/* Обнуление и базовые стили */
html {
    scroll-behavior: smooth;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #333333;
    background-color: #FAFAFA;
    line-height: 1.5;
}

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

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Компоненты */
.btn {
    display: inline-block;
    background-color: #FF6B6B;
    color: #FFFFFF;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s ease;
}

.btn:hover {
    background-color: #E05353;
}

.btn--full {
    display: block;
    width: 100%;
    padding: 15px;
    margin-top: 15px;
}

/* 1. Шапка сайта */
.header {
    background-color: #FFFFFF;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.menu {
    display: flex;
    list-style: none;
    gap: 24px;
}

.menu__link {
    font-weight: 500;
    color: #555;
    transition: color 0.2s;
}

.menu__link:hover {
    color: #FF6B6B;
}

.user-actions {
    display: flex;
    gap: 15px;
}

.action-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: #333;
    padding: 5px;
    transition: color 0.2s;
}

.action-btn:hover {
    color: #FF6B6B;
}

/* 2. Главный экран */
.hero-section {
    background-color: #F4F9F8;
    padding: 60px 0;
    overflow: hidden;
}

.hero-section__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-section__content {
    flex: 1;
    max-width: 550px;
}

.hero-section__title {
    font-size: 42px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #2C3E50;
}

.hero-section__subtitle {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
}

.hero-section__image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-section__image img {
    max-height: 400px;
    object-fit: contain;
}

/* 3. Категории */
.categories-section {
    padding: 60px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.see-all {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #4ECDC4;
    font-weight: 600;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.category-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

.card-image {
    width: 100%;
    height: 160px;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 15px;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-card__title {
    font-weight: 600;
    color: #2C3E50;
}

/* 4. О нас */
.about-brief-section {
    background-color: #FFFFFF;
    padding: 80px 0;
}

.about-brief-section__container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-brief-section__content {
    flex: 1;
}

.about-brief-section__content h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.about-brief-section__content p {
    color: #666;
    margin-bottom: 30px;
}

.about-brief-section__image {
    flex: 1;
}

.about-brief-section__image img {
    border-radius: 12px;
}

/* 5. Карточка товара */
.product-section {
    padding: 60px 0;
    scroll-margin-top: 90px;
}

.product-container {
    display: flex;
    gap: 50px;
    background-color: #FFFFFF;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}

.product-gallery {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.product-img-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    height: 350px;
    background-color: #F8F9FA;
}

.product-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tag {
    position: absolute;
    top: 15px;
    left: 15px;
    background: #FF6B6B;
    color: #FFFFFF;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.product-gallery__thumbs {
    display: flex;
    gap: 15px;
    height: 80px;
}

.thumb {
    flex: 1;
    cursor: pointer;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
}

.thumb.active {
    border-color: #FF6B6B;
}

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

.product-info {
    flex: 1;
}

.product-title {
    font-size: 28px;
    margin-bottom: 10px;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 15px;
}

.rating-value {
    font-weight: bold;
}

.reviews-count {
    color: #888;
}

.product-descr {
    color: #555;
    margin-bottom: 25px;
}

.product-option-group {
    margin-bottom: 20px;
}

.option-label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
}

.volume-selector {
    display: flex;
    gap: 10px;
}

.volume-label {
    cursor: pointer;
}

.volume-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.volume-box {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid #DDD;
    background: #FFF;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    text-align: center;
}

.volume-label:hover .volume-box {
    border-color: #FF6B6B;
}

.volume-radio:checked + .volume-box {
    border-color: #FF6B6B;
    color: #FF6B6B;
    background-color: #FFF5F5;
    box-shadow: 0 0 0 1px #FF6B6B;
}

.quantity-selector {
    display: inline-flex;
    align-items: center;
    border: 1px solid #DDD;
    border-radius: 6px;
    background: #FFF;
}

.qty-btn {
    background: none;
    border: none;
    padding: 10px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-input {
    width: 40px;
    border: none;
    text-align: center;
    font-size: 16px;
    outline: none;
}

.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.delivery-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 25px 0;
}

.delivery-card {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    padding: 15px;
    border: 1px solid #EAEAEA;
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.delivery-card input {
    margin-top: 4px;
}

.delivery-card.active {
    border-color: #4ECDC4;
    background-color: #F9FDFD;
}

.delivery-card__content {
    display: flex;
    flex-direction: column;
}

.delivery-card__title {
    font-weight: 600;
}

.delivery-card__price {
    font-size: 18px;
    font-weight: bold;
    color: #FF6B6B;
    margin: 2px 0;
}

.delivery-card__meta {
    font-size: 13px;
    color: #777;
}

.tabs-container {
    margin-top: 35px;
    border-top: 1px solid #EEE;
    padding-top: 20px;
}

.tabs-headers {
    display: flex;
    gap: 20px;
    border-bottom: 1px solid #EEE;
    margin-bottom: 15px;
}

.tab-link {
    background: none;
    border: none;
    padding: 10px 0;
    cursor: pointer;
    font-weight: 600;
    color: #888;
    position: relative;
}

.tab-link.active {
    color: #333;
}

.tab-link.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #FF6B6B;
}

.tab-content {
    font-size: 14px;
    color: #555;
    min-height: 60px;
}

/* 6. Преимущества */
.advantages-section {
    background-color: #F4F9F8;
    padding: 60px 0;
}

.advantages-title {
    text-align: center;
    margin-bottom: 40px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.advantage-item {
    text-align: center;
    background: #FFF;
    padding: 30px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.advantage-icon {
    margin-bottom: 15px;
    display: flex;
    justify-content: center;
}

.advantage-item p {
    font-weight: 500;
    font-size: 15px;
    color: #2C3E50;
}

/* 7. О компании */
.about-company-section {
    padding: 80px 0;
}

.about-company-container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-company-image, .about-company-content {
    flex: 1;
}

.about-company-image img {
    border-radius: 12px;
}

.about-company-content h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.about-company-content p {
    color: #666;
    margin-bottom: 15px;
}

/* 8. Форма отправки */
.form-section {
    background-color: #FFF;
    padding: 60px 0;
}

.form-container {
    max-width: 700px;
    text-align: center;
    margin: 0 auto;
}

.form-subtitle {
    color: #666;
    margin-top: 10px;
    margin-bottom: 35px;
}

.consult-form {
    text-align: left;
}

.form-inputs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #DDD;
    border-radius: 6px;
    outline: none;
}

.form-control:focus {
    border-color: #FF6B6B;
}

.form-radio-group {
    margin-bottom: 25px;
}

.radio-group-title {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
}

.radio-options {
    display: flex;
    gap: 20px;
}

.radio-label, .checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
    font-size: 14px;
    color: #555;
}

.checkbox-label input {
    align-self: flex-start;
    margin-top: 4px;
}

.btn--submit {
    width: 200px;
    display: block;
    margin: 0 auto;
}

/* 9. Подвал */
.footer {
    background-color: #2C3E50;
    color: #FFF;
    padding: 30px 0;
    font-size: 14px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.socials {
    display: flex;
    gap: 20px;
}

.social-link {
    color: #FFF;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
}

.social-link:hover, .privacy-link:hover {
    color: #4ECDC4;
}

/* ==========================================================================
   АДАПТИВНАЯ ВЕРСТКА
   ========================================================================== */
@media (max-width: 1024px) {
    .container {
        max-width: 960px;
    }
    
    .hero-section__title {
        font-size: 36px;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-container {
        gap: 30px;
        padding: 25px;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 800px) {
    .header__container {
        height: auto;
        padding: 15px 20px;
        flex-direction: column;
        gap: 15px;
    }

    .menu {
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
        font-size: 14px;
    }

    .hero-section__container {
        flex-direction: column-reverse;
        text-align: center;
        padding: 40px 20px;
    }

    .hero-section__content {
        max-width: 100%;
    }

    .about-brief-section__container,
    .about-company-container,
    .product-container {
        flex-direction: column;
        gap: 30px;
    }

    .form-inputs {
        grid-template-columns: 1fr;
    }

    .radio-options {
        flex-direction: column;
        gap: 10px;
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}