:root{--c-bg: #f5f5f4;--c-surface: #ffffff;--c-border: #e0dedb;--c-text: #1a1a1a;--c-text-muted: #6b6864;--c-brand: #1a1a1a;--c-brand-contrast: #ffffff;--c-ok: #15803d;--c-ok-bg: #ecfdf3;--c-warn: #b45309;--c-warn-bg: #fffbeb;--c-error: #b91c1c;--c-error-bg: #fef2f2;--radius: 10px;--tap-target: 44px;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background-color:var(--c-bg);color:var(--c-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}#app{min-height:100%;display:flex;flex-direction:column}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;background:none;border:none}a{color:inherit}input,select,textarea{font-size:16px}.page{flex:1;padding:16px;padding-left:calc(16px + var(--safe-left));padding-right:calc(16px + var(--safe-right))}.page-title{font-size:20px;font-weight:600;margin-bottom:4px}.page-subtitle{color:var(--c-text-muted);font-size:14px}.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:14px}.stack>*+*{margin-top:12px}.muted{color:var(--c-text-muted)}.center-screen{flex:1;display:flex;flex-direction:column;justify-content:center;padding:24px;padding-top:calc(24px + var(--safe-top));padding-bottom:calc(24px + var(--safe-bottom))}