/* CSS Reset & Custom Properties */
:root {
    /* Colors */
    --color-primary: #2a623d;
    --color-primary-dark: #1e4a2e;
    --color-primary-light: #3a7a50;
    --color-secondary: #64748b;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-background: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-border-dark: #cbd5e1;
    
    /* Typography */
    --font-family-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Layout */
    --max-width-content: 65ch;
    --max-width-layout: 1200px;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --transition-base: 0.15s ease-in-out;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout Components */
.container {
    max-width: var(--max-width-layout);
    margin: 0 auto;
    padding: 0 var(--space-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-xl) 0;
    margin: 0 calc(-1 * var(--space-md));
}

.header-content {
    max-width: var(--max-width-layout);
    margin: 0 auto;
    padding: 0 var(--space-md);
    text-align: center;
}

.site-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.site-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    font-weight: 400;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: var(--space-3xl) 0;
}

/* Games Grid */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

/* Game Card */
.game-card {
    background: var(--color-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-smooth);
    border: 1px solid var(--color-border);
}

.game-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.game-card.coming-soon {
    opacity: 0.7;
}

.game-card.coming-soon:hover {
    transform: none;
    box-shadow: var(--shadow-md);
}

/* Game Preview */
.game-preview {
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.preview-cards {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    gap: var(--space-sm);
}

.preview-card {
    width: 60px;
    height: 84px;
    background: var(--color-surface);
    border-radius: 6px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.preview-card::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    border: 2px solid var(--color-primary);
    border-radius: 4px;
}

.preview-card.card-1 {
    transform: rotate(-10deg);
    z-index: 1;
}

.preview-card.card-2 {
    transform: rotate(0deg);
    z-index: 2;
}

.preview-card.card-3 {
    transform: rotate(10deg);
    z-index: 1;
}

/* Game Info */
.game-info {
    padding: var(--space-xl);
}

.game-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.game-description {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.game-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.feature {
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.coming-soon .feature {
    background: var(--color-secondary);
}

/* Play Button */
.play-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-primary);
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--font-size-base);
}

.play-button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.play-button.disabled {
    background: var(--color-secondary);
    cursor: not-allowed;
    transform: none;
}

.play-button.disabled:hover {
    background: var(--color-secondary);
    transform: none;
}

/* Footer */
.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl) 0;
    margin: 0 calc(-1 * var(--space-md));
    margin-top: auto;
}

.footer-content {
    max-width: var(--max-width-layout);
    margin: 0 auto;
    padding: 0 var(--space-md);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .site-header,
    .site-footer {
        margin: 0 calc(-1 * var(--space-sm));
    }
    
    .header-content,
    .footer-content {
        padding: 0 var(--space-sm);
    }
    
    .site-title {
        font-size: var(--font-size-3xl);
    }
    
    .site-subtitle {
        font-size: var(--font-size-base);
    }
    
    .games-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .game-preview {
        height: 150px;
    }
    
    .preview-card {
        width: 45px;
        height: 63px;
    }
    
    .game-info {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--space-xl) 0;
    }
    
    .game-preview {
        height: 120px;
    }
    
    .preview-card {
        width: 35px;
        height: 49px;
    }
    
    .preview-card::before {
        top: 4px;
        left: 4px;
        right: 4px;
        bottom: 4px;
    }
}