:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --accent-color: #06b6d4;
    --background: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --card-background: #ffffff;
    --hover-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 4rem;
    padding: 2rem 0;
}

.hero-content {
    max-width: 1200px;
    margin: 3rem auto 0;
    padding: 0 2rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    padding: 2rem;
    background: var(--card-background);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.feature p {
    color: var(--text-secondary);
    line-height: 1.5;
}

.content-divider {
    height: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    margin: 4rem 0;
    opacity: 0.8;
}

.product-features {
    background: linear-gradient(135deg, #1a365d, #0d2339);
    color: white;
    padding: 6rem 2rem;
}

.product-features .hero-content {
    max-width: 1200px;
    margin: 0 auto;
}

.product-features h1 {
    color: white;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    -webkit-text-fill-color: initial;
}

.product-features .hero-description {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.product-features .feature {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-icons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.product-features .feature-icons i {
    font-size: 1.8rem;
    color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    transition: all 0.3s ease;
}

.product-features .feature:hover .feature-icons i {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.product-features .feature h3 {
    color: white;
}

.product-features .feature p {
    color: rgba(255, 255, 255, 0.8);
}

.benefits {
    padding: 6rem 2rem;
    background: var(--background);
}

.benefits h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.benefit-card {
    padding: 2rem;
    background: var(--card-background);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
}

.benefit-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.benefit-card p {
    color: var(--text-secondary);
    line-height: 1.5;
}

.logo {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2px;
}

.logo-text {
    color: var(--text-primary);
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.05em;
}

.logo-text.highlight {
    color: var(--primary-color);
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.25rem;
    font-weight: 500;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--card-background);
    border-radius: 1rem;
    padding: 2rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

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

.card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.card:hover i {
    transform: scale(1.1);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

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

.download-card {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 3.5rem;
    margin: 2rem 0;
    border-radius: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.download-card i {
    color: white;
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.download-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

.download-card h2 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

.download-card:hover {
    filter: brightness(1.1);
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.circuit-lines {
    stroke: var(--primary-color);
    opacity: 0.5;
    stroke-dasharray: 30;
    stroke-dashoffset: 0;
    animation: dash 3s linear infinite;
}

.circuit-dot {
    fill: var(--primary-color);
    opacity: 0.7;
}

.tech-accent {
    stroke: var(--accent-color);
    opacity: 0.8;
}

.tech-shape {
    stroke: var(--primary-color);
    opacity: 0.4;
    animation: fade 2s ease-in-out infinite alternate;
}

.pulse-dot {
    fill: var(--accent-color);
    animation: pulse 2s infinite;
}

@keyframes dash {
    to {
        stroke-dashoffset: 60;
    }
}

@keyframes fade {
    from {
        opacity: 0.2;
    }
    to {
        opacity: 0.6;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.editions-comparison {
    margin-top: 4rem;
    padding: 4rem 2rem;
    background: var(--card-background);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.editions-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.editions-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.edition {
    padding: 2rem;
    border-radius: 1rem;
    background: var(--background);
    border: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.edition-header {
    text-align: center;
    margin-bottom: 2rem;
}

.edition-header i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.edition-header h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0.5rem 0;
}

.edition-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    background: var(--accent-color);
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
}

.edition-tag.premium {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.features-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.features-list li {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.features-list li i {
    color: var(--primary-color);
    margin-right: 1rem;
    font-size: 1rem;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    width: 100%;
}

.contact-btn i {
    margin-right: 0.5rem;
}

.contact-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    
    .cards-container {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: 1.5rem;
    }

    .editions-comparison {
        padding: 2rem 1rem;
        margin-top: 2rem;
    }

    .editions-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .edition {
        padding: 1.5rem;
    }
}