/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333333;
    background-color: #F8F9FA;
}

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

/* Color Variables */
:root {
    --primary-color: #0A2342;
    --accent-color: #C09E6B;
    --background-color: #F8F9FA;
    --content-bg: #FFFFFF;
    --text-primary: #333333;
    --text-secondary: #6C757D;
    --shadow-light: 0 4px 12px rgba(0,0,0,0.05);
    --shadow-medium: 0 8px 25px rgba(0,0,0,0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
    color: var(--content-bg);
}

h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
}

h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

p {
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

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

.btn--primary:hover {
    background-color: #103561;
    /*transform: translateY(-2px);*/
    box-shadow: var(--shadow-medium);
}

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

.btn--secondary:hover {
    background-color: var(--accent-color);
    color: var(--content-bg);
}

.btn--full {
    width: 100%;
}

/* Navigation */
.nav-header {
    /*position: fixed;*/
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--primary-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    color: var(--content-bg);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-brand__icon {
    color: var(--accent-color);
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu__item {
    margin-left: 2rem;
}

.nav-menu__link {
    color: var(--content-bg);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-menu__link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--accent-color);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--content-bg);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(10, 35, 66, 0.7), rgba(10, 35, 66, 0.7)),
                url('../images/professional_business_team_outdoor_group_portrait.jpg');
    background-size: cover;
    background-position: center;
    display: grid;
    align-items: center;
    position: relative;
}

.hero__content {
    text-align: center;
    color: var(--content-bg);
    z-index: 2;
}

.hero__title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero__subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Section Styles */
.section {
    padding: 5rem 0;
}

.section--alt {
    background-color: var(--content-bg);
}

.section--contact {
    background-color: var(--primary-color);
    color: var(--content-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header__title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    /*transform: translateX(-50%);*/
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.section-header__subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--content-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    /*transform: translateY(-5px);*/
    box-shadow: var(--shadow-medium);
    border-top: 3px solid var(--accent-color);
}

.service-card__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.service-card__icon i {
    font-size: 2rem;
    color: var(--content-bg);
}

.service-card__title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card__description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Advantages Grid */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--background-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.advantage-item:hover {
    background: var(--content-bg);
    box-shadow: var(--shadow-light);
}

.advantage-item__icon {
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.advantage-item__icon i {
    font-size: 1.5rem;
    color: var(--content-bg);
}

.advantage-item__title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.advantage-item__description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content__text .section-header {
    text-align: left;
    margin-bottom: 2rem;
}

.about-description p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    margin-top: 2rem;
}

.about-stats__item {
    text-align: center;
    padding: 1.5rem;
    background: var(--content-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.about-stats__number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.about-stats__label {
    color: var(--text-secondary);
    font-weight: 500;
}

.about-content__image {
    position: relative;
}

.about-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background: var(--content-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.product-card:hover {
    /*transform: translateY(-5px);*/
    box-shadow: var(--shadow-medium);
}

.product-card__image {
    height: 200px;
    overflow: hidden;
}

.product-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-card__image img {
    /*transform: scale(1.05);*/
}

.product-card__content {
    padding: 1.5rem;
}

.product-card__title {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-card__description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* News Grid */
.news-grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.news-card {
    background: var(--content-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    display: flex;
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: var(--shadow-medium);
}

.news-card__date {
    background: var(--accent-color);
    color: var(--content-bg);
    padding: 1.5rem 1rem;
    text-align: center;
    min-width: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-card__day {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.news-card__month {
    font-size: 0.875rem;
    font-weight: 500;
}

.news-card__content {
    padding: 1.5rem;
    flex: 1;
}

.news-card__title {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.news-card__excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.news-card__category {
    display: inline-block;
    background: var(--background-color);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--background-color);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-item__question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-item__question:hover {
    background-color: var(--content-bg);
}

.faq-item__icon {
    transition: var(--transition);
}

.faq-item.active .faq-item__icon {
    /*transform: rotate(180deg);*/
}

.faq-item__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-item__answer {
    max-height: 200px;
}

.faq-item__answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Testimonials */
.testimonials-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-item {
    display: none;
    background: var(--content-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    text-align: center;
}

.testimonial-item.active {
    display: block;
}

.testimonial-item__quote {
    margin-bottom: 2rem;
}

.testimonial-item__quote i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.testimonial-item__quote p {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.8;
}

.testimonial-item__author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.testimonial-item__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-item__name {
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.testimonial-item__position {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.testimonial-control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.testimonial-control.active {
    background: var(--accent-color);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info__title {
    color: var(--content-bg);
    margin-bottom: 1rem;
}

.contact-info__subtitle {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item__icon {
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item__icon i {
    color: var(--content-bg);
    font-size: 1.25rem;
}

.contact-item__title {
    color: var(--content-bg);
    margin-bottom: 0.5rem;
}

.contact-item__text {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.25rem;
}

/* Form Styles */
.form {
    background: var(--content-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--content-bg);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(192, 158, 107, 0.1);
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--content-bg);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-brand__icon {
    color: var(--accent-color);
    margin-right: 10px;
    font-size: 1.8rem;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-section__title {
    margin-bottom: 1rem;
    color: var(--content-bg);
}

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

.footer-links__item {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    line-height: 2;
    transition: var(--transition);
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.footer-contact i {
    color: var(--accent-color);
    margin-right: 10px;
    width: 16px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.8);
}

.footer-links-bottom {
    display: flex;
    gap: 2rem;
}

.footer-links-bottom__item {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: var(--content-bg);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-color);
    /*transform: translateY(-3px);*/
}

/* Responsive Design */
@media (max-width: 992px) {
    .container {
        padding: 0 15px;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .section-header__title {
        font-size: 2rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--primary-color);
        flex-direction: column;
        justify-content: start;
        align-items: center;
        padding-top: 2rem;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu__item {
        margin: 1rem 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__subtitle {
        font-size: 1.125rem;
    }
    
    .hero__actions {
        flex-direction: column;
        align-items: center;
    }
    
    .services-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-item {
        flex-direction: column;
        text-align: center;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-item {
        padding: 2rem 1rem;
    }
    
    .testimonial-item__author {
        flex-direction: column;
    }
    
    .news-card {
        flex-direction: column;
    }
    
    .news-card__date {
        flex-direction: row;
        justify-content: center;
        gap: 1rem;
        min-width: auto;
        padding: 1rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-links-bottom {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 3rem 0;
    }
    
    .hero__title {
        font-size: 1.75rem;
    }
    
    .section-header__title {
        font-size: 1.75rem;
    }
    
    .service-card,
    .advantage-item {
        padding: 1.5rem;
    }
    
    .testimonial-item {
        padding: 1.5rem 1rem;
    }
    
    .form {
        padding: 1.5rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    /*transform: translateY(30px);*/
    transition: all 0.6s ease;
}

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

.slide-in-left {
    opacity: 0;
    /*transform: translateX(-50px);*/
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    /*transform: translateX(0);*/
}

.slide-in-right {
    opacity: 0;
    /*transform: translateX(50px);*/
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    /*transform: translateX(0);*/
}