:root{--color-black: #1a1a1a;--color-dark: #2d2d2d;--color-mid: #6b6b6b;--color-light: #a8a8a8;--color-border: #e0e0e0;--color-surface: #f7f7f7;--color-white: #ffffff;--color-accent: #2563eb;--color-accent-light: #dbeafe;--color-accent-hover: #1d4ed8;--color-positive: #16a34a;--color-positive-light: #dcfce7;--color-warning: #d97706;--color-muted: #9ca3af;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "SF Mono", "Fira Code", "Fira Mono", Consolas, monospace;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 40px;--space-2xl: 64px;--transition-fast: .12s ease;--transition-normal: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-sans);color:var(--color-black);background:var(--color-white);line-height:1.5}input[type=text],input[type=number],select{font-family:var(--font-sans);font-size:1rem;color:var(--color-black);background:var(--color-white);border:1px solid var(--color-border);border-radius:6px;padding:10px 12px;outline:none;transition:border-color var(--transition-fast);width:100%}input:focus,select:focus{border-color:var(--color-accent)}input[type=number]{font-family:var(--font-mono);font-size:.9375rem}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield}button{font-family:var(--font-sans);cursor:pointer;border:none;background:none}.container{max-width:680px;margin:0 auto;padding:0 var(--space-md)}@media (max-width: 640px){.container{padding:0 var(--space-md)}}