:root{--surface-page:#080a12;--surface-card:#12142a;--surface-elevated:#1a1d3a;--surface-glass:#ffffff0a;--surface-overlay:#080a12d1;--surface-scrim:#04050ab8;--primary:#e94560;--primary-hover:#ff6b81;--primary-glow:#e9456040;--gradient-primary:linear-gradient(135deg, #e94560, #ff6b81);--accent:#00d4aa;--accent-hover:#00e5c0;--accent-dim:#00d4aa1f;--accent-glow:#00d4aa33;--gradient-accent:linear-gradient(135deg, #00d4aa, #20e3c2);--text:#eeeef2;--text-muted:#8888a0;--text-dim:#4a4a65;--border:#ffffff0f;--border-active:#ffffff1f;--danger:#e94560;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 16px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow-primary:0 4px 24px #e945604d;--shadow-glow-accent:0 4px 24px #00d4aa26;--radius-sm:8px;--radius:14px;--radius-lg:20px;--radius-xl:28px;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-xxl:48px;--font-body:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:ui-monospace, "SF Mono", Consolas, monospace;--nav-height:64px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--surface-page);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overscroll-behavior-y:contain;min-height:100dvh}#root{flex-direction:column;max-width:100%;min-height:100dvh;display:flex}.page{max-width:480px;padding:calc(var(--space-lg) + env(safe-area-inset-top,0px)) calc(var(--space-md) + env(safe-area-inset-right,0px)) calc(var(--nav-height) + var(--space-lg) + env(safe-area-inset-bottom,0px)) calc(var(--space-md) + env(safe-area-inset-left,0px));flex:1;width:100%;margin:0 auto}h1{color:var(--text);letter-spacing:-.02em;font-size:1.75rem;font-weight:800}h2{color:var(--text);margin-bottom:var(--space-sm);letter-spacing:-.01em;font-size:1.25rem;font-weight:700}h3{color:var(--text);font-size:1rem;font-weight:600}p{color:var(--text-muted);line-height:1.6}.error{color:var(--danger);font-size:.875rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.04)}}@keyframes glow{0%,to{box-shadow:0 0 20px var(--accent-glow)}50%{box-shadow:0 0 40px var(--accent-glow), 0 0 60px #00d4aa1a}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.btn{border-radius:var(--radius);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;-webkit-user-select:none;user-select:none;letter-spacing:-.01em;border:none;justify-content:center;align-items:center;gap:8px;width:100%;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn--primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-glow-primary)}.btn--primary:hover:not(:disabled){box-shadow:0 6px 32px #e9456066}.btn--secondary{background:var(--surface-card);color:var(--text);border:1px solid var(--border-active)}.btn--secondary:hover:not(:disabled){background:var(--surface-elevated);border-color:var(--text-dim)}.btn--ghost{color:var(--text-muted);background:0 0;font-weight:500}.btn--ghost:hover:not(:disabled){color:var(--text)}.btn--danger{background:var(--danger);color:#fff}.btn--sm{padding:8px 16px;font-size:.875rem}.btn--md{padding:14px 24px;font-size:1rem}.btn--lg{padding:20px 24px;font-size:1.5rem}.page-header{z-index:20;align-items:center;gap:var(--space-sm);margin:calc(-1 * (var(--space-lg) + env(safe-area-inset-top,0px))) calc(-1 * (var(--space-md) + env(safe-area-inset-right,0px))) var(--space-md) calc(-1 * (var(--space-md) + env(safe-area-inset-left,0px)));padding:calc(var(--space-sm) + env(safe-area-inset-top,0px)) calc(var(--space-md) + env(safe-area-inset-right,0px)) var(--space-sm) calc(var(--space-md) + env(safe-area-inset-left,0px));background:var(--surface-overlay);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border);grid-template-columns:44px 1fr 44px;display:grid;position:sticky;top:0}.page-header-slot{align-items:center;min-height:44px;display:flex}.page-header-slot--right{justify-content:flex-end}.page-header-title{text-align:center;color:var(--text);letter-spacing:-.01em;text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:1.0625rem;font-weight:700;overflow:hidden}.page-header-back{width:44px;height:44px;color:var(--text-muted);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;margin-left:-10px;transition:color .2s,background .2s,transform .2s;display:flex}.page-header-back:hover{color:var(--text);background:var(--surface-glass)}.page-header-back:active{transform:scale(.92)}.stepper{justify-content:space-between;align-items:center;gap:var(--space-md);display:flex}.stepper-text{flex-direction:column;gap:2px;min-width:0;display:flex}.stepper-label{font-size:.9375rem;font-weight:500}.stepper-hint{color:var(--text-dim);font-size:.75rem}.stepper-control{align-items:center;gap:var(--space-xs);flex-shrink:0;display:flex}.stepper-btn{width:44px;height:44px;font-size:1.25rem;font-family:var(--font-body);background:var(--surface-elevated);border:1px solid var(--border);color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:50%;justify-content:center;align-items:center;line-height:1;transition:border-color .2s,background .2s,transform 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env(safe-area-inset-top,0px));font-size:.75rem;font-weight:600;position:fixed;top:0;left:0;right:0}.bottom-nav{min-height:calc(var(--nav-height) + env(safe-area-inset-bottom,0px));-webkit-backdrop-filter:blur(24px)saturate(1.2);border-top:1px solid var(--border);z-index:50;padding-bottom:env(safe-area-inset-bottom,0px);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px);background:#080a12e0;justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-nav-tab{color:var(--text-dim);font-size:.6875rem;font-weight:500;font-family:var(--font-body);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:0 0;border:none;flex-direction:column;align-items:center;gap:3px;padding:8px 20px;transition:color .2s;display:flex}.bottom-nav-tab.active{color:var(--accent)}.bottom-nav-tab:active{transform:scale(.92)}.loading-spinner{border:3px solid var(--surface-elevated);border-top-color:var(--accent);border-radius:50%;width:32px;height:32px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.login-page{justify-content:center;align-items:center;gap:var(--space-lg);min-height:100dvh;padding:var(--space-xl);flex-direction:column;display:flex}.login-page h1{background:var(--gradient-primary);-webkit-text-fill-color:transparent;letter-spacing:-.03em;-webkit-background-clip:text;background-clip:text;font-size:2.5rem;font-weight:800}.login-page form{gap:var(--space-md);flex-direction:column;width:100%;max-width:360px;display:flex}input{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-card);color:var(--text);font-size:1rem;font-family:var(--font-body);outline:none;padding:14px 16px;transition:border-color .2s,box-shadow .2s}input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}input::placeholder{color:var(--text-dim)}input:-webkit-autofill{caret-color:var(--text);transition:background-color 5000s ease-in-out;-webkit-box-shadow:0 0 0 30px var(--surface-card) inset!important;-webkit-text-fill-color:var(--text)!important}input:-webkit-autofill:hover{caret-color:var(--text);transition:background-color 5000s ease-in-out;-webkit-box-shadow:0 0 0 30px var(--surface-card) inset!important;-webkit-text-fill-color:var(--text)!important}input:-webkit-autofill:focus{caret-color:var(--text);transition:background-color 5000s ease-in-out;-webkit-box-shadow:0 0 0 30px var(--surface-card) inset!important;-webkit-text-fill-color:var(--text)!important}.login-toggle{color:var(--text-muted);font-size:.875rem;font-family:var(--font-body);cursor:pointer;padding:var(--space-sm);text-align:center;-webkit-tap-highlight-color:transparent;background:0 0;border:none;transition:color .2s}.login-toggle:hover{color:var(--text)}.home-page{gap:var(--space-lg);flex-direction:column;animation:.3s fadeIn;display:flex}.home-hero{text-align:center;padding:var(--space-xl) 0 var(--space-md)}.home-greeting{color:var(--accent);text-transform:uppercase;letter-spacing:2px;margin-bottom:var(--space-xs);font-size:.875rem;font-weight:500}.home-title{letter-spacing:-.04em;margin-bottom:var(--space-sm);font-size:2.5rem;font-weight:800}.home-subtitle{color:var(--text-muted);font-size:1rem}.duration-grid{gap:var(--space-md);grid-template-columns:repeat(2,1fr);display:grid}.duration-btn{padding:var(--space-xl) var(--space-md);background:var(--surface-card);border:1px solid var(--border);border-radius:var(--radius-lg);color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;flex-direction:column;justify-content:center;align-items:center;gap:2px;transition:all 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var(--border);border-radius:var(--radius);flex-direction:column;display:flex}.builder-panel-head{justify-content:space-between;align-items:center;min-height:20px;display:flex}.builder-panel-title{letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);font-size:.75rem;font-weight:700}.builder-reset{font-size:.75rem;font-weight:600;font-family:var(--font-body);color:var(--accent);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;margin:-4px -8px;padding:4px 8px}.rest-field{gap:var(--space-xs);flex-direction:column;display:flex}.rest-field-head{justify-content:space-between;align-items:baseline;gap:var(--space-sm);display:flex}.rest-field-value{font-variant-numeric:tabular-nums;color:var(--accent);font-size:1.125rem;font-weight:700}.rest-slider{appearance:none;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:0;width:100%;height:28px;padding:0}.rest-slider:focus{box-shadow:none}.rest-slider::-webkit-slider-runnable-track{background:var(--surface-elevated);border-radius:999px;height:6px}.rest-slider::-moz-range-track{background:var(--surface-elevated);border-radius:999px;height:6px}.rest-slider::-webkit-slider-thumb{appearance:none;border:2px solid var(--surface-card);background:var(--gradient-primary);width:24px;height:24px;box-shadow:var(--shadow-sm);border-radius:50%;margin-top:-9px}.rest-slider::-moz-range-thumb{border:2px solid var(--surface-card);background:var(--primary);width:22px;height:22px;box-shadow:var(--shadow-sm);border-radius:50%}.rest-slider:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 3px var(--primary-glow)}.rest-slider:focus-visible::-moz-range-thumb{box-shadow:0 0 0 3px var(--primary-glow)}.rest-field-scale{color:var(--text-dim);justify-content:space-between;font-size:.6875rem;display:flex}.circuit-list{gap:var(--space-sm);margin-bottom:var(--space-lg);flex-direction:column;animation:.3s slideUp;display:flex}.circuit-item{align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--surface-card);border-radius:var(--radius);border:1px solid var(--border);transition:all .2s;display:flex}.circuit-item-illustration{background:var(--surface-elevated);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex;overflow:hidden}.circuit-item:hover{background:var(--surface-elevated);border-color:var(--border-active)}.exercise-name{flex:1;font-size:.9375rem;font-weight:500}.exercise-reps{color:var(--text-muted);font-size:.875rem;font-weight:600}.exclude-btn{border:1px solid var(--border);width:32px;height:32px;color:var(--text-dim);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border-radius:50%;justify-content:center;align-items:center;font-size:.8125rem;transition:all .2s;display:flex}.exclude-btn:hover{border-color:var(--danger);color:var(--danger);background:#e9456014}.preview-actions{gap:var(--space-md);margin-bottom:var(--space-md);display:flex}.preview-actions>*{flex:1}.runner-page{width:100%;max-width:480px;min-height:100dvh;padding:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px);overscroll-behavior:none;touch-action:manipulation;-webkit-user-select:none;user-select:none;flex-direction:column;margin:0 auto;display:flex}.runner-active{padding:var(--space-md) var(--space-md) var(--space-lg);flex-direction:column;flex:1;display:flex}.runner-progress{margin-bottom:var(--space-md)}.runner-meta{color:var(--text-dim);margin-bottom:var(--space-xl);letter-spacing:.3px;justify-content:space-between;font-size:.75rem;font-weight:500;display:flex}.runner-exercise-area{justify-content:center;align-items:center;gap:var(--space-md);text-align:center;flex-direction:column;flex:1;display:flex}.runner-illustration{background:radial-gradient(circle,#fff 60%,#f0f0f5);border-radius:50%;justify-content:center;align-items:center;width:200px;height:200px;display:flex;overflow:hidden;box-shadow:0 0 60px #ffffff0f,0 0 20px #ffffff0a}.runner-exercise-timer{color:var(--accent);font-size:1.5rem;font-weight:700;font-family:var(--font-mono);margin-top:var(--space-xs)}.runner-exercise-name{color:var(--text);letter-spacing:-.01em;font-size:1.5rem;font-weight:700}.runner-timer-bar{padding:var(--space-sm) 0;margin-bottom:var(--space-sm);justify-content:space-between;align-items:center;display:flex}.runner-timer-left,.runner-timer-right{align-items:center;gap:var(--space-sm);display:flex}.runner-abandon-btn{width:44px;height:44px;color:var(--text-dim);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;margin-left:-12px;transition:color .2s,background .2s,transform .15s;display:flex}.runner-abandon-btn:hover{color:var(--text-muted);background:var(--surface-glass)}.runner-abandon-btn:active{transform:scale(.9)}.runner-session-timer{color:var(--text);font-size:1.25rem;font-weight:700;font-family:var(--font-mono)}.runner-remaining{color:var(--text-muted);font-size:.8125rem;font-family:var(--font-mono)}.runner-rep-count{color:var(--primary);letter-spacing:-.03em;font-size:3.5rem;font-weight:800;line-height:1}.runner-rep-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:2px;font-size:.8125rem;font-weight:600}.runner-next-btn{width:100%;font-size:1.5rem;font-weight:700;font-family:var(--font-body);background:var(--gradient-primary);color:#fff;border-radius:var(--radius-lg);cursor:pointer;-webkit-tap-highlight-color:transparent;box-shadow:var(--shadow-glow-primary);letter-spacing:.02em;border:none;padding:22px;transition:transform .1s}.runner-next-btn:active{transform:scale(.96)}.runner-actions{gap:var(--space-sm);flex-direction:column;display:flex}.runner-prev-btn{min-height:44px;padding:0 var(--space-md);color:var(--text-dim);font-family:var(--font-body);letter-spacing:.02em;cursor:pointer;border-radius:var(--radius-sm);-webkit-tap-highlight-color:transparent;touch-action:manipulation;background:0 0;border:none;align-self:center;font-size:.875rem;font-weight:600;transition:color .2s,transform .15s}.runner-prev-btn:hover{color:var(--text-muted)}.runner-prev-btn:active{transform:scale(.95)}.runner-confirm{z-index:100;padding:var(--space-lg);background:var(--surface-scrim);-webkit-backdrop-filter:blur(6px);justify-content:center;align-items:center;animation:.15s fadeIn;display:flex;position:fixed;inset:0}.runner-confirm-card{width:100%;max-width:340px;padding:var(--space-lg);border:1px solid var(--border-active);border-radius:var(--radius-lg);background:var(--surface-card);box-shadow:var(--shadow-lg);text-align:center;animation:.2s slideUp}.runner-confirm-title{margin-bottom:var(--space-sm);font-size:1.125rem}.runner-confirm-text{margin-bottom:var(--space-lg);color:var(--text-muted);font-size:.875rem}.runner-confirm-actions{gap:var(--space-sm);flex-direction:column;display:flex}.runner-confirm-btn{min-height:48px;padding:0 var(--space-md);border-radius:var(--radius);font-family:var(--font-body);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;border:none;font-size:1rem;font-weight:600;transition:transform .15s,background .2s}.runner-confirm-btn:active{transform:scale(.97)}.runner-confirm-btn--keep{background:var(--gradient-accent);color:#04121a}.runner-confirm-btn--abandon{color:var(--danger);background:0 0}.runner-confirm-btn--abandon:hover{background:var(--surface-glass)}.runner-exercise-area--countdown .runner-illustration{opacity:.55;transition:opacity .2s}.runner-countdown{align-items:center;gap:var(--space-xs);margin-top:var(--space-xs);flex-direction:column;display:flex}.runner-countdown-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:2px;font-size:.8125rem;font-weight:600}.runner-countdown-value{color:var(--accent);font-size:4rem;font-weight:800;line-height:1;font-family:var(--font-mono);animation:.6s ease-out pulse}.runner-rest{justify-content:center;align-items:center;gap:var(--space-sm);text-align:center;flex-direction:column;flex:1;animation:.3s fadeIn;display:flex}.runner-rest-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:2px;font-size:.8125rem;font-weight:600}.runner-rest-value{color:var(--accent);font-size:4.5rem;font-weight:800;line-height:1;font-family:var(--font-mono);letter-spacing:-.02em}.runner-rest-bar{background:var(--border-active);width:70%;height:6px;margin-top:var(--space-xs);border-radius:999px;overflow:hidden}.runner-rest-bar-fill{background:var(--gradient-accent);border-radius:999px;height:100%;transition:width .1s 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