/*
 * Páginas comerciales del sitio central (SEO fase 2): /test-prep-center-software,
 * /for/tutoring-centers, /features/*, /import/moodle, /alternatives/*, /about,
 * /security, /accessibility y sus versiones /es/. Se carga después de
 * landing.css y solo usa los tokens --u-* (tema claro/oscuro de la landing).
 * Prefijo .sp-*; no redefine clases de la landing.
 */
.sp-page { background: var(--u-bg); color: var(--u-text); }
.sp-page main { overflow-x: clip; }

/* --- Hero: texto a la izquierda; captura real o ficha a la derecha --- */
.sp-hero { position: relative; padding: clamp(36px, 6vw, 72px) 0 clamp(32px, 5vw, 56px); border-bottom: 1px solid var(--u-line); }
.sp-hero::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background:
        radial-gradient(60% 80% at 100% 0%, rgba(var(--acat-accent-rgb), .10), transparent 70%),
        linear-gradient(180deg, var(--u-surface) 0%, var(--u-bg) 100%);
}
.sp-hero > * { position: relative; }
.sp-hero-grid { display: grid; gap: clamp(28px, 5vw, 56px); align-items: center; }
@media (min-width: 960px) {
    .sp-hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
}
.sp-hero-copy { max-width: 640px; }

.sp-crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; padding: 0; list-style: none; font-size: 14px; color: var(--u-text-dim); }
.sp-crumbs li + li::before { content: '/'; margin-right: 6px; opacity: .6; }
.sp-crumbs a { color: inherit; text-decoration: underline; text-decoration-color: transparent; text-underline-offset: 3px; }
.sp-crumbs a:hover { color: var(--u-primary); text-decoration-color: currentColor; }

.sp-title {
    margin: 0 0 18px; font-size: clamp(2rem, 4.2vw, 3.05rem); font-weight: 800;
    line-height: 1.06; letter-spacing: -.035em; text-wrap: balance; color: var(--u-text);
}
.sp-lead { margin: 0 0 26px; font-size: clamp(1.05rem, 1.5vw, 1.2rem); line-height: 1.6; color: var(--u-text-dim); max-width: 60ch; text-wrap: pretty; }
.sp-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.sp-actions .u-btn { min-height: 48px; }
.sp-btn-secondary { border: 1px solid var(--u-line); background: var(--u-surface); color: var(--u-text); }
.sp-btn-secondary:hover { border-color: var(--u-primary); color: var(--u-primary); }
.sp-note { margin: 14px 0 0; font-size: 14px; color: var(--u-text-dim); }

/* Captura real del producto en un marco de navegador. */
.sp-shot { margin: 0; }
.sp-shot-frame {
    border-radius: 14px; overflow: hidden; background: var(--u-surface);
    border: 1px solid var(--u-line);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .6) inset, 0 30px 60px -28px rgba(16, 23, 42, .35), 0 12px 24px -16px rgba(16, 23, 42, .18);
}
.sp-shot-bar { display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--u-line); background: var(--u-bg); }
.sp-shot-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--u-line); }
.sp-shot img { display: block; width: 100%; height: auto; }
.sp-shot figcaption { margin-top: 10px; font-size: 13px; color: var(--u-text-dim); }

/* Ficha de datos (páginas sin captura: about, security, accessibility…). */
.sp-facts { border: 1px solid var(--u-line); border-radius: 14px; background: var(--u-surface); padding: 22px 24px; }
.sp-facts-title { margin: 0 0 10px; font-weight: 700; font-size: 15px; color: var(--u-text); }
.sp-facts dl { margin: 0; }
.sp-facts dl > div { display: grid; grid-template-columns: minmax(0, 10em) minmax(0, 1fr); gap: 12px; padding: 11px 0; border-top: 1px solid var(--u-line); }
.sp-facts dt { font-size: 14px; color: var(--u-text-dim); }
.sp-facts dd { margin: 0; font-size: 15px; font-weight: 600; color: var(--u-text); overflow-wrap: anywhere; }
@media (max-width: 480px) { .sp-facts dl > div { grid-template-columns: 1fr; gap: 2px; } }

/* --- Aviso fechado (p. ej. la página de Canvas Free for Teacher) --- */
.sp-notice {
    margin: clamp(24px, 4vw, 36px) 0 0; padding: 16px 20px; border-radius: 12px;
    border: 1px solid rgba(180, 83, 9, .35); background: rgba(251, 191, 36, .10); color: var(--u-text);
    font-size: 15px; line-height: 1.6;
}
.sp-notice p { margin: 0; }
.sp-notice p + p { margin-top: 6px; }
.sp-notice a { color: var(--u-primary); text-underline-offset: 3px; }

/* --- Cuerpo: índice fijo a la izquierda en escritorio --- */
.sp-body { padding-block: clamp(36px, 6vw, 72px) clamp(24px, 4vw, 40px); }
@media (min-width: 1024px) {
    .sp-body--toc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 56px; align-items: start; }
}
.sp-toc { display: none; }
@media (min-width: 1024px) {
    .sp-toc { display: block; position: sticky; top: calc(var(--u-topbar-h, 60px) + 24px); font-size: 14px; }
}
.sp-toc-title { margin: 0 0 10px; font-weight: 700; color: var(--u-text); }
.sp-toc ol { margin: 0; padding: 0; list-style: none; border-left: 2px solid var(--u-line); }
.sp-toc a { display: block; padding: 6px 0 6px 14px; margin-left: -2px; border-left: 2px solid transparent; color: var(--u-text-dim); text-decoration: none; line-height: 1.35; }
.sp-toc a:hover { color: var(--u-primary); border-left-color: var(--u-primary); }

.sp-content { max-width: 780px; min-width: 0; }
.sp-content p, .sp-content li { font-size: 17px; line-height: 1.7; color: var(--u-text); }
.sp-content a { color: var(--u-primary); text-underline-offset: 3px; }
.sp-content a:hover { color: var(--u-primary-strong); }
:root[data-u-theme="dark"] .sp-content a:hover { color: var(--acat-accent); }

/* Resumen citable: la respuesta corta, con la línea de margen de una hoja de examen. */
.sp-summary {
    position: relative; margin: 0 0 clamp(36px, 5vw, 52px); padding: 20px 24px 20px 30px;
    border-radius: 12px; background: var(--u-surface); border: 1px solid var(--u-line);
}
.sp-summary::before { content: ''; position: absolute; left: 14px; top: 16px; bottom: 16px; width: 3px; border-radius: 3px; background: var(--acat-accent); }
.sp-summary-title { margin: 0 0 6px; font-size: 15px; font-weight: 700; letter-spacing: 0; color: var(--u-text-dim); }
.sp-summary p { margin: 0; font-size: 18px; line-height: 1.65; }
.sp-summary p + p { margin-top: 10px; }

.sp-section { margin: 0 0 clamp(40px, 6vw, 64px); scroll-margin-top: calc(var(--u-topbar-h, 60px) + 20px); }
.sp-section > h2 { margin: 0 0 14px; font-size: clamp(1.55rem, 2.6vw, 2rem); font-weight: 800; line-height: 1.18; letter-spacing: -.025em; text-wrap: balance; color: var(--u-text); }
.sp-section > p { margin: 0 0 14px; max-width: 68ch; }

/* Funciones: rejilla de 2 columnas separada por líneas, sin tarjetas. */
.sp-items { display: grid; gap: 0 36px; margin-top: 10px; }
@media (min-width: 720px) { .sp-items { grid-template-columns: 1fr 1fr; } }
.sp-item { padding: 18px 0; border-top: 1px solid var(--u-line); }
.sp-item h3 { margin: 0 0 6px; font-size: 18px; font-weight: 700; line-height: 1.3; color: var(--u-text); }
.sp-item p { margin: 0; font-size: 16px; line-height: 1.65; color: var(--u-text-dim); }

.sp-list { margin: 6px 0 14px; padding-left: 1.2em; }
.sp-list li { margin: 6px 0; padding-left: 4px; }
.sp-list li::marker { color: var(--acat-accent); }

.sp-table-wrap { overflow-x: auto; margin: 10px 0 16px; border: 1px solid var(--u-line); border-radius: 12px; }
.sp-table-wrap:focus-visible { outline: 3px solid var(--u-primary); outline-offset: 2px; }
.sp-table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 520px; font-variant-numeric: tabular-nums; }
.sp-table th, .sp-table td { padding: 12px 14px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--u-line); line-height: 1.5; color: var(--u-text); }
.sp-table thead th { background: var(--u-surface); font-weight: 700; }
.sp-table tbody th { font-weight: 600; }
.sp-table tbody tr:last-child > * { border-bottom: 0; }

/* Pasos: secuencia real, numerada. */
.sp-steps-list { counter-reset: sp-step; margin: 8px 0 0; padding: 0; list-style: none; }
.sp-steps-list li { counter-increment: sp-step; position: relative; padding: 0 0 22px 60px; }
.sp-steps-list li::before {
    content: counter(sp-step); position: absolute; left: 0; top: -2px;
    width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
    font: 800 17px/1 var(--u-font-display); color: var(--u-primary); background: var(--u-primary-soft);
}
.sp-steps-list li:not(:last-child)::after { content: ''; position: absolute; left: 19px; top: 44px; bottom: 4px; width: 2px; background: var(--u-line); }
.sp-steps-list h3 { margin: 6px 0 4px; font-size: 18px; font-weight: 700; color: var(--u-text); }
.sp-steps-list p { margin: 0; font-size: 16px; color: var(--u-text-dim); }

/* FAQ */
.sp-faq-list { display: grid; gap: 10px; }
.sp-faq-list details { border: 1px solid var(--u-line); border-radius: 12px; background: var(--u-surface); }
.sp-faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; cursor: pointer; list-style: none; min-height: 44px; }
.sp-faq-list summary::-webkit-details-marker { display: none; }
.sp-faq-list summary h3 { margin: 0; font-size: 17px; font-weight: 700; line-height: 1.4; color: var(--u-text); }
.sp-faq-list summary::after { content: '+'; flex: none; font: 600 22px/1 var(--u-font-body); color: var(--u-primary); transition: transform .2s ease; }
.sp-faq-list details[open] summary::after { transform: rotate(45deg); }
.sp-faq-list summary:focus-visible { outline: 3px solid var(--u-primary); outline-offset: 2px; border-radius: 12px; }
.sp-faq-list details p { margin: 0; padding: 0 20px 18px; font-size: 16px; color: var(--u-text-dim); }

.sp-footnote { margin: 8px 0 0; padding-top: 16px; border-top: 1px solid var(--u-line); font-size: 14px !important; color: var(--u-text-dim) !important; }

/* Enlaces relacionados */
.sp-related { padding: clamp(32px, 5vw, 48px) 0; border-top: 1px solid var(--u-line); background: var(--u-surface); }
.sp-related-heading { margin: 0 0 20px; font-size: clamp(1.35rem, 2.2vw, 1.6rem); font-weight: 800; letter-spacing: -.02em; color: var(--u-text); }
.sp-related-grid { display: grid; gap: 28px; }
@media (min-width: 760px) { .sp-related-grid { grid-template-columns: 1fr 1fr; gap: 48px; } }
.sp-related-title { margin: 0 0 10px; font-size: 16px; font-weight: 700; color: var(--u-text-dim); }
.sp-related-list { margin: 0; padding: 0; list-style: none; }
.sp-related-list li { border-top: 1px solid var(--u-line); }
.sp-related-list a { display: block; padding: 12px 0; min-height: 44px; box-sizing: border-box; color: var(--u-text); font-weight: 600; text-decoration: none; }
.sp-related-list a:hover { color: var(--u-primary); text-decoration: underline; text-underline-offset: 3px; }


.sp-cta-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.sp-cta-link { color: #1D4ED8; font-weight: 600; text-decoration: underline; text-underline-offset: 4px; min-height: 44px; display: inline-flex; align-items: center; }

.sp-company { margin: 0; }
.sp-company > div { display: grid; grid-template-columns: minmax(0, 12em) minmax(0, 1fr); gap: 12px; padding: 10px 0; border-top: 1px solid var(--u-line); }
.sp-company dt { color: var(--u-text-dim); }
.sp-company dd { margin: 0; font-weight: 600; }

.sp-page a:focus-visible, .sp-page .u-btn:focus-visible { outline: 3px solid var(--u-primary); outline-offset: 3px; }

@media (max-width: 640px) {
    .sp-content p, .sp-content li { font-size: 16px; }
    .sp-summary p { font-size: 17px; }
    .sp-actions .u-btn { flex: 1 1 100%; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
    .sp-faq-list summary::after { transition: none; }
    html { scroll-behavior: auto; }
}

/* Enlace «Saltar al contenido» (visible al recibir el foco). */
.sp-skip { position: absolute; left: 16px; top: -100px; z-index: 1000; padding: 10px 16px; border-radius: 8px; background: var(--u-surface); color: var(--u-text); font-weight: 700; box-shadow: var(--u-shadow); }
.sp-skip:focus-visible { top: 12px; outline: 3px solid var(--u-primary); outline-offset: 2px; }
.sp-page main:focus { outline: none; }
.sp-page a, .sp-faq-list summary { touch-action: manipulation; }
.sp-content, .sp-item p, .sp-related-list a { overflow-wrap: break-word; }