size: 13px;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .composition-features {
        grid-template-columns: 1fr;
    }
}

/* Effects Section Styles */
.product-effects {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0fdf4 100%);
    border: 1px solid rgba(43, 108, 176, 0.15);
    position: relative;
    overflow: hidden;
}

.product-effects::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(43, 108, 176, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.product-effects h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-dark);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.product-effects h2 i {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.effects-wrapper {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 24px;
    align-items: start;
}

.effects-icon-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius);
    color: white;
    min-width: 120px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(43, 108, 176, 0.3);
}

.effects-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    font-size: 1.5rem;
}

.effects-icon-box span {
    font-size: 12px;
    font-weight: 500;
    opacity: 0.9;
}

.effects-content {
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid rgba(43, 108, 176, 0.1);
}

.effects-content .rich-text {
    color: var(--text-color);
}

.effects-content .rich-text ul {
    list-style: none;
    margin-left: 0;
}

.effects-content .rich-text li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
}

.effects-content .rich-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.effects-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(43, 108, 176, 0.1);
}

.effects-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.15) 0%, rgba(16, 185, 129, 0.15) 100%);
    color: var(--primary-dark);
    padding: 10px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid rgba(43, 108, 176, 0.2);
    transition: var(--transition);
}

.effects-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(43, 108, 176, 0.2);
}

.effects-badge i {
    color: #10b981;
    font-size: 14px;
}

@media (max-width: 768px) {
    .effects-wrapper {
        grid-template-columns: 1fr;
    }
    
    .effects-icon-box {
        flex-direction: row;
        min-width: auto;
        padding: 12px 16px;
    }
    
    .effects-badges {
        justify-content: center;
    }
}

.delivery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.delivery-card {
    background: linear-gradient(135deg, rgba(43, 108, 176, 0.12), rgba(246, 173, 85, 0.12));
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}

.delivery-card h3 {
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-dark);
}

.delivery-card ul {
    margin: 12px 0 0 18px;
}

.delivery-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 16px 0 8px;
}

.delivery-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(43, 108, 176, 0.12);
    color: var(--primary-dark);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 13px;
}

.delivery-badge i {
    color: var(--primary-color);
}

@media (max-width: 992px) {
    .product-page__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .product-page__meta {
        flex-wrap: wrap;
    }
    .product-page__title {
        font-size: 26px;
    }

    .product-page__price {
        font-size: 22px;
    }

    .product-page__cta {
        width: 100%;
        justify-content: center;
    }

    .product-page__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .product-page__cta-outline {
        width: 100%;
        justify-content: center;
    }
}


/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    text-decoration: underline;
}

/* Sections */
.section {
    margin-bottom: 30px;
}

/* Highlight boxes */
.highlight {
    background-color: var(--highlight-bg);
    padding: 15px;
    border-left: 3px solid var(--primary-color);
    margin: 15px 0;
    border-radius: var(--radius);
}

.notice-box {
    background-color: var(--notice-bg);
    padding: 15px;
    border-left: 4px solid var(--notice-border);
    margin: 20px 0;
    border-radius: 5px;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin: 24px 0;
}

.certificates-grid img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    object-fit: cover;
}

.header-notice {
    background-color: var(--highlight-bg);
    padding: 20px;
    border-radius: var(--radius);
    margin-bottom: 30px;
    border-left: 4px solid var(--primary-color);
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: 20px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

th, td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

/* Operator info */
.operator-info {
    margin-top: 40px;
    padding: 20px;
    background-color: var(--highlight-bg);
    border-radius: var(--radius);
}

.last-update {
    text-align: right;
    font-style: italic;
    color: #666;
    margin-top: 30px;
}

.product-disclaimer {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 16px;
    text-align: center;
    font-style: italic;
}

/* Responsive design */
@media (max-width: 768px) {
    :root {
        --h1-size: 24px;
        --h2-size: 20px;
        --content-padding: 15px;
    }

    .header-notice {
        padding: 15px;
    }
}


/* Typography */
h1, h2, h3 {
    color: var(--primary-color);
    margin-top: 30px;
}

h1 {
    font-size: var(--h1-size);
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

h2 {
    font-size: var(--h2-size);
    margin-bottom: var(--element-margin);
}

h3 {
    font-size: var(--h3-size);
}

p, li {
    margin-bottom: 10px;
    font-size: var(--text-size);
}

/* Lists */
ul, ol {
    margin-bottom: var(--element-margin);
}

li {
    margin-bottom: 8px;
}

/* Cart page */
.cart-page {
    background-color: var(--bg-light);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.empty-cart {
    text-align: center;
    padding: 40px 0;
    color: var(--text-light);
}

@media (max-width: 576px) {
    .cart-page {
        padding: 16px;
    }
}

/* Checkout page */
.checkout-page {
    background-color: var(--bg-light);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.checkout-subtitle {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text-color);
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.checkout-cart {
    background-color: var(--bg-color);
    padding: 20px;
    border-radius: var(--radius);
}

.checkout-form {
    padding: 20px;
}

.empty-cart {
    text-align: center;
    padding: 40px 0;
    color: var(--text-light);
}

@media (max-width: 992px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .checkout-page {
        padding: 16px;
    }
    
    .checkout-cart,
    .checkout-form {
        padding: 16px;
    }
}

/* Contacts Page Styles */
.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.contact-card {
    background: var(--bg-light);
    padding: 32px 24px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: white;
    font-size: 24px;
}

.contact-card h3 {
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 18px;
}

.contact-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    transition: var(--transition);
}

.contact-card a:hover {
    color: var(--primary-dark);
}

.contact-note {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-light);
}

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

.company-detail {
    background: var(--bg-light);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.company-detail h4 {
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.company-detail p {
    color: var(--text-color);
    font-size: 15px;
}

.nav__link.active {
    color: var(--primary-color);
    font-weight: 600;
}

@media (max-width: 768px) {
    .contacts-grid {
        grid-template-columns: 1fr;
    }
    
    .company-details-grid {
        grid-template-columns: 1fr;
    }
}

/* Cart Course Info */
.cart-item__course {
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
    margin-top: 4px;
}

/* Course Selection Styles */
.course-selection {
    margin: 24px 0;
}

.course-selection__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 16px;
}

.course-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.course-option {
    cursor: pointer;
}

.course-option input[type="radio"] {
    display: none;
}

.course-option__card {
    position: relative;
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.course-option__card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.course-option input[type="radio"]:checked + .course-option__card {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, #ebf4ff 0%, #f7fafc 100%);
    box-shadow: 0 4px 12px rgba(43, 108, 176, 0.15);
}

.course-option__card--popular {
    border-color: var(--primary-color);
}

.course-option__card--best {
    border-color: #48bb78;
}

.course-option__popular-tag,
.course-option__best-tag {
    position: absolute;
    top: -10px;
    right: 16px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.course-option__popular-tag {
    background: var(--primary-color);
    color: white;
}

.course-option__best-tag {
    background: #48bb78;
    color: white;
}

.course-option__badge {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
}

.course-option__qty {
    font-size: 14px;
    color: var(--text-light);
    text-align: center;
}

.course-option__price {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
    text-align: right;
}

.course-option__per {
    font-size: 12px;
    color: var(--text-light);
    text-align: right;
    grid-column: 3;
    margin-top: -8px;
}

@media (max-width: 600px) {
    .course-option__card {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 8px;
    }
    
    .course-option__qty,
    .course-option__price,
    .course-option__per {
        text-align: center;
    }
    
    .course-option__per {
        grid-column: 1;
        margin-top: 0;
    }
    
    .course-option__popular-tag,
    .course-option__best-tag {
        right: 50%;
        transform: translateX(50%);
    }
}