@charset "utf-8";

/**
 * FAQ 스킨 - Clean Portal Editorial (Bootstrap 5)
 *
 * 에디토리얼/매거진 톤: 순차 번호 패턴, 히어로 검색, 시맨틱 토큰
 * --gb-* 글로벌 변수 참조, --faq-* 스킨 전용 변수
 * 접두사: faq-*
 *
 * @version 20260302-003
 */

/* ============================================
   1. FAQ 변수 (--faq-*)
   ============================================ */

:root {
    /* 아코디언 */
    --faq-accordion-active-bg: rgba(37, 99, 235, 0.04);
    --faq-accordion-body-bg: var(--gb-surface-sunken);
    --faq-accordion-border: var(--gb-border-default);

    /* 인터랙션 */
    --faq-focus-ring: rgba(37, 99, 235, 0.12);
    --faq-hover-bg: rgba(37, 99, 235, 0.03);

    /* 번호 배지 */
    --faq-num-size: 1.75rem;
    --faq-num-glow: rgba(37, 99, 235, 0.25);

    /* 관리 버튼 */
    --faq-admin-shadow: rgba(0, 0, 0, 0.1);

    /* 빈 상태 */
    --faq-empty-icon: var(--gb-gray-300);
}

/* ============================================
   2. 히어로 검색 (faq-hero)
   ============================================ */

.faq-hero {
    background: var(--gb-surface-sunken);
    border-radius: var(--gb-radius-lg);
    padding: var(--gb-space-8, 3rem) var(--gb-space-6);
    text-align: center;
    margin-bottom: var(--gb-space-5);
    animation: faq-fadeInUp 0.4s ease-out;
}

.faq-hero-title {
    font-size: 1.5rem;
    font-weight: var(--gb-font-bold);
    color: var(--gb-text-primary);
    margin-bottom: var(--gb-space-1);
}

.faq-hero-sub {
    font-size: var(--gb-font-sm);
    color: var(--gb-text-secondary);
    margin-bottom: var(--gb-space-4);
}

.faq-hero-search {
    max-width: 32rem;
    margin: 0 auto;
    position: relative;
}

.faq-hero-search .faq-search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gb-text-tertiary);
    font-size: var(--gb-font-sm);
    pointer-events: none;
    z-index: 1;
}

.faq-hero-search .form-control {
    padding-left: 2.5rem;
    padding-right: 5.5rem;
    border-radius: 50rem;
    height: 2.75rem;
    border-color: var(--gb-border-default);
    background-color: var(--gb-surface-card);
}

.faq-hero-search .form-control:focus {
    border-color: var(--gb-primary);
    box-shadow: 0 0 0 3px var(--faq-focus-ring);
}

.faq-hero-search .form-control::placeholder {
    color: var(--gb-text-tertiary);
}

.faq-hero-search .btn {
    position: absolute;
    right: 0;
    top: 0;
    height: 2.75rem;
    border-radius: 50rem;
    padding: 0 1.25rem;
    font-size: var(--gb-font-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   3. 카테고리 (faq-category, faq-cate-link)
   ============================================ */

.faq-category {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gb-space-2);
    margin-bottom: var(--gb-space-5);
    animation: faq-fadeInUp 0.4s ease-out 0.05s both;
}

.faq-cate-link {
    display: inline-block;
    padding: var(--gb-space-1) var(--gb-space-3);
    border-radius: 9999px;
    font-size: var(--gb-font-sm);
    font-weight: var(--gb-font-medium);
    color: var(--gb-text-secondary);
    background: var(--gb-surface-raised);
    border: 1px solid transparent;
    text-decoration: none;
    transition: all var(--gb-transition);
}

.faq-cate-link:hover {
    color: var(--gb-primary);
    background: var(--gb-primary-light);
    border-color: var(--gb-primary);
    transform: translateY(-1px);
}

.faq-cate-link.active {
    color: var(--gb-text-on-primary);
    background: var(--gb-primary);
    border-color: var(--gb-primary);
}

/* ============================================
   4. 정보바 (faq-info-bar)
   ============================================ */

.faq-info-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--gb-space-2);
    padding-bottom: var(--gb-space-3);
    margin-bottom: var(--gb-space-4);
    border-bottom: 1px solid var(--gb-border-default);
    font-size: var(--gb-font-sm);
    color: var(--gb-text-secondary);
    animation: faq-fadeInUp 0.4s ease-out 0.1s both;
}

.faq-info-bar strong {
    color: var(--gb-text-primary);
    font-weight: var(--gb-font-semibold);
}

/* ============================================
   5. 아코디언 (faq-accordion, faq-num, faq-a-label)
   ============================================ */

.faq-accordion {
    border-radius: var(--gb-radius-lg);
    overflow: hidden;
    border: 1px solid var(--gb-border-default);
}

.faq-accordion .accordion-item {
    border-color: var(--faq-accordion-border);
    border-left: none;
    border-right: none;
    animation: faq-fadeInUp 0.35s ease-out both;
    animation-delay: calc(var(--faq-i, 0) * 60ms);
}

.faq-accordion .accordion-item:first-child {
    border-top: none;
}

.faq-accordion .accordion-item:last-child {
    border-bottom: none;
}

/* 아코디언 버튼 */
.faq-accordion .accordion-button {
    font-size: var(--gb-font-sm);
    font-weight: var(--gb-font-medium);
    color: var(--gb-text-primary);
    padding: var(--gb-space-4) var(--gb-space-5);
    gap: var(--gb-space-3);
    transition: background-color var(--gb-transition), color var(--gb-transition);
}

.faq-accordion .accordion-button:hover {
    background-color: var(--faq-hover-bg);
}

.faq-accordion .accordion-button:not(.collapsed) {
    background-color: var(--faq-accordion-active-bg);
    color: var(--gb-text-primary);
    font-weight: var(--gb-font-semibold);
    box-shadow: none;
}

.faq-accordion .accordion-button:focus-visible {
    box-shadow: 0 0 0 3px var(--faq-focus-ring);
    outline: none;
    z-index: 1;
}

.faq-accordion .accordion-button::after {
    transition: transform 0.25s ease;
}

/* 순차 번호 배지 */
.faq-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: var(--faq-num-size);
    height: var(--faq-num-size);
    border-radius: var(--gb-radius-sm);
    background: var(--gb-primary);
    color: var(--gb-text-on-primary);
    font-size: 0.6875rem;
    font-weight: var(--gb-font-bold);
    flex-shrink: 0;
    letter-spacing: 0.02em;
    line-height: 1;
}

.faq-accordion .accordion-button:not(.collapsed) .faq-num {
    box-shadow: 0 2px 6px var(--faq-num-glow);
}

/* A 라벨 */
.faq-a-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: var(--faq-num-size);
    height: var(--faq-num-size);
    border-radius: var(--gb-radius-sm);
    background: var(--gb-success);
    color: var(--gb-text-on-primary);
    font-size: 0.6875rem;
    font-weight: var(--gb-font-bold);
    flex-shrink: 0;
    margin-right: var(--gb-space-3);
    vertical-align: top;
    line-height: 1;
}

/* 아코디언 본문 */
.faq-accordion .accordion-body {
    font-size: var(--gb-font-sm);
    line-height: var(--gb-leading-relaxed);
    color: var(--gb-text-secondary);
    padding: var(--gb-space-5);
    background-color: var(--faq-accordion-body-bg);
    border-top: 1px dashed var(--gb-border-subtle);
}

.faq-accordion .accordion-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--gb-radius);
}

/* ============================================
   6. 빈 상태 (faq-empty)
   ============================================ */

.faq-empty {
    font-size: var(--gb-font-sm);
    color: var(--gb-text-tertiary);
    background-color: var(--gb-surface-sunken);
    border: 1px dashed var(--gb-border-default);
    border-radius: var(--gb-radius-lg);
    padding: var(--gb-space-8, 3rem) var(--gb-space-6);
    text-align: center;
}

.faq-empty::before {
    content: "\f059";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    display: block;
    font-size: 2rem;
    color: var(--faq-empty-icon);
    margin-bottom: var(--gb-space-3);
}

.faq-empty a {
    color: var(--gb-primary);
    font-weight: var(--gb-font-medium);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.faq-empty a:hover {
    color: var(--gb-primary-dark, #1d4ed8);
}

/* ============================================
   7. 관리 버튼 (faq-admin-btn — info-bar 내부)
   ============================================ */

.faq-admin-btn {
    font-size: var(--gb-font-xs);
    transition: all var(--gb-transition);
}

.faq-admin-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px var(--faq-admin-shadow);
}

/* ============================================
   8. 페이징 (faq-paging)
   ============================================ */

.faq-paging {
    margin-top: var(--gb-space-5);
}

/* ============================================
   9. 애니메이션 (faq-fadeInUp, staggered)
   ============================================ */

@keyframes faq-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   10. 다크 모드 [data-theme="dark"]
   ============================================ */

/* 10-1. 스킨 변수 다크 오버라이드 */
[data-theme="dark"] {
    --faq-accordion-active-bg: rgba(96, 165, 250, 0.08);
    --faq-focus-ring: rgba(96, 165, 250, 0.2);
    --faq-hover-bg: rgba(96, 165, 250, 0.06);
    --faq-num-glow: rgba(96, 165, 250, 0.3);
    --faq-admin-shadow: rgba(0, 0, 0, 0.3);
    --faq-empty-icon: var(--gb-gray-600);
}

/* 10-2. Bootstrap accordion CSS 변수 다크 리셋 */
[data-theme="dark"] .faq-accordion {
    --bs-accordion-bg: var(--gb-surface-card);
    --bs-accordion-color: var(--gb-text-primary);
    --bs-accordion-border-color: var(--gb-border-default);
    --bs-accordion-btn-bg: var(--gb-surface-card);
    --bs-accordion-btn-color: var(--gb-text-primary);
    --bs-accordion-active-bg: var(--faq-accordion-active-bg);
    --bs-accordion-active-color: var(--gb-text-primary);
    --bs-accordion-btn-focus-box-shadow: 0 0 0 3px var(--faq-focus-ring);
}

/* 10-3. 아코디언 버튼 다크 (Bootstrap 변수 보강) */
[data-theme="dark"] .faq-accordion .accordion-button {
    color: var(--gb-text-primary);
    background-color: var(--gb-surface-card);
}

[data-theme="dark"] .faq-accordion .accordion-button:not(.collapsed) {
    background-color: var(--faq-accordion-active-bg);
    color: var(--gb-text-primary);
}

/* 10-4. 아코디언 chevron SVG 반전 */
[data-theme="dark"] .faq-accordion .accordion-button::after {
    filter: invert(1) grayscale(100%) brightness(2);
}

/* 10-5. 번호 배지 다크 glow — --faq-num-glow 다크 오버라이드로 자동 대응 */

/* 10-6. 히어로 검색 인풋 다크 */
[data-theme="dark"] .faq-hero-search .form-control {
    background-color: var(--gb-surface-raised);
    color: var(--gb-text-primary);
    border-color: var(--gb-border-default);
}

/* ============================================
   11. 반응형 (992, 768, 576px)
   ============================================ */

@media (max-width: 992px) {
    .faq-hero {
        padding: var(--gb-space-6) var(--gb-space-4);
    }

    .faq-hero-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 768px) {
    .faq-hero {
        padding: var(--gb-space-5) var(--gb-space-4);
    }

    .faq-hero-title {
        font-size: 1.125rem;
    }

    .faq-accordion .accordion-button {
        padding: var(--gb-space-3) var(--gb-space-4);
    }

    .faq-accordion .accordion-body {
        padding: var(--gb-space-4);
    }
}

@media (max-width: 576px) {
    .faq-hero {
        padding: var(--gb-space-4) var(--gb-space-3);
        margin-bottom: var(--gb-space-4);
    }

    .faq-hero-sub {
        font-size: var(--gb-font-xs);
    }

    .faq-category {
        gap: var(--gb-space-1);
    }

    .faq-cate-link {
        font-size: var(--gb-font-xs);
        padding: 0.25rem 0.625rem;
    }

    .faq-accordion .accordion-button {
        font-size: var(--gb-font-xs);
        padding: var(--gb-space-3);
        gap: var(--gb-space-2);
    }

    .faq-accordion .accordion-body {
        font-size: var(--gb-font-xs);
        padding: var(--gb-space-3);
    }

    .faq-num,
    .faq-a-label {
        --faq-num-size: 1.5rem;
        font-size: 0.625rem;
    }
}

/* ============================================
   12. 모션 감소
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    .faq-hero,
    .faq-category,
    .faq-info-bar,
    .faq-accordion .accordion-item {
        animation: none;
    }

    .faq-cate-link:hover,
    .faq-admin-btn:hover,
    .faq-hero-search .btn:hover {
        transform: none;
    }

    .faq-accordion .accordion-button,
    .faq-accordion .accordion-button::after,
    .faq-cate-link,
    .faq-admin-btn,
    .faq-hero-search .btn {
        transition: none;
    }
}