:root{
    --steel-950:#101318;--steel-900:#161A22;--steel-850:#1B2029;--steel-800:#222833;--steel-700:#2E3644;
    --line:#38414f;--parchment:#E9E6DF;--dim:#A9AEB8;
    --scarlet:#E23A45;--scarlet-deep:#B0222C;--ice:#6FCBE6;--ice-deep:#3E93AE;--gold:#C9A24B;--good:#5FBE7E;
  }
  *{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
  html,body{background:var(--steel-950);color:var(--parchment);font-family:'Inter',system-ui,sans-serif;line-height:1.5;font-size:16px;-webkit-font-smoothing:antialiased}
  body{padding-bottom:74px;background-image:radial-gradient(900px 480px at 85% -8%,rgba(226,58,69,.10),transparent 60%),radial-gradient(700px 420px at 0% 6%,rgba(111,203,230,.06),transparent 55%)}
  .disp,h1,h2,h3{font-family:'Oswald',sans-serif;letter-spacing:.01em;line-height:1.12}
  .mono{font-family:'JetBrains Mono',monospace}
  .wrap{max-width:720px;margin:0 auto;padding:0 16px}
  button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
  input,select{font-family:inherit}
  :focus-visible{outline:2px solid var(--ice);outline-offset:2px;border-radius:6px}

  /* header */
  header.top{padding:20px 0 14px;border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(16,19,24,.9);backdrop-filter:blur(8px);z-index:30}
  .brand{display:flex;align-items:center;justify-content:space-between;gap:10px}
  .brand .name{font-family:'Oswald';font-weight:700;text-transform:uppercase;letter-spacing:.14em;font-size:.9rem;
    background:linear-gradient(92deg,var(--scarlet),#f0f0ee 55%,var(--ice));-webkit-background-clip:text;background-clip:text;color:transparent}
  .brand .gear{font-size:1.2rem;color:var(--dim);padding:6px;border-radius:8px}
  .brand .gear:hover{color:var(--parchment);background:var(--steel-850)}

  main{padding:18px 0 20px;min-height:60vh}
  h2.tt{font-size:1.5rem;text-transform:uppercase;font-weight:700;margin-bottom:2px}
  .sub{color:var(--dim);font-size:.85rem;margin-bottom:16px}

  /* rank card */
  .rankcard{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:linear-gradient(180deg,var(--steel-850),var(--steel-900));margin-bottom:16px}
  .rankcard .rc-top{display:flex;align-items:center;gap:16px;padding:18px}
  .rankbadge{font-family:'Oswald';font-weight:700;font-size:2.6rem;width:78px;height:78px;flex:none;display:grid;place-items:center;border-radius:14px;color:var(--steel-950);box-shadow:inset 0 0 0 1px rgba(255,255,255,.15)}
  .rk-E{background:#8a94a3}.rk-D{background:#9fb0c2}.rk-C{background:var(--ice)}.rk-B{background:var(--gold)}.rk-S{background:var(--scarlet);color:#fff}
  .rc-meta .k{font-family:'JetBrains Mono';font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
  .rc-meta .big{font-family:'Oswald';font-weight:600;font-size:1.35rem;line-height:1.1;margin-top:2px}
  .rc-meta .big small{font-size:.8rem;color:var(--dim);font-family:'Inter'}
  .rc-bar{display:flex;border-top:1px solid var(--line)}
  .rc-bar .cell{flex:1;text-align:center;padding:10px 6px;border-right:1px solid var(--line)}
  .rc-bar .cell:last-child{border-right:0}
  .rc-bar .v{font-family:'Oswald';font-weight:600;font-size:1.15rem}
  .rc-bar .l{font-family:'JetBrains Mono';font-size:.58rem;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);margin-top:1px}
  .up{color:var(--good)}.down{color:var(--scarlet)}.flat{color:var(--dim)}

  /* week dots */
  .weekdots{display:flex;gap:7px;margin:2px 0 4px}
  .weekdots .dot{flex:1;height:7px;border-radius:4px;background:var(--steel-700)}
  .weekdots .dot.on{background:var(--ice)}

  /* generic card */
  .card{border:1px solid var(--line);border-radius:12px;background:var(--steel-900);padding:16px;margin-bottom:14px}
  .card h3{font-size:1rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;display:flex;align-items:center;gap:8px}
  .card h3 .tag{margin-left:auto;font-family:'JetBrains Mono';font-size:.6rem;color:var(--dim);letter-spacing:.08em;text-transform:uppercase;font-weight:500}

  .empty{color:var(--dim);font-size:.9rem;text-align:center;padding:22px 10px;border:1px dashed var(--line);border-radius:10px}

  /* chart */
  .chart{width:100%;height:120px;display:block}
  .chart-cap{display:flex;justify-content:space-between;font-family:'JetBrains Mono';font-size:.62rem;color:var(--dim);margin-top:4px;letter-spacing:.05em}

  /* day pills */
  .daypills{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:14px}
  .daypill{border:1px solid var(--line);border-radius:10px;padding:10px 4px;text-align:center;background:var(--steel-850)}
  .daypill.active{border-color:var(--scarlet);background:linear-gradient(180deg,rgba(226,58,69,.16),var(--steel-850))}
  .daypill .d{font-family:'JetBrains Mono';font-size:.6rem;color:var(--dim);letter-spacing:.06em}
  .daypill .n{font-family:'Oswald';font-weight:600;font-size:.78rem;text-transform:uppercase;margin-top:2px;line-height:1.1}
  .daypill.trained .d::after{content:" ✓";color:var(--good)}

  /* exercise rows */
  .exrow{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden;background:var(--steel-850)}
  .exrow .eh{display:flex;align-items:center;gap:8px;padding:11px 12px}
  .exrow .exn{font-weight:600;font-size:.92rem}
  .exrow .last{font-family:'JetBrains Mono';font-size:.64rem;color:var(--dim);margin-top:2px}
  .exrow .last b{color:var(--ice)}
  .pr{margin-left:auto;flex:none;font-family:'JetBrains Mono';font-size:.58rem;font-weight:700;letter-spacing:.06em;color:var(--steel-950);background:var(--good);padding:3px 7px;border-radius:999px}
  .beat{color:var(--good)}
  .inputs{display:flex;gap:8px;align-items:center;padding:0 12px 12px}
  .fld{display:flex;flex-direction:column;gap:3px}
  .fld label{font-family:'JetBrains Mono';font-size:.56rem;letter-spacing:.08em;text-transform:uppercase;color:var(--dim)}
  input.num,input.txt{background:var(--steel-950);border:1px solid var(--line);border-radius:8px;color:var(--parchment);padding:9px 10px;font-size:1rem;width:100%;font-family:'JetBrains Mono'}
  input.num{width:74px;text-align:center}
  input.txt{font-family:'Inter'}
  .inputs .x{color:var(--dim);font-family:'JetBrains Mono';align-self:flex-end;padding-bottom:9px}
  .hist{padding:0 12px 12px;font-family:'JetBrains Mono';font-size:.64rem;color:var(--dim)}
  .hist .hrow{display:flex;justify-content:space-between;padding:3px 0;border-top:1px solid var(--steel-800)}
  .expand{font-family:'JetBrains Mono';font-size:.6rem;color:var(--ice);letter-spacing:.06em;padding:0 12px 10px;text-transform:uppercase}

  /* buttons */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:14px;border-radius:11px;font-family:'Oswald';font-weight:600;text-transform:uppercase;letter-spacing:.08em;font-size:.95rem}
  .btn.primary{background:var(--scarlet);color:#fff}
  .btn.primary:hover{background:var(--scarlet-deep)}
  .btn.ghost{border:1px solid var(--line);color:var(--parchment);background:var(--steel-850)}
  .btn.ice{background:var(--ice);color:var(--steel-950)}
  .btn:disabled{opacity:.5;cursor:default}
  .btnrow{display:flex;gap:10px;margin-top:6px}

  /* checkpoints */
  .cp{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-bottom:1px solid var(--steel-800)}
  .cp:last-child{border-bottom:0}
  .cpbox{flex:none;width:26px;height:26px;border-radius:7px;border:2px solid var(--line);display:grid;place-items:center;margin-top:1px;transition:.15s}
  .cp.done .cpbox{background:var(--good);border-color:var(--good);color:var(--steel-950);font-weight:700}
  .cprank{font-family:'Oswald';font-weight:700;font-size:1rem;width:30px;flex:none;text-align:center;color:var(--dim)}
  .cp.done .cprank{color:var(--gold)}
  .cptext .t{font-weight:600;font-size:.9rem}
  .cptext .d{font-size:.78rem;color:var(--dim)}

  .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
  .field label{font-family:'JetBrains Mono';font-size:.6rem;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);display:block;margin-bottom:4px}
  .field input,.field select{width:100%;background:var(--steel-950);border:1px solid var(--line);border-radius:9px;color:var(--parchment);padding:11px 10px;font-size:1rem;font-family:'JetBrains Mono'}

  /* bottom nav */
  nav.tabs{position:fixed;bottom:0;left:0;right:0;background:rgba(16,19,24,.95);backdrop-filter:blur(10px);border-top:1px solid var(--line);z-index:40}
  nav.tabs .inner{max-width:720px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr)}
  nav.tabs button{padding:10px 4px 12px;display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--dim)}
  nav.tabs button .ic{font-size:1.15rem;line-height:1}
  nav.tabs button .lb{font-family:'JetBrains Mono';font-size:.58rem;letter-spacing:.06em;text-transform:uppercase}
  nav.tabs button.active{color:var(--parchment)}
  nav.tabs button.active .ic{filter:drop-shadow(0 0 6px rgba(226,58,69,.5))}
  nav.tabs button.active .lb{color:var(--scarlet)}

  /* modal */
  .modal{position:fixed;inset:0;background:rgba(8,10,14,.72);display:none;align-items:flex-end;justify-content:center;z-index:60}
  .modal.open{display:flex}
  .sheet{width:100%;max-width:720px;background:var(--steel-900);border:1px solid var(--line);border-bottom:0;border-radius:16px 16px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom))}
  .sheet h3{font-size:1.15rem;text-transform:uppercase;margin-bottom:12px}
  .toast{position:fixed;bottom:88px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--good);color:var(--steel-950);font-family:'Oswald';font-weight:600;text-transform:uppercase;letter-spacing:.05em;font-size:.85rem;padding:10px 18px;border-radius:999px;opacity:0;transition:.25s;z-index:70;pointer-events:none}
  .toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
  .loading{text-align:center;color:var(--dim);padding:60px 0;font-family:'JetBrains Mono';font-size:.8rem;letter-spacing:.1em}

  /* storage-mode banner */
  .banner{background:linear-gradient(180deg,rgba(201,162,75,.16),var(--steel-900));border-bottom:1px solid var(--gold)}
  .banner .inner{max-width:720px;margin:0 auto;padding:10px 16px;display:flex;gap:10px;align-items:flex-start;font-size:.8rem;color:var(--parchment)}
  .banner .inner b{color:var(--gold)}
  .banner .x{margin-left:auto;flex:none;color:var(--dim);font-size:1rem;padding:0 4px;cursor:pointer}
  .banner[hidden]{display:none}

  /* how-to / form cues */
  .exrow .toggles{display:flex;gap:16px;padding:0 12px 10px}
  .exrow .toggles .expand{padding:0}
  .expand{font-family:'JetBrains Mono';font-size:.6rem;color:var(--ice);letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
  .expand.form{color:var(--gold)}
  .how{padding:2px 12px 12px}
  .how .cues{list-style:none;margin:0 0 8px}
  .how .cues li{position:relative;padding:5px 0 5px 18px;font-size:.82rem;color:var(--parchment);line-height:1.45}
  .how .cues li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--gold);transform:rotate(45deg)}
  .how .safety{font-size:.78rem;color:var(--scarlet);padding:4px 0 8px;font-weight:500}
  .how .demo{display:inline-flex;align-items:center;gap:6px;font-family:'JetBrains Mono';font-size:.68rem;letter-spacing:.04em;color:var(--steel-950);background:var(--ice);padding:8px 12px;border-radius:8px;text-decoration:none;font-weight:700}
  .cpdemo{display:inline-flex;align-items:center;gap:6px;font-family:'JetBrains Mono';font-size:.62rem;color:var(--ice);text-decoration:none;margin-top:6px;margin-left:42px}
  @media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* ===== PWA / SYNC ADDITIONS ===== */
.syncpill{display:inline-flex;align-items:center;gap:6px;font-family:'JetBrains Mono';font-size:.6rem;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);background:var(--steel-850);border:1px solid var(--line);padding:4px 9px;border-radius:999px;cursor:pointer}
.syncpill .d{width:7px;height:7px;border-radius:50%;background:var(--dim);flex:none}
.syncpill.ok .d{background:var(--good)}
.syncpill.pending .d{background:var(--gold)}
.syncpill.err .d{background:var(--scarlet)}
.syncpill.off .d{background:var(--steel-700)}
.syncpill.spin .d{animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}

.brand-right{display:flex;align-items:center;gap:8px}

.auth-note{font-size:.8rem;color:var(--dim);line-height:1.5;margin-bottom:12px}
.seg{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;margin-bottom:12px}
.seg button{flex:1;padding:9px;font-family:'JetBrains Mono';font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:var(--dim);background:var(--steel-850)}
.seg button.on{background:var(--scarlet);color:#fff}
.err-msg{color:var(--scarlet);font-size:.8rem;margin-top:8px}
.ok-msg{color:var(--good);font-size:.8rem;margin-top:8px}
.sheet-scroll{max-height:78vh;overflow-y:auto}
.divider{height:1px;background:var(--line);margin:16px 0}
.mini{font-size:.72rem;color:var(--dim);line-height:1.5}
.kbd{font-family:'JetBrains Mono';font-size:.7rem;background:var(--steel-950);border:1px solid var(--line);border-radius:5px;padding:1px 5px;color:var(--ice)}
.installbar{border:1px solid var(--ice);background:linear-gradient(180deg,rgba(111,203,230,.14),var(--steel-900));border-radius:12px;padding:14px;margin-bottom:14px;display:flex;gap:12px;align-items:center}
.installbar .t{font-size:.85rem}
.installbar button{flex:none;background:var(--ice);color:var(--steel-950);font-family:'Oswald';font-weight:600;text-transform:uppercase;letter-spacing:.06em;font-size:.78rem;padding:9px 13px;border-radius:8px}