/* ========================================
   연봉 실수령액 계산기 2025 - 메인 스타일
   ======================================== */

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

:root {
    /* 색상 팔레트 - 파란색 계열 메인 */
    --bg-white: #FFFFFF;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --point-blue: #0066FF;
    --point-blue-dark: #0052CC;
    --point-blue-light: #E6F2FF;
    --error-red: #E74C3C;
    --border-gray: #E5E5E5;
    --bg-light: #F9FAFB;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   페이지 레이아웃 (PC: 3단, 모바일: 1단)
   ======================================== */

.page-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* 애드센스 사이드바 */
.ad-sidebar {
    width: 200px;
    position: sticky;
    top: 20px;
    flex-shrink: 0;
}

/* 모바일에서 광고 숨김 */
@media (max-width: 1199px) {
    .ad-sidebar {
        display: none;
    }
}

/* 메인 계산기 컨테이너 */
.calculator-container {
    flex: 1;
    max-width: 800px;
    background-color: var(--bg-white);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    padding: 40px;
}

@media (max-width: 768px) {
    .calculator-container {
        padding: 24px;
        border-radius: 12px;
    }
    
    .page-container {
        padding: 16px;
    }
}

/* ========================================
   상단/하단 네비게이션
   ======================================== */

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-gray);
}

.bottom-nav {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 32px 0 0 0;
    margin-top: 40px;
    border-top: 2px solid var(--border-gray);
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background-color: var(--bg-light);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
    border: 1px solid var(--border-gray);
}

.nav-btn:hover {
    background-color: var(--point-blue);
    color: white;
    border-color: var(--point-blue);
    transform: translateY(-1px);
}

.nav-btn-large {
    display: inline-block;
    text-align: center;
    padding: 16px 32px;
    background-color: var(--point-blue);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.nav-btn-large:hover {
    background-color: var(--point-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.share-buttons-top,
.share-buttons-bottom {
    display: flex;
    gap: 8px;
}

.share-btn {
    padding: 10px 20px;
    background-color: white;
    color: var(--text-primary);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.share-btn:hover {
    background-color: var(--point-blue);
    color: white;
    border-color: var(--point-blue);
    transform: translateY(-1px);
}

.share-btn-large {
    width: 100%;
    padding: 16px 32px;
    background-color: var(--point-blue);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.share-btn-large:hover {
    background-color: var(--point-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .top-nav {
        flex-direction: column;
        gap: 12px;
    }
    
    .nav-btn,
    .share-btn {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
}

/* ========================================
   계산 규칙 안내
   ======================================== */

.calculation-guide {
    background-color: var(--point-blue-light);
    border: 2px solid #B3D9FF;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
}

.calculation-guide h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.guide-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.guide-item {
    padding: 12px;
    background-color: white;
    border-radius: 8px;
    border-left: 4px solid var(--point-blue);
}

.guide-item strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.guide-item p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* ========================================
   헤더
   ======================================== */

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

.calculator-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

@media (max-width: 768px) {
    .calculator-header h1 {
        font-size: 24px;
    }
}

.info-box {
    background-color: var(--point-blue-light);
    border: 1px solid #B3D9FF;
    border-radius: 12px;
    padding: 20px;
    margin-top: 16px;
}

.info-date {
    font-size: 14px;
    font-weight: 600;
    color: var(--point-blue);
    margin-bottom: 8px;
}

.info-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ========================================
   입력 섹션
   ======================================== */

.input-section {
    margin-bottom: 40px;
}

.input-group {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.step-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-gray);
}

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

.input-field label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper input[type="text"],
.input-wrapper input[type="number"] {
    flex: 1;
    padding: 14px 60px 14px 16px;
    font-size: 16px;
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    transition: all 0.2s;
    font-family: inherit;
}

.input-wrapper input[type="text"]:focus,
.input-wrapper input[type="number"]:focus {
    outline: none;
    border-color: var(--point-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.input-unit {
    position: absolute;
    right: 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.korean-display {
    font-size: 14px;
    color: var(--point-blue);
    font-weight: 600;
    margin-top: 8px;
    min-height: 20px;
}

.help-text {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
}



/* 체크박스 그룹 */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 12px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.checkbox-item:hover {
    background-color: var(--bg-light);
}

.checkbox-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    cursor: pointer;
    accent-color: var(--point-blue);
}

.checkbox-item span {
    font-size: 14px;
    color: var(--text-primary);
}

/* 비과세 합계 */
.nontax-total {
    margin-top: 16px;
    padding: 16px;
    background-color: var(--point-blue-light);
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nontax-total span {
    font-size: 14px;
    color: var(--text-secondary);
}

.nontax-total strong {
    font-size: 18px;
    color: var(--point-blue);
}

/* 라디오 그룹 */
.tax-rate-group {
    margin-top: 16px;
}

.tax-rate-group > label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.radio-group {
    display: flex;
    gap: 12px;
}

@media (max-width: 768px) {
    .radio-group {
        flex-direction: column;
    }
}

.radio-item {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 12px;
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.radio-item:hover {
    border-color: var(--point-blue);
    background-color: var(--point-blue-light);
}

.radio-item input[type="radio"] {
    margin-right: 8px;
    cursor: pointer;
    accent-color: var(--point-blue);
}

.radio-item input[type="radio"]:checked + span {
    color: var(--point-blue);
    font-weight: 600;
}

/* ========================================
   결과 섹션
   ======================================== */

.result-section {
    animation: fadeIn 0.5s;
}

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

/* 실수령액 카드 */
.result-card {
    background-color: #F8FAFB;
    border: 2px solid var(--border-gray);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.result-card h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
    color: var(--text-primary);
}

.result-summary {
    background-color: white;
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border-gray);
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
}

.result-row span {
    font-size: 14px;
    color: var(--text-secondary);
}

.result-row strong {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.result-row.deduction strong {
    color: var(--error-red);
}

.result-row.highlight {
    padding: 16px;
    margin: 8px -16px;
    background-color: var(--point-blue-light);
    border-radius: 8px;
    border: 2px solid var(--point-blue);
}

.result-row.highlight strong {
    font-size: 28px;
    color: var(--point-blue);
}

@media (max-width: 768px) {
    .result-row.highlight strong {
        font-size: 22px;
    }
}

.result-row.percentage {
    margin-top: 8px;
    padding-top: 16px;
}

.result-row.percentage strong {
    font-size: 24px;
    color: var(--point-blue);
}

/* 구분선 */
.divider {
    height: 1px;
    background-color: var(--border-gray);
    margin: 8px 0;
}

.divider-thick {
    height: 2px;
    background-color: var(--border-gray);
    margin: 12px 0;
}

.divider-double {
    height: 3px;
    background: linear-gradient(to right, transparent, var(--border-gray), transparent);
    margin: 16px 0;
}

/* 공제 항목 상세 카드 */
.detail-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.detail-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.detail-section {
    margin-bottom: 24px;
}

.detail-section h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-gray);
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    padding-left: 16px;
}

.detail-item span:first-child {
    font-size: 14px;
    color: var(--text-secondary);
}

.detail-item strong {
    font-size: 16px;
    color: var(--text-primary);
}

.detail-item .rate {
    font-size: 12px;
    color: var(--text-secondary);
    margin-left: 8px;
}

.detail-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border-gray);
    font-weight: 600;
}

.detail-total strong {
    color: var(--point-blue);
    font-size: 18px;
}

.detail-grand-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background-color: #FFF5F5;
    border-radius: 8px;
    margin-top: 16px;
}

.detail-grand-total span {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.detail-grand-total strong {
    font-size: 22px;
    font-weight: 700;
    color: var(--error-red);
}

/* 비교 카드 */
.comparison-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    .comparison-cards {
        grid-template-columns: 1fr;
    }
}

.comparison-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 20px;
}

.comparison-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-align: center;
}

.comparison-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
}

.comparison-item span {
    font-size: 13px;
    color: var(--text-secondary);
}

.comparison-item strong {
    font-size: 15px;
    color: var(--text-primary);
}

.comparison-item.positive strong {
    color: var(--text-primary);
}

.comparison-item.negative strong {
    color: var(--error-red);
}

.comparison-item.highlight {
    background-color: var(--point-blue-light);
    padding: 12px;
    margin: 8px -12px;
    border-radius: 8px;
    border: 2px solid var(--point-blue);
}

.comparison-item.highlight strong {
    color: var(--point-blue);
    font-size: 18px;
}

/* 연봉별 비교표 */
.salary-comparison {
    background-color: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.salary-comparison h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.salary-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.salary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background-color: var(--bg-light);
    border-radius: 8px;
    transition: all 0.2s;
}

.salary-item:hover {
    background-color: var(--point-blue-light);
    transform: translateX(4px);
}

.salary-item.current {
    background-color: var(--point-blue-light);
    border: 2px solid var(--point-blue);
    font-weight: 600;
}

.salary-item span {
    font-size: 14px;
    color: var(--text-primary);
}

.salary-item .percentage {
    font-size: 13px;
    color: var(--text-secondary);
    margin-left: 8px;
}

/* 유용한 정보 */
.info-tips {
    background-color: var(--bg-light);
    border: 1px solid var(--border-gray);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.info-tips h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

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

.info-tips li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 0;
    line-height: 1.6;
}

/* 액션 버튼 */
.action-buttons {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

@media (max-width: 768px) {
    .action-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 16px 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    background-color: var(--bg-white);
    border: 2px solid var(--border-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn span {
    font-size: 24px;
}

.action-btn:hover {
    border-color: var(--point-blue);
    background-color: var(--point-blue-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.action-btn.kakao:hover {
    border-color: #FEE500;
    background-color: #FEE500;
    color: #3C1E1E;
}

.action-btn.reset {
    background-color: #FFF5F5;
    border-color: var(--error-red);
    color: var(--error-red);
}

.action-btn.reset:hover {
    background-color: var(--error-red);
    color: white;
}

/* ========================================
   푸터 (디스클레이머)
   ======================================== */

.disclaimer {
    background-color: #FFF5F5;
    border: 1px solid #FECACA;
    border-radius: 12px;
    padding: 20px;
    margin-top: 40px;
}

.disclaimer p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}

.disclaimer p:last-child {
    margin-bottom: 0;
}

.disclaimer strong {
    color: var(--error-red);
    font-weight: 600;
}

/* ========================================
   토스트 알림
   ======================================== */

.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 16px 24px;
    background-color: #1A1A1A;
    color: white;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: all 0.3s;
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* ========================================
   유틸리티 클래스
   ======================================== */

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

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }