:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--color-bg: #0a0a0a;--color-surface: #141414;--color-surface-elevated: #1a1a1a;--color-border: #262626;--color-text: #fafafa;--color-text-secondary: #a1a1aa;--color-primary: #10b981;--color-primary-hover: #059669;--color-danger: #ef4444;--color-danger-hover: #dc2626;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .3);--transition: .15s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.5;-webkit-font-smoothing:antialiased}.app-layout{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding:1rem 1rem 5rem;max-width:600px;margin:0 auto;width:100%}.header{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:100}.logo{display:flex;align-items:center;gap:.5rem;font-size:1.25rem;font-weight:700;color:var(--color-primary);text-decoration:none}.header-right{display:flex;align-items:center;gap:1rem}.user-name{color:var(--color-text-secondary);font-size:.875rem}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:space-around;background:var(--color-surface);border-top:1px solid var(--color-border);padding:.75rem 0;z-index:100}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:.25rem;color:var(--color-text-secondary);text-decoration:none;font-size:.75rem;transition:color var(--transition)}.bottom-nav a.active,.bottom-nav a:hover{color:var(--color-primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.25rem;border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:500;cursor:pointer;transition:all var(--transition)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-surface-elevated);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-border)}.btn-icon{padding:.5rem;background:transparent;color:var(--color-text-secondary)}.btn-icon:hover{color:var(--color-text)}.btn-danger{color:var(--color-danger)}.btn-danger:hover{color:var(--color-danger-hover)}.btn-full{width:100%}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;color:var(--color-text-secondary);font-size:.875rem}input,select,textarea{width:100%;padding:.75rem;background:var(--color-surface-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-size:1rem;transition:border-color var(--transition)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-primary)}textarea{resize:vertical;min-height:80px}.auth-page{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 4rem)}.auth-form{width:100%;max-width:400px;padding:2rem;background:var(--color-surface);border-radius:var(--radius-lg);border:1px solid var(--color-border)}.auth-form h2{margin-bottom:1.5rem;text-align:center}.auth-link{margin-top:1rem;text-align:center;color:var(--color-text-secondary)}.auth-link a{color:var(--color-primary);text-decoration:none}.error-message{padding:.75rem;background:#ef44441a;border:1px solid var(--color-danger);border-radius:var(--radius-md);color:var(--color-danger);margin-bottom:1rem}.loading,.empty-state,.error-state{display:flex;align-items:center;justify-content:center;padding:3rem;color:var(--color-text-secondary);text-align:center}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.page-header h2{font-size:1.5rem}.view-toggle{display:flex;background:var(--color-surface);border-radius:var(--radius-md);padding:.25rem}.toggle-btn{padding:.5rem .75rem;background:transparent;border:none;color:var(--color-text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition)}.toggle-btn.active{background:var(--color-primary);color:#fff}.workout-form h2{margin-bottom:1.5rem}.exercises-section{margin:1.5rem 0}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.section-header h3{font-size:1rem;color:var(--color-text-secondary)}.exercise-entries{display:flex;flex-direction:column;gap:1rem}.exercise-entry{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1rem}.entry-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.drag-handle{color:var(--color-text-secondary)}.exercise-info{flex:1}.exercise-info .exercise-name{display:block;font-weight:500}.exercise-info .exercise-type{font-size:.75rem;color:var(--color-text-secondary)}.metrics-input{display:grid;grid-template-columns:repeat(auto-fit,minmax(80px,1fr));gap:.75rem}.metric-field label{font-size:.75rem;color:var(--color-text-secondary);margin-bottom:.25rem}.metric-field input{padding:.5rem}.modal-overlay{position:fixed;inset:0;background:#000c;display:flex;align-items:flex-end;z-index:200}.exercise-selector{width:100%;max-height:80vh;background:var(--color-surface);border-radius:var(--radius-lg) var(--radius-lg) 0 0;padding:1rem;overflow-y:auto}.selector-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.search-box{display:flex;align-items:center;gap:.5rem;padding:.75rem;background:var(--color-surface-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:1rem}.search-box input{flex:1;border:none;background:transparent;padding:0}.filters{margin-bottom:1rem}.filter-group select{margin-bottom:.75rem}.tag-filters{display:flex;flex-wrap:wrap;gap:.5rem}.tag-btn{padding:.25rem .75rem;background:var(--color-surface-elevated);border:1px solid var(--color-border);border-radius:9999px;color:var(--color-text-secondary);font-size:.75rem;cursor:pointer;transition:all var(--transition)}.tag-btn.active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.exercise-list{display:flex;flex-direction:column}.exercise-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background:transparent;border:none;border-bottom:1px solid var(--color-border);color:var(--color-text);cursor:pointer;text-align:left;transition:background var(--transition)}.exercise-item:hover{background:var(--color-surface-elevated)}.exercise-item .exercise-category{color:var(--color-text-secondary);font-size:.75rem}.no-results{padding:2rem;text-align:center;color:var(--color-text-secondary)}.workout-card{display:flex;align-items:center;gap:1rem;width:100%;padding:1rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;text-align:left;transition:all var(--transition)}.workout-card:hover{border-color:var(--color-primary)}.card-date{display:flex;flex-direction:column;align-items:center;min-width:48px}.card-date .day{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.card-date .month{font-size:.75rem;color:var(--color-text-secondary);text-transform:uppercase}.card-content{flex:1}.exercise-summary{color:var(--color-text);margin-bottom:.25rem}.exercise-count{font-size:.75rem;color:var(--color-text-secondary)}.card-arrow{color:var(--color-text-secondary)}.list-view{display:flex;flex-direction:column;gap:1.5rem}.workout-section{display:flex;flex-direction:column;gap:.75rem}.section-title{font-size:.875rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.calendar-view{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1rem}.calendar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.calendar-header h3{font-size:1.125rem}.weekday-header{display:grid;grid-template-columns:repeat(7,1fr);gap:.25rem;margin-bottom:.5rem}.weekday{text-align:center;font-size:.75rem;color:var(--color-text-secondary);padding:.5rem 0}.days-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.25rem}.calendar-day{aspect-ratio:1;display:flex;flex-direction:column;align-items:center;justify-content:center;background:transparent;border:none;border-radius:var(--radius-sm);color:var(--color-text);cursor:default;font-size:.875rem;transition:all var(--transition)}.calendar-day.other-month{color:var(--color-text-secondary);opacity:.3}.calendar-day.today{border:1px solid var(--color-primary)}.calendar-day.has-workout{background:var(--color-primary);color:#fff;cursor:pointer}.calendar-day.has-workout:hover{background:var(--color-primary-hover)}.workout-indicator{font-size:.625rem;margin-top:2px}.workout-detail{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.detail-header{display:flex;align-items:center;gap:1rem;padding:1rem;border-bottom:1px solid var(--color-border)}.detail-header h2{flex:1;font-size:1rem}.header-actions{display:flex;gap:.5rem}.exercise-list-detail{padding:1rem}.exercise-detail-card{padding:1rem;background:var(--color-surface-elevated);border-radius:var(--radius-md);margin-bottom:.75rem}.exercise-detail-card:last-child{margin-bottom:0}.exercise-detail-card .exercise-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.exercise-detail-card .exercise-name{font-weight:500}.exercise-detail-card .exercise-tags{font-size:.75rem;color:var(--color-text-secondary)}.exercise-metrics{color:var(--color-primary);font-size:1.125rem;font-weight:500}.workout-notes{padding:1rem;border-top:1px solid var(--color-border)}.workout-notes h3{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:.5rem}.analytics-page h2{margin-bottom:1rem}.exercise-picker{margin-bottom:1.5rem}.exercise-picker label{display:block;margin-bottom:.5rem;color:var(--color-text-secondary);font-size:.875rem}.exercise-picker.empty{padding:2rem;text-align:center;background:var(--color-surface);border-radius:var(--radius-lg)}.exercise-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem;margin-bottom:1.5rem}.stat-card{display:flex;align-items:center;gap:.75rem;padding:1rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg)}.stat-icon{color:var(--color-primary)}.stat-content{display:flex;flex-direction:column}.stat-label{font-size:.75rem;color:var(--color-text-secondary)}.stat-value{font-size:1.125rem;font-weight:600}.stat-value.positive{color:var(--color-primary)}.stat-value.negative{color:var(--color-danger)}.progress-chart{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1rem}.chart-title{font-size:1rem;margin-bottom:1rem}.chart-placeholder{display:flex;align-items:center;justify-content:center;height:200px;background:var(--color-surface);border-radius:var(--radius-lg);color:var(--color-text-secondary)}.back-btn{display:flex;align-items:center;gap:.5rem;background:transparent;border:none;color:var(--color-text-secondary);cursor:pointer;margin-bottom:1rem;padding:0;font-size:1rem}.back-btn:hover{color:var(--color-text)}@media(min-width:640px){.main-content{padding:1.5rem 1.5rem 6rem}.modal-overlay{align-items:center;justify-content:center;padding:2rem}.exercise-selector{max-width:480px;max-height:70vh;border-radius:var(--radius-lg)}.metrics-input{grid-template-columns:repeat(3,1fr)}.exercise-stats{grid-template-columns:repeat(4,1fr)}}