/* ============================================================================
   BURN — iron and chalk
   ----------------------------------------------------------------------------
   Single visual world, committed dark. This is a phone held in a dim
   free-weight area; the plate colours only read against near-black, so every
   colour is painted explicitly rather than inherited from a host theme.

   THE COLOUR RULE: a plate colour never appears unless it denotes a real
   weight or a real state. Yellow means "you are here". Chalk means banked.
   Red means personal record. Everything else stays quiet.
   ========================================================================== */

:root{
  --iron:        #0B0B0C;
  --iron-raised: #141416;
  --iron-sunk:   #08080A;
  --iron-edge:   #232327;
  --iron-edge-2: #313137;

  --chalk:       #EDEAE3;
  --chalk-dim:   #8C8A85;
  --chalk-faint: #5A5955;

  --plate-red:    #D7262E;
  --plate-blue:   #1F6FD0;
  --plate-yellow: #E8B21F;
  --plate-green:  #2E9E5B;
  --plate-white:  #E8E6E1;
  --plate-grey:   #7C7C84;

  --display: 'Archivo', 'Helvetica Neue', 'Arial Narrow', sans-serif;
  --body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

  --pad: 20px;
  --ease: cubic-bezier(.32,.72,0,1);
  --tabh: 64px;

  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--iron);
  color:var(--chalk);
  font-family:var(--body);
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overscroll-behavior:none;
  -webkit-touch-callout:none;
  -webkit-user-select:none;user-select:none;
  overflow:hidden;
}
input,textarea{-webkit-user-select:text;user-select:text}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--plate-yellow);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:0;height:0}

/* ============================================================== typography */
.eyebrow{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--chalk-faint);
}
.eyebrow em{font-style:normal;color:var(--chalk-dim)}
.h1{
  font-family:var(--display);font-size:36px;line-height:.98;font-weight:800;
  font-stretch:125%;letter-spacing:-.01em;text-transform:uppercase;margin:9px 0 0;
}
.h2{
  font-family:var(--display);font-size:19px;line-height:1.1;font-weight:800;
  font-stretch:112%;letter-spacing:.02em;text-transform:uppercase;margin:0;
}
.h3{
  font-family:var(--display);font-size:15px;font-weight:700;font-stretch:112%;
  letter-spacing:.03em;text-transform:uppercase;margin:0;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.dim{color:var(--chalk-dim)}
.faint{color:var(--chalk-faint)}
.prose{font-size:14px;line-height:1.55;color:var(--chalk-dim)}
.section-label{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--plate-yellow);margin-bottom:10px;
}
.section-label[data-tone="warn"]{color:var(--plate-red)}
.section-label[data-tone="quiet"]{color:var(--chalk-faint)}

/* ============================================================== app shell */
#app{position:fixed;inset:0;overflow:hidden}
.screen{
  position:absolute;inset:0;display:flex;flex-direction:column;background:var(--iron);
}
.screen__scroll{
  flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;
}
.screen__scroll > .pad{padding:0 var(--pad)}
.bottom-space{height:calc(var(--tabh) + var(--safe-b) + 40px)}

/* pushed screens (focus, exercise detail) slide in from the right */
.stack{
  position:absolute;inset:0;z-index:20;background:var(--iron);
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .34s var(--ease);
  visibility:hidden;
}
.stack.is-open{transform:translateX(0);visibility:visible}

.head{padding:calc(var(--safe-t) + 22px) var(--pad) 0;flex:0 0 auto}
.head__top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}

/* ============================================================== tab bar */
.tabs{
  position:absolute;left:0;right:0;bottom:0;z-index:15;
  display:flex;background:rgba(11,11,12,.94);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-top:1px solid var(--iron-edge);
  padding-bottom:var(--safe-b);
}
.tab{
  flex:1;padding:11px 0 13px;display:flex;flex-direction:column;align-items:center;gap:5px;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.11em;text-transform:uppercase;
  color:var(--chalk-faint);transition:color .15s;
}
.tabs[hidden]{display:none}
.tab svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab[aria-current="page"]{color:var(--chalk)}

/* the app is a phone app; on a wide screen keep it in a readable column */
@media (min-width:760px){
  #app{max-width:430px;margin:0 auto;left:0;right:0;
       border-left:1px solid var(--iron-edge);border-right:1px solid var(--iron-edge)}
}

/* ============================================================== barcode */
/* one segment per set in the session — structure that encodes truth */
.barcode{display:flex;gap:2px;margin:18px 0 6px;height:5px}
.barcode i{flex:1;background:var(--iron-edge);border-radius:1px;transition:background .3s var(--ease)}
.barcode i.done{background:var(--chalk)}
.barcode i.here{background:var(--plate-yellow)}
.tally{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--chalk-faint);padding-bottom:16px;display:flex;justify-content:space-between;gap:12px;
}
.tally b{color:var(--chalk-dim);font-weight:400}

/* ============================================================== exercise row */
.list{padding:0}
.ex{
  width:100%;text-align:left;display:block;padding:15px var(--pad) 16px;
  border-top:1px solid var(--iron-edge);transition:background .12s;
}
.ex:active{background:var(--iron-raised)}
.ex.is-done{opacity:.42}
.ex__top{display:flex;align-items:baseline;gap:10px}
.ex__n{font-family:var(--mono);font-size:11px;color:var(--chalk-faint);flex:0 0 auto;padding-top:1px}
.ex__name{
  font-family:var(--display);font-weight:700;font-stretch:112%;font-size:16px;
  letter-spacing:.015em;text-transform:uppercase;line-height:1.15;flex:1;
}
.ex__chev{color:var(--chalk-faint);font-size:15px;flex:0 0 auto;line-height:1}
.ex__meta{
  font-family:var(--mono);font-size:11.5px;color:var(--chalk-dim);
  margin:5px 0 0 24px;font-variant-numeric:tabular-nums;
}
.ex__foot{display:flex;align-items:center;gap:12px;margin:11px 0 0 24px;flex-wrap:wrap}

/* set pips: chalk = banked, yellow ring = you are here */
.pips{display:flex;gap:4px;flex:0 0 auto}
.pips i{
  width:11px;height:11px;border-radius:2px;border:1.5px solid var(--iron-edge-2);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.pips i.done{background:var(--chalk);border-color:var(--chalk)}
.pips i.here{border-color:var(--plate-yellow);box-shadow:0 0 0 3px rgba(232,178,31,.14)}

/* ====================================================== THE PLATE STRIP */
/* the signature: colour chips telling you exactly what to load, per side */
.strip{display:inline-flex;align-items:center;gap:4px;flex:0 0 auto}
.chip{
  font-family:var(--mono);font-size:10px;font-weight:600;
  min-width:22px;height:18px;padding:0 4px;border-radius:2px;
  display:flex;align-items:center;justify-content:center;
  color:#0B0B0C;font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.chip[data-c="red"]{background:var(--plate-red);color:#fff}
.chip[data-c="blue"]{background:var(--plate-blue);color:#fff}
.chip[data-c="yellow"]{background:var(--plate-yellow)}
.chip[data-c="green"]{background:var(--plate-green);color:#fff}
.chip[data-c="white"]{background:var(--plate-white)}
.chip[data-c="grey"]{background:var(--plate-grey);color:#fff}
.chip--pin{background:none;border:1.5px solid var(--chalk-dim);color:var(--chalk);border-radius:3px;height:19px}
.chip--db{background:none;border:1.5px dashed var(--chalk-faint);color:var(--chalk-dim);height:19px}
.strip__label{
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--chalk-faint);
}

/* ============================================================== focus screen */
.focus__bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:calc(var(--safe-t) + 16px) var(--pad) 0;flex:0 0 auto;
}
.iconbtn{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--iron-edge-2);
  display:flex;align-items:center;justify-content:center;color:var(--chalk-dim);
  font-size:15px;flex:0 0 auto;transition:border-color .15s,color .15s;
}
.iconbtn:active{border-color:var(--chalk-dim);color:var(--chalk)}
.focus__name{
  font-family:var(--display);font-weight:800;font-stretch:112%;font-size:14px;
  letter-spacing:.05em;text-transform:uppercase;text-align:center;flex:1;line-height:1.2;
}
.focus__body{flex:1;display:flex;flex-direction:column;justify-content:center;padding:0 var(--pad);min-height:0}
.setline{
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--plate-yellow);text-align:center;
}
.setline .of{color:var(--chalk-faint)}

.fields{display:flex;align-items:flex-start;justify-content:center;gap:8px;margin:22px 0 0}
.field{
  flex:1;padding:12px 4px 10px;border-radius:12px;text-align:center;
  border:1.5px solid transparent;transition:border-color .18s,background .18s;min-width:0;
}
.field[aria-pressed="true"]{border-color:var(--plate-yellow);background:rgba(232,178,31,.06)}
.field__n{
  font-family:var(--display);font-weight:800;font-stretch:125%;
  font-size:clamp(44px,15vw,60px);line-height:.9;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;display:block;
}
.field__l{
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--chalk-faint);display:block;margin-top:9px;
}
.field[aria-pressed="true"] .field__l{color:var(--plate-yellow)}
.times{font-family:var(--display);font-size:22px;font-weight:400;color:var(--chalk-faint);padding-top:26px;flex:0 0 auto}

.recall{display:flex;flex-direction:column;gap:10px;align-items:center;margin-top:22px}
.recall__row{
  font-family:var(--mono);font-size:11.5px;color:var(--chalk-dim);
  font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  justify-content:center;
}
.recall__row .lbl{color:var(--chalk-faint);letter-spacing:.1em;text-transform:uppercase;font-size:10px}
.recall__row.is-pr{color:var(--plate-red)}
.nudge{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;
  color:var(--plate-yellow);text-align:center;margin-top:4px;
}

.controls{display:flex;align-items:center;gap:12px;padding:14px var(--pad) 22px;flex:0 0 auto}
.step{
  width:58px;height:58px;border-radius:16px;flex:0 0 auto;
  border:1px solid var(--iron-edge-2);background:var(--iron-raised);
  font-family:var(--display);font-size:26px;font-weight:600;color:var(--chalk);
  display:flex;align-items:center;justify-content:center;transition:transform .1s,background .12s;
}
.step:active{transform:scale(.94);background:var(--iron-edge)}
.log{
  flex:1;height:58px;border-radius:16px;background:var(--chalk);color:var(--iron);
  font-family:var(--display);font-weight:800;font-stretch:112%;font-size:15px;
  letter-spacing:.1em;text-transform:uppercase;
  display:flex;align-items:center;justify-content:center;transition:transform .1s,background .12s;
}
.log:active{transform:scale(.97)}
.log.is-last{background:var(--plate-green);color:#fff}

.where{
  border-top:1px solid var(--iron-edge);padding:14px var(--pad);flex:0 0 auto;
  display:flex;gap:11px;align-items:flex-start;
}
.where__tag{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--plate-yellow);flex:0 0 auto;padding-top:2px;
}
.where__txt{font-size:12.5px;line-height:1.5;color:var(--chalk-dim);flex:1}

/* logged sets so far, under the controls */
.setlog{display:flex;flex-direction:column;gap:0;margin-top:18px}
.setlog__row{
  display:flex;align-items:center;gap:12px;padding:9px 0;
  border-top:1px solid var(--iron-edge);font-family:var(--mono);font-size:12px;
  color:var(--chalk-dim);font-variant-numeric:tabular-nums;
}
.setlog__n{color:var(--chalk-faint);font-size:10px;letter-spacing:.1em;min-width:38px}
.setlog__v{flex:1;color:var(--chalk)}
.setlog__x{color:var(--chalk-faint);font-size:14px;padding:0 4px}

/* ============================================================== rest dock */
.rest{
  position:absolute;left:0;right:0;bottom:0;z-index:25;
  background:var(--iron-raised);border-top:1px solid var(--iron-edge);
  padding:13px var(--pad) calc(13px + var(--safe-b));
  transform:translateY(120%);transition:transform .32s var(--ease);
  display:flex;align-items:center;gap:14px;
}
.rest.is-up{transform:translateY(0)}
.rest__t{
  font-family:var(--display);font-weight:800;font-stretch:125%;font-size:26px;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;flex:0 0 auto;min-width:66px;
}
.rest.is-done .rest__t{color:var(--plate-green)}
.rest__mid{flex:1;display:flex;flex-direction:column;gap:7px;min-width:0}
.rest__l{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--chalk-faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.rest__track{height:3px;background:var(--iron-edge);border-radius:2px;overflow:hidden}
.rest__fill{height:100%;background:var(--plate-yellow);width:100%;border-radius:2px}
.rest.is-done .rest__fill{background:var(--plate-green)}
.rest__skip{
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--chalk-dim);border:1px solid var(--iron-edge-2);border-radius:6px;padding:7px 10px;flex:0 0 auto;
}

/* ============================================================== sheet */
.scrim{
  position:absolute;inset:0;z-index:28;background:rgba(4,4,5,.6);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.scrim.is-open{opacity:1;pointer-events:auto}
.sheet{
  position:absolute;left:0;right:0;bottom:0;top:calc(var(--safe-t) + 52px);z-index:30;
  background:var(--iron-raised);border-radius:20px 20px 0 0;border-top:1px solid var(--iron-edge-2);
  transform:translateY(100%);transition:transform .36s var(--ease);
  display:flex;flex-direction:column;
}
.sheet.is-open{transform:translateY(0)}
.sheet--short{top:auto;height:auto;max-height:72%}
.sheet__grab{width:34px;height:4px;border-radius:2px;background:var(--iron-edge-2);margin:9px auto 0;flex:0 0 auto}
.sheet__head{
  padding:14px var(--pad);border-bottom:1px solid var(--iron-edge);flex:0 0 auto;
  display:flex;align-items:center;gap:12px;
}
.sheet__body{flex:1;overflow-y:auto;padding:2px var(--pad) calc(34px + var(--safe-b));overscroll-behavior:contain}

.blk{padding:17px 0;border-bottom:1px solid var(--iron-edge)}
.blk:last-child{border-bottom:0}
.blk p{margin:0;font-size:13.5px;line-height:1.55;color:var(--chalk-dim)}
.blk ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}
.blk li{font-size:13.5px;line-height:1.5;color:var(--chalk-dim);padding-left:15px;position:relative}
.blk li::before{content:'';position:absolute;left:0;top:8px;width:5px;height:5px;border-radius:1px;background:var(--iron-edge-2)}
.legend{display:flex;flex-direction:column;gap:8px}
.legend__row{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11px;color:var(--chalk-dim)}

/* ============================================== equipment silhouette */
/* Chalk line art; the loaded or moving part is picked out in plate yellow,
   so the drawing shows where the weight is as well as what the machine is. */
.viz-equip{display:flex;gap:15px;align-items:flex-start}
.viz-equip__text{flex:1;min-width:0}
.viz-equip__name{
  font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--chalk);margin-bottom:6px;
}
.equip{
  width:66px;height:66px;flex:0 0 auto;color:var(--chalk-dim);
  border:1px solid var(--iron-edge);border-radius:10px;padding:1px;
  background:var(--iron);
}
.equip .h{stroke:var(--plate-yellow)}

/* ==================================================== muscle map */
/* Same idea as the placard bolted to every machine: grey body, worked
   muscle in red. Assisting muscles in yellow. */
.anat{width:100%;max-width:250px;height:auto;display:block;margin:2px auto 0}
.anat__cap{
  fill:var(--chalk-faint);font-family:var(--mono);font-size:9px;
  letter-spacing:.14em;text-anchor:middle;
}
.anat__legend{display:flex;flex-direction:column;gap:7px;align-items:center;margin-top:12px}
.anat__key{
  display:flex;align-items:center;gap:9px;font-family:var(--mono);
  font-size:11px;color:var(--chalk-dim);text-align:center;
}
.anat__key i{width:10px;height:10px;border-radius:2px;display:block;flex:0 0 auto}

/* ============================================================== controls */
.btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:50px;border-radius:14px;padding:0 20px;
  font-family:var(--display);font-weight:800;font-stretch:112%;font-size:14px;
  letter-spacing:.09em;text-transform:uppercase;
  background:var(--chalk);color:var(--iron);transition:transform .1s,opacity .15s;width:100%;
}
.btn:active{transform:scale(.98)}
.btn[disabled]{opacity:.35;pointer-events:none}
.btn--ghost{background:none;border:1px solid var(--iron-edge-2);color:var(--chalk)}
.btn--danger{background:none;border:1px solid var(--plate-red);color:var(--plate-red)}
.btn--go{background:var(--plate-yellow);color:var(--iron)}
.btn--sm{height:38px;font-size:11px;border-radius:10px;padding:0 14px;width:auto}

.rowbtn{
  width:100%;display:flex;align-items:center;gap:12px;padding:15px 0;
  border-top:1px solid var(--iron-edge);text-align:left;
}
.rowbtn__main{flex:1;min-width:0}
.rowbtn__t{font-size:15px;color:var(--chalk)}
.rowbtn__s{font-size:12px;color:var(--chalk-faint);margin-top:3px;font-family:var(--mono)}
.rowbtn__v{font-family:var(--mono);font-size:12.5px;color:var(--chalk-dim);flex:0 0 auto}
.rowbtn__chev{color:var(--chalk-faint);flex:0 0 auto}

.seg{display:flex;border:1px solid var(--iron-edge-2);border-radius:8px;overflow:hidden;flex:0 0 auto}
.seg button{
  padding:7px 12px;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;
  color:var(--chalk-faint);transition:color .15s,background .15s;text-transform:uppercase;
}
.seg button[aria-pressed="true"]{background:var(--chalk);color:var(--iron)}

/* option cards, used by onboarding */
.opts{display:flex;flex-direction:column;gap:9px}
.opt{
  width:100%;text-align:left;padding:15px 16px;border-radius:14px;
  border:1.5px solid var(--iron-edge);background:var(--iron-raised);
  transition:border-color .16s,background .16s;
}
.opt[aria-pressed="true"]{border-color:var(--plate-yellow);background:rgba(232,178,31,.07)}
.opt__t{font-family:var(--display);font-weight:700;font-stretch:112%;font-size:15px;
  letter-spacing:.02em;text-transform:uppercase}
.opt__s{font-size:12.5px;line-height:1.45;color:var(--chalk-dim);margin-top:5px}
.opt__n{
  font-family:var(--display);font-weight:800;font-stretch:125%;font-size:28px;
  line-height:1;letter-spacing:-.02em;
}

/* ============================================================== history */
.hrow{
  width:100%;text-align:left;display:block;padding:15px 0;
  border-top:1px solid var(--iron-edge);
}
.hrow__top{display:flex;align-items:baseline;gap:10px}
.hrow__d{font-family:var(--mono);font-size:10.5px;color:var(--chalk-faint);letter-spacing:.1em;text-transform:uppercase;flex:0 0 auto}
.hrow__n{font-family:var(--display);font-weight:700;font-stretch:112%;font-size:15px;
  letter-spacing:.02em;text-transform:uppercase;flex:1}
.hrow__m{font-family:var(--mono);font-size:11.5px;color:var(--chalk-dim);margin-top:5px;font-variant-numeric:tabular-nums}

.prcard{
  display:flex;align-items:baseline;gap:10px;padding:13px 0;
  border-top:1px solid var(--iron-edge);
}
.prcard__n{flex:1;font-size:14px;color:var(--chalk)}
.prcard__v{font-family:var(--mono);font-size:13px;color:var(--plate-red);font-variant-numeric:tabular-nums}
.prcard__d{font-family:var(--mono);font-size:10px;color:var(--chalk-faint);min-width:56px;text-align:right}

/* ============================================================== empty */
.empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:56px 28px;text-align:center;
}
.empty__t{font-family:var(--display);font-weight:800;font-stretch:112%;font-size:17px;
  text-transform:uppercase;letter-spacing:.03em}
.empty__s{font-size:13.5px;line-height:1.55;color:var(--chalk-dim);max-width:30ch}

/* ============================================================== toast */
.toast{
  position:absolute;left:var(--pad);right:var(--pad);bottom:calc(var(--tabh) + var(--safe-b) + 14px);
  z-index:40;background:var(--iron-edge);border:1px solid var(--iron-edge-2);
  border-radius:12px;padding:13px 15px;font-size:13.5px;color:var(--chalk);
  transform:translateY(140%);opacity:0;transition:transform .3s var(--ease),opacity .3s;
  pointer-events:none;
}
.toast.is-up{transform:translateY(0);opacity:1}
.toast[data-tone="bad"]{border-color:var(--plate-red)}

/* ============================================================== inputs */
.input{
  width:100%;height:48px;border-radius:12px;background:var(--iron-raised);
  border:1px solid var(--iron-edge-2);color:var(--chalk);padding:0 14px;
  font-family:var(--body);font-size:15px;
}
.input:focus{outline:none;border-color:var(--plate-yellow)}

/* ============================================================== misc */
.divider{height:1px;background:var(--iron-edge);margin:22px 0}
.stack-gap{display:flex;flex-direction:column;gap:11px}
.row-gap{display:flex;gap:10px;align-items:center}
.grow{flex:1;min-width:0}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}