*{margin:0;padding:0;box-sizing:border-box}:root{--color-primary: #ff6b6b;--color-secondary: #4a4a4a;--color-success: #51cf66;--color-bg: #1a1a1a;--color-surface: #2d2d2d;--color-text: #ffffff;--color-text-muted: #b0b0b0;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius: 8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.6}#app{min-height:100dvh;display:flex;flex-direction:column}.screen{display:none;flex:1;padding:var(--spacing-lg);max-width:500px;margin:0 auto;width:100%;animation:fadeIn .3s ease-in}.screen.active{display:flex;flex-direction:column}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}#setup-screen{justify-content:center}#setup-screen h1{text-align:center;margin-bottom:var(--spacing-xl);font-size:28px}#setup-form{display:flex;flex-direction:column;gap:var(--spacing-lg)}.form-group{display:flex;flex-direction:column;gap:var(--spacing-sm)}.form-group label{font-weight:600;font-size:16px;color:var(--color-text-muted)}.form-group input{padding:var(--spacing-md);border:2px solid var(--color-surface);border-radius:var(--radius);background-color:var(--color-surface);color:var(--color-text);font-size:18px;font-weight:600;transition:border-color .2s}.form-group input:focus{outline:none;border-color:var(--color-primary)}#workout-screen{flex-direction:column}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg);gap:var(--spacing-md);flex-wrap:wrap}.header h1{font-size:24px;flex:1}.timer-section{display:flex;align-items:center;gap:var(--spacing-sm);background-color:var(--color-surface);padding:var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) var(--spacing-md);border-radius:var(--radius)}.timer-display{font-size:20px;font-weight:600;font-family:Courier New,monospace;min-width:60px;color:var(--color-primary)}.progress-grid{display:grid;grid-template-columns:1fr;gap:var(--spacing-lg);flex:1}@media(min-width:600px){.progress-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}}.progress-card{background-color:var(--color-surface);border-radius:var(--radius);padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md);transition:transform .2s,box-shadow .2s}.progress-card:has(.progress-fill[style*=" 0%"]){outline:2px solid var(--color-success)}.progress-card h2{font-size:18px;font-weight:600}.reps-display{display:flex;align-items:baseline;justify-content:center;gap:var(--spacing-md);font-size:32px;font-weight:700}.reps-display .current{color:var(--color-primary)}.reps-display .current.complete{color:#51cf66;font-weight:700}.reps-display .separator{font-size:20px;color:var(--color-text-muted)}.reps-display .total{color:var(--color-text-muted);font-size:24px}.reps-display .bonus{color:#51cf66;font-weight:700;font-size:18px;margin-left:12px;display:inline-block;opacity:0;transition:opacity .2s ease}.reps-display .bonus.show{animation:bonusReps .4s cubic-bezier(.34,1.56,.64,1) forwards}@keyframes bonusReps{0%{opacity:0;transform:scale(.5) rotate(-15deg)}50%{opacity:1}to{opacity:1;transform:scale(1.1) rotate(8deg)}}.progress-bar{width:100%;height:8px;background-color:var(--color-bg);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),#ff8787);transition:width .2s ease;width:0%}.button-group{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-sm)}.btn{padding:var(--spacing-md);border:none;border-radius:var(--radius);font-weight:600;font-size:16px;cursor:pointer;transition:all .2s;active:none}.btn:active{transform:scale(.95)}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:active{background-color:#ff5252}.btn-secondary{background-color:var(--color-secondary);color:var(--color-text)}.btn-secondary:active{background-color:#3a3a3a}.btn-success{background-color:var(--color-success);color:#000;font-weight:700}.btn-success:active{background-color:#40c057}.btn-minus{background-color:var(--color-secondary);color:var(--color-text);padding:var(--spacing-md) var(--spacing-sm);font-size:14px;pointer-events:auto;cursor:pointer;border:none;flex:1}.btn-minus:active{background-color:var(--color-primary)}.btn-large{padding:var(--spacing-lg) var(--spacing-xl);font-size:18px}.btn-small{padding:var(--spacing-sm) var(--spacing-md);font-size:14px}#complete-screen{justify-content:center;align-items:center}.complete-message{text-align:center}.complete-message h1{font-size:36px;margin-bottom:var(--spacing-lg)}.complete-message p{font-size:18px;color:var(--color-text-muted);margin-bottom:var(--spacing-xl)}@media(max-width:480px){.screen{padding:var(--spacing-md)}#setup-screen h1,.reps-display{font-size:24px}.reps-display .current{font-size:28px}.progress-card{padding:var(--spacing-md)}}.dialog-overlay{position:fixed;inset:0;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000}.dialog-overlay.hidden{display:none}.dialog{background-color:var(--color-surface);border-radius:var(--radius);padding:var(--spacing-lg);max-width:300px;box-shadow:0 10px 40px #00000080;animation:slideUp .3s ease-out}.dialog h2{margin-bottom:var(--spacing-md);font-size:20px}.dialog p{color:var(--color-text-muted);margin-bottom:var(--spacing-lg)}.dialog-buttons{display:flex;gap:var(--spacing-md)}.dialog-buttons .btn{flex:1}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}