:root{--tg-bg-color: #ffffff;--tg-text-color: #1c1c1e;--tg-hint-color: #8e8e93;--tg-link-color: #007aff;--tg-button-color: #007aff;--tg-button-text-color: #ffffff;--tg-secondary-bg-color: #f2f2f7}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--tg-bg-color);color:var(--tg-text-color)}.app{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center;gap:12px}.title{font-size:2rem;margin:0}.status{color:var(--tg-hint-color);margin:0 0 24px}.diagnostics{background:var(--tg-secondary-bg-color);border-radius:12px;padding:16px 24px;min-width:240px}.diagnostics h2{font-size:1rem;margin:0 0 12px}.diagnostics dl{display:grid;grid-template-columns:auto auto;gap:4px 16px;margin:0;text-align:left;font-size:.9rem}.diagnostics dt{color:var(--tg-hint-color)}.diagnostics dd{margin:0;font-weight:600}