/* Public website (aestudiarai.com): what it is, prices and the way in. Brand colours from the AEstudiar AI logo. */
.home{background:var(--cream)}
.home .icon{width:22px;height:22px;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.skip-link{position:absolute;top:-80px;left:16px;z-index:10;padding:10px 16px;border-radius:12px;background:var(--ink);color:#fff;font-weight:700}
.skip-link:focus{top:12px}
.kicker{margin-bottom:8px;font-family:var(--serif);font-style:italic;font-size:24px;line-height:1.1;color:var(--cobalt)}

.home-top{position:sticky;top:0;z-index:5;background:#f2ece1f2;border-bottom:2px solid var(--ink)}
.home-top-inner{display:flex;align-items:center;gap:12px 24px;max-width:1200px;margin:0 auto;padding:10px 32px}
.home-nav{display:flex;gap:4px;margin-left:auto}
.home-nav a{display:inline-flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:999px;font-weight:600;text-decoration:none}
.home-nav a:hover{background:#e3ebe9}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:12px 24px;border:2px solid var(--ink);border-radius:999px;font-weight:700;font-size:17px;text-decoration:none;cursor:pointer}
.btn .icon{width:20px;height:20px}
.btn-primary{background:var(--mint);color:var(--ink);box-shadow:4px 4px 0 var(--ink)}
.btn-primary:hover{background:#3fe0b3}
.btn-primary:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink)}
.btn-ghost{background:var(--paper);color:var(--ink)}
.btn-ghost:hover{background:#e3ebe9}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#163f6e}
.home-enter{min-height:44px;padding:8px 18px;font-size:16px;box-shadow:3px 3px 0 var(--ink)}

.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;max-width:1200px;margin:0 auto;padding:56px 32px 80px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border:2px solid var(--ink);border-radius:999px;background:var(--paper);font-weight:600;font-size:14px}
.hero-badge span{flex-shrink:0;width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand-blue),var(--brand-mint))}
.hero h1{margin-top:22px;font-size:clamp(46px,6.2vw,84px);font-weight:800;letter-spacing:-.05em;line-height:.95}
.hero h1 em{font-family:var(--serif);font-weight:400;letter-spacing:-.02em;color:var(--cobalt)}
.hero-lead{max-width:36em;margin-top:24px;font-size:20px;line-height:1.5;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-note{margin-top:18px;font-size:15px;color:var(--muted)}
.hero-visual{position:relative;display:flex;flex-direction:column;align-items:center}
.hero-glow{position:absolute;top:-10px;left:50%;width:min(420px,100%);aspect-ratio:1;transform:translateX(-50%);border-radius:50%;background:radial-gradient(circle,#4cefc066 0,#0b8fe826 48%,transparent 70%)}
.hero-logo{position:relative;z-index:1;width:min(300px,66%);height:auto;filter:drop-shadow(0 18px 28px #0b8fe833)}
.demo-chat{position:relative;z-index:2;width:100%;max-width:470px;margin-top:-28px;padding:22px;border:2px solid var(--ink);border-radius:28px;background:var(--paper);box-shadow:10px 10px 0 var(--ink)}
.demo-chat-head{display:flex;align-items:center;gap:12px;padding-bottom:14px;border-bottom:1.5px solid #dfe6e5}
.chat-avatar{flex-shrink:0;width:48px;height:48px;padding:4px;border:2px solid var(--ink);border-radius:14px;background:#f3ead5}
.demo-chat-head strong{display:block;font-size:17px}
.demo-chat-head small{display:block;font-size:14px;color:var(--muted)}
.bubble{max-width:88%;margin-top:14px;padding:12px 16px;border:2px solid var(--ink);font-size:17px;line-height:1.45}
.bubble-student{margin-left:auto;border-radius:20px 20px 6px 20px;background:#d6ecfd}
.bubble-tutor{border-radius:20px 20px 20px 6px;background:var(--cream)}
.bubble-choices{display:flex;gap:10px;margin-top:14px}
.bubble-choices span{flex:1;padding:10px;border:2px solid var(--ink);border-radius:14px;background:var(--paper);font-weight:700;text-align:center}
.bubble-choices span:first-child{background:var(--mint)}

.home-section{max-width:1200px;margin:0 auto;padding:72px 32px;scroll-margin-top:72px}
.section-head{max-width:760px;margin-bottom:36px}
.home-section h2,.home-cta h2{font-size:clamp(34px,4.4vw,56px);font-weight:800;letter-spacing:-.045em;line-height:1}
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:0;padding:0}
.steps li{padding:24px;border:2px solid var(--ink);border-radius:24px;background:var(--paper)}
.step-number{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--brand-blue),var(--brand-teal));color:#fff;font-weight:800;font-size:19px;text-shadow:0 1px 2px #0c2a4d66}
.steps h3,.feature h3{margin-top:18px;font-size:22px;font-weight:800;letter-spacing:-.02em}
.steps p,.feature p{margin-top:8px;font-size:16px;line-height:1.55;color:var(--muted)}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.feature{padding:26px;border:2px solid var(--ink);border-radius:24px;background:var(--paper)}
.feature-icon{display:grid;place-items:center;width:52px;height:52px;border:2px solid var(--ink);border-radius:16px;background:#d6ecfd}
.feature:nth-child(2) .feature-icon{background:#c9f5e7}
.feature:nth-child(3) .feature-icon{background:#d2f1f7}
.feature:nth-child(4) .feature-icon{background:var(--cobalt);color:#fff}
.feature:nth-child(5) .feature-icon{background:#ffe9a8}
.feature-companions{display:flex;gap:8px}
.feature-companion{width:52px;height:52px;padding:5px;border:2px solid var(--ink);border-radius:16px}
.feature-companion.companion-aventura{background:#6a4cff}
.feature-companion.companion-cuaderno{background:#f3ead5}
.feature-companion.companion-estudio{background:#0f1115}
.audience-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.audience{padding:28px;border:2px solid var(--ink);border-radius:28px}
.audience--student{background:#d6ecfd}
.audience--family{background:#c9f5e7}
.audience-label{font-family:var(--serif);font-style:italic;font-size:24px;line-height:1}
.audience h3{margin-top:8px;font-size:30px;font-weight:800;letter-spacing:-.03em;line-height:1.05}
.audience ul{list-style:none;display:grid;gap:10px;margin:22px 0 0;padding:0}
.audience li{display:flex;gap:10px;font-size:17px;line-height:1.4}

.privacy-band{background:var(--ink);color:#fff}
.privacy{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start}
.privacy .kicker{color:var(--mint)}
.privacy-head p:not(.kicker){margin-top:18px;font-size:18px;line-height:1.55;color:#cfdae6}
.privacy-list{list-style:none;display:grid;gap:12px;margin:0;padding:0}
.privacy-list li{display:flex;gap:14px;padding:18px 20px;border:2px solid #24476f;border-radius:20px;font-size:17px;line-height:1.5;color:#cfdae6}
.privacy-list strong{color:#fff}
.privacy-list .icon{color:var(--mint)}

.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.plan{position:relative;display:flex;flex-direction:column;padding:30px 28px;border:2px solid var(--ink);border-radius:28px;background:var(--paper)}
.plan--featured{background:linear-gradient(135deg,#0a5aa8,#0a7482);color:#fff;box-shadow:8px 8px 0 var(--ink)}
.plan-badge{position:absolute;top:-17px;left:26px;padding:5px 14px;border:2px solid var(--ink);border-radius:999px;background:var(--mint);color:var(--ink);font-weight:700;font-size:14px}
.plan h3{font-size:30px;font-weight:800;letter-spacing:-.03em}
.plan-for{margin-top:4px;font-size:16px;font-weight:600;color:var(--muted)}
.plan--featured .plan-for{color:#d8ecff}
.plan-price{display:flex;align-items:baseline;gap:4px;margin-top:22px}
.plan-price strong{font-size:54px;font-weight:800;letter-spacing:-.05em;line-height:1}
.plan-price span{font-size:17px;font-weight:600}
.plan ul{list-style:none;display:grid;gap:12px;margin:24px 0 0;padding:24px 0 0;border-top:1.5px solid #dfe6e5}
.plan--featured ul{border-color:#ffffff59}
.plan li{display:flex;gap:10px;font-size:16px;line-height:1.45}
.plan li .icon{width:20px;height:20px;margin-top:2px}
.pricing-note{margin-top:26px;font-size:17px}
.pricing-note a{font-weight:700;text-underline-offset:4px}

.faq-list{max-width:860px;border-top:2px solid var(--ink)}
.faq-list details{border-bottom:2px solid var(--ink)}
.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;padding:16px 0;font-size:21px;font-weight:700;letter-spacing:-.01em;list-style:none;cursor:pointer}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";display:grid;place-items:center;flex-shrink:0;width:36px;height:36px;border:2px solid var(--ink);border-radius:50%;font-size:22px;font-weight:600;line-height:1}
.faq-list details[open] summary::after{content:"−"}
.faq-list details p{max-width:70ch;padding-bottom:22px;font-size:17px;line-height:1.6;color:var(--muted)}
.install-row{padding-bottom:22px}
.install-row:has([hidden]:only-child){display:none}

.home-cta-wrap{max-width:1200px;margin:0 auto;padding:8px 32px 80px}
.home-cta{padding:48px 32px 56px;border:2px solid var(--ink);border-radius:32px;background:linear-gradient(135deg,#d6ecfd,#c9f5e7);text-align:center}
.cta-logo{display:block;width:72px;height:72px;margin:0 auto 14px}
.home-cta p{max-width:40ch;margin:14px auto 28px;font-size:19px}
.home-footer{border-top:2px solid var(--ink)}
.home-footer-inner{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;max-width:1200px;margin:0 auto;padding:22px 32px}
.home-footer p{margin-left:auto;font-size:15px;color:var(--muted)}
.footer-link{display:inline-flex;align-items:center;min-height:44px;font-weight:700;text-underline-offset:4px}
.home-footer-inner .legal-links{flex:1 1 100%;order:4;padding-top:6px;border-top:1px solid #d8cdb9}

@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}.btn{transition:background-color .15s ease}}
@media(max-width:1000px){
.hero{grid-template-columns:1fr;gap:40px;padding:40px 24px 60px}
.home-section{padding:56px 24px}
.steps,.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.audience-grid,.privacy,.plan-grid{grid-template-columns:1fr}
.privacy{gap:28px}
.plan-grid{max-width:560px;gap:28px}
.home-cta-wrap{padding:8px 24px 64px}
}
@media(max-width:760px){
.home-top-inner{padding:8px 16px}
.home-nav{display:none}
.home-enter{margin-left:auto}
.home .wordmark{font-size:23px}
.home .wordmark-mark{width:34px;height:34px}
.hero{padding:28px 16px 48px}
.hero h1{font-size:44px}
.hero-lead{font-size:18px}
.hero-actions .btn{flex:1 1 100%}
.hero-logo{width:200px}
.demo-chat{padding:16px;box-shadow:6px 6px 0 var(--ink)}
.bubble{font-size:16px}
.home-section{padding:44px 16px}
.section-head{margin-bottom:24px}
.kicker{font-size:21px}
.steps,.feature-grid{grid-template-columns:1fr}
.audience h3{font-size:26px}
.plan{padding:26px 22px}
.faq-list summary{font-size:18px}
.home-cta-wrap{padding:8px 16px 48px}
.home-cta{padding:36px 20px 40px}
.home-footer-inner{padding:18px 16px}
.home-footer p{order:3;width:100%;margin-left:0}
}

/* Los planes de la portada (30-09-2026): precio al mes, al año y el botón de empezar. */
.pricing-lead{max-width:70ch;margin:-8px 0 26px;font-size:18px;line-height:1.55;color:var(--muted)}
.plan-year{margin-top:6px;font-size:16px;font-weight:600;color:var(--muted)}
.plan--featured .plan-year{color:#d8ecff}
.plan-start{margin-top:18px;width:100%}
.plan ul{flex:1 1 auto}

/* Las páginas legales (30-09-2026): texto largo, cómodo de leer, con el aviso de borrador y los datos de la empresa. */
.legal{max-width:860px}
.legal h2{font-size:clamp(26px,3vw,34px);margin:38px 0 14px}
.legal h2:first-of-type{margin-top:26px}
.legal p,.legal li{font-size:17px;line-height:1.6}
.legal p{margin:0 0 14px;max-width:72ch}
.legal ul{margin:0 0 16px;padding-left:22px;max-width:72ch}
.legal li{margin-bottom:8px}
.legal a{font-weight:700;text-underline-offset:3px}
.legal code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:15px;background:#fff;border:2px solid var(--ink);border-radius:6px;padding:1px 6px}
.legal-draft{display:flex;align-items:flex-start;gap:10px;margin:0 0 28px;padding:16px 18px;background:#fff6d8;border:2px solid var(--ink);border-radius:14px;box-shadow:4px 4px 0 var(--ink);font-size:16px;line-height:1.5}
.legal-draft .icon{flex:0 0 auto;width:22px;height:22px;margin-top:2px}
.legal-data{list-style:none;padding-left:0}
.legal-table{width:100%;margin:0 0 18px;border-collapse:collapse;border:2px solid var(--ink);background:#fff;font-size:16px}
.legal-table th,.legal-table td{padding:10px 12px;border:1px solid var(--ink);text-align:left;vertical-align:top;line-height:1.45}
.legal-table th{background:#f0e6d2;font-weight:800}
.legal-updated{margin-top:34px;font-size:15px;color:var(--muted)}
@media(max-width:700px){
.legal-table{display:block;overflow-x:auto}
.legal h2{font-size:24px;margin-top:30px}
}