/* Aprende Tidyverse — estilos del sitio público (portada, páginas de curso, login de Frappe).
   Fuente: diseño "Aprende Tidyverse Design Brief" (claude.ai/design), sistema base Psycal.
   Se publica en /files/at-sitio.css y se carga desde Website Settings → head_html.
   El diseño es solo en tema claro. */

/* Tokens: ver tokens.css (/files/at-tokens.css), que se carga antes que este archivo. */

/* ---------- Base del sitio web de Frappe (todas las páginas públicas y el login) ---------- */
html, body { background: var(--at-bg) !important; color-scheme: light; }
html body { font-family: var(--at-font); color: var(--at-ink); -webkit-font-smoothing: antialiased; }
/* Foco visible y común a sitio y aula (WCAG 2.4.7) */
:focus-visible { outline: 2px solid var(--at-primary) !important; outline-offset: 2px; }
.at-band :focus-visible { outline-color: var(--at-sand) !important; }

/* Barra superior de Frappe con el aspecto del diseño */
.navbar {
  position: sticky; top: 0; z-index: 50; min-height: 64px;
  background: rgba(248,249,251,0.82) !important; backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--at-line) !important; box-shadow: none !important;
}
.navbar .container { max-width: 1200px; padding: 0 32px; }
.navbar-brand { display: flex !important; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; letter-spacing: -0.01em; color: var(--at-ink) !important; }
.navbar-brand img { height: 30px; width: auto; }
.navbar .nav-link { font-size: 14px; font-weight: 600; color: var(--at-ink-2) !important; }
.navbar .nav-link:hover { color: var(--at-ink) !important; }
/* "Iniciar sesión" para invitados como botón con borde */
.navbar .btn-login-area, .navbar a.btn-login-area {
  min-height: 44px;
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600;
  color: var(--at-ink) !important; background: #fff; border: 1px solid var(--at-line);
  border-radius: 8px; padding: 8px 16px !important; text-decoration: none;
}
.navbar .btn-login-area:hover { background: var(--at-hover); }
/* La barra solo tiene "Iniciar sesión": sin menú hamburguesa, el enlace se ve siempre */
.navbar .navbar-toggler { display: none !important; }
.navbar .container { flex-wrap: nowrap; }
.navbar .navbar-collapse { display: flex !important; flex-basis: auto; flex-grow: 0; }
/* Avatar del usuario con sesión: iniciales en círculo con los colores de la marca */
.navbar .avatar { width: 34px; height: 34px; }
.navbar .avatar .avatar-frame, .navbar .avatar .standard-image {
  border-radius: 999px !important; background: var(--at-primary-soft) !important; color: var(--at-primary) !important;
  font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; width: 100%; height: 100%;
}
/* El pie de Frappe se reemplaza por el del diseño dentro de cada página */
.web-footer, footer.web-footer { display: none !important; }

/* ---------- Login y registro de Frappe ---------- */
.for-login, .for-signup, .for-forgot, .for-login-with-email-link { padding-top: 48px; }
.login-content.page-card, .page-card {
  background: #fff; border: 0 !important; border-radius: 14px !important;
  box-shadow: var(--at-shadow) !important; max-width: 420px;
}
.page-card-head h4 { font-weight: 700; letter-spacing: -0.01em; color: var(--at-ink); }
.page-card-head .app-logo, .page-card-head img { max-height: 48px; }
.form-signin .form-control, .page-card .form-control {
  border: 1px solid var(--at-line); border-radius: 8px; background: #fff; color: var(--at-ink); min-height: 44px;
}
.form-signin .form-control:focus { border-color: var(--at-primary); box-shadow: 0 0 0 3px var(--at-primary-soft); }
.btn-primary, .page-card .btn-primary, .form-signin .btn-primary {
  background: var(--at-primary) !important; border-color: var(--at-primary) !important; color: #fff !important;
  border-radius: 8px !important; font-weight: 600; min-height: 44px;
}
.btn-primary:hover { background: var(--at-primary-hover) !important; border-color: var(--at-primary-hover) !important; }
/* Botón principal del login ("Continuar"): Frappe lo marca como btn-default */
.page-card .btn-login:not(.btn-login-option), .page-card .btn-signup {
  background: var(--at-primary) !important; border: 1px solid var(--at-primary) !important; color: #fff !important;
  border-radius: 8px !important; font-weight: 600; font-size: 15px; min-height: 44px;
}
.page-card .btn-login:not(.btn-login-option):hover, .page-card .btn-signup:hover { background: var(--at-primary-hover) !important; }
.page-card .btn-login-option {
  background: #fff !important; border: 1px solid var(--at-line) !important; color: var(--at-ink) !important;
  border-radius: 8px !important; font-weight: 600; font-size: 14px; min-height: 44px;
}
.page-card .btn-login-option:hover { background: var(--at-hover) !important; }
.page-card-head h4, .page-card-head p { font-family: var(--at-font); }
.page-card a, .sign-up-message a, .forgot-password-message a { color: var(--at-primary); font-weight: 600; }

/* ---------- Componentes del diseño (prefijo at-) ---------- */
/* Frappe (website.bundle) hereda a todo el texto letter-spacing .02em y peso 420: se cortan aquí */
.at { font-family: var(--at-font); color: var(--at-ink); letter-spacing: normal; font-weight: 400; font-feature-settings: "cv11" 1; }
.at .at-footer { color: var(--at-ink); }
.at *, .at *::before, .at *::after { box-sizing: border-box; }
.at a { text-decoration: none; }
.at-wrap { max-width: 1200px; margin: 0 auto; padding-left: 32px; padding-right: 32px; }
.at-full { margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw); }
.at h1, .at h2, .at h3 { color: var(--at-ink); }
.at-eyebrow { font-size: var(--at-fs-overline); font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; color: var(--at-sand-text); }
.at-h1 { font-size: 56px; line-height: 1.04; font-weight: 700; letter-spacing: -0.028em; margin: 16px 0 0; text-wrap: balance; }
.at-h2 { font-size: 36px; line-height: 1.15; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
.at-lead { font-size: 17px; line-height: 1.6; color: var(--at-ink-2); margin: 12px 0 32px; max-width: 760px; }
.at-icon { flex-shrink: 0; }

.at-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 600;
  border-radius: var(--at-r-sm); padding: 0 22px; min-height: var(--at-h-btn-lg); cursor: pointer; border: 0; text-decoration: none !important;
  transition: background .15s cubic-bezier(0.2,0,0,1); font-family: inherit;
}
.at-btn--primary { color: #fff !important; background: var(--at-primary); }
.at-btn--primary:hover { background: var(--at-primary-hover); }
.at-btn--secondary { color: var(--at-ink) !important; background: #fff; border: 1px solid var(--at-line); }
.at-btn--secondary:hover { background: var(--at-hover); }
.at-btn--sand { color: var(--at-navy) !important; background: var(--at-sand); }
.at-btn--sand:hover { background: var(--at-sand-hover); }
.at-btn--sm { font-size: 14px; padding: 0 14px; min-height: var(--at-h-btn); width: 100%; }
.at-btn[aria-disabled="true"] { background: #F1F2F4; color: var(--at-ink-2) !important; cursor: default; border: 1px solid var(--at-line); }

.at-card { background: #fff; border-radius: var(--at-r-xl); box-shadow: var(--at-shadow); padding: 26px; }
.at-pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.at-check { display: flex; align-items: flex-start; gap: 9px; font-size: 14px; line-height: 1.5; color: var(--at-ink-2); }
.at-meta { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--at-ink-3); }

/* Hero */
.at-hero { padding: 84px 32px 64px; }
.at-hero__inner { max-width: 860px; margin: 0 auto; text-align: center; }
.at-hero__lead { font-size: 19px; line-height: 1.6; color: var(--at-ink-2); margin: 22px auto 0; max-width: 680px; text-wrap: pretty; }
.at-hero__ctas { display: flex; gap: 12px; margin-top: 32px; justify-content: center; flex-wrap: wrap; }
.at-hero__facts { display: flex; gap: 28px; margin-top: 36px; justify-content: center; flex-wrap: wrap; font-size: 14px; color: var(--at-ink-2); }
.at-hero__facts span { display: inline-flex; align-items: center; gap: 8px; }

/* Cómo funciona */
.at-steps { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.at-step__num { width: 40px; height: 40px; border-radius: 10px; background: var(--at-primary-soft); color: var(--at-navy-2); display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700; }
.at-step h3 { font-size: 19px; font-weight: 700; margin: 18px 0 0; }
.at-step p { font-size: 15px; line-height: 1.6; color: var(--at-ink-2); margin: 8px 0 0; }
.at-step__foot { font-size: 14px; font-weight: 700; margin-top: 16px; font-variant-numeric: tabular-nums; }

/* Banda de la serie (ruta) */
.at-band { background: var(--at-navy); color: #F8F9FB; }
.at-band__inner { padding-top: 64px; padding-bottom: 64px; }
.at-band__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.at-band .at-eyebrow { color: var(--at-sky); }
.at-band h2 { color: #fff; margin-top: 10px; }
.at-band__lead { font-size: 16px; line-height: 1.6; color: var(--at-sky-2); margin: 10px 0 0; max-width: 580px; }
.at-band__price { display: flex; flex-direction: column; align-items: flex-end; text-align: right; flex-shrink: 0; }
.at-band__price small { font-size: 13px; color: var(--at-sky); }
.at-band__price strong { font-size: 44px; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; margin: 2px 0 0; line-height: 1.2; }
.at-band__price em { font-style: normal; font-size: 14px; color: var(--at-sand); font-weight: 600; margin: 0 0 12px; }
.at-route { position: relative; margin-top: 48px; }
.at-route__line { position: absolute; top: 23px; left: 6.25%; right: 6.25%; height: 2px; background: linear-gradient(90deg, var(--at-sky), var(--at-navy-2)); }
.at-route__nodes { display: flex; }
.at-route__node { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 12px; color: inherit; }
.at-route__dot { position: relative; z-index: 1; width: 48px; height: 48px; border-radius: 999px; display: flex; align-items: center; justify-content: center; font-size: 19px; font-weight: 700; font-variant-numeric: tabular-nums; box-shadow: 0 0 0 4px var(--at-navy); }
.at-route__node.is-active .at-route__dot { box-shadow: 0 0 0 4px var(--at-navy), 0 0 0 7px var(--at-orange); background: var(--at-orange) !important; color: var(--at-navy) !important; }
.at-route__label { text-align: center; padding: 0 4px; }
.at-route__label b { display: block; font-size: 13px; font-weight: 600; color: #fff; }
.at-route__node.is-active .at-route__label b { color: var(--at-orange-soft); }
.at-route__label span { display: block; font-size: 12px; color: var(--at-sky); margin-top: 2px; }
.at-route--compact { margin-top: 0; padding: 24px 20px; border-radius: 12px; background: var(--at-navy); }
.at-route--compact .at-route__line { top: 43px; }
.at-route--compact .at-route__dot { width: 40px; height: 40px; font-size: 19px; }

/* Filas de cursos */
.at-courses { display: flex; flex-direction: column; gap: 16px; }
.at-course { display: flex; gap: 24px; align-items: stretch; background: #fff; border-radius: var(--at-r-lg); box-shadow: var(--at-shadow); padding: 24px 26px; transition: box-shadow .15s; }
.at-course:hover { box-shadow: var(--at-shadow-2); }
.at-course.is-soon { opacity: .92; }
.at-course__num { flex-shrink: 0; width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.at-course__body { flex: 1; min-width: 0; }
.at-course__title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.at-course__title h3 { font-size: 22px; font-weight: 600; margin: 0; }
.at-course__title h3 a { color: var(--at-ink); }
.at-course__title h3 a:hover { color: var(--at-primary); }
.at-course__desc { font-size: 15px; line-height: 1.55; color: var(--at-ink-2); margin: 8px 0 0; max-width: 640px; }
.at-course__metas { display: flex; align-items: center; gap: 18px; margin-top: 14px; flex-wrap: wrap; }
.at-course__side { flex-shrink: 0; width: 190px; display: flex; flex-direction: column; gap: 16px; border-left: 1px solid var(--at-line); padding-left: 24px; }
.at-course__price { text-align: right; }
.at-course__price strong { display: block; font-size: 24px; font-weight: 600; font-variant-numeric: tabular-nums; }
.at-course__price small { display: block; font-size: 12px; color: var(--at-ink-3); margin-top: 2px; }
.at-course__price s { display: block; font-size: 15px; color: var(--at-ink-4); font-variant-numeric: tabular-nums; }
.at-course__actions { display: flex; flex-direction: column; gap: 8px; }
.at-course--route { background: var(--at-sand-bg); border: 1.5px solid var(--at-sand-line); }
.at-course--route .at-course__side { border-left-color: var(--at-sand-line); }
.at-course--route .at-course__num { background: var(--at-sand); color: var(--at-sand-ink); }

/* Precios */
.at-prices { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; align-items: stretch; }
.at-price { display: flex; flex-direction: column; padding: 28px; }
.at-price--route { background: var(--at-sand-bg); border: 1.5px solid var(--at-sand-line); border-radius: 14px; box-shadow: none; }
.at-price__label { font-size: 14px; font-weight: 600; color: var(--at-ink-3); }
.at-price--route .at-price__label { color: var(--at-sand-text); }
.at-price__row { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-top: 8px; }
.at-price__row strong { font-size: 36px; font-weight: 700; font-variant-numeric: tabular-nums; }
.at-price__row s { font-size: 15px; color: var(--at-ink-4); }
.at-price__student { font-size: 15px; font-weight: 600; color: var(--at-sand-text); font-variant-numeric: tabular-nums; }
.at-price__list { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.at-price--route .at-check { color: #6b5a2a; }
.at-note { display: flex; align-items: center; gap: 10px; font-size: 14px; line-height: 1.5; color: var(--at-ink-2); margin-top: 16px; }

/* Servicios */
.at-services { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.at-service { padding: 28px; }
.at-service__icon { width: 44px; height: 44px; border-radius: 12px; background: var(--at-primary-soft); color: var(--at-primary); display: flex; align-items: center; justify-content: center; }
.at-service h3 { font-size: 20px; font-weight: 700; margin: 18px 0 0; }
.at-service__price { display: flex; align-items: baseline; gap: 6px; margin-top: 6px; }
.at-service__price strong { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.at-service__price span { font-size: 14px; color: var(--at-ink-3); }
.at-service p { font-size: 15px; line-height: 1.6; color: var(--at-ink-2); margin: 10px 0 16px; }
.at-service { display: flex; flex-direction: column; }
.at-service__boton { margin-top: auto; align-self: stretch; text-align: center; }
.at-service .at-price__list { margin-bottom: 22px; }
.at-patrocinadores { display: flex; flex-wrap: wrap; gap: 12px; }
.at-patrocinador { display: inline-flex; align-items: center; gap: 12px; background: #fff; border-radius: 999px; box-shadow: var(--at-shadow); padding: 8px 20px 8px 8px; }
.at-patrocinador__inicial { width: 40px; height: 40px; border-radius: 999px; background: var(--at-primary-soft); color: var(--at-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; letter-spacing: .02em; }
.at-patrocinador__nombre { font-size: 16px; font-weight: 600; color: var(--at-ink); }
.at-contact { font-size: 15px; color: var(--at-ink-2); margin-top: 18px; }
.at-contact a { font-weight: 600; color: var(--at-primary); }

/* Pie */
.at-footer { border-top: 1px solid var(--at-line); margin-top: 56px; }
.at-footer__inner { padding-top: 40px; padding-bottom: 40px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.at-footer__brand { display: flex; align-items: center; gap: 10px; }
.at-footer__brand img { height: 26px; width: auto; }
.at-footer__brand b { display: block; font-size: 14px; font-weight: 600; }
.at-footer__brand small { display: block; font-size: 12px; color: var(--at-ink-3); }
.at-footer nav { display: flex; gap: 20px; font-size: 13px; font-weight: 500; flex-wrap: wrap; }
.at-footer nav a { color: var(--at-ink-2); white-space: nowrap; display: inline-flex; align-items: center; min-height: 44px; }
.at-footer nav a:hover { color: var(--at-ink); }
.at-footer__pay { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--at-ink-3); }
.at-footer__pay b { font-weight: 600; color: var(--at-ink-2); }

/* Página de curso */
.at-detail { display: grid; grid-template-columns: minmax(0,1fr) 360px; gap: 48px; align-items: start; padding-top: 40px; }
.at-crumbs { font-size: 13px; color: var(--at-ink-2); }
.at-crumbs a { color: var(--at-primary); }
.at-detail__pills { display: flex; gap: 8px; margin-top: 20px; flex-wrap: wrap; }
.at-detail h1 { font-size: var(--at-fs-h1); line-height: 1.1; font-weight: 700; letter-spacing: -0.025em; margin: 16px 0 0; text-wrap: balance; }
/* Sin serifa: era el único texto con Source Serif del producto (vino de los testimonios del prototipo) */
.at-detail__intro { font-size: var(--at-fs-lead); line-height: 1.6; color: var(--at-ink-2); margin: 18px 0 0; max-width: 680px; }
.at-callout { display: flex; gap: 14px; align-items: flex-start; background: var(--at-warn-bg); color: var(--at-warn-ink); border-radius: 10px; padding: 16px 20px; margin-top: 28px; }
.at-callout b { display: block; font-size: 14px; font-weight: 600; }
.at-callout span { font-size: 14px; }
.at-detail h2 { font-size: var(--at-fs-h2); line-height: 1.2; font-weight: 700; letter-spacing: -0.015em; margin: 44px 0 16px; }
.at-learn { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px 28px; }
.at-learn .at-check { font-size: 15px; color: var(--at-ink); }
.at-modules { display: flex; flex-direction: column; gap: 10px; }
.at-module { background: #fff; border-radius: var(--at-r-md); box-shadow: var(--at-shadow); }
.at-module summary { list-style: none; display: flex; align-items: center; gap: 14px; padding: 12px 20px; min-height: 52px; cursor: pointer; font-size: 16px; font-weight: 500; color: var(--at-ink); }
.at-module summary::-webkit-details-marker { display: none; }
.at-module summary small { margin-left: auto; font-size: 13px; color: var(--at-ink-3); font-weight: 400; white-space: nowrap; }
.at-module__n { font-size: 13px; font-weight: 600; color: var(--at-ink-4); font-variant-numeric: tabular-nums; width: 22px; }
.at-module ol { margin: 0; padding: 0 20px 16px 56px; display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--at-ink-2); }
.at-module ol li span { color: var(--at-ink-4); font-variant-numeric: tabular-nums; }
.at-empty { background: #fff; border-radius: 10px; box-shadow: var(--at-shadow); padding: 28px; color: var(--at-ink-3); text-align: center; font-size: 15px; }
.at-buy { position: sticky; top: 88px; padding: 24px; border-radius: 14px; }
.at-buy__price { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.at-buy__price strong { line-height: 1.1; font-size: 34px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.at-buy__price small { font-size: 13px; color: var(--at-ink-3); }
.at-buy hr { border: 0; border-top: 1px solid var(--at-line); margin: 20px 0; }
.at-buy__row { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.at-buy__row b { display: block; font-size: 14px; font-weight: 600; }
.at-buy__row small { display: block; font-size: 12px; color: var(--at-ink-3); }
.at-buy__row strong { font-size: 18px; font-weight: 700; }
.at-buy__facts { display: flex; flex-direction: column; gap: 12px; font-size: 15px; color: var(--at-ink-2); }
.at-buy__facts span { display: flex; align-items: center; gap: 10px; }
.at-buy__inc { font-size: 13px; font-weight: 600; color: var(--at-ink-3); margin-bottom: 10px; }
.at-buy__foot { font-size: 13px; color: var(--at-ink-3); margin-top: 14px; }

/* ---------- Checkout (/comprar/<curso>) ---------- */
.at-co { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 48px; align-items: start; padding: 24px 0 0; }
.at-co__titulo { font-size: var(--at-fs-h1); line-height: 1.1; font-weight: 700; letter-spacing: -0.025em; margin: 0; }
.at-co__lead { font-size: var(--at-fs-lead); color: var(--at-ink-2); margin: 8px 0 32px; }
.at-co__cargando { color: var(--at-ink-3); padding: 24px 0; }
.at-co__paso { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 700; letter-spacing: -0.01em; margin: 32px 0 14px; }
.at-co__panel > .at-co__paso:first-child { margin-top: 0; }
.at-co__paso span { width: 28px; height: 28px; border-radius: 999px; background: var(--at-primary-soft); color: var(--at-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; flex-shrink: 0; }
.at-co__opciones { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.at-co__opcion { position: relative; cursor: pointer; display: block; margin: 0; }
.at-co__opcion input { position: absolute; opacity: 0; pointer-events: none; }
.at-co__opcion-cuerpo { display: flex; flex-direction: column; gap: 4px; padding: 18px 20px 18px 52px; border-radius: var(--at-r-lg); background: #fff; border: 1.5px solid var(--at-line); box-shadow: var(--at-shadow); transition: border-color .15s, box-shadow .15s; position: relative; min-height: 96px; }
.at-co__opcion-cuerpo::before { content: ""; position: absolute; left: 20px; top: 20px; width: 20px; height: 20px; border-radius: 999px; border: 2px solid var(--at-line); background: #fff; }
.at-co__opcion-cuerpo b { font-size: 17px; font-weight: 700; }
.at-co__opcion-cuerpo small { font-size: 14px; color: var(--at-ink-2); }
.at-co__opcion-cuerpo em { font-style: normal; font-size: 15px; font-weight: 700; color: var(--at-ink); margin-top: 4px; font-variant-numeric: tabular-nums; }
.at-co__opcion:hover .at-co__opcion-cuerpo { border-color: #CFC9BE; }
.at-co__opcion input:checked + .at-co__opcion-cuerpo { border-color: var(--at-primary); box-shadow: 0 0 0 3px var(--at-primary-soft); }
.at-co__opcion input:checked + .at-co__opcion-cuerpo::before { border-color: var(--at-primary); background: radial-gradient(circle, var(--at-primary) 0 5px, #fff 6px); }
.at-co__opcion input:focus-visible + .at-co__opcion-cuerpo { outline: 2px solid var(--at-primary); outline-offset: 2px; }
.at-co__segmento { display: inline-flex; background: #EFEBE4; border-radius: 10px; padding: 4px; gap: 4px; margin-bottom: 14px; }
.at-co__segmento button { border: 0; background: transparent; font: inherit; font-size: 15px; font-weight: 600; color: var(--at-ink-2); padding: 0 18px; min-height: 40px; border-radius: 8px; cursor: pointer; }
.at-co__segmento button[aria-selected="true"] { background: #fff; color: var(--at-ink); box-shadow: var(--at-shadow); }
.at-co__caja { padding: 22px 24px; }
.at-co__caja p { margin: 0 0 18px; color: var(--at-ink-2); font-size: 15px; line-height: 1.6; }
.at-co__monto { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding-bottom: 16px; margin-bottom: 4px; border-bottom: 1px solid var(--at-line); }
.at-co__monto small { font-size: 14px; color: var(--at-ink-3); }
.at-co__monto strong { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.at-co__dato { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid #F1EEE8; }
.at-co__dato:last-child { border-bottom: 0; padding-bottom: 0; }
.at-co__dato small { display: block; font-size: 13px; color: var(--at-ink-3); }
.at-co__dato b { display: block; font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }
.at-co__copiar { border: 1px solid var(--at-line); background: #fff; color: var(--at-primary); font: inherit; font-size: 14px; font-weight: 600; border-radius: 8px; padding: 0 14px; min-height: 40px; cursor: pointer; flex-shrink: 0; }
.at-co__copiar:hover { background: var(--at-primary-soft); }
.at-co__copiar.is-ok { color: var(--at-success); border-color: #BFDCC9; background: var(--at-success-bg); }
.at-co__archivo { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center; padding: 28px 20px; border: 2px dashed #CFC9BE; border-radius: var(--at-r-lg); background: #fff; color: var(--at-ink-2); cursor: pointer; transition: border-color .15s, background .15s; margin: 0; }
.at-co__archivo:hover, .at-co__archivo.is-encima { border-color: var(--at-primary); background: #F7FAFE; }
.at-co__archivo svg { color: var(--at-primary); }
.at-co__archivo b { font-size: 15px; color: var(--at-ink); font-weight: 600; word-break: break-word; }
.at-co__archivo small { font-size: 13px; color: var(--at-ink-3); }
.at-co__archivo.is-lleno { border-style: solid; border-color: #BFDCC9; background: #F6FBF8; }
.at-co__archivo.is-lleno svg { color: var(--at-success); }
.at-co__check { display: flex; align-items: flex-start; gap: 12px; margin: 18px 0 0; cursor: pointer; padding: 4px 0; }
.at-co__check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--at-primary); flex-shrink: 0; cursor: pointer; }
.at-co__check input:checked { background-color: var(--at-primary) !important; border-color: var(--at-primary) !important; }
.at-co__check b { display: block; font-size: 15px; font-weight: 600; color: var(--at-ink); }
.at-co__check small { display: block; font-size: 13px; color: var(--at-ink-3); margin-top: 2px; }
.at-co__factura { margin-top: 12px; padding: 20px 22px; }
.at-co__factura > p { margin: 0 0 16px; font-size: 14px; color: var(--at-ink-2); }
.at-co__campos { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.at-co__campo { display: flex; flex-direction: column; gap: 6px; margin: 0; }
.at-co__campo--ancho { grid-column: 1 / -1; }
.at-co__campo span { font-size: 13px; font-weight: 600; color: var(--at-ink-2); }
.at-co__campo input, .at-co__campo select { font: inherit; font-size: 16px; color: var(--at-ink); background: #fff; border: 1.5px solid var(--at-line); border-radius: 10px; min-height: 44px; padding: 0 12px; width: 100%; }
.at-co__campo input:focus, .at-co__campo select:focus { outline: none; border-color: var(--at-primary); box-shadow: 0 0 0 3px var(--at-primary-soft); }
.at-co__boton { width: 100%; margin-top: 16px; }
.at-co__boton:disabled { opacity: .55; cursor: not-allowed; }
.at-co__boton.is-ocupado { opacity: .8; cursor: progress; }
.at-co__error { margin: 10px 0 0; font-size: 14px; color: #8A2E26; background: #F7E6E3; border-radius: 8px; padding: 10px 14px; }
.at-co__nota { font-size: 13px; color: var(--at-ink-3); margin: 12px 0 0; text-align: center; }
.at-co__aviso { display: flex; gap: 16px; align-items: flex-start; padding: 24px; }
.at-co__aviso h2 { font-size: 20px; font-weight: 700; margin: 2px 0 6px; }
.at-co__aviso p { margin: 0; color: var(--at-ink-2); line-height: 1.6; }
.at-co__aviso-icono { width: 44px; height: 44px; border-radius: 12px; background: var(--at-primary-soft); color: var(--at-primary); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.at-co__aviso--ok .at-co__aviso-icono { background: var(--at-success-bg); color: var(--at-success); }
.at-co__acciones { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.at-co__resumen { position: sticky; top: 88px; padding: 22px 24px; }
.at-co__resumen hr { border: 0; border-top: 1px solid var(--at-line); margin: 16px 0; }
.at-co__resumen-titulo { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--at-ink-3); }
.at-co__resumen-curso { display: block; font-size: 17px; font-weight: 700; line-height: 1.35; margin-top: 8px; }
.at-co__resumen-linea { font-size: 14px; color: var(--at-ink-2); margin-top: 4px; }
.at-co__resumen-total { display: flex; justify-content: space-between; align-items: baseline; font-size: 15px; font-weight: 600; }
.at-co__descuento { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--at-success); background: var(--at-success-bg); border-radius: 8px; padding: 8px 10px; }
.at-co__descuento > span { display: inline-flex; align-items: center; gap: 6px; }
.at-co__descuento s { color: var(--at-ink-4); font-weight: 400; font-variant-numeric: tabular-nums; }
.at-co__pista { margin: 12px 0 0; font-size: 13px; line-height: 1.5; color: var(--at-ink-2); background: var(--at-primary-soft); border-radius: 8px; padding: 10px 12px; }
.at-co__pista b { color: var(--at-primary); white-space: nowrap; }
.at-co__resumen-total strong { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.at-co__seguro { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--at-ink-3); margin-top: 16px; }
@media (max-width: 960px) {
  .at-co { grid-template-columns: minmax(0,1fr); gap: 28px; }
  .at-co__resumen { position: static; order: -1; }
}
@media (max-width: 600px) {
  .at-co__opciones { grid-template-columns: minmax(0,1fr); }
  .at-co__titulo { font-size: 30px; }
  .at-co__segmento { display: flex; } .at-co__segmento button { flex: 1; }
}

/* ---------- Administración de pagos (/pagos-pendientes) ---------- */
.at-adm { padding: 40px 0 0; max-width: 900px; }
.at-adm h1 { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 6px; }
.at-adm__lista { display: flex; flex-direction: column; gap: 14px; margin-top: 24px; }
.at-adm__pago { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 16px; align-items: center; padding: 20px 22px; }
.at-adm__pago b { font-size: 16px; } .at-adm__pago small { display: block; color: var(--at-ink-3); font-size: 13px; margin-top: 2px; }
.at-adm__monto { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.at-adm__acciones { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.at-adm__acciones .at-btn { min-height: 40px; padding: 0 16px; font-size: 14px; }
.at-btn--peligro { color: #8A2E26 !important; background: #fff; border: 1px solid #E8C7C2; }
.at-btn--peligro:hover { background: #F7E6E3; }
@media (max-width: 700px) { .at-adm__pago { grid-template-columns: minmax(0,1fr); } .at-adm__acciones { justify-content: flex-start; } }

/* ---------- Adaptación a pantallas pequeñas (el prototipo es solo de escritorio) ---------- */
@media (max-width: 960px) {
  .at-detail { grid-template-columns: minmax(0,1fr); gap: 32px; }
  .at-buy { position: static; }
}
@media (max-width: 860px) {
  .at-steps, .at-prices, .at-services, .at-learn { grid-template-columns: minmax(0,1fr); }
  .at-course { flex-direction: column; gap: 16px; padding: 20px; }
  .at-course__side { width: auto; border-left: 0; padding-left: 0; border-top: 1px solid var(--at-line); padding-top: 16px; }
  .at-course--route .at-course__side { border-top-color: var(--at-sand-line); }
  .at-course__price { text-align: left; }
  .at-band__price { align-items: flex-start; text-align: left; }
  .at-route__nodes { flex-wrap: wrap; row-gap: 24px; }
  .at-route__nodes { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); }
  .at-route__line { display: none; }
}
@media (max-width: 600px) {
  .at-wrap, .navbar .container { padding-left: 16px; padding-right: 16px; }
  .at-hero { padding: 48px 16px 40px; }
  .at-h1 { font-size: 38px; }
  .at-h2 { font-size: 28px; }
  .at-detail h1 { font-size: 30px; }
  .at-hero__ctas .at-btn { flex: 1 1 100%; }
  .at-hero__facts { gap: 14px 22px; }
  .at-route__dot { width: 40px; height: 40px; font-size: 14px; }
  .at-footer__inner { flex-direction: column; align-items: flex-start; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }
.at-adm__factura { margin-top: 10px; font-size: 14px; color: var(--at-ink-2); background: var(--at-primary-soft); border-radius: 8px; padding: 8px 12px; }
.at-adm__factura b { color: var(--at-primary); margin-right: 6px; }

/* Registro: aviso discreto del precio de estudiante y preguntas cortas (los inserta sitio.js) */
.at-registro { display: flex; flex-direction: column; gap: 14px; text-align: left; margin-top: 2px; }
.at-registro__precio { display: flex; gap: 8px; align-items: flex-start; margin: -4px 0 0; font-size: 13px; line-height: 1.45; color: var(--at-ink-3); }
.at-registro__precio svg { flex-shrink: 0; margin-top: 1px; color: var(--at-ink-4); }
.at-registro__precio b { font-weight: 600; color: var(--at-ink-2); white-space: nowrap; }
.at-registro.is-estudiante .at-registro__precio, .at-registro.is-estudiante .at-registro__precio svg,
.at-registro.is-estudiante .at-registro__precio b { color: var(--at-success); }
.at-registro__titulo { font-size: 14px; font-weight: 600; color: var(--at-ink); margin-top: 6px; padding-top: 14px; border-top: 1px solid var(--at-line); }
.at-registro__campo { display: flex; flex-direction: column; gap: 6px; margin: 0; }
.at-registro__campo > span { font-size: 13px; font-weight: 500; color: var(--at-ink-2); }
.at-registro__campo select, .at-registro__campo input { font: inherit; font-size: 15px; color: var(--at-ink); background: #fff; border: 1px solid var(--at-line); border-radius: 8px; min-height: 44px; padding: 0 12px; width: 100%; }
.at-registro__campo select:invalid, .at-registro__campo select:has(option[value=""]:checked) { color: var(--at-ink-3); }
.at-registro__campo select:focus, .at-registro__campo input:focus { outline: none; border-color: var(--at-primary); box-shadow: 0 0 0 3px var(--at-primary-soft); }
.at-registro__campo .is-invalido { border-color: #C2453A; }
.at-registro__campo small { font-size: 13px; color: #8A2E26; }