/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Основная цветовая палитра - яркая, но структурированная */
    --color-primary: #6366F1;
    --color-primary-dark: #4F46E5;
    --color-primary-light: #818CF8;
    --color-accent-pink: #EC4899;
    --color-accent-yellow: #FBBF24;
    --color-accent-cyan: #06B6D4;
    
    /* Фоновые цвета - светлые с легкими акцентами */
    --color-bg: #FFFFFF;
    --color-bg-light: #F8FAFC;
    --color-bg-gradient: linear-gradient(135deg, #F0F4FF 0%, #FDF2F8 100%);
    --color-bg-section: rgba(255, 255, 255, 0.9);
    
    /* Градиенты - структурированные */
    --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    --gradient-accent: linear-gradient(135deg, #EC4899 0%, #F472B6 100%);
    --gradient-hero: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #EC4899 100%);
    
    /* Текст */
    --color-text: #1E293B;
    --color-text-light: #475569;
    --color-text-muted: #64748B;
    
    /* Границы и тени */
    --color-border: rgba(99, 102, 241, 0.15);
    --shadow-sm: 0 2px 8px rgba(99, 102, 241, 0.1);
    --shadow-md: 0 4px 16px rgba(99, 102, 241, 0.15);
    --shadow-lg: 0 8px 32px rgba(99, 102, 241, 0.2);
    --shadow-glow: 0 0 24px rgba(99, 102, 241, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --line-height: 1.6;
    --max-width: 900px;
}

body {
    font-family: var(--font-family);
    font-weight: 400;
    color: var(--color-text);
    background: var(--color-bg-gradient);
    background-attachment: fixed;
    line-height: var(--line-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* Легкий декоративный фон */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    background: var(--color-bg-section);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 2px solid var(--color-border);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: transform 0.3s ease;
    display: inline-block;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-separator {
    color: var(--color-border);
    font-weight: 300;
}

/* Hero Section */
.hero {
    margin-bottom: var(--spacing-xxl);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    background: var(--color-bg-section);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.6s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-tagline {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent-pink);
    font-style: italic;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* Intro Section */
.intro {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-bg-section);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.intro-text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
    font-weight: 500;
}

/* Sections */
.section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-bg-section);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    color: var(--color-text);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
    font-weight: 500;
}

/* Lists */
.game-list,
.feature-list {
    list-style: none;
    margin: var(--spacing-md) 0;
    padding-left: 0;
}

.game-list li,
.feature-list li {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) var(--spacing-xl);
    position: relative;
    line-height: 1.7;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 12px;
    border-left: 3px solid var(--color-primary);
    transition: all 0.3s ease;
    font-weight: 500;
}

.game-list li::before,
.feature-list li::before {
    content: "▸";
    position: absolute;
    left: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.game-list li:hover,
.feature-list li:hover {
    transform: translateX(4px);
    background: rgba(99, 102, 241, 0.1);
    border-left-color: var(--color-accent-pink);
}

.steps-list {
    list-style: none;
    counter-reset: step-counter;
    margin: var(--spacing-md) 0;
    padding-left: 0;
}

.steps-list li {
    counter-increment: step-counter;
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) var(--spacing-xxl);
    position: relative;
    line-height: 1.7;
    background: var(--color-bg-light);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    font-weight: 500;
}

.steps-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-weight: 800;
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.steps-list li:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

/* Features */
.feature {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-light);
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    position: relative;
}

.feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.01em;
    transition: all 0.3s ease;
}

.feature-text {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
    font-weight: 500;
}

.examples {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(236, 72, 153, 0.08) 100%);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-left: 4px solid var(--color-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.example-item {
    font-size: 1rem;
    color: var(--color-text);
    font-family: 'Courier New', monospace;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    background: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
}

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

/* Table */
.features-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: var(--spacing-md) 0;
    font-size: 1rem;
    background: var(--color-bg-section);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.features-table thead {
    background: var(--gradient-primary);
}

.features-table th {
    text-align: left;
    padding: var(--spacing-md);
    font-weight: 800;
    color: white;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.features-table td {
    padding: var(--spacing-md);
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border);
    line-height: 1.6;
    font-weight: 500;
    background: var(--color-bg);
    transition: all 0.3s ease;
}

.features-table tbody tr:last-child td {
    border-bottom: none;
}

.features-table tbody tr:hover td {
    background: rgba(99, 102, 241, 0.05);
}

/* Highlight Section */
.highlight-section {
    background: var(--color-bg-section);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
    border: 2px solid var(--color-primary);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.highlight-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.highlight-section .section-title {
    margin-bottom: var(--spacing-md);
}

.highlight-section .section-text {
    position: relative;
}

/* CTA Section */
.cta-section {
    margin: var(--spacing-xxl) 0;
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: var(--color-bg-section);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    position: relative;
}

.cta-text {
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
    font-weight: 700;
}

.cta-tagline {
    font-size: 1.25rem;
    color: var(--color-accent-pink);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.125rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-md);
    text-transform: uppercase;
}

.download-btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-glow);
}

.download-btn:active {
    transform: translateY(-2px) scale(1.02);
}

.play-icon {
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Footer */
.footer {
    margin-top: var(--spacing-xxl);
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-section);
    backdrop-filter: blur(10px);
    border-top: 2px solid var(--color-border);
    border-radius: 24px 24px 0 0;
    box-shadow: 0 -4px 16px rgba(99, 102, 241, 0.1);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.footer-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
}

.footer-separator {
    color: var(--color-border);
    font-weight: 300;
    font-size: 1.25rem;
}

.footer-copyright {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .features-table {
        font-size: 0.875rem;
    }

    .features-table th,
    .features-table td {
        padding: var(--spacing-sm);
    }

    .highlight-section {
        padding: var(--spacing-md);
    }

    .cta-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .download-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.875rem;
    }

    .features-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .section {
        padding: var(--spacing-md);
    }

    .feature {
        padding: var(--spacing-md);
    }
}

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

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}