/* ============================================================
 * FutureLearn — About story
 * Version: v1.2.1
 * ============================================================ */

.about-story {
    position: relative;
    overflow: hidden;
    padding-block: var(--section-space-y);
    background: linear-gradient(
        180deg,
        rgba(115, 205, 255, 0) 0%,
        var(--gradient-cyan-end) 100%
    );
}

.about-story__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
    align-items: end;
}

.about-story__content {
    max-width: 48rem;
}

.about-story__title {
    margin: 0;
    color: var(--primary-blue-1);
    font-family: var(--font-display);
    font-size: clamp(2.1rem, 7vw, 3.25rem);
    font-weight: 700;
    line-height: 1.12;
    text-wrap: balance;
}

.about-story__lead {
    max-width: 44rem;
    margin: 1.35rem 0 0;
    color: var(--natural-black-2);
    font-family: var(--font-display);
    font-size: clamp(1.15rem, 2.8vw, 1.5rem);
    font-weight: 500;
    line-height: 1.55;
}

.about-story__lead strong {
    color: var(--primary-blue-1);
    font-weight: 700;
}

.about-story__copy {
    max-width: 45rem;
    margin-top: 1.25rem;
    color: var(--natural-black-3);
    font-size: 1rem;
    line-height: 1.75;
}

.about-story__copy p {
    margin: 0;
}

.about-story__copy p + p {
    margin-top: 0.85rem;
}

.about-story__copy strong {
    color: var(--natural-black-2);
    font-weight: 700;
}

.about-story__milestone {
    position: relative;
    min-height: 13rem;
    padding: 1.4rem 1.5rem 1.5rem;
    overflow: hidden;
    border-radius: var(--radius-card);
    background-color: var(--primary-blue-1);
    color: var(--white);
    isolation: isolate;
}

.about-story__milestone::after {
    position: absolute;
    right: -2.5rem;
    bottom: -3.5rem;
    z-index: -1;
    width: 10rem;
    height: 10rem;
    border: 2rem solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    content: "";
}

.about-story__milestone-year {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(4.5rem, 16vw, 7rem);
    font-weight: 700;
    letter-spacing: -0.07em;
    line-height: 0.85;
}

.about-story__milestone-date {
    margin: 1rem 0 0;
    color: var(--accent-orange);
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
}

.about-story__milestone-place {
    margin: 0.65rem 0 0;
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.5;
}

.about-story__gallery {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.9rem;
    margin-top: var(--section-content-gap);
}

.about-story__photo {
    position: relative;
    min-height: 15rem;
    margin: 0;
    overflow: hidden;
    border-radius: var(--radius-card);
    background-color: var(--secondary-cyan-light);
}

.about-story__photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-story__photo figcaption {
    position: absolute;
    right: 0.8rem;
    bottom: 0.8rem;
    left: 0.8rem;
    width: fit-content;
    max-width: calc(100% - 1.6rem);
    margin: 0;
    padding: 0.55rem 0.75rem;
    border-radius: 0.65rem;
    background-color: rgba(0, 57, 96, 0.82);
    color: var(--white);
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.4;
    backdrop-filter: blur(6px);
}

@media (min-width: 640px) {
    .about-story__gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        grid-template-rows: repeat(2, 13rem);
    }

    .about-story__photo {
        min-height: 0;
    }

    .about-story__photo--main {
        grid-row: 1 / span 2;
    }
}

@media (min-width: 768px) {
    .about-story__layout {
        grid-template-columns: minmax(0, 2fr) minmax(15rem, 0.75fr);
        gap: 3rem;
    }

    .about-story__milestone {
        min-height: 17rem;
        padding: 1.75rem;
    }

    .about-story__gallery {
        grid-template-columns: minmax(0, 1.55fr) minmax(16rem, 0.85fr);
        grid-template-rows: repeat(2, 14rem);
        gap: 1rem;
        margin-top: var(--section-content-gap);
    }

    .about-story__photo figcaption {
        right: 1rem;
        bottom: 1rem;
        left: 1rem;
        max-width: calc(100% - 2rem);
        font-size: 0.9rem;
    }
}

@media (min-width: 1200px) {
    .about-story__layout {
        grid-template-columns: minmax(0, 2.15fr) minmax(17rem, 0.7fr);
        gap: 5rem;
    }

    .about-story__gallery {
        grid-template-rows: repeat(2, 15rem);
    }
}