*{box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f7fa;color:#2d3748;line-height:1.6}html{scroll-behavior:smooth}button,input{font-family:inherit}@media (display-mode: standalone){body{-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#888;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#555}}.pwa-loading{position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#1976d2,#1565c0);display:flex;align-items:center;justify-content:center;flex-direction:column;color:#fff;z-index:9999}.pwa-loading .logo{font-size:48px;font-weight:700;margin-bottom:20px;animation:pulse 2s infinite}.pwa-loading .description{font-size:16px;opacity:.8;text-align:center;max-width:300px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}@media (max-width: 768px){body,input,textarea,select{font-size:16px}}@media (prefers-color-scheme: dark){:root{--bg-color: #121212;--text-color: #ffffff;--card-bg: #1e1e1e}@media (display-mode: standalone){body{background-color:var(--bg-color);color:var(--text-color)}}}.install-pwa-btn{position:fixed;bottom:20px;right:20px;background:#1976d2;color:#fff;border:none;border-radius:50px;padding:12px 20px;font-size:14px;font-weight:500;cursor:pointer;box-shadow:0 4px 12px #1976d24d;transition:all .3s ease;z-index:1000;display:none}.install-pwa-btn:hover{background:#1565c0;transform:translateY(-2px);box-shadow:0 6px 16px #1976d266}.install-pwa-btn.show{display:block;animation:slideIn .3s ease}@keyframes slideIn{0%{transform:translate(100px);opacity:0}to{transform:translate(0);opacity:1}}