.features {
    padding: var(--space-4xl) var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--primary), transparent);
    animation: rotate 4s linear infinite;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.feature-card:hover::before {
    opacity: 0.1;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.feature-card:hover {
    transform: translateY(-10px);
    background: var(--bg-glass-strong);
    box-shadow: var(--shadow-glass);
    border-color: var(--border-strong);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    filter: drop-shadow(0 0 10px var(--primary));
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== SERVICES SECTION ===== */
.services {
    padding: var(--space-4xl) var(--space-xl);
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-3xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-2xl);
}

.service-card {
    background: var(--bg-glass);
    backdrop-filter: blur(30px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-15px) rotateX(5deg);
    background: var(--bg-glass-strong);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    border-color: var(--border-strong);
}

.service-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-neon);
}

.service-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.service-price {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: var(--space-md);
    text-shadow: 0 0 10px var(--primary);
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-size: 1rem;
    text-align: center;
}

.service-features {
    list-style: none;
    margin-bottom: var(--space-xl);
}

.service-features li {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    position: relative;
    padding-left: 2rem;
    font-size: 0.95rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    font-size: 1.1rem;
}

.select-service {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    width: 100%;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.select-service:hover {
    background: var(--primary);
    color: var(--bg-dark);
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 245, 255, 0.4);
}

/* ===== MODAL STYLES ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-modal);
    backdrop-filter: blur(15px);
    z-index: 2000;
    animation: fadeIn var(--transition-normal) ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-glass-strong);
    backdrop-filter: blur(40px);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    width: 95%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.4s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -60%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.modal-title {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.8rem;
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: 50%;
    transition: all var(--transition-normal);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
    transform: rotate(90deg);
}

/* ===== FORM STYLES ===== */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-input, .form-textarea {
    width: 100%;
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-normal);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.1);
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.checkbox-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary);
}

.checkbox-item input[type="checkbox"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 4px;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.checkbox-item input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-item input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.submit-btn {
    width: 100%;
    padding: var(--space-lg);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 245, 255, 0.4);
}

/* ===== FOOTER STYLES ===== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) var(--space-xl) var(--space-xl);
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-section h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.footer-section p,
.footer-section li {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

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

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-normal);
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.equipment-logos {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
    flex-wrap: wrap;
}

.equipment-logo {
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-weight: 700;
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.equipment-logo:hover {
    background: var(--bg-glass-strong);
    border-color: var(--primary);
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: var(--space-xl);
    text-align: center;
}

.footer-legal {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* ===== ДОПОЛНИТЕЛЬНАЯ RESPONSIVE ЛОГИКА ===== */
@media (max-width: 768px) {
    .services {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 98%;
        padding: var(--space-lg);
    }
    
    .service-card {
        padding: var(--space-lg);
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .service-price {
        font-size: 1.8rem;
    }
}

/* ===== АНИМАЦИИ ДЛЯ УЛУЧШЕНИЯ UX ===== */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .feature-card {
        animation: fadeInUp 0.6s ease-out;
    }
    
    .service-card:nth-child(even) {
        animation-delay: 0.1s;
    }
    
    .service-card:nth-child(3n) {
        animation-delay: 0.2s;
    }
}

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

/* ===== КАСТОМНЫЙ СКРОЛЛБАР ДЛЯ МОДАЛЬНОГО ОКНА ===== */
.modal-content::-webkit-scrollbar {
    width: 8px;
}

.modal-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin: 10px 0;
}

.modal-content::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-content::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
    box-shadow: 0 0 10px rgba(0, 245, 255, 0.3);
    transform: scaleX(1.2);
}

.modal-content::-webkit-scrollbar-thumb:active {
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.modal-content {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) rgba(255, 255, 255, 0.05);
}

/* ===== УЛУЧШЕНИЕ МОДАЛЬНОГО ОКНА ===== */
.modal-content {
    scroll-behavior: smooth;
    padding-right: calc(var(--space-2xl) + 8px);
    background-image: 
        linear-gradient(to bottom, var(--bg-glass-strong) 0%, transparent 30px),
        linear-gradient(to top, var(--bg-glass-strong) 0%, transparent 30px);
    background-repeat: no-repeat;
    background-size: 100% 30px, 100% 30px;
    background-position: 0 0, 0 100%;
    background-attachment: local, local;
}

.modal-content::before {
    content: '';
    position: sticky;
    top: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--primary) 20%, 
        var(--secondary) 50%, 
        var(--accent) 80%, 
        transparent 100%);
    margin: 0 calc(-1 * var(--space-2xl)) var(--space-md);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 10;
}

.modal-content.scrolled::before {
    opacity: 1;
}

@media (max-width: 480px) {
    .modal-content {
        padding-right: calc(var(--space-lg) + 6px);
        max-height: 95vh;
    }
    
    .modal-content::-webkit-scrollbar {
        width: 6px;
    }
}

@media (max-width: 320px) {
    .modal-content {
        padding-right: var(--space-lg);
    }
    
    .modal-content::-webkit-scrollbar {
        width: 3px;
    }
    
    .modal-content::-webkit-scrollbar-track {
        background: transparent;
    }
}

.modal-content::-webkit-scrollbar-thumb {
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease, background 0.3s ease;
}

.modal-content:hover::-webkit-scrollbar-thumb {
    opacity: 1;
}

.modal-content:focus-within::-webkit-scrollbar-thumb {
    opacity: 1;
}

/* ===== СТИЛИ ДЛЯ БЛОКА "ДО И ПОСЛЕ" ===== */
.before-after {
    padding: var(--space-4xl) var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.before-after-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.before-after-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    aspect-ratio: 16 / 10;
    background-color: var(--bg-darker);
}

.before-after-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glass);
}

.before-after-card img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: clip-path 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.before-after-card img:first-child {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.before-after-card img:last-child {
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
}

.before-after-card:hover img:last-child {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.before-after-card::before, 
.before-after-card::after {
    position: absolute;
    top: 10px;
    padding: var(--space-xs) var(--space-sm);
    background-color: rgba(0,0,0,0.7);
    color: white;
    font-weight: 600;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
    z-index: 2;
}

.before-after-card::before {
    content: 'ПОСЛЕ';
    left: 10px;
}

.before-after-card::after {
    content: 'ДО';
    right: 10px;
}

.section-note {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    margin-top: var(--space-xl);
}

 .quantity-wrapper {
            margin-top: var(--space-sm);
            transition: opacity 0.3s ease, max-height 0.3s ease-out, visibility 0.3s;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
            visibility: hidden;
        }
        .quantity-wrapper.visible {
            max-height: 100px;
            opacity: 1;
            visibility: visible;
        }
        .quantity-selector {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
        }
        .quantity-btn {
            background: rgba(255,255,255,0.1);
            border: 1px solid var(--border);
            color: var(--primary);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            font-size: 1.5rem;
            font-weight: bold;
            cursor: pointer;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }
        .quantity-btn:hover {
            background: var(--primary);
            color: var(--bg-dark);
        }
        .quantity-input {
            width: 60px;
            height: 36px;
            padding: var(--space-sm);
            background: transparent;
            border: none;
            color: var(--text-primary);
            text-align: center;
            font-size: 1.2rem;
            font-weight: bold;
            -moz-appearance: textfield; /* Firefox */
        }
        .quantity-input::-webkit-outer-spin-button,
        .quantity-input::-webkit-inner-spin-button {
            -webkit-appearance: none;
            margin: 0;
        }