:root {
    --primary-color: #0056b3;
    --primary-light: #3a7cb9;
    --secondary-color: #003366;
    
    --accent-color: #00a0e9;
    --text-light: #ffffff;
    --text-dark: #2d3748;
    --text-gray: #4a5568;
    --bg-light: #f8fafc;
    --bg-dark: #edf2f7;
    --bg-hover: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --max-width: 1280px;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h4 {
    line-height: 1.2;
    font-weight: 700;
    color: var(--secondary-color);
}
h3{
color: white;
}

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

ul {
    list-style: none;
}

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

.main-container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.app-section {
    padding: 3rem 0;
    position: relative;
    overflow: hidden;
}

.section-title {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
    text-align: center;
    font-weight: 700;
}

    .section-title::after {
        content: '';
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: -1rem;
        width: 4rem;
        height: 4px;
        background: linear-gradient(to right, var(--primary-color), var(--accent-color));
        border-radius: 2px;
    }

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

.app-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--text-light);
    padding: 0.9rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    z-index: 1;
    letter-spacing: 0.5px;
}

    .app-btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }

    .app-btn i {
        margin-left: 0.5rem;
        transition: var(--transition);
    }

    .app-btn:hover i {
        transform: translateX(3px);
    }

.header-hero {
    color: var(--bg-dark);
    padding: 10px 0;
    overflow: hidden;
    background-color: var(--bg-light); 
}

.header-content-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.header-text-block {
    flex: 1;
    max-width: 600px;
    color: var(--text-dark);
}

.header-image-block {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

    .header-image-block img {
        max-width: 100%;
        width: 100%;
        height: 70%; 
        border-radius: 10px;
        box-shadow: var(--shadow-md);
        transition: var(--transition);
    }

        .header-image-block img:hover {
            transform: scale(1.02);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }

.header-main-title {
    font-size: 2.8rem; 
    margin-bottom: 10px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--secondary-color);
}

.header-sub-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
    opacity: 0.9;
    color: var(--text-gray);
}

.content-media-block {
    display: flex;
    align-items: center;
    gap: 4rem;
    padding: 4rem 0;
}

    .content-media-block:nth-child(even) {
        flex-direction: row-reverse; 
    }

.content-media-text,
.content-media-image {
    flex: 1;
    min-width: 300px;
}

    .content-media-image img {
        border-radius: var(--border-radius-lg);
        box-shadow: var(--shadow-lg);
        transition: transform 0.5s ease, box-shadow 0.5s ease;
        object-fit: cover;
    }

        .content-media-image img:hover {
            transform: scale(1.02);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
        }

    .content-media-text h2 {
        font-size: 2.3rem;
        color: var(--secondary-color);
        margin-bottom: 1rem;
        line-height: 1.2;
    }

    .content-media-text p {
        font-size: 1.1rem;
        margin-bottom: 1.5rem;
        line-height: 1.7;
        color: var(--text-gray);
    }

    .content-media-text ul {
        margin: 1.5rem 0;
    }

    .content-media-text li {
        margin-bottom: 0.8rem;
        position: relative;
        padding-left: 1.5rem;
        color: var(--text-gray);
    }

        .content-media-text li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.7rem;
            width: 0.5rem;
            height: 0.5rem;
            background-color: var(--accent-color);
            border-radius: 50%;
        }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.feature-card {
    background-color: var(--text-light); 
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    animation: zoomIn 0.6s ease forwards;
    opacity: 0;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 4px;
        height: 100%;
        background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
        transition: var(--transition);
    }

    .feature-card:nth-child(1) {
        animation-delay: 0s;
    }

    .feature-card:nth-child(2) {
        animation-delay: 0.15s;
    }

    .feature-card:nth-child(3) {
        animation-delay: 0.3s;
    }

    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-lg);
    }

        .feature-card:hover::before {
            width: 8px;
        }

.feature-icon {
    font-size: 2.8rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    animation: fadeIn 1s ease forwards;
}

.feature-card h3 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-dark);
    line-height: 1.7;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background-color: var(--text-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    padding: 2rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

    .product-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 5px;
        background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    }

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

    .product-card img {
        max-height: 120px;
        width: auto;
        margin-bottom: 1.5rem;
        filter: drop-shadow(0 5px 15px rgba(0,0,0,0.1));
        transition: var(--transition);
    }

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

    .product-card h3 {
        color: var(--secondary-color);
        font-size: 1.3rem;
        margin-bottom: 1rem;
        font-weight: 600;
    }

    .product-card p {
        color: var(--text-gray);
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

.training-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

    .training-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><circle cx="50" cy="50" r="40" fill="none" stroke="%23ffffff" stroke-width="0.5" opacity="0.1"/></svg>');
        background-size: 100px 100px;
        opacity: 0.1;
        z-index: 1; 
    }

    .training-section .main-container {
        position: relative;
        z-index: 2;
    }

    .training-section .section-title {
        color: var(--text-light);
    }

        .training-section .section-title::after {
            background: var(--text-light);
        }

    .training-section .content-media-text p,
    .training-section .content-media-text li {
        color: var(--text-light);
    }

.training-stats-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 3rem;
    margin: 3rem 0;
}

.stat-item {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--bg-dark);
    text-align: center;
    animation: slideInUp 0.8s ease forwards;
    opacity: 0;
}

    .stat-item:nth-child(1) {
        animation-delay: 0.2s;
    }

    .stat-item:nth-child(2) {
        animation-delay: 0.4s;
    }

    .stat-item:nth-child(3) {
        animation-delay: 0.6s;
    }

    .stat-item span {
        display: block;
        font-size: 1rem;
        font-weight: 400;
        margin-top: 0.5rem;
        opacity: 0.8;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: var(--text-light);
    }

.audience-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin: 3rem 0;
    color: var(--bg-dark); 
}

.audience-item {
    background-color: rgba(255, 255, 255, 0.2); 
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

    .audience-item:hover {
        background-color: rgba(255, 255, 255, 0.4); 
        color: var(--secondary-color); 
        transform: translateY(-3px);
    }

.testimonials-section {
    background-color: var(--bg-dark); 
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background-color: var(--text-light);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .testimonial-card:hover {
        transform: translateY(-5px);
        box-shadow: var(--shadow-lg);
    }

    .testimonial-card::before {
        content: '"';
        position: absolute;
        top: 1rem;
        left: 1rem;
        font-size: 4rem;
        color: rgba(0, 86, 179, 0.1);
        font-family: serif;
        line-height: 1;
    }

.testimonial-content {
    margin-bottom: 1.5rem;
    font-style: italic;
    color: var(--text-gray);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

    .testimonial-author img {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        margin-right: 1rem;
        object-fit: cover;
        border: 2px solid var(--primary-color);
    }

.author-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
    color: var(--secondary-color);
}

.author-info p {
    font-size: 0.8rem;
    color: var(--text-gray);
}

.cta-section {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-light) 100%);
    color: var(--text-light);
    text-align: center;
    padding: 5rem 0;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.cta-subtitle {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    opacity: 0.9;
    font-weight: 300;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1024px) {
    .app-section {
        padding: 4rem 0;
    }

    .header-main-title {
        font-size: 2.5rem;
    }

    .content-media-block {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

        .content-media-block:nth-child(even) {
            flex-direction: column;
        }

    .content-media-image,
    .content-media-text {
        width: 100%;
    }

        .content-media-text h2 {
            font-size: 2rem;
        }
}

@media (max-width: 768px) {
    .app-section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .header-hero {
        padding: 4rem 0;
    }

    .header-main-title {
        font-size: 2.2rem;
    }

    .header-sub-title {
        font-size: 1.1rem;
    }

    .header-content-wrapper {
        flex-direction: column;
        text-align: center;
    }

    .header-text-block {
        max-width: 100%;
        margin-bottom: 30px;
    }

    .header-image-block {
        justify-content: center;
    }

    .features-grid, .products-grid, .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .training-stats-grid {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }

    .stat-item {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .app-section {
        padding: 2rem 0;
    }

    .main-container {
        padding: 0 1.5rem;
    }

    .app-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .header-main-title {
        font-size: 1.8rem;
    }

    .header-sub-title {
        font-size: 1rem;
    }

    .audience-item {
        font-size: 0.9rem;
    }

    .cta-title {
        font-size: 2rem;
    }
}