:root{
  --r:10px;
  --disp:'Anton', 'Arial Narrow', Impact, sans-serif;
  --body:'Barlow', system-ui, -apple-system, sans-serif;
  --mono:'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

/* ---- dark (default) ---- */
:root, :root[data-theme="dark"]{
  --steel-900:#15171B;
  --steel-800:#1C1F25;
  --steel-700:#262A32;
  --steel-600:#343943;
  --line:#3A404B;
  --ink:#EDEFF3;
  --ink-dim:#AEB6C2;
  --ink-faint:#8B94A3;
  --brass:#E8B33C;      /* accent, also readable as text on dark */
  --brass-hi:#F2C255;   /* accent hover */
  --brass-dim:#8A6A22;
  --on-brass:#1A1408;   /* text on a brass fill */
  --cool:#6C9BC9;
  --done:#63B183;
  --warn:#D0705C;
  --on-danger:#2A0E08;  /* text on a danger fill */
  --bar-bg:rgba(21,23,27,.93);
  --knurl:rgba(255,255,255,.028);
  --scrim:rgba(8,9,11,.72);
}

/* ---- light ---- */
:root[data-theme="light"]{
  --steel-900:#E7EAEF;  /* app background */
  --steel-800:#FCFCFD;  /* cards */
  --steel-700:#EDF0F4;  /* raised / hover */
  --steel-600:#DCE1E8;  /* controls */
  --line:#C9D0DA;
  --ink:#191C22;
  --ink-dim:#454C59;
  --ink-faint:#5E6674;
  --brass:#8A5E0C;      /* deep gold: reads as text on light */
  --brass-hi:#6F4B08;
  --brass-dim:#B99A5A;
  --on-brass:#FFF7E9;   /* cream text on deep-gold fills */
  --cool:#3D77AD;
  --done:#2E7D53;
  --warn:#B23A22;
  --on-danger:#FFF0EC;
  --bar-bg:rgba(247,248,250,.94);
  --knurl:rgba(26,34,52,.045);
  --scrim:rgba(20,24,32,.44);
}

*{box-sizing:border-box}
html,body{margin:0;background:var(--steel-900)}

#app{
  font-family:var(--body);
  color:var(--ink);
  background-color:var(--steel-900);
  /* knurl: the diamond cross-hatch off a barbell */
  background-image:
    repeating-linear-gradient(45deg, var(--knurl) 0 1px, transparent 1px 9px),
    repeating-linear-gradient(-45deg, var(--knurl) 0 1px, transparent 1px 9px);
  min-height:100vh;
  padding:0 0 90px;
  -webkit-font-smoothing:antialiased;
  transition:background-color .25s ease, color .25s ease;
}
#app .wrap{max-width:720px;margin:0 auto;padding:0 14px}
[hidden]{display:none!important}

/* ---------- header ---------- */
#app .topbar{
  border-bottom:1px solid var(--line);
  background:var(--bar-bg);
  backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:20;
}
#app .brand{display:flex;align-items:center;gap:9px;padding:13px 0 11px}
#app .brand h1{
  font-family:var(--disp);font-size:21px;letter-spacing:.055em;
  margin:0;text-transform:uppercase;color:var(--ink);
}
#app .brand .sub{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--ink-faint);text-transform:uppercase}
#app .icon-btn{
  align-self:center;appearance:none;cursor:pointer;
  width:34px;height:34px;border-radius:8px;border:1px solid var(--line);
  background:var(--steel-700);color:var(--ink-dim);display:grid;place-items:center;padding:0;
  overflow:hidden;flex:none;
  transition:color .15s ease, border-color .15s ease, background .15s ease;
}
#app #acctBtn{margin-left:auto}
#app .icon-btn:hover{color:var(--brass);border-color:var(--ink-faint)}
#app .icon-btn:focus-visible{outline:2px solid var(--cool);outline-offset:2px}
#app .icon-btn svg{width:17px;height:17px;display:block}
#app .icon-btn img{width:100%;height:100%;object-fit:cover;display:block}
#app .icon-btn .ini{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--ink)}
#app .tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
#app .tabs::-webkit-scrollbar{display:none}
#app .tab{
  appearance:none;border:0;background:none;cursor:pointer;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink-faint);padding:10px 13px;border-bottom:2px solid transparent;white-space:nowrap;
}
#app .tab:hover{color:var(--ink-dim)}
#app .tab.on{color:var(--brass);border-bottom-color:var(--brass)}
#app .tab:focus-visible{outline:2px solid var(--cool);outline-offset:-2px}

/* ---------- generic ---------- */
#app .card{
  background:var(--steel-800);border:1px solid var(--line);
  border-radius:var(--r);margin-top:14px;overflow:hidden;
  transition:background-color .25s ease, border-color .25s ease;
}
#app .card-h{
  padding:11px 14px;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:10px;
}
#app .card-h h2{
  font-family:var(--mono);font-size:11px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--ink-dim);margin:0;font-weight:500;
}
#app .card-b{padding:14px}
#app .eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint)}
#app .num{font-family:var(--mono);font-variant-numeric:tabular-nums}
#app p{line-height:1.55;color:var(--ink-dim);font-size:14.5px;margin:0 0 10px}
#app p:last-child{margin-bottom:0}
#app strong{color:var(--ink);font-weight:600}
#app .muted{color:var(--ink-faint);font-size:13px}

#app button{font-family:var(--body)}
#app .btn{
  appearance:none;cursor:pointer;border-radius:8px;font-family:var(--mono);
  font-size:11.5px;letter-spacing:.11em;text-transform:uppercase;padding:10px 14px;
  background:var(--steel-600);border:1px solid var(--line);color:var(--ink);
}
#app .btn:hover{background:var(--steel-700);border-color:var(--ink-faint)}
#app .btn:focus-visible{outline:2px solid var(--cool);outline-offset:2px}
#app .btn.primary{background:var(--brass);border-color:var(--brass);color:var(--on-brass);font-weight:600}
#app .btn.primary:hover{background:var(--brass-hi);border-color:var(--brass-hi)}
#app .btn.ghost{background:transparent}
#app .btn.sm{padding:7px 10px;font-size:10.5px}
#app .btn[disabled]{opacity:.4;cursor:not-allowed}

#app input, #app select, #app textarea{
  font-family:var(--mono);background:var(--steel-900);color:var(--ink);
  border:1px solid var(--line);border-radius:7px;padding:9px 10px;font-size:14px;
  width:100%;
}
#app textarea{font-family:var(--body);resize:vertical}
#app input:focus, #app select:focus, #app textarea:focus{outline:2px solid var(--cool);outline-offset:-1px;border-color:var(--cool)}
#app label.fld{display:block}
#app label.fld > span{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:5px}

/* ---------- sign-in gate ---------- */
#app .gate{
  min-height:100vh;display:grid;place-items:center;padding:24px 14px;
}
#app .gate-card{
  width:min(420px,100%);background:var(--steel-800);border:1px solid var(--line);
  border-radius:14px;padding:26px 22px;text-align:center;
}
#app .gate-card .mark{
  font-family:var(--disp);font-size:34px;letter-spacing:.05em;text-transform:uppercase;
  margin:0;color:var(--ink);line-height:1;
}
#app .gate-card .sub{
  display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ink-faint);margin-top:8px;
}
#app .gate-card .lede{margin:18px 0 22px;font-size:14.5px;color:var(--ink-dim);line-height:1.55}
#app .gbtn{
  display:flex;align-items:center;justify-content:center;gap:10px;width:100%;
  appearance:none;cursor:pointer;border-radius:8px;padding:12px 14px;
  background:var(--brass);border:1px solid var(--brass);color:var(--on-brass);
  font-family:var(--mono);font-size:12px;letter-spacing:.09em;text-transform:uppercase;font-weight:600;
}
#app .gbtn:hover{background:var(--brass-hi);border-color:var(--brass-hi)}
#app .gbtn:focus-visible{outline:2px solid var(--cool);outline-offset:2px}
#app .gbtn[disabled]{opacity:.5;cursor:not-allowed}
#app .gbtn svg{width:17px;height:17px;flex:none}
#app .gate-or{
  display:flex;align-items:center;gap:10px;margin:16px 0;
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-faint);
}
#app .gate-or::before,#app .gate-or::after{content:"";flex:1;height:1px;background:var(--line)}
#app .gate-note{margin-top:18px;font-size:12.5px;color:var(--ink-faint);line-height:1.5}
#app .gate-err{
  margin-top:14px;font-size:13px;color:var(--warn);line-height:1.5;
  border:1px solid var(--warn);border-radius:8px;padding:9px 11px;text-align:left;
}
#app .spinner{
  width:28px;height:28px;border-radius:50%;
  border:2.5px solid var(--steel-600);border-top-color:var(--brass);
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- toast ---------- */
#app .toast{
  position:fixed;left:50%;bottom:22px;transform:translate(-50%,14px);z-index:60;
  background:var(--steel-700);border:1px solid var(--line);border-radius:9px;
  padding:10px 15px;font-family:var(--mono);font-size:12px;color:var(--ink);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
  opacity:0;pointer-events:none;transition:opacity .18s ease, transform .18s ease;
  max-width:calc(100vw - 32px);
}
#app .toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- session picker ---------- */
#app .picker{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
#app .pick{
  appearance:none;cursor:pointer;background:var(--steel-800);border:1px solid var(--line);
  border-radius:8px;padding:9px 4px;text-align:center;color:var(--ink-faint);
}
#app .pick .k{font-family:var(--disp);font-size:19px;line-height:1;letter-spacing:.04em;display:block}
#app .pick .l{font-family:var(--mono);font-size:8.5px;letter-spacing:.09em;text-transform:uppercase;display:block;margin-top:4px}
#app .pick.on{border-color:var(--brass);color:var(--brass);background:rgba(232,179,60,.09)}
#app .pick.next{border-color:var(--brass-dim);color:var(--ink-dim)}
#app .pick:focus-visible{outline:2px solid var(--cool);outline-offset:2px}

/* ---------- today headline ---------- */
#app .headline{padding:16px 14px 14px;border-bottom:1px solid var(--line)}
#app .headline .day{
  font-family:var(--disp);font-size:clamp(28px,8vw,40px);line-height:.95;letter-spacing:.02em;
  text-transform:uppercase;margin:6px 0 0;
}
#app .headline .day em{font-style:normal;color:var(--brass)}
#app .meter{display:flex;align-items:center;gap:10px;margin-top:12px}
#app .meter .bar{flex:1;height:5px;background:var(--steel-600);border-radius:3px;overflow:hidden}
#app .meter .bar i{display:block;height:100%;background:var(--done);width:0;transition:width .28s ease}
#app .meter .pct{font-family:var(--mono);font-size:12px;color:var(--ink-dim)}

/* ---------- exercise ---------- */
#app .ex{border-bottom:1px solid var(--line)}
#app .ex:last-of-type{border-bottom:0}
#app .ex-h{display:flex;gap:11px;align-items:flex-start;padding:13px 14px;cursor:pointer}
#app .ex-h:hover{background:var(--steel-700)}
#app .tick{
  flex:none;width:22px;height:22px;border-radius:6px;border:1.5px solid var(--line);
  margin-top:1px;display:grid;place-items:center;color:transparent;font-size:13px;font-weight:700;
}
#app .ex.done .tick{background:var(--done);border-color:var(--done);color:#10230F}
#app .ex-t{flex:1;min-width:0}
#app .ex-t .n{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.25}
#app .ex.done .ex-t .n{color:var(--ink-faint);text-decoration:line-through;text-decoration-color:var(--ink-faint)}
#app .ex-t .p{font-family:var(--mono);font-size:11.5px;color:var(--brass);margin-top:3px;letter-spacing:.02em}
#app .ex-t .last{font-family:var(--mono);font-size:11px;color:var(--ink-faint);margin-top:2px}
#app .ex-b{padding:0 14px 14px}
#app .cue{font-size:13px;color:var(--ink-faint);line-height:1.5;margin:0 0 11px;border-left:2px solid var(--steel-600);padding-left:10px}

#app .backlink{
  appearance:none;border:0;background:none;cursor:pointer;padding:0 0 8px;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);
}
#app .backlink:hover{color:var(--brass)}
#app .backlink:focus-visible{outline:2px solid var(--cool);outline-offset:2px}
#app .chev{flex:none;color:var(--ink-faint);font-size:12px;padding-top:3px}
#app .btn.danger{background:var(--warn);border-color:var(--warn);color:var(--on-danger);font-weight:600}
#app .btn.danger:hover{background:#DE8471}

#app .scrim{position:fixed;inset:0;background:var(--scrim);z-index:40}
#app .dlg{
  position:fixed;z-index:41;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(400px,calc(100vw - 32px));background:var(--steel-800);
  border:1px solid var(--line);border-radius:12px;padding:20px;
  box-shadow:0 18px 50px rgba(0,0,0,.55);
}
#app .dlg h3{font-family:var(--disp);font-size:19px;letter-spacing:.03em;text-transform:uppercase;margin:0 0 8px;color:var(--ink)}
#app .dlg p{font-size:14px;margin:0 0 16px}
#app .dlg-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
#app .dlg-stack{display:grid;gap:9px}
#app .dlg-who{display:flex;align-items:center;gap:11px;margin-bottom:15px}
#app .dlg-who .av{width:38px;height:38px;border-radius:9px;overflow:hidden;flex:none;background:var(--steel-700);border:1px solid var(--line);display:grid;place-items:center}
#app .dlg-who .av img{width:100%;height:100%;object-fit:cover;display:block}
#app .dlg-who .nm{font-weight:600;font-size:15px;color:var(--ink);line-height:1.25;word-break:break-word}
#app .dlg-who .em{font-family:var(--mono);font-size:11px;color:var(--ink-faint);margin-top:2px;word-break:break-all}

#app .setrow{display:grid;grid-template-columns:22px 1fr 1fr 38px 28px;gap:6px;align-items:center;margin-bottom:6px}
#app .setrow .sn{font-family:var(--mono);font-size:11px;color:var(--ink-faint);text-align:center}
#app .setrow input{padding:8px 4px;text-align:center;font-size:15px}
#app .setrow.logged input{border-color:var(--done);color:var(--done)}
#app .setbtn{
  appearance:none;cursor:pointer;border:1px solid var(--line);background:var(--steel-700);
  border-radius:7px;height:36px;color:var(--ink-faint);font-size:14px;font-weight:700;
}
#app .setrow.logged .setbtn{background:var(--done);border-color:var(--done);color:#10230F}
#app .setbtn:focus-visible,#app .setdel:focus-visible{outline:2px solid var(--cool);outline-offset:2px}
#app .setdel{
  appearance:none;cursor:pointer;border:0;background:none;color:var(--ink-faint);
  font-size:19px;line-height:1;height:36px;border-radius:6px;
}
#app .setdel:hover{color:var(--warn);background:rgba(208,112,92,.12)}
#app .setdel[disabled]{opacity:.22;cursor:not-allowed}
#app .setlbls{display:grid;grid-template-columns:22px 1fr 1fr 38px 28px;gap:6px;margin-bottom:5px}
#app .setlbls span{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);text-align:center}
#app .exfoot{display:flex;gap:8px;margin-top:10px;align-items:center;flex-wrap:wrap}

/* ---------- rest timer ---------- */
#app .timer{
  position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--steel-700);
  border-top:1px solid var(--brass);padding:11px 14px;display:none;
}
#app .timer.on{display:block}
#app .timer .in{max-width:720px;margin:0 auto;display:flex;align-items:center;gap:12px}
#app .timer .t{font-family:var(--mono);font-size:26px;font-weight:600;color:var(--brass);letter-spacing:.02em;min-width:78px}
#app .timer .lb{flex:1;font-size:13px;color:var(--ink-dim);line-height:1.3}

/* ---------- charts ---------- */
#app .chart{width:100%;height:auto;display:block;overflow:visible}
#app .chart .grid{stroke:var(--steel-600);stroke-width:1}
#app .chart .axis{font-family:var(--mono);font-size:16px;font-weight:500;fill:var(--ink-dim)}
#app .chart .dot{fill:var(--ink-dim);opacity:.55}
#app .chart .avg{fill:none;stroke:var(--brass);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
#app .chart .ln{fill:none;stroke:var(--cool);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
#app .chart .pt{fill:var(--cool)}
#app .legend{display:flex;gap:16px;flex-wrap:wrap;margin-top:10px;font-family:var(--mono);font-size:11.5px;color:var(--ink-dim);letter-spacing:.04em}
#app .legend i{display:inline-block;width:16px;height:3px;border-radius:2px;margin-right:6px;vertical-align:middle}

/* ---------- stats ---------- */
#app .stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
#app .stat{background:var(--steel-800);padding:13px 11px}
#app .stat .v{font-family:var(--mono);font-size:21px;font-weight:600;color:var(--ink);line-height:1.1;font-variant-numeric:tabular-nums}
#app .stat .v.up{color:var(--warn)} #app .stat .v.dn{color:var(--done)}
#app .stat .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin-top:5px}

#app table{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:13px}
#app th{
  text-align:left;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);
  font-weight:500;padding:0 8px 8px;border-bottom:1px solid var(--line);
}
#app td{padding:9px 8px;border-bottom:1px solid var(--steel-700);color:var(--ink-dim);font-variant-numeric:tabular-nums}
#app tr:last-child td{border-bottom:0}
#app td.pos{color:var(--warn)} #app td.neg{color:var(--done)}

#app .empty{padding:26px 14px;text-align:center;color:var(--ink-faint);font-size:14px;line-height:1.55}
#app .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
#app .row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
#app .hist{padding:12px 14px;border-bottom:1px solid var(--steel-700);display:flex;justify-content:space-between;gap:12px;align-items:baseline}
#app .hist:last-child{border-bottom:0}
#app .hist .a{font-weight:600;font-size:14.5px}
#app .hist .b{font-family:var(--mono);font-size:11px;color:var(--ink-faint);margin-top:3px}
#app .hist .c{font-family:var(--mono);font-size:11.5px;color:var(--brass);text-align:right;white-space:nowrap}

#app .plan-day{border-bottom:1px solid var(--line);padding:13px 14px}
#app .plan-day:last-child{border-bottom:0}
#app .plan-day h3{font-family:var(--disp);font-size:17px;letter-spacing:.04em;text-transform:uppercase;margin:0 0 3px;color:var(--ink)}
#app .plan-day h3 span{color:var(--brass)}
#app .plan-list{margin:8px 0 0;padding:0;list-style:none}
#app .plan-list li{display:flex;justify-content:space-between;gap:12px;padding:5px 0;font-size:14px;color:var(--ink-dim);border-bottom:1px dotted var(--steel-700)}
#app .plan-list li:last-child{border-bottom:0}
#app .plan-list li em{font-family:var(--mono);font-style:normal;font-size:12px;color:var(--brass);white-space:nowrap}

@media (max-width:420px){
  #app .stats{grid-template-columns:repeat(2,1fr)}
  #app .row3{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  #app *{transition:none!important;animation:none!important}
}