/* ═══════════════════════════════════════════════════════
   ACADEMIA PAGE STYLES  (mobile-first)
   AcademIA — la universidad de tu empresa, cursos SCORM con magIA
   ═══════════════════════════════════════════════════════ */

/* ══════════════════════════════════════════════════════════
   1. HERO — Full-viewport immersive dark
   ══════════════════════════════════════════════════════════ */

.aca-hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    background: var(--bg-primary);
    overflow: hidden;
    padding-top: var(--nav-height, 72px);
}

[data-theme="dark"] .aca-hero {
    background: #050510;
}

.aca-hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.aca-hero__particles {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

[data-theme="light"] .aca-hero__particles {
    opacity: 0.5;
}

.aca-hero__glow {
    position: absolute;
    border-radius: var(--radius-full);
    pointer-events: none;
    will-change: transform;
}

.aca-hero__glow--a {
    width: 65vw;
    height: 65vw;
    top: -15%;
    left: -18%;
    background: radial-gradient(circle, rgba(206, 50, 255, 0.2) 0%, transparent 68%);
    animation: sof-glow-drift 18s var(--ease-in-out) infinite;
}

.aca-hero__glow--b {
    width: 55vw;
    height: 55vw;
    bottom: -20%;
    right: -12%;
    background: radial-gradient(circle, rgba(255, 62, 137, 0.14) 0%, transparent 68%);
    animation: sof-glow-drift 24s var(--ease-in-out) 6s infinite reverse;
}

.aca-hero__glow--c {
    width: 40vw;
    height: 40vw;
    top: 40%;
    left: 50%;
    background: radial-gradient(circle, rgba(81, 112, 255, 0.09) 0%, transparent 68%);
    animation: sof-glow-drift 20s var(--ease-in-out) 10s infinite;
}

.aca-hero__container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    min-height: calc(100dvh - var(--nav-height, 72px));
    padding-bottom: var(--space-8);
}

.aca-hero__breadcrumb {
    padding-top: var(--space-6);
}

.aca-hero__body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--space-6);
    padding-block: var(--space-10);
    position: relative;
}

/* Halo que protege la legibilidad del texto sobre las partículas */
.aca-hero__body::before {
    content: '';
    position: absolute;
    inset: -6% -14%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(ellipse 46% 40% at center,
        rgba(255, 255, 255, 0.55) 0%,
        rgba(255, 255, 255, 0.22) 40%,
        transparent 68%);
}

[data-theme="dark"] .aca-hero__body::before {
    background: radial-gradient(ellipse 46% 40% at center,
        rgba(5, 5, 16, 0.55) 0%,
        rgba(5, 5, 16, 0.25) 40%,
        transparent 68%);
}

.aca-hero__brand {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin: 0;
    animation: sof-fade-up 0.9s var(--ease-smooth) both;
}

[data-theme="dark"] .aca-hero__brand {
    color: rgba(255, 255, 255, 0.92);
}

.aca-hero__title {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
}

.aca-hero__line {
    display: block;
    font-size: clamp(2.8rem, 12vw, 8.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
    padding-block: 0.06em;
    color: var(--text-primary);
    will-change: transform, opacity;
    animation: sof-line-enter 0.9s var(--ease-smooth) both;
}

.aca-hero__line:nth-child(2) { animation-delay: 0.12s; }
.aca-hero__line:nth-child(3) { animation-delay: 0.24s; }

.aca-hero__line--dim {
    color: var(--text-tertiary);
}

[data-theme="dark"] .aca-hero__line {
    color: rgba(255, 255, 255, 0.92);
}

[data-theme="dark"] .aca-hero__line--dim {
    color: rgba(255, 255, 255, 0.4);
}

.aca-hero__line--gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 40px rgba(206, 50, 255, 0.35));
}

.aca-hero__sub {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    max-width: 46ch;
    margin: 0 auto;
    animation: sof-fade-up 0.9s var(--ease-smooth) 0.85s both;
}

.aca-hero__sub em {
    color: var(--text-primary);
    font-style: normal;
}

.aca-hero__strip {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex-wrap: wrap;
    justify-content: center;
    animation: sof-fade-up 0.9s var(--ease-smooth) 0.95s both;
}

.aca-hero__strip-item {
    display: flex;
    align-items: baseline;
    gap: var(--space-2);
}

.aca-hero__strip-item sup {
    font-size: 0.5em;
    font-weight: var(--fw-bold);
    color: var(--text-tertiary);
    vertical-align: super;
}

.aca-hero__strip-num {
    font-size: var(--text-2xl);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
}

.aca-hero__strip-slash {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-tertiary);
    letter-spacing: -0.02em;
}

.aca-hero__strip-label {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
}

.aca-hero__strip-sep {
    width: 1px;
    height: 28px;
    background: var(--border-default);
    flex-shrink: 0;
}

.aca-hero__cue {
    display: flex;
    justify-content: center;
    padding-bottom: var(--space-6);
    animation: sof-fade-up 0.9s var(--ease-smooth) 1.05s both;
}

.aca-hero__cue-line {
    display: block;
    width: 2px;
    height: 72px;
    background: var(--gradient-text);
    border-radius: 2px;
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0.25));
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0.25));
    animation: sof-scroll-cue 2s var(--ease-in-out) infinite;
}


/* ══════════════════════════════════════════════════════════
   2. STATEMENT — Word-by-word scrub reveal (always dark)
   ══════════════════════════════════════════════════════════ */

.aca-statement {
    padding: 0;
    overflow: visible;
}

.aca-statement__bleed {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    background: #060610;
    --text-primary: rgba(250, 250, 250, 0.95);
    --text-secondary: rgba(250, 250, 250, 0.55);
    --text-tertiary: rgba(250, 250, 250, 0.32);
    --border-default: rgba(255, 255, 255, 0.08);
    padding-block: var(--space-20);
    overflow: clip;
    overflow-clip-margin: 1rem;
}

.aca-statement__bleed::before,
.aca-statement__bleed::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 3rem;
    z-index: 2;
    pointer-events: none;
}

.aca-statement__bleed::before {
    top: 0;
    background: linear-gradient(to bottom, var(--bg-primary), transparent);
}

.aca-statement__bleed::after {
    bottom: 0;
    background: linear-gradient(to top, var(--bg-primary), transparent);
}

[data-theme="light"] .aca-statement__bleed::before,
[data-theme="light"] .aca-statement__bleed::after {
    display: none;
}

.aca-statement__atmosphere {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 80% 30%, rgba(206, 50, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 15% 70%, rgba(255, 62, 137, 0.07) 0%, transparent 50%);
}

.aca-statement__bleed > .container {
    position: relative;
    z-index: 1;
}

.aca-statement__body {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-12);
}

.aca-statement__eyebrow {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(250, 250, 250, 0.4);
}

.aca-statement__eyebrow::before,
.aca-statement__eyebrow::after {
    content: '';
    flex: 1;
    max-width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18));
}

.aca-statement__eyebrow::after {
    background: linear-gradient(270deg, transparent, rgba(255, 255, 255, 0.18));
}

.aca-statement__quote {
    font-size: clamp(2.6rem, 8.5vw, 7.5rem);
    font-weight: 900;
    letter-spacing: -0.045em;
    line-height: 1.08;
    padding-bottom: 0.2em;
    color: rgba(250, 250, 250, 0.9);
    margin: 0;
    text-align: center;
}

.aca-word {
    display: inline-block;
    opacity: 0.08;
    will-change: opacity;
    padding-bottom: 0.18em;
    margin-bottom: -0.18em;
}

.aca-statement__quote span:last-child {
    padding-bottom: 0.18em;
}

.aca-word--accent {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 32px rgba(206, 50, 255, 0));
    transition: filter var(--duration-slow) var(--ease-smooth);
}

.aca-statement__pillars {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
    border-top: 1px solid var(--border-default);
}

.aca-statement__pillar {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-6) 0;
    border-bottom: 1px solid var(--border-default);
}

.aca-statement__pillar-num {
    font-size: clamp(1.6rem, 3.2vw, 2.6rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    padding-bottom: 0.08em;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.aca-statement__pillar strong {
    font-size: var(--text-base);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    letter-spacing: var(--tracking-tight);
}

.aca-statement__pillar span {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.aca-statement__pillar-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}


/* ══════════════════════════════════════════════════════════
   4. CURSOS — Rail de slats expandibles (diseño /eye Glymdo)
   ══════════════════════════════════════════════════════════ */

.aca-slats {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    background: #060610;
    color: #fff;
    /* Siempre oscura, en ambos temas: forzamos los tokens claros para que
       badges, iconos y textos heredados se pinten blancos siempre */
    --text-primary: rgba(250, 250, 250, 0.95);
    --text-secondary: rgba(250, 250, 250, 0.55);
    --text-tertiary: rgba(250, 250, 250, 0.32);
    --border-default: rgba(255, 255, 255, 0.08);
    /* Liquid Glass afinado para superficie oscura, también en tema claro */
    --glass-reflex-light: 0.3;
    --glass-reflex-dark: 2;
    padding: clamp(64px, 9vw, 120px) 0 clamp(48px, 7vw, 96px);
    overflow: hidden;
}

.aca-slats__header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    max-width: 860px;
    margin: 0 auto clamp(32px, 5vw, 56px);
    padding: 0 24px;
    text-align: center;
}

.aca-slats__title {
    margin: 0;
    font-size: clamp(2.3rem, 4.6vw, 3.6rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.05;
    color: #fff;
}

.aca-slats__subtitle {
    margin: 0;
    max-width: 640px;
    font-size: clamp(0.95rem, 1.4vw, 1.1rem);
    color: rgba(255, 255, 255, 0.62);
    line-height: 1.6;
}

.aca-slats__rail {
    display: flex;
    align-items: stretch;
    height: clamp(500px, 74vh, 700px);
    padding: 0 clamp(16px, 4vw, 48px);
    gap: 12px;
    scroll-padding-inline: clamp(16px, 4vw, 48px);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.aca-slats__rail::-webkit-scrollbar { display: none; }

.aca-slat {
    position: relative;
    flex: 0 0 clamp(300px, 92vw, 460px);
    scroll-snap-align: center;
    scroll-snap-stop: always;
    display: flex;
    align-items: stretch;
    padding: 18px 16px;
    background: #0b0b14;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    overflow: hidden;
    cursor: pointer;
}

.aca-slat:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
}

/* Fondo: foto opcional del curso, atenuada */
.aca-slat__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.55;
    filter: saturate(0.9) brightness(0.9);
    transition: opacity 0.45s ease;
}

.aca-slat__scrim {
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 100%, rgba(206, 50, 255, 0.12) 0%, transparent 60%),
        linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.1) 45%, rgba(0, 0, 0, 0.3) 100%);
}

/* Imagen expandida: llena la columna al abrir (hover desktop / tap móvil) */
.aca-slat__demo {
    position: absolute;
    inset: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.05);
    transition: opacity 0.45s ease, transform 0.6s ease;
}

/* Icono del curso como textura de fondo (manda si no hay foto) */
.aca-slat__icon {
    position: absolute;
    right: -22px;
    bottom: 18px;
    z-index: 0;
    color: rgba(206, 50, 255, 0.16);
    transform: rotate(-8deg);
    transition: opacity 0.45s ease, transform 0.6s ease;
    pointer-events: none;
}

.aca-slat__icon svg { display: block; }

.aca-slat__col {
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    width: 68px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    pointer-events: none;
}

.aca-slat__index {
    font-size: clamp(2.2rem, 4.2vh, 3rem);
    font-weight: 900;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.04em;
    background: linear-gradient(180deg, #CE32FF, #FF3E89);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* Nombre como watermark de contorno; el degradado lo rellena en cascada
   cuando la sección entra en viewport (.is-inview via JS). La cola
   transparente del degradado hace el barrido difuso, como luz líquida. */
.aca-slat__name {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    white-space: nowrap;
    font-size: clamp(1.75rem, 3.5vh, 2.25rem);
    font-weight: 900;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: transparent;
    -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.42);
    background: linear-gradient(180deg, #CE32FF 0%, #FF3E89 62%, rgba(255, 62, 137, 0) 100%);
    background-repeat: no-repeat;
    background-position: top;
    background-size: 100% 0%;
    -webkit-background-clip: text;
    background-clip: text;
    transition:
        background-size 1.8s cubic-bezier(0.16, 1, 0.3, 1),
        -webkit-text-stroke-color 1.2s ease;
}

.aca-slats.is-inview .aca-slat__name {
    background-size: 100% 165%;
    -webkit-text-stroke-color: rgba(206, 50, 255, 0.24);
}

/* Cascada: primero avanza el relleno, el stroke cede después (2º valor) */
.aca-slat:nth-child(1) .aca-slat__name { transition-delay: 0.10s, 0.55s; }
.aca-slat:nth-child(2) .aca-slat__name { transition-delay: 0.26s, 0.71s; }
.aca-slat:nth-child(3) .aca-slat__name { transition-delay: 0.42s, 0.87s; }
.aca-slat:nth-child(4) .aca-slat__name { transition-delay: 0.58s, 1.03s; }
.aca-slat:nth-child(5) .aca-slat__name { transition-delay: 0.74s, 1.19s; }
.aca-slat:nth-child(6) .aca-slat__name { transition-delay: 0.90s, 1.35s; }

/* Ficha expandida del curso */
.aca-slat__caption {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 14px;
    padding: 24px clamp(80px, 9vw, 130px);
    background: radial-gradient(ellipse 74% 60% at 50% 50%, rgba(0, 0, 0, 0.66) 0%, rgba(0, 0, 0, 0.28) 58%, rgba(0, 0, 0, 0) 82%);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease 0.08s, transform 0.4s ease 0.08s;
}

.aca-slat.is-open .aca-slat__bg { opacity: 0.22; }
.aca-slat.is-open .aca-slat__demo { opacity: 1; transform: scale(1); }
.aca-slat.is-open .aca-slat__icon { opacity: 0.4; transform: rotate(-4deg) scale(1.06); }
.aca-slat.is-open .aca-slat__caption { opacity: 1; transform: translateY(0); }

.aca-slat__overline {
    font-size: clamp(0.72rem, 1vw, 0.82rem);
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #E08BFF;
    text-shadow: 0 1px 14px rgba(0, 0, 0, 0.6);
}

.aca-slat__full {
    font-size: clamp(1.3rem, 1.9vw, 1.8rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: #fff;
    text-shadow: 0 2px 22px rgba(0, 0, 0, 0.65);
}

.aca-slat__detail {
    max-width: 48ch;
    font-size: clamp(0.92rem, 1.25vw, 1.08rem);
    font-weight: 500;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.94);
    text-shadow: 0 2px 22px rgba(0, 0, 0, 0.65);
}

.aca-slat__chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 4px;
}

/* Chips con el Liquid Glass real del design system */
.aca-slat__chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 99px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.95);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop-soft);
    -webkit-backdrop-filter: var(--glass-backdrop-soft);
    box-shadow: var(--glass-shadow);
}

.aca-slat__chip svg { flex-shrink: 0; }

@media (min-width: 1024px) {
    .aca-slats__rail {
        gap: 0;
        padding: 0 clamp(24px, 6vw, 72px);
        overflow: visible;
        scroll-snap-type: none;
    }

    /* Desktop sin tarjetas: solo dividers internos, hover expande */
    .aca-slat {
        flex: 1 1 0;
        min-width: 0;
        background: transparent;
        border: 0;
        border-radius: 0;
        transition: flex 0.5s cubic-bezier(0.22, 0.61, 0.21, 1);
    }

    .aca-slat:not(:last-child) {
        border-right: 1px solid;
        border-image: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.28) 15%, rgba(255, 255, 255, 0.28) 85%, transparent 100%) 1;
    }

    .aca-slat:hover,
    .aca-slat:focus-visible { flex: 4.4 1 0; }

    .aca-slat:hover .aca-slat__bg,
    .aca-slat:focus-visible .aca-slat__bg { opacity: 0.22; }

    .aca-slat:hover .aca-slat__demo,
    .aca-slat:focus-visible .aca-slat__demo { opacity: 1; transform: scale(1); }

    .aca-slat:hover .aca-slat__icon,
    .aca-slat:focus-visible .aca-slat__icon { opacity: 0.4; transform: rotate(-4deg) scale(1.06); }

    .aca-slat:hover .aca-slat__caption,
    .aca-slat:focus-visible .aca-slat__caption { opacity: 1; transform: translateY(0); }
}

/* Nav móvil: chevrones glass + contador */
.aca-slats__nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    padding-top: 26px;
}

.aca-slats__nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background:
        linear-gradient(135deg, rgba(206, 50, 255, 0.32), rgba(255, 62, 137, 0.12)),
        rgba(255, 255, 255, 0.05);
    border: 1px solid color-mix(in srgb, #CE32FF 45%, transparent);
    backdrop-filter: blur(14px) saturate(160%);
    -webkit-backdrop-filter: blur(14px) saturate(160%);
    color: #fff;
    cursor: pointer;
    transition: background 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
}

.aca-slats__nav-btn:hover:not(:disabled) {
    background:
        linear-gradient(135deg, rgba(206, 50, 255, 0.5), rgba(255, 62, 137, 0.22)),
        rgba(255, 255, 255, 0.07);
    box-shadow: 0 8px 26px -6px rgba(206, 50, 255, 0.6);
}

.aca-slats__nav-btn:disabled { opacity: 0.35; cursor: default; }

.aca-slats__nav-counter {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    font-variant-numeric: tabular-nums;
    color: rgba(255, 255, 255, 0.55);
}

/* Nota rotatoria — mismo look de los captions bajo el MacBook */
.aca-slats__note {
    position: relative;
    min-height: 5.5rem;
    max-width: 900px;
    margin: clamp(32px, 5vw, 56px) auto 0;
    padding: 0 24px;
}

.aca-slats__note-line {
    position: absolute;
    inset: 0;
    margin: 0;
    color: rgba(255, 255, 255, 0.92);
    font-size: var(--text-2xl);
    font-weight: var(--fw-extrabold);
    line-height: var(--leading-snug);
    letter-spacing: var(--tracking-tight);
    text-align: center;
    text-wrap: balance;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity var(--duration-slow) var(--ease-smooth),
                transform var(--duration-slow) var(--ease-smooth);
}

.aca-slats__note-line .text-gradient {
    display: inline-block;
    padding: 0.24em 0.04em 0.1em;
    line-height: 1.3;
}

.aca-slats__note-line.is-active {
    opacity: 1;
    transform: translateY(0);
}

@media (min-width: 768px) {
    .aca-slats__note-line { font-size: var(--text-3xl); }
}

@media (min-width: 1024px) {
    .aca-slats__note-line { font-size: var(--text-4xl); }
    .aca-slats__note { min-height: 6.5rem; }
}

@media (min-width: 1024px) {
    .aca-slats__nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .aca-slat,
    .aca-slat__bg,
    .aca-slat__demo,
    .aca-slat__icon,
    .aca-slat__caption,
    .aca-slat__name { transition: none !important; }
}


/* ══════════════════════════════════════════════════════════
   4. EL GENERADOR — AcademIA (centered layout, MacBook)
   ══════════════════════════════════════════════════════════ */

.aca-product {
    padding: 0;
    overflow: visible;
}

.aca-product__bleed {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    background: var(--bg-secondary);
    padding-block: var(--space-16) var(--space-12);
    overflow: hidden;
}

[data-theme="dark"] .aca-product__bleed {
    background: #07071c;
}

.aca-product__atmosphere {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(206, 50, 255, 0.06) 0%, transparent 55%),
        radial-gradient(ellipse at 80% 40%, rgba(255, 85, 153, 0.05) 0%, transparent 55%);
}

.aca-product__bleed > .container {
    position: relative;
    z-index: 1;
}

.aca-product__header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-5);
    max-width: 700px;
    margin-inline: auto;
    margin-bottom: var(--space-10);
}

.aca-product__title {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    font-weight: var(--fw-extrabold);
    letter-spacing: var(--tracking-tight);
    line-height: 1.05;
    color: var(--text-primary);
    margin: 0;
}

.aca-product__name {
    font-size: clamp(2.6rem, 6.5vw, 5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.12;
    padding-bottom: 0.06em;
}

.aca-product__tagline {
    font-size: clamp(1.3rem, 3.2vw, 2.4rem);
    font-weight: var(--fw-extrabold);
    letter-spacing: -0.02em;
    padding-bottom: 0.15em;
}

.aca-product__desc {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    max-width: 52ch;
    margin: 0 auto;
}

.aca-product__desc strong {
    color: var(--color-secondary);
    font-weight: var(--fw-bold);
}

[data-theme="dark"] .aca-product__desc strong {
    color: var(--color-secondary-hover);
}

.aca-product__features {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3) var(--space-8);
    width: 100%;
    text-align: left;
}

.aca-product__feature {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.aca-product__feature svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-primary);
    opacity: 0.75;
}

[data-theme="dark"] .aca-product__feature svg {
    color: #b820e6;
    opacity: 0.85;
}

.aca-product__feature div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.aca-product__feature strong {
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    letter-spacing: var(--tracking-tight);
}

.aca-product__feature span {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.aca-product__device {
    width: 100%;
    margin-block: var(--space-10) var(--space-8);
}

.aca-product__macbook {
    max-width: 100%;
}

/* La pantalla del MacBook es blanca: el video es una app clara y así
   cualquier borde del encuadre se funde sin franjas negras */
.aca-product__macbook .device-mockup__content {
    background-color: #fff;
}

/* Cuando el video ya reproduce, el placeholder desaparece del todo */
.aca-product__media.has-video .aca-product__ph {
    display: none;
}

.aca-product__cta {
    display: flex;
    justify-content: center;
    margin-top: var(--space-2);
}

.aca-product__media {
    position: relative;
    width: 100%;
    height: 100%;
}

.aca-product__video {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.aca-product__ph {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    overflow: hidden;
    background: var(--bg-secondary);
}

[data-theme="dark"] .aca-product__ph {
    background: #0a0a1f;
}

.aca-product__ph-glow {
    position: absolute;
    border-radius: var(--radius-full);
    pointer-events: none;
}

.aca-product__ph-glow--a {
    width: 60%;
    height: 80%;
    top: -20%;
    left: -10%;
    background: radial-gradient(circle, color-mix(in srgb, var(--brand-a, #CE32FF) 14%, transparent) 0%, transparent 70%);
}

.aca-product__ph-glow--b {
    width: 60%;
    height: 80%;
    bottom: -20%;
    right: -10%;
    background: radial-gradient(circle, color-mix(in srgb, var(--brand-b, #FF5599) 11%, transparent) 0%, transparent 70%);
}

.aca-product__ph-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    text-align: center;
    padding-inline: var(--space-4);
}

.aca-product__ph-badge {
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.aca-product__ph-text {
    font-size: clamp(1.4rem, 3.5vw, 2.6rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    color: var(--text-primary);
    margin: 0;
}

.aca-product--brand {
    --color-primary: var(--brand-a);
    --color-primary-muted: color-mix(in srgb, var(--brand-a) 40%, transparent);
    --color-secondary: var(--brand-a);
    --color-secondary-hover: var(--brand-b);
    --gradient-text: linear-gradient(135deg, var(--brand-a), var(--brand-b));
}

[data-theme="dark"] .aca-product--brand .aca-product__feature svg {
    color: var(--brand-a);
}


/* ══════════════════════════════════════════════════════════
   5. DEMO JUGABLE — Trivia + Sopa de letras
   ══════════════════════════════════════════════════════════ */

.aca-demo .section__header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.aca-demo .section__header .badge {
    margin-bottom: var(--space-4);
}

/* Título al mismo peso visual de las demás secciones grandes */
.aca-demo .section__title {
    font-size: clamp(2.3rem, 4.6vw, 3.6rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.05;
}

/* ── Reproductor de lección — contenido libre, sin tarjeta ── */
.aca-lesson {
    max-width: 980px;
    margin-inline: auto;
}

/* Estación de inicio: nada del curso existe hasta darle comenzar */
.aca-lesson:not(.is-started) .aca-lesson__chrome,
.aca-lesson:not(.is-started) .aca-lesson__steps,
.aca-lesson:not(.is-started) .aca-lesson__bar,
.aca-lesson:not(.is-started) .aca-lesson__stage {
    display: none;
}

.aca-lesson.is-started .aca-lesson__cover {
    display: none;
}

.aca-lesson__cover {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    min-height: 460px;
    background: linear-gradient(135deg, #14142a, #060610);
    border: 1px solid var(--card-border);
    /* Liquid Glass afinado para superficie de foto oscura */
    --glass-reflex-light: 0.3;
    --glass-reflex-dark: 2;
}

.aca-lesson__cover-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.aca-lesson__cover-scrim {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 75% 65% at 50% 55%, rgba(4, 4, 12, 0.55) 0%, rgba(4, 4, 12, 0.25) 60%, rgba(4, 4, 12, 0.5) 100%);
}

.aca-lesson__cover-body {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--space-4);
    padding: var(--space-6);
}

.aca-lesson__cover-kicker {
    font-size: var(--text-xs);
    font-weight: var(--fw-bold);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
    margin: 0;
}

.aca-lesson__cover-title {
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.05;
    color: #fff;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.55);
    margin: 0;
    max-width: 18ch;
}

.aca-lesson__cover-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: rgba(255, 255, 255, 0.85);
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.6);
    margin: 0;
}

.aca-lesson__start {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-3);
    padding: 15px 34px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: var(--radius-full);
    background: var(--glass-bg-strong);
    color: #fff;
    font-family: inherit;
    font-size: var(--text-base);
    font-weight: var(--fw-bold);
    letter-spacing: var(--tracking-tight);
    cursor: pointer;
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    box-shadow: var(--glass-shadow);
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.4);
    transition: transform var(--duration-fast) var(--ease-smooth),
                background var(--duration-fast) var(--ease-smooth);
}

.aca-lesson__start:hover {
    transform: scale(1.04);
    background: var(--glass-bg-hover);
}

.aca-lesson__start svg {
    width: 16px;
    height: 16px;
}

/* Cabecera editorial del curso — apilada, clara, sin separadores */
.aca-lesson__chrome {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    text-align: center;
}

.aca-lesson__chrome strong {
    font-size: var(--text-xl);
    font-weight: 900;
    letter-spacing: var(--tracking-tight);
    color: var(--text-primary);
}

.aca-lesson__chrome span {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.aca-lesson__chrome em {
    font-style: normal;
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-wide);
    color: var(--color-primary);
}

/* Ruta del curso: estaciones como puntos unidos por hilos de luz */
.aca-lesson__steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    margin: var(--space-5) 0 0;
    padding: 0;
    list-style: none;
}

.aca-lesson__step {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-tertiary);
    cursor: default;
    transition: color var(--duration-fast) var(--ease-smooth);
}

.aca-lesson__step:not(:first-child)::before {
    content: '';
    width: clamp(16px, 4.5vw, 52px);
    height: 1px;
    margin-inline: var(--space-3);
    background: var(--border-default);
    transition: background var(--duration-normal) var(--ease-smooth);
}

.aca-lesson__step-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    border: 1.5px solid var(--text-tertiary);
    flex-shrink: 0;
    transition: border-color var(--duration-normal) var(--ease-smooth),
                background var(--duration-normal) var(--ease-smooth),
                box-shadow var(--duration-normal) var(--ease-smooth);
}

.aca-lesson__step-label {
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-wide);
}

.aca-lesson__step.is-active {
    color: var(--text-primary);
}

.aca-lesson__step.is-active .aca-lesson__step-dot {
    border-color: transparent;
    background: var(--gradient-text);
    box-shadow:
        0 0 0 4px color-mix(in srgb, var(--color-primary) 16%, transparent),
        0 0 14px rgba(206, 50, 255, 0.5);
}

.aca-lesson__step.is-active::before {
    background: var(--gradient-text);
}

.aca-lesson__step.is-done {
    color: var(--text-secondary);
    cursor: pointer;
}

.aca-lesson__step.is-done .aca-lesson__step-dot {
    border-color: transparent;
    background: color-mix(in srgb, var(--color-primary) 65%, transparent);
}

.aca-lesson__step.is-done::before {
    background: color-mix(in srgb, var(--color-primary) 40%, transparent);
}

.aca-lesson__step.is-done:hover {
    color: var(--text-primary);
}

/* Móvil: solo la estación activa muestra su nombre */
@media (max-width: 560px) {
    .aca-lesson__step-label { display: none; }
    .aca-lesson__step.is-active .aca-lesson__step-label { display: inline; }
}

/* Escenario y paneles */
.aca-lesson__stage {
    padding-top: var(--space-8);
}

.aca-lesson__panel[hidden] {
    display: none;
}

.aca-lesson__panel.is-active {
    animation: sof-fade-up 0.5s var(--ease-smooth) both;
}

/* Paso 1: la lección inmersa en la imagen del curso */
.aca-lesson__media {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    min-height: 480px;
    background: linear-gradient(135deg, #14142a, #060610);
    border: 1px solid var(--card-border);
    /* Liquid Glass afinado para superficie de foto oscura */
    --glass-reflex-light: 0.3;
    --glass-reflex-dark: 2;
}

.aca-lesson__media-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.aca-lesson__media-scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(4, 4, 12, 0.92) 0%, rgba(4, 4, 12, 0.35) 45%, rgba(4, 4, 12, 0.3) 100%);
}

/* Subtítulo cinematográfico: solo la frase que se está narrando,
   centrada, sin bandas — como los captions de un keynote */
.aca-lesson__text {
    position: absolute;
    left: clamp(18px, 6%, 60px);
    right: clamp(18px, 6%, 60px);
    bottom: clamp(22px, 6%, 44px);
    z-index: 2;
    display: flex;
    justify-content: center;
    text-align: center;
    margin: 0;
    pointer-events: none;
}

.aca-lesson__sent {
    display: none;
    max-width: 58ch;
    font-size: clamp(1.1rem, 1.9vw, 1.5rem);
    font-weight: var(--fw-bold);
    line-height: var(--leading-snug);
    letter-spacing: var(--tracking-tight);
    color: #fff;
    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.85),
        0 6px 30px rgba(0, 0, 0, 0.6);
}

.aca-lesson__sent.is-now {
    display: block;
    animation: sof-fade-up 0.45s var(--ease-smooth) both;
}

/* Continuar: aparece al lado derecho (hacia donde avanza el curso),
   centrado verticalmente sin transform para no pelear con la animación */
.aca-lesson__advance {
    position: absolute;
    top: 0;
    bottom: 0;
    right: clamp(18px, 5%, 48px);
    margin-block: auto;
    height: max-content;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: 0;
    border: none;
    background: transparent;
    font-family: inherit;
    cursor: pointer;
    animation: sof-fade-up 0.5s var(--ease-smooth) both;
}

.aca-lesson__advance[hidden] { display: none; }

.aca-lesson__advance-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    color: #fff;
    background: var(--glass-bg-strong);
    border: 1px solid rgba(255, 255, 255, 0.28);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    box-shadow: var(--glass-shadow);
    animation: aca-advance-pulse 2.2s var(--ease-in-out) infinite;
    transition: transform var(--duration-fast) var(--ease-smooth),
                background var(--duration-fast) var(--ease-smooth);
}

.aca-lesson__advance:hover .aca-lesson__advance-circle {
    transform: scale(1.1);
    background: var(--glass-bg-hover);
}

.aca-lesson__advance-label {
    font-size: var(--text-xs);
    font-weight: var(--fw-bold);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: #fff;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
}

/* El pulso conserva la sombra del liquid glass y suma la onda */
@keyframes aca-advance-pulse {
    0%   { box-shadow: var(--glass-shadow), 0 0 0 0 rgba(206, 50, 255, 0.45); }
    70%  { box-shadow: var(--glass-shadow), 0 0 0 22px rgba(206, 50, 255, 0); }
    100% { box-shadow: var(--glass-shadow), 0 0 0 0 rgba(206, 50, 255, 0); }
}

/* Badges liquid glass sobre la foto (aparecen con la narración) */
.aca-lesson__tag {
    position: absolute;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 13px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--fw-bold);
    letter-spacing: 0.02em;
    color: rgba(255, 255, 255, 0.95);
    background: var(--glass-bg);
    border: 1px solid rgba(255, 255, 255, 0.16);
    backdrop-filter: var(--glass-backdrop-soft);
    -webkit-backdrop-filter: var(--glass-backdrop-soft);
    box-shadow: var(--glass-shadow);
    opacity: 0;
    transform: translateY(10px) scale(0.92);
    transition: opacity 0.5s var(--ease-smooth), transform 0.5s var(--ease-smooth);
    pointer-events: none;
}

.aca-lesson__tag.is-on {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.aca-lesson__tag svg {
    color: #E08BFF;
    flex-shrink: 0;
}

.aca-lesson__tag--0 { top: 22%; left: 6%; }
.aca-lesson__tag--1 { top: 12%; left: 40%; }
.aca-lesson__tag--2 { top: 40%; left: 13%; }
.aca-lesson__tag--3 { top: 32%; right: 8%; }

/* Control mínimo de narración (esquina superior derecha) */
.aca-lesson__player {
    position: absolute;
    top: clamp(10px, 3%, 18px);
    right: clamp(10px, 3%, 18px);
    z-index: 3;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 6px 12px 6px 6px;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: var(--glass-backdrop-soft);
    -webkit-backdrop-filter: var(--glass-backdrop-soft);
    box-shadow: var(--glass-shadow);
}

.aca-lesson__play {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.92);
    color: #0a0a16;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform var(--duration-fast) var(--ease-smooth),
                background var(--duration-fast) var(--ease-smooth);
}

.aca-lesson__play:hover {
    transform: scale(1.08);
    background: #fff;
}

.aca-lesson__play svg {
    width: 13px;
    height: 13px;
}

.aca-lesson__pause-icon { display: none; }
.aca-lesson__play.is-playing .aca-lesson__play-icon { display: none; }
.aca-lesson__play.is-playing .aca-lesson__pause-icon { display: block; }

.aca-lesson__voice {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1px;
}

.aca-lesson__voice strong {
    font-size: 0.72rem;
    font-weight: var(--fw-bold);
    color: #fff;
    white-space: nowrap;
}

.aca-lesson__voice em {
    font-size: 0.62rem;
    font-style: normal;
    color: #E08BFF;
    white-space: nowrap;
}


.aca-trivia__result-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* Paso 4: diploma */
.aca-lesson__cert {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
    padding-block: var(--space-4);
}

.aca-lesson__cert-text {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    max-width: 44ch;
    margin: 0;
}

/* Documento del certificado — siempre oscuro, acabado premium */
.aca-cert {
    position: relative;
    width: min(600px, 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: clamp(32px, 6vw, 52px) clamp(22px, 6vw, 48px);
    border-radius: var(--radius-xl);
    background:
        radial-gradient(ellipse 90% 70% at 50% 0%, rgba(206, 50, 255, 0.14) 0%, transparent 60%),
        linear-gradient(180deg, #0d0d22 0%, #08081a 100%);
    border: 1px solid rgba(206, 50, 255, 0.4);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.04),
        inset 0 0 70px rgba(206, 50, 255, 0.07),
        0 24px 70px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    text-align: center;
}

/* Doble marco interior fino, como un diploma real */
.aca-cert::before {
    content: '';
    position: absolute;
    inset: 11px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: calc(var(--radius-xl) - 8px);
    pointer-events: none;
}

.aca-cert__watermark {
    position: absolute;
    right: -34px;
    bottom: -40px;
    color: rgba(206, 50, 255, 0.07);
    transform: rotate(-10deg);
    pointer-events: none;
}

.aca-cert__brand {
    font-size: var(--text-lg);
    font-weight: 900;
    letter-spacing: -0.02em;
    color: #fff;
    margin: 0;
}

.aca-cert__type {
    font-size: 0.68rem;
    font-weight: var(--fw-bold);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin: 0 0 var(--space-4);
}

.aca-cert__course {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(1.6rem, 3.4vw, 2.3rem);
    font-weight: 700;
    font-style: italic;
    letter-spacing: -0.01em;
    line-height: 1.15;
    color: #fff;
    margin: 0;
}

.aca-cert__meta {
    font-size: var(--text-xs);
    letter-spacing: var(--tracking-wide);
    color: rgba(255, 255, 255, 0.55);
    margin: 0 0 var(--space-5);
}

.aca-cert__stats {
    display: flex;
    justify-content: center;
    gap: clamp(20px, 5vw, 48px);
    margin-bottom: var(--space-6);
}

.aca-cert__stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.aca-cert__stat span {
    font-size: var(--text-xl);
    font-weight: 900;
    letter-spacing: -0.02em;
}

.aca-cert__stat em {
    font-size: 0.64rem;
    font-style: normal;
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.aca-cert__foot {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: end;
    gap: var(--space-4);
    width: 100%;
    max-width: 440px;
}

.aca-cert__sig {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: var(--space-2);
    border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.aca-cert__sig strong {
    font-family: Georgia, 'Times New Roman', serif;
    font-style: italic;
    font-size: var(--text-base);
    font-weight: 700;
    color: #fff;
}

.aca-cert__sig span {
    font-size: 0.6rem;
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.aca-cert__seal {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    color: #fff;
    background: var(--gradient-primary, linear-gradient(135deg, #CE32FF, #B820E6));
    box-shadow: 0 0 28px rgba(206, 50, 255, 0.45);
}

.aca-lesson__cert-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* ── Evaluación: panel limpio + imagen lateral contenida ── */
.aca-quiz {
    display: grid;
    grid-template-columns: 1fr;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-primary);
}

.aca-quiz__panel {
    display: flex;
    flex-direction: column;
    min-height: 460px;
    padding: clamp(20px, 4vw, 32px) clamp(18px, 4vw, 40px) clamp(24px, 4vw, 36px);
}

.aca-quiz__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.aca-quiz__chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--fw-bold);
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop-soft);
    -webkit-backdrop-filter: var(--glass-backdrop-soft);
    box-shadow: var(--glass-shadow);
}

.aca-quiz__chip--score {
    color: var(--color-primary);
    border-color: color-mix(in srgb, var(--color-primary) 32%, transparent);
}

.aca-quiz__body {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Imagen lateral: presente pero contenida, fundida con el panel */
.aca-quiz__side {
    display: none;
    position: relative;
}

.aca-quiz__bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.aca-quiz__side-scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(4, 4, 12, 0.28) 0%, transparent 40%);
}

@media (min-width: 1024px) {
    .aca-quiz__side {
        border-left: 1px solid var(--card-border);
    }
}

@media (min-width: 1024px) {
    .aca-quiz {
        grid-template-columns: minmax(0, 1.5fr) minmax(260px, 1fr);
    }

    .aca-quiz__side {
        display: block;
    }
}

/* Retos: composición editorial, alineada a la izquierda */
.aca-quiz .aca-trivia__question {
    text-align: left;
    font-size: clamp(1.3rem, 2vw, 1.7rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.2;
    max-width: 30ch;
    margin-bottom: var(--space-6);
}

.aca-quiz .aca-trivia__opts {
    max-width: 560px;
    margin: 0;
    counter-reset: aca-opt;
}

.aca-quiz .aca-trivia__opt {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-3);
    counter-increment: aca-opt;
    text-align: left;
    padding: 14px 16px;
    font-weight: var(--fw-semibold);
}

.aca-quiz .aca-trivia__opt::before {
    content: counter(aca-opt, upper-alpha);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--border-default);
    color: var(--text-tertiary);
    font-size: 0.7rem;
    font-weight: 800;
    flex-shrink: 0;
    transition: border-color var(--duration-fast) var(--ease-smooth),
                color var(--duration-fast) var(--ease-smooth);
}

.aca-quiz .aca-trivia__opt:hover::before {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.aca-quiz .aca-trivia__opt.is-correct::before {
    border-color: var(--color-success, #22c55e);
    color: var(--color-success, #22c55e);
}

.aca-quiz .aca-trivia__opt.is-wrong::before {
    border-color: var(--color-error, #ef4444);
    color: var(--color-error, #ef4444);
}

.aca-quiz .aca-trivia__sentence {
    text-align: left;
    margin-inline: 0;
    max-width: 46ch;
}

.aca-quiz .aca-trivia__words {
    justify-content: flex-start;
}

.aca-quiz .aca-trivia__match {
    margin-inline: 0;
    max-width: 620px;
}

/* Unir arrastrando: las líneas viven en un SVG sobre el reto */
.aca-trivia__match {
    position: relative;
    touch-action: none;
}

.aca-trivia__match-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
    z-index: 1;
}

.aca-trivia__match-line {
    stroke: var(--color-success, #22c55e);
    stroke-width: 2.5;
    stroke-linecap: round;
}

.aca-trivia__match-line--drag {
    stroke: var(--color-primary);
    stroke-dasharray: 6 6;
}

.aca-trivia__match-line--wrong {
    stroke: var(--color-error, #ef4444);
}

.aca-trivia__match-item {
    position: relative;
    z-index: 2;
}

/* ── Trivia ─────────────────────────────────────────────── */
.aca-trivia__q {
    display: none;
}

.aca-trivia__q.is-active {
    display: block;
}

.aca-trivia__q.is-locked .aca-trivia__opt {
    pointer-events: none;
}

.aca-trivia__question {
    font-size: var(--text-lg);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    letter-spacing: var(--tracking-tight);
    text-align: center;
    margin: 0 0 var(--space-5);
}

.aca-trivia__opts {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3);
    max-width: 480px;
    margin-inline: auto;
}

.aca-trivia__opt {
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--fw-medium);
    color: var(--text-primary);
    text-align: left;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: border-color var(--duration-fast) var(--ease-smooth),
                background var(--duration-fast) var(--ease-smooth),
                transform var(--duration-fast) var(--ease-smooth);
}

.aca-trivia__opt:hover {
    border-color: color-mix(in srgb, var(--color-primary) 35%, transparent);
    transform: translateY(-1px);
}

.aca-trivia__opt.is-correct {
    border-color: color-mix(in srgb, var(--color-success, #22c55e) 55%, transparent);
    background: color-mix(in srgb, var(--color-success, #22c55e) 12%, var(--bg-primary));
}

.aca-trivia__opt.is-wrong {
    border-color: color-mix(in srgb, var(--color-error, #ef4444) 55%, transparent);
    background: color-mix(in srgb, var(--color-error, #ef4444) 10%, var(--bg-primary));
}

/* ── Reto: completar la frase ── */
.aca-trivia__sentence {
    font-size: clamp(1.05rem, 1.6vw, 1.3rem);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    line-height: var(--leading-relaxed);
    letter-spacing: var(--tracking-tight);
    text-align: center;
    max-width: 48ch;
    margin: 0 auto var(--space-6);
}

.aca-trivia__slot {
    display: inline-block;
    min-width: 90px;
    text-align: center;
    padding: 1px 10px;
    border-bottom: 2px dashed color-mix(in srgb, var(--color-primary) 55%, transparent);
    color: var(--color-primary);
    font-weight: var(--fw-bold);
    transition: border-color 0.3s var(--ease-smooth), color 0.3s var(--ease-smooth);
}

.aca-trivia__slot.is-filled {
    border-bottom-style: solid;
    border-bottom-color: color-mix(in srgb, var(--color-success, #22c55e) 65%, transparent);
    color: var(--color-success, #22c55e);
}

.aca-trivia__words {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.aca-trivia__word-btn {
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    padding: 10px 22px;
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: border-color var(--duration-fast) var(--ease-smooth),
                background var(--duration-fast) var(--ease-smooth),
                transform var(--duration-fast) var(--ease-smooth);
}

.aca-trivia__word-btn:hover {
    border-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
    transform: translateY(-1px);
}

.aca-trivia__word-btn.is-correct {
    border-color: color-mix(in srgb, var(--color-success, #22c55e) 55%, transparent);
    background: color-mix(in srgb, var(--color-success, #22c55e) 12%, var(--bg-primary));
}

.aca-trivia__word-btn.is-wrong {
    border-color: color-mix(in srgb, var(--color-error, #ef4444) 55%, transparent);
    background: color-mix(in srgb, var(--color-error, #ef4444) 10%, var(--bg-primary));
}

/* ── Reto: unir parejas ── */
.aca-trivia__match {
    display: grid;
    grid-template-columns: minmax(110px, 200px) 1fr;
    gap: var(--space-3) var(--space-5);
    max-width: 620px;
    margin-inline: auto;
}

.aca-trivia__match-col {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.aca-trivia__match-item {
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--text-primary);
    text-align: center;
    padding: 12px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: border-color var(--duration-fast) var(--ease-smooth),
                background var(--duration-fast) var(--ease-smooth),
                color var(--duration-fast) var(--ease-smooth);
}

.aca-trivia__match-item--r {
    font-weight: var(--fw-medium);
    text-align: left;
}

.aca-trivia__match-item:hover:not(.is-matched) {
    border-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
}

.aca-trivia__match-item.is-sel {
    border-color: var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 10%, var(--bg-primary));
    color: var(--color-primary);
}

.aca-trivia__match-item.is-matched {
    border-color: color-mix(in srgb, var(--color-success, #22c55e) 50%, transparent);
    background: color-mix(in srgb, var(--color-success, #22c55e) 10%, var(--bg-primary));
    color: var(--color-success, #22c55e);
    cursor: default;
}

.aca-trivia__match-item.is-wrong {
    border-color: color-mix(in srgb, var(--color-error, #ef4444) 60%, transparent);
    background: color-mix(in srgb, var(--color-error, #ef4444) 10%, var(--bg-primary));
    animation: aca-shake 0.32s var(--ease-smooth);
}

@keyframes aca-shake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-4px); }
    75%      { transform: translateX(4px); }
}

.aca-trivia__result {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
}

.aca-trivia__result[hidden] {
    display: none;
}

.aca-trivia__result-title {
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin: 0;
}

.aca-trivia__score {
    font-size: clamp(2.6rem, 7vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
    margin: 0;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.aca-trivia__verdict {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    max-width: 40ch;
    margin: 0;
}

.aca-trivia__progress {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-5);
}

.aca-trivia__dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--border-default);
    transition: background var(--duration-fast) var(--ease-smooth);
}

.aca-trivia__dot.is-active {
    background: var(--color-primary);
}

.aca-trivia__dot.is-done {
    background: color-mix(in srgb, var(--color-primary) 45%, transparent);
}

/* ── Sopa de letras ─────────────────────────────────────── */
.aca-soup {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.aca-soup__instructions {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-align: center;
    margin: 0;
}

.aca-soup__grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 3px;
    width: 100%;
    max-width: 420px;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

.aca-soup__cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: clamp(0.7rem, 2.6vw, 1rem);
    font-weight: var(--fw-semibold);
    color: var(--text-secondary);
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: 6px;
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-smooth),
                color var(--duration-fast) var(--ease-smooth);
}

.aca-soup__cell.is-sel {
    background: color-mix(in srgb, var(--color-primary) 22%, var(--bg-primary));
    color: var(--text-primary);
    border-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
}

.aca-soup__cell.is-found {
    background: color-mix(in srgb, var(--color-primary) 15%, var(--bg-primary));
    color: var(--color-primary);
    border-color: color-mix(in srgb, var(--color-primary) 30%, transparent);
}

.aca-soup__words {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin: 0;
    padding: 0;
}

.aca-soup__word {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-wider);
    color: var(--text-secondary);
    padding: 4px 12px;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-full);
    transition: opacity var(--duration-fast) var(--ease-smooth),
                border-color var(--duration-fast) var(--ease-smooth);
}

.aca-soup__word.is-found {
    text-decoration: line-through;
    opacity: 0.45;
    border-color: color-mix(in srgb, var(--color-primary) 35%, transparent);
    color: var(--color-primary);
}

.aca-soup__done {
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
    text-align: center;
    margin: 0;
}

.aca-soup__done[hidden] {
    display: none;
}


/* ══════════════════════════════════════════════════════════
   6. SIMULADOR DE MARCA — Tu campus, tu marca
   ══════════════════════════════════════════════════════════ */

.aca-brand-section .section__header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.aca-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    max-width: 980px;
    margin-inline: auto;
}

.aca-brand__controls {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.aca-brand__group {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.aca-brand__label {
    font-size: var(--text-xs);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--tracking-wider);
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.aca-brand__swatches {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.aca-brand__swatch {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    background: var(--sw);
    border: 2px solid transparent;
    box-shadow: inset 0 0 0 2px var(--bg-primary);
    cursor: pointer;
    transition: transform var(--duration-fast) var(--ease-smooth),
                border-color var(--duration-fast) var(--ease-smooth);
}

.aca-brand__swatch:hover {
    transform: scale(1.1);
}

.aca-brand__swatch.is-active {
    border-color: var(--text-primary);
}

.aca-brand__picker {
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px dashed var(--border-strong, var(--border-default));
    border-radius: var(--radius-full);
    background: transparent;
    cursor: pointer;
    overflow: hidden;
}

.aca-brand__picker::-webkit-color-swatch-wrapper {
    padding: 4px;
}

.aca-brand__picker::-webkit-color-swatch {
    border: none;
    border-radius: var(--radius-full);
}

.aca-brand__input {
    font-family: inherit;
    font-size: var(--text-sm);
    color: var(--text-primary);
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    transition: border-color var(--duration-fast) var(--ease-smooth);
    max-width: 320px;
}

.aca-brand__input:focus {
    outline: none;
    border-color: color-mix(in srgb, var(--color-primary) 50%, transparent);
}

.aca-brand__styles {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.aca-brand__style {
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--text-secondary);
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: color var(--duration-fast) var(--ease-smooth),
                border-color var(--duration-fast) var(--ease-smooth),
                background var(--duration-fast) var(--ease-smooth);
}

.aca-brand__style:hover {
    color: var(--text-primary);
    border-color: color-mix(in srgb, var(--color-primary) 30%, transparent);
}

.aca-brand__style.is-active {
    color: var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 10%, transparent);
    border-color: color-mix(in srgb, var(--color-primary) 35%, transparent);
}

.aca-brand__hint {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: var(--leading-relaxed);
    margin: 0;
    max-width: 38ch;
}

/* ── Preview del aula — superficie fija (así se ve el curso del cliente) ── */
.aca-brand__preview {
    --demo-primary: #CE32FF;
    --demo-radius: 18px;
    --demo-font: var(--font-sans);

    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-6);
    background: #ffffff;
    color: #18181b;
    font-family: var(--demo-font);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: calc(var(--demo-radius) + 6px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08),
                0 24px 48px rgba(0, 0, 0, 0.1);
    transition: border-radius 0.35s var(--ease-smooth);
}

[data-theme="dark"] .aca-brand__preview {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35),
                0 24px 48px rgba(0, 0, 0, 0.4);
}

.aca-course-ui__topbar {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.aca-course-ui__logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #ffffff;
    background: var(--demo-primary);
    border-radius: calc(var(--demo-radius) * 0.5);
    flex-shrink: 0;
    transition: background 0.35s var(--ease-smooth),
                border-radius 0.35s var(--ease-smooth);
}

.aca-course-ui__company {
    font-size: var(--text-sm);
    font-weight: 700;
    color: #18181b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.aca-course-ui__module {
    margin-left: auto;
    font-size: 11px;
    font-weight: 600;
    color: #71717a;
    white-space: nowrap;
    flex-shrink: 0;
}

.aca-course-ui__progress {
    width: 100%;
    height: 6px;
    background: #ececf1;
    border-radius: 99px;
    overflow: hidden;
}

.aca-course-ui__progress span {
    display: block;
    height: 100%;
    border-radius: 99px;
    background: linear-gradient(90deg,
        var(--demo-primary),
        color-mix(in srgb, var(--demo-primary) 55%, #ffffff));
    transition: background 0.35s var(--ease-smooth);
}

.aca-course-ui__title {
    font-size: var(--text-lg);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #111111;
    margin: 0;
}

.aca-course-ui__player {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 10px 14px;
    background: color-mix(in srgb, var(--demo-primary) 7%, #ffffff);
    border: 1px solid color-mix(in srgb, var(--demo-primary) 18%, #ffffff);
    border-radius: calc(var(--demo-radius) * 0.6);
    transition: background 0.35s var(--ease-smooth),
                border-color 0.35s var(--ease-smooth),
                border-radius 0.35s var(--ease-smooth);
}

.aca-course-ui__play {
    display: flex;
    color: var(--demo-primary);
    flex-shrink: 0;
    transition: color 0.35s var(--ease-smooth);
}

.aca-course-ui__waves {
    display: flex;
    align-items: center;
    gap: 2px;
    height: 22px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.aca-course-ui__waves i {
    display: block;
    width: 3px;
    border-radius: 2px;
    background: color-mix(in srgb, var(--demo-primary) 60%, #ffffff);
    transition: background 0.35s var(--ease-smooth);
    animation: aca-wave 1.2s var(--ease-in-out) infinite;
}

.aca-course-ui__waves i:nth-child(1)  { height: 30%; animation-delay: 0s; }
.aca-course-ui__waves i:nth-child(2)  { height: 65%; animation-delay: 0.1s; }
.aca-course-ui__waves i:nth-child(3)  { height: 45%; animation-delay: 0.2s; }
.aca-course-ui__waves i:nth-child(4)  { height: 90%; animation-delay: 0.3s; }
.aca-course-ui__waves i:nth-child(5)  { height: 55%; animation-delay: 0.4s; }
.aca-course-ui__waves i:nth-child(6)  { height: 75%; animation-delay: 0.5s; }
.aca-course-ui__waves i:nth-child(7)  { height: 40%; animation-delay: 0.6s; }
.aca-course-ui__waves i:nth-child(8)  { height: 85%; animation-delay: 0.7s; }
.aca-course-ui__waves i:nth-child(9)  { height: 50%; animation-delay: 0.8s; }
.aca-course-ui__waves i:nth-child(10) { height: 70%; animation-delay: 0.9s; }
.aca-course-ui__waves i:nth-child(11) { height: 35%; animation-delay: 1s; }
.aca-course-ui__waves i:nth-child(12) { height: 60%; animation-delay: 1.1s; }

@keyframes aca-wave {
    0%, 100% { transform: scaleY(0.7); }
    50%      { transform: scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
    .aca-course-ui__waves i {
        animation: none;
    }
}

.aca-course-ui__voice {
    font-size: var(--text-xs);
    color: #52525b;
    white-space: nowrap;
    flex-shrink: 0;
}

.aca-course-ui__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.aca-course-ui__btn {
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: 700;
    color: #ffffff;
    padding: 10px 20px;
    background: var(--demo-primary);
    border: none;
    border-radius: calc(var(--demo-radius) * 0.6);
    cursor: pointer;
    transition: background 0.35s var(--ease-smooth),
                border-radius 0.35s var(--ease-smooth);
}

.aca-course-ui__quiz-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--demo-primary);
    padding: 6px 12px;
    border: 1px dashed color-mix(in srgb, var(--demo-primary) 45%, #ffffff);
    border-radius: 99px;
    transition: color 0.35s var(--ease-smooth),
                border-color 0.35s var(--ease-smooth);
}

.aca-course-ui__cert {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xs);
    font-weight: 600;
    color: #52525b;
    padding-top: var(--space-3);
    border-top: 1px dashed #e4e4ec;
}

.aca-course-ui__cert svg {
    color: var(--demo-primary);
    transition: color 0.35s var(--ease-smooth);
    flex-shrink: 0;
}

/* Estilos de preview (radios + tipografía se mueven vía --demo-*) */
.aca-brand__preview[data-style="editorial"] {
    --demo-font: Georgia, 'Times New Roman', serif;
}

.aca-brand__preview[data-style="tech"] {
    --demo-font: var(--font-mono);
}


/* ══════════════════════════════════════════════════════════
   7. ENGINE — magIA (always dark)
   ══════════════════════════════════════════════════════════ */

.aca-engine {
    padding: 0;
    overflow: visible;
}

.aca-engine__bleed {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    background: #060610;
    padding-block: var(--space-24);
    overflow: hidden;
}

.aca-engine__glow {
    position: absolute;
    border-radius: var(--radius-full);
    pointer-events: none;
}

.aca-engine__glow--a {
    width: 60vw;
    height: 60vw;
    top: -20%;
    left: -10%;
    background: radial-gradient(circle, rgba(255, 85, 153, 0.08) 0%, transparent 65%);
}

.aca-engine__glow--b {
    width: 50vw;
    height: 50vw;
    bottom: -15%;
    right: -8%;
    background: radial-gradient(circle, rgba(206, 50, 255, 0.08) 0%, transparent 65%);
}

.aca-engine__bleed > .container {
    position: relative;
    z-index: 1;
}

.aca-engine__header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
    max-width: 600px;
    margin-inline: auto;
    margin-bottom: var(--space-16);
}

.aca-engine__header .badge {
    align-self: center;
}

.aca-engine__title {
    font-size: clamp(2.2rem, 5.5vw, 3.8rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    color: #fafafa;
    margin: 0;
}

.aca-engine__desc {
    font-size: var(--text-base);
    color: rgba(250, 250, 250, 0.5);
    line-height: 1.65;
    margin: 0;
}

.aca-engine__magia {
    text-align: center;
}

.aca-engine__magia-word {
    font-size: clamp(6rem, 18vw, 14rem);
    font-weight: 900;
    letter-spacing: -0.06em;
    line-height: 1.12;
    color: var(--text-on-primary);
    margin: 0 0 var(--space-6);
}

.aca-engine__magia-word em {
    font-style: normal;
    display: inline-block;
    padding: 0.14em 0.12em 0.06em 0;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.aca-engine__magia-sub {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: rgba(250, 250, 250, 0.5);
    line-height: 1.6;
    max-width: 42ch;
    margin: 0 auto var(--space-6);
}

.aca-engine__magia-products {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(250, 250, 250, 0.35);
}

.aca-engine__magia-products span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.aca-engine__magia-products svg {
    opacity: 0.5;
}

.aca-engine__dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: rgba(250, 250, 250, 0.2);
    flex-shrink: 0;
}

@media (min-width: 1024px) {
    .aca-engine__magia-word {
        font-size: clamp(10rem, 20vw, 18rem);
    }
}


/* ══════════════════════════════════════════════════════════
   8. IMPACTO — header centrado
   ══════════════════════════════════════════════════════════ */

.aca-impact .section__header {
    text-align: center;
    margin-bottom: var(--space-10);
}


/* ═══════════════════════════════════════════════════════
   RESPONSIVE  (mobile-first: min-width only)
   ═══════════════════════════════════════════════════════ */

/* ── sm  (>= 640px) ─────────────────────────────────── */
@media (min-width: 640px) {
    .aca-hero__line {
        font-size: clamp(4rem, 13vw, 8.5rem);
    }

    .aca-statement__pillars {
        grid-template-columns: repeat(3, 1fr);
    }

    .aca-statement__pillar {
        padding: var(--space-8) var(--space-8) var(--space-8) 0;
        border-bottom: none;
        border-right: 1px solid var(--border-default);
    }

    .aca-statement__pillar:last-child {
        border-right: none;
    }

    .aca-product__features {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── lg  (>= 1024px) ────────────────────────────────── */
@media (min-width: 1024px) {
    .aca-hero__line {
        font-size: clamp(5rem, 10.5vw, 9rem);
    }

    .aca-hero__sub {
        font-size: var(--text-xl);
    }

    .aca-demo__card {
        padding: var(--space-8);
    }

    .aca-brand {
        display: grid;
        grid-template-columns: minmax(280px, 380px) 1fr;
        gap: var(--space-10);
        align-items: start;
    }
}