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ease}.secondary-button:hover:not(:disabled){background:#1a73e8;box-shadow:0 4px 12px #1a73e84d;color:#fff;transform:translateY(-2px)}.secondary-button:disabled{background:#0000;border-color:#9ca3af;box-shadow:none;color:#9ca3af;cursor:not-allowed;transform:none}.form-group{margin-bottom:1.5rem}.form-group label{color:#374151;font-size:1rem;font-weight:600;margin-bottom:.75rem}.payment-element-container{background-color:#fff;border:2px solid #e5e7eb;border-radius:12px;box-shadow:0 2px 4px #0000000d;padding:1rem;transition:all .3s ease}.payment-element-container:hover{border-color:#d1d5db}.payment-element-container:focus-within{border-color:#1a73e8;box-shadow:0 0 0 3px #1a73e81a}.payment-button{background:#1a73e8;border-radius:12px;box-shadow:0 4px 12px #1a73e84d;font-size:1.1rem;padding:1rem;transition:all .3s ease}.payment-button:hover:not(:disabled){background:#1557b0;box-shadow:0 6px 16px #1a73e866}.payment-button:disabled{background:#9ca3af}@media 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p{font-size:16px;font-weight:600;margin:0}.action-buttons{align-items:center;gap:12px}.return-home-button{background:linear-gradient(135deg,#29335c,#1e2542);border:none;border-radius:12px;box-shadow:0 4px 12px #29335c4d;color:#fff;cursor:pointer;font-size:16px;font-weight:600;min-width:220px;overflow:hidden;padding:16px 32px;position:relative;transition:all .3s ease}.return-home-button:hover{background:linear-gradient(135deg,#1e2542,#151a33);box-shadow:0 6px 16px #29335c66;transform:translateY(-2px)}.return-home-button:active{box-shadow:0 2px 8px #29335c4d;transform:translateY(0)}.start-learning-button{background:#0000;border:2px solid #0ea5e9;border-radius:12px;color:#0ea5e9;cursor:pointer;font-size:16px;font-weight:600;min-width:200px;padding:14px 28px;transition:all .3s ease}.start-learning-button:hover{background:#0ea5e9;box-shadow:0 4px 12px #0ea5e94d;color:#fff;transform:translateY(-1px)}.start-learning-button:active{box-shadow:0 2px 8px #0ea5e94d;transform:translateY(0)}.continue-button{background-color:#29335c;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:16px;font-weight:600;padding:14px 28px;transition:all .2s ease}.continue-button:hover{background-color:#1e2542;box-shadow:0 4px 8px #0000001a;transform:translateY(-2px)}@media (max-width:640px){.payment-success{margin:16px;padding:24px}.payment-success h2{font-size:24px}.success-message p:first-child{font-size:16px}.action-buttons{flex-direction:column;gap:16px}.return-home-button,.start-learning-button{min-width:0;min-width:auto;width:100%}.next-steps{padding:12px}.next-steps p{font-size:14px}}@media (max-width:480px){.payment-success{margin:12px;padding:20px}.success-icon{font-size:32px;height:64px;margin-bottom:20px;width:64px}.subscription-details{padding:16px}.detail-item{align-items:flex-start;flex-direction:column;gap:4px}.detail-value{font-weight:700}}.daily-limit-counter{background:#1a1f3a;color:#fff;margin:-16px calc(-50vw + 50%) 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.progress-fill{background:linear-gradient(90deg,#4a5568,#2d3748)}.progress-details{color:#4a5568;display:flex;font-size:14px;font-weight:500;justify-content:center}.upgrade-section{background:#fffc;border:1px solid #e2e8f0;border-radius:8px;margin-top:16px;padding:16px;text-align:center}.upgrade-message{color:#2d3748;font-size:14px;font-weight:500;margin:0 0 12px}.upgrade-button{background-color:#fff;border:2px solid #fff;border-radius:8px;box-shadow:0 2px 4px #0003;color:#29335c;font-size:16px;font-weight:700;margin-top:1px;padding:12px 16px;transition:all .3s}.upgrade-button:hover{background-color:initial;box-shadow:0 4px 12px #0000004d;color:#fff;transform:translateY(-3px)}.upgrade-button:active{transform:translateY(0)}.limit-reached-message{background:#ffffffe6;border:1px solid #e2e8f0;border-radius:8px;margin-top:16px;padding:16px;text-align:center}.limit-reached-message p{color:#4a5568;font-size:14px;font-weight:500;margin:0 0 16px}.reset-countdown{margin-bottom:16px}.reset-countdown h4{color:#2d3748;font-size:16px;font-weight:600;margin:0 0 8px}.upgrade-button-large{background:linear-gradient(135deg,#48bb78,#38a169);border:none;border-radius:12px;box-shadow:0 4px 8px #48bb784d;color:#fff;cursor:pointer;font-size:16px;font-weight:700;max-width:300px;padding:16px 32px;transition:all .2s ease;width:100%}.upgrade-button-large:hover{box-shadow:0 6px 16px #48bb7866;transform:translateY(-2px)}.upgrade-button-large:active{transform:translateY(0)}@media (max-width:768px){.daily-limit-counter{margin:16px 0;padding:18px}.banner-content h2{font-size:30px;margin-bottom:10px}.banner-content p{font-size:15px;margin-bottom:16px}.upgrade-button{font-size:15px;padding:14px 20px;width:100%}}@media (max-width:480px){.daily-limit-counter{padding:16px}.banner-content h2{font-size:24px}.banner-content p{font-size:14px}}@keyframes progressAnimation{0%{width:0}to{width:var(--progress-width)}}.progress-fill.animate{animation:progressAnimation .8s ease-out}.home-container{background-color:#f8fafc;display:flex;flex-direction:column;min-height:100vh;overflow:hidden}.main-content{margin:0 auto;padding:1rem;width:100%}.loading-container{background-color:#fff;min-height:100vh}.loading-text{font-weight:500}.trial-activation-loading{background:#e0f2fe;border:1px solid #0288d1;border-radius:8px;box-shadow:0 2px 4px #0000001a;margin:1rem 0;padding:1rem;text-align:center}.trial-activation-loading .loading-text{color:#0277bd;font-size:1.1rem;font-weight:600}.error-message{border-radius:.2rem;font-size:1.25rem;font-weight:800;margin:0 auto 1.5rem;max-width:400px;text-align:center}.topics-container{margin-bottom:2rem;width:100%}.topics-list{display:flex;flex-direction:column;gap:.1rem;width:100%}@media (min-width:1400px){.main-content{max-width:100%}}@media (max-width:1200px){.main-content{max-width:95%}}@media 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