.app-container{max-width:800px;margin:40px auto;padding:20px}header{text-align:center;margin-bottom:40px}header h1{color:#1a1a1a;font-size:2.5rem}header h2{color:#666;font-size:1.2rem;font-weight:400}.status-board{background:var(--card-bg);border-radius:8px;padding:30px;box-shadow:0 4px 6px #0000000d}.status-board h3{border-bottom:2px solid #eee;margin-bottom:20px;padding-bottom:10px}.status-loading{color:#666;font-style:italic}.status-error{color:var(--error-color);background:#ffebee;border-radius:4px;padding:10px;font-weight:700}.status-success{border-left:4px solid var(--success-color);background:#e8f5e9;border-radius:4px;padding:15px}:root{--primary-bg:#f4f4f9;--text-main:#333;--card-bg:#fff;--success-color:#2e7d32;--error-color:#d32f2f}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--primary-bg);color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}