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var(--transition-fast)}.checkbox-item:hover{border-color:var(--primary-light);background:var(--gray-100)}.checkbox-item.selected{border-color:var(--primary);background:#2d5a271a}.checkbox-item input[type=checkbox]{width:24px;height:24px;accent-color:var(--primary)}.progress-bar{height:12px;background:var(--gray-200);border-radius:var(--radius-full);overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary) 0%,var(--success) 100%);border-radius:var(--radius-full);transition:width var(--transition-slow)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.animate-fade-in{animation:fadeIn .5s ease forwards}.animate-slide-up{animation:slideUp .6s ease forwards}.animate-pulse{animation:pulse 2s ease-in-out infinite}.animate-float{animation:float 3s ease-in-out infinite}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-6)}.text-center{text-align:center}.text-primary{color:var(--primary)}.text-success{color:var(--success)}.text-muted{color:var(--gray-500)}.mb-2{margin-bottom:var(--spacing-2)}.mb-4{margin-bottom:var(--spacing-4)}.mb-6{margin-bottom:var(--spacing-6)}.mb-8{margin-bottom:var(--spacing-8)}.mt-4{margin-top:var(--spacing-4)}.mt-6{margin-top:var(--spacing-6)}.mt-8{margin-top:var(--spacing-8)}.alert{padding:var(--spacing-4) var(--spacing-6);border-radius:var(--radius-lg);display:flex;align-items:flex-start;gap:var(--spacing-3)}.alert-warning{background:#fef3c7;border:1px solid #F59E0B;color:#92400e}.alert-success{background:#d1fae5;border:1px solid #10B981;color:#065f46}.alert-info{background:#dbeafe;border:1px solid #3B82F6;color:#1e40af}.spinner{width:40px;height:40px;border:4px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--spacing-4)}.stat-card{background:linear-gradient(135deg,var(--white) 0%,var(--gray-50) 100%);padding:var(--spacing-6);border-radius:var(--radius-xl);text-align:center;border:1px solid var(--gray-200)}.stat-value{font-size:var(--font-size-3xl);font-weight:700;color:var(--primary)}.stat-label{font-size:var(--font-size-sm);color:var(--gray-500);margin-top:var(--spacing-1)}.exercise-card{background:var(--white);border:2px solid var(--gray-200);border-radius:var(--radius-xl);padding:var(--spacing-5);cursor:pointer;transition:all var(--transition-base)}.exercise-card:hover{border-color:var(--primary-light);transform:translate(4px)}.exercise-card.completed{background:linear-gradient(135deg,#d1fae5,#a7f3d0);border-color:var(--success)}.exercise-card.completed .exercise-name{text-decoration:line-through;color:var(--gray-500)}