:root{
  --bg:#0f1115;
  --panel:#171a21;
  --card:#1d222b;
  --border:#303744;
  --text:#f4f7fb;
  --muted:#9ca7b7;
  --accent:#6ea8fe;
  --accent-soft:#203a63;
  --danger:#ff7b7b;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body{min-height:100vh}
button,input,select{font:inherit}
button{cursor:pointer}
.app-shell{max-width:780px;margin:0 auto;padding:env(safe-area-inset-top) 14px calc(92px + env(safe-area-inset-bottom))}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 2px 8px}
.topbar h1{margin:2px 0 0;font-size:24px}
.eyebrow{font-size:11px;letter-spacing:.15em;color:var(--accent);font-weight:800}
.page{display:none}
.active-page{display:block}
.page-title{margin:8px 2px 14px}
.page-title h2{margin:0 0 4px}
.card,.metric-card{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:16px;margin-bottom:14px}
.metric-card{background:var(--card);margin:0}
.workout-header-card{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}
.workout-header-card h2{margin:4px 0;font-size:20px}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}
.metric-grid.two{grid-template-columns:repeat(2,1fr)}
.metric-value{font-size:21px;font-weight:800;margin-top:4px}
.muted{color:var(--muted)}
.muted-label{font-size:12px;color:var(--muted)}
.small{font-size:13px}
.tiny{font-size:11px}
h3{margin:0 0 12px}
.section-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}
.stack>*+*{margin-top:8px}
.primary-btn,.ghost-btn{border-radius:12px;font-weight:800;min-height:44px;padding:0 14px}
.primary-btn{background:var(--accent-soft);border:1px solid var(--accent);color:var(--text)}
.ghost-btn{background:transparent;border:1px solid var(--border);color:var(--text)}
.primary-btn.full{width:100%;min-height:50px}
.compact{min-height:40px;padding:0 12px}
.hidden{display:none!important}
.field-grid{display:grid;gap:8px}
.field-grid.three{grid-template-columns:repeat(3,1fr)}
label span,.field-block span{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}
input,select{width:100%;min-height:44px;padding:0 12px;border:1px solid var(--border);border-radius:12px;background:#11141a;color:var(--text)}
.field-block{display:block;margin-bottom:12px}
.target-box,.info-strip,.workout-row,.history-row,.percentage-row{border:1px solid var(--border);background:var(--card);border-radius:14px;padding:12px}
.target-box{margin-bottom:12px}
.info-strip{display:flex;justify-content:space-between;gap:10px;font-size:13px;margin-bottom:12px}
.workout-row{width:100%;text-align:left;color:var(--text)}
.workout-row .row-top{display:flex;justify-content:space-between;gap:10px}
.form-msg{margin-top:8px;min-height:18px}
.calendar-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.calendar-labels{font-size:11px;color:var(--muted);text-align:center;margin-bottom:5px}
.cal-day{aspect-ratio:1;border:1px solid var(--border);background:#11141a;color:var(--text);border-radius:10px;position:relative}
.cal-day.empty{visibility:hidden}
.cal-day.has-workout{background:var(--accent-soft);border-color:var(--accent);font-weight:800}
.cal-day.selected{outline:2px solid var(--accent)}
.dot{position:absolute;width:5px;height:5px;border-radius:50%;background:var(--accent);bottom:5px;left:50%;transform:translateX(-50%)}
.history-row strong{display:block}
.bottom-nav{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:min(780px,100%);display:grid;grid-template-columns:repeat(5,1fr);gap:4px;background:rgba(15,17,21,.96);border-top:1px solid var(--border);padding:8px 8px calc(8px + env(safe-area-inset-bottom));backdrop-filter:blur(16px)}
.nav-btn{border:0;background:transparent;color:var(--muted);min-height:50px;border-radius:12px;font-weight:700}
.nav-btn.active{background:var(--accent-soft);color:var(--text)}
@media(max-width:540px){
  .metric-value{font-size:17px}
  .metric-card{padding:12px 10px}
  .field-grid.three{grid-template-columns:repeat(3,1fr)}
  .info-strip{flex-direction:column}
  .topbar h1{font-size:22px}
}


.subsection{margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}
.two-col{grid-template-columns:1fr 1fr}
.editor-actions{display:flex;gap:8px;margin-top:16px}
.danger-btn{border:1px solid #733;color:#ffb1b1;background:#32191c;border-radius:12px;font-weight:800;min-height:44px;padding:0 14px}
.exercise-edit-row{border:1px solid var(--border);background:var(--card);border-radius:14px;padding:12px}
.exercise-edit-head{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:10px}
.exercise-edit-grid{display:grid;grid-template-columns:1.3fr repeat(4,.8fr);gap:6px}
.exercise-edit-grid label span{font-size:10px}
.remove-exercise-btn{border:1px solid var(--border);background:transparent;color:#ffaaaa;border-radius:10px;min-height:34px;padding:0 10px}
.suggestion-list{margin-top:10px;max-height:330px;overflow:auto;border-radius:14px}
.suggestion-item{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;border:1px solid var(--border);background:#11141a;color:var(--text);padding:11px 12px}
.suggestion-item:first-child{border-radius:12px 12px 0 0}
.suggestion-item:last-child{border-radius:0 0 12px 12px}
.suggestion-item:only-child{border-radius:12px}
.suggestion-item+.suggestion-item{border-top:0}
.muscle-pill{font-size:10px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 7px;white-space:nowrap}
.workout-card-actions{display:flex;gap:6px}
@media(max-width:600px){
  .two-col{grid-template-columns:1fr}
  .exercise-edit-grid{grid-template-columns:repeat(2,1fr)}
  .exercise-edit-grid .wide{grid-column:1 / -1}
  .editor-actions{flex-direction:column}
}