.intro-instructor__media {
    width: 20rem;
    height: 24rem;
}

.intro-instructor__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


/* FAQ v18 — accordion mechanics */
.faq-accordion-panel {
    max-height: 0;
}

.faq-accordion-icon.solver-hints-symbol-reveal {
    transform: rotate(180deg);
}

/* Bootstrap: grid + gap (row gutters often collapse) */
.tips-detailed__bs-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .tips-detailed__bs-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.tips-detailed__subtitle-max {
    max-width: 42rem;
}

.tips-detailed__thumb {
    width: 3rem;
    height: 3rem;
}

.tips-detailed__cta-thumb {
    width: 2rem;
    height: 2rem;
}

.tips-detailed__min-shrink {
    min-width: 0;
}

.content-grid-gap {
    gap: 2rem;
}

.content-full-frame {
    max-width: 80rem;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.content-heading-gap {
    margin-bottom: 2rem;
}

.content-section-pad {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.content-base-height {
    display: block;
    width: 100%;
    height: 16rem;
    min-height: 16rem;
    flex-shrink: 0;
    object-fit: cover;
}

/* glossary invert — hover lift supplied via Tailwind on @sem('block'). */

/* subscribe v24 — postcard: geometry shared by both CSS frameworks, no colors */
.mailing-postcard__section--py-4xl {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.mxw-3xl {
    max-width: 48rem !important;
}

/* perforated seam between the stamp stub and the message body */
.mailing-postcard__stub {
    border-bottom-width: 2px;
    border-bottom-style: dashed;
}

.mailing-postcard__perf {
    width: 0;
    border-inline-start-width: 2px;
    border-inline-start-style: dashed;
}

.mailing-postcard__label {
    font-size: 0.75rem;
    letter-spacing: 0.025em;
}

.mailing-postcard__body {
    padding: 2rem;
}

.mailing-postcard__stamp {
    top: 1rem;
    inset-inline-end: 1rem;
    width: 3.5rem;
    height: 3.5rem;
    transform: rotate(4deg);
}

.mailing-postcard__title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    padding-inline-end: 4rem;
}

.mailing-postcard__text {
    margin-bottom: 1.5rem;
    padding-inline-end: 4rem;
}

.mailing-postcard__row {
    flex-direction: column;
    gap: 0.75rem;
}

.mailing-postcard__input,
.mailing-postcard__cta {
    padding: 0.75rem 1rem;
}

.mailing-postcard__cta {
    padding-inline: 1.5rem;
}

@media (min-width: 640px) {
    .mailing-postcard__row {
        flex-direction: row;
    }
}

@media (min-width: 768px) {
    .mailing-postcard__stub {
        width: 25%;
        border-bottom-width: 0;
    }

    .mailing-postcard__body {
        width: 75%;
    }

    .mailing-postcard__title {
        font-size: 1.875rem;
    }
}