.math-steps,
.math-audience,
.math-topics {
    padding: clamp(56px, 7vw, 100px) 0;
    color: var(--color-text);
}

.math-steps h2,
.math-audience h2,
.math-topics h2 {
    max-width: 760px;
    margin: 0 0 clamp(30px, 4vw, 52px);
    font-size: clamp(1.8rem, 3.2vw, 2.75rem);
    line-height: 1.17;
    letter-spacing: -0.025em;
    text-align: left;
}

.math-steps h3,
.math-audience h3,
.math-topics h3 {
    margin: 0;
    font-size: clamp(1.3rem, 1.8vw, 1.65rem);
    line-height: 1.25;
}

.math-steps p,
.math-audience__item > p:last-child,
.math-topics p {
    max-width: 55ch;
    margin: 14px 0 0;
    color: var(--color-muted);
    line-height: 1.6;
}

.math-steps {
    background: var(--color-bg);
}

.math-steps__list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--color-line);
}

.math-steps__item {
    position: relative;
    min-width: 0;
    padding: 28px clamp(18px, 3vw, 38px) 6px 0;
}

.math-steps__item + .math-steps__item {
    padding-left: clamp(18px, 3vw, 38px);
    border-left: 1px solid var(--color-line);
}

.math-steps__number {
    display: block;
    margin-bottom: clamp(28px, 4vw, 48px);
    color: var(--color-primary);
    font-size: clamp(2.1rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.06em;
}

.math-audience {
    background: var(--color-surface-1);
}

.math-audience__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    grid-template-rows: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.math-audience__item {
    min-width: 0;
    padding: clamp(24px, 3vw, 38px);
    border: 1px solid var(--color-line);
    border-radius: 18px;
    background: var(--color-surface-2);
}

.math-audience__item--primary {
    grid-row: span 2;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 365px;
    background: color-mix(in oklch, var(--color-primary) 16%, var(--color-surface-2));
    border-color: color-mix(in oklch, var(--color-primary) 35%, var(--color-line));
}

.math-audience__label {
    margin: 0 0 18px;
    color: var(--color-primary);
    font-size: 0.95rem;
    font-weight: 700;
}

.math-audience__item--primary .math-audience__label {
    margin-bottom: auto;
}

.math-audience__item--primary h3 {
    max-width: 16ch;
    font-size: clamp(1.6rem, 2.7vw, 2.35rem);
}

.math-topics {
    background: var(--color-bg);
}

.math-topics .subject-topic-intro {
    max-width: 72ch;
    margin: 0 0 30px;
    color: var(--color-muted);
    line-height: 1.7;
}

.math-topics__list {
    border-top: 1px solid var(--color-line);
}

.math-topics__item {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
    gap: clamp(20px, 5vw, 80px);
    align-items: start;
    padding: clamp(22px, 3vw, 34px) 0;
    border-bottom: 1px solid var(--color-line);
}

.math-topics__item h3 {
    color: var(--color-primary);
}

.math-topics__item p {
    margin-top: 0;
}

@media (max-width: 767px) {
    .math-steps__list {
        grid-template-columns: 1fr;
    }

    .math-steps__item,
    .math-steps__item + .math-steps__item {
        padding: 22px 0;
        border-left: 0;
    }

    .math-steps__item + .math-steps__item {
        border-top: 1px solid var(--color-line);
    }

    .math-steps__number {
        margin-bottom: 18px;
    }

    .math-audience__grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .math-audience__item--primary {
        grid-row: auto;
        min-height: 250px;
    }

    .math-topics__item {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}