:root{--color-background: #F5F5F7;--color-surface: #FFFFFF;--color-text-primary: #1D1D1F;--color-text-secondary: #86868B;--color-accent: #007AFF;--color-accent-hover: #0071E3;--color-destructive: #FF3B30;--color-success: #34C759;--color-border: #D2D2D7;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.5rem;--font-size-2xl: 2rem;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-pill: 999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-apple: 0 4px 24px rgba(0, 0, 0, .04)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}input,button,select,textarea{font-family:inherit;font-size:var(--font-size-base)}button{cursor:pointer;border:none;background:none}a{color:var(--color-accent);text-decoration:none}h1,h2,h3,h4,h5,h6{font-weight:600;letter-spacing:-.015em}.container{max-width:1024px;margin:0 auto;padding:var(--spacing-lg)}.card{background-color:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-apple);border:1px solid rgba(0,0,0,.02)}