:root{color-scheme:light dark;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--tg-theme-bg-color, #f4f6f8);color:var(--tg-theme-text-color, #111827)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--tg-theme-bg-color, #f4f6f8)}button,input,select{font:inherit}button{cursor:pointer}.app-shell{width:min(780px,100%);margin:0 auto;padding:16px}.locked-shell{display:grid;place-items:center;min-height:100vh;padding:24px}.locked-panel{width:min(420px,100%);padding:22px;border:1px solid rgb(120 144 156 / .18);border-radius:8px;background:var(--tg-theme-secondary-bg-color, #ffffff)}.locked-panel h1{margin:0 0 10px;font-size:26px;line-height:1.15}.locked-panel p:last-child{margin:0;color:var(--tg-theme-hint-color, #6b7280);line-height:1.45}.topbar,.section-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.topbar h1,.section-header 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