:root{
  --bg:#0b1f3a; --panel:#12294a; --ink:#eaf1fb; --muted:#9fb3d1; --line:#21406e;
  --brand:#3b82f6; --ok:#2ecc71; --err:#ff6b6b; --radius:12px;
}
*{box-sizing:border-box}
body{margin:0;font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
.app-root{max-width:560px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:5}
.brand{font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:.5px}
.topbar-right{display:flex;align-items:center;gap:12px}
.who{color:var(--muted);font-size:14px}
.content{flex:1;padding:16px}
.screen{animation:fade .15s ease}
@keyframes fade{from{opacity:.4}to{opacity:1}}
h1{font-size:22px;margin:.2em 0 .6em}
h2{font-size:17px;margin:.4em 0}
.muted{color:var(--muted)}
.error{color:var(--err)}
.btn{appearance:none;border:1px solid var(--line);background:var(--panel);color:var(--ink);padding:10px 14px;border-radius:var(--radius);font-size:15px;cursor:pointer}
.btn.primary{background:var(--brand);border-color:var(--brand)}
.btn.small{padding:6px 10px;font-size:13px}
.btn.link{background:none;border:none;color:var(--muted);padding:6px}
.field{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius);background:#0e244a;color:var(--ink);font-size:16px;margin:4px 0 10px}
.field.num{max-width:140px}
.lbl{display:block;color:var(--muted);font-size:13px;margin-top:6px}
.row{display:flex;flex-direction:column;margin-bottom:8px}
.status{color:var(--ok);font-size:13px;min-height:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin:12px 0}
.home-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tile{display:flex;align-items:center;justify-content:center;min-height:72px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);color:var(--ink);text-decoration:none;font-weight:600}
.measurements{list-style:none;padding:0;margin:0}
.measurements li{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line)}
.when{color:var(--muted);font-size:13px}
.actions{display:flex;gap:10px;margin-top:10px}
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;padding:20px;z-index:20}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:16px;max-width:420px;width:100%;padding:20px}
.modal-actions{display:flex;justify-content:flex-end;margin-top:14px}
.whatsnew-list{margin:8px 0 0;padding-left:18px}
.whatsnew-list li{margin:6px 0}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:18px;background:var(--panel);border:1px solid var(--brand);border-radius:999px;padding:8px 12px;display:flex;align-items:center;gap:10px;z-index:30}
.auth{max-width:360px}
.stub p{color:var(--muted)}

/* ---- Workout runner (step: runner) ---- */
.btn.block{display:block;width:100%;margin:8px 0}
.runner h1{margin-bottom:.4em}
.runner-pick .muted{margin-bottom:10px}
.pager{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:6px 0}
.pager-pos{color:var(--muted);font-size:13px}
.ex-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.pill{background:#0e244a;border:1px solid var(--line);border-radius:999px;padding:2px 9px;font-size:12px;color:var(--muted)}
.hint{margin:.3em 0 .6em}
.caution{color:#e7b53d;font-size:13px;margin:.2em 0 .5em}
.target-line{color:var(--muted);font-size:13px;margin:.2em 0 .6em}
.log-row{display:flex;gap:12px}
.log-row label{flex:1;display:flex;flex-direction:column}
.effort-label{color:var(--muted);font-size:13px;margin:6px 0 4px}
.effort{display:flex;gap:6px;margin-bottom:10px}
.effort-btn{flex:1;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:9px;padding:9px 4px;font-size:15px;cursor:pointer}
.effort-btn.default{border-style:dashed}
.effort-btn.sel{background:var(--brand);border-color:var(--brand);color:#fff}
.sets-done{color:var(--muted);font-size:13px;margin-top:8px}
.rest{border-color:var(--brand)}
.rest.clinical{border-color:#3a6a4b}
.rest-top{display:flex;justify-content:space-between;align-items:baseline}
.rest-label{color:var(--muted);font-size:13px}
.rest-time{font-size:22px;font-weight:700}
.rest-bar{height:6px;background:#0e244a;border-radius:999px;overflow:hidden;margin:8px 0}
.rest-fill{height:100%;background:var(--brand);transition:width .25s linear}
.rest-controls{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.btn.finish{display:block;width:100%;margin:14px 0}
.browse{margin:10px 0}
.browse summary{cursor:pointer;color:var(--brand);font-size:14px;padding:4px 0}
.browse .count{font-size:12px;margin:4px 0}
.browse-list{max-height:280px;overflow:auto}
.browse-row{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:7px 0;border-bottom:1px solid var(--line)}
.bname{font-size:14px}
.top-flash{min-height:0;color:var(--ok);font-size:13px;text-align:center;opacity:0;transition:opacity .2s}
.top-flash.show{opacity:1;min-height:18px;margin-bottom:6px}
.caution-toggle{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin:6px 0}
.cbadge{color:#e7b53d;font-size:11px;text-transform:uppercase;letter-spacing:.04em}

/* ---- Workout history (step: history) ---- */
.history-session .hist-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:8px}
.hist-date{font-weight:600}
.hist-exercises{list-style:none;padding:0;margin:0}
.hist-ex{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--line)}
.hist-ex:last-child{border-bottom:none}
.hist-ex-name{font-size:14px}
.hist-ex-sets{color:var(--muted);font-size:13px;text-align:right}