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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.8;
    color: #2c3e50;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 14px;
}

.primary-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.primary-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.6);
}

.secondary-btn {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.2);
}

.secondary-btn:hover {
    background: #fff;
    color: #667eea;
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(255, 255, 255, 0.4);
}

.download-btn {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    box-shadow: 0 10px 30px rgba(245, 87, 108, 0.4);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(245, 87, 108, 0.6);
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 80px;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    letter-spacing: -1px;
}

.header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo h1 {
    font-size: 32px;
    font-weight: 900;
    background: linear-gradient(135deg, #fff 0%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 40px;
}

.nav ul li a {
    text-decoration: none;
    color: #fff;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #f093fb, #f5576c);
    transition: width 0.3s ease;
}

.nav ul li a:hover::after {
    width: 100%;
}

.nav ul li a:hover {
    color: #f093fb;
}

.header-btn {
    margin-left: 40px;
}

.hero {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.8) 0%, rgba(118, 75, 162, 0.8) 100%);
    padding: 180px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: move 20s linear infinite;
}

@keyframes move {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    text-align: left;
}

.hero-content h2 {
    font-size: 64px;
    font-weight: 900;
    margin-bottom: 30px;
    color: #fff;
    line-height: 1.1;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    letter-spacing: -2px;
}

.hero-content p {
    font-size: 22px;
    margin-bottom: 50px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

.hero-btns {
    display: flex;
    gap: 25px;
    justify-content: flex-start;
}

.hero-image {
    flex: 1;
    max-width: 500px;
    display: flex;
    justify-content: flex-end;
}

.hero-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: transform 0.4s ease;
}

.hero-image img:hover {
    transform: scale(1.05);
}

.features {
    padding: 120px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.feature-item {
    background: linear-gradient(135deg, #fff 0%, #f8f9ff 100%);
    padding: 50px 40px;
    border-radius: 24px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.feature-item:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 60px rgba(102, 126, 234, 0.25);
}

.feature-icon {
    margin-bottom: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    transition: all 0.4s ease;
}

.feature-item:hover .feature-icon {
    transform: rotate(10deg) scale(1.1);
}

.feature-icon svg {
    width: 40px;
    height: 40px;
}

.feature-item h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #2c3e50;
}

.feature-item p {
    color: #7f8c8d;
    line-height: 1.8;
    font-size: 16px;
}

.advantages {
    padding: 120px 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
    backdrop-filter: blur(10px);
}

.advantages-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
}

.advantage-item {
    text-align: center;
    padding: 40px 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s ease;
}

.advantage-item:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
}

.advantage-number {
    font-size: 56px;
    font-weight: 900;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 25px;
    line-height: 1;
}

.advantage-item h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

.advantage-item p {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
}

.testimonials {
    padding: 120px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.testimonial-item {
    background: linear-gradient(135deg, #fff 0%, #f8f9ff 100%);
    padding: 50px 40px;
    border-radius: 24px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
    overflow: hidden;
}

.testimonial-item::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 80px;
    font-weight: 900;
    color: rgba(102, 126, 234, 0.1);
    line-height: 1;
}

.testimonial-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 60px rgba(102, 126, 234, 0.25);
}

.testimonial-content p {
    font-size: 18px;
    line-height: 1.8;
    color: #2c3e50;
    margin-bottom: 40px;
    font-style: italic;
    position: relative;
    z-index: 1;
}

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

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    border: 3px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
}

.author-avatar:hover {
    border-color: rgba(102, 126, 234, 0.5);
    transform: scale(1.1);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 20px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 5px;
}

.author-info p {
    font-size: 15px;
    color: #7f8c8d;
    margin: 0;
    font-style: normal;
}

.faq {
    padding: 120px 0;
    background: linear-gradient(135deg, rgba(118, 75, 162, 0.9) 0%, rgba(102, 126, 234, 0.9) 100%);
    backdrop-filter: blur(10px);
}

.faq-content {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 35px 40px;
    margin-bottom: 25px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.faq-item:hover {
    transform: translateX(10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.faq-item h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #2c3e50;
}

.faq-item p {
    color: #7f8c8d;
    line-height: 1.8;
    font-size: 16px;
}

.download {
    padding: 120px 0;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: move 25s linear infinite reverse;
}

.download .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.download-content {
    flex: 1;
    max-width: 500px;
    text-align: left;
}

.download-content h2 {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 25px;
    color: #fff;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.download-content p {
    font-size: 20px;
    margin-bottom: 50px;
    color: rgba(255, 255, 255, 0.9);
}

.download-buttons {
    display: flex;
    gap: 25px;
    justify-content: flex-start;
}

.download-image {
    flex: 1;
    max-width: 500px;
    display: flex;
    justify-content: flex-end;
}

.download-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: transform 0.4s ease;
}

.download-image img:hover {
    transform: scale(1.05);
}

.download-buttons .btn {
    background: #fff;
    color: #f5576c;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.download-buttons .btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.footer {
    background: rgba(44, 62, 80, 0.95);
    backdrop-filter: blur(10px);
    color: #fff;
    padding: 80px 0 40px;
}

.footer .container {
    display: flex;
    flex-direction: column;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.footer-logo h2 {
    font-size: 32px;
    font-weight: 900;
    background: linear-gradient(135deg, #667eea 0%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links ul {
    display: flex;
    list-style: none;
}

.footer-links ul li {
    margin-left: 40px;
}

.footer-links ul li a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
    font-weight: 500;
}

.footer-links ul li a:hover {
    color: #f093fb;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 992px) {
    .hero .container,
    .download .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-content,
    .download-content {
        max-width: 100%;
        text-align: center;
    }

    .hero-content h2 {
        font-size: 48px;
    }

    .hero-btns,
    .download-buttons {
        justify-content: center;
    }

    .hero-image,
    .download-image {
        max-width: 100%;
        margin-top: 50px;
        justify-content: center;
    }

    .header .container {
        flex-direction: column;
        padding: 15px;
    }

    .nav ul {
        margin: 15px 0;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav ul li {
        margin: 0 15px;
    }

    .header-btn {
        margin: 15px 0;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 32px;
        margin-bottom: 50px;
    }

    .hero-content h2 {
        font-size: 36px;
    }

    .hero-content p {
        font-size: 18px;
    }

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

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

    .footer-links ul {
        margin-top: 25px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-links ul li {
        margin: 10px 15px;
    }

    .download-content h2 {
        font-size: 36px;
    }
}

@media (max-width: 576px) {
    .hero-content h2 {
        font-size: 28px;
    }

    .hero-btns,
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }

    .logo h1 {
        font-size: 24px;
    }

    .section-title {
        font-size: 28px;
    }
}