/* Armstrong · blanco y negro puros, sobrio y legible */
:root{
  --bg:#fff; --fg:#000; --mut:#6b6b6b; --faint:#9a9a9a; --line:#e6e6e6; --soft:#f4f4f4; --done:#efefef;
  --r:12px; --sb:env(safe-area-inset-bottom,0px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --bg:#000; --fg:#fff; --mut:#a3a3a3; --faint:#707070; --line:#232323; --soft:#111; --done:#161616; color-scheme:dark; } }
:root[data-theme="dark"]{ --bg:#000; --fg:#fff; --mut:#a3a3a3; --faint:#707070; --line:#232323; --soft:#111; --done:#161616; color-scheme:dark; }

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--fg)}
body{font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
a{color:inherit}
[hidden]{display:none!important}
h1,h2,h3{margin:0;letter-spacing:-.02em;line-height:1.15}
h1{font-size:26px;font-weight:700}
h2{font-size:19px;font-weight:650}
h3{font-size:15px;font-weight:650}
.mut{color:var(--mut)} .faint{color:var(--faint)} .sm{font-size:13px} .xs{font-size:12px}
.num{font-variant-numeric:tabular-nums}
.grow{flex:1;min-width:0} .ell{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hstack{display:flex;align-items:center;gap:10px} .vstack{display:flex;flex-direction:column;gap:12px}
.wrap{flex-wrap:wrap} .between{justify-content:space-between}
.mt{margin-top:16px} .mt2{margin-top:28px} .mb{margin-bottom:12px}

/* ---------- Marca ---------- */
.brand{font-weight:800;letter-spacing:.2em;font-size:15px;text-transform:uppercase}
.brand.big{font-size:30px;letter-spacing:.24em}
.mark{width:34px;height:34px;border-radius:9px;background:var(--fg);color:var(--bg);display:grid;place-items:center;font-weight:900;font-size:17px;letter-spacing:0}

/* ---------- Estructura ---------- */
.shell{min-height:100vh;min-height:100dvh}
.side{display:none}
.top{position:sticky;top:0;z-index:20;background:var(--bg);display:flex;align-items:center;gap:8px;min-height:56px;padding:8px 12px 8px 16px;border-bottom:1px solid transparent}
.top.scrolled{border-bottom-color:var(--line)}
.top h1{font-size:20px;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top .back{margin-left:-8px}
main{padding:4px 16px calc(96px + var(--sb));max-width:820px;margin:0 auto}
main.wide{max-width:1180px}
.tabs{position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--bg);border-top:1px solid var(--line);display:flex;padding-bottom:var(--sb)}
.tabs a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 0 8px;text-decoration:none;color:var(--faint);font-size:11px;font-weight:600;letter-spacing:.01em}
.tabs a.on{color:var(--fg)}
.tabs svg{width:23px;height:23px}
@media (min-width:900px){
  .side{display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;width:232px;border-right:1px solid var(--line);padding:22px 14px;gap:4px}
  .side .brandrow{display:flex;align-items:center;gap:10px;padding:0 8px 22px}
  .side a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--mut);font-weight:600}
  .side a.on{background:var(--soft);color:var(--fg)}
  .side a:hover{color:var(--fg)}
  .side svg{width:20px;height:20px}
  .side .foot{margin-top:auto;padding:12px;font-size:13px;color:var(--mut)}
  .tabs{display:none}
  .shell{padding-left:232px}
  .top{padding:18px 32px 10px;min-height:72px}
  .top h1{font-size:26px}
  main{padding:8px 32px 64px}
}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 20px;border-radius:var(--r);background:var(--fg);color:var(--bg);font-weight:650;letter-spacing:-.005em;white-space:nowrap;transition:opacity .15s,transform .1s;user-select:none}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.35;pointer-events:none}
.btn.block{display:flex;width:100%}
.btn.ghost{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1.5px var(--fg)}
.btn.quiet{background:var(--soft);color:var(--fg)}
.btn.link{background:none;color:var(--fg);height:auto;padding:6px 4px;text-decoration:underline;text-underline-offset:3px;font-weight:600}
.btn.sm{height:36px;padding:0 14px;border-radius:10px;font-size:14px}
.btn.danger{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn svg{width:18px;height:18px}
.ib{width:42px;height:42px;border-radius:12px;display:inline-grid;place-items:center;color:var(--fg);flex:none}
.ib:active{background:var(--soft)}
.ib svg{width:22px;height:22px}
.ib.sm{width:34px;height:34px} .ib.sm svg{width:18px;height:18px}
.fab{position:fixed;right:18px;bottom:calc(76px + var(--sb));z-index:25;height:54px;padding:0 22px 0 18px;border-radius:27px;box-shadow:0 6px 24px rgba(0,0,0,.18)}
@media (min-width:900px){.fab{position:static;box-shadow:none;height:40px;border-radius:10px;padding:0 16px}}

/* ---------- Formularios ---------- */
label.f{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--mut)}
.in,select.in,textarea.in{width:100%;height:48px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);padding:0 14px;font-size:16px;color:var(--fg);outline:none;transition:border-color .15s}
textarea.in{height:auto;min-height:84px;padding:12px 14px;resize:vertical;line-height:1.4}
.in:focus{border-color:var(--fg)}
.in::placeholder{color:var(--faint)}
.code-in{text-align:center;letter-spacing:.4em;font-weight:700;font-size:24px;text-transform:uppercase;height:60px}
.seg{display:flex;background:var(--soft);border-radius:11px;padding:3px;gap:3px}
.seg button{flex:1;height:36px;border-radius:8px;font-weight:600;font-size:14px;color:var(--mut)}
.seg button.on{background:var(--bg);color:var(--fg);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.err{color:var(--fg);background:var(--soft);border-left:3px solid var(--fg);padding:10px 12px;border-radius:6px;font-size:14px}
.search{position:relative}
.search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--faint)}
.search .in{padding-left:40px}

/* ---------- Listas y tarjetas ---------- */
.list{border-top:1px solid var(--line)}
.row{display:flex;align-items:center;gap:12px;padding:14px 2px;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;width:100%;text-align:left}
button.row:active,a.row:active{background:var(--soft)}
.row .chev{color:var(--faint);width:18px;height:18px;flex:none}
.av{width:42px;height:42px;border-radius:50%;background:var(--soft);display:grid;place-items:center;font-weight:700;font-size:15px;flex:none;letter-spacing:0}
.av.inv{background:var(--fg);color:var(--bg)}
.card{border:1px solid var(--line);border-radius:16px;padding:16px}
.card.solid{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.card.solid .mut{color:inherit;opacity:.65}
.card.solid .btn{background:var(--bg);color:var(--fg)}
.cards{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.tag{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:6px;background:var(--soft);font-size:12px;font-weight:600;color:var(--mut);white-space:nowrap}
.tag.inv{background:var(--fg);color:var(--bg)}
.tag svg{width:13px;height:13px;margin-right:3px}
.sec{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:28px 0 8px}
.sec h2{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--mut)}
.empty{padding:36px 12px;text-align:center;color:var(--mut)}
.empty .big{font-size:17px;font-weight:650;color:var(--fg);margin-bottom:6px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.stat{background:var(--soft);border-radius:12px;padding:12px}
.stat b{display:block;font-size:22px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat span{font-size:12px;color:var(--mut);font-weight:600}
.kv{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}

/* ---------- Hoja inferior / diálogo ---------- */
.scrim{position:fixed;inset:0;z-index:60;background:rgba(0,0,0,.45);display:flex;align-items:flex-end;justify-content:center;animation:fade .15s}
.sheet{background:var(--bg);width:100%;max-width:560px;max-height:92vh;max-height:92dvh;border-radius:20px 20px 0 0;display:flex;flex-direction:column;animation:up .2s cubic-bezier(.2,.8,.2,1);padding-bottom:var(--sb)}
.sheet.full{height:100vh;height:100dvh;max-height:none;border-radius:0;max-width:none}
.sheet .sh{display:flex;align-items:center;gap:8px;padding:12px 10px 8px 20px}
.sheet .sh h2{flex:1}
.sheet .sb{overflow:auto;padding:4px 20px 20px;-webkit-overflow-scrolling:touch}
.sheet .sf{padding:12px 20px 16px;border-top:1px solid var(--line);display:flex;gap:10px}
@media (min-width:700px){.scrim{align-items:center}.sheet{border-radius:20px;max-height:86vh}.sheet.full{max-width:720px;height:90vh;border-radius:20px}}
@keyframes up{from{transform:translateY(40px);opacity:.4}to{transform:none;opacity:1}}
@keyframes fade{from{opacity:0}to{opacity:1}}
.toast{position:fixed;left:50%;bottom:calc(92px + var(--sb));transform:translateX(-50%);z-index:90;background:var(--fg);color:var(--bg);padding:12px 18px;border-radius:12px;font-weight:600;font-size:14px;max-width:calc(100% - 32px);box-shadow:0 8px 30px rgba(0,0,0,.25);animation:fade .15s}

/* ---------- Bienvenida / acceso ---------- */
.auth{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;max-width:440px;margin:0 auto;padding:24px 22px calc(24px + var(--sb))}
.auth .hero{flex:1;display:flex;flex-direction:column;justify-content:center;gap:14px;padding:40px 0}
.auth .hero p{font-size:17px;color:var(--mut);margin:0;max-width:320px}
.choice{display:flex;align-items:center;gap:14px;width:100%;padding:18px;border:1.5px solid var(--line);border-radius:16px;text-align:left}
.choice:active{border-color:var(--fg)}
.choice b{display:block;font-size:16px}
.choice span{color:var(--mut);font-size:14px}

/* ---------- Programa: semanas × días ---------- */
.weeks{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.weeks::-webkit-scrollbar{display:none}
.weeks button{flex:none;height:36px;min-width:52px;padding:0 12px;border-radius:18px;background:var(--soft);font-weight:650;font-size:14px;color:var(--mut)}
.weeks button.empty{color:var(--faint);background:transparent;box-shadow:inset 0 0 0 1.5px var(--line)}
.weeks button.on{background:var(--fg);color:var(--bg)}
.day{display:flex;align-items:center;gap:14px;padding:14px;border:1px solid var(--line);border-radius:14px;width:100%;text-align:left}
.day>svg{width:20px;height:20px;flex:none}
.day .dn{width:40px;height:40px;border-radius:10px;background:var(--soft);display:grid;place-items:center;font-weight:750;flex:none}
.day.done .dn{background:var(--fg);color:var(--bg)}
.grid-days{display:grid;gap:10px}
@media (min-width:900px){.grid-days{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}}

/* ---------- Editor de rutina ---------- */
.item{border:1px solid var(--line);border-radius:16px;padding:12px 12px 10px;margin-bottom:12px}
.item .ih{display:flex;align-items:center;gap:6px}
.item .ih h3{flex:1;min-width:0}
.presc{display:grid;grid-template-columns:30px repeat(5,minmax(0,1fr)) 30px;gap:6px;align-items:center;margin-top:6px}
.presc .hd{font-size:11px;font-weight:700;color:var(--faint);text-transform:uppercase;letter-spacing:.04em;text-align:center}
.presc .ix{text-align:center;font-weight:700;color:var(--mut);font-size:14px}
.cell{width:100%;height:40px;border:1.5px solid var(--line);border-radius:9px;background:var(--bg);text-align:center;font-size:15px;padding:0 2px;outline:none;font-variant-numeric:tabular-nums;color:var(--fg)}
.cell:focus{border-color:var(--fg)}
.cell::placeholder{color:var(--faint)}
.mini{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.mini .in{height:40px;font-size:14px}

/* ---------- Registro (logger) ---------- */
.logger{position:fixed;inset:0;z-index:50;background:var(--bg);display:flex;flex-direction:column}
.logger .lh{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--line)}
.logger .lb{flex:1;overflow:auto;padding:12px 14px 140px;-webkit-overflow-scrolling:touch}
.logger .inner{max-width:720px;margin:0 auto}
.clock{font-variant-numeric:tabular-nums;font-weight:700;font-size:17px}
.lx{margin-bottom:22px}
.lx .xh{display:flex;align-items:flex-start;gap:6px}
.lx .xh h3{font-size:17px;flex:1;min-width:0}
.lx .note{font-size:13px;color:var(--mut);margin:4px 0 2px;white-space:pre-wrap}
.sets{display:grid;grid-template-columns:30px minmax(0,1.25fr) minmax(0,1fr) minmax(0,.9fr) minmax(0,.8fr) 42px;gap:6px;align-items:center;margin-top:8px}
.sets .hd svg{width:15px;height:15px}
.sets .hd{font-size:11px;font-weight:700;color:var(--faint);text-transform:uppercase;letter-spacing:.04em;text-align:center}
.sets .ix{text-align:center;font-weight:750;font-size:14px}
.sets .ix.w{color:var(--faint)}
.sets .prev{text-align:center;font-size:13px;color:var(--faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-variant-numeric:tabular-nums}
.sets .rowbg{grid-column:1/-1;height:0}
.ck{width:42px;height:40px;border-radius:10px;background:var(--soft);display:grid;place-items:center;color:var(--faint)}
.ck svg{width:20px;height:20px}
.ck.on{background:var(--fg);color:var(--bg)}
.sets .done{background:var(--done)}
.sets .cell.done{border-color:transparent}
.pr{display:inline-flex;align-items:center;gap:3px;font-size:11px;font-weight:800;letter-spacing:.04em}
.pr svg{width:13px;height:13px}
.rest{position:fixed;left:12px;right:12px;bottom:calc(14px + var(--sb));z-index:55;background:var(--fg);color:var(--bg);border-radius:18px;padding:10px 10px 10px 18px;display:flex;align-items:center;gap:8px;box-shadow:0 10px 30px rgba(0,0,0,.3);max-width:560px;margin:0 auto}
.rest .t{font-size:24px;font-weight:750;font-variant-numeric:tabular-nums;flex:1}
.rest button{height:40px;min-width:46px;padding:0 10px;border-radius:11px;background:rgba(127,127,127,.25);color:inherit;font-weight:700}
.rest .bar{position:absolute;left:18px;right:18px;bottom:5px;height:3px;border-radius:2px;background:rgba(127,127,127,.35);overflow:hidden}
.rest .bar i{display:block;height:100%;background:currentColor}
.spin{width:26px;height:26px;border:2.5px solid var(--line);border-top-color:var(--fg);border-radius:50%;animation:rot .8s linear infinite;margin:40px auto}
@keyframes rot{to{transform:rotate(360deg)}}
.trophy{width:64px;height:64px;border-radius:50%;background:var(--fg);color:var(--bg);display:grid;place-items:center;margin:0 auto}
.trophy svg{width:30px;height:30px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{height:34px;padding:0 12px;border-radius:17px;border:1.5px solid var(--line);font-size:14px;font-weight:600;color:var(--mut)}
.chip.on{border-color:var(--fg);background:var(--fg);color:var(--bg)}
.rpe{display:grid;grid-template-columns:repeat(10,1fr);gap:4px}
.rpe button{height:44px;border-radius:9px;background:var(--soft);font-weight:700}
.rpe button.on{background:var(--fg);color:var(--bg)}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--faint);text-align:left;font-weight:700;padding:6px 4px}
table.t td{padding:8px 4px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums}
.banner{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:var(--fg);color:var(--bg);width:100%;text-align:left;margin-bottom:14px}
.banner .dot{width:9px;height:9px;border-radius:50%;background:currentColor;animation:pulse 1.4s infinite}
@keyframes pulse{50%{opacity:.25}}

/* ---------- entrega 2: columnas y estadísticas de 4 ---------- */
.stats.four{grid-template-columns:repeat(2,1fr)}
@media (min-width:700px){.stats.four{grid-template-columns:repeat(4,1fr)}}
.cols{display:grid;gap:0 32px}
@media (min-width:1000px){.cols{grid-template-columns:1fr 1fr}}
.cols>div{min-width:0}