:root{
  --bg:#f3f7f5;--card:#fff;--ink:#17332d;--muted:#6d7e79;--line:#d7e3de;--accent:#1f6a58;--accent2:#dfeee9;--danger:#a13a3a;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);background:var(--bg)
}
*{box-sizing:border-box} body{margin:0;min-height:100vh;background:var(--bg)}
button,input{font:inherit} button{cursor:pointer;min-height:44px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;color:#fff;background:linear-gradient(135deg,#183d35,#2d7461)}
.topbar h1{margin:0;font-size:24px}.topbar p{margin:2px 0 0;opacity:.8}.version{font-size:12px;font-weight:800;border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:4px 9px}
main{max-width:760px;margin:0 auto;padding:16px}.view{display:none}.view.active{display:block}
.toolbar,.setup-actions{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;margin-bottom:14px}
.primary,.secondary,.danger{border-radius:14px;padding:11px 15px;border:1px solid var(--line);font-weight:800}
.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.secondary{background:#fff;color:var(--ink)}.danger{background:#fff0f0;color:var(--danger)}
.primary:disabled{opacity:.45;cursor:not-allowed}.big{min-width:140px;font-size:18px}
.workout-list{display:grid;gap:10px}.workout-card{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}
.workout-card h3{margin:0 0 4px}.meta,.muted{font-size:12px;color:var(--muted)}.card-actions{display:flex;gap:8px;flex-wrap:wrap}
.empty{margin-top:80px;text-align:center;color:var(--muted);display:grid;gap:8px}
.setup-head{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px}.setup-head h2{margin:0 0 4px}
.exercise-settings{display:grid;gap:10px}.exercise-setting{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}
.exercise-setting-top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.exercise-setting h3{margin:0 0 4px}.duration-line{display:grid;grid-template-columns:48px minmax(0,1fr) 48px 64px;gap:8px;align-items:center;margin-top:12px}
.duration-line input[type="range"]{width:100%;accent-color:var(--accent)}
.duration-value{text-align:right;font-weight:900;font-variant-numeric:tabular-nums}
.step-btn{border:1px solid var(--line);background:#fff;border-radius:12px;min-height:44px}
.player-shell{background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px}
.exercise-head{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:2px 2px 10px}.exercise-head strong{display:block;font-size:20px}.eyebrow{display:block;font-size:12px;color:var(--muted);margin-bottom:3px}
.countdown{font-size:34px;font-weight:900;font-variant-numeric:tabular-nums}
video{display:block;width:100%;max-height:64vh;background:#000;border-radius:14px}
.pause-panel{margin-top:10px;border-radius:14px;padding:16px;text-align:center;background:var(--accent2);color:var(--accent);display:grid;gap:4px}
.pause-panel span{font-size:30px;font-weight:900}.hidden{display:none!important}
.player-meta{display:flex;justify-content:space-between;gap:12px;padding:10px 2px;color:var(--muted);font-size:12px}
.controls{display:grid;grid-template-columns:.7fr 1.4fr .7fr 1fr;gap:8px;margin-top:4px}
@media(max-width:560px){
  main{padding:10px}.workout-card{grid-template-columns:1fr}.card-actions>*{flex:1}
  .setup-actions{justify-content:stretch}.setup-actions>*{flex:1}
  .duration-line{grid-template-columns:44px minmax(0,1fr) 44px}.duration-value{grid-column:1/-1;text-align:center}
  .controls{grid-template-columns:1fr 1.5fr 1fr}.controls #stopBtn{grid-column:1/-1}
}
.master-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;margin:0 0 14px;
}
.master-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}
.master-head>div{display:grid;gap:3px}.master-head span{font-size:12px;color:var(--muted)}
.master-head>strong:last-child{font-size:20px;font-variant-numeric:tabular-nums}
#masterScale{width:100%;accent-color:var(--accent)}
.exercise-time-btn{
  border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 14px;
  min-width:92px;font-weight:900;font-size:18px;font-variant-numeric:tabular-nums;color:var(--ink)
}
.exercise-setting-top{align-items:center}
.duration-picker{
  position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.48);
  display:grid;place-items:end center;padding:16px
}
.duration-picker-card{
  width:min(520px,100%);background:var(--card);border-radius:22px;padding:16px;
  border:1px solid var(--line)
}
.duration-picker-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:16px}
.duration-picker-head>div{display:grid;gap:4px}.duration-picker-head span{color:var(--muted);font-size:13px}
.duration-selects{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.duration-selects label{display:grid;gap:7px;font-size:12px;font-weight:800;color:var(--muted)}
.duration-selects select{
  width:100%;min-height:52px;border:1px solid var(--line);border-radius:14px;padding:10px 12px;
  background:#fff;color:var(--ink);font-size:20px;font-weight:800
}
.wide{width:100%}
@media(max-width:560px){
  .duration-picker{padding:10px}
  .duration-picker-card{border-radius:20px 20px 0 0}
}

.exercise-setting{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:14px;
  align-items:stretch;
}
.exercise-setting-main{
  min-width:0;
  min-height:118px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.exercise-setting-top{display:block}
.exercise-setting-controls{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:10px;
  flex-wrap:wrap;
}
.exercise-preview-wrap{
  position:relative;
  width:136px;
  height:118px;
  border-radius:14px;
  overflow:hidden;
  background:#101513;
  border:1px solid var(--line);
  flex:0 0 auto;
}
.exercise-preview{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  background:#101513;
}
.exercise-preview-wrap::after{
  content:'▶';
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  color:#fff;
  font-size:28px;
  background:rgba(0,0,0,.22);
  pointer-events:none;
  transition:opacity .15s ease;
}
.exercise-preview-wrap.playing::after{opacity:0}
.exercise-preview-wrap.unavailable::after{
  content:'—';
  background:rgba(0,0,0,.35);
}
@media(max-width:560px){
  .exercise-setting{grid-template-columns:minmax(0,1fr) 124px}
  .exercise-setting-main{min-height:108px}
  .exercise-preview-wrap{width:124px;height:108px}
  .exercise-setting h3{font-size:18px}
  .exercise-setting .meta{font-size:11px}
}

.exercise-preview-side{
  display:grid;
  grid-template-columns:34px auto;
  gap:8px;
  align-items:center;
}
.exercise-enabled-label{
  width:34px;
  height:100%;
  min-height:44px;
  display:grid;
  place-items:center;
}
.exercise-enabled{
  width:24px;
  height:24px;
  accent-color:var(--accent);
}
.exercise-setting.skipped{
  opacity:.62;
}
.exercise-setting.skipped .exercise-preview-wrap{
  filter:grayscale(.45);
}
@media(max-width:560px){
  .exercise-setting{grid-template-columns:minmax(0,1fr) 166px}
  .exercise-preview-side{grid-template-columns:30px 128px;gap:8px}
  .exercise-preview-wrap{width:128px;height:108px}
  .exercise-enabled{width:22px;height:22px}
}

.exercise-setting{
  position:relative;
}
.exercise-drag-handle{
  position:absolute;
  left:-2px;
  top:50%;
  transform:translateY(-50%);
  width:28px;
  min-height:64px;
  border:none;
  background:transparent;
  color:var(--muted);
  font-size:24px;
  font-weight:900;
  cursor:grab;
  touch-action:none;
}
.exercise-drag-handle:active{cursor:grabbing}
.exercise-setting{
  padding-left:40px;
}
.exercise-setting.dragging{
  opacity:.55;
  outline:2px dashed var(--accent);
}
.exercise-setting.drop-before::before,
.exercise-setting.drop-after::after{
  content:'';
  position:absolute;
  left:12px;
  right:12px;
  height:4px;
  border-radius:999px;
  background:var(--accent);
}
.exercise-setting.drop-before::before{top:-6px}
.exercise-setting.drop-after::after{bottom:-6px}
@media(max-width:560px){
  .exercise-setting{padding-left:36px}
  .exercise-drag-handle{width:24px;font-size:22px}
}