/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    will-change: transform, box-shadow; /* Performance optimization */
}

@media (max-width: 640px) {
    .site-header {
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }
    
    .main-header-bar {
        padding: 0.625rem 0;
    }
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
    background-color: rgba(255, 255, 255, 0.99);
}

.main-header-bar {
    padding: 1rem 0;
}

.main-header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

@media (max-width: 640px) {
    .main-header-container {
        gap: 1rem;
    }
    
    /* Reorder elements on mobile: logo left, menu toggle right */
    .site-branding {
        order: 1;
    }
    
    .menu-toggle {
        order: 3;
        margin-left: auto;
    }
    
    .main-navigation {
        order: 2;
    }
}

.site-branding {
    flex-shrink: 0;
}

.site-logo img,
.custom-logo {
    max-width: 70px;
    height: auto;
    display: block;
    transition: var(--transition);
}

.site-logo:hover img {
    transform: scale(1.05);
}

/* Navigation */
.main-navigation {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.main-header-menu {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.main-header-menu .menu-item {
    position: relative;
}

.main-header-menu .menu-link {
    display: block;
    padding: 0.75rem 1.25rem;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.main-header-menu .menu-link:hover {
    color: var(--primary-color);
    background-color: rgba(22, 17, 115, 0.05);
}

.main-header-menu .menu-item.active > .menu-link {
    color: var(--primary-color);
    background-color: rgba(22, 17, 115, 0.1);
    font-weight: 600;
}

/* Submenu */
.menu-item-has-children {
    position: relative;
}

.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    list-style: none;
    padding: 0.5rem 0;
    margin: 0.5rem 0 0 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.menu-item-has-children:hover .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu .menu-link {
    padding: 0.75rem 1.5rem;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.sub-menu .menu-link:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

.submenu-toggle {
    display: none;
}

/* Header CTA Button */
.header-cta .btn {
    margin-left: 0.5rem;
    white-space: nowrap;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1.5rem;
    transition: var(--transition);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

.menu-toggle:hover {
    background-color: var(--primary-color);
    color: var(--text-white);
}

.menu-toggle-icon {
    display: block;
    line-height: 1;
    font-size: 1.5rem;
}

@media (max-width: 640px) {
    .menu-toggle {
        padding: 0.5rem;
        font-size: 1.25rem;
    }
    
    .menu-toggle-icon {
        font-size: 1.25rem;
    }
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-family: var(--font-button);
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
    color: var(--text-white);
    background-color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

.btn:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--text-white);
}

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

.btn-sm {
    padding: 0.75rem 1.75rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 1.25rem 3rem;
    font-size: 1.0625rem;
}

/* ===== Hero Section ===== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 0;
}

.hero-section-home {
    margin-top: -90px;
}

@media (max-width: 640px) {
    .hero-section-home {
        margin-top: -70px;
    }
}

.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-slide.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--hero-overlay);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--text-white);
    padding: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.hero-content h1 {
    color: var(--text-white);
    font-size: clamp(2.75rem, 6vw, 4.5rem);
    margin-bottom: var(--spacing-lg);
    text-shadow: 2px 4px 12px rgba(0, 0, 0, 0.4);
    animation: fadeInUp 0.8s ease-out;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-content p {
    font-size: clamp(1.125rem, 2.5vw, 1.625rem);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 1px 2px 6px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease-out 0.2s both;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Services Grid ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

@media (max-width: 640px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }
}

.service-card {
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-light);
}

.service-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.service-card-image {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
}

.service-card-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.625rem;
    transition: var(--transition);
}

.service-card:hover h3 {
    color: var(--primary-dark);
}

.service-card p {
    flex: 1;
    margin-bottom: var(--spacing-lg);
    line-height: 1.75;
    color: var(--text-light);
}

.service-card-price {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--price-color);
    margin: var(--spacing-md) 0;
    line-height: 1.2;
}

.service-card .btn {
    margin-top: auto;
    align-self: flex-start;
}

/* Service card with border highlight (for featured/popular) */
.service-card.featured {
    border: 2px solid var(--primary-color);
    position: relative;
}

.service-card.featured::after {
    content: 'ХИТ';
    position: absolute;
    top: -12px;
    right: var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8125rem;
    font-weight: 700;
    border-radius: var(--border-radius);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }
}

.feature-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-fast);
    border: 1px solid var(--border-light);
}

.feature-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-lg);
    display: block;
    line-height: 1;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.375rem;
    position: relative;
    z-index: 1;
}

.feature-item p {
    color: var(--text-light);
    margin-bottom: 0;
    position: relative;
    z-index: 1;
    line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
    background-color: var(--primary-color);
    color: var(--text-white);
    padding: var(--spacing-3xl) 0;
}

.cta-section .section-content {
    color: var(--text-white);
}

.cta-section h2,
.cta-section h3 {
    color: var(--text-white);
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
}

.cta-section .btn {
    background-color: var(--text-white);
    color: var(--primary-color);
    border-color: var(--text-white);
}

.cta-section .btn:hover {
    background-color: var(--bg-light);
    border-color: var(--bg-light);
    color: var(--primary-dark);
}

/* ===== Image Gallery ===== */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

@media (max-width: 640px) {
    .image-gallery {
        gap: var(--spacing-sm);
        margin-top: var(--spacing-lg);
    }
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    aspect-ratio: 4 / 3;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    border: 1px solid var(--border-light);
}

.gallery-item:hover {
    box-shadow: var(--shadow-md);
}

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

/* ===== Forms ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

@media (max-width: 640px) {
.form-group {
        margin-bottom: var(--spacing-md);
    }
}

.contact-form,
.question-form {
    max-width: 650px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.contact-form h3,
.question-form h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
    font-size: 1.875rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-white);
    color: var(--text-dark);
    line-height: 1.5;
    -webkit-appearance: none; /* Remove iOS styling */
    appearance: none;
    touch-action: manipulation;
}

input::placeholder,
textarea::placeholder {
    color: var(--text-lighter);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(22, 17, 115, 0.1);
}

textarea {
    min-height: 160px;
    resize: vertical;
    line-height: 1.6;
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.9375rem;
}

.error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    display: block;
    font-weight: 500;
}

/* ===== Footer ===== */
.site-footer {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-section h3,
.footer-section h4 {
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
    font-size: 1.375rem;
    font-weight: 600;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.footer-logo img {
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
    padding-left: 0;
}

.footer-section ul li::before {
    content: none;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.85);
    transition: var(--transition);
    display: inline-block;
    line-height: 1.6;
}

.footer-section a:hover {
    color: var(--text-white);
}

/* Social Icons */
.social-icons {
    display: flex;
    gap: 1rem;
    list-style: none;
    padding: 0;
    margin: 1rem 0 0 0;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--text-white);
    transition: var(--transition);
    text-decoration: none;
    padding-left: 0;
}

.social-icons a:hover {
    background-color: var(--primary-color);
    padding-left: 0;
}

.social-icons a i {
    font-size: 1.25rem;
}

.social-icons a span {
    font-size: 0.875rem;
    font-weight: 500;
}

/* Contact page styling */
.contact-info-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.contact-info-item {
    padding: var(--spacing-xl);
    background: var(--bg-lighter);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
}

.contact-page-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.contact-page-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-info-item h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.contact-info-item p {
    font-size: 1.125rem;
    color: var(--text-dark);
    margin: 0;
}

/* Social icons inline (not in list) */
.social-icons-inline {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.social-icon-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background-color: var(--bg-white);
    border-radius: 50%;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.social-icon-link:hover {
    background-color: var(--primary-color);
    color: var(--text-white);
}

.social-icon-link i {
    font-size: 1.5rem;
}

.contact-form-section {
    padding: var(--spacing-xl);
    background: var(--bg-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.contact-form-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

/* Map container */
.map-container {
    width: 100%;
    height: 450px;
    margin-top: 2rem;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

@media (max-width: 640px) {
    .map-container {
        height: 300px;
        margin-top: var(--spacing-md);
        border-radius: var(--border-radius);
    }
}

/* Footer Copyright */
.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    margin-top: var(--spacing-xl);
}

.footer-copyright p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    font-size: 0.9375rem;
}

/* ===== Message Box ===== */
#message-box {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 1rem 1.5rem;
    background-color: var(--accent-color);
    color: var(--text-white);
    border-radius: var(--border-radius);
    z-index: 10000;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease-out;
    max-width: 400px;
}

@media (max-width: 640px) {
    #message-box {
        top: 80px;
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        max-width: none;
        padding: var(--spacing-md);
        font-size: 0.875rem;
    }
}

#message-box.success {
    background-color: #28a745;
}

#message-box.error {
    background-color: #dc3545;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== FAQ Section ===== */
.faq-section {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}

.faq-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-heading);
}

.faq-item p {
    color: var(--text-dark);
    line-height: 1.7;
    margin: 0;
}

.faq-item:last-child {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .faq-item {
        padding: var(--spacing-sm);
    }
    
    .faq-item h3 {
        font-size: 1.1rem;
    }
}