/* Global Styles */
:root {
    --primary-color: #4a6fa5;
    --secondary-color: #6e9cd2;
    --accent-color: #f4b942;
    --text-color: #333333;
    --text-light: #666666;
    --background-light: #f9f9f9;
    --white: #ffffff;
    --border-color: #e1e1e1;
    --success-color: #4caf50;
    --error-color: #f44336;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
}

section {
    padding: 80px 0;
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

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

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

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

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

.btn-tertiary {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    z-index: 1000;
    padding: 15px 0;
}

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

.logo a {
    display: flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.5rem;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav ul li a {
    font-weight: 600;
    color: var(--text-color);
}

.nav ul li a:hover {
    color: var(--primary-color);
}


/* Активное состояние */
.nav.active {
    display: flex;
}


.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 30px;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding-top: 150px;
    padding-bottom: 80px;
    background-color: var(--background-light);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-light);
}

.hero-image img {
    max-width: 100%;
    height: auto;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image img {
    max-width: 100%;
    border-radius: 10px;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.about-text p {
    margin-bottom: 20px;
}

.about-list {
    padding-left: 20px;
}

.about-list li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.about-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 15px;
    height: 15px;
    background-color: var(--accent-color);
    border-radius: 50%;
}

/* Services Section */
.services {
    background-color: var(--background-light);
}

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

.service-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-icon {
    background-color: var(--background-light);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.service-icon img {
    width: 40px;
    height: 40px;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Blog Section */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.blog-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
}

.blog-image {
    height: 200px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--background-light);
}

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

.blog-content {
    padding: 20px;
}

.blog-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.blog-content p {
    margin-bottom: 15px;
    color: var(--text-light);
}

.read-more {
    font-weight: 600;
    color: var(--primary-color);
    display: inline-block;
    padding-bottom: 3px;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.read-more:hover {
    border-bottom-color: var(--primary-color);
}

/* Testimonials Section */
.testimonials {
    background-color: var(--background-light);
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.testimonial-icon {
    width: 60px;
    height: 60px;
    background-color: var(--background-light);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.testimonial-icon img {
    width: 30px;
    height: 30px;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 20px;
    color: var(--text-color);
}

.testimonial-author .author-name {
    font-weight: 600;
    margin-bottom: 5px;
}

.testimonial-author .author-company {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    background-color: var(--background-light);
    border-radius: 10px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

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

.contact-image img {
    max-width: 200px;
}

.contact-details h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-details p {
    margin-bottom: 10px;
}

.social-media {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--white);
    transition: var(--transition);
}

.social-icon:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

.social-icon svg {
    width: 20px;
    height: 20px;
}

.contact-form {
    background-color: var(--white);
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
}

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

.form-group.checkbox input {
    width: 20px;
    height: 20px;
    margin-top: 3px;
}

.form-group.checkbox label {
    margin-bottom: 0;
    font-weight: normal;
    font-size: 0.9rem;
}

/* Footer Styles */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo img {
    height: 60px;
    margin-bottom: 10px;
    filter: brightness(0) invert(1);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-column h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--accent-color);
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a,
.footer-column p {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
    .hero .container,
    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
    }

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

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-logo {
        align-items: center;
        text-align: center;
    }
}

@media screen and (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        padding-top: 120px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .services-grid,
    .blog-grid,
    .testimonials-slider {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media screen and (max-width: 576px) {
    .section-header {
        margin-bottom: 30px;
    }

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

    .contact-form,
    .contact-info {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .nav {
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background-color: #fff;
        display: none;
        flex-direction: column;
        gap: 20px;
        padding: 20px;
        border-top: 1px solid #ddd;
    }

    .nav.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .container {
        justify-content: space-between;
    }

    .logo span {
        display: none;
    }
}

/* Анимация для открытия/закрытия меню */
.nav.active {
    animation: slideIn 0.3s ease-in-out;
}

@keyframes slideIn {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}