/* Bilakai · Curso «IA para tu negocio» · venta y aula. Se apoya en site.css. */

/* ---------- Página de venta ---------- */
.cia-hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.cia-hero .h-mega { font-size: clamp(2rem, 4.1vw, 3.9rem); line-height: 1.02; }
.cia-price { display: inline-flex; align-items: baseline; gap: 10px; margin: 0 0 18px; padding: 8px 16px; border-radius: 999px; background: rgba(242, 194, 48, .14); box-shadow: inset 0 0 0 1px rgba(242, 194, 48, .45); color: #fff; font-weight: 700; }
.cia-price b { font-size: 1.5rem; font-weight: 900; font-stretch: 118%; color: var(--senal); line-height: 1; }
.cia-price small { font-weight: 600; opacity: .85; }

/* Vista previa del aula en la portada */
.cia-preview { position: relative; border-radius: 24px; background: #fff; color: var(--tinta); box-shadow: var(--shadow-lg); overflow: hidden; }
.cia-preview-top { display: flex; align-items: center; gap: 10px; padding: 14px 18px; background: var(--papel); border-bottom: 1px solid var(--linea); font-size: .85rem; color: var(--gris); font-weight: 600; }
.cia-preview-top i { width: 9px; height: 9px; border-radius: 50%; background: var(--linea); }
.cia-preview-top i:first-child { background: var(--senal); }
.cia-preview-body { padding: 20px 20px 22px; display: grid; gap: 14px; }
.cia-preview-bar { height: 8px; border-radius: 99px; background: var(--niebla); overflow: hidden; }
.cia-preview-bar i { display: block; width: 38%; height: 100%; background: var(--acero); border-radius: 99px; }
.cia-preview ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.cia-preview li { display: grid; grid-template-columns: 26px minmax(0, 1fr) auto; gap: 10px; align-items: center; font-size: .92rem; font-weight: 600; padding: 7px 10px; border-radius: 10px; }
.cia-preview li.on { background: var(--papel); }
.cia-preview li .n { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: var(--niebla); color: var(--acero); font-size: .78rem; font-weight: 800; }
.cia-preview li.done .n { background: var(--acero); color: #fff; }
.cia-preview li.on .n { background: var(--senal); color: var(--tinta); }
.cia-preview li small { color: var(--gris); font-weight: 500; }
.cia-preview-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.cia-preview-tags span { font-size: .8rem; font-weight: 700; padding: 5px 10px; border-radius: 99px; background: rgba(25, 77, 111, .1); color: var(--acero); }

.cia-sec-intro { max-width: 60ch; }
.cia-datos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 32px; }
.cia-dato { padding: 24px 22px 20px; border-radius: 20px; background: #fff; border: 1px solid var(--linea); box-shadow: var(--shadow-sm); display: grid; gap: 10px; align-content: start; }
.cia-dato b { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 900; font-stretch: 118%; line-height: 1; color: var(--acero); letter-spacing: -.01em; }
.cia-dato p { margin: 0; color: var(--tinta); }
.cia-dato small { color: var(--gris); font-size: .84rem; line-height: 1.45; }
.cia-meaning { margin-top: 24px; padding: 22px 24px; border-radius: 18px; background: var(--ria); color: #fff; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 28px; align-items: center; }
.cia-meaning p { margin: 6px 0 0; color: rgba(225, 236, 243, .85); max-width: 70ch; }
.cia-meaning strong { color: var(--senal); }

.cia-lecciones { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.cia-leccion { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 14px; padding: 18px 18px 18px 16px; border-radius: 18px; background: #fff; border: 1px solid var(--linea); }
.cia-leccion .n { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: var(--ria); color: var(--senal); font-weight: 900; font-stretch: 118%; font-size: 1.1rem; }
.cia-leccion h3 { margin: 0 0 4px; font-size: 1.08rem; font-weight: 750; font-stretch: 112%; line-height: 1.25; }
.cia-leccion p { margin: 0; color: var(--gris); font-size: .95rem; }
.cia-leccion small { display: inline-block; margin-top: 8px; color: var(--acero); font-weight: 700; font-size: .8rem; }

.cia-llevas { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.cia-lleva { padding: 26px 24px; border-radius: 20px; background: rgba(255, 255, 255, .06); box-shadow: inset 0 0 0 1px rgba(143, 180, 204, .22); color: #fff; display: grid; gap: 12px; align-content: start; }
.cia-lleva .ico { width: 48px; height: 48px; padding: 11px; border-radius: 14px; background: var(--senal); color: var(--tinta); }
.cia-lleva h3 { margin: 0; font-size: 1.25rem; font-weight: 800; font-stretch: 115%; }
.cia-lleva p { margin: 0; color: rgba(225, 236, 243, .8); }

.cia-quien { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cia-quien > div { padding: 26px 24px; border-radius: 20px; background: #fff; border: 1px solid var(--linea); }
.cia-quien h3 { margin: 0 0 14px; font-size: 1.2rem; font-weight: 800; font-stretch: 112%; }
.cia-quien ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.cia-quien li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; color: var(--tinta); }
.cia-quien .si .ico { color: #157347; }
.cia-quien .no .ico { color: #B42318; }

.cia-autor { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 24px; align-items: center; padding: 28px; border-radius: 22px; background: #fff; border: 1px solid var(--linea); }
.cia-autor .brand-tile { width: 72px; height: 72px; border-radius: 20px; }
.cia-autor .brand-tile img { width: 60px; height: 60px; }
.cia-autor h3 { margin: 0 0 8px; font-size: 1.3rem; font-weight: 800; font-stretch: 115%; }
.cia-autor p { margin: 0; color: var(--gris); max-width: 70ch; }
.cia-autor a { color: var(--acero); font-weight: 700; }

/* Compra */
.cia-buy { display: grid; grid-template-columns: minmax(0, .9fr) minmax(320px, 1.1fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
.cia-buy-copy .h-xl { color: #fff; }
.cia-buy-list { margin: 26px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.cia-buy-list li { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 12px; color: rgba(225, 236, 243, .9); }
.cia-buy-list .ico { color: var(--senal); }
.cia-form { display: grid; gap: 16px; padding: clamp(22px, 3.5vw, 36px); border-radius: 24px; background: #fff; color: var(--tinta); box-shadow: var(--shadow-lg); }
.cia-form-price { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--linea); }
.cia-form-price b { font-size: 2.2rem; font-weight: 900; font-stretch: 118%; line-height: 1; }
.cia-form-price span { color: var(--gris); font-weight: 600; }
.cia-form .field select { width: 100%; padding: 15px 16px; border-radius: 12px; border: 1.5px solid rgba(10, 30, 44, .18); background: var(--papel); font-size: 1rem; }
.cia-consent { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 12px; align-items: start; padding: 14px 16px; border-radius: 14px; background: var(--papel); font-size: .92rem; line-height: 1.5; color: var(--tinta); }
.cia-consent input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--acero); }
.cia-consent a { color: var(--acero); font-weight: 700; }
.cia-form .btn { width: 100%; }
.cia-safe, .dark .cia-form .cia-safe { margin: 0; text-align: center; color: var(--gris); font-size: .88rem; }
.cia-has-access { display: grid; gap: 14px; padding: 28px; border-radius: 24px; background: #fff; color: var(--tinta); box-shadow: var(--shadow-lg); }
.cia-has-access h3 { margin: 0; font-size: 1.4rem; font-weight: 800; font-stretch: 115%; }
.dark .cia-has-access p { color: var(--gris); }

/* Barra fija en móvil */
.cia-sticky { position: fixed; left: 0; right: 0; bottom: 0; z-index: 800; display: none; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: rgba(10, 30, 44, .96); color: #fff; -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); box-shadow: 0 -10px 30px -16px rgba(0, 0, 0, .5); transform: translateY(110%); visibility: hidden; transition: transform .4s var(--ease-out), visibility 0s .4s; }
.cia-sticky.show { transform: none; visibility: visible; transition-delay: 0s; }
.cia-sticky b { font-size: 1.25rem; font-weight: 900; }
.cia-sticky small { display: block; font-size: .78rem; color: rgba(225, 236, 243, .75); font-weight: 600; }
.cia-sticky .btn { --bh: 46px; padding: 0 20px; }

/* ---------- Aula ---------- */
.page-aula .main { padding-top: var(--hd-h); }
.aula { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); padding: clamp(28px, 4vw, 48px) 0 clamp(56px, 7vw, 96px); align-items: start; }
.aula-aside { position: sticky; top: calc(var(--hd-h) + 20px); display: grid; gap: 16px; }
.aula-card { padding: 20px; border-radius: 20px; background: #fff; border: 1px solid var(--linea); box-shadow: var(--shadow-sm); }
.aula-title { margin: 0 0 4px; font-size: 1.05rem; font-weight: 800; font-stretch: 115%; line-height: 1.2; }
.aula-progress { display: grid; gap: 8px; margin-top: 12px; }
.aula-progress span { display: flex; justify-content: space-between; font-size: .85rem; font-weight: 700; color: var(--gris); }
.aula-bar { height: 8px; border-radius: 99px; background: var(--niebla); overflow: hidden; }
.aula-bar i { display: block; height: 100%; width: var(--p, 0%); background: var(--acero); border-radius: 99px; transition: width .6s var(--ease-out); }
.aula-index { margin: 14px 0 0; padding: 0; list-style: none; display: grid; gap: 4px; }
.aula-index a { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; align-items: center; padding: 8px 10px; border-radius: 10px; font-size: .92rem; font-weight: 600; color: var(--tinta); transition: background-color .2s; }
.aula-index a:hover { background: var(--papel); }
.aula-index a.is-active { background: var(--ria); color: #fff; }
.aula-index .n { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: var(--niebla); color: var(--acero); font-size: .76rem; font-weight: 800; }
.aula-index a.is-active .n { background: var(--senal); color: var(--tinta); }
.aula-index a.done .n { background: var(--acero); color: #fff; }
.aula-index a.done .n svg { width: 14px; height: 14px; }
.aula-links { display: grid; gap: 8px; }
.aula-links a { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: .92rem; color: var(--acero); }
.aula-links a:hover { color: var(--tinta); }
.aula-toggle { display: none; }

.aula-main { min-width: 0; }
.aula-crumb { display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 0 0 18px; font-size: .9rem; color: var(--gris); }
.aula-crumb a { color: var(--acero); font-weight: 600; }
.aula-head { margin-bottom: 26px; }
.aula-head .kicker { color: var(--acero); }
.aula-head h1 { margin: 0; font-size: clamp(1.8rem, 3.4vw, 2.8rem); font-weight: 800; font-stretch: 115%; line-height: 1.05; letter-spacing: -.01em; }
.aula-meta { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 12px 0 0; color: var(--gris); font-size: .92rem; font-weight: 600; }
.cia-obj { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 14px; align-items: start; padding: 18px 20px; border-radius: 16px; background: var(--ria); color: #fff; margin: 0 0 28px; }
.cia-obj b { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--senal); padding-top: 3px; }
.cia-obj p { margin: 0; font-size: 1.08rem; font-weight: 600; color: #fff; }
.aula-body { font-size: 1.05rem; line-height: 1.7; }
.aula-body > p { margin: 0 0 18px; }
.aula-body h3 { margin: 30px 0 12px; font-size: 1.3rem; font-weight: 800; font-stretch: 112%; line-height: 1.25; }
.aula-body ul, .aula-body ol { margin: 0 0 20px; padding-left: 22px; display: grid; gap: 8px; }
.aula-body li::marker { color: var(--acero); font-weight: 700; }
.cia-datos-l { display: grid; gap: 12px; margin: 0 0 22px; }
.cia-datos-l .cia-dato { grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 8px 20px; }
.cia-datos-l .cia-dato b { font-size: 1.7rem; min-width: 150px; }
.cia-datos-l .cia-dato small { grid-column: 2; }
.cia-nota { margin: 0 0 22px; padding: 18px 20px; border-radius: 16px; background: rgba(242, 194, 48, .16); border-left: 4px solid var(--senal); }
.cia-nota b { display: block; margin-bottom: 6px; font-weight: 800; }
.cia-nota p { margin: 0; }
.cia-ejercicio { margin: 26px 0 22px; padding: 22px 22px 20px; border-radius: 18px; background: #fff; border: 1.5px solid var(--acero); }
.cia-ejercicio > b { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 8px; font-weight: 800; color: var(--acero); }
.cia-ejercicio p { margin: 0 0 12px; }
.cia-plantilla { margin: 0 0 16px; border-radius: 16px; background: var(--ria); color: #fff; overflow: hidden; }
.cia-plantilla-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; background: rgba(255, 255, 255, .06); border-bottom: 1px solid rgba(255, 255, 255, .1); }
.cia-plantilla-head b { font-weight: 700; font-size: .95rem; }
.cia-plantilla-head b small { color: var(--senal); margin-right: 8px; }
.cia-copy { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 14px; border: 0; border-radius: 999px; background: var(--senal); color: var(--tinta); font-weight: 700; font-size: .85rem; cursor: pointer; transition: background-color .2s, transform .2s; }
.cia-copy:hover { background: var(--senal-2); }
.cia-copy:active { transform: scale(.97); }
.cia-copy.ok { background: #1F8A5B; color: #fff; }
.cia-plantilla pre { margin: 0; padding: 16px 18px 18px; white-space: pre-wrap; word-break: break-word; font: inherit; font-size: .98rem; line-height: 1.6; color: rgba(236, 243, 248, .95); }
.cia-plantilla pre mark { background: rgba(242, 194, 48, .22); color: #FFE08A; padding: 0 3px; border-radius: 4px; }
.cia-plantilla-nota { margin: 0; padding: 0 18px 14px; font-size: .88rem; color: rgba(225, 236, 243, .7); }
.cia-checklist { margin: 0 0 22px; padding: 22px; border-radius: 18px; background: #fff; border: 1px solid var(--linea); box-shadow: var(--shadow-sm); }
.cia-checklist-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 16px; margin-bottom: 14px; }
.cia-checklist-head b { font-size: 1.1rem; font-weight: 800; font-stretch: 112%; }
.cia-checklist-head .btn-sm { --bh: 38px; }
.cia-checklist ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.cia-checklist label { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 12px; align-items: start; padding: 10px 12px; border-radius: 12px; cursor: pointer; transition: background-color .2s; }
.cia-checklist label:hover { background: var(--papel); }
.cia-checklist input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--acero); }
.cia-checklist label.on { color: var(--gris); text-decoration: line-through; text-decoration-color: rgba(10, 30, 44, .3); }
.cia-checklist-count { font-size: .9rem; font-weight: 700; color: var(--acero); }
.cia-pasos { display: grid; gap: 10px; margin: 0 0 22px; counter-reset: paso; }
.cia-pasos > div { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; padding: 14px 16px; border-radius: 14px; background: #fff; border: 1px solid var(--linea); }
.cia-pasos > div::before { counter-increment: paso; content: counter(paso); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--ria); color: var(--senal); font-weight: 900; }
.cia-pasos b { display: block; font-weight: 800; }
.cia-pasos span { color: var(--gris); }
.cia-ejemplo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 0 0 10px; }
.cia-ejemplo > div { padding: 16px 18px; border-radius: 16px; }
.cia-ejemplo .antes { background: #FDECEA; color: #5B1A12; }
.cia-ejemplo .despues { background: #E3F4EA; color: #0F3D28; }
.cia-ejemplo b { display: block; margin-bottom: 6px; font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.cia-ejemplo p { margin: 0; font-size: .98rem; }
.cia-ejemplo-nota { margin: 0 0 22px; color: var(--gris); font-size: .95rem; }
.cia-errores { display: grid; gap: 10px; margin: 0 0 22px; }
.cia-errores > div { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 12px; padding: 14px 16px; border-radius: 14px; background: #fff; border: 1px solid var(--linea); }
.cia-errores .ico { color: #B42318; margin-top: 2px; }
.cia-errores b { display: block; font-weight: 800; }
.cia-errores span { color: var(--gris); }
.cia-plan { display: grid; gap: 10px; margin: 0 0 22px; }
.cia-plan > div { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 14px; align-items: start; padding: 14px 16px; border-radius: 14px; background: #fff; border: 1px solid var(--linea); }
.cia-plan b { display: inline-grid; place-items: center; padding: 8px 0; border-radius: 10px; background: var(--senal); color: var(--tinta); font-weight: 800; font-size: .9rem; text-align: center; }
.cia-aviso { margin: 0 0 22px; padding: 20px 22px; border-radius: 18px; background: #FFF6DA; border: 1.5px solid rgba(183, 121, 31, .45); }
.cia-aviso > b { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; color: #7A4F00; font-weight: 800; }
.cia-aviso ol { margin: 0; }
.cia-revision { margin: 30px 0 0; padding: 26px; border-radius: 20px; background: var(--ria); color: #fff; display: grid; gap: 12px; }
.cia-revision h3 { margin: 0; font-size: 1.4rem; font-weight: 800; font-stretch: 115%; }
.cia-revision p { margin: 0; color: rgba(225, 236, 243, .85); }
.cia-revision .btn { justify-self: start; }
.aula-foot { display: grid; gap: 18px; margin-top: 36px; padding-top: 26px; border-top: 1px solid var(--linea); }
.aula-nav { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
.aula-nav .prev, .aula-nav .next { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--acero); }
.aula-nav .prev:hover, .aula-nav .next:hover { color: var(--tinta); }
.aula-done { display: inline-flex; align-items: center; gap: 8px; }
.aula-done.is-done { background: #E3F4EA; color: #0F5132; box-shadow: none; }
.aula-help { margin: 0; padding: 14px 16px; border-radius: 12px; background: var(--papel); color: var(--gris); font-size: .92rem; }
.aula-help a { color: var(--acero); font-weight: 700; }
.aula-welcome { display: grid; gap: 22px; }
.aula-welcome .cia-obj { margin: 0; }
.aula-start { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.aula-start a { display: grid; gap: 6px; padding: 18px; border-radius: 16px; background: #fff; border: 1px solid var(--linea); transition: transform .3s var(--ease-out), box-shadow .3s; }
.aula-start a:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.aula-start b { font-weight: 800; }
.aula-start span { color: var(--gris); font-size: .92rem; }
.aula-final { display: grid; gap: 24px; }
.aula-final-hero { padding: clamp(28px, 4vw, 44px); border-radius: 24px; background: var(--ria); color: #fff; }
.aula-final-hero h1 { margin: 0 0 12px; font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; font-stretch: 118%; line-height: 1; }
.aula-final-hero p { margin: 0; color: rgba(225, 236, 243, .85); font-size: 1.1rem; max-width: 60ch; }
.aula-final-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.aula-final-stats span { padding: 8px 14px; border-radius: 999px; background: rgba(255, 255, 255, .1); font-weight: 700; font-size: .92rem; }

@media (max-width: 1100px) {
  .aula { grid-template-columns: 260px minmax(0, 1fr); }
}
@media (max-width: 960px) {
  .cia-hero-grid, .cia-buy, .cia-quien { grid-template-columns: 1fr; }
  .cia-datos, .cia-llevas { grid-template-columns: 1fr; }
  .cia-lecciones { grid-template-columns: 1fr; }
  .cia-meaning { grid-template-columns: 1fr; }
  .cia-preview { max-width: 520px; }
  .aula { grid-template-columns: 1fr; gap: 20px; }
  .aula-aside { position: static; }
  .aula-toggle { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; padding: 14px 16px; border: 0; border-radius: 14px; background: var(--ria); color: #fff; font-weight: 700; cursor: pointer; }
  .aula-toggle .ico { transition: transform .3s; }
  .aula-aside.open .aula-toggle .ico { transform: rotate(180deg); }
  .aula-aside > .aula-card { display: none; }
  .aula-aside.open > .aula-card { display: block; }
}
@media (max-width: 720px) {
  .cia-sticky { display: flex; }
  body.cia-venta .ft { padding-bottom: 90px; }
  .cia-ejemplo { grid-template-columns: 1fr; }
  .cia-datos-l .cia-dato { grid-template-columns: 1fr; }
  .cia-datos-l .cia-dato small { grid-column: 1; }
  .cia-autor { grid-template-columns: 1fr; }
  .cia-plan > div { grid-template-columns: 1fr; }
  .cia-plan b { justify-self: start; padding: 6px 12px; }
  .aula-nav { flex-direction: column; align-items: stretch; }
  .aula-nav .btn { width: 100%; }
}