/* Layout: una columna del ancho de un móvil, como el cuaderno del profesor. Cabecera sobre papel cuadriculado, tarjetas por clase y barra de pestañas abajo */
:root{
  --paper:#F5F7FB; --surface:#FFFFFF; --ink:#14213A; --muted:#53607A; --line:#D8DFEB; --grid:rgba(37,84,214,.09);
  --blue:#2554D6; --on-blue:#FFFFFF; --blue-soft:#E6ECFC;
  --ok:#17703F; --ok-soft:#DCF1E4; --bad:#B42B24; --bad-soft:#FAE2E0; --warn:#875800; --warn-soft:#FBEDCC;
  --on-state:#FFFFFF; --scrim:rgba(12,18,32,.5);
  --display:"Familjen Grotesk","Helvetica Neue",Arial,sans-serif;
  --body:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0E1421; --surface:#161F31; --ink:#E6EBF5; --muted:#9CA8BF; --line:#2A3651; --grid:rgba(124,155,255,.08);
    --blue:#86A3FF; --on-blue:#0E1421; --blue-soft:#1D2A4C;
    --ok:#5ACB8A; --ok-soft:#163323; --bad:#FF8B82; --bad-soft:#3B1D1F; --warn:#F0C25C; --warn-soft:#382C11;
    --on-state:#0E1421; --scrim:rgba(0,0,0,.6);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#0E1421; --surface:#161F31; --ink:#E6EBF5; --muted:#9CA8BF; --line:#2A3651; --grid:rgba(124,155,255,.08);
  --blue:#86A3FF; --on-blue:#0E1421; --blue-soft:#1D2A4C;
  --ok:#5ACB8A; --ok-soft:#163323; --bad:#FF8B82; --bad-soft:#3B1D1F; --warn:#F0C25C; --warn-soft:#382C11;
  --on-state:#0E1421; --scrim:rgba(0,0,0,.6);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{background:var(--paper)}
body{
  margin:0; background:var(--paper); color:var(--ink); font-family:var(--body); font-size:16px; line-height:1.45;
  padding-left:max(16px, env(safe-area-inset-left, 0px)); padding-right:max(16px, env(safe-area-inset-right, 0px));
  padding-block:env(safe-area-inset-top, 0px) calc(88px + env(safe-area-inset-bottom, 0px));
}
body:not([data-phase="app"]){padding-bottom:calc(24px + env(safe-area-inset-bottom, 0px))}
body:not([data-phase="app"]) .tabs{display:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
h1,h2,h3{font-family:var(--display);margin:0;line-height:1.15;text-wrap:balance}
h3{font-size:18px;font-weight:600}
p{margin:0}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.app{max-width:560px;margin:0 auto;display:flex;flex-direction:column;gap:18px;padding-block:16px 8px}

.top{
  background-color:var(--surface);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:18px 18px; border:1px solid var(--line); border-radius:14px;
  padding:14px 16px; display:flex; flex-direction:column; gap:6px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand h1{font-size:26px;font-weight:700;letter-spacing:-.02em}
.mark{width:34px;height:34px;border-radius:8px;background:var(--blue);color:var(--on-blue);display:grid;place-items:center;flex:none}
.status{margin-left:auto;font-size:13px;color:var(--muted);text-align:right}
.top .note{font-size:14px;color:var(--muted)}
.banner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;background:var(--bad-soft);color:var(--ink);border-radius:12px;padding:12px 14px}
.banner p{flex:1 1 220px;min-width:0;font-size:15px}

.view{display:flex;flex-direction:column;gap:16px}
.vh{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px}
.vh h2{font-size:24px;font-weight:700;letter-spacing:-.01em}
.sub{font-size:14px;color:var(--muted)}
.err{font-size:15px;color:var(--bad);font-weight:700}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:12px;min-width:0}
.card.center{align-items:center;text-align:center;padding-block:40px}
.spinner{width:36px;height:36px;border-radius:50%;border:4px solid var(--blue-soft);border-top-color:var(--blue);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.signin{gap:16px;padding:22px 18px}
.signin h2{font-size:26px;font-weight:700;letter-spacing:-.01em}
.signin p{font-size:16px;line-height:1.55}
.ticks{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px;font-size:15px;color:var(--muted)}
.onboard{gap:10px}
.onboard.muted{opacity:.7}
.onboard p{font-size:15px;line-height:1.5}

.weeknav{display:flex;align-items:center;gap:8px}
.weeknav .wl{font-family:var(--display);font-weight:600;font-size:17px;flex:1 1 auto;text-align:center;font-variant-numeric:tabular-nums}
.weeknav .wl-sp{width:0}
.week{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px}
.day{
  border:1px solid var(--line);background:var(--surface);border-radius:12px;min-height:58px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:6px 0;
}
.day .dw{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.06em}
.day .dn{font-family:var(--display);font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}
.day.free{background:transparent;border-style:dashed}
.day.today .dw{color:var(--blue)}
.day[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);border-style:solid}
.day[aria-pressed="true"] .dw,.day[aria-pressed="true"] .dn{color:var(--on-blue)}

.alert{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:var(--warn-soft);border-radius:12px;padding:12px 14px}
.alert p{font-size:15px;min-width:0;flex:1 1 200px}
.alert strong{font-variant-numeric:tabular-nums}

.cls-h{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.time{font-size:14px;font-weight:700;color:var(--blue);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cls-h h3{font-size:19px;font-weight:600;margin-top:2px}
.count{font-size:14px;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.count strong{font-family:var(--display);font-size:20px;color:var(--ink)}
.roll{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.roll li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:6px 0;border-top:1px solid var(--line)}
.who{min-width:0;display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-weight:700;background:none;border:0;padding:8px 0;text-align:left;min-height:44px}
.pfj{display:flex;gap:6px;flex:none}
.pfj button{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);
  font-family:var(--display);font-weight:700;font-size:16px;color:var(--muted);
}
.pfj button[aria-pressed="true"][data-st="P"]{background:var(--ok);border-color:var(--ok);color:var(--on-state)}
.pfj button[aria-pressed="true"][data-st="F"]{background:var(--bad);border-color:var(--bad);color:var(--on-state)}
.pfj button[aria-pressed="true"][data-st="J"]{background:var(--warn);border-color:var(--warn);color:var(--on-state)}
.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted)}

.btn{
  min-height:44px;border-radius:10px;padding:0 16px;border:1px solid var(--line);background:var(--surface);
  font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;color:var(--ink);text-align:center;
}
.btn.primary{background:var(--blue);border-color:var(--blue);color:var(--on-blue)}
.btn.ghost{background:transparent}
.btn.small{min-height:40px;padding:0 12px;font-size:14px}
.btn.big{min-height:54px;font-size:18px}
.btn.wide{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.link{background:none;border:0;padding:0;color:var(--blue);font-weight:700;text-decoration:underline;min-height:0}

.tag{display:inline-flex;align-items:center;border-radius:999px;padding:2px 10px;font-size:13px;font-weight:700;white-space:nowrap}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.bad{background:var(--bad-soft);color:var(--bad)}
.tag.warn{background:var(--warn-soft);color:var(--warn)}
.tag.na{background:var(--blue-soft);color:var(--muted)}

.search{display:flex;gap:8px;flex-wrap:wrap}
.search input{flex:1 1 200px;min-width:0}
input[type="text"],input[type="tel"],input[type="number"],input[type="search"],input[type="month"],input[type="time"],select,textarea{
  min-height:46px;border:1px solid var(--line);border-radius:10px;background:var(--surface);padding:10px 12px;width:100%;min-width:0;
}
textarea{min-height:120px;resize:vertical;line-height:1.45}
.group-h{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-top:4px;font-family:var(--body)}
.list{display:flex;flex-direction:column;gap:8px}
.row{
  width:100%;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;
}
.row-main{display:flex;flex-direction:column;gap:2px;min-width:0}
.row-main strong{font-size:16px}
.empty{color:var(--muted);text-align:center;padding:24px 8px}

.mnav{display:flex;align-items:center;justify-content:space-between;gap:8px}
.mnav h2{font-size:22px;font-weight:700}
.icon-btn{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;flex:none;color:var(--ink)}
.icon-btn[disabled]{opacity:.35;cursor:not-allowed}
.totals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.total{display:flex;flex-direction:column;gap:2px;min-width:0}
.total span{font-size:13px;color:var(--muted)}
.total strong{font-family:var(--display);font-size:22px;font-variant-numeric:tabular-nums}
.total.ok strong{color:var(--ok)}
.total.bad strong{color:var(--bad)}
.bar{height:10px;border-radius:999px;background:var(--blue-soft);overflow:hidden}
.bar i{display:block;height:100%;background:var(--ok);border-radius:999px}
.pay{display:flex;flex-direction:column;gap:10px;padding:12px 0;border-top:1px solid var(--line)}
.card > h3 + .pay{border-top:0;padding-top:0}
.pay-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.pay-r{display:flex;flex-direction:column;align-items:flex-end;gap:4px}
.pay-top .amt{font-family:var(--display);font-size:18px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.pay-actions{display:flex;flex-wrap:wrap;gap:8px}
.pay-actions .btn{flex:1 1 140px}

.form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label,.field .lbl{font-weight:700;font-size:15px}
.field .hint{font-size:13px;color:var(--muted)}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.check{display:flex;align-items:center;gap:10px;font-weight:700;min-height:44px}
.check input{width:22px;height:22px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips code{font-size:13px;background:var(--blue-soft);color:var(--ink);border-radius:6px;padding:2px 6px}
.preview{background:var(--ok-soft);border-radius:12px;padding:12px 14px;font-size:15px;white-space:pre-wrap;overflow-wrap:anywhere}
.dtogs{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}
.dtog{min-height:46px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-family:var(--display);font-weight:700;font-size:16px;color:var(--muted)}
.dtog[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:var(--on-blue)}

.tabs{
  position:fixed;left:0;right:0;bottom:0;z-index:5;background:var(--surface);border-top:1px solid var(--line);
  padding-left:max(16px, env(safe-area-inset-left, 0px));padding-right:max(16px, env(safe-area-inset-right, 0px));
  padding-bottom:env(safe-area-inset-bottom, 0px);
}
.tabs-in{max-width:560px;margin:0 auto;display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.tab{
  background:none;border:0;min-height:64px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:13px;font-weight:700;color:var(--muted);position:relative;
}
.tab svg{width:24px;height:24px}
.tab[aria-current="page"]{color:var(--blue)}
.tab[aria-current="page"]::before{content:"";position:absolute;top:0;left:22%;right:22%;height:3px;border-radius:0 0 3px 3px;background:var(--blue)}
.tab .badge{position:absolute;top:8px;left:calc(50% + 8px);min-width:20px;height:20px;border-radius:999px;background:var(--bad);color:var(--on-state);font-size:12px;display:grid;place-items:center;padding:0 5px}

dialog{
  width:min(560px, calc(100% - 32px));max-height:86vh;border:0;border-radius:16px;padding:0;
  background:var(--surface);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.25);
}
dialog::backdrop{background:var(--scrim)}
.sheet{padding:20px;display:flex;flex-direction:column;gap:16px}
.sh-h{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.sh-h h2{font-size:22px;font-weight:700}
.sh-sec{display:flex;flex-direction:column;gap:8px}
.sh-sec h3{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-family:var(--body)}
.phone{font-family:var(--display);font-size:20px;font-weight:600;font-variant-numeric:tabular-nums;user-select:all}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.stat{border-radius:10px;padding:10px;display:flex;flex-direction:column;gap:2px}
.stat strong{font-family:var(--display);font-size:22px;font-variant-numeric:tabular-nums}
.stat span{font-size:13px}
.stat.p{background:var(--ok-soft);color:var(--ok)}
.stat.f{background:var(--bad-soft);color:var(--bad)}
.stat.j{background:var(--warn-soft);color:var(--warn)}
.mrow{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 0;border-top:1px solid var(--line);flex-wrap:wrap}
.mrow:first-child{border-top:0}
.mrow .ml{display:flex;flex-direction:column;gap:2px;min-width:0}
.mrow .mr{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.methods{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.methods .btn{min-height:56px}
@media (max-width:420px){
  .two{grid-template-columns:1fr}
  .methods{grid-template-columns:1fr}
  .total strong{font-size:18px}
  .week{gap:4px}
  .day .dn{font-size:18px}
}

.toast{
  position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom, 0px));transform:translate(-50%,12px);
  background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:999px;font-weight:700;font-size:15px;
  opacity:0;pointer-events:none;transition:opacity .2s, transform .2s;z-index:20;max-width:calc(100% - 32px);text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media (prefers-reduced-motion: reduce){ .toast{transition:none} .spinner{animation:none} }
.card.inset{background:var(--paper);gap:12px}
.sel{user-select:all}