/* Aula virtual — estilos. Los colores vienen de /brand.css (config/brand.json). */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--c-page); color: var(--c-ink);
  font: 1.0625rem/1.55 var(--font-body, "Source Sans 3", Arial, Helvetica, sans-serif);
}
img { max-width: 100%; height: auto; }
h1, h2, h3 { font-family: var(--font-head, "Montserrat", Arial, sans-serif); font-weight: 600; line-height: 1.25; color: var(--c-primaryDark); margin: 0 0 .6rem; }
h1 { font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.3rem); }
h2 { font-size: clamp(1.25rem, 1.05rem + .9vw, 1.6rem); margin-top: 0; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }
a { color: var(--c-link); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
code { background: #E8EDEA; padding: .1em .35em; border-radius: 4px; font-size: .92em; }
:focus-visible { outline: 3px solid var(--c-accent); outline-offset: 2px; border-radius: 3px; }
main:focus { outline: none; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--c-primaryDark); color: #fff; padding: .75rem 1rem; z-index: 100; }
.skip-link:focus { left: 0; }
.muted { color: var(--c-muted); }
.small { font-size: .875rem; }
.wrap { width: min(1120px, 100% - 2rem); margin-inline: auto; }
.narrow { width: min(540px, 100% - 2rem); margin-inline: auto; padding-block: 2rem; }
.narrow-wide { width: min(780px, 100% - 2rem); margin-inline: auto; padding-block: 1.5rem 3rem; }
main { padding-top: 1.25rem; padding-bottom: 3rem; min-height: 60vh; }

/* Cabecera */
.site-header { background: var(--c-surface); border-bottom: 1px solid var(--c-line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block: .6rem; }
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; color: var(--c-primaryDark); }
.brand-logo { display: block; height: 44px; width: auto; }
.brand-text { border-left: 1px solid var(--c-line); padding-left: .8rem; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text small { color: var(--c-muted); font-size: .78rem; }
.main-nav { display: flex; align-items: center; gap: .25rem 1.1rem; flex-wrap: wrap; }
.main-nav a:not(.btn) { color: var(--c-ink); text-decoration: none; padding: .5rem .1rem; border-bottom: 3px solid transparent; }
.main-nav a:not(.btn):hover { border-bottom-color: var(--c-line); }
.main-nav a[aria-current="page"] { border-bottom-color: var(--c-accent); font-weight: 600; }
.inline-form { display: inline; margin: 0; }
.link-button { background: none; border: 0; padding: .5rem .1rem; font: inherit; color: var(--c-link); text-decoration: underline; cursor: pointer; min-height: 44px; }
.notice-bar { background: var(--c-warnSoft); color: var(--c-warn); border-bottom: 1px solid #F0D3A5; font-size: .875rem; }
.notice-bar .wrap { padding-block: .55rem; }
.flash { background: var(--c-accentSoft); border: 1px solid #B3D0C6; border-left: 5px solid var(--c-accent); padding: .75rem 1rem; border-radius: 6px; margin: 1rem 0 0; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem; min-height: 44px;
  padding: .6rem 1.2rem; border-radius: 8px; border: 2px solid var(--c-primary); background: var(--c-primary);
  color: #fff; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; text-align: center;
}
.btn:hover { background: var(--c-primaryDark); border-color: var(--c-primaryDark); }
.btn-secondary { background: var(--c-surface); color: var(--c-primary); }
.btn-secondary:hover { background: #EAEFEC; color: var(--c-primaryDark); }
.btn-danger { background: var(--c-danger); border-color: var(--c-danger); }
.btn-danger:hover { background: #7E1812; border-color: #7E1812; }
.btn-small { min-height: 36px; padding: .3rem .8rem; font-size: .9rem; }
.btn.is-disabled, .btn[disabled] { opacity: .55; cursor: not-allowed; pointer-events: none; }

/* Formularios */
.form { margin-block: 1.25rem; }
.field { margin-bottom: 1.1rem; }
label, legend { font-weight: 600; display: block; margin-bottom: .3rem; }
input:not([type=radio]):not([type=checkbox]), select, textarea {
  width: 100%; min-height: 44px; padding: .55rem .7rem; font: inherit; color: var(--c-ink);
  background: #fff; border: 1.5px solid #66757C; border-radius: 6px;
}
textarea { min-height: 96px; }
input[aria-invalid="true"] { border-color: var(--c-danger); border-width: 2px; }
.help { color: var(--c-muted); font-size: .875rem; margin: .3rem 0 0; }
.field-error { color: var(--c-danger); font-weight: 600; font-size: .9rem; margin: .3rem 0 0; }
fieldset { border: 0; padding: 0; margin: 0 0 1.25rem; min-width: 0; }
.form-grid { display: grid; gap: 0 1.25rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); align-items: start; }
.field-wide { grid-column: 1 / -1; }
.check { display: flex; gap: .6rem; align-items: flex-start; font-weight: 400; }
.check input { margin-top: .3rem; width: 20px; height: 20px; flex: none; }
.inline-search { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; }
.inline-search .field { flex: 1 1 260px; margin: 0; }

/* Avisos */
.alert { border: 1px solid var(--c-line); border-left: 6px solid var(--c-muted); background: #fff; padding: .9rem 1.1rem; border-radius: 6px; margin: 1rem 0; }
.alert p:last-child, .alert ul:last-child { margin-bottom: 0; }
.alert ul { margin: .4rem 0 0; padding-left: 1.2rem; }
.alert-error { border-left-color: var(--c-danger); background: var(--c-dangerSoft); }
.alert-warn { border-left-color: #B26A00; background: var(--c-warnSoft); }
.alert-ok { border-left-color: var(--c-accent); background: var(--c-accentSoft); }
.empty { text-align: center; background: #fff; border: 1px dashed var(--c-line); border-radius: 10px; padding: 2rem 1rem; }

/* Insignias de estado: icono + texto, nunca solo color */
.badge { display: inline-flex; align-items: center; gap: .3rem; font-size: .78rem; font-weight: 600; padding: .12rem .55rem; border-radius: 999px; border: 1.5px solid currentColor; white-space: nowrap; color: var(--c-muted); background: #fff; }
.badge-completed, .badge-passed, .badge-valid { color: #1B4E42; background: #E6F1ED; }
.badge-in_progress, .badge-available { color: #8A4B00; background: #FFF6E5; }
.badge-failed, .badge-exhausted, .badge-revoked { color: var(--c-danger); background: var(--c-dangerSoft); }
.badge-locked, .badge-locked_module, .badge-locked_items { color: #3F4D54; background: #E9EDEA; }
.tag { display: inline-block; font-size: .78rem; font-weight: 700; padding: .12rem .55rem; border-radius: 6px; background: #E3EAE6; color: var(--c-primaryDark); }
.eyebrow { text-transform: uppercase; letter-spacing: .06em; font-size: .78rem; font-weight: 700; color: var(--c-accent); margin-bottom: .35rem; }
.breadcrumb { font-size: .9rem; margin: 1.25rem 0 .5rem; }
.meta { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-bottom: 1.25rem; }

/* Progreso */
progress.bar { width: 100%; height: 14px; border: 0; border-radius: 99px; background: #D9E1DD; overflow: hidden; accent-color: var(--c-accent); appearance: none; -webkit-appearance: none; display: block; }
progress.bar::-webkit-progress-bar { background: #D9E1DD; border-radius: 99px; }
progress.bar::-webkit-progress-value { background: var(--c-accent); border-radius: 99px; }
progress.bar::-moz-progress-bar { background: var(--c-accent); border-radius: 99px; }
progress.bar-large { height: 20px; }
.big-number { font-size: 3rem; font-weight: 800; color: var(--c-primary); margin: 0; line-height: 1.1; }

/* Portada */
.hero { background: linear-gradient(180deg, #fff 0%, var(--c-page) 100%); border-bottom: 1px solid var(--c-line); }
.hero-inner { display: grid; gap: 2rem; grid-template-columns: 1fr auto; align-items: center; padding-block: 2.5rem; }
.hero-logo { justify-self: center; }
.lead { font-size: 1.12rem; max-width: 62ch; }
.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; }
.section { margin-block: 2.2rem; }
.checklist, .steps { padding-left: 1.3rem; }
.checklist li, .steps li { margin-bottom: .6rem; }
.module-grid { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.card { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: 1.2rem 1.3rem; box-shadow: 0 1px 2px rgba(20,45,62,.05); }
.card.is-locked, .module-block.is-locked { background: #EEF0EC; }
.syllabus { padding-left: 1.2rem; margin: .5rem 0 0; }
details > summary { cursor: pointer; font-weight: 600; min-height: 32px; }

/* Panel y aula */
.panel-hero { display: grid; gap: 1.5rem; grid-template-columns: 2fr 1fr; background: #fff; border: 1px solid var(--c-line); border-radius: 14px; padding: 1.5rem; margin-block: 1rem; }
.panel-cta { border-left: 1px solid var(--c-line); padding-left: 1.5rem; display: flex; flex-direction: column; justify-content: center; }
.target-title { font-weight: 700; font-size: 1.1rem; }
.aula-layout { display: grid; grid-template-columns: 310px minmax(0, 1fr); gap: 2rem; padding-top: 1.5rem; align-items: start; }
.aula-side { position: sticky; top: 1rem; max-height: calc(100vh - 2rem); overflow: auto; }
.course-nav { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: .8rem 1rem; }
.course-nav > summary { margin-bottom: .6rem; }
.nav-module { border-top: 1px solid var(--c-line); padding: .45rem 0; }
.nav-module > summary { display: flex; justify-content: space-between; gap: .5rem; align-items: center; flex-wrap: wrap; font-size: .93rem; }
.nav-module ol { list-style: none; margin: .35rem 0 .2rem; padding: 0; }
.nav-module li a { display: flex; justify-content: space-between; gap: .5rem; align-items: center; padding: .4rem .5rem; border-radius: 6px; text-decoration: none; color: var(--c-ink); font-size: .9rem; }
.nav-module li a:hover { background: #EAEFEC; }
.nav-module li a[aria-current="page"] { background: #E3EAE6; font-weight: 700; box-shadow: inset 4px 0 0 var(--c-primary); }
.nav-item-title { flex: 1; min-width: 0; }
.nav-locked { margin: .3rem 0 0; }
.nav-final { margin: .8rem 0 0; padding-top: .6rem; border-top: 1px solid var(--c-line); }
.aula-main { background: #fff; border: 1px solid var(--c-line); border-radius: 14px; padding: clamp(1.1rem, 3vw, 2.2rem); min-width: 0; }
.prose { max-width: 70ch; font-size: 1.04rem; }
.prose h2 { font-size: 1.25rem; margin-top: 1.8rem; }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li { margin-bottom: .45rem; }
.prose table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .97rem; }
.prose th, .prose td { border: 1px solid var(--c-line); padding: .6rem .75rem; text-align: left; vertical-align: top; }
.prose th { background: #EAEFEC; }
.callout { border: 1px solid var(--c-line); border-left: 6px solid var(--c-primary); background: #F3F5F1; padding: .9rem 1.1rem; border-radius: 8px; margin: 1.3rem 0; max-width: 70ch; }
.callout p:last-child { margin-bottom: 0; }
.callout-title { font-weight: 800; margin-bottom: .4rem; color: var(--c-primaryDark); }
.callout-ejemplo { border-left-color: var(--c-accent); background: var(--c-accentSoft); }
.callout-clave { border-left-color: #B26A00; background: var(--c-warnSoft); }
.callout-reflexion { border-left-color: #55646B; background: #EEF1EE; }
.callout-recuerda { border-left-color: var(--c-primary); }
.callout-objetivo { border-left-color: var(--c-primaryDark); background: #EAEFEC; }
.callout-norma { border-left-color: #B26A00; background: var(--c-warnSoft); }
.finish-box { margin: 2rem 0 1.5rem; padding: 1.1rem 1.3rem; border: 2px dashed var(--c-line); border-radius: 12px; background: #FAFAF7; }
.finish-box h2 { font-size: 1.15rem; }
.step-nav { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; margin-top: 1.5rem; padding-top: 1.2rem; border-top: 1px solid var(--c-line); }
.step-nav .btn { flex-direction: column; align-items: flex-start; text-align: left; gap: 0; height: 100%; }
.step-nav .btn-next { grid-column: 2; align-items: flex-end; text-align: right; }
.step-dir { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; opacity: .85; }
.step-title { font-weight: 600; }
.step-lock { grid-column: 2; text-align: right; }
.module-block { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: 1.2rem 1.4rem; margin-block: 1.1rem; }
.item-list { padding-left: 1.3rem; }
.item-list li { margin-bottom: .7rem; }
.item-list .badge { margin-left: .35rem; }
.item-eval { list-style: none; margin-left: -1.3rem; padding: .7rem 1rem; background: #F1F4F1; border-radius: 8px; }
.item-eval-text { display: block; margin-top: .3rem; color: var(--c-muted); }

/* Actividades y evaluaciones */
.case { border: 1px solid var(--c-line); border-radius: 12px; padding: 1.1rem 1.2rem; margin: 1.2rem 0; background: #FBFBF8; }
.case h2 { font-size: 1.1rem; }
.case legend { font-weight: 600; margin-bottom: .7rem; padding: 0; }
.option { display: flex; gap: .7rem; align-items: flex-start; border: 1.5px solid var(--c-line); background: #fff; border-radius: 8px; padding: .75rem .9rem; margin-bottom: .55rem; font-weight: 400; cursor: pointer; }
.option:hover { border-color: var(--c-primary); }
.option:has(input:checked) { border-color: var(--c-primary); background: #EAEFEC; box-shadow: inset 4px 0 0 var(--c-primary); }
.option input { width: 22px; height: 22px; margin-top: .15rem; flex: none; accent-color: var(--c-primary); }
.opt-letter { color: var(--c-primary); }
.feedback { margin-top: 1rem; padding: .9rem 1.1rem; border-radius: 8px; border: 1px solid var(--c-line); border-left-width: 6px; }
.feedback p:last-child { margin-bottom: 0; }
.feedback-title { font-weight: 800; margin-bottom: .3rem; }
.feedback-ok { border-left-color: var(--c-accent); background: var(--c-accentSoft); }
.feedback-review { border-left-color: #B26A00; background: var(--c-warnSoft); }
.question { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: 1.1rem 1.2rem; margin-bottom: 1.2rem; }
.question legend { float: left; width: 100%; padding: 0; margin-bottom: .8rem; }
.question legend + .option { clear: both; }
.q-number { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--c-muted); }
.q-text { display: block; font-size: 1.1rem; margin-top: .2rem; }
.score-card { text-align: center; border-radius: 14px; padding: 1.5rem; margin: 1.2rem 0; border: 2px solid; }
.score-card.is-pass { border-color: var(--c-accent); background: var(--c-accentSoft); }
.score-card.is-fail { border-color: #B26A00; background: var(--c-warnSoft); }
.score { font-size: 2.4rem; font-weight: 800; margin: 0; color: var(--c-primaryDark); }
.score-verdict { font-size: 1.3rem; font-weight: 700; margin: .2rem 0; }
.result-list { padding-left: 1.3rem; }
.result-item { margin-bottom: 1.1rem; padding: .8rem 1rem; border-radius: 8px; border: 1px solid var(--c-line); border-left-width: 6px; list-style-position: outside; }
.result-item.is-correct { border-left-color: var(--c-accent); }
.result-item.is-wrong { border-left-color: var(--c-danger); }
.result-item p { margin-bottom: .35rem; }
.result-mark { font-weight: 700; }

/* Tablas y datos */
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--c-line); border-radius: 10px; margin-block: 1rem; }
table { border-collapse: collapse; width: 100%; font-size: .94rem; }
th, td { padding: .7rem .85rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--c-line); }
thead th { background: #EAEFEC; font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; color: var(--c-primaryDark); }
tbody th { font-weight: 600; }
tbody tr:last-child > * { border-bottom: 0; }
.data-list { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1.2rem; margin: 1rem 0; }
.data-list dt { font-weight: 700; color: var(--c-muted); }
.data-list dd { margin: 0; overflow-wrap: anywhere; }
.verify-card { margin-top: 1.5rem; background: #fff; border: 2px solid; border-radius: 12px; padding: 1.2rem 1.4rem; }
.verify-card.is-valid { border-color: var(--c-accent); }
.verify-card.is-revoked { border-color: var(--c-danger); }
.verify-status { display: flex; align-items: center; gap: .6rem; font-size: 1.15rem; }
.admin-nav { display: flex; gap: .3rem 1rem; flex-wrap: wrap; border-bottom: 1px solid var(--c-line); margin: .5rem 0 1.5rem; }
.admin-nav a { padding: .55rem .2rem; color: var(--c-ink); text-decoration: none; border-bottom: 3px solid transparent; }
.admin-nav a[aria-current="page"] { border-bottom-color: var(--c-primary); font-weight: 700; }
.stat-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); margin-block: 1.5rem; }
.stat { background: #fff; border: 1px solid var(--c-line); border-radius: 10px; padding: 1rem 1.2rem; }
.stat p { margin: 0; }
.stat-n { font-size: 2rem; font-weight: 800; color: var(--c-primary); }
.plain-list { list-style: none; padding: 0; }
.plain-list li { padding: .45rem 0; border-bottom: 1px solid var(--c-line); }
.pager { display: flex; gap: 1rem; align-items: center; justify-content: center; margin: 1rem 0; }
.revoke summary { color: var(--c-danger); }

.site-footer { border-top: 1px solid var(--c-line); background: #fff; padding-block: 1.5rem; }
.site-footer p { margin: .15rem 0; }

@media (max-width: 900px) {
  .aula-layout { grid-template-columns: 1fr; gap: 1rem; }
  .aula-side { position: static; max-height: none; }
  .panel-hero { grid-template-columns: 1fr; }
  .panel-cta { border-left: 0; padding-left: 0; border-top: 1px solid var(--c-line); padding-top: 1rem; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-logo { width: 150px; height: 150px; order: -1; justify-self: start; }
}
@media (max-width: 520px) {
  .brand-text small { display: none; }
  .step-nav { grid-template-columns: 1fr; }
  .step-nav .btn-next, .step-lock { grid-column: 1; }
  .step-lock { text-align: left; }
  .data-list { grid-template-columns: 1fr; gap: 0; }
  .data-list dd { margin-bottom: .6rem; }
  .btn { width: 100%; }
  .main-nav .btn, .inline-form .link-button { width: auto; }
  .hero-actions .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
@media print { .site-header, .site-footer, .aula-side, .step-nav, .notice-bar { display: none; } body { background: #fff; } }