:root {
  --bg: #f6f3ee; --surface: #ffffff; --surface2: #efe9e0; --fg: #1d1f26; --muted: #64635f;
  --line: #ddd5c9; --accent: #a8490c; --accent-fg: #ffffff; --ok: #2f7d54; --warn: #a2540f; --danger: #b3261e;
  --font: "Inter Variable", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14161c; --surface: #1d2029; --surface2: #262a35; --fg: #eceae5; --muted: #9a9ba3;
    --line: #333845; --accent: #f0a35c; --accent-fg: #1a1208; --ok: #6cc59a; --warn: #f0a35c; --danger: #ff8a80;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #14161c; --surface: #1d2029; --surface2: #262a35; --fg: #eceae5; --muted: #9a9ba3;
  --line: #333845; --accent: #f0a35c; --accent-fg: #1a1208; --ok: #6cc59a; --warn: #f0a35c; --danger: #ff8a80;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 var(--font); }
#app { max-width: 520px; margin: 0 auto; min-height: 100dvh; display: flex; flex-direction: column;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left)); }
h1, h2, h3 { line-height: 1.2; margin: 0; text-wrap: balance; }
h1 { font-size: 1.9rem; letter-spacing: -0.02em; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; }
p { margin: 0; }
a { color: var(--accent); }
[hidden] { display: none !important; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.stack-sm { display: flex; flex-direction: column; gap: 8px; }
.row { display: flex; gap: 12px; align-items: center; }
.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.center { text-align: center; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.card.accent { border-color: var(--accent); }
.notice { background: var(--surface2); border-left: 4px solid var(--warn); border-radius: 8px; padding: 12px; font-size: .9rem; }
.notice.ok { border-left-color: var(--ok); }
.notice.err { border-left-color: var(--danger); color: var(--danger); }
.btn { appearance: none; border: 0; border-radius: 12px; padding: 14px 18px; font: inherit; font-weight: 650; cursor: pointer;
  background: var(--accent); color: var(--accent-fg); min-height: 48px; text-align: center; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, .tab:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.link { background: none; border: 0; color: var(--accent); font: inherit; cursor: pointer; padding: 4px; text-decoration: underline; }
label.field { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: .95rem; }
input[type=email], input[type=password], input[type=text], input[type=number], textarea, select {
  font: inherit; color: var(--fg); background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 12px; width: 100%; }
textarea { min-height: 90px; resize: vertical; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; font-weight: 400; }
.check input { margin-top: 4px; width: 20px; height: 20px; flex: none; accent-color: var(--accent); }
header.top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 12px; }
.brand { font-weight: 800; letter-spacing: -.02em; font-size: 1.15rem; display: flex; align-items: center; gap: 8px; }
.brand svg { width: 28px; height: 28px; }
main { flex: 1; display: flex; flex-direction: column; gap: 16px; padding-bottom: 88px; }
nav.tabs { position: fixed; left: 0; right: 0; bottom: 0; background: var(--surface); border-top: 1px solid var(--line);
  display: flex; justify-content: center; padding-bottom: env(safe-area-inset-bottom); }
nav.tabs .inner { display: flex; width: 100%; max-width: 520px; }
.tab { flex: 1; padding: 12px 4px; text-align: center; font-size: .8rem; color: var(--muted); text-decoration: none; font-weight: 600; background: none; border: 0; font-family: inherit; cursor: pointer; }
.tab[aria-current=page] { color: var(--accent); }
.tab span { display: block; font-size: 1.25rem; line-height: 1.2; }
.daylist { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.daylist a, .daylist .locked { display: flex; gap: 12px; align-items: center; padding: 12px; border: 1px solid var(--line); background: var(--surface); border-radius: 12px; color: inherit; text-decoration: none; min-height: 56px; }
.daylist .locked { opacity: .55; }
.dot { width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; flex: none; background: var(--surface2); }
.dot.done { background: var(--ok); color: #fff; }
.dot.next { background: var(--accent); color: var(--accent-fg); }
ol.steps { margin: 0; padding-left: 1.3rem; display: flex; flex-direction: column; gap: 10px; }
blockquote { margin: 0; padding: 12px 14px; border-left: 4px solid var(--accent); background: var(--surface2); border-radius: 0 10px 10px 0; font-style: italic; }
.timer { font-variant-numeric: tabular-nums; font-size: 3.6rem; font-weight: 750; text-align: center; letter-spacing: -.02em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 10px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); font: inherit; cursor: pointer; color: var(--fg); min-height: 44px; }
.chip[aria-pressed=true] { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.chart { width: 100%; height: auto; display: block; }
.chart text { fill: var(--muted); font-size: 11px; font-family: var(--font); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 8px; }
.kpi { background: var(--surface2); border-radius: 12px; padding: 12px; }
.kpi b { display: block; font-size: 1.4rem; font-variant-numeric: tabular-nums; }
.pill { display: inline-block; font-size: .75rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: var(--surface2); }
.hero { padding-top: 24px; }
.lock { min-height: 100dvh; display: grid; place-items: center; }
.pin { letter-spacing: .5em; text-align: center; font-size: 1.6rem; }
hr { border: 0; border-top: 1px solid var(--line); width: 100%; margin: 0; }
@media (prefers-reduced-motion: no-preference) { .btn { transition: transform .08s; } .btn:active { transform: scale(.98); } }

/* ilustraciones de la app */
.hero-card { display: flex; align-items: center; gap: 16px; background: linear-gradient(135deg, var(--surface), var(--surface2)); }
.hero-card .big { font-size: 1.15rem; }
.pring { width: 84px; height: 84px; flex: none; }
.pbreath { transform-box: fill-box; transform-origin: center; animation: pbreath 10s ease-in-out infinite; }
@keyframes pbreath { 0%, 100% { transform: scale(.8); } 40% { transform: scale(1.25); } }
@media (prefers-reduced-motion: reduce) { .pbreath { animation: none; } }
.card.accent { background: linear-gradient(135deg, var(--surface), color-mix(in srgb, var(--accent) 14%, var(--surface))); }
.dot { transition: transform .15s; }
.daylist a:hover .dot { transform: scale(1.08); }
.tiny { font-size: .78rem; margin: 0; opacity: .8; } .tiny a { color: inherit; text-decoration: underline; }

/* guía de respiración */
.bg-stage { position: relative; width: 220px; height: 220px; margin: 4px auto; display: grid; place-items: center; }
.bg-ring { position: absolute; inset: 0; border-radius: 50%; border: 2px solid color-mix(in srgb, var(--accent) 40%, transparent); }
.bg-circle { width: 200px; height: 200px; border-radius: 50%; background: var(--accent); transform: scale(.55); transition-property: transform; transition-timing-function: ease-in-out; transition-duration: .6s; box-shadow: 0 0 40px color-mix(in srgb, var(--accent) 45%, transparent); }
.bg-circle.big { transform: scale(1); }
.bg-text { position: absolute; display: grid; justify-items: center; color: var(--accent-fg); pointer-events: none; }
.bg-label { font-size: 1.3rem; } .bg-count { font-size: 2.2rem; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1; }
.center { text-align: center; }
@media (prefers-reduced-motion: reduce) { .bg-circle { transition: none !important; } }

/* ajustes por grupos */
.sgroup { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.sg-title { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 8px 4px 0; font-weight: 700; }

/* tuerca de ajustes */
.gear { color: var(--muted); display: inline-flex; padding: 6px; border-radius: 10px; }
.gear svg { width: 24px; height: 24px; }
.gear:hover { color: var(--fg); }
nav.tabs .tab span svg { width: 22px; height: 22px; display: block; margin: 0 auto; }
nav.tabs .tab > span:first-child { display: block; height: 22px; line-height: 22px; }

/* Idioma: bandera en el encabezado y selector en Ajustes */
.hdr-r { display: flex; align-items: center; gap: 6px; }
.lang-wrap { position: relative; }
.flag { display: inline-flex; width: 24px; height: 16px; border-radius: 3px; overflow: hidden; box-shadow: 0 0 0 1px rgba(255,255,255,.18); flex: none; }
.flag svg { width: 100%; height: 100%; display: block; }
.flag-btn { appearance: none; background: transparent; border: 1px solid var(--line); border-radius: 10px; padding: 7px 9px; cursor: pointer; display: inline-flex; align-items: center; }
.flag-btn:focus-visible, .lang-opt:focus-visible, .lang-choice:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.lang-menu { position: absolute; right: 0; top: calc(100% + 6px); background: var(--surface2); border: 1px solid var(--line); border-radius: 12px; padding: 6px; display: grid; gap: 2px; min-width: 150px; z-index: 30; box-shadow: 0 8px 24px rgba(0,0,0,.4); }
.lang-menu[hidden] { display: none; }
.lang-opt { appearance: none; background: transparent; border: 0; color: var(--fg); font: inherit; text-align: left; padding: 10px 12px; border-radius: 8px; display: flex; align-items: center; gap: 10px; cursor: pointer; }
.lang-opt:hover, .lang-opt[aria-current="true"] { background: rgba(255,255,255,.07); }
.lang-choices { display: grid; gap: 8px; }
.lang-choice { appearance: none; background: transparent; border: 1px solid var(--line); color: var(--fg); font: inherit; text-align: left; padding: 12px 14px; border-radius: 12px; display: flex; align-items: center; gap: 10px; cursor: pointer; }
.lang-choice[aria-pressed="true"] { border-color: var(--accent); background: rgba(240,163,92,.1); font-weight: 650; }

/* Pantalla de logro */
.celebrate { text-align: center; justify-items: center; }
.cele-ring { display: inline-flex; }
@media (prefers-reduced-motion: no-preference) { .cele-ring { animation: celepop .7s cubic-bezier(.2,.9,.3,1.3); } }
@keyframes celepop { from { transform: scale(.6); opacity: 0; } to { transform: none; opacity: 1; } }
.celebrate .card, .celebrate .btn { width: 100%; }

/* Accesibilidad: objetivos táctiles de 44px, foco visible en el contenido y aviso sin conexión */
.gear, .flag-btn { min-width: 44px; min-height: 44px; justify-content: center; align-items: center; }
.link { min-height: 32px; }
main:focus { outline: none; }
.offbar { position: fixed; left: 0; right: 0; top: 0; z-index: 60; background: var(--warn); color: #fff; text-align: center; padding: 8px 12px; font-size: .9rem; }
.brand { min-height: 44px; }
.tiny a, p.small a, a.link, button.link { display: inline-block; padding: 6px 4px; min-height: 28px; }

/* Modo manos libres */
.handsfree { text-align: center; justify-items: center; }
.handsfree input[type=range] { width: 100%; accent-color: var(--accent); }
.handsfree .row { width: 100%; }
.play-big { width: 100%; padding: 22px; font-size: 1.25rem; border-radius: 18px; }
.handsfree .btn.block, .handsfree .btn.ghost.block { width: 100%; }

/* animaciones de sesión: suelo pélvico y escala */
.pv-stage { position: relative; width: 240px; height: 150px; margin: 0 auto; }
.pv-art { width: 240px; height: 100px; color: var(--accent); overflow: visible; }
.pv-bone { fill: var(--muted); } .pv-guide { stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 4 5; opacity: .6; }
.pv-sling { transform-origin: 0 50px; transform: scaleY(1); transition: transform .6s ease-in-out; }
.pv-sling.lift { transform: scaleY(.3); }
.pv-text { position: absolute; left: 0; right: 0; bottom: 0; display: grid; justify-items: center; }
.pv-text .bg-label { font-size: 1.05rem; } .pv-text .bg-count { font-size: 1.6rem; }
.ls-track { position: relative; height: 18px; border-radius: 9px; margin: 14px 4px 4px; background: linear-gradient(90deg, #4f9d7a 0 35%, #d6b84a 35% 65%, #e08a3c 65% 85%, #c84b4b 85% 100%); }
.ls-mark { position: absolute; top: -7px; width: 6px; height: 32px; margin-left: -3px; border-radius: 3px; background: var(--fg); box-shadow: 0 0 0 2px var(--bg); left: 20%; transition: left .6s ease-in-out; }
.ls-end { position: absolute; top: 22px; font-size: .75rem; color: var(--muted); } .ls-end.l { left: 0; } .ls-end.r { right: 0; }
.ls-zones { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 12px; margin-top: 18px; }
@media (prefers-reduced-motion: reduce) { .pv-sling, .ls-mark { transition: none !important; } }

/* emblemas de nivel */
.medal { width: 44px; height: 44px; flex: none; }
.medal.big { width: 104px; height: 104px; align-self: center; margin-bottom: 4px; }
.medal.earned { filter: drop-shadow(0 4px 10px color-mix(in srgb, var(--accent) 45%, transparent)); }
.medal.locked { filter: grayscale(1); opacity: .45; }
.lv-title { gap: 12px; align-items: center; } .lv-head { gap: 8px; }
@media (prefers-reduced-motion: no-preference) { .medal.big { animation: medalpop .7s cubic-bezier(.2,.9,.3,1.3); } @keyframes medalpop { from { transform: scale(.6) rotate(-12deg); opacity: 0; } } }

/* ===== Pantallas grandes: barra lateral, más ancho y dos columnas ===== */
.day-grid { display: contents; }
.day-side, .day-main { min-width: 0; }
.day-side:empty { display: none; }
@media (min-width: 1000px) {
  body { font-size: 17px; }
  h1 { font-size: 2.3rem; } h2 { font-size: 1.5rem; } h3 { font-size: 1.15rem; }
  #app { max-width: 600px; padding-top: 40px; }
  body.has-tabs #app { max-width: 1160px; padding-left: 24px; padding-right: 24px; }
  body.has-tabs main { margin-left: 236px; padding-bottom: 48px; }
  body.has-tabs nav.tabs { left: max(24px, calc(50% - 580px)); right: auto; top: 112px; bottom: auto; width: 204px; background: transparent; border: 0; padding: 0; display: block; }
  body.has-tabs nav.tabs .inner { flex-direction: column; max-width: none; gap: 4px; }
  body.has-tabs .tab { display: flex; align-items: center; gap: 12px; text-align: left; font-size: 1rem; padding: 12px 14px; border-radius: 12px; flex: none; }
  body.has-tabs .tab span { display: inline-flex; font-size: 1.15rem; width: 24px; justify-content: center; }
  body.has-tabs .tab:hover { background: var(--surface2); }
  body.has-tabs .tab[aria-current=page] { background: var(--surface2); }
  body.has-tabs header.top { padding-left: 236px; }
  body.has-tabs .daylist { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  body.has-tabs .day-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
  body.has-tabs .day-side { position: sticky; top: 16px; order: 2; }
  body.has-tabs .day-main { order: 1; }
  body.has-tabs .day-grid:has(.day-side:empty) { grid-template-columns: minmax(0, 720px); }
  .card { padding: 20px; border-radius: 18px; }
}
@media (min-width: 1000px) and (max-height: 700px) { body.has-tabs .day-side { position: static; } }
body { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; font-feature-settings: "cv11", "ss03"; }
h1, h2, h3 { letter-spacing: -0.015em; }
.stack > .pill, .stack-sm > .pill { align-self: flex-start; }
.chart { width: 100%; max-width: 560px; height: auto; display: block; margin-inline: auto; }

.lesson-p { font-size: 1.05rem; line-height: 1.65; max-width: 62ch; }
@media (min-width: 1000px) { body.has-tabs .lesson { max-width: 720px; } .lesson-p { font-size: 1.12rem; } }
.tab span svg { width: 1.25rem; height: 1.25rem; display: block; margin: 0 auto; }

/* Programa plegable: solo se abre tu nivel y tu semana */
.prog-h { margin-top: 8px; }
details.level, details.week, details.fold { border: 1px solid var(--line); background: var(--surface); border-radius: 16px; }
details.level > summary, details.week > summary, details.fold > summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; min-height: 56px; border-radius: 16px; }
details > summary::-webkit-details-marker { display: none; }
details.level > summary::after, details.week > summary::after, details.fold > summary::after { content: '›'; font-size: 1.4rem; color: var(--muted); transition: transform .15s; transform: rotate(90deg); margin-left: 4px; }
details[open].level > summary::after, details[open].week > summary::after, details[open].fold > summary::after { transform: rotate(-90deg); }
details.level > summary .pill { margin-left: auto; }
details.level > .lv-sum, details.level > details.week { margin-left: 12px; margin-right: 12px; }
details.level { padding-bottom: 6px; }
details.level > details.week { margin-top: 8px; background: transparent; }
details.fold > :not(summary) { margin: 0 16px 14px; }
details.fold > summary > span { margin-left: auto; }
details.week > .daylist { padding: 0 8px 10px; }
.next-card .btn { margin-top: 8px; }
@media (min-width: 1000px) { body.has-tabs details.week > .daylist { grid-template-columns: 1fr 1fr; } }
details.fold.card { padding: 0; } details.fold > summary { min-height: 52px; }

/* chat de ayuda */
.chat { display: flex; flex-direction: column; gap: 10px; min-height: 120px; }
.bubble { max-width: 88%; padding: 10px 14px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.bubble.me { align-self: flex-end; background: var(--accent); color: var(--accent-fg); border-color: transparent; }
.bubble.warn { border-color: var(--warn); background: var(--surface2); }
.bubble p { margin: 0; line-height: 1.5; }
.chat-form { align-items: stretch; } .chat-form .btn { min-width: 90px; }

/* la app no se estira ni rebota como una página web */
html, body { overscroll-behavior-y: none; }
body { overflow-x: clip; -webkit-tap-highlight-color: transparent; }
.btn, .tab, button { -webkit-touch-callout: none; }
/* PIN con puntos */
.pin-wrap { position: relative; display: flex; justify-content: center; cursor: text; }
.pin-dots { display: flex; gap: 14px; padding: 14px 0; }
.pin-dots span { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--muted); box-sizing: border-box; transition: background .12s, border-color .12s; }
.pin-dots span.on { background: var(--accent); border-color: var(--accent); }
.pin-input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; font-size: 16px; border: 0; background: none; }
.hap { position: fixed; left: -40px; top: 0; width: 20px; height: 20px; opacity: .01; pointer-events: none; }

/* con el teclado abierto, la barra de abajo no flota encima de él */
@media (max-width: 819px) { body.kb nav.tabs, body.kb #tabhost { display: none; } }

/* botón de volver */
.back { align-self: flex-start; display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 8px 16px 8px 10px; border-radius: 999px; background: var(--surface2); border: 1px solid var(--line); color: var(--fg); text-decoration: none; font-weight: 600; font-size: .95rem; transition: transform .1s, background .15s; }
.back svg { width: 18px; height: 18px; flex: none; color: var(--accent); }
.back:hover { background: var(--surface); }
.back:active { transform: scale(.97); }
/* contraseña de la app */
.pin-text { -webkit-text-security: disc; text-security: disc; letter-spacing: .12em; }