/**
 * Qbank AI 해설 공통 스타일
 *
 * AI 해설과 기본 해설을 탭으로 표시하는 스타일
 * qbanktest의 마크다운 렌더링 스타일 적용
 *
 * @author OFFICE HUB
 * @version 2.0
 */

/* ========================================
   해설 카드 레이아웃
   ======================================== */

/* 해설 카드 */
.해설카드 {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
}

.해설카드 .card-header {
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    border-radius: 12px 12px 0 0;
}

.해설카드 .card-body {
    padding: 1.25rem;
}

/* ========================================
   해설 탭 스타일
   ======================================== */

/* 해설 탭 그룹 */
.해설탭그룹 {
    display: flex;
    gap: 0.5rem;
}

/* 해설 탭 버튼 */
.해설탭 {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 500;
}

.해설탭:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.해설탭.active {
    background: white;
    color: #4f46e5;
    border-color: white;
    font-weight: 700;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.해설탭 i {
    font-size: 1rem;
}

/* ========================================
   해설 내용 컨테이너
   ======================================== */

/* 해설 내용 */
.해설내용 {
    animation: fadeInUp 0.3s ease-out;
}

.해설내용.d-none {
    display: none !important;
}

/* AI 해설 탭만 패딩 적용 */
#AI해설1, #AI해설2, #AI해설3, #AI해설4, #AI해설5,
#AI해설6, #AI해설7, #AI해설8, #AI해설9, #AI해설10,
[id^="AI해설"] {
    padding: 1.25rem;
    line-height: 1.8;
}

/* ========================================
   AI 해설 헤더
   ======================================== */

/* AI 해설 헤더 */
.ai-explanation-header {
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #e5e7eb;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ai-explanation-header i {
    font-size: 1.25rem;
    color: #6366f1;
}

.ai-explanation-header strong {
    color: #4f46e5;
    font-size: 1.05rem;
    font-weight: 700;
}

/* AI 모델 배지 */
.ai-model-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 6px;
    margin-left: 0.5rem;
    border: 1px solid #e2e8f0;
    font-size: 0.75rem;
    font-weight: 600;
    color: #475569;
}

.ai-model-badge img {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    object-fit: cover;
}

/* ========================================
   AI 해설 텍스트 스타일 (마크다운 렌더링)
   ======================================== */

/* AI 해설 컨테이너 */
.ai-explanation-content {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #374151;
    line-height: 1.8;
    font-size: 0.95rem;
    animation: slideIn 0.3s ease-out;
}

/* 제목 스타일 (H1-H6) */
.ai-explanation-content h1,
.ai-explanation-content h2,
.ai-explanation-content h3,
.ai-explanation-content h4,
.ai-explanation-content h5,
.ai-explanation-content h6 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    line-height: 1.4;
    color: #1f2937;
}

.ai-explanation-content h1:first-child,
.ai-explanation-content h2:first-child,
.ai-explanation-content h3:first-child {
    margin-top: 0;
}

.ai-explanation-content h2 {
    font-size: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e5e7eb;
    color: #6366f1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ai-explanation-content h2::before {
    content: "📌";
    font-size: 1.1rem;
}

.ai-explanation-content h3 {
    font-size: 1.1rem;
    color: #4f46e5;
    padding-left: 0.75rem;
    border-left: 3px solid #6366f1;
}

.ai-explanation-content h4 {
    font-size: 1rem;
    color: #6b7280;
}

/* 문단 스타일 */
.ai-explanation-content p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.ai-explanation-content p:last-child {
    margin-bottom: 0;
}

/* 강조 텍스트 (Bold) */
.ai-explanation-content strong {
    font-weight: 700;
    color: #1f2937;
    background: linear-gradient(to right, #fef3c7 0%, transparent 100%);
    padding: 0.15rem 0.25rem;
    border-radius: 3px;
}

/* 이탤릭 */
.ai-explanation-content em {
    font-style: italic;
    color: #6b7280;
}

/* ========================================
   리스트 스타일
   ======================================== */

/* 리스트 공통 */
.ai-explanation-content ul,
.ai-explanation-content ol {
    margin: 1rem 0;
    padding-left: 1.75rem;
    line-height: 1.8;
}

/* 순서 없는 리스트 */
.ai-explanation-content ul {
    list-style-type: none;
}

.ai-explanation-content ul li {
    position: relative;
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
}

.ai-explanation-content ul li::before {
    content: "▸";
    position: absolute;
    left: -1.25rem;
    color: #6366f1;
    font-weight: 700;
    font-size: 1.1rem;
}

/* 순서 있는 리스트 */
.ai-explanation-content ol {
    counter-reset: list-counter;
}

.ai-explanation-content ol li {
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
    counter-increment: list-counter;
}

.ai-explanation-content ol li::marker {
    color: #6366f1;
    font-weight: 700;
}

/* 중첩 리스트 */
.ai-explanation-content ul ul,
.ai-explanation-content ol ul,
.ai-explanation-content ul ol,
.ai-explanation-content ol ol {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

/* ========================================
   코드 블록 스타일
   ======================================== */

/* 인라인 코드 */
.ai-explanation-content code {
    background: #f3f4f6;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
    font-size: 0.875rem;
    color: #dc2626;
    border: 1px solid #e5e7eb;
}

/* 코드 블록 */
.ai-explanation-content pre {
    background: #1f2937;
    color: #f9fafb;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid #374151;
}

.ai-explanation-content pre code {
    background: transparent;
    padding: 0;
    border: none;
    color: #f9fafb;
    font-size: 0.875rem;
}

/* ========================================
   기타 마크다운 요소
   ======================================== */

/* 인용구 */
.ai-explanation-content blockquote {
    margin: 1rem 0;
    padding: 1rem 1.25rem;
    background: #f0f9ff;
    border-left: 4px solid #3b82f6;
    border-radius: 0 8px 8px 0;
    color: #1e40af;
    font-style: italic;
}

.ai-explanation-content blockquote p {
    margin: 0;
}

/* 수평선 */
.ai-explanation-content hr {
    margin: 1.5rem 0;
    border: none;
    border-top: 2px solid #e5e7eb;
}

/* 테이블 */
.ai-explanation-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.9rem;
    border-radius: 8px;
    overflow: hidden;
}

.ai-explanation-content th,
.ai-explanation-content td {
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    text-align: left;
}

.ai-explanation-content th {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
}

.ai-explanation-content tr:nth-child(even) {
    background: #f9fafb;
}

/* 링크 */
.ai-explanation-content a {
    color: #3b82f6;
    text-decoration: underline;
    transition: color 0.2s;
}

.ai-explanation-content a:hover {
    color: #2563eb;
}

/* 이미지 */
.ai-explanation-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 체크박스 리스트 */
.ai-explanation-content input[type="checkbox"] {
    margin-right: 0.5rem;
}

/* ========================================
   섹션별 특별 스타일
   ======================================== */

/* 정답 섹션 (첫 번째 strong) */
.ai-explanation-content > strong:first-of-type {
    display: block;
    background: #ecfdf5;
    border-left: 4px solid #10b981;
    padding: 0.75rem 1rem;
    border-radius: 0 8px 8px 0;
    margin-bottom: 1rem;
    color: #059669;
}

/* 핵심 개념 섹션 */
.ai-explanation-content > strong:last-of-type {
    display: block;
    background: #eff6ff;
    border-left: 4px solid #3b82f6;
    padding: 0.75rem 1rem;
    border-radius: 0 8px 8px 0;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: #2563eb;
}

/* ========================================
   로딩 상태
   ======================================== */

/* 로딩 스피너 */
.ai-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: #6b7280;
}

.ai-loading .spinner-border {
    width: 2rem;
    height: 2rem;
    border-width: 0.25rem;
    margin-bottom: 1rem;
    color: #6366f1;
}

/* ========================================
   애니메이션
   ======================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

/* ========================================
   반응형 디자인
   ======================================== */

@media (max-width: 768px) {
    /* 모바일: 카드 패딩 축소 */
    .해설카드 .card-body {
        padding: 1rem;
    }

    .해설내용 {
        padding: 1rem;
    }

    /* 모바일: 탭 크기 조정 */
    .해설탭그룹 {
        gap: 0.375rem;
    }

    .해설탭 {
        padding: 0.25rem 0.625rem;
        font-size: 0.8125rem;
    }

    /* 모바일: 텍스트 크기 최적화 */
    .ai-explanation-content {
        font-size: 0.9rem;
        line-height: 1.7;
    }

    .ai-explanation-content h2 {
        font-size: 1.1rem;
    }

    .ai-explanation-content h3 {
        font-size: 1rem;
    }

    /* 모바일: 리스트 간격 축소 */
    .ai-explanation-content ul,
    .ai-explanation-content ol {
        padding-left: 1.5rem;
    }

    /* 모바일: 테이블 스크롤 */
    .ai-explanation-content table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    /* 모바일: AI 헤더 */
    .ai-explanation-header {
        font-size: 0.95rem;
    }

    .ai-model-badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.5rem;
    }
}

@media (max-width: 576px) {
    /* 초소형 화면: 추가 최적화 */
    .해설카드 .card-body {
        padding: 0.75rem;
    }

    .해설내용 {
        padding: 0.75rem;
    }

    .ai-explanation-content {
        font-size: 0.875rem;
    }

    .ai-explanation-content h2 {
        font-size: 1rem;
    }
}

/* ========================================
   프린트 스타일
   ======================================== */

@media print {
    .해설탭그룹 {
        display: none;
    }

    .해설카드 {
        box-shadow: none;
        border: 1px solid #000;
    }

    .ai-explanation-content {
        color: #000;
    }

    .ai-explanation-content code {
        border: 1px solid #000;
    }

    .ai-explanation-content pre {
        background: #fff;
        color: #000;
        border: 1px solid #000;
    }
}

/* ========================================
   다크 모드 (선택사항)
   ======================================== */

@media (prefers-color-scheme: dark) {
    .해설카드 {
        background: #1f2937;
        border-color: #374151;
    }

    .ai-explanation-content {
        color: #d1d5db;
    }

    .ai-explanation-content h1,
    .ai-explanation-content h2,
    .ai-explanation-content h3,
    .ai-explanation-content h4,
    .ai-explanation-content h5,
    .ai-explanation-content h6 {
        color: #f3f4f6;
    }

    .ai-explanation-content strong {
        color: #f3f4f6;
        background: linear-gradient(to right, #78350f 0%, transparent 100%);
    }

    .ai-explanation-content code {
        background: #374151;
        color: #fca5a5;
        border-color: #4b5563;
    }

    .ai-explanation-content blockquote {
        background: #1e3a8a;
        color: #93c5fd;
        border-left-color: #3b82f6;
    }

    .ai-explanation-content th {
        background: #374151;
        color: #f3f4f6;
    }

    .ai-explanation-content tr:nth-child(even) {
        background: #374151;
    }

    .ai-model-badge {
        background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
        border-color: #475569;
        color: #e2e8f0;
    }
}