* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

/* 헤더 */
.header {
    text-align: center;
    color: white;
    margin-bottom: 30px;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.header h1 {
    font-size: 28px;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 15px;
}

.disclaimer {
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    margin-top: 15px;
}

/* 입력 섹션 */
.input-section {
    background: white;
    border-radius: 20px;
    padding: 30px 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 2px solid #f0f0f0;
}

.form-group:last-of-type {
    border-bottom: none;
}

.form-group h2 {
    font-size: 20px;
    color: #667eea;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

.input-row {
    margin-bottom: 20px;
}

.input-row label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: #555;
    font-size: 15px;
}

.input-row input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-row input[type="number"]:focus {
    outline: none;
    border-color: #667eea;
}

.radio-group,
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    background: #f8f9fa;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

.radio-label:hover,
.checkbox-label:hover {
    background: #e8f0fe;
    border-color: #667eea;
}

.radio-label input[type="radio"],
.checkbox-label input[type="checkbox"] {
    margin-right: 8px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.radio-label input[type="radio"]:checked + span,
.checkbox-label input[type="checkbox"]:checked + span {
    color: #667eea;
    font-weight: 600;
}

.radio-label:has(input[type="radio"]:checked),
.checkbox-label:has(input[type="checkbox"]:checked) {
    background: #e8f0fe;
    border-color: #667eea;
}

.submit-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 20px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

/* 결과 섹션 */
.result-section {
    animation: fadeIn 0.5s ease-in;
}

.result-section.hidden {
    display: none;
}

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

.result-card {
    background: white;
    border-radius: 20px;
    padding: 25px 20px;
    margin-bottom: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.result-card h2 {
    font-size: 22px;
    color: #667eea;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f0f0f0;
}

/* 메인 결과 카드 */
.main-result {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.main-result h2 {
    color: white;
    border-bottom-color: rgba(255, 255, 255, 0.3);
}

.lifespan-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin: 20px 0;
}

.age-number {
    font-size: 64px;
    font-weight: 700;
    line-height: 1;
}

.age-unit {
    font-size: 32px;
    margin-left: 10px;
    opacity: 0.9;
}

.years-remaining {
    font-size: 18px;
    opacity: 0.9;
    margin-top: 10px;
}

/* 상태 요약 */
.status-summary {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 15px;
    line-height: 1.8;
}

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

.score-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

.score-label {
    display: block;
    font-size: 13px;
    color: #666;
    margin-bottom: 8px;
}

.score-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #667eea;
}

.score-value.risk {
    color: #e74c3c;
}

.score-value.improvement {
    color: #27ae60;
}

/* 개선 포인트 */
.improvement-list {
    margin-bottom: 20px;
}

.improvement-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.improvement-item strong {
    color: #667eea;
    font-size: 16px;
}

.improvement-item .points {
    color: #27ae60;
    font-weight: 600;
    font-size: 18px;
}

.improvement-summary {
    background: #e8f5e9;
    padding: 15px;
    border-radius: 10px;
    color: #2e7d32;
    font-weight: 600;
    text-align: center;
    margin-top: 15px;
}

/* 체크리스트 */
.checklist {
    list-style: none;
    padding: 0;
}

.checklist li {
    padding: 12px 15px;
    margin-bottom: 8px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    font-size: 15px;
    line-height: 1.6;
}

/* 건강 팁 */
.tips-content {
    display: grid;
    gap: 15px;
}

.tip-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
}

.tip-item h3 {
    color: #667eea;
    font-size: 16px;
    margin-bottom: 10px;
}

.tip-item p {
    font-size: 14px;
    line-height: 1.8;
    color: #555;
}

/* 광고 슬롯 */
.ad-slot {
    background: #f8f9fa;
    border: 2px dashed #ccc;
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    margin-bottom: 20px;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* 카카오 애드핏 광고 영역 */
.kakao_ad_area {
    margin: 0 auto;
    text-align: center;
}

.ad-label {
    font-size: 14px;
    color: #999;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-placeholder {
    color: #999;
    font-size: 14px;
}

.ad-note {
    font-size: 12px;
    color: #bbb;
    margin-top: 10px;
    font-style: italic;
}

/* 리셋 버튼 */
.reset-btn {
    width: 100%;
    padding: 15px;
    background: #6c757d;
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 10px;
}

.reset-btn:hover {
    background: #5a6268;
}

/* 모바일 최적화 */
@media (max-width: 600px) {
    .header h1 {
        font-size: 22px;
    }

    .subtitle {
        font-size: 14px;
    }

    .form-group h2 {
        font-size: 18px;
    }

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

    .age-number {
        font-size: 48px;
    }

    .age-unit {
        font-size: 24px;
    }

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

    .result-card {
        padding: 20px 15px;
    }
}