*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-main: #f8f6f3;
    --bg-light: #ffffff;
    --text-primary: #8b8680;
    --text-dark: #2a2a2a;
    --accent-teal: #5a9a94;
    --accent-sand: #d4c4a8;
    --accent-sand-light: #e8dcc8;
    --border-color: #e8e3dd;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
}

html,
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
}

main {
    min-height: calc(100vh - 80px - 200px);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.3rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

a {
    color: var(--accent-teal);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #4a8a84;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.container-fluid {
    padding: 0 20px;
}

header.navbar {
    background-color: var(--bg-light);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container-fluid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.brand-logo {
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 25px;
    align-items: center;
    flex: 1;
}

.nav-link {
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-teal);
}

.btn-catalog {
    padding: 10px 25px;
    background-color: var(--accent-teal);
    color: white;
    border: 1px solid var(--accent-teal);
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-catalog:hover {
    background-color: transparent;
    color: var(--accent-teal);
    transform: scale(1.02);
}

.hero {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 60px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 40px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.hero-benefits {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.benefit-card {
    background-color: var(--accent-sand-light);
    padding: 20px;
    border-radius: 6px;
    flex: 0 1 200px;
}

.benefit-card h3 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.benefit-card p {
    font-size: 0.9rem;
    margin: 0;
}

section {
    padding: 60px 0;
}

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

.categories-section h2,
.popular-products h2,
.quick-select h2,
.products-grid h2,
.product-guide h2,
.price-ranges h2,
.faq-section h2,
.thank-you-section h2,
.comparison-guide h2,
.about-purpose h2,
.about-content h2,
.about-usage h2,
.about-principles h2,
.contact-info h2,
.contact-form-section h2,
.products-intro h2,
.sort-section h3 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
}

.category-card {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.category-card:hover {
    box-shadow: var(--shadow-light);
    transform: translateY(-4px);
}

.category-image {
    width: 100%;
    height: 180px;
    background-size: cover;
    background-position: center;
}

.category-card h3 {
    padding: 20px 20px 10px;
}

.category-card p {
    padding: 0 20px;
    font-size: 0.9rem;
    flex: 1;
}

.category-link {
    padding: 15px 20px;
    color: var(--accent-teal);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.category-link:hover {
    color: #4a8a84;
}

.quick-select {
    background-color: var(--bg-main);
}

.quick-card {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 25px;
    border-radius: 6px;
    text-align: center;
    transition: all 0.3s ease;
}

.quick-card:hover {
    box-shadow: var(--shadow-light);
    background-color: var(--accent-sand-light);
}

.quick-card h3 {
    margin-bottom: 10px;
}

.quick-link {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 15px;
    border: 1px solid var(--accent-teal);
    color: var(--accent-teal);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.quick-link:hover {
    background-color: var(--accent-teal);
    color: white;
}

.popular-products {
    background-color: var(--bg-white);
}

.product-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    box-shadow: var(--shadow-light);
}

.product-image {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    transition: transform 0.3s ease;
}

.product-card:hover .product-image {
    transform: scale(1.03);
}

.product-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-info h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.product-desc {
    font-size: 0.9rem;
    margin-bottom: 15px;
    flex: 1;
}

.product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    gap: 10px;
}

.format-badge {
    background-color: var(--accent-sand-light);
    color: var(--text-dark);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.price {
    font-weight: 700;
    color: var(--accent-teal);
    font-size: 1.1rem;
}

.product-btn {
    display: inline-block;
    padding: 10px 15px;
    background-color: var(--accent-teal);
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.9rem;
    text-align: center;
    transition: all 0.3s ease;
}

.product-btn:hover {
    background-color: #4a8a84;
    transform: scale(1.02);
}

.product-guide {
    background-color: var(--bg-main);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.guide-item {
    background-color: var(--bg-white);
    padding: 25px;
    border-radius: 6px;
    border-left: 4px solid var(--accent-teal);
}

.guide-item h3 {
    color: var(--accent-teal);
    margin-bottom: 10px;
}

.price-ranges {
    background-color: var(--bg-white);
}

.price-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.price-item {
    background-color: var(--bg-main);
    padding: 30px;
    border-radius: 6px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.price-item h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.price-item p:first-of-type {
    font-size: 1.8rem;
    color: var(--accent-teal);
    font-weight: 700;
    margin-bottom: 10px;
}

.price-desc {
    font-size: 0.9rem;
    color: var(--text-primary);
}

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

.faq-item {
    background-color: var(--bg-white);
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 15px;
    border-left: 4px solid var(--accent-sand);
}

.faq-item h3 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.faq-item p {
    font-size: 0.9rem;
    margin: 0;
}

.sort-section {
    background-color: var(--bg-white);
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
}

.sort-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.sort-btn {
    padding: 10px 20px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.sort-btn:hover,
.sort-btn.active {
    background-color: var(--accent-teal);
    color: white;
    border-color: var(--accent-teal);
}

.products-intro {
    background-color: var(--bg-white);
    text-align: center;
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.products-intro p {
    max-width: 600px;
    margin: 0 auto;
}

.products-grid {
    background-color: var(--bg-white);
}

.comparison-guide {
    background-color: var(--bg-main);
    text-align: center;
}

.comparison-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.comparison-item {
    background-color: var(--bg-white);
    padding: 25px;
    border-radius: 6px;
}

.comparison-item h3 {
    margin-bottom: 10px;
}

.thank-you-section {
    background-color: var(--bg-white);
    min-height: calc(100vh - 80px - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.thank-you-content {
    text-align: center;
    max-width: 600px;
}

.thank-you-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.thank-you-message {
    font-size: 1.2rem;
    color: var(--accent-teal);
    margin-bottom: 15px;
}

.thank-you-subtitle {
    color: var(--text-primary);
    margin-bottom: 30px;
}

.btn-return {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--accent-teal);
    color: white;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-return:hover {
    background-color: #4a8a84;
    transform: scale(1.02);
}

.legal-section {
    background-color: var(--bg-white);
    padding: 60px 0;
}

.legal-section h1 {
    margin-bottom: 40px;
    text-align: center;
}

.legal-section h2 {
    margin-top: 40px;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.legal-section h3 {
    margin-top: 25px;
    margin-bottom: 10px;
}

.legal-section ul {
    margin: 15px 0 15px 30px;
}

.legal-section li {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.legal-section hr {
    margin: 40px 0;
    border: none;
    border-top: 1px solid var(--border-color);
}

.contact-info {
    background-color: var(--bg-white);
    padding: 40px 0;
}

.info-block {
    background-color: var(--bg-main);
    padding: 25px;
    border-radius: 6px;
}

.info-block h3 {
    margin-bottom: 10px;
}

.contact-form-section {
    background-color: var(--bg-white);
    padding: 40px 0;
}

.contact-form-section > .container {
    max-width: 600px;
}

.contact-form {
    background-color: var(--bg-main);
    padding: 30px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-size: 0.95rem;
    color: var(--text-dark);
    background-color: var(--bg-white);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-teal);
    box-shadow: 0 0 0 3px rgba(90, 154, 148, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    margin: 0;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
    margin-right: 8px;
    cursor: pointer;
}

.btn-submit {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--accent-teal);
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-submit:hover {
    background-color: #4a8a84;
    transform: scale(1.02);
}

.about-list {
    list-style: none;
    padding: 0;
}

.about-list li {
    padding: 10px 0 10px 30px;
    position: relative;
    color: var(--text-primary);
}

.about-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-teal);
}

.content-principle {
    background-color: var(--bg-main);
    padding: 25px;
    border-radius: 6px;
    border-left: 4px solid var(--accent-sand);
}

.content-principle h3 {
    margin-bottom: 10px;
}

.usage-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.step {
    background-color: var(--bg-main);
    padding: 25px;
    border-radius: 6px;
    border-left: 4px solid var(--accent-teal);
}

.step h3 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

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

.principle-card {
    background-color: var(--bg-main);
    padding: 25px;
    border-radius: 6px;
    text-align: center;
}

.principle-card h3 {
    color: var(--accent-teal);
    margin-bottom: 10px;
}

footer.footer {
    background-color: var(--text-dark);
    color: var(--bg-main);
    padding: 60px 0 20px;
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: white;
    margin-bottom: 15px;
}

.footer-section p {
    color: var(--bg-main);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--bg-main);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-sand);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--bg-main);
    font-size: 0.85rem;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--text-dark);
    color: white;
    padding: 20px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 999;
    max-width: 100%;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.cookie-content h3 {
    color: white;
    margin: 0 0 5px 0;
    font-size: 1rem;
}

.cookie-content p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--bg-main);
}

.cookie-buttons {
    display: flex;
    gap: 10px;
    white-space: nowrap;
}

.btn-accept {
    padding: 10px 20px;
    background-color: var(--accent-teal);
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.btn-accept:hover {
    background-color: #4a8a84;
}

.btn-learn {
    color: white;
    font-size: 0.9rem;
    padding: 10px 20px;
    border: 1px solid white;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.btn-learn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    header .container-fluid {
        flex-direction: column;
        gap: 15px;
    }

    .nav-menu {
        width: 100%;
        justify-content: space-around;
        order: 3;
        gap: 10px;
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .btn-catalog {
        padding: 8px 15px;
        font-size: 0.8rem;
    }

    .hero {
        min-height: 300px;
        margin-bottom: 40px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-benefits {
        gap: 10px;
    }

    .benefit-card {
        flex: 0 1 150px;
        padding: 15px;
    }

    section {
        padding: 40px 0;
    }

    .categories-section h2,
    .popular-products h2,
    .quick-select h2 {
        font-size: 1.5rem;
    }

    .cookie-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }

    .btn-accept,
    .btn-learn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .navbar-brand {
        font-size: 1.2rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        gap: 8px;
    }

    .nav-link {
        font-size: 0.8rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    .hero {
        min-height: 250px;
        padding: 20px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .hero-benefits {
        gap: 8px;
    }

    .benefit-card {
        flex: 0 1 100px;
        padding: 10px;
    }

    .benefit-card h3 {
        font-size: 0.9rem;
    }

    .benefit-card p {
        font-size: 0.8rem;
    }

    section {
        padding: 25px 0;
    }

    .product-card {
        margin-bottom: 20px;
    }

    .sort-buttons {
        gap: 5px;
    }

    .sort-btn {
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .guide-grid,
    .price-grid,
    .principles-grid,
    .comparison-items {
        gap: 15px;
    }

    .guide-item,
    .price-item,
    .principle-card,
    .comparison-item {
        padding: 15px;
    }

    .contact-form {
        padding: 15px;
    }

    .form-group input,
    .form-group textarea {
        padding: 10px;
    }

    .legal-section {
        padding: 30px 0;
    }

    .legal-section h1 {
        margin-bottom: 20px;
    }

    .legal-section h2 {
        margin-top: 20px;
        font-size: 1.2rem;
    }

    .footer-grid {
        gap: 20px;
    }

    .footer-section h3 {
        font-size: 1rem;
    }

    .cookie-banner {
        padding: 15px;
    }

    .cookie-content {
        gap: 10px;
    }

    .cookie-content h3 {
        font-size: 0.95rem;
    }

    .cookie-content p {
        font-size: 0.85rem;
    }

    .btn-accept,
    .btn-learn {
        padding: 8px 15px;
        font-size: 0.85rem;
    }
}