:root{--bg:#f6f7f9;--surface:#fff;--surface-2:#eef2f7;--ink:#111827;--muted:#667085;--line:#d6dbe4;--brand:#2563eb;--brand-dark:#1d4ed8;--green:#047857;--danger:#dc2626;--shadow:0 14px 40px #0f172a14}*{box-sizing:border-box}html{background:var(--bg);min-height:100%}body{color:var(--ink);background:var(--bg);margin:0;font-family:Arial,Helvetica,sans-serif}button,input,select,textarea{font:inherit}button{border:1px solid var(--line);background:var(--surface);min-height:42px;color:var(--ink);cursor:pointer;border-radius:8px;padding:0 14px}button:hover{border-color:var(--brand)}button.primary,.gateForm button{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}button.primary:hover,.gateForm button:hover{background:var(--brand-dark)}button.ghost{background:0 0;min-height:36px}button:disabled{cursor:not-allowed;opacity:.45}button.danger,.danger{color:var(--danger)}input,select,textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:8px;padding:11px 12px}textarea{resize:vertical}label{color:var(--muted);gap:7px;font-size:.9rem;display:grid}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--line);padding:12px}th{color:var(--muted);text-transform:uppercase;font-size:.82rem}.gate{background:linear-gradient(140deg,#f6f7f9,#dff2ea 55%,#e8eefc);place-items:center;min-height:100vh;padding:24px;display:grid}.gatePanel{border:1px solid var(--line);width:min(440px,100%);box-shadow:var(--shadow);background:#fff;border-radius:8px;padding:28px}.gatePanel h1{margin:2px 0 8px;font-size:clamp(2rem,7vw,3rem)}.gateForm{grid-template-columns:1fr auto;gap:10px;margin-top:22px;display:grid}.shell{width:min(1240px,100%);margin:0 auto;padding:20px}.topbar{grid-template-columns:1fr auto;align-items:end;gap:20px;margin-bottom:22px;display:grid}.topbar h1{margin:0;font-size:clamp(1.9rem,5vw,3.2rem)}.eyebrow{text-transform:uppercase;letter-spacing:0;color:var(--green);margin:0 0 5px;font-size:.78rem;font-weight:800}.muted,.hint{color:var(--muted)}.error{color:var(--danger)}.success{color:var(--green);font-weight:700}.nav{flex-wrap:wrap;gap:8px;display:flex}.nav button.active,.listItem.active{background:var(--brand);color:#fff;border-color:var(--brand)}.viewStack{gap:18px;display:grid}.compact{gap:14px}.panel,.stat{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;padding:18px}.stat{align-content:center;gap:8px;min-height:104px;display:grid}.stat span{color:var(--muted)}.stat strong{font-size:clamp(1.5rem,5vw,2.2rem)}.statsGrid{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.chartGrid{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}.chartPanel{min-height:330px}.sectionTitle{margin-bottom:16px}.sectionTitle h2,.sectionTitle h3{margin:0}.sectionTitle 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1fr}.addSetButton{width:100%;color:var(--brand);background:#f8fbff;border-style:dashed;margin-top:12px;font-weight:700}.addExercisePanel button{width:100%}.templateLayout,.historyLayout{grid-template-columns:320px 1fr;align-items:start;gap:18px;display:grid}.templateList,.historyList{gap:10px;display:grid;position:sticky;top:16px}.listItem{text-align:left;justify-items:start;gap:4px;width:100%;height:auto;padding:12px;display:grid}.listItem span{color:inherit;opacity:.74;font-size:.88rem}.customBox{grid-template-columns:1fr 180px auto;gap:8px;display:grid}.templateExercises{gap:10px;display:grid}.templateExercise{border:1px solid var(--line);background:var(--surface-2);cursor:grab;border-radius:8px;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px;display:grid}.templateExercise.dragging{border-color:var(--brand);opacity:.72;box-shadow:0 10px 24px #2563eb29}.dragHandle{border:1px solid var(--line);width:34px;height:42px;color:var(--muted);letter-spacing:0;background:#fff;border-radius:8px;place-items:center;font-weight:800;display:grid}.routineExerciseText{gap:3px;min-width:0;display:grid}.routineExerciseText strong{overflow-wrap:anywhere}.routineExerciseText span{color:var(--muted);font-size:.86rem}.routineActions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.historyExercise{border:1px solid var(--line);background:var(--surface-2);border-radius:8px;gap:10px;padding:14px;display:grid}.historyExercise h3{margin:0}@media (max-width:900px){.topbar,.chartGrid,.templateLayout,.historyLayout,.fieldGrid.two{grid-template-columns:1fr}.statsGrid{grid-template-columns:repeat(2,1fr)}.templateList,.historyList{position:static}.customBox{grid-template-columns:1fr}}@media (max-width:640px){.shell{padding:12px}.topbar{align-items:start}.nav{grid-template-columns:repeat(2,1fr);display:grid}.nav button{min-height:48px}.statsGrid{grid-template-columns:1fr}.split{flex-direction:column;align-items:stretch}.split select{max-width:none}.panel,.stat{padding:14px}.setRow,.setRow.history{grid-template-columns:38px 1fr 1fr}.setRow .ghost{grid-column:2/-1}.gateForm{grid-template-columns:1fr}.templateExercise{grid-template-columns:34px 1fr;align-items:stretch}.routineActions{grid-column:1/-1;justify-content:stretch}.routineActions button{flex:1}}