/* Base styles */
:root {
    --primary: #2a7ae2;
    --primary-dark: #1a5bbf;
    --secondary: #f5f7fa;
    --text: #333;
    --light: #fff;
    --gray: #f0f0f0;
    --dark-gray: #777;
    --border: #ddd;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--light);
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary);
    color: var(--light);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn--small {
    padding: 8px 16px;
}

.btn--block {
    display: block;
    width: 100%;
}

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

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

.section {
    padding: 60px 0;
}

.section__title {
    font-size: 32px;
    margin-bottom: 15px;
    text-align: center;
}

.section__subtitle {
    font-size: 18px;
    color: var(--dark-gray);
    text-align: center;
    margin-bottom: 40px;
}

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

/* Header styles */
.header {
    background: var(--light);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header__top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo img {
    height: 60px;
}

.header__contacts {
    display: flex;
    align-items: center;
    gap: 20px;
}

.phone {
    font-weight: 700;
    font-size: 18px;
}

.nav {
    background: var(--secondary);
    padding: 10px 0;
}

.nav__list {
    display: flex;
    list-style: none;
    justify-content: center;
    gap: 30px;
}

.nav__list a {
    font-weight: 600;
    padding: 5px 0;
    position: relative;
}

.nav__list a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

.nav__list a:hover:after {
    width: 100%;
}

.has-submenu {
    position: relative;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--light);
    box-shadow: var(--shadow);
    border-radius: 4px;
    padding: 10px 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s;
    z-index: 100;
}

.submenu li {
    padding: 8px 20px;
}

.submenu a {
    display: block;
    white-space: nowrap;
}

/* Hero section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../img/hero-bg.jpg') center/cover;
    color: var(--light);
    padding: 100px 0;
    text-align: center;
    position: relative;
}

.hero__title {
    font-size: 42px;
    margin-bottom: 20px;
}

.hero__subtitle {
    font-size: 24px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero__advantages {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.advantage {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    padding: 15px 25px;
    border-radius: 50px;
}

.hero__form {
    background: var(--light);
    padding: 30px;
    border-radius: 8px;
    max-width: 400px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}

.form__title {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text);
    text-align: center;
}

.form__group {
    margin-bottom: 20px;
}

.form__input,
.form__select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 16px;
}

.form__privacy {
    font-size: 12px;
    margin-top: 15px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.form__privacy input {
    flex-shrink: 0;
}

/* Product sections - UPDATED */
.types__grid,
.catalog__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.type-card,
.product-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    margin-bottom: 30px;
}

.type-card:hover,
.product-card:hover {
    transform: translateY(-5px);
}

.type-card__img,
.product-card__img {
    height: 200px;
    overflow: hidden;
}

.type-card__img img,
.product-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.type-card:hover .type-card__img img,
.product-card:hover .product-card__img img {
    transform: scale(1.05);
}

.type-card__content,
.product-card__content {
    padding: 25px 20px;
}

.type-card__title,
.product-card__title {
    font-size: 20px;
    margin-bottom: 15px;
    line-height: 1.3;
}

.type-card__features,
.product-card__specs {
    margin-bottom: 20px;
    padding-left: 0;
}

.type-card__features li,
.product-card__specs li {
    padding: 8px 15px;
    position: relative;
    list-style-type: none;
    text-align: left;
    margin-bottom: 5px;
}

.type-card__features li:before,
.product-card__specs li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.type-card__price,
.product-card__price {
    font-size: 24px;
    font-weight: 700;
    margin: 20px 0;
    color: var(--primary);
    display: block;
}

.product-card__more {
    display: block;
    text-align: center;
    color: var(--primary);
    font-weight: 600;
    margin-top: 15px;
    padding: 8px 0;
}

.catalog__filters {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter {
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter__select {
    padding: 8px 15px;
    border: 1px solid var(--border);
    border-radius: 4px;
}

/* Advantages section */
.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--secondary);
    border-radius: 8px;
}

.advantage-card__icon {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 15px;
}

.advantage-card__title {
    font-size: 18px;
    margin-bottom: 10px;
}

.advantage-card__text {
    color: var(--dark-gray);
    font-size: 14px;
}

/* Portfolio section */
.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.portfolio-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    height: 250px;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-item__overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 20px;
    color: var(--light);
    transform: translateY(100%);
    transition: transform 0.3s;
}

.portfolio-item:hover .portfolio-item__overlay {
    transform: translateY(0);
}

/* CTA section */
.cta {
    background: var(--primary);
    color: var(--light);
    text-align: center;
}

.cta__content {
    max-width: 600px;
    margin: 0 auto;
}

.cta__title {
    font-size: 32px;
    margin-bottom: 15px;
}

.cta__text {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta__form .form__input {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: var(--light);
}

.cta__form .form__input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.cta__form .btn {
    background: var(--light);
    color: var(--primary);
}

.cta__form .btn:hover {
    background: rgba(255, 255, 255, 0.9);
}

.cta__form .form__privacy label {
    opacity: 0.8;
}

/* Footer styles */
.footer {
    background: #222;
    color: var(--light);
    padding: 60px 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer__title {
    font-size: 20px;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.footer__title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--primary);
}

.footer__about {
    opacity: 0.8;
    line-height: 1.7;
}

.footer__menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer__menu a {
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer__menu a:hover {
    opacity: 1;
}

.footer__contacts {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer__contacts li {
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0.8;
}

.footer__contacts img {
    opacity: 0.7;
}

.social {
    display: flex;
    gap: 15px;
}

.social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s;
}

.social__link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer__bottom {
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer__copyright {
    opacity: 0.7;
}

.footer__link {
    opacity: 0.7;
    transition: opacity 0.3s;
}

.footer__link:hover {
    opacity: 1;
}

/* Modal window */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 2000;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal__content {
    background: var(--light);
    border-radius: 8px;
    padding: 30px;
    max-width: 500px;
    width: 100%;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.3s;
}

.modal.active .modal__content {
    transform: translateY(0);
}

.modal__close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--dark-gray);
}

.modal__title {
    font-size: 24px;
    margin-bottom: 20px;
    text-align: center;
}

/* Responsive styles - UPDATED */
@media (max-width: 992px) {
    .section {
        padding: 40px 0;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    .hero__title {
        font-size: 36px;
    }
    
    .hero__subtitle {
        font-size: 20px;
    }
    
    .section__title {
        font-size: 28px;
    }
    
    .section__subtitle {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .header__top {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav__list {
        gap: 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero__title {
        font-size: 30px;
    }
    
    .hero__subtitle {
        font-size: 18px;
    }
    
    .hero__advantages {
        gap: 15px;
    }
    
    .advantage {
        padding: 10px 15px;
    }
    
    .section__title {
        font-size: 24px;
    }
    
    .footer__grid {
        gap: 30px;
    }
}

@media (max-width: 576px) {
    .nav__list {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
    
    .has-submenu .submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        display: none;
        background: var(--secondary);
        border-radius: 4px;
        margin-top: 5px;
    }
    
    .has-submenu.active .submenu {
        display: block;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .hero__title {
        font-size: 26px;
    }
    
    .hero__subtitle {
        font-size: 16px;
    }
    
    .section {
        padding: 30px 0;
    }
    
    .types__grid,
    .catalog__grid {
        grid-template-columns: 1fr;
    }
    
    .type-card__content,
    .product-card__content {
        padding: 20px 15px;
    }
    
    .type-card__title,
    .product-card__title {
        font-size: 18px;
        margin-bottom: 10px;
    }
    
    .type-card__price,
    .product-card__price {
        font-size: 20px;
        margin: 15px 0;
    }
    
    .catalog__filters {
        flex-direction: column;
        align-items: center;
    }
    
    .filter {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
    }
    
    .modal__content {
        padding: 30px 20px;
        margin: 0 15px;
    }
    
    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }
}