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ease}.stat-card:hover{transform:translateY(-2px)}.stat-value{font-size:2rem;font-weight:700;color:#1f2937;margin-bottom:5px}.stat-label{color:#6b7280;font-size:.9rem;font-weight:500}.personal-records{background:white;border-radius:16px;padding:30px;margin-bottom:30px;box-shadow:0 4px 16px #0000001a}.personal-records h2{font-size:1.5rem;font-weight:700;color:#1f2937;margin:0 0 20px}.records-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-bottom:20px}.record-card{background:#f8fafc;border-radius:12px;padding:20px;text-align:center;border-top:4px solid;position:relative}.record-card.bench{border-top-color:#3b82f6}.record-card.deadlift{border-top-color:#ef4444}.record-card.squat{border-top-color:#10b981}.record-card.clean{border-top-color:#f59e0b}.record-name{font-size:.9rem;color:#6b7280;margin-bottom:8px;font-weight:500}.record-value{font-size:1.6rem;font-weight:700;color:#1f2937;margin-bottom:5px}.record-change{font-size:.8rem;font-weight:600;padding:2px 8px;border-radius:12px;display:inline-block}.record-change.positive{background-color:#dcfce7;color:#16a34a}.record-change.negative{background-color:#fee2e2;color:#dc2626}.total-card{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border-radius:12px;padding:20px;text-align:center;box-shadow:0 4px 16px #667eea4d}.total-label{font-size:1rem;margin-bottom:5px;opacity:.9}.total-value{font-size:2.2rem;font-weight:700}.profile-settings{background:white;border-radius:12px;padding:20px;box-shadow:0 2px 8px #0000001a}.sign-out-button{background-color:#fee2e2;color:#dc2626;border:2px solid #fecaca;padding:12px 24px;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;width:100%}.sign-out-button:hover{background-color:#fecaca;border-color:#f87171}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{background:white;border-radius:12px;width:100%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px #0000004d}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 20px 0;border-bottom:1px solid #e5e7eb;margin-bottom:20px}.modal-header h2{font-size:1.3rem;color:#374151;margin:0}.close-button{background:none;border:none;font-size:24px;color:#6b7280;cursor:pointer;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center}.close-button:hover{color:#374151}.modal-body{padding:0 20px 20px}.form-group{margin-bottom:20px}.form-row{display:flex;gap:15px;margin-bottom:20px}.form-row .form-group{flex:1;margin-bottom:0}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#374151}.text-field,.select-field{width:100%;padding:12px;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;transition:border-color .3s ease;box-sizing:border-box;background-color:#fff}.text-field:focus,.select-field:focus{outline:none;border-color:#667eea}.text-field:disabled{background-color:#f9fafb;color:#6b7280;cursor:not-allowed}.select-field{cursor:pointer}.select-field:disabled{background-color:#f9fafb;color:#6b7280;cursor:not-allowed}.modal-actions{display:flex;gap:10px;margin-top:30px}.cancel-button{flex:1;padding:12px;border:2px solid #e5e7eb;background:white;color:#374151;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.cancel-button:hover{border-color:#d1d5db;background-color:#f9fafb}.save-button{flex:1;padding:12px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.save-button:hover{transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}.save-button:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.error-message{position:fixed;bottom:20px;left:20px;right:20px;background-color:#fee2e2;color:#dc2626;padding:12px 16px;border-radius:8px;border:1px solid #fecaca;z-index:1001;max-width:400px;margin:0 auto}@media (max-width: 768px){.profile-view{padding:15px}.profile-header{flex-direction:column;text-align:center;padding:20px}.profile-avatar{width:100px;height:100px}.avatar-placeholder{font-size:2.5rem}.profile-info h1{font-size:1.5rem}.profile-stats,.records-grid{grid-template-columns:repeat(2,1fr)}.record-value{font-size:1.4rem}.total-value{font-size:1.8rem}.modal-content{margin:20px;max-width:none}.form-row{flex-direction:column;gap:0}.form-row .form-group{margin-bottom:20px}.modal-actions{flex-direction:column}.cancel-button,.save-button{width:100%}}@media (max-width: 480px){.profile-view{padding:10px}.profile-header{padding:15px}.profile-avatar{width:80px;height:80px}.avatar-placeholder{font-size:2rem}.profile-stats,.records-grid{grid-template-columns:1fr}.personal-records{padding:20px}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f7fa}.app-loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}.app-loading .loading-spinner{width:40px;height:40px;border:3px solid #e5e7eb;border-top:3px solid #3b82f6;border-radius:50%;animation:spin 1s linear infinite}.app-loading p{color:#6b7280;font-size:1rem}.app-container{min-height:100vh;display:flex;flex-direction:column;background-color:#f8fafc}.app-content{flex:1;padding-bottom:80px;min-height:calc(100vh - 80px)}.bottom-navigation{position:fixed;bottom:0;left:0;right:0;background:white;border-top:1px solid #e5e7eb;display:flex;padding:8px 0;box-shadow:0 -2px 10px #0000001a;z-index:100}.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:8px 4px;border:none;background:none;cursor:pointer;transition:all .3s ease;color:#6b7280;text-decoration:none}.nav-item.active{color:#667eea}.nav-item:hover{background-color:#f3f4f6;border-radius:8px}.nav-icon{font-size:1.2rem;margin-bottom:2px}.nav-label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.nav-item.active .nav-icon{transform:scale(1.1)}.nav-item.active .nav-label{font-weight:700}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.app-content{padding-bottom:90px}.nav-item{padding:10px 4px;gap:6px}.nav-icon{font-size:1.3rem}.nav-label{font-size:.65rem}}@media (max-width: 480px){.bottom-navigation{padding:6px 0}.nav-item{padding:8px 2px;gap:4px}.nav-icon{font-size:1.1rem}.nav-label{font-size:.6rem}}