*{margin:0;padding:0;box-sizing:border-box}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;min-height:100vh;background-color:#90ee90;display:flex;justify-content:center;align-items:flex-start;padding:40px 16px}#root{width:100%;max-width:700px}.username-page{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 80px)}.username-card{background-color:#1a3a2a;border-radius:20px;padding:40px 48px;display:flex;flex-direction:column;align-items:center;gap:24px;width:100%;max-width:420px}.username-card h2{color:#fff;font-size:1.5rem;font-weight:700;margin:0;letter-spacing:1px}.username-input{width:100%;background-color:#e8e8e8;color:#555;border:none;border-radius:24px;padding:14px 24px;font-size:1.05rem;font-weight:500;outline:none;text-align:center}.username-input::placeholder{color:#999}.username-input:focus{box-shadow:0 0 0 2px #a8a8e080}.btn-enter{background-color:#a8a8e0;color:#fff;border:none;border-radius:20px;padding:10px 32px;font-size:.95rem;font-weight:600;cursor:pointer;transition:opacity .2s,transform .2s}.btn-enter:hover{opacity:.85;transform:scale(1.03)}.tasks-container{display:flex;flex-direction:column;gap:20px}.task-card{background-color:#1a3a2a;border-radius:20px;padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:16px}.task-card h2{color:#fff;font-size:1.4rem;font-weight:700;margin:0}.task-card p{color:#fff;font-size:1rem;font-weight:600;margin:0 0 8px}.task-content{flex:1}.btn-follow{background-color:#a8a8e0;color:#fff;border:none;border-radius:20px;padding:10px 24px;font-size:.95rem;font-weight:600;cursor:pointer;transition:opacity .2s,transform .2s;white-space:nowrap;text-decoration:none;display:inline-block}.btn-follow:hover{opacity:.85;transform:scale(1.03)}.btn-link{background-color:#a8a8e0;color:#fff;border:none;border-radius:20px;padding:10px 24px;font-size:.9rem;font-weight:600;cursor:pointer;transition:opacity .2s,transform .2s;text-decoration:none;display:inline-block;margin-top:0}.btn-link:hover{opacity:.85;transform:scale(1.03)}.link-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:2px}.proof-input{flex:1;min-width:0;background-color:#ffffff1f;color:#fff;border:1px solid rgba(255,255,255,.2);border-radius:20px;padding:8px 16px;font-size:.85rem;outline:none}.proof-input::placeholder{color:#ffffff73}.proof-input:focus{border-color:#a8a8e099;background-color:#ffffff29}.wallet-card{flex-direction:column;align-items:stretch;gap:14px}.wallet-card .task-content{width:100%}.wallet-input{width:100%;background-color:#a8a8e0;color:#fff;border:none;border-radius:20px;padding:10px 20px;font-size:.95rem;font-weight:500;outline:none;margin-top:8px}.wallet-input::placeholder{color:#ffffffb3}.wallet-input:focus{box-shadow:0 0 0 2px #a8a8e080}.btn-done{background-color:#c5a84e;color:#fff;border:none;border-radius:20px;padding:12px 24px;font-size:.95rem;font-weight:600;cursor:pointer;transition:opacity .2s,transform .2s;white-space:nowrap;width:100%}.btn-done:hover{opacity:.85;transform:scale(1.03)}.btn-done:disabled{opacity:.5;cursor:not-allowed;transform:none}.task-card.completed{opacity:.7}.btn-follow.completed,.btn-link.completed{background-color:#6b9e6b}.success-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:50}.success-card{background-color:#1a3a2a;border-radius:24px;padding:40px;text-align:center;max-width:420px;width:90%}.success-icon{width:80px;height:80px;background-color:#4caf50;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:2.5rem;color:#fff}.success-card h2{color:#fff;font-size:1.5rem;margin-bottom:10px}.success-card p{color:#ffffffb3;font-size:.95rem;margin-bottom:24px}.btn-close{background-color:#a8a8e0;color:#fff;border:none;border-radius:20px;padding:12px 32px;font-size:1rem;font-weight:600;cursor:pointer;transition:opacity .2s}.btn-close:hover{opacity:.85}.error-message{background-color:#d32f2f;color:#fff;padding:12px 20px;border-radius:12px;text-align:center;font-size:.9rem}.spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;margin-right:8px;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}