:root{--color-bg: #ffffff;--color-bg-secondary: #f8fafc;--color-bg-tertiary: #f1f5f9;--color-surface: #ffffff;--color-surface-hover: #f1f5f9;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-secondary: #64748b;--color-text-muted: #6b7280;--color-primary: #4f46e5;--color-primary-hover: #4338ca;--color-primary-text: #ffffff;--color-success: #22c55e;--color-success-bg: #f0fdf4;--color-danger: #ef4444;--color-danger-bg: #fef2f2;--color-warning: #f59e0b;--color-shadow: rgba(0, 0, 0, .08);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", monospace;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 32px;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height: 1.5;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px var(--color-shadow);--shadow-md: 0 4px 6px var(--color-shadow);--shadow-lg: 0 10px 25px var(--color-shadow);--touch-min: 48px;--transition-fast: .15s ease;--transition-normal: .2s ease}[data-theme=dark],:root:has([data-theme=dark]){--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-surface: #1e293b;--color-surface-hover: #334155;--color-border: #334155;--color-text: #f8fafc;--color-text-secondary: #94a3b8;--color-text-muted: #64748b;--color-primary: #818cf8;--color-primary-hover: #6366f1;--color-primary-text: #0f172a;--color-success-bg: #052e16;--color-danger-bg: #450a0a;--color-shadow: rgba(0, 0, 0, .3)}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-surface: #1e293b;--color-surface-hover: #334155;--color-border: #334155;--color-text: #f8fafc;--color-text-secondary: #94a3b8;--color-text-muted: #64748b;--color-primary: #818cf8;--color-primary-hover: #6366f1;--color-primary-text: #0f172a;--color-success-bg: #052e16;--color-danger-bg: #450a0a;--color-shadow: rgba(0, 0, 0, .3)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:var(--font-size-base);-webkit-text-size-adjust:100%}body{font-family:var(--font-family);line-height:var(--line-height);color:var(--color-text);background:var(--color-bg);min-height:100dvh;-webkit-font-smoothing:antialiased}#app{max-width:480px;margin:0 auto;padding:var(--space-4);padding-bottom:calc(var(--space-12) + env(safe-area-inset-bottom,0px));min-height:100dvh}h1{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold)}h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-semibold)}h3{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold)}h4{font-size:var(--font-size-lg);font-weight:var(--font-weight-medium)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:var(--touch-min);padding:var(--space-3) var(--space-5);border:none;border-radius:var(--radius-md);font-family:inherit;font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast);-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}.btn:active{transform:scale(.97)}.btn-primary{background:var(--color-primary);color:var(--color-primary-text)}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text)}.btn-secondary:hover{background:var(--color-surface-hover)}.btn-danger{background:var(--color-danger);color:#fff}.btn-ghost{background:transparent;color:var(--color-primary)}.btn-ghost:hover{background:var(--color-bg-tertiary)}.btn-full{width:100%}.btn-lg{min-height:56px;font-size:var(--font-size-lg);border-radius:var(--radius-lg)}.input{width:100%;min-height:var(--touch-min);padding:var(--space-3) var(--space-4);background:var(--color-bg-secondary);color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-md);font-family:inherit;font-size:var(--font-size-base);transition:border-color var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #6366f126}.input::placeholder{color:var(--color-text-muted)}.input-sm{min-height:40px;padding:var(--space-2) var(--space-3);font-size:var(--font-size-sm)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4)}.card-clickable{cursor:pointer;transition:background var(--transition-fast)}.card-clickable:hover{background:var(--color-surface-hover)}.card-clickable:active{transform:scale(.99)}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.w-full{width:100%}.text-center{text-align:center}.text-secondary{color:var(--color-text-secondary)}.text-muted{color:var(--color-text-muted)}.text-sm{font-size:var(--font-size-sm)}.text-xs{font-size:var(--font-size-xs)}.font-medium{font-weight:var(--font-weight-medium)}.font-semibold{font-weight:var(--font-weight-semibold)}.mt-2{margin-top:var(--space-2)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mb-2{margin-bottom:var(--space-2)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.chip{display:inline-flex;align-items:center;min-height:36px;padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);background:var(--color-bg-tertiary);color:var(--color-text);cursor:pointer;border:2px solid transparent;transition:border-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);-webkit-tap-highlight-color:transparent}.chip:hover{background:var(--color-surface-hover)}.chip.active{background:var(--color-primary);color:var(--color-primary-text);border-color:var(--color-primary)}.checkbox-btn{display:flex;align-items:center;justify-content:center;width:var(--touch-min);height:var(--touch-min);background:none;border:2px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;color:transparent;font-size:var(--font-size-lg);transition:all var(--transition-fast)}.checkbox-btn.checked{background:var(--color-success);border-color:var(--color-success);color:#fff}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:100;display:flex;align-items:flex-end;justify-content:center}.modal-content{background:var(--color-bg);border-radius:var(--radius-xl) var(--radius-xl) 0 0;width:100%;max-width:480px;max-height:85vh;overflow-y:auto;padding:var(--space-4);animation:slideUp var(--transition-normal)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@media (prefers-reduced-motion: reduce){.modal-content{animation:none}}.top-bar{display:flex;align-items:center;justify-content:space-between;min-height:56px;margin-bottom:var(--space-4)}.empty-state{text-align:center;padding:var(--space-10) var(--space-4);color:var(--color-text-muted)}.empty-state-icon{font-size:48px;margin-bottom:var(--space-4)}.drag-handle{cursor:grab;color:var(--color-text-muted);padding:var(--space-2);font-size:var(--font-size-lg);-webkit-tap-highlight-color:transparent}.set-row{display:grid;grid-template-columns:36px 1fr 1fr 70px 48px;gap:var(--space-2);align-items:center;padding:var(--space-1) 0}.set-number{text-align:center;font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-muted)}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3)}.stat-card{background:var(--color-bg-secondary);border-radius:var(--radius-md);padding:var(--space-3);text-align:center}.stat-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-primary)}.stat-label{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.exercise-list{max-height:50vh;overflow-y:auto;-webkit-overflow-scrolling:touch}.exercise-list-item{display:flex;align-items:center;justify-content:space-between;min-height:var(--touch-min);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);cursor:pointer;transition:background var(--transition-fast)}.exercise-list-item:hover{background:var(--color-surface-hover)}.exercise-list-item:last-child{border-bottom:none}.equipment-tag{font-size:var(--font-size-xs);color:var(--color-text);background:var(--color-bg-tertiary);padding:2px 8px;border-radius:var(--radius-full)}.pr-badge{display:inline-flex;align-items:center;gap:2px;padding:1px 6px;border-radius:var(--radius-full);font-size:11px;font-weight:var(--font-weight-bold);letter-spacing:.02em;animation:pr-pop .4s ease-out;white-space:nowrap}.pr-badge--weight{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}.pr-badge--volume{background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff}.pr-badge--reps{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff}@keyframes pr-pop{0%{transform:scale(.5);opacity:0}70%{transform:scale(1.15);opacity:1}to{transform:scale(1)}}@media (prefers-reduced-motion: reduce){.pr-badge{animation:none}}.pr-summary-card{background:linear-gradient(135deg,var(--color-bg-secondary),#fef3c7);border:1px solid #f59e0b;border-radius:var(--radius-lg);padding:var(--space-4);text-align:center;font-weight:var(--font-weight-semibold)}[data-theme=dark] .pr-summary-card,:root:not([data-theme=light]) .pr-summary-card{background:linear-gradient(135deg,var(--color-bg-secondary),#422006)}@media (prefers-color-scheme: dark){:root:not([data-theme=light]) .pr-summary-card{background:linear-gradient(135deg,var(--color-bg-secondary),#422006)}}.best-line{font-size:var(--font-size-xs);color:var(--color-text-muted);padding:var(--space-1) 0}.exercise-history-item{display:flex;align-items:center;justify-content:space-between;min-height:var(--touch-min);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);cursor:pointer;transition:background var(--transition-fast)}.exercise-history-item:hover{background:var(--color-surface-hover)}.exercise-history-item:last-child{border-bottom:none}.set-pr-badges{display:flex;gap:4px;flex-wrap:wrap;margin-top:2px}.e1rm-annotation{font-size:var(--font-size-xs);color:var(--color-text-muted);padding:0 0 var(--space-1) 36px;grid-column:1 / -1}.e1rm-card{text-align:center}.e1rm-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-primary);line-height:1.2}.e1rm-tag{font-size:var(--font-size-xs);color:var(--color-text-muted);background:var(--color-bg-tertiary);padding:2px 8px;border-radius:var(--radius-full);white-space:nowrap;flex-shrink:0}.csv-upload-zone{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-8) var(--space-4);border:2px dashed var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-secondary);cursor:pointer;transition:border-color var(--transition-fast),background var(--transition-fast);text-align:center;min-height:160px}.csv-upload-zone:hover,.csv-upload-zone:focus-visible{border-color:var(--color-primary);background:var(--color-surface-hover);outline:none}.csv-upload-zone:active{transform:scale(.99)}.chart-container{min-height:200px;padding:var(--space-2);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.chart-controls{display:flex;gap:var(--space-2);flex-wrap:wrap}.chip-sm{min-height:30px;padding:var(--space-1) var(--space-3);font-size:var(--font-size-xs)}.chart-empty{display:flex;align-items:center;justify-content:center;min-height:180px;color:var(--color-text-muted);font-size:var(--font-size-sm);text-align:center;padding:var(--space-4)}.chart-single-point{display:flex;align-items:center;justify-content:center;min-height:180px;padding:var(--space-4)}.chart-legend{display:flex;gap:var(--space-4);justify-content:center;font-size:var(--font-size-xs);color:var(--color-text-secondary)}.chart-legend-item{display:inline-flex;align-items:center;gap:var(--space-1)}.chart-legend-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--color-primary)}.chart-legend-dot--pr{background:#f59e0b;width:10px;height:10px}.chart-line{vector-effect:non-scaling-stroke}.chart-point{transition:r .15s ease}.chart-pr-point{filter:drop-shadow(0 0 3px rgba(245,158,11,.4))}.chart-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:var(--radius-md);background:var(--color-bg-tertiary);color:var(--color-primary);cursor:pointer;font-size:var(--font-size-base);transition:background var(--transition-fast);flex-shrink:0}.chart-icon-btn:hover{background:var(--color-surface-hover)}.chart-icon-btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.rest-timer{position:fixed;bottom:0;left:0;right:0;z-index:50;display:none;justify-content:center;padding-bottom:env(safe-area-inset-bottom,0px);pointer-events:none}.rest-timer--visible{display:flex}.rest-timer__inner{display:flex;align-items:center;gap:var(--space-3);width:100%;max-width:480px;min-height:72px;padding:var(--space-3) var(--space-4);background:var(--color-surface);border-top:2px solid var(--color-primary);box-shadow:0 -4px 16px var(--color-shadow);pointer-events:all;transform:translateY(100%);transition:transform var(--transition-normal),background var(--transition-fast)}.rest-timer--animate-in .rest-timer__inner{transform:translateY(0)}[data-rt-state=warning] .rest-timer__inner{border-top-color:var(--color-warning);background:color-mix(in srgb,var(--color-surface) 92%,var(--color-warning))}[data-rt-state=done] .rest-timer__inner{border-top-color:var(--color-success);background:color-mix(in srgb,var(--color-surface) 88%,var(--color-success));animation:rest-timer-flash .6s ease-in-out infinite alternate}@keyframes rest-timer-flash{0%{opacity:1}to{opacity:.85}}.rest-timer__center{display:flex;flex-direction:column;align-items:center;position:relative;cursor:pointer;flex:1;-webkit-tap-highlight-color:transparent}.rest-timer__ring{width:48px;height:48px;transform:rotate(-90deg)}.rest-timer__ring-bg{fill:none;stroke:var(--color-border);stroke-width:3}.rest-timer__ring-fg{fill:none;stroke:var(--color-primary);stroke-width:3;stroke-linecap:round;transition:stroke-dashoffset 1s linear}[data-rt-state=warning] .rest-timer__ring-fg{stroke:var(--color-warning)}[data-rt-state=done] .rest-timer__ring-fg{stroke:var(--color-success)}.rest-timer__digits{position:absolute;top:50%;left:50%;transform:translate(-50%,-60%);font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);font-variant-numeric:tabular-nums;color:var(--color-text);line-height:1}.rest-timer__label{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-muted);margin-top:var(--space-1);text-transform:uppercase;letter-spacing:.05em}.rest-timer__adjust{display:flex;align-items:center;justify-content:center;min-width:52px;min-height:40px;background:var(--color-bg-tertiary);color:var(--color-text);border:none;border-radius:var(--radius-md);font-family:inherit;font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background var(--transition-fast)}.rest-timer__adjust:hover{background:var(--color-surface-hover)}.rest-timer__adjust:active{transform:scale(.95)}.rest-timer__pause{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:none;border:none;color:var(--color-text-muted);font-size:var(--font-size-base);cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:var(--radius-md);transition:background var(--transition-fast)}.rest-timer__pause:hover{background:var(--color-bg-tertiary)}@media (prefers-reduced-motion: reduce){.rest-timer__inner{transition:none}[data-rt-state=done] .rest-timer__inner{animation:none}.rest-timer__ring-fg{transition:none}}body:has(.rest-timer--visible) #app{padding-bottom:calc(var(--space-12) + 80px + env(safe-area-inset-bottom,0px))}.settings-group{display:flex;flex-direction:column;gap:var(--space-1)}.settings-row{display:flex;align-items:center;justify-content:space-between;min-height:var(--touch-min);padding:var(--space-2) 0}.settings-row__label{font-size:var(--font-size-base);color:var(--color-text)}.settings-row__desc{font-size:var(--font-size-xs);color:var(--color-text-muted)}.toggle{position:relative;display:inline-flex;width:48px;height:28px;flex-shrink:0}.toggle input{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:100%;height:100%;position:absolute;margin:0;cursor:pointer;z-index:1}.toggle__track{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--color-border);border-radius:14px;cursor:pointer;transition:background var(--transition-fast)}.toggle input:checked+.toggle__track{background:var(--color-primary)}.toggle__track:after{content:"";position:absolute;width:22px;height:22px;left:3px;top:3px;background:#fff;border-radius:50%;transition:transform var(--transition-fast);box-shadow:0 1px 3px #0003}.toggle input:checked+.toggle__track:after{transform:translate(20px)}.toggle input:focus-visible+.toggle__track{outline:2px solid var(--color-primary);outline-offset:2px}.stepper{display:flex;align-items:center;gap:var(--space-1)}.stepper__btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--color-bg-tertiary);border:none;border-radius:var(--radius-md);font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-text);cursor:pointer;-webkit-tap-highlight-color:transparent}.stepper__btn:active{transform:scale(.95)}.stepper__value{min-width:48px;text-align:center;font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);font-variant-numeric:tabular-nums}.volume-slider{width:100px;accent-color:var(--color-primary)}