:root{
  --bg:#0A0A0C;
  --surface:#141519;
  --surface2:#1E2026;
  --surface3:#2A2D35;
  --line:#26282F;
  --text:#F4F5F7;
  --dim:#83878F;
  --dimmer:#585C64;
  --accent:#D4AF37;
  --accent-soft:#E4C96B;
  --accent-deep:#A8842B;
  --accent-grad:linear-gradient(165deg,#EBD588 0%,#D4AF37 45%,#B08C2A 100%);
  --accent-ink:#191204;
  --danger:#FF5C4D;
  --up:#7CE38B;
  --down:#FF8A7A;
  --r:16px;
  --tap:52px;
  --safe-t:env(safe-area-inset-top,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}

html,body{height:100%;overflow:hidden;overscroll-behavior:none}

body{
  background:var(--bg);
  color:var(--text);
  font:500 16px/1.35 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  -webkit-user-select:none;user-select:none;
  touch-action:manipulation;
}

button,input{font:inherit;color:inherit;background:none;border:0;font-variant-numeric:tabular-nums}
button{cursor:pointer}
svg{display:block;flex:none}
.ic{width:24px;height:24px;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none}
.ic.sm{width:18px;height:18px;stroke-width:2.2}
.ic.xs{width:14px;height:14px;stroke-width:2.4}
.ic.fill{fill:currentColor;stroke:none}

/* ---------- shell ---------- */
#app{position:fixed;top:0;left:0;width:100%;height:100dvh;height:var(--appH,100dvh);display:flex;flex-direction:column}

#screen{
  flex:1;
  overflow-y:auto;
  -webkit-overflow-scrolling:touch;
  overscroll-behavior:contain;
  padding:calc(var(--safe-t) + 8px) 16px 24px;
}

#tabs{
  flex:none;
  display:flex;
  border-top:1px solid var(--line);
  background:rgba(10,10,12,.92);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  padding-bottom:var(--safe-b);
}
#tabs.hide{display:none}
.tab{
  flex:1;height:56px;display:grid;place-items:center;
  color:var(--dimmer);position:relative;transition:color .15s;
}
.tab.on{color:var(--accent)}
.tab.on::after{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:3px;border-radius:0 0 3px 3px;background:var(--accent);
}

/* ---------- header ---------- */
.hdr{display:flex;align-items:center;gap:10px;min-height:44px;margin-bottom:14px}
.hdr h1{font-size:26px;font-weight:800;letter-spacing:-.02em;flex:1;min-width:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.iconbtn{
  width:40px;height:40px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--surface2);color:var(--text);transition:transform .1s,background .15s;
}
.iconbtn:active{transform:scale(.9)}
.iconbtn.ghost{background:none;color:var(--dim)}
.iconbtn.danger{background:none;color:var(--danger)}

/* ---------- exercise grid ---------- */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.card{
  position:relative;aspect-ratio:1/1.1;border-radius:var(--r);overflow:hidden;
  background:var(--surface);display:block;width:100%;text-align:left;
  transition:transform .12s;
}
.card:active{transform:scale(.96)}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card .fallback{position:absolute;inset:0;display:grid;place-items:center;color:rgba(255,255,255,.34)}
.card .fallback .ic{width:44px;height:44px;stroke-width:1.6}
.card .scrim{
  position:absolute;inset:auto 0 0 0;padding:26px 12px 11px;
  background:linear-gradient(transparent,rgba(0,0,0,.55) 42%,rgba(0,0,0,.88));
}
.card .nm{font-size:14.5px;font-weight:700;line-height:1.2;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .sub{display:flex;align-items:center;gap:4px;color:var(--accent-soft);font-size:12px;
  font-weight:700;margin-top:3px;opacity:.95}
.card.add{
  aspect-ratio:1/1.1;border:2px dashed var(--surface3);background:transparent;
  display:grid;place-items:center;color:var(--dimmer);
}
.card.add .ic{width:32px;height:32px}

/* ---------- empty ---------- */
.empty{display:grid;place-items:center;gap:14px;padding:64px 0;color:var(--dimmer);text-align:center}
.empty .ic{width:56px;height:56px;stroke-width:1.4}
.empty .big{font-size:34px;font-weight:800;color:var(--surface3)}

/* ---------- log screen ---------- */
.section{margin-top:22px}
.slabel{display:flex;align-items:center;gap:7px;color:var(--dimmer);margin-bottom:10px;padding-left:2px}
.slabel .spacer{flex:1}

.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  min-width:var(--tap);height:var(--tap);padding:0 15px;border-radius:14px;
  background:var(--surface2);font-size:19px;font-weight:700;letter-spacing:-.02em;
  display:grid;place-items:center;transition:transform .1s;
}
.chip:active{transform:scale(.92)}
.chip.on{background:var(--accent-grad);color:var(--accent-ink)}
.chip.add{background:none;border:2px dashed var(--surface3);color:var(--dimmer);padding:0;width:var(--tap)}
.chip.more{background:none;color:var(--dim);padding:0;width:var(--tap)}

.reps{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.rep{
  height:54px;border-radius:13px;background:var(--surface2);
  font-size:17px;font-weight:800;letter-spacing:-.03em;
  display:grid;place-items:center;transition:transform .1s,background .1s;
}
.rep.half{color:var(--dim);font-size:13.5px;font-weight:600;background:var(--surface)}
.rep:active{transform:scale(.9);background:var(--accent);color:var(--accent-ink)}
.rep.flash{animation:pop .45s ease-out}
@keyframes pop{
  0%{background:var(--accent);color:var(--accent-ink);transform:scale(1.06)}
  100%{}
}

/* ---------- set rows ---------- */
.setrow{
  display:flex;align-items:center;gap:12px;padding:13px 6px 13px 14px;
  border-radius:14px;background:var(--surface);margin-bottom:7px;
}
.setrow .idx{
  width:24px;height:24px;flex:none;border-radius:8px;background:var(--surface3);
  color:var(--dim);font-size:12px;font-weight:800;display:grid;place-items:center;
}
.setrow .val{font-size:21px;font-weight:800;letter-spacing:-.03em;display:flex;align-items:baseline;gap:6px}
.setrow .val .x{color:var(--dimmer);font-size:14px;font-weight:600}
.setrow .val .u{color:var(--dimmer);font-size:12px;font-weight:700}
.setrow .spacer{flex:1}
.setrow.ghost{background:none;border:1px dashed var(--line);opacity:.55}
.setrow.ghost .val{font-size:18px}
.setrow.pr{box-shadow:inset 0 0 0 1.5px var(--accent)}

.tally{display:flex;align-items:center;gap:5px;color:var(--dimmer);font-size:13px;font-weight:700}

/* ---------- progress ---------- */
.plist{display:flex;flex-direction:column;gap:8px}
.prow{display:flex;align-items:center;gap:12px;padding:10px;border-radius:14px;background:var(--surface);width:100%;text-align:left}
.prow:active{background:var(--surface2)}
.prow .th{width:46px;height:46px;flex:none;border-radius:11px;object-fit:cover;background:var(--surface2)}
.prow .thf{display:grid;place-items:center;color:var(--dimmer)}
.prow .meta{flex:1;min-width:0}
.prow .nm{font-size:15px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.prow .sub{display:flex;align-items:center;gap:5px;color:var(--dim);font-size:13px;font-weight:600;margin-top:2px}

.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:6px}
.stat{background:var(--surface);border-radius:14px;padding:12px 10px;display:grid;gap:5px;justify-items:center}
.stat .n{font-size:23px;font-weight:800;letter-spacing:-.03em;line-height:1}
.stat .c{color:var(--dimmer)}

.chartbox{background:var(--surface);border-radius:var(--r);padding:14px 10px 8px;margin-top:10px}
.chartbox svg{width:100%;height:150px;overflow:visible}

.sess{display:flex;align-items:center;gap:11px;padding:12px 14px;border-radius:14px;background:var(--surface);margin-bottom:7px;position:relative;overflow:hidden}
.sess .bar{position:absolute;inset:0 auto 0 0;background:var(--surface2);z-index:0}
.sess > *{position:relative;z-index:1}
.sess .d{color:var(--dim);font-size:12px;font-weight:700;width:52px;flex:none}
.sess .best{font-size:19px;font-weight:800;letter-spacing:-.03em;display:flex;align-items:baseline;gap:5px}
.sess .best .x{color:var(--dimmer);font-size:13px;font-weight:600}
.sess .spacer{flex:1}
.sess .trend{display:flex;align-items:center;gap:3px;font-size:13px;font-weight:800}
.trend.up{color:var(--up)} .trend.down{color:var(--down)} .trend.flat{color:var(--dimmer)}

/* ---------- sheet ---------- */
.sheet-wrap{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;justify-content:flex-end}
.sheet-scrim{position:absolute;inset:0;background:rgba(0,0,0,.6);animation:fade .2s}
.sheet{
  position:relative;background:var(--surface);border-radius:26px 26px 0 0;
  padding:10px 16px calc(var(--safe-b) + 18px);max-height:88vh;overflow-y:auto;
  animation:slideup .26s cubic-bezier(.2,.9,.3,1);
}
@keyframes fade{from{opacity:0}}
@keyframes slideup{from{transform:translateY(100%)}}
.grab{width:38px;height:4px;border-radius:4px;background:var(--surface3);margin:0 auto 16px}

.field{
  width:100%;height:56px;padding:0 16px;border-radius:14px;background:var(--surface2);
  font-size:18px;font-weight:600;margin-bottom:10px;
}
.field::placeholder{color:var(--dimmer);font-weight:500}
.field:focus{outline:2px solid var(--accent);outline-offset:-2px}

.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.btn{
  height:56px;border-radius:14px;background:var(--surface2);
  display:flex;align-items:center;justify-content:center;gap:9px;
  font-size:16px;font-weight:700;transition:transform .1s;
}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--accent-grad);color:var(--accent-ink)}
.btn.danger{color:var(--danger)}
.btn.wide{width:100%;margin-bottom:10px}

.preview{
  width:100%;aspect-ratio:16/10;border-radius:14px;object-fit:cover;
  background:var(--surface2);margin-bottom:10px;display:block;
}

.menu{display:flex;flex-direction:column}
.menu button{
  display:flex;align-items:center;gap:14px;padding:16px 6px;
  font-size:17px;font-weight:600;text-align:left;border-bottom:1px solid var(--line);
}
.menu button:last-child{border-bottom:0}
.menu button .ic{color:var(--dim)}
.menu button.danger,.menu button.danger .ic{color:var(--danger)}

.wchips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.wchip{
  height:44px;padding:0 12px;border-radius:12px;background:var(--surface2);
  display:flex;align-items:center;gap:7px;font-size:16px;font-weight:700;
}
.wchip .ic{color:var(--dimmer)}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:calc(var(--safe-b) + 74px);transform:translateX(-50%);
  background:var(--accent-grad);color:var(--accent-ink);padding:11px 18px;border-radius:99px;
  font-size:15px;font-weight:800;z-index:60;display:flex;align-items:center;gap:8px;
  animation:toastin .25s cubic-bezier(.2,.9,.3,1);white-space:nowrap;
  box-shadow:0 8px 30px rgba(0,0,0,.5);
}
@keyframes toastin{from{transform:translate(-50%,16px);opacity:0}}
.toast[hidden]{display:none}
[hidden]{display:none}

.fade{animation:fade .2s}

/* micro-labels */
.cap{font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--dimmer)}
.dots{letter-spacing:3px;color:var(--dim);font-size:11px}

/* date picker */
.datebtn{display:flex;align-items:center;gap:5px;color:var(--dimmer);padding:4px 6px;margin:-4px 0 -4px -6px;border-radius:9px}
.datebtn .cap{color:inherit}
.datebtn.past{color:var(--accent)}
.daysrow{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin-bottom:12px;direction:rtl}
.daychip{direction:ltr;display:grid;justify-items:center;gap:2px;padding:10px 0 8px;border-radius:13px;background:var(--surface2)}
.daychip .dw{font-size:10px;font-weight:800;letter-spacing:.08em;color:var(--dimmer)}
.daychip .dn{font-size:17px;font-weight:800}
.daychip .dd{width:4px;height:4px;border-radius:99px;background:transparent}
.daychip .dd.yes{background:var(--accent)}
.daychip.on{background:var(--accent-grad);color:var(--accent-ink)}
.daychip.on .dw{color:var(--accent-ink);opacity:.7}
.daychip.on .dd.yes{background:var(--accent-ink)}