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#f44336;--color-background: #f5f5f5;--color-text: #212121;--color-text-secondary: #757575;--color-border: #e0e0e0}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--color-background);color:var(--color-text)}#app{min-height:100vh}.app-wrapper{min-height:100vh;display:flex;flex-direction:column}.user-bar{background:#fff;border-bottom:2px solid var(--color-primary);padding:.75rem 1.5rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a;z-index:100}.user-info{display:flex;align-items:center;gap:.75rem;font-weight:600;color:var(--color-text)}.user-icon{font-size:1.5rem;background:var(--color-primary-light);width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center}.user-name{font-size:1rem}.btn-logout{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#fff;color:var(--color-danger);border:2px solid var(--color-danger);border-radius:6px;font-weight:600;cursor:pointer;transition:all .3s}.btn-logout:hover{background:var(--color-danger);color:#fff;transform:translateY(-2px)}.loading-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-primary),var(--color-accent));color:#fff}.loader{border:4px solid rgba(255,255,255,.3);border-top:4px solid white;border-radius:50%;width:50px;height:50px;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-screen p{font-size:1.2rem;font-weight:600}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;font-family:inherit}.btn:disabled{opacity:.6;cursor:not-allowed}.icon{font-size:1.1rem}@media (max-width: 768px){.user-bar{padding:.5rem 1rem}.user-name{font-size:.9rem}.btn-logout{padding:.4rem .8rem;font-size:.9rem}}