*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,Roboto,sans-serif;background:#f4f6f9;color:#1c1f26}.app{min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:32px 16px 64px}.app-header{text-align:center;margin-bottom:24px}.app-header h1{margin:0 0 4px;font-size:28px}.subtitle{margin:0;color:#5b6472}.app-main{width:100%;max-width:560px;display:flex;flex-direction:column;gap:20px}.card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 3px #00000014,0 1px 2px #0000000f}.card h2{margin-top:0;font-size:20px}.form{display:flex;flex-direction:column;gap:14px;margin-top:16px}.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600;color:#333}.form input{padding:10px 12px;font-size:15px;border:1px solid #d5d9e0;border-radius:8px;outline:none}.form input:focus{border-color:#2f6fed;box-shadow:0 0 0 3px #2f6fed26}button{cursor:pointer;border:none;border-radius:8px;background:#2f6fed;color:#fff;font-size:15px;font-weight:600;padding:10px 16px}button:disabled{opacity:.6;cursor:not-allowed}.link-button{background:none;color:#2f6fed;padding:0;font-size:14px;font-weight:600;text-decoration:underline}.error{background:#fdecec;color:#c0392b;padding:10px 12px;border-radius:8px;font-size:14px}.status{color:#5b6472;font-size:14px}.welcome-banner{display:flex;justify-content:space-between;align-items:center;background:#fff;border-radius:12px;padding:14px 20px;box-shadow:0 1px 3px #00000014;font-size:14px}.source-list{list-style:none;margin:16px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.source-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border:1px solid #eceff3;border-radius:8px;font-size:14px}.source-badge{width:26px;height:26px;border-radius:50%;background:#2f6fed;color:#fff;font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.widget-frame-wrapper{margin-top:16px;display:flex;flex-direction:column;gap:10px}.widget-frame{width:100%;height:520px;border:1px solid #eceff3;border-radius:10px}.app-footer{margin-top:32px;color:#9aa2ad;font-size:13px}