/* ═══ SINGLE TEMA (.st-*) ═══ */
.st-container {
    max-width: 680px;
    margin: 0 auto;
    padding: 60px 20px 80px;
}
.st-breadcrumb {
    display: block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}
.st-title {
    font-family: "Gloock", serif;
    font-size: clamp(28px, 4.5vw, 44px);
    font-weight: normal;
    line-height: 1.15;
    color: var(--color-text);
    margin-bottom: 20px;
}
.st-featured-img {
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
    min-height: 200px;
    background: var(--color-background-secondary);
}
.st-featured-img img {
    width: 100%;
    height: 300px;
    display: block;
    object-fit: cover;
}
.st-content {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 28px;
}

.st-content img { max-width: 100%; height: auto; border-radius: 10px; }

/* Avatares */
.st-avatares {
    display: flex;
    align-items: center;
}

/* Sección Qué vas a aprender */

.st-section-title {
    font-family: "Gloock", serif;
    font-size: clamp(20px, 3vw, 26px);
    font-weight: normal;
    color: var(--color-text);
    margin-bottom: 16px;
}
.st-lecciones-grid {
    display: flex;
    flex-direction: column;
    border-radius: 12px;
    overflow: hidden;
}
.st-leccion-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.15s;
}
.st-leccion-card:last-child { border-bottom: none; }
.st-leccion-card:hover { background: var(--color-background-secondary); }
.st-leccion-card.st-completada { background: var(--color-green-background); border-radius: var(--m); }
.st-leccion-card.st-completada * { color: var(--color-green-text); }
.st-leccion-thumb {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--color-background-secondary);
}
.st-leccion-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.st-leccion-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
}
.st-leccion-prof {
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* Actividades */
.st-actividades { margin-bottom: 36px; }

/* Botón CTA */
.st-btn-cta {
    display: block;
    text-align: center;
    background: var(--color-principal);
    color: #1a1a1a;
    font-weight: 600;
    font-size: 16px;
    padding: 16px 24px;
    border-radius: 50px;
    text-decoration: none;
    transition: opacity 0.2s;
    margin-top: 10px;
}
.st-btn-cta:hover { opacity: 0.85; }

/* ═══ SINGLE LECCIÓN (.sl-*) ═══ */
.sl-container {
    max-width: 680px;
    margin: 0 auto;
    padding: 60px 20px 80px;
}
.sl-featured-img {
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
    height: 200px;
    background: var(--color-background-secondary);
}
.sl-featured-img img {
    width: 100%;
    height: auto;
    display: block;
}
.sl-video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 24px;
    background: #000;
}
.sl-video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.sl-title {
    font-family: "Gloock", serif;
    font-size: clamp(28px, 4.5vw, 44px);
    font-weight: normal;
    line-height: 1.15;

}
.sl-content {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 28px;
}

.sl-content img { max-width: 100%; height: auto; border-radius: 10px; }

/* Avatares */
.sl-avatares {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}

/* Botón comprar */
.sl-btn-comprar {
    display: block;
    width: 100%;
    text-align: center;
    background: var(--color-principal);
    color: #1a1a1a;
    font-weight: 600;
    font-size: 16px;
    padding: 16px 24px;
    border-radius: 50px;
    text-decoration: none;
    transition: opacity 0.2s;
}
.sl-btn-comprar:hover { opacity: 0.85; }

@media screen and (max-width: 600px) {
    .sl-container { padding: 40px 16px 60px; }
}

/* Badge tipo de lección */
.sl-tipo-badge {
    display: inline-block;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--color-background-secondary);
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

/* Lección bloqueada */
.sl-locked {
    position: relative;
}
.sl-lock-msg {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
    text-align: center;
    padding: 20px;
    border: 1px dashed var(--color-border);
    border-radius: 12px;
}