.faq {
    background: var(--color-background);
}

.faq__grid {
    display: grid;
    grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(56px, 9vw, 128px);
    align-items: start;
}

.faq__intro {
    position: sticky;
    top: calc(var(--header-height) + 36px);
}

.faq__intro h2 {
    margin-bottom: 24px;
    color: var(--color-text);
    font-size: clamp(2.2rem, 4vw, 3.8rem);
    font-weight: 680;
    letter-spacing: -0.055em;
    line-height: 1;
}

.faq__intro > p:not(.eyebrow) {
    margin-bottom: 27px;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.faq__list {
    border-top: 1px solid var(--color-border-strong);
}

.faq details {
    border-bottom: 1px solid var(--color-border-strong);
}

.faq summary {
    display: flex;
    gap: 24px;
    align-items: center;
    justify-content: space-between;
    padding: 27px 0;
    color: var(--color-text);
    cursor: pointer;
    font-size: 1.02rem;
    font-weight: 680;
    letter-spacing: -0.015em;
    list-style: none;
}

.faq summary::-webkit-details-marker {
    display: none;
}

.faq summary span {
    position: relative;
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    border: 1px solid var(--color-border-strong);
    border-radius: 50%;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.faq summary span::before,
.faq summary span::after {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 1px;
    background: var(--color-text);
    content: "";
    transform: translate(-50%, -50%);
}

.faq summary span::after {
    transform: translate(-50%, -50%) rotate(90deg);
    transition: transform var(--transition-fast);
}

.faq details[open] summary span {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
    transform: rotate(180deg);
}

.faq details[open] summary span::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.faq details p {
    max-width: 680px;
    margin: -4px 55px 26px 0;
    color: var(--color-text-secondary);
    font-size: 0.91rem;
    line-height: 1.75;
}

@media (max-width: 820px) {
    .faq__grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .faq__intro {
        position: static;
        max-width: 620px;
    }
}

@media (max-width: 520px) {
    .faq summary {
        font-size: 0.94rem;
    }

    .faq details p {
        margin-right: 0;
    }
}