.onos-advanced-faq {
    --onos-faq-primary: #0057D9;
    --onos-faq-secondary: #0F4CDB;
    --onos-faq-accent: #FFD700;
    --onos-faq-bg: #F8FAFC;
    --onos-faq-section-bg: #F8FAFC;
    --onos-faq-hero-bg: #0057D9;
    --onos-faq-hero-text: #FFFFFF;
    --onos-faq-card-bg: #FFFFFF;
    --onos-faq-heading: #0F172A;
    --onos-faq-body: #475569;
    --onos-faq-border: #DCE5F2;
    --onos-faq-button: #0057D9;
    --onos-faq-button-hover: #002E6D;
    --onos-faq-icon: #0057D9;
    --onos-faq-search-color: #0F172A;
    --onos-faq-search-bg: #FFFFFF;
    --onos-faq-cat-active: #0057D9;
    --onos-faq-cat-active-text: #FFFFFF;
    --onos-faq-cat-inactive: #FFFFFF;
    --onos-faq-cat-inactive-text: #0F172A;
    --onos-faq-support-bg: #002E6D;
    --onos-faq-support-text: #FFFFFF;
    --onos-faq-support-button: #FFD700;
    --onos-faq-support-button-text: #002E6D;
    --onos-faq-duration: 300ms;
    background: var(--onos-faq-section-bg);
    color: var(--onos-faq-body);
    box-sizing: border-box;
    direction: inherit;
}

.onos-advanced-faq *,
.onos-advanced-faq *::before,
.onos-advanced-faq *::after {
    box-sizing: border-box;
}

.onos-advanced-faq--emerald {
    --onos-faq-primary: #047857;
    --onos-faq-secondary: #065F46;
    --onos-faq-accent: #D4AF37;
    --onos-faq-hero-bg: #047857;
    --onos-faq-button: #047857;
    --onos-faq-button-hover: #064E3B;
    --onos-faq-cat-active: #047857;
    --onos-faq-support-bg: #064E3B;
}

.onos-advanced-faq--red {
    --onos-faq-primary: #C1121F;
    --onos-faq-secondary: #8F0D17;
    --onos-faq-accent: #FFFFFF;
    --onos-faq-hero-bg: #C1121F;
    --onos-faq-button: #C1121F;
    --onos-faq-button-hover: #780912;
    --onos-faq-cat-active: #C1121F;
    --onos-faq-support-bg: #780912;
}

.onos-advanced-faq--purple {
    --onos-faq-primary: #6D28D9;
    --onos-faq-secondary: #5B21B6;
    --onos-faq-accent: #FDE68A;
    --onos-faq-hero-bg: #6D28D9;
    --onos-faq-button: #6D28D9;
    --onos-faq-button-hover: #4C1D95;
    --onos-faq-cat-active: #6D28D9;
    --onos-faq-support-bg: #4C1D95;
}

.onos-advanced-faq--dark {
    --onos-faq-bg: #0B1220;
    --onos-faq-section-bg: #0B1220;
    --onos-faq-card-bg: #111827;
    --onos-faq-heading: #F8FAFC;
    --onos-faq-body: #CBD5E1;
    --onos-faq-border: #253044;
    --onos-faq-search-bg: #111827;
    --onos-faq-search-color: #F8FAFC;
    --onos-faq-cat-inactive: #111827;
    --onos-faq-cat-inactive-text: #E2E8F0;
    --onos-faq-support-bg: #111827;
}

.onos-advanced-faq__inner {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
}

.onos-advanced-faq__hero {
    padding: 34px 28px;
    margin-bottom: 22px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--onos-faq-hero-bg), var(--onos-faq-secondary));
    color: var(--onos-faq-hero-text);
}

.onos-advanced-faq__title {
    margin: 0 0 10px;
    color: var(--onos-faq-hero-text);
    font-size: 34px;
    line-height: 1.18;
    font-weight: 800;
    letter-spacing: 0;
}

.onos-advanced-faq__subtitle {
    max-width: 780px;
    margin: 0 auto;
    color: var(--onos-faq-hero-text);
    opacity: 0.9;
    font-size: 16px;
    line-height: 1.65;
}

.onos-advanced-faq__hero[style*="left"] .onos-advanced-faq__subtitle {
    margin-left: 0;
}

.onos-advanced-faq__hero[style*="right"] .onos-advanced-faq__subtitle {
    margin-right: 0;
}

.onos-advanced-faq__tools {
    display: grid;
    gap: 16px;
    margin-bottom: 20px;
}

.onos-advanced-faq__search {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--onos-faq-border);
    border-radius: 8px;
    background: var(--onos-faq-search-bg);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.onos-advanced-faq__search-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--onos-faq-primary);
    color: #fff;
    font-weight: 800;
    flex: 0 0 auto;
}

.onos-advanced-faq__search-input {
    width: 100%;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--onos-faq-search-color);
    font-size: 16px;
}

.onos-advanced-faq__filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.onos-advanced-faq__filter {
    min-height: 40px;
    padding: 9px 14px;
    border: 1px solid var(--onos-faq-border);
    border-radius: 8px;
    background: var(--onos-faq-cat-inactive);
    color: var(--onos-faq-cat-inactive-text);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease;
}

.onos-advanced-faq__filter.is-active,
.onos-advanced-faq__filter:hover,
.onos-advanced-faq__filter:focus-visible {
    background: var(--onos-faq-cat-active);
    color: var(--onos-faq-cat-active-text);
    outline: 0;
    box-shadow: 0 10px 24px rgba(0, 87, 217, 0.18);
}

.onos-advanced-faq__list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.onos-advanced-faq--layout-two .onos-advanced-faq__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.onos-advanced-faq--layout-auto .onos-advanced-faq__list {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.onos-advanced-faq__item {
    overflow: hidden;
    border: 1px solid var(--onos-faq-border);
    border-radius: 8px;
    background: var(--onos-faq-card-bg);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.onos-advanced-faq__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    min-height: 62px;
    padding: 18px 20px;
    border: 0;
    background: transparent;
    color: var(--onos-faq-heading);
    cursor: pointer;
    text-align: left;
}

.onos-advanced-faq__question:focus-visible {
    outline: 3px solid var(--onos-faq-primary);
    outline-offset: -3px;
}

.onos-advanced-faq__question-text {
    font-size: 16px;
    line-height: 1.45;
    font-weight: 800;
}

.onos-advanced-faq__chevron {
    position: relative;
    width: 22px;
    height: 22px;
    flex: 0 0 22px;
    color: var(--onos-faq-icon);
}

.onos-advanced-faq__chevron::before,
.onos-advanced-faq__chevron::after {
    content: "";
    position: absolute;
    top: 10px;
    width: 12px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform var(--onos-faq-duration) ease;
}

.onos-advanced-faq__chevron::before {
    left: 1px;
    transform: rotate(45deg);
}

.onos-advanced-faq__chevron::after {
    right: 1px;
    transform: rotate(-45deg);
}

.onos-advanced-faq__item.is-open .onos-advanced-faq__chevron::before {
    transform: rotate(-45deg);
}

.onos-advanced-faq__item.is-open .onos-advanced-faq__chevron::after {
    transform: rotate(45deg);
}

.onos-advanced-faq__answer-wrap {
    animation: onosFaqReveal var(--onos-faq-duration) ease;
}

.onos-advanced-faq[data-animation="fade"] .onos-advanced-faq__answer-wrap {
    animation-name: onosFaqFade;
}

.onos-advanced-faq[data-animation="fade-slide"] .onos-advanced-faq__answer-wrap {
    animation-name: onosFaqReveal;
}

.onos-advanced-faq__answer {
    padding: 0 20px 20px;
    color: var(--onos-faq-body);
    font-size: 15px;
    line-height: 1.7;
}

.onos-advanced-faq__answer p:last-child {
    margin-bottom: 0;
}

.onos-advanced-faq__empty {
    margin-top: 18px;
    padding: 34px 24px;
    border: 1px dashed var(--onos-faq-border);
    border-radius: 8px;
    background: var(--onos-faq-card-bg);
    text-align: center;
}

.onos-advanced-faq__empty-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 10px;
    border-radius: 50%;
    background: var(--onos-faq-accent);
    color: var(--onos-faq-heading);
    font-weight: 900;
}

.onos-advanced-faq__empty h3 {
    margin: 0 0 8px;
    color: var(--onos-faq-heading);
}

.onos-advanced-faq__empty p {
    margin: 0;
}

.onos-advanced-faq__support {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-top: 24px;
    padding: 28px;
    border-radius: 8px;
    background: var(--onos-faq-support-bg);
    color: var(--onos-faq-support-text);
}

.onos-advanced-faq__support-title {
    margin: 0 0 8px;
    color: var(--onos-faq-support-text);
    font-size: 24px;
    line-height: 1.25;
}

.onos-advanced-faq__support-text {
    max-width: 720px;
    margin: 0;
    color: var(--onos-faq-support-text);
    opacity: 0.9;
}

.onos-advanced-faq__support-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 12px 18px;
    border-radius: 8px;
    background: var(--onos-faq-support-button);
    color: var(--onos-faq-support-button-text);
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
    transition: transform 180ms ease, background 180ms ease;
}

.onos-advanced-faq__support-button:hover,
.onos-advanced-faq__support-button:focus-visible {
    transform: translateY(-1px);
    color: var(--onos-faq-support-button-text);
}

@keyframes onosFaqReveal {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes onosFaqFade {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@media (max-width: 767px) {
    .onos-advanced-faq__hero {
        padding: 26px 18px;
    }

    .onos-advanced-faq__title {
        font-size: 26px;
    }

    .onos-advanced-faq--layout-two .onos-advanced-faq__list,
    .onos-advanced-faq--layout-auto .onos-advanced-faq__list {
        grid-template-columns: 1fr;
    }

    .onos-advanced-faq__support {
        align-items: stretch;
        flex-direction: column;
    }

    .onos-advanced-faq__support-button {
        width: 100%;
    }
}