/* ========================================
   기본 설정
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 컬러 팔레트 - 차분하고 신뢰감 있는 색상 */
    --primary-color: #4A90E2;
    --primary-dark: #357ABD;
    --secondary-color: #7B68EE;
    --success-color: #52C41A;
    --warning-color: #FA8C16;
    --danger-color: #F5222D;
    --info-color: #1890FF;
    
    /* 중성 색상 */
    --gray-50: #FAFAFA;
    --gray-100: #F5F5F5;
    --gray-200: #EEEEEE;
    --gray-300: #E0E0E0;
    --gray-400: #BDBDBD;
    --gray-500: #9E9E9E;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;
    
    /* 텍스트 */
    --text-primary: #2C3E50;
    --text-secondary: #5A6C7D;
    --text-light: #8B95A5;
    
    /* 배경 */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-tertiary: #EEF2F6;
    
    /* 그림자 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.12);
    
    /* 간격 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* 폰트 */
    --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* ============================================
       타이포그래픽 스케일 (Type Scale System)
       ============================================ */
    /* Display - 큰 제목 */
    --font-display-1: 3.5rem;     /* 56px - 메인 타이틀 */
    --font-display-2: 3rem;       /* 48px - 서브 타이틀 */
    --font-display-3: 2.5rem;     /* 40px - 섹션 큰 제목 */
    
    /* Heading - 헤딩 */
    --font-h1: 2rem;              /* 32px */
    --font-h2: 1.75rem;           /* 28px */
    --font-h3: 1.5rem;            /* 24px */
    --font-h4: 1.25rem;           /* 20px */
    --font-h5: 1.125rem;          /* 18px */
    --font-h6: 1rem;              /* 16px */
    
    /* Body - 본문 */
    --font-body-xl: 1.25rem;      /* 20px - 큰 본문 */
    --font-body-lg: 1.125rem;     /* 18px - 중간 본문 */
    --font-body: 1rem;            /* 16px - 기본 본문 */
    --font-body-sm: 0.875rem;     /* 14px - 작은 본문 */
    --font-body-xs: 0.75rem;      /* 12px - 매우 작은 본문 */
    
    /* Font Weight */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Line Height */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    --line-height-loose: 2;
    
    /* Letter Spacing */
    --letter-spacing-tight: -0.02em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(74, 144, 226, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(123, 104, 238, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: floatingBg 20s ease-in-out infinite;
}

@keyframes floatingBg {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
}

/* ========================================
   헤더
   ======================================== */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-xl) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(74, 144, 226, 0.2);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.logo-icon i {
    font-size: 2.5rem;
    color: white;
    z-index: 1;
}

.logo-text {
    flex: 1;
}

.logo-title {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.5px;
}

.logo-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.logo-version {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 600;
    letter-spacing: 1px;
}

/* ========================================
   메인 콘텐츠
   ======================================== */
.main-content {
    padding: var(--spacing-2xl) 0;
    min-height: calc(100vh - 200px);
}

.section {
    display: none;
    background: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 0.4s ease-in-out;
}

.section.active {
    display: block;
}

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

/* ========================================
   시작 화면
   ======================================== */
.intro-card {
    max-width: 800px;
    margin: 0 auto;
}

.intro-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-radius: 20px;
    border: 2px solid rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.intro-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.intro-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
    position: relative;
    z-index: 1;
}

.intro-icon i {
    font-size: 3.5rem;
    color: white;
}

.intro-title {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.intro-developer {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.intro-description {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: 16px;
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 2px solid rgba(102, 126, 234, 0.1);
}

.intro-main-text {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--text-primary);
    text-align: center;
}

.intro-main-text strong {
    color: var(--primary-color);
    font-weight: 700;
}

.highlight-text {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15));
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
    color: var(--primary-color);
}

.purpose-box {
    background: white;
    padding: var(--spacing-2xl);
    border-radius: 16px;
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.purpose-box h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
    text-align: center;
    font-weight: 700;
}

.purpose-box h3 i {
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
}

.purpose-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
}

.purpose-item {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    border: 2px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.purpose-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.2);
    border-color: var(--primary-color);
}

.purpose-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    display: block;
}

.purpose-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.purpose-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-box {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-radius: 8px;
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
}

.info-box i {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.info-box.warning {
    background: #FFF7E6;
    border-color: var(--warning-color);
    color: #AD6800;
}

.info-box.warning i {
    color: var(--warning-color);
}

.info-box.info {
    background: #E6F7FF;
    border-color: var(--info-color);
    color: #0050B3;
}

.info-box.info i {
    color: var(--info-color);
}

.info-box.danger {
    background: #FFF1F0;
    border-color: var(--danger-color);
    color: #A8071A;
}

.info-box.danger i {
    color: var(--danger-color);
}

.purpose-box {
    background: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: 8px;
    margin-bottom: var(--spacing-lg);
}

.purpose-box h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.purpose-box h3 i {
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
}

.purpose-box p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.7;
}

.purpose-box ul {
    list-style: none;
    padding-left: 0;
}

.purpose-box ul li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
}

.purpose-box ul li i {
    color: var(--success-color);
    margin-right: var(--spacing-sm);
}

.score-guide {
    background: var(--bg-tertiary);
    padding: var(--spacing-xl);
    border-radius: 8px;
    margin-bottom: var(--spacing-xl);
}

.score-guide h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    text-align: center;
    color: var(--text-primary);
}

.score-guide-desc {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-lg);
}

.score-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
}

.score-item {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 3px solid transparent;
    transition: all 0.3s ease;
}

.score-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.score-item.score-0 {
    border-color: #E8F5E9;
}

.score-item.score-1 {
    border-color: #FFF9C4;
}

.score-item.score-2 {
    border-color: #FFE0B2;
}

.score-item.score-3 {
    border-color: #FFCDD2;
}

.score-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.score-desc {
    display: block;
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.score-detail {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ========================================
   진행 바
   ======================================== */
.progress-container {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: 8px;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 0.3s ease;
}

.progress-text {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ========================================
   섹션 헤더
   ======================================== */
.section-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-200);
}

.section-header h2 {
    font-size: 1.6rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.section-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: 700;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-left: 52px;
}

/* ========================================
   질문 카드
   ======================================== */
.questions-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.question-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: var(--spacing-xl);
    border-radius: 16px;
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.question-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.question-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 16px rgba(74, 144, 226, 0.15);
    transform: translateX(5px);
}

.question-card:hover::before {
    opacity: 1;
}

.question-number {
    display: inline-block;
    font-weight: 700;
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 4px 12px;
    border-radius: 20px;
    margin-right: var(--spacing-md);
    font-size: 0.9rem;
    box-shadow: 0 2px 4px rgba(74, 144, 226, 0.3);
}

.question-text {
    display: block;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.question-options {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 2px dashed var(--gray-300);
}

.option-label {
    flex: 1;
    min-width: 110px;
    position: relative;
}

.option-label input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.option-label .option-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: white;
    border: 3px solid var(--gray-300);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    height: 120px;
    position: relative;
    overflow: hidden;
}

.option-label .option-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.option-label input[type="radio"]:checked + .option-button {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    transform: translateY(-4px);
}

.option-label input[type="radio"]:checked + .option-button::before {
    opacity: 1;
}

.option-label input[type="radio"]:checked + .option-button .option-value,
.option-label input[type="radio"]:checked + .option-button .option-text {
    color: white;
    position: relative;
    z-index: 1;
}

.option-label .option-button:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(74, 144, 226, 0.2);
}

.option-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.option-text {
    display: block;
    font-size: 0.85rem;
    text-align: center;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

/* ========================================
   진단 조건 체크
   ======================================== */
.diagnostic-checks {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.check-item {
    background: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: 8px;
}

.check-label {
    display: block;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.check-options {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-primary);
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.radio-label:hover {
    border-color: var(--primary-color);
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.radio-label input[type="radio"]:checked {
    accent-color: var(--primary-color);
}

.check-details {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: 8px;
}

.check-details p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* ========================================
   네비게이션
   ======================================== */
.section-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--gray-200);
}

/* ========================================
   버튼
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-family);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(-1px);
}

.btn i {
    position: relative;
    z-index: 1;
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), #6858c7);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--gray-300), var(--gray-400));
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.2rem;
    width: 100%;
    margin-top: var(--spacing-lg);
    border-radius: 16px;
}

.btn-info {
    background: linear-gradient(135deg, #17a2b8, #138496);
    color: white;
}

.btn-info:hover {
    background: linear-gradient(135deg, #138496, #117a8b);
}

/* ========================================
   모달
   ======================================== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 20px;
    width: 90%;
    max-width: 900px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 2px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-radius: 20px 20px 0 0;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-header i {
    color: var(--primary-color);
    margin-right: var(--spacing-sm);
}

.modal-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gray-200);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--danger-color);
    color: white;
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-xl);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 2px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.response-section {
    margin-bottom: var(--spacing-2xl);
}

.response-section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

.response-item {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--primary-color);
}

.response-question {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.response-answer {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 700;
}

.response-answer-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* ========================================
   결과 화면
   ======================================== */
.result-container {
    max-width: 900px;
    margin: 0 auto;
}

.result-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.result-header i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: pulse 2s ease-in-out infinite;
}

.result-header h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.result-date {
    font-size: 1rem;
    opacity: 0.9;
}

.score-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.score-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 16px;
    display: flex;
    gap: var(--spacing-lg);
    align-items: start;
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.score-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.score-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.2);
    transform: translateY(-8px);
}

.score-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.score-content {
    flex: 1;
}

.score-content h3 {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.score-value {
    margin-bottom: var(--spacing-sm);
}

.score-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-max {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 500;
}

.score-count {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: 6px;
    display: inline-block;
}

.result-diagnosis {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: var(--spacing-2xl);
    border-radius: 16px;
    margin-bottom: var(--spacing-xl);
    border-left: 6px solid var(--primary-color);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.diagnosis-level {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.diagnosis-level.level-0 {
    background: linear-gradient(135deg, #95a5a6, #7f8c8d);
    color: white;
}

.diagnosis-level.level-1 {
    background: linear-gradient(135deg, #52c41a, #389e0d);
    color: white;
}

.diagnosis-level.level-2 {
    background: linear-gradient(135deg, #1890ff, #096dd9);
    color: white;
}

.diagnosis-level.level-3 {
    background: linear-gradient(135deg, #faad14, #d48806);
    color: white;
}

.diagnosis-level.level-4 {
    background: linear-gradient(135deg, #fa8c16, #d46b08);
    color: white;
}

.diagnosis-level.level-5 {
    background: linear-gradient(135deg, #f5222d, #cf1322);
    color: white;
}

.diagnosis-level.level-6 {
    background: linear-gradient(135deg, #eb2f96, #c41d7f);
    color: white;
}

.diagnosis-title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.4;
}

.diagnosis-description {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: white;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.recommendation-section {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 2px dashed var(--gray-300);
}

.recommendation-section h4 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-weight: 700;
}

.recommendation-section h4 i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.recommendation-list {
    list-style: none;
    padding-left: 0;
}

.recommendation-list li {
    padding: var(--spacing-lg);
    padding-left: var(--spacing-2xl);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    background: white;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.recommendation-list li:hover {
    transform: translateX(8px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.15);
}

.recommendation-list li::before {
    content: "✓";
    position: absolute;
    left: var(--spacing-lg);
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.2rem;
}

.clinical-interpretation {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    padding: var(--spacing-xl);
    border-radius: 12px;
    margin-top: var(--spacing-xl);
    border: 2px solid rgba(102, 126, 234, 0.2);
}

.clinical-interpretation h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    font-weight: 700;
}

.clinical-interpretation i {
    margin-right: var(--spacing-sm);
}

.interpretation-content {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.interpretation-content strong {
    color: var(--primary-color);
    font-weight: 700;
}

.lifestyle-guidelines {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 12px;
    margin-top: var(--spacing-xl);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 2px solid rgba(74, 144, 226, 0.1);
}

.lifestyle-guidelines h4 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    font-weight: 700;
    text-align: center;
}

.lifestyle-guidelines h4 i {
    margin-right: var(--spacing-sm);
    color: #F5222D;
}

.guideline-category {
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.03), rgba(118, 75, 162, 0.03));
    padding: var(--spacing-lg);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.guideline-category h5 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.guideline-category h5 i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.guideline-items {
    list-style: none;
    padding-left: 0;
}

.guideline-items li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-xl);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

.guideline-items li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

.result-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border-radius: 12px;
}

/* ========================================
   푸터
   ======================================== */
.footer {
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.footer-note {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ========================================
   반응형 디자인
   ======================================== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .logo h1 {
        font-size: 1.4rem;
    }

    .subtitle {
        font-size: 0.85rem;
        margin-left: 0;
    }

    .section {
        padding: var(--spacing-xl);
    }

    .intro-icon i {
        font-size: 3rem;
    }

    .intro-card h2 {
        font-size: 1.4rem;
    }

    .score-items {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-header h2 {
        font-size: 1.3rem;
        flex-direction: column;
        align-items: flex-start;
    }

    .section-desc {
        margin-left: 0;
        margin-top: var(--spacing-sm);
    }

    .question-card {
        padding: var(--spacing-lg);
    }

    .question-options {
        gap: var(--spacing-sm);
    }

    .option-label {
        min-width: 75px;
    }

    .option-label .option-button {
        height: 100px;
        padding: var(--spacing-md);
    }

    .option-value {
        font-size: 1.5rem;
    }

    .option-text {
        font-size: 0.75rem;
    }

    .section-navigation {
        flex-direction: column;
    }

    .section-navigation .btn {
        width: 100%;
    }

    .score-summary {
        grid-template-columns: 1fr;
    }

    .result-header h2 {
        font-size: 1.5rem;
    }

    .result-header i {
        font-size: 3rem;
    }

    .diagnosis-title {
        font-size: 1.4rem;
    }

    .result-actions {
        flex-direction: column;
    }

    .result-actions .btn {
        width: 100%;
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    .logo h1 {
        font-size: 1.2rem;
    }

    .score-items {
        grid-template-columns: 1fr;
    }

    .question-card {
        padding: var(--spacing-md);
    }

    .question-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .option-label {
        min-width: auto;
    }

    .check-options {
        flex-direction: column;
    }

    .score-card {
        flex-direction: column;
        text-align: center;
    }

    .score-icon {
        margin: 0 auto;
    }
}

    .score-items {
        grid-template-columns: 1fr;
    }

    .question-card {
        padding: var(--spacing-lg);
    }

    .check-options {
        flex-direction: column;
    }
}

/* ========================================
   프린트 스타일
   ======================================== */
@media print {
    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
        color-adjust: exact !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }

    .header,
    .progress-container,
    .section-navigation,
    .result-actions,
    .footer,
    #intro-section,
    #section-a,
    #section-b,
    #section-c,
    #section-d,
    #section-e,
    #section-f {
        display: none !important;
    }
    
    #section-result {
        display: block !important;
        page-break-after: avoid;
    }

    .section {
        box-shadow: none !important;
        border: none !important;
        padding: 20px !important;
        margin: 0 !important;
    }

    .result-container {
        max-width: 100% !important;
    }
    
    .result-header {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
        color: white !important;
        padding: 30px !important;
        border-radius: 10px !important;
        margin-bottom: 30px !important;
        page-break-inside: avoid;
    }
    
    .result-header h2,
    .result-date {
        color: white !important;
    }
    
    .score-summary {
        page-break-inside: avoid;
        margin-bottom: 30px !important;
    }
    
    .score-card {
        page-break-inside: avoid;
        border: 2px solid #ddd !important;
        margin-bottom: 15px !important;
    }
    
    .score-icon {
        background: linear-gradient(135deg, #4A90E2, #7B68EE) !important;
        color: white !important;
    }
    
    .result-diagnosis {
        page-break-inside: avoid;
        border: 2px solid #4A90E2 !important;
        padding: 25px !important;
        margin-bottom: 25px !important;
    }
    
    .diagnosis-level {
        page-break-after: avoid;
    }
    
    .recommendation-section {
        page-break-inside: avoid;
        margin-top: 20px !important;
        padding-top: 20px !important;
    }
    
    .recommendation-list li {
        page-break-inside: avoid;
        border: 1px solid #eee !important;
        margin-bottom: 10px !important;
    }
    
    .info-box {
        page-break-inside: avoid;
        border: 2px solid #FA8C16 !important;
        padding: 15px !important;
        margin: 15px 0 !important;
    }
    
    /* 인쇄 전용 헤더 */
    #section-result::before {
        content: 'ADHD 자가선별 검사 결과 - 과잉진단 방지형';
        display: block;
        font-size: 24px;
        font-weight: bold;
        text-align: center;
        margin-bottom: 20px;
        padding-bottom: 10px;
        border-bottom: 3px solid #4A90E2;
    }
    
    /* 인쇄 전용 푸터 */
    #section-result::after {
        content: '이 결과는 자가 선별 도구이며 진단이 아닙니다. 정신건강의학과 전문의 상담을 권장합니다.';
        display: block;
        font-size: 10px;
        text-align: center;
        margin-top: 30px;
        padding-top: 15px;
        border-top: 1px solid #ddd;
        color: #999;
    }
}

/* ========================================
   애니메이션
   ======================================== */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}