/* ============================================
   cloud_b1_nimbus — FAQ Sub-page
   Content-only (shared styles loaded via style.css)
   ============================================ */

/* --- Page Hero --- */
.crr-page-hero {
    padding-top: calc(var(--header-h) + 48px);
    padding-bottom: 48px;
    background: var(--bg-white);
    text-align: center;
}

.crr-page-heading {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.crr-page-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* --- FAQ Section --- */
.crr-faq-section {
    padding: var(--section-py) 0;
    background-color: var(--bg-base);
}

.crr-faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.crr-faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.crr-faq-item.is-expanded {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.crr-faq-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    text-align: left;
    gap: 16px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.crr-faq-trigger:hover {
    background-color: var(--bg-muted);
}

.crr-faq-question {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

.crr-faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    position: relative;
    border-radius: 50%;
    background: var(--bg-base);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
}

.crr-faq-icon::before,
.crr-faq-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background: var(--text-secondary);
    transition: all var(--transition-base);
}

.crr-faq-icon::before {
    width: 10px;
    height: 2px;
    transform: translate(-50%, -50%);
}

.crr-faq-icon::after {
    width: 2px;
    height: 10px;
    transform: translate(-50%, -50%);
}

.crr-faq-item.is-expanded .crr-faq-icon {
    border-color: var(--primary-color);
    background: var(--primary-color);
}

.crr-faq-item.is-expanded .crr-faq-icon::before {
    background: var(--text-inverse);
}

.crr-faq-item.is-expanded .crr-faq-icon::after {
    background: var(--text-inverse);
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
}

.crr-faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0 24px;
}

.crr-faq-item.is-expanded .crr-faq-body {
    max-height: 800px;
    padding: 0 24px 24px;
}

.crr-faq-body p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    overflow-wrap: break-word;
    word-break: break-word;
}

/* --- Details-based FAQ items (FAQ 6-20) --- */
details.crr-faq-item {
    max-width: 780px;
    margin: 0 auto 12px;
}

details.crr-faq-item summary.crr-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    transition: background-color var(--transition-fast);
}

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

details.crr-faq-item summary.crr-faq-question::after {
    content: "+";
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--text-muted);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    transition: all var(--transition-base);
}

details.crr-faq-item[open] summary.crr-faq-question::after {
    content: "\2212";
    color: var(--text-inverse);
    background: var(--primary-color);
    border-color: var(--primary-color);
}

details.crr-faq-item summary.crr-faq-question:hover {
    background-color: var(--bg-muted);
}

details.crr-faq-item .crr-faq-answer {
    padding: 0 24px 24px;
}

details.crr-faq-item .crr-faq-answer p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    overflow-wrap: break-word;
    word-break: break-word;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .crr-page-hero {
        padding-top: calc(var(--header-h) + 32px);
        padding-bottom: 32px;
    }

    .crr-page-heading {
        font-size: 1.875rem;
    }

    .crr-page-intro {
        font-size: 1rem;
    }

    .crr-faq-trigger {
        padding: 16px 20px;
    }

    .crr-faq-body {
        padding: 0 20px;
    }

    .crr-faq-item.is-expanded .crr-faq-body {
        padding: 0 20px 20px;
    }

    details.crr-faq-item summary.crr-faq-question {
        padding: 16px 20px;
        font-size: 0.9375rem;
    }

    details.crr-faq-item .crr-faq-answer {
        padding: 0 20px 20px;
    }
}

@media (max-width: 480px) {
    .crr-page-heading {
        font-size: 1.625rem;
    }
}