/* Lesson 2 전용 스타일 - 딥페이크 식별과 대응 - 교육자료 스타일 */

/* 기본 색상 변수 */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --warning-color: #f39c12;
    --success-color: #27ae60;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e1e8ed;
    --text-primary: #2c3e50;
    --text-secondary: #5a6c7d;
    --text-muted: #8492a6;
}

/* 딥페이크 설명 기본 스타일 */
.deepfake-explanation {
    margin: 2rem 0;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 12px;
    border-left: 4px solid var(--secondary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.deepfake-explanation h3 {
    color: var(--primary-color);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.deepfake-explanation h3::before {
    content: '📚';
    font-size: 1.4rem;
}

.deepfake-explanation .description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
    margin: 0;
}

/* 딥페이크 설명 섹션 */
.technology-details {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
}

.technology-details h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 700;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--secondary-color);
}

.gan-explanation {
    margin-top: 2rem;
}

.gan-process {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 2rem;
    margin: 2rem 0;
}

.gan-component {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.gan-component:hover {
    border-color: var(--secondary-color);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.15);
}

.component-icon {
    text-align: center;
    margin-bottom: 1rem;
}

.component-icon i {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.gan-component h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 600;
}

.gan-component p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-align: center;
    font-size: 1rem;
}

.gan-component ul {
    list-style: none;
    padding: 0;
}

.gan-component li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.gan-component li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.vs-symbol {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-align: center;
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 50%;
    border: 2px solid var(--accent-color);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.result-box {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--secondary-color);
    border-radius: 12px;
    color: white;
    text-align: center;
}

.result-box h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.result-box p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.95;
}

/* 딥페이크 타입 그리드 */
.type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.type-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.type-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    transform: translateY(-2px);
    border-color: var(--secondary-color);
}

.type-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    display: block;
    text-align: center;
}

.type-card h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 600;
}

.type-card > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 0.95rem;
}

.examples {
    background: var(--light-bg);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    border-left: 3px solid var(--secondary-color);
}

.examples strong {
    color: var(--primary-color);
    font-size: 1rem;
    display: block;
    margin-bottom: 0.8rem;
}

.examples ul {
    list-style: none;
    padding: 0;
}

.examples li {
    padding: 0.3rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.2rem;
    font-size: 0.9rem;
}

.examples li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* 생성 과정 */
.creation-process {
    margin: 3rem 0;
}

.creation-process h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.step {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    position: relative;
    border: 1px solid var(--border-color);
}

.step:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.step-number {
    position: absolute;
    top: -12px;
    left: 20px;
    background: var(--secondary-color);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
}

.step-content h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    margin-top: 0.5rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 탐지 방법 */
.detection-methods {
    margin: 3rem 0;
}

.method-category {
    margin: 2rem 0;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-left: 4px solid var(--warning-color);
}

.method-category h3 {
    color: var(--primary-color);
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 700;
}

.method-category h3 i {
    color: var(--warning-color);
    font-size: 1.8rem;
}

.detection-tips {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.tip-item {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.tip-item:hover {
    border-color: var(--secondary-color);
    background: var(--card-bg);
}

.tip-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 50px;
    text-align: center;
}

.tip-content h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.tip-content ul {
    list-style: none;
    padding: 0;
}

.tip-content li {
    padding: 0.4rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.95rem;
}

.tip-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* 실전 연습 */
.practical-exercise {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    margin: 3rem 0;
    border: 1px solid var(--border-color);
}

.practical-exercise h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 700;
}

.checklist-container h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.checklist {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    cursor: pointer;
    padding: 15px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    transition: all 0.3s ease;
    color: white;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 70px; /* 최소 높이 고정 */
    box-sizing: border-box;
}

.checklist-item:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 4px;
    position: relative;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.1);
    margin-top: 2px; /* 텍스트와 정렬 맞추기 */
}

/* 체크리스트 텍스트 영역 스타일 개선 */
.checklist-item span:not(.checkmark) {
    flex: 1;
    line-height: 1.4;
    font-size: 0.95rem;
    word-break: keep-all;
    overflow-wrap: break-word;
}

/* 각 컬럼의 항목들 높이 통일 */
.checklist-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
    height: 100%;
}

.checklist-column {
    display: flex;
    flex-direction: column;
    min-height: 300px; /* 컬럼 최소 높이 설정 */
}

.checklist-column h4 {
    flex-shrink: 0;
    font-size: 1.3rem;
    margin-bottom: 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.2);
    padding: 15px;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    height: 60px; /* 제목 높이 고정 */
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 컬럼별 색상 스타일에 높이 관련 속성 추가 */
.checklist-column:nth-child(1) .checklist-item,
.checklist-column:nth-child(2) .checklist-item,
.checklist-column:nth-child(3) .checklist-item {
    min-height: 70px;
    display: flex;
    align-items: flex-start;
}

.checklist-column:nth-child(1) .checklist-item:hover,
.checklist-column:nth-child(2) .checklist-item:hover,
.checklist-column:nth-child(3) .checklist-item:hover {
    transform: translateY(-2px);
}

/* 모바일에서는 높이 조정 */
@media (max-width: 768px) {
    .checklist-item {
        min-height: 60px;
        padding: 12px;
        font-size: 0.9rem;
    }
    
    .checklist-column {
        min-height: 250px;
    }
    
    .checklist-column h4 {
        font-size: 1.1rem;
        padding: 12px;
        height: 50px;
    }
    
    .checklist-item span:not(.checkmark) {
        font-size: 0.85rem;
        line-height: 1.3;
    }
}

@media (max-width: 480px) {
    .checklist-item {
        min-height: 55px;
        padding: 10px;
    }
    
    .checklist-column {
        min-height: 220px;
    }
    
    .checklist-column h4 {
        height: 45px;
        font-size: 1rem;
    }
}

.checklist-item input[type="checkbox"] {
    margin-right: 1rem;
    transform: scale(1.2);
    accent-color: var(--secondary-color);
}

.checklist-result {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--warning-color);
    color: white;
    border-radius: 8px;
    text-align: center;
}

.checklist-result p {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

/* 체크리스트 결과 색상 */
.checklist-result.safe {
    background: var(--success-color) !important;
}

.checklist-result.warning {
    background: var(--warning-color) !important;
}

.checklist-result.danger {
    background: var(--accent-color) !important;
}

/* 기술적 도구 */
.technical-tools {
    margin: 3rem 0;
}

.technical-tools h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
}

.tool-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.tool-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.tool-category:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    border-color: var(--secondary-color);
}

.tool-category h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.tool-category h4 i {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.tool-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tool-item {
    background: var(--light-bg);
    padding: 1.2rem;
    border-radius: 8px;
    border-left: 3px solid var(--secondary-color);
}

.tool-item strong {
    color: var(--primary-color);
    font-size: 1rem;
    display: block;
    margin-bottom: 0.5rem;
}

.tool-item p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    font-size: 0.95rem;
}

/* 국내 대응 현황 */
.domestic-efforts h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
}

.effort-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.effort-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-top: 4px solid var(--secondary-color);
    transition: all 0.3s ease;
}

.effort-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    transform: translateY(-3px);
}

.effort-card h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.effort-card h4 i {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.effort-card ul {
    list-style: none;
    padding: 0;
}

.effort-card li {
    padding: 0.6rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.effort-card li:last-child {
    border-bottom: none;
}

.effort-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0.6rem;
    color: var(--secondary-color);
    font-weight: bold;
}

/* 개인 검증 방법 */
.diy-verification h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
}

.verification-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.verification-step {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    position: relative;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.verification-step:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    border-color: var(--secondary-color);
}

.verification-step .step-number {
    position: absolute;
    top: -12px;
    left: 20px;
    background: var(--secondary-color);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
}

.verification-step .step-content h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    margin-top: 0.5rem;
    font-weight: 600;
}

.verification-step .step-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.how-to {
    background: var(--light-bg);
    padding: 1rem;
    border-radius: 6px;
    border-left: 3px solid var(--secondary-color);
    margin-top: 1rem;
}

.how-to strong {
    color: var(--primary-color);
    font-size: 0.95rem;
}

/* 대응 시나리오 */
.response-scenarios {
    margin: 3rem 0;
}

.scenario-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    margin: 2rem 0;
    border-left: 4px solid var(--accent-color);
}

.scenario-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.scenario-card h3 i {
    color: var(--accent-color);
    font-size: 1.6rem;
}

.response-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.immediate-actions,
.follow-up-actions {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.immediate-actions h4,
.follow-up-actions h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    text-align: center;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
}

.immediate-actions ol {
    padding-left: 1.5rem;
}

.immediate-actions li {
    padding: 0.6rem 0;
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

.immediate-actions strong {
    color: var(--primary-color);
    font-weight: 600;
}

.follow-up-actions ul {
    list-style: none;
    padding: 0;
}

.follow-up-actions li {
    padding: 0.6rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.follow-up-actions li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* 예방 팁 */
.prevention-tips h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
}

.prevention-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.prevention-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-top: 4px solid var(--success-color);
    transition: all 0.3s ease;
    text-align: center;
}

.prevention-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    transform: translateY(-3px);
}

.prevention-card i {
    font-size: 2.5rem;
    color: var(--success-color);
    margin-bottom: 1.5rem;
    display: block;
}

.prevention-card h4 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.prevention-card ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.prevention-card li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.5;
    font-size: 0.95rem;
}

.prevention-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0.5rem;
    color: var(--success-color);
    font-weight: bold;
}

/* 레슨 요약 */
.lesson-summary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 2.5rem;
    border-radius: 12px;
    margin: 3rem 0;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.lesson-summary h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.summary-box {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 8px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.summary-box h4 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    color: #fff;
}

.summary-box ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.summary-box li {
    padding: 0.8rem 0;
    font-size: 1rem;
    position: relative;
    padding-left: 2rem;
    line-height: 1.6;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.summary-box li:last-child {
    border-bottom: none;
}

.summary-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0.8rem;
    font-size: 1.1rem;
    color: #fff;
}

/* 네비게이션 */
.lesson-navigation {
    background: var(--light-bg);
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.nav-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    gap: 2rem;
}

.nav-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.2rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    max-width: 350px;
    border: none;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.nav-btn.prev {
    text-align: left;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.nav-btn.next {
    text-align: right;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.3);
}

.nav-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.nav-btn.next:hover {
    box-shadow: 0 8px 25px rgba(240, 147, 251, 0.4);
}

/* 진행률바 스타일 */
.progress-bar {
    background: rgba(255, 255, 255, 0.8);
    height: 12px;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    height: 100%;
    border-radius: 20px;
    transition: width 0.8s ease;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.progress-text {
    text-align: center;
    color: #667eea;
    font-weight: 700;
    font-size: 1.1rem;
    margin-top: 0.5rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.progress-text::before {
    content: '📊';
    font-size: 1.2rem;
}

.progress-bar {
    background: var(--border-color);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress {
    background: var(--secondary-color);
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.progress-text {
    text-align: center;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .gan-process {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .vs-symbol {
        font-size: 1.2rem;
        margin: 1rem auto;
        width: 50px;
        height: 50px;
    }
    
    .type-grid,
    .process-steps,
    .tool-categories,
    .effort-cards,
    .verification-steps,
    .prevention-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-btn {
        max-width: none;
        text-align: center;
    }
    
    .response-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .technology-details,
    .practical-exercise,
    .scenario-card {
        padding: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tip-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .lesson-summary {
        padding: 1.5rem;
    }
    
    .summary-box {
        padding: 1.5rem;
    }
}

/* 2. 딥페이크 식별 방법 - 새로운 디자인 */
.detection-methodology {
    max-width: 1200px;
    margin: 0 auto;
}

.method-overview {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 40px;
    color: white;
    text-align: center;
}

.overview-header h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.overview-header p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.detection-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 120px;
}

.flow-step:hover,
.flow-step.active {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.step-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.flow-step.active .step-icon {
    background: rgba(255, 255, 255, 0.3);
}

.flow-arrow {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: bold;
}

.detection-panels {
    margin-top: 40px;
}

.detection-panel {
    display: none;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
}

.detection-panel.active {
    display: block;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.panel-header h4 {
    font-size: 1.5rem;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.difficulty-indicator {
    display: flex;
    gap: 15px;
    align-items: center;
}

.difficulty-level {
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.difficulty-level.easy {
    background: #d4edda;
    color: #155724;
}

.difficulty-level.medium {
    background: #fff3cd;
    color: #856404;
}

.difficulty-level.advanced {
    background: #f8d7da;
    color: #721c24;
}

.accuracy-rate {
    background: #e3f2fd;
    color: #1565c0;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.detection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.detection-item {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    border-left: 5px solid #667eea;
    transition: all 0.3s ease;
    position: relative;
}

.detection-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.detection-item .item-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.item-content h5 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #333;
}

.item-content p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.detection-tips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tip {
    background: #e8f4fd;
    color: #1976d2;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.severity-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.severity-badge.high {
    background: #fff3cd;
    color: #856404;
}

.severity-badge.medium {
    background: #d4edda;
    color: #155724;
}

.severity-badge.critical {
    background: #f8d7da;
    color: #721c24;
}

/* 실전 체크리스트 */
.practical-checklist {
    margin-top: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 40px;
    color: white;
}

.checklist-header {
    text-align: center;
    margin-bottom: 40px;
}

.checklist-header h3 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.checklist-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

.checklist-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.checklist-column h4 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.2);
    padding: 15px;
    border-radius: 10px;
    color: white;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.checklist-items {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    cursor: pointer;
    padding: 15px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    transition: all 0.3s ease;
    color: white;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    min-height: 70px; /* 최소 높이 고정 */
    box-sizing: border-box;
}

.checklist-item:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 4px;
    position: relative;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.1);
    margin-top: 2px; /* 텍스트와 정렬 맞추기 */
}

.checklist-item input[type="checkbox"] {
    display: none;
}

.checklist-item input[type="checkbox"]:checked + .checkmark {
    background: #4caf50;
    border-color: #4caf50;
}

.checklist-item input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 14px;
}

.checklist-result {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.5s ease;
}

/* 위험도별 전체 배경색 변경 */
.checklist-result.safe {
    background: linear-gradient(135deg, #4caf50 0%, #81c784 100%);
    box-shadow: 0 10px 30px rgba(76, 175, 80, 0.3);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.checklist-result.caution {
    background: linear-gradient(135deg, #ff9800 0%, #ffb74d 100%);
    box-shadow: 0 10px 30px rgba(255, 152, 0, 0.3);
    border: 1px solid rgba(255, 152, 0, 0.3);
}

.checklist-result.danger {
    background: linear-gradient(135deg, #f44336 0%, #e57373 100%);
    box-shadow: 0 10px 30px rgba(244, 67, 54, 0.3);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.result-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.result-gauge {
    width: 100%;
    height: 20px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    overflow: hidden;
    margin: 20px 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.gauge-fill {
    height: 100%;
    background: linear-gradient(90deg, #4caf50, #ff9800, #f44336);
    border-radius: 10px;
    transition: width 0.5s ease, transform 0.3s ease;
    transform-origin: left center;
}

.result-advice {
    color: white;
}

.result-advice p {
    color: white;
    font-weight: 600;
    margin-bottom: 15px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.result-advice ul {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.result-advice li {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 15px;
    border-radius: 15px;
    font-size: 0.9rem;
    color: white;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.safe, #risk-level.safe { 
    color: #81c784; 
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}
.caution, #risk-level.caution { 
    color: #ffb74d; 
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}
.danger, #risk-level.danger { 
    color: #e57373; 
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

#suspicious-count {
    font-weight: bold;
    font-size: 1.2em;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

#risk-level {
    font-weight: bold;
    font-size: 1.2em;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    transition: color 0.3s ease;
}

/* 3. 기술적 탐지 도구 - 새로운 디자인 */
.detection-tools-hub {
    max-width: 1200px;
    margin: 0 auto;
}

.tools-overview {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 40px;
    color: white;
}

.overview-stats {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.stat-circle {
    text-align: center;
    position: relative;
}

.circle-progress {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #4caf50 0deg, #4caf50 var(--percent, 0deg), rgba(255, 255, 255, 0.2) var(--percent, 0deg));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    position: relative;
}

.circle-progress::before {
    content: '';
    position: absolute;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
}

.percentage {
    position: relative;
    z-index: 1;
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-circle p {
    font-size: 1rem;
    opacity: 0.9;
}

.tools-categories {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.category-tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 2px solid #e9ecef;
    overflow-x: auto;
}

.tab-btn {
    flex: 1;
    padding: 20px 15px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 150px;
}

.tab-btn:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.tab-btn.active {
    background: #667eea;
    color: white;
}

.category-content {
    padding: 40px;
}

.content-panel {
    display: none;
}

.content-panel.active {
    display: block;
}

.panel-title {
    text-align: center;
    margin-bottom: 40px;
}

.panel-title h3 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.panel-title p {
    font-size: 1.1rem;
    color: #666;
}

/* AI 탐지 시스템 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.tool-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    border-left: 5px solid #667eea;
    transition: all 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.tool-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.tool-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.tool-meta h4 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: #333;
}

.accuracy-badge {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.tool-description p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.tech-details {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag {
    background: #e3f2fd;
    color: #1976d2;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.tool-performance {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.perf-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.perf-label {
    min-width: 80px;
    font-size: 0.9rem;
    color: #666;
}

.perf-bar {
    flex: 1;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.perf-fill {
    height: 100%;
    background: linear-gradient(90deg, #4caf50, #2196f3);
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* 상용 도구 */
.commercial-tools-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.commercial-tool {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    border-left: 5px solid #667eea;
    transition: all 0.3s ease;
}

.commercial-tool:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.tool-brand {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.brand-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.brand-info h4 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: #333;
}

.tool-type {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.tool-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.spec-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.spec-label {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.spec-value {
    font-size: 1rem;
    color: #333;
    font-weight: 600;
}

.tool-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tag {
    background: #e3f2fd;
    color: #1976d2;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 개인 검증법 */
.personal-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.method-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    position: relative;
    transition: all 0.3s ease;
}

.method-card.easy {
    border-left: 5px solid #4caf50;
}

.method-card.medium {
    border-left: 5px solid #ff9800;
}

.method-card.advanced {
    border-left: 5px solid #f44336;
}

.method-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.method-number {
    position: absolute;
    top: -15px;
    left: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

.method-content {
    padding-top: 15px;
}

.method-content h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.method-content p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.method-steps {
    margin-bottom: 20px;
}

.step {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.step-num {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #667eea;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
}

.method-effectiveness {
    display: flex;
    align-items: center;
    gap: 10px;
}

.effectiveness-label {
    font-size: 0.9rem;
    color: #666;
    min-width: 50px;
}

.effectiveness-bar {
    flex: 1;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
}

.effectiveness-fill {
    height: 100%;
    background: linear-gradient(90deg, #4caf50, #2196f3);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.effectiveness-percent {
    font-size: 0.9rem;
    color: #333;
    font-weight: 600;
    min-width: 35px;
}

/* 국내 대응 현황 */
.korea-response-dashboard {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.response-timeline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.timeline-item {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 30px;
    right: -10px;
    width: 20px;
    height: 2px;
    background: #ddd;
}

.timeline-year {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #f0f0f0;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 15px;
    font-size: 0.9rem;
}

.timeline-item.current .timeline-year {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.timeline-content h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: #333;
}

.timeline-content p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.5;
}

.achievement-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.achievement-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
}

.achievement-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.achievement-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.achievement-data h4 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: #333;
    font-weight: 700;
}

.achievement-data p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 5px;
}

.growth {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.improvement {
    background: #e3f2fd;
    color: #1976d2;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.technology-development h4 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: #333;
    text-align: center;
}

.tech-progress-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.tech-info {
    flex: 1;
}

.tech-info h5 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: #333;
}

.tech-info p {
    font-size: 0.9rem;
    color: #666;
}

.tech-progress {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 150px;
}

.progress-bar {
    flex: 1;
    height: 10px;
    background: #e0e0e0;
    border-radius: 5px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4caf50, #2196f3);
    border-radius: 5px;
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 0.9rem;
    color: #333;
    font-weight: 600;
    min-width: 35px;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .detection-flow {
        flex-direction: column;
        gap: 15px;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .detection-grid {
        grid-template-columns: 1fr;
    }
    
    .checklist-container {
        grid-template-columns: 1fr;
    }
    
    .overview-stats {
        gap: 30px;
    }
    
    .category-tabs {
        flex-direction: column;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .personal-methods-grid {
        grid-template-columns: 1fr;
    }
    
    .response-timeline {
        flex-direction: column;
    }
    
    .timeline-item:not(:last-child)::after {
        display: none;
    }
    
    .achievement-stats {
        grid-template-columns: 1fr;
    }
    
    .tech-item {
        flex-direction: column;
        text-align: center;
    }
}

/* 4. 딥페이크 범죄 대응 방안 - 개선된 디자인 */
.response-guide-enhanced {
    max-width: 1400px;  /* container와 동일하게 */
    margin: 0 auto;
    padding: 0 20px;    /* container와 동일한 padding 추가 */
    width: 100%;        /* container와 동일한 width 추가 */
}

/* 가이드 인트로 */
.guide-intro {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.intro-content h3 {
    margin: 0 0 10px 0;
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.intro-content p {
    margin: 0;
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.5;
}

.emergency-hotline {
    display: flex;
    gap: 20px;
}

.hotline-item {
    background: rgba(255, 255, 255, 0.15);
    padding: 15px 20px;
    border-radius: 12px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.hotline-item:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.2);
}

.hotline-item i {
    font-size: 1.5rem;
    margin-bottom: 8px;
    display: block;
}

.hotline-item span {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 5px;
    opacity: 0.9;
}

.hotline-item strong {
    font-size: 1.2rem;
    font-weight: 700;
}

/* 시나리오 탭 네비게이션 */
.scenario-tab-nav {
    display: flex;
    background: #f8f9fa;
    border-radius: 15px;
    padding: 8px;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.scenario-tab {
    flex: 1;
    background: transparent;
    border: none;
    padding: 15px 20px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    color: #6c757d;
}

.scenario-tab:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.scenario-tab.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.scenario-tab i {
    font-size: 1.1rem;
}

/* 시나리오 콘텐츠 */
.scenario-content {
    position: relative;
    width: 100% !important;
    max-width: none !important;
    display: block !important;
}

.scenario-panel {
    display: none;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid #e9ecef;
}

.scenario-panel.active {
    display: block;
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 시나리오 헤더 */
.scenario-header {
    margin-bottom: 30px;
    text-align: center;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.header-badge.critical {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
}

.header-badge.warning {
    background: linear-gradient(135deg, #ffa726, #ff9800);
    color: white;
}

.header-badge.info {
    background: linear-gradient(135deg, #42a5f5, #2196f3);
    color: white;
}

.scenario-header h4 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
}

/* 개인 피해자 시나리오 */
.response-steps {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.step-group {
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid #e9ecef;
}

.group-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid #e9ecef;
}

.time-badge {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.group-header h5 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
}

.steps-list {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.response-step {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.response-step:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.step-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.step-content h6 {
    margin: 0 0 8px 0;
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e50;
}

.step-content p {
    margin: 0 0 10px 0;
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.4;
}

.step-tips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tip {
    background: #667eea;
    color: white;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* 후속 지원 */
.support-grid {
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.support-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 15px;
    display: flex;
    gap: 15px;
    transition: all 0.3s ease;
}

.support-item:hover {
    background: #e9ecef;
    transform: translateY(-3px);
}

.support-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #42a5f5, #2196f3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.support-info h6 {
    margin: 0 0 5px 0;
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e50;
}

.contact-number {
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: #667eea;
}

.service-desc {
    margin: 0;
    font-size: 0.85rem;
    color: #6c757d;
    line-height: 1.3;
}

/* 기업 시나리오 */
.corporate-flow {
    padding: 20px 0;
}

.flow-timeline {
    position: relative;
}

.flow-timeline::before {
    content: '';
    position: absolute;
    left: 25px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #667eea, #764ba2);
}

.timeline-step {
    position: relative;
    padding-left: 70px;
    margin-bottom: 30px;
}

.timeline-step:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.timeline-content {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 15px;
    border-left: 4px solid #667eea;
}

.timeline-content h6 {
    margin: 0 0 15px 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
}

.action-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.action-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    background: white;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #2c3e50;
    transition: all 0.2s ease;
}

.action-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.action-item i {
    color: #667eea;
    width: 20px;
    text-align: center;
}

/* 목격자 시나리오 */
.witness-guide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.guide-section {
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid #e9ecef;
}

.section-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header.positive {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
}

.section-header.negative {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
}

.section-header h5 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.guide-items {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.guide-item {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.guide-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.item-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    flex-shrink: 0;
}

.item-icon.positive {
    background: linear-gradient(135deg, #28a745, #20c997);
}

.item-icon.negative {
    background: linear-gradient(135deg, #dc3545, #c82333);
}

.item-content h6 {
    margin: 0 0 5px 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: #2c3e50;
}

.item-content p {
    margin: 0;
    font-size: 0.85rem;
    color: #6c757d;
    line-height: 1.3;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .guide-intro {
        flex-direction: column;
        text-align: center;
    }
    
    .emergency-hotline {
        justify-content: center;
    }
    
    .scenario-tab-nav {
        flex-direction: column;
        gap: 5px;
    }
    
    .scenario-tab {
        padding: 12px 15px;
    }
    
    .scenario-panel {
        padding: 20px;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
    }
    
    .witness-guide {
        grid-template-columns: 1fr;
    }
    
    .flow-timeline::before {
        left: 20px;
    }
    
    .timeline-step {
        padding-left: 60px;
    }
    
    .timeline-marker {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* 추가 애니메이션 효과 */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(102, 126, 234, 0.6);
    }
}

/* 스크롤 애니메이션 */
.response-step,
.timeline-step,
.guide-item,
.support-item {
    animation: slideInUp 0.6s ease-out;
}

.scenario-header {
    animation: fadeInScale 0.5s ease-out;
}

/* 호버 상태 개선 */
.scenario-tab:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.2);
}

.hotline-item:hover {
    animation: pulseGlow 2s infinite;
}

/* 접근성 개선 */
.scenario-tab:focus,
.response-step:focus,
.guide-item:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* 다크모드 대응 (선택사항) */
@media (prefers-color-scheme: dark) {
    .scenario-panel {
        background: #2c3e50;
        color: #ecf0f1;
    }
    
    .response-step {
        background: #34495e;
    }
    
    .support-item {
        background: #34495e;
    }
}

/* 딥페이크 성범죄 현황 섹션 */
.crisis-alert {
    background: linear-gradient(135deg, #ff4757 0%, #ff3838 100%);
    color: white;
    padding: 2rem;
    border-radius: 15px;
    margin-bottom: 3rem;
    box-shadow: 0 10px 30px rgba(255, 71, 87, 0.3);
}

.alert-header {
    text-align: center;
}

.alert-header i {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.crisis-alert h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.crisis-alert p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 통계 카드 */
.stats-comparison {
    margin-bottom: 3rem;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-left: 6px solid;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card.critical {
    border-left-color: #ff4757;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: #ff4757;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-desc {
    font-size: 1.1rem;
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 1rem;
}

.stat-trend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: #ff4757;
    font-weight: 800;
}

.stat-trend i {
    font-size: 1.2rem;
}

/* 실제 피해 사례 */
.real-cases {
    margin-bottom: 3rem;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.case-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-left: 6px solid;
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-3px);
}

.case-card.severe {
    border-left-color: #ff4757;
}

.case-card.warning {
    border-left-color: #ffa502;
}

.case-header {
    background: #f8f9fa;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.case-header i {
    font-size: 1.8rem;
    color: #3742fa;
}

.case-header h4 {
    color: #2c3e50;
    margin: 0 1rem 0 0.5rem;
    flex: 1;
}

.case-date {
    background: #3742fa;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.case-content {
    padding: 1.5rem;
}

.victim-info {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.victim-count, .platform-info {
    background: #ecf0f1;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #2c3e50;
}

.case-description {
    margin-bottom: 1rem;
    line-height: 1.6;
    color: #34495e;
}

.case-impact {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.impact-tag {
    background: #ff4757;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.case-result {
    background: #f1c40f;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    color: #2c3e50;
}

/* 트렌드 분석 */
.trend-analysis {
    margin-bottom: 3rem;
}

.trend-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.trend-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-top: 5px solid;
}

.trend-card.danger {
    border-top-color: #ff4757;
}

.trend-card.critical {
    border-top-color: #ff3838;
}

.trend-card.warning {
    border-top-color: #ffa502;
}

.trend-card i {
    font-size: 2.5rem;
    color: #3742fa;
    margin-bottom: 1rem;
}

.trend-card h4 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.trend-stats {
    margin-bottom: 1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.stat-item .number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ff4757;
}

.stat-item .desc {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.trend-desc {
    text-align: left;
    line-height: 1.6;
    color: #34495e;
}

/* 법적 처벌 강화 */
.legal-enforcement {
    margin-bottom: 3rem;
}

.legal-changes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.change-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-top: 5px solid;
}

.change-card.new {
    border-top-color: #26de81;
}

.change-card.enhanced {
    border-top-color: #3742fa;
}

.change-card.special {
    border-top-color: #ff4757;
}

.change-header {
    background: #f8f9fa;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.change-header i {
    font-size: 1.8rem;
    color: #3742fa;
    margin-right: 0.5rem;
}

.change-header h4 {
    color: #2c3e50;
    flex: 1;
}

.status-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

.status-badge.new {
    background: #26de81;
}

.status-badge.enhanced {
    background: #3742fa;
}

.status-badge.special {
    background: #ff4757;
}

.status-badge.integrated {
    background: #5f27cd;
}

.status-badge.mandatory {
    background: #ff9ff3;
    color: #2c3e50;
}

.status-badge.expanded {
    background: #00d2d3;
}

.status-badge.successful {
    background: #26de81;
}

.status-badge.ongoing {
    background: #ffa502;
}

.change-content {
    padding: 1.5rem;
}

.before-after {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.before, .after {
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.before {
    background: #ecf0f1;
}

.after {
    background: #d5f4e6;
}

.before h5, .after h5 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.arrow {
    font-size: 1.5rem;
    font-weight: bold;
    color: #3742fa;
}

.legal-note {
    background: #e3f2fd;
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: #1565c0;
}

.legal-note.warning {
    background: #fff3e0;
    color: #ef6c00;
}

.punishment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.punishment-item {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.punishment-item h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.penalty {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ff4757;
    display: block;
    margin-bottom: 0.3rem;
}

.punishment-item small {
    color: #7f8c8d;
    font-size: 0.8rem;
}

/* 피해자 지원 시스템 */
.victim-support-system {
    margin-bottom: 3rem;
}

.support-enhancements {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.enhancement-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-left: 6px solid #3742fa;
}

.enhancement-header {
    background: #f8f9fa;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.enhancement-header i {
    font-size: 1.8rem;
    color: #3742fa;
    margin-right: 0.5rem;
}

.enhancement-header h4 {
    color: #2c3e50;
    flex: 1;
}

.enhancement-content {
    padding: 1.5rem;
}

.contact-unified {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 1rem;
}

.unified-number {
    text-align: center;
}

.unified-number .number {
    font-size: 3rem;
    font-weight: 800;
    color: #3742fa;
    display: block;
    margin-bottom: 0.5rem;
}

.support-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.feature-item {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.feature-item i {
    font-size: 1.5rem;
    color: #3742fa;
    margin-bottom: 0.5rem;
}

.feature-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: #2c3e50;
}

.integration-benefit, .deletion-benefit {
    background: #e8f5e8;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #2e7d32;
}

.deletion-process {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-icon {
    width: 40px;
    height: 40px;
    background: #3b41ee;
    color: rgb(255, 255, 255);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.step-info h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.step-info p {
    color: #7f8c8d;
    font-size: 0.9rem;
    line-height: 1.4;
}

.expansion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.expansion-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
}

.expansion-item h5 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.expansion-item ul {
    list-style: none;
    padding: 0;
}

.expansion-item li {
    padding: 0.3rem 0;
    color: #34495e;
    font-size: 0.9rem;
}

/* 플랫폼 책임성 강화 */
.platform-responsibility {
    margin-bottom: 3rem;
}

.platform-measures {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.measure-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-top: 5px solid;
}

.measure-card.successful {
    border-top-color: #26de81;
}

.measure-card.ongoing {
    border-top-color: #ffa502;
}

.measure-header {
    background: #f8f9fa;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.measure-header i {
    font-size: 1.8rem;
    color: #3742fa;
    margin-right: 0.5rem;
}

.measure-header h4 {
    color: #2c3e50;
    flex: 1;
}

.measure-content {
    padding: 1.5rem;
}

.achievement-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.stat-number {
    font-size: 5.5rem;
    font-weight: 700;
    color: #26de81;
    display: block;
    margin-bottom: 0.3rem;
}

.stat-desc {
    font-size: 1.3rem;
    color: #7f8c8d;
}

.cooperation-details h5 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.cooperation-details ul {
    list-style: none;
    padding: 0;
}

.cooperation-details li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #34495e;
    font-size: 0.9rem;
}

.cooperation-details li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #26de81;
    font-weight: bold;
}

.obligation-list {
    display: grid;
    gap: 1rem;
}

.obligation-item {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #ffa502;
}

.obligation-item h5 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.obligation-item p {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin: 0;
}

/* 요약 경고 박스 */
.summary-alert {
    background: linear-gradient(135deg, #ff4757 0%, #ff3838 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 2rem;
}

.alert-content {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.alert-content i {
    font-size: 1.5rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.alert-content h4 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.alert-content p {
    margin: 0.3rem 0;
    font-size: 0.9rem;
}

/* 애니메이션 */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .comparison-grid,
    .case-grid,
    .trend-cards,
    .legal-changes,
    .platform-measures {
        grid-template-columns: 1fr;
    }
    
    .before-after {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .arrow {
        transform: rotate(90deg);
    }
    
    .contact-unified {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .deletion-process {
        grid-template-columns: 1fr;
    }
}

/* 참고자료 박스 스타일 */
.reference-box {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border: 2px solid #cbd5e0;
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
    position: relative;
}

.reference-box::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 12px;
    z-index: -1;
    opacity: 0.1;
}

.reference-box h4 {
    color: #2d3748;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reference-box h4 i {
    color: #667eea;
}

.reference-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.reference-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.reference-content h5 {
    color: #2d3748;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.reference-content p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.reference-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

.reference-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    color: white;
    text-decoration: none;
}

.reference-red-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-bottom: 1rem;
}

.reference-red-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    color: white;
    text-decoration: none;
}

.reference-note {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(102, 126, 234, 0.1);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-top: 1rem;
}

.reference-note i {
    color: #667eea;
    font-size: 0.9rem;
}

.reference-note span {
    color: #4a5568;
    font-size: 0.9rem;
    font-style: italic;
}

@media (max-width: 768px) {
    .reference-item {
        flex-direction: column;
        text-align: center;
    }
    
    .reference-icon {
        align-self: center;
    }
}

/* 실습 예제 스타일 */
.practical-example {
    background: #f8fafc;
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    border: 2px solid #e2e8f0;
}

.practical-example h3 {
    color: #2d3748;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    text-align: center;
}

.example-intro {
    background: #e3f2fd;
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    border-left: 4px solid #2196f3;
}

.example-intro p {
    margin: 0;
    color: #1565c0;
    font-size: 1rem;
    line-height: 1.6;
}

.analysis-guide {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin: 2rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.analysis-guide h4 {
    color: #2d3748;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkpoint-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.checkpoint-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.checkpoint-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.checkpoint-item i {
    color: #667eea;
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}

.checkpoint-item span {
    color: #2d3748;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 정답 공개 */
.reveal-answer {
    margin-top: 2rem;
}

.reveal-answer details {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.reveal-answer summary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.1rem;
    list-style: none;
    transition: all 0.3s ease;
}

.reveal-answer summary:hover {
    background: linear-gradient(135deg, #5a67d8, #6b46c1);
}

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

.answer-content {
    padding: 1.5rem;
}

.answer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.answer-item {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid;
    transition: all 0.3s ease;
}

.answer-item.real {
    border-left-color: #28a745;
}

.answer-item.fake {
    border-left-color: #dc3545;
}

.answer-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.person-number {
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.result-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.result-badge.real {
    background: #d4edda;
    color: #155724;
}

.result-badge.fake {
    background: #f8d7da;
    color: #721c24;
}

.answer-item p {
    margin: 0;
    color: #6c757d;
    font-size: 0.9rem;
    line-height: 1.4;
}

.learning-note {
    background: #fff3cd;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #ffc107;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.learning-note i {
    color: #856404;
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.learning-note strong {
    color: #856404;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .checkpoint-grid {
        grid-template-columns: 1fr;
    }
    
    .answer-grid {
        grid-template-columns: 1fr;
    }
    
    .practical-example {
        padding: 1.5rem;
    }
}

.reference-blue-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #3498db;
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.reference-blue-link:hover {
    color: #2980b9;
    background-color: rgba(52, 152, 219, 0.1);
    padding-left: 0.5rem;
    transform: translateX(5px);
}

.reference-red-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #e74c3c;
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.reference-red-link:hover {
    color: #c0392b;
    background-color: rgba(231, 76, 60, 0.1);
    padding-left: 0.5rem;
    transform: translateX(5px);
}

/* 체크리스트 컬럼별 색상 구분 */
.checklist-container {
    background: linear-gradient(135deg, #4a90e2 0%, #50c878 50%, #9b59b6 100%);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 40px;
}

/* 1차 시각 검증 - 파란색 */
.checklist-column:nth-child(1) {
    background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
    border-radius: 15px;
    padding: 25px;
    border: 2px solid rgba(74, 144, 226, 0.3);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.2);
}

.checklist-column:nth-child(1) h4 {
    background: rgba(74, 144, 226, 0.9);
    color: white;
    border: 2px solid rgba(74, 144, 226, 0.5);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.checklist-column:nth-child(1) .checklist-item {
    background: rgba(74, 144, 226, 0.15);
    border: 1px solid rgba(74, 144, 226, 0.3);
}

.checklist-column:nth-child(1) .checklist-item:hover {
    background: rgba(74, 144, 226, 0.25);
    border-color: rgba(74, 144, 226, 0.5);
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.checklist-column:nth-child(1) .checkmark {
    border-color: rgba(74, 144, 226, 0.8);
    background: rgba(74, 144, 226, 0.1);
}

.checklist-column:nth-child(1) .checklist-item input[type="checkbox"]:checked + .checkmark {
    background: #4a90e2;
    border-color: #4a90e2;
}

/* 2차 청각 검증 - 녹색 */
.checklist-column:nth-child(2) {
    background: linear-gradient(135deg, #50c878 0%, #3ea65c 100%);
    border-radius: 15px;
    padding: 25px;
    border: 2px solid rgba(80, 200, 120, 0.3);
    box-shadow: 0 8px 25px rgba(80, 200, 120, 0.2);
}

.checklist-column:nth-child(2) h4 {
    background: rgba(80, 200, 120, 0.9);
    color: white;
    border: 2px solid rgba(80, 200, 120, 0.5);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.checklist-column:nth-child(2) .checklist-item {
    background: rgba(80, 200, 120, 0.15);
    border: 1px solid rgba(80, 200, 120, 0.3);
}

.checklist-column:nth-child(2) .checklist-item:hover {
    background: rgba(80, 200, 120, 0.25);
    border-color: rgba(80, 200, 120, 0.5);
    box-shadow: 0 4px 15px rgba(80, 200, 120, 0.3);
}

.checklist-column:nth-child(2) .checkmark {
    border-color: rgba(80, 200, 120, 0.8);
    background: rgba(80, 200, 120, 0.1);
}

.checklist-column:nth-child(2) .checklist-item input[type="checkbox"]:checked + .checkmark {
    background: #50c878;
    border-color: #50c878;
}

/* 3차 맥락 검증 - 보라색 */
.checklist-column:nth-child(3) {
    background: linear-gradient(135deg, #9b59b6 0%, #7d3c98 100%);
    border-radius: 15px;
    padding: 25px;
    border: 2px solid rgba(155, 89, 182, 0.3);
    box-shadow: 0 8px 25px rgba(155, 89, 182, 0.2);
}

.checklist-column:nth-child(3) h4 {
    background: rgba(155, 89, 182, 0.9);
    color: white;
    border: 2px solid rgba(155, 89, 182, 0.5);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.checklist-column:nth-child(3) .checklist-item {
    background: rgba(155, 89, 182, 0.15);
    border: 1px solid rgba(155, 89, 182, 0.3);
}

.checklist-column:nth-child(3) .checklist-item:hover {
    background: rgba(155, 89, 182, 0.25);
    border-color: rgba(155, 89, 182, 0.5);
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
}

.checklist-column:nth-child(3) .checkmark {
    border-color: rgba(155, 89, 182, 0.8);
    background: rgba(155, 89, 182, 0.1);
}

.checklist-column:nth-child(3) .checklist-item input[type="checkbox"]:checked + .checkmark {
    background: #9b59b6;
    border-color: #9b59b6;
}

/* 체크리스트 컬럼 공통 스타일 강화 */
.checklist-column {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.checklist-column::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.checklist-column:hover {
    transform: translateY(-5px);
}

/* 모바일 반응형 개선 */
@media (max-width: 768px) {
    .checklist-container {
        padding: 20px;
    }
    
    .checklist-column {
        padding: 20px;
        margin-bottom: 20px;
    }
    
    .checklist-column h4 {
        font-size: 1.1rem;
        padding: 12px;
    }
    
    .checklist-item {
        padding: 12px;
        font-size: 0.9rem;
    }
}