/**
 * Cursos AB — landing (home).
 * Sistema de diseño: tokens + tipografía fluida + secciones.
 * Mobile-first; sin archivo de breakpoints aparte (clamp() + grid fluido).
 *
 * @package Cursos_AB_Landing
 */

/* ==========================================================================
   1. Tokens
   ========================================================================== */
:root {
    --ink: #1b1f2a;
    --ink-soft: #3a4051;
    --parchment: #f8f3e8;
    --parchment-deep: #efe6d3;
    --paper: #fffdf8;
    --wine: #6b1b2c;
    --wine-deep: #45111c;
    --brass: #b98a2e;
    --brass-soft: #d8c08c;
    --indigo: #3d3856;
    --indigo-deep: #2b2740;

    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: Inter, system-ui, -apple-system, sans-serif;
    /* Alias usados por checkout/payment/member-nav (mismo par tipográfico) */
    --font-serif: var(--font-display);
    --font-sans: var(--font-body);

    /* Alias de la paleta antigua (--ab-*) para que checkout/payment/member-nav
       hereden los tokens nuevos sin reescribir cada declaración. */
    --ab-primary: var(--wine);
    --ab-burgundy: var(--wine);
    --ab-secondary: var(--ink);
    --ab-text: var(--ink);
    --ab-text-muted: var(--ink-soft);
    --ab-white: var(--paper);
    --ab-cream-panel: var(--parchment);

    --step-title: clamp(1.9rem, 1.5rem + 1.8vw, 3.1rem);
    --step-hero: clamp(2.4rem, 1.7rem + 3.2vw, 5rem);
    --step-lead: clamp(1.05rem, 0.95rem + 0.4vw, 1.3rem);

    --section-pad: clamp(3.5rem, 3rem + 2.5vw, 7rem);
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --shadow-card: 0 10px 24px -14px rgba(27, 31, 42, 0.28);
    --shadow-image: 0 4px 14px -8px rgba(27, 31, 42, 0.22);
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   2. Base
   ========================================================================== */
.site-main {
    background: var(--parchment);
    color: var(--ink);
    font-family: var(--font-body);
    overflow-x: clip;
}

.site-main .container {
    max-width: 74rem;
    padding-inline: clamp(1.25rem, 4vw, 2rem);
}

.eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--wine);
    margin-bottom: 0.75rem;
}

.text-center .eyebrow,
p.eyebrow.text-center {
    display: block;
    text-align: center;
}

.section-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--step-title);
    line-height: 1.15;
    color: var(--ink);
    margin-bottom: clamp(2rem, 1.6rem + 1.5vw, 3.5rem);
    max-width: 42ch;
}

.section-title.text-center {
    margin-inline: auto;
}

.visually-hidden {
    position: absolute !important;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Pentagrama como separador de sección: recurso de firma, no decoración suelta */
.site-main section + section {
    position: relative;
}

.site-main section + section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(720px, 86%);
    height: 1px;
    background-image: repeating-linear-gradient(
        to bottom,
        var(--brass-soft) 0,
        var(--brass-soft) 1px,
        transparent 1px,
        transparent 7px
    );
    background-size: 100% 28px;
    background-repeat: repeat-x;
    background-position: top;
    opacity: 0.5;
}

/* ==========================================================================
   3. Botones
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    padding: 0.9rem 1.9rem;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background-color 0.25s var(--ease);
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-2px);
}

.btn:focus-visible {
    outline: 2px solid var(--brass);
    outline-offset: 3px;
}

.btn--wine {
    background: linear-gradient(180deg, var(--wine) 0%, var(--wine-deep) 100%);
    color: var(--paper);
    box-shadow: 0 14px 30px -14px rgba(107, 27, 44, 0.65);
}

.btn--wine:hover,
.btn--wine:focus-visible {
    box-shadow: 0 18px 36px -12px rgba(107, 27, 44, 0.75);
    color: var(--paper);
}

.btn--block {
    display: flex;
    width: 100%;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--wine-deep);
    background: var(--paper);
    border: 1px solid var(--brass-soft);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
}

/* ==========================================================================
   4. Reveal on scroll — progressive enhancement
   Sin JS o con prefers-reduced-motion: el contenido es visible desde el inicio.
   ========================================================================== */
.js-ready [data-reveal],
.js-ready [data-hero-reveal] {
    opacity: 0;
    transform: translateY(24px);
}

.js-ready [data-reveal].is-revealed,
.js-ready [data-hero-reveal].is-revealed {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .js-ready [data-reveal],
    .js-ready [data-hero-reveal] {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ==========================================================================
   5. Hero
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--paper);
    overflow: hidden;
    isolation: isolate;
}

.hero__media {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero__photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.85) brightness(0.7);
}

.hero__scrim {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(120% 90% at 50% 20%, rgba(69, 17, 28, 0.35), transparent 60%),
        linear-gradient(180deg, rgba(27, 31, 42, 0.78) 0%, rgba(61, 18, 27, 0.82) 55%, rgba(27, 31, 42, 0.92) 100%);
}

.hero__staff {
    position: absolute;
    left: 50%;
    bottom: 12%;
    transform: translateX(-50%);
    width: min(640px, 90%);
    height: auto;
    opacity: 0.85;
}

.hero__staff-lines line {
    stroke: var(--brass-soft);
    stroke-width: 1;
    opacity: 0.55;
}

.hero__staff-note-path {
    fill: none;
    stroke: var(--brass);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.hero__container {
    position: relative;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-block: clamp(6rem, 5rem + 4vw, 8rem);
}

.hero__eyebrow {
    color: var(--brass-soft);
    letter-spacing: 0.2em;
}

.hero__title {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.08;
    margin: 0.5rem 0 1.25rem;
}

.hero__title-line {
    display: block;
    font-size: var(--step-hero);
}

.hero__title-line--accent {
    color: var(--brass-soft);
    font-style: italic;
}

.hero__subtitle {
    font-size: var(--step-lead);
    letter-spacing: 0.04em;
    color: rgba(248, 243, 232, 0.85);
    max-width: 34ch;
    margin-bottom: 2.25rem;
}

.hero__scroll-cue {
    position: absolute;
    bottom: clamp(1.5rem, 4vh, 2.5rem);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    width: 2rem;
    height: 2.75rem;
    border: 1.5px solid rgba(248, 243, 232, 0.5);
    border-radius: 999px;
    justify-content: center;
    padding-top: 0.5rem;
}

.hero__scroll-cue-line {
    width: 2px;
    height: 0.6rem;
    border-radius: 999px;
    background: var(--brass-soft);
    animation: hero-scroll-cue 1.8s ease-in-out infinite;
}

@keyframes hero-scroll-cue {
    0% { opacity: 0; transform: translateY(-2px); }
    40% { opacity: 1; }
    100% { opacity: 0; transform: translateY(10px); }
}

@media (prefers-reduced-motion: reduce) {
    .hero__scroll-cue-line { animation: none; opacity: 1; }
}

/* ==========================================================================
   6. Showcase (tablet + cuadernos)
   ========================================================================== */
.showcase {
    padding-block: var(--section-pad);
}

.showcase__grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: clamp(1.5rem, 3vw, 2.5rem);
    align-items: center;
}

.showcase__device {
    grid-column: span 12;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.showcase__tablet {
    position: relative;
    width: min(420px, 100%);
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--ink);
    box-shadow: var(--shadow-image);
}

.showcase__tablet-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.showcase__tablet-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(27, 31, 42, 0.35);
    border: 0;
    cursor: pointer;
}

.showcase__tablet-play-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 999px;
    background: var(--paper);
    display: block;
    position: relative;
}

.showcase__tablet-play-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    border-style: solid;
    border-width: 0.6rem 0 0.6rem 1rem;
    border-color: transparent transparent transparent var(--wine);
}

.showcase__lead {
    grid-column: span 12;
    text-align: center;
}

.showcase__lead-text {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 1.1rem + 1vw, 1.9rem);
    font-style: italic;
    color: var(--ink-soft);
    max-width: 30ch;
    margin-inline: auto;
}

.showcase__notebooks {
    grid-column: span 12;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.showcase__notebook {
    position: relative;
    max-width: 220px;
}

.showcase__notebook img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-image);
}

.showcase__notebook--preview {
    margin-top: 2rem;
}

.showcase__badge {
    position: relative;
}

.showcase__badge--preview {
    position: absolute;
    bottom: -0.75rem;
    right: -0.5rem;
}

.showcase__cta-line {
    text-align: center;
    font-size: var(--step-lead);
    color: var(--ink-soft);
    margin-top: clamp(2rem, 1.5rem + 2vw, 3rem);
}

@media (min-width: 992px) {
    .showcase__device { grid-column: span 4; }
    .showcase__lead { grid-column: span 4; text-align: left; }
    .showcase__lead-text { margin-inline: 0; }
    .showcase__notebooks { grid-column: span 4; justify-content: flex-end; }
}

/* ==========================================================================
   7. Multimedia
   ========================================================================== */
.multimedia {
    padding-block: var(--section-pad);
}

.multimedia__card {
    background: var(--paper);
    border: 1px solid rgba(27, 31, 42, 0.08);
    border-radius: var(--radius-lg);
    padding: clamp(1.75rem, 1.4rem + 1.8vw, 3rem);
    display: grid;
    gap: clamp(2rem, 3vw, 3.5rem);
    grid-template-columns: 1fr;
    align-items: center;
}

.multimedia__books {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 0 8% 2.5rem 0;
}

.multimedia__book {
    display: block;
    width: 68%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-image);
}

.multimedia__book--offset {
    position: absolute;
    width: 46%;
    height: auto;
    bottom: 0;
    right: 0;
    border: 4px solid var(--paper);
    box-shadow: var(--shadow-image);
}

.multimedia__lead {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.2rem);
    font-weight: 600;
    text-align: center;
    color: var(--wine-deep);
}

@media (min-width: 992px) {
    .multimedia__card { grid-template-columns: 1.1fr 0.9fr; }
    .multimedia__lead { text-align: left; }
}

/* ==========================================================================
   8. Pillars
   ========================================================================== */
.pillars {
    padding-block: var(--section-pad);
    background: var(--parchment-deep);
}

.pillars__strip {
    display: flex;
    gap: 1.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 0.5rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.pillars__strip::-webkit-scrollbar { display: none; }

.pillars__item {
    scroll-snap-align: center;
    flex: 0 0 min(80%, 300px);
    margin: 0;
    text-align: center;
    background: var(--paper);
    border: 1px solid rgba(27, 31, 42, 0.08);
    border-radius: var(--radius-lg);
    padding: clamp(2rem, 1.7rem + 1.5vw, 2.75rem) 1.5rem;
}

.pillars__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 999px;
    background: var(--parchment-deep);
    color: var(--wine);
    margin-bottom: 1.25rem;
}

.pillars__icon svg {
    width: 2.25rem;
    height: 2.25rem;
}

.pillars__item figcaption {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 600;
    font-size: 1.3rem;
    color: var(--wine);
}

.pillars__desc {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.5;
}

@media (min-width: 768px) {
    .pillars__strip {
        overflow: visible;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }
    .pillars__item { flex: none; }
}

/* ==========================================================================
   9. Writing
   ========================================================================== */
.writing {
    padding-block: var(--section-pad);
}

.writing__frame {
    max-width: 800px;
    margin-inline: auto;
    background: var(--paper);
    border: 1px solid rgba(27, 31, 42, 0.08);
    border-radius: var(--radius-lg);
    padding: clamp(1.5rem, 1.2rem + 1.5vw, 3rem) clamp(1rem, 0.5rem + 2vw, 2.5rem);
}

.writing__staff {
    width: 100%;
    height: auto;
    display: block;
    overflow: visible;
}

.writing__staff-lines line {
    stroke: var(--brass-soft);
    stroke-width: 1.5;
}

.writing__clef {
    font-family: var(--font-display);
    font-size: 130px;
    fill: var(--wine);
}

.writing__notes circle {
    fill: var(--ink);
}

.writing__stem {
    stroke: var(--ink);
    stroke-width: 2;
}

.writing__slur {
    stroke: var(--brass);
    stroke-width: 2;
    opacity: 0.8;
}

.writing__caption {
    text-align: center;
    color: var(--ink-soft);
    font-size: 0.95rem;
    margin: 1.5rem 0 0;
}

/* ==========================================================================
   10. Audience (foto + mensaje en una sola tarjeta)
   ========================================================================== */
.audience {
    padding-block: var(--section-pad);
    background: var(--parchment-deep);
}

.audience__grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 1fr;
    margin: 0;
}

.audience__card {
    background: var(--paper);
    border: 1px solid rgba(27, 31, 42, 0.08);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-image);
    overflow: hidden;
    margin: 0;
}

.audience__photo {
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.audience__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    /* Las fotos originales traen un halo/sombra pintado en el borde: se recorta con un ligero zoom. */
    transform: scale(1.08);
}

.audience__card figcaption {
    padding: 1.5rem 1.25rem;
    text-align: center;
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--wine-deep);
    line-height: 1.35;
}

@media (min-width: 768px) {
    .audience__grid { grid-template-columns: repeat(3, 1fr); }
}

/* ==========================================================================
   11. Story (taglines + videos)
   ========================================================================== */
.story {
    padding-block: var(--section-pad);
}

.story__taglines {
    text-align: center;
    display: grid;
    gap: 1.5rem;
    max-width: 46rem;
    margin-inline: auto;
    margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem);
}

.story__tagline {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 1.1rem + 1.5vw, 2.1rem);
    color: var(--ink-soft);
    margin: 0;
}

.story__tagline em {
    font-style: italic;
    color: var(--wine);
    font-weight: 600;
}

.story__video {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-image);
    margin-bottom: clamp(2rem, 1.6rem + 2vw, 3.5rem);
}

.story__video-el {
    width: 100%;
    display: block;
    max-height: 480px;
    object-fit: cover;
}

.story__device-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.story__phone {
    width: min(220px, 60vw);
    border-radius: 1.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-image);
    aspect-ratio: 9 / 16;
}

.story__phone-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.story__portrait-img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-image);
    max-width: 280px;
    width: 100%;
    height: auto;
}

/* ==========================================================================
   12. Testimonials (Swiper)
   ========================================================================== */
.testimonials {
    padding-block: var(--section-pad);
    background: var(--indigo);
    color: var(--paper);
}

.testimonials .eyebrow { color: var(--brass-soft); }
.testimonials .section-title { color: var(--paper); }

.testimonials__swiper {
    max-width: 46rem;
    margin-inline: auto;
    padding-bottom: 3rem;
}

.testimonial-card {
    background: var(--paper);
    color: var(--ink);
    border-radius: var(--radius-lg);
    padding: clamp(2rem, 1.6rem + 2vw, 3rem);
    text-align: center;
    box-shadow: var(--shadow-card);
}

.testimonial-card__photo {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 999px;
    object-fit: cover;
    margin-bottom: 1.25rem;
    border: 3px solid var(--brass-soft);
}

.testimonial-card__quote {
    margin: 0 0 1.25rem;
}

.testimonial-card__quote p {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.15rem, 1rem + 0.6vw, 1.4rem);
    line-height: 1.5;
    color: var(--ink-soft);
}

.testimonial-card__meta cite {
    display: block;
    font-style: normal;
    font-weight: 700;
    color: var(--wine);
}

.testimonial-card__meta span {
    font-size: 0.85rem;
    color: var(--ink-soft);
}

.testimonials .swiper-pagination-bullet {
    background: var(--paper);
    opacity: 0.5;
}

.testimonials .swiper-pagination-bullet-active {
    opacity: 1;
    background: var(--brass);
}

/* ==========================================================================
   13. Notebooks (mosaic)
   ========================================================================== */
.notebooks {
    padding-block: var(--section-pad);
}

.notebooks__mosaic {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    max-width: 640px;
    margin-inline: auto;
}

.notebooks__cell img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-image);
    display: block;
}

.notebooks__cell--wide {
    grid-column: span 2;
}

.notebooks__cell--text {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1.5rem 1rem 0.5rem;
}

.notebooks__cell--text p {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 600;
    font-size: clamp(1.4rem, 1.2rem + 1vw, 1.9rem);
    color: var(--wine);
    max-width: 32ch;
    margin: 0;
}

/* ==========================================================================
   14. Pricing
   ========================================================================== */
.pricing {
    padding-block: var(--section-pad);
}

.pricing__band {
    background: var(--paper);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: clamp(1.75rem, 1.4rem + 2vw, 3.5rem);
}

.pricing__layout {
    display: grid;
    gap: clamp(2rem, 1.6rem + 2vw, 3.5rem);
    grid-template-columns: 1fr;
}

.pricing__secure-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--wine);
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.pricing__trust-lead {
    color: var(--ink-soft);
    margin-bottom: 1.25rem;
}

.pricing__trust-points {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    display: grid;
    gap: 0.6rem;
}

.pricing__trust-points li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--ink-soft);
}

.pricing__trust-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 999px;
    background: var(--brass);
}

.pricing__brands {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.pricing__panel {
    background: var(--parchment-deep);
    border-radius: var(--radius-md);
    padding: clamp(1.5rem, 1.3rem + 1vw, 2.25rem);
}

.pricing__price-row {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.pricing__price {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2rem, 1.6rem + 1.6vw, 2.75rem);
    color: var(--wine-deep);
}

.pricing__price-note {
    font-size: 0.85rem;
    color: var(--ink-soft);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.pricing__cta-copy {
    color: var(--ink-soft);
    margin-bottom: 1.5rem;
}

.pricing__processor-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--ink-soft);
    margin: 1rem 0 0;
}

@media (min-width: 992px) {
    .pricing__layout { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
}

/* ==========================================================================
   15. FAQ
   ========================================================================== */
.faq {
    padding-block: var(--section-pad);
    background: var(--parchment-deep);
}

.faq__list {
    max-width: 46rem;
    margin-inline: auto;
}

.faq-item {
    background: var(--paper);
    border: none;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-card);
    margin-bottom: 0.85rem;
    overflow: hidden;
}

.faq-item__button {
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--ink);
    background: var(--paper);
    padding: 1.1rem 1.4rem;
}

.faq-item__button:not(.collapsed) {
    color: var(--wine);
    background: var(--paper);
    box-shadow: none;
}

.faq-item__button:focus {
    box-shadow: 0 0 0 3px rgba(185, 138, 46, 0.35);
}

.faq-item__button::after {
    filter: sepia(1) saturate(3) hue-rotate(300deg);
}

.faq-item__body {
    color: var(--ink-soft);
    padding: 0 1.4rem 1.25rem;
    line-height: 1.65;
}

/* ==========================================================================
   16. Botón volver arriba
   ========================================================================== */
.scroll-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: var(--wine);
    color: var(--paper);
    box-shadow: var(--shadow-card);
    cursor: pointer;
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), background-color 0.2s ease;
}

.scroll-to-top svg {
    width: 1.25rem;
    height: 1.25rem;
}

.scroll-to-top.is-visible {
    opacity: 1;
    transform: none;
    pointer-events: auto;
}

.scroll-to-top:hover,
.scroll-to-top:focus-visible {
    background: var(--wine-deep);
}

.scroll-to-top:focus-visible {
    outline: 2px solid var(--brass);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .scroll-to-top {
        transition: opacity 0.01ms;
    }
}