:root {
    --color-bg-light: #FFFFFF;
    --color-bg-gray: #F5F5F3;
    --color-accent: #3C5852;
    --color-accent-hover: #2E4540;
    --color-text: #404040;
    --color-heading: #000000;
    --color-border: #ACA8A0;
    --font-heading: 'Basement Grotesque', 'Manrope', sans-serif;
    --font-body: 'Inter', 'Manrope', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg-light);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-heading);
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin-bottom: 24px; }
h3 { font-size: 1.35rem; margin-bottom: 16px; }

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 16px 32px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--color-accent);
    color: #FFFFFF;
}

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

.btn--outline {
    background-color: transparent;
    border-color: #FFFFFF;
    color: #FFFFFF;
}

.btn--outline:hover {
    background-color: #FFFFFF;
    color: var(--color-heading);
}

/* ===== ШАПКА (ОБНОВЛЕНА) ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: 18px 0;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: 1.5px;
    white-space: nowrap;
    flex-shrink: 0;
}

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

.nav__list {
    display: flex;
    list-style: none;
    gap: 22px;
    flex-wrap: nowrap;
}

.nav__link {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-text);
    white-space: nowrap;
    padding: 4px 0;
}

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

.nav__link--accent {
    color: var(--color-accent);
    font-weight: 600;
    position: relative;
}

.nav__link--accent::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.nav__link--accent:hover::after {
    transform: scaleX(1);
}

.header__contacts {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.header__phone {
    font-weight: 600;
    color: var(--color-heading);
    font-size: 0.95rem;
    white-space: nowrap;
}

.header__messengers {
    display: flex;
    gap: 8px;
}

.messenger-link {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 4px 10px;
    border-radius: 3px;
    white-space: nowrap;
}

.messenger-link:hover {
    background-color: var(--color-accent);
    color: #FFFFFF;
}

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    flex-shrink: 0;
}

.burger span {
    display: block;
    width: 26px;
    height: 2px;
    background-color: var(--color-heading);
    transition: var(--transition);
}

/* Hero-блок */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #FFFFFF;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1600607686527-6fb886090705?auto=format&fit=crop&q=80') center/cover no-repeat;
    z-index: -1;
}

.hero__content {
    text-align: center;
    max-width: 850px;
    margin-bottom: 60px;
}

.hero__title {
    color: #FFFFFF;
    margin-bottom: 24px;
}

.hero__subtitle {
    font-size: 1.15rem;
    margin-bottom: 40px;
    opacity: 0.95;
    line-height: 1.6;
}

.hero__buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.marquee {
    background-color: var(--color-accent);
    color: #FFFFFF;
    padding: 14px 0;
    overflow: hidden;
    white-space: nowrap;
    position: absolute;
    bottom: 0;
    width: 100%;
}

.marquee__content {
    display: inline-block;
    animation: marquee 25s linear infinite;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 1px;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Секции и отступы */
.section {
    padding: 120px 0;
}

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

.section--dark {
    background-color: var(--color-heading);
    color: #FFFFFF;
}

.section__title--light {
    color: #FFFFFF;
}

.section__desc--light {
    color: #CCCCCC;
}

.section__desc {
    max-width: 800px;
    margin-bottom: 60px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.section__center {
    text-align: center;
    margin-top: 60px;
}

/* СЕТКА ТОВАРОВ */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin: 60px 0;
}

.card {
    background-color: #FFFFFF;
    padding: 32px;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
    border-color: var(--color-accent);
}

.card--highlight {
    border: 2px solid var(--color-accent);
    background-color: #F9F9F7;
}

.card__img {
    width: 100%;
    aspect-ratio: 1 / 1;
    background-color: var(--color-border);
    margin-bottom: 28px;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 2px;
    object-fit: cover;
}

.card__img:hover {
    opacity: 0.85;
    transform: scale(1.02);
}

.card__title {
    font-size: 1.25rem;
    margin-bottom: 16px;
    color: var(--color-heading);
    line-height: 1.3;
}

.card__text {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card__price {
    font-weight: 600;
    color: var(--color-accent);
    margin-top: auto;
    font-size: 1.1rem;
}

/* LAST SLAB баннер */
.last-slab-banner {
    background: linear-gradient(135deg, #3C5852 0%, #2E4540 100%);
    color: #FFFFFF;
    padding: 48px;
    margin: 80px 0 60px;
    border-radius: 4px;
    text-align: center;
}

.last-slab-banner h3 {
    color: #FFFFFF;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.last-slab-banner p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.95;
    line-height: 1.6;
}

.subsection__title {
    font-size: 1.5rem;
    margin: 80px 0 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-border);
    color: var(--color-heading);
}

.section--dark .subsection__title {
    color: #FFFFFF;
    border-bottom-color: #444;
}

/* О производстве */
.grid {
    display: grid;
    gap: 40px;
}

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

.about__block {
    padding: 32px;
    border-left: 4px solid var(--color-accent);
    background-color: rgba(255,255,255,0.05);
}

.about__block h3 {
    color: #FFFFFF;
    margin-bottom: 12px;
}

.about__block p {
    line-height: 1.6;
    color: #CCCCCC;
}

.about__media {
    margin: 60px 0;
}

.placeholder-video {
    width: 100%;
    height: 350px;
    background-color: #222;
    color: #888;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed #555;
    font-size: 1.1rem;
}

/* Доставка и формы */
.delivery__info h3 {
    margin-top: 32px;
    margin-bottom: 12px;
    font-size: 1.2rem;
}

.delivery__info h3:first-child {
    margin-top: 0;
}

.delivery__info p {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* ===== РАСЧЕТ СТОИМОСТИ ===== */
.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin: 60px 0 40px;
}

.calc-block {
    background-color: #FFFFFF;
    padding: 32px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.calc-block__header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--color-border);
}

.calc-block__title {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--color-heading);
}

.calc-block__subtitle {
    font-size: 0.9rem;
    color: var(--color-text);
    opacity: 0.7;
    margin: 0;
}

.calc-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Поля калькулятора */
.calc-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.calc-field__label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-heading);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calc-field__input {
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    background-color: #FAFAFA;
    font-family: var(--font-body);
    font-size: 0.95rem;
    border-radius: 4px;
    transition: var(--transition);
    color: var(--color-heading);
    width: 100%;
}

.calc-field__input:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(60, 88, 82, 0.1);
}

.calc-field__input[readonly] {
    background-color: #F0F0EE;
    color: var(--color-text);
    cursor: default;
}

.calc-field__hint {
    font-size: 0.8rem;
    color: #888;
    font-style: italic;
    line-height: 1.4;
}

/* Табы категорий */
.calc-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.calc-tab {
    flex: 1;
    min-width: 100px;
    padding: 12px 16px;
    background-color: #FAFAFA;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.calc-tab:hover {
    border-color: var(--color-accent);
    background-color: #FFFFFF;
}

.calc-tab.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: #FFFFFF;
}

/* Поля размеров */
.calc-dimensions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.calc-dim {
    text-align: center;
}

/* Радио-кнопки */
.calc-radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.calc-radio {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    background-color: #FAFAFA;
}

.calc-radio:hover {
    border-color: var(--color-accent);
    background-color: #FFFFFF;
}

.calc-radio input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
    cursor: pointer;
    flex-shrink: 0;
}

.calc-radio input[type="radio"]:checked + .calc-radio__text {
    font-weight: 600;
    color: var(--color-accent);
}

.calc-radio:has(input:checked) {
    border-color: var(--color-accent);
    background-color: rgba(60, 88, 82, 0.03);
}

/* Заблокированные radio-кнопки */
.calc-radio input:disabled + .calc-radio__text {
    cursor: not-allowed;
}

.calc-radio:has(input:disabled) {
    cursor: not-allowed;
    opacity: 0.6;
}

.calc-radio:has(input:checked:disabled) {
    opacity: 1;
    border-color: var(--color-accent);
    background-color: rgba(60, 88, 82, 0.08);
}

.calc-radio__text {
    font-size: 0.95rem;
    color: var(--color-text);
    transition: var(--transition);
}

/* Результаты калькуляторов */
.calc-product-result,
.calc-delivery-result {
    margin-top: 24px;
    padding: 20px;
    background-color: var(--color-bg-gray);
    border-radius: 4px;
    border-left: 3px solid var(--color-accent);
}

.calc-product-result__row,
.calc-delivery-result__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    font-size: 0.95rem;
}

.calc-product-result__row:not(:last-child),
.calc-delivery-result__row:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.calc-product-result__value,
.calc-delivery-result__value {
    font-weight: 600;
    color: var(--color-accent);
    font-size: 1.05rem;
}

/* Итоговая сумма */
.calc-total {
    margin-top: 40px;
}

.calc-total__content {
    background: linear-gradient(135deg, #3C5852 0%, #2E4540 100%);
    padding: 48px;
    border-radius: 8px;
    color: #FFFFFF;
}

.calc-total__breakdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.calc-total__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.calc-total__label {
    font-size: 0.95rem;
    opacity: 0.9;
}

.calc-total__value {
    font-size: 1.5rem;
    font-weight: 600;
}

.calc-total__divider {
    font-size: 1.5rem;
    opacity: 0.7;
}

.calc-total__sum {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 4px;
    margin-bottom: 24px;
}

.calc-total__sum-label {
    font-size: 1.2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.calc-total__sum-value {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.calc-total__note {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-bottom: 24px;
    font-style: italic;
}

.calc-total .btn--primary {
    background-color: #FFFFFF;
    color: var(--color-accent);
    width: 100%;
}

.calc-total .btn--primary:hover {
    background-color: var(--color-bg-gray);
}

/* Адаптивность калькуляторов */
@media (max-width: 1199px) {
    .calculator-wrapper {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .calc-total__content {
        padding: 32px 24px;
    }
    .calc-total__sum-value {
        font-size: 2rem;
    }
}

@media (max-width: 767px) {
    .calc-block {
        padding: 24px 20px;
    }
    .calc-tabs {
        flex-direction: column;
    }
    .calc-tab {
        min-width: 100%;
    }
    .calc-dimensions {
        grid-template-columns: 1fr;
    }
    .calc-total__breakdown {
        flex-direction: column;
        gap: 16px;
    }
    .calc-total__divider {
        transform: rotate(90deg);
    }
    .calc-total__sum {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* ===== СТИЛИ ФОРМ ===== */
.form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form__group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form__label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-heading);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form__input {
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    background-color: #FFFFFF;
    font-family: var(--font-body);
    font-size: 0.95rem;
    border-radius: 4px;
    transition: var(--transition);
    color: var(--color-heading);
    width: 100%;
}

.form__input:focus {
    outline: none;
    border-color: var(--color-accent);
    background-color: #FFFFFF;
    box-shadow: 0 0 0 3px rgba(60, 88, 82, 0.1);
}

.form__input::placeholder {
    color: #999;
}

.form__input.error {
    border-color: #EE0505;
    background-color: #FFF5F5;
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
    font-family: var(--font-body);
}



.form__error {
    color: #EE0505;
    font-size: 0.85rem;
    margin-top: 4px;
    font-weight: 500;
}

.contact-form-wrapper,
.partner-form-wrapper {
    background-color: #FFFFFF;
    padding: 40px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.contact-form-wrapper h3,
.partner-form-wrapper h3 {
    margin-bottom: 32px;
    font-size: 1.5rem;
    color: var(--color-heading);
}

.form .btn {
    margin-top: 8px;
}

.form .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Адаптивность форм */
@media (max-width: 767px) {
    .contact-form-wrapper,
    .partner-form-wrapper {
        padding: 24px;
    }
    
    .form__input {
        padding: 12px 14px;
        font-size: 16px; /* Предотвращает зум на iOS */
    }
}

/* Партнеры */
.partners-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
    align-items: start;
}

.partners__list {
    list-style: none;
    padding: 40px;
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.partners__list li {
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1.05rem;
    line-height: 1.5;
}

.partners__list li:last-child {
    border-bottom: none;
}

.form__success {
    display: none;
    color: var(--color-accent);
    font-weight: 500;
    margin-top: 20px;
    line-height: 1.5;
    padding: 16px;
    background-color: rgba(60, 88, 82, 0.05);
    border-radius: 4px;
    border-left: 3px solid var(--color-accent);
}

.form__success.show {
    display: block;
}

@media (max-width: 1199px) {
    .partners-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Контакты и карта */
.contacts__info p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    line-height: 1.6;
}

.contacts__info a {
    color: var(--color-accent);
    font-weight: 500;
}

.contacts__info a:hover {
    text-decoration: underline;
}

.map-placeholder {
    width: 100%;
    height: 300px;
    background-color: #E8E8E8;
    margin-top: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    border-radius: 4px;
}

/* Подвал */
.footer {
    background-color: #1A1A1A;
    color: #CCCCCC;
    padding: 80px 0 30px;
}

.footer__container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.logo--light {
    color: #FFFFFF;
}

.footer__desc {
    margin-top: 20px;
    font-size: 0.95rem;
    max-width: 320px;
    line-height: 1.6;
}

.footer__col h4 {
    color: #FFFFFF;
    margin-bottom: 24px;
    font-size: 1.1rem;
}

.footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer__links a:hover {
    color: #FFFFFF;
}

.footer__bottom {
    border-top: 1px solid #333;
    padding-top: 30px;
    text-align: center;
    font-size: 0.9rem;
    color: #888;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.92);
    justify-content: center;
    align-items: center;
}

.lightbox__content {
    max-width: 90%;
    max-height: 90%;
    border: 2px solid #FFFFFF;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.lightbox__close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #FFFFFF;
    font-size: 48px;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox__close:hover {
    color: var(--color-accent);
}

/* Анимация появления */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== АДАПТИВНОСТЬ ===== */

/* Планшеты и средние экраны — header перестраивается */
@media (max-width: 1280px) {
    .nav__list {
        gap: 16px;
    }
    
    .nav__link {
        font-size: 0.82rem;
    }
    
    .header__phone {
        font-size: 0.88rem;
    }
    
    .header__container {
        gap: 24px;
    }
}

@media (max-width: 1100px) {
    .header__contacts {
        display: none;
    }
    
    .nav__list {
        gap: 14px;
    }
    
    .nav__link {
        font-size: 0.85rem;
    }
    
    .header__container {
        gap: 20px;
    }
}

@media (max-width: 1199px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .footer__container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 767px) {
    .section {
        padding: 80px 0;
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        height: 100vh;
        background-color: #FFFFFF;
        padding: 100px 32px;
        transition: var(--transition);
        box-shadow: -5px 0 20px rgba(0,0,0,0.1);
    }

    .nav.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: 28px;
    }

    .burger {
        display: flex;
        z-index: 1001;
    }

    .burger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    .burger.active span:nth-child(2) {
        opacity: 0;
    }
    .burger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

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

    .grid--2 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer__container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .btn {
        width: 100%;
    }
    
    .last-slab-banner {
        padding: 32px 24px;
        margin: 60px 0 40px;
    }
    
    .last-slab-banner h3 {
        font-size: 1.5rem;
    }
}

/* ===== АВТОРСКИЕ ПРОСТРАНСТВА ===== */
.turnkey-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin: 60px 0 80px;
    padding: 48px;
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.turnkey-intro__text h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--color-heading);
}

.turnkey-intro__text p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-text);
}

.turnkey-intro__features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background-color: var(--color-bg-gray);
    border-radius: 4px;
    transition: var(--transition);
}

.feature:hover {
    background-color: #FFFFFF;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transform: translateX(8px);
}

.feature__number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    min-width: 50px;
}

.feature__text {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-heading);
}

/* Горизонтальные карточки товаров */
.turnkey-products {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin: 80px 0;
}

.turnkey-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition);
}

.turnkey-card:hover {
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.turnkey-card:nth-child(even) {
    direction: rtl;
}

.turnkey-card:nth-child(even) > * {
    direction: ltr;
}

.turnkey-card__image {
    width: 100%;
    height: 100%;
    min-height: 400px;
    background-color: var(--color-border);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.turnkey-card__image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(60, 88, 82, 0.1) 100%);
    transition: var(--transition);
}

.turnkey-card:hover .turnkey-card__image::after {
    background: linear-gradient(135deg, transparent 0%, rgba(60, 88, 82, 0.2) 100%);
}

.turnkey-card__content {
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.turnkey-card__title {
    font-size: 1.8rem;
    margin-bottom: 24px;
    color: var(--color-heading);
    line-height: 1.3;
}

.turnkey-card__description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 32px;
}

.turnkey-card__process {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background-color: var(--color-bg-gray);
    border-radius: 4px;
    border-left: 3px solid var(--color-accent);
}

.process-step__number {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-accent);
    min-width: 30px;
}

.process-step__text {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-text);
}

.turnkey-card__features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.turnkey-card__feature {
    padding: 8px 16px;
    background-color: var(--color-accent);
    color: #FFFFFF;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 20px;
    white-space: nowrap;
}

/* Конкурентное преимущество */
.turnkey-advantage {
    margin: 80px 0;
    padding: 60px;
    background: linear-gradient(135deg, #3C5852 0%, #2E4540 100%);
    border-radius: 4px;
    color: #FFFFFF;
}

.turnkey-advantage__content h3 {
    font-size: 2rem;
    margin-bottom: 24px;
    color: #FFFFFF;
}

.turnkey-advantage__content > p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 32px;
    opacity: 0.95;
}

.turnkey-advantage__list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.turnkey-advantage__list li {
    padding: 16px 20px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 4px;
    font-size: 1rem;
    line-height: 1.5;
    position: relative;
    padding-left: 48px;
}

.turnkey-advantage__list li::before {
    content: '✓';
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    font-weight: 700;
    color: #FFFFFF;
}

.turnkey-advantage__highlight {
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.6;
    padding: 24px;
    background-color: rgba(255,255,255,0.15);
    border-radius: 4px;
    border-left: 4px solid #FFFFFF;
}

/* Адаптивность для авторских пространств */
@media (max-width: 1199px) {
    .turnkey-intro {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 32px;
    }
    
    .turnkey-card {
        grid-template-columns: 1fr;
    }
    
    .turnkey-card:nth-child(even) {
        direction: ltr;
    }
    
    .turnkey-card__image {
        min-height: 300px;
    }
    
    .turnkey-advantage__list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    .turnkey-intro {
        padding: 24px;
        margin: 40px 0 60px;
    }
    
    .turnkey-card__content {
        padding: 32px 24px;
    }
    
    .turnkey-card__title {
        font-size: 1.5rem;
    }
    
    .turnkey-advantage {
        padding: 32px 24px;
        margin: 60px 0;
    }
    
    .turnkey-advantage__content h3 {
        font-size: 1.5rem;
    }

    /* Акцентная ссылка в навигации */
.nav__link--accent {
    color: var(--color-accent);
    font-weight: 600;
    position: relative;
}

.nav__link--accent::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.nav__link--accent:hover::after {
    transform: scaleX(1);
}

}