:root{--bg:var(--tg-theme-bg-color,#fff);--text:var(--tg-theme-text-color,#1a1a1a);--hint:var(--tg-theme-hint-color,#707579);--link:var(--tg-theme-link-color,#2481cc);--button-bg:var(--tg-theme-button-color,#2481cc);--button-text:var(--tg-theme-button-text-color,#fff);--secondary-bg:var(--tg-theme-secondary-bg-color,#f4f4f5);--section-bg:var(--tg-theme-section-bg-color,#fff);color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.4}*{box-sizing:border-box}html,body,#root{background:var(--bg);min-height:100vh;color:var(--text);margin:0;padding:0}button{font:inherit;cursor:pointer;background:var(--button-bg);color:var(--button-text);border:none;border-radius:12px;padding:14px 20px;font-weight:600;transition:opacity .15s}button:disabled{opacity:.5;cursor:not-allowed}button:not(:disabled):active{opacity:.8}a{color:var(--link)}