:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-danger: #dc2626;--color-success: #16a34a;--color-neutral: #6b7280;--color-neutral-light: #f3f4f6;--color-background: #ffffff;--color-text: #111827;--color-border: #d1d5db;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--font-family: Verdana, Tahoma, "DejaVu Sans", sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--cell-size: 3rem;--cell-size-large: 4rem;--grid-gap: .25rem;--border-radius: .5rem;--card-border: 2px solid var(--color-border);--card-shadow: 0 4px 12px rgba(0, 0, 0, .15);--transition-fast: .15s ease;--transition-medium: .3s ease}*{box-sizing:border-box;margin:0;padding:0}html,body{margin:0;padding:0;height:100vh;overflow:hidden;font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.5;color:var(--color-text);background:var(--color-background);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}bingo-app{display:block;height:100vh}