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20px}}.App{text-align:center;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:2rem}.App-header{padding:2rem;background:#ffffff1a;border-radius:1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 8px 32px #0000001a;max-width:1400px;width:100%}h1{margin:0 0 .5rem;font-size:2.5rem}h3{margin:0 0 1rem;font-size:1.25rem;opacity:.95}p{margin:0 0 1rem;opacity:.9}.actions{display:flex;flex-direction:column;gap:2rem;margin-top:2rem}.action-section{display:flex;flex-direction:column;align-items:stretch;width:100%}button{padding:.75rem 1.5rem;font-size:1rem;background:#fff;color:#667eea;border:none;border-radius:.5rem;cursor:pointer;font-weight:600;transition:transform .2s,box-shadow .2s,opacity .2s;min-width:200px}button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px 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ease;min-width:auto}.filter-reset:hover{background:#ffffff4d;transform:translateY(-1px)}@media (max-width: 1400px){.accounts-grid{grid-template-columns:repeat(3,1fr)!important}}@media (max-width: 1000px){.accounts-grid{grid-template-columns:repeat(2,1fr)!important}}@media (max-width: 768px){.transaction-filters{grid-template-columns:1fr}.accounts-grid{grid-template-columns:1fr!important}}.spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite;margin-right:.5rem;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.error-actions{margin-top:1rem;display:flex;gap:.5rem;flex-wrap:wrap;justify-content:center}.error-actions button{min-width:auto;padding:.5rem 1rem;font-size:.9rem}.error-hint{margin-top:.5rem;font-size:.85rem;opacity:.8;font-style:italic}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe 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