:root{--accent:#4f6ef7;--accent-dark:#3a57e8;--accent-light:#eef0fe;--bg:#f3f4f6;--bg-alt:#fafafa;--card:#fff;--text:#111827;--text-muted:#6b7280;--border:#e5e7eb;--danger:#ef4444;--danger-dark:#dc2626;--success:#10b981;--radius:14px;--radius-sm:8px;--shadow:0 2px 8px #00000012;--shadow-md:0 4px 20px #0000001f;--transition:.18s ease;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;font-size:16px}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;padding-bottom:76px;line-height:1.55}a{color:var(--accent)}button,input,select,textarea{touch-action:manipulation;font-family:inherit}ul{list-style:none}h1{font-size:1.7rem;font-weight:700;line-height:1.2}h2{font-size:1.35rem;font-weight:700}h3{font-size:1.1rem;font-weight:600}.container{max-width:640px;margin:0 auto;padding:0 1rem}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1.25rem 0 1rem;display:flex}.page-header h1{flex:1}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1rem;padding:1.25rem}.btn{border-radius:var(--radius-sm);cursor:pointer;transition:opacity var(--transition), background var(--transition);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:.35rem;min-height:48px;padding:.8rem 1.3rem;font-size:1rem;font-weight:600;line-height:1;text-decoration:none;display:inline-flex}.btn:active{opacity:.82}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark)}.btn-secondary{background:var(--card);color:var(--text);border:1.5px solid var(--border)}.btn-secondary:hover{background:var(--bg)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-dark)}.btn-sm{min-height:36px;padding:.5rem .85rem;font-size:.875rem}.btn-block{width:100%}.btn-ghost{color:var(--accent);cursor:pointer;min-height:unset;background:0 0;border:none;padding:.3rem 0;font-size:.9rem;font-weight:600;text-decoration:underline}.form-group{margin-bottom:1.2rem}label{color:var(--text);margin-bottom:.4rem;font-size:.88rem;font-weight:600;display:block}input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],select,textarea{border:1.5px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text);background:var(--card);transition:border-color var(--transition), box-shadow var(--transition);appearance:none;padding:.85rem 1rem;font-size:1rem}input[type=number]{font-size:1.1rem;font-weight:600}input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #4f6ef71f}.form-error{color:var(--danger);margin-top:.3rem;font-size:.8rem;font-weight:500}.form-hint{color:var(--text-muted);margin-top:.3rem;font-size:.8rem}.alert{border-radius:var(--radius-sm);margin-bottom:1rem;padding:.875rem 1rem;font-size:.9rem;font-weight:500}.alert-success{color:#065f46;border-left:4px solid var(--success);background:#d1fae5}.alert-error{color:#991b1b;border-left:4px solid var(--danger);background:#fee2e2}.nav-bottom{background:var(--card);border-top:1px solid var(--border);padding:.4rem 0 max(.4rem, env(safe-area-inset-bottom));z-index:200;justify-content:space-around;align-items:stretch;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 12px #00000012}.nav-item{color:var(--text-muted);border-radius:var(--radius-sm);transition:color var(--transition);letter-spacing:.01em;flex-direction:column;justify-content:center;align-items:center;gap:.12rem;min-width:52px;padding:.25rem .5rem;font-size:.65rem;font-weight:600;text-decoration:none;display:flex}.nav-item svg{stroke-width:1.75px;width:22px;height:22px}.nav-item.active,.nav-item:hover{color:var(--accent)}.nav-top{background:var(--card);border-bottom:1px solid var(--border);z-index:200;height:56px;box-shadow:var(--shadow);justify-content:space-between;align-items:center;padding:0 1.5rem;display:none;position:sticky;top:0}.nav-top-logo{color:var(--accent);letter-spacing:-.02em;font-size:1.15rem;font-weight:800;text-decoration:none}.nav-top-links{align-items:center;gap:1.25rem;display:flex}.nav-top-links a{color:var(--text-muted);transition:color var(--transition);font-size:.875rem;font-weight:600;text-decoration:none}.nav-top-links a:hover,.nav-top-links a.active{color:var(--accent)}.auth-wrap{background:var(--bg);flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:2rem 1rem;display:flex}.auth-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow-md);width:100%;max-width:400px;padding:2rem}.auth-logo{text-align:center;margin-bottom:1.75rem}.auth-logo h1{color:var(--accent);letter-spacing:-.03em;font-size:1.6rem;font-weight:800}.auth-logo p{color:var(--text-muted);margin-top:.25rem;font-size:.9rem}.list-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1rem;overflow:hidden}.list-item{border-bottom:1px solid var(--border);color:var(--text);transition:background var(--transition);justify-content:space-between;align-items:center;gap:.75rem;padding:1rem 1.25rem;text-decoration:none;display:flex}.list-item:last-child{border-bottom:none}.list-item:active{background:var(--bg)}.list-item-info{flex:1;min-width:0}.list-item-title{white-space:nowrap;text-overflow:ellipsis;font-size:1rem;font-weight:600;overflow:hidden}.list-item-sub{color:var(--text-muted);margin-top:.1rem;font-size:.8rem}.list-actions{flex-shrink:0;gap:.4rem;display:flex}.stats-grid{grid-template-columns:repeat(3,1fr);gap:.75rem;margin-bottom:1rem;display:grid}.stat-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;padding:1.1rem}.stat-number{color:var(--accent);font-size:1.9rem;font-weight:800;line-height:1}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-top:.3rem;font-size:.75rem;font-weight:600}.fab{background:var(--accent);color:#fff;width:54px;height:54px;box-shadow:var(--shadow-md);z-index:100;transition:background var(--transition), transform var(--transition);border-radius:50%;justify-content:center;align-items:center;font-size:1.6rem;text-decoration:none;display:flex;position:fixed;bottom:84px;right:1.25rem}.fab:hover{background:var(--accent-dark);transform:scale(1.07)}.exercise-block{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1rem;overflow:hidden}.exercise-block-header{background:var(--accent);color:#fff;padding:.85rem 1.25rem}.exercise-block-header h3{color:#fff;font-size:1rem}.exercise-prev{opacity:.85;margin-top:.15rem;font-size:.75rem}.set-col-header{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;grid-template-columns:36px 1fr 1fr 36px;gap:.5rem;padding:.5rem 1rem .25rem;font-size:.7rem;font-weight:700;display:grid}.set-rows{padding:.25rem 1rem .5rem}.set-row{grid-template-columns:36px 1fr 1fr 36px;align-items:center;gap:.5rem;margin-bottom:.4rem;display:grid}.set-row-num{color:var(--text-muted);text-align:center;font-size:.8rem;font-weight:700}.set-row input[type=number]{text-align:center;padding:.55rem .4rem;font-size:1rem}.set-row-del{width:34px;height:34px;color:var(--danger);cursor:pointer;transition:background var(--transition);background:#fee2e2;border:none;border-radius:6px;justify-content:center;align-items:center;font-size:1rem;display:flex}.set-row-del:hover{background:#fca5a5}.add-set-wrap{padding:.25rem 1rem .85rem}.workout-exercise{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:.75rem;overflow:hidden}.workout-exercise-title{background:var(--accent-light);color:var(--accent);border-bottom:1px solid var(--border);padding:.75rem 1.25rem;font-size:.95rem;font-weight:700}.sets-table{border-collapse:collapse;width:100%}.sets-table th{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);text-align:left;background:var(--bg-alt);border-bottom:1px solid var(--border);padding:.45rem 1rem;font-size:.72rem;font-weight:700}.sets-table td{border-bottom:1px solid var(--border);padding:.65rem 1rem;font-size:.95rem}.sets-table tr:last-child td{border-bottom:none}.chart-wrap{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:1rem;padding:1.25rem}.exercise-picker{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.exercise-picker-item{border-bottom:1px solid var(--border);align-items:center;gap:.75rem;padding:.85rem 1.25rem;display:flex}.exercise-picker-item:last-child{border-bottom:none}.exercise-picker-item input[type=checkbox]{width:20px;height:20px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}.exercise-picker-item label{cursor:pointer;flex:1;margin:0;font-size:.95rem;font-weight:500}.exercise-picker-item input[type=number]{text-align:center;width:54px;padding:.35rem .4rem;font-size:.875rem}.order-label{color:var(--text-muted);white-space:nowrap;font-size:.72rem;font-weight:600}.exercise-prev-ref{color:var(--text-muted);background:var(--accent-light);border-radius:var(--radius-sm);margin-top:.5rem;padding:.45rem .75rem;font-size:.78rem;line-height:1.4}html.dark .exercise-prev-ref{background:var(--accent-light);color:var(--text-muted)}.empty-state{text-align:center;padding:3rem 1rem 2rem}.empty-state-icon{margin-bottom:.75rem;font-size:3rem;line-height:1}.empty-state h3{margin-bottom:.4rem;font-size:1.1rem}.empty-state p{color:var(--text-muted);margin-bottom:1.25rem;font-size:.9rem}.badge{background:var(--accent-light);color:var(--accent);border-radius:99px;padding:.18rem .6rem;font-size:.72rem;font-weight:700;display:inline-block}.badge-muted{background:var(--bg);color:var(--text-muted)}.section-label{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-top:1.5rem;margin-bottom:.65rem;font-size:.75rem;font-weight:700}.section-label:first-child{margin-top:0}.text-center{text-align:center}.text-right{text-align:right}.text-muted{color:var(--text-muted)}.text-danger{color:var(--danger)}.d-flex{display:flex}.align-center{align-items:center}.justify-between{justify-content:space-between}.gap-1{gap:.5rem}.gap-2{gap:1rem}.flex-wrap{flex-wrap:wrap}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.pb-0{padding-bottom:0}.w-full{width:100%}form.inline{display:inline}.divider{background:var(--border);height:1px;margin:1rem 0}.theme-toggle{border:1.5px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;width:36px;height:36px;color:var(--text-muted);transition:color var(--transition), border-color var(--transition), background var(--transition);background:0 0;flex-shrink:0;justify-content:center;align-items:center;font-size:1.1rem;line-height:1;display:flex}.theme-toggle:hover{border-color:var(--accent);color:var(--accent)}.nav-bottom .theme-toggle{width:auto;height:auto;color:var(--text-muted);border-radius:var(--radius-sm);border:none;flex-direction:column;gap:.12rem;min-width:52px;padding:.25rem .5rem;font-size:.65rem;font-weight:600}.nav-bottom .theme-toggle svg{width:22px;height:22px}.nav-bottom .theme-toggle:hover{color:var(--accent)}html.dark{--bg:#0f1117;--bg-alt:#161b27;--card:#1c2130;--text:#f1f5f9;--text-muted:#8b9cb8;--border:#2a3347;--accent-light:#1a2344;--shadow:0 2px 8px #00000059;--shadow-md:0 4px 20px #0000008c}html.dark .alert-success{color:#a7f3d0;background:#064e3b}html.dark .alert-error{color:#fca5a5;background:#450a0a}html.dark .set-row-del{color:#f87171;background:#3b0f0f}html.dark .set-row-del:hover{background:#5c1a1a}html.dark .exercise-block-header{background:var(--accent-dark)}html.dark .workout-exercise-title{background:var(--accent-light);color:#93a8f0}@media (width>=640px){body{padding-bottom:0}.nav-bottom{display:none}.nav-top{display:flex!important}.fab{bottom:2rem}.stats-grid{grid-template-columns:repeat(3,1fr)}h1{font-size:2rem}}