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

:root {
    --primary-color: #ec4899;
    --primary-dark: #db2777;
    --primary-light: #fbcfe8;
    --success-color: #10b981;
    --info-color: #3b82f6;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ===== 로딩 스피너 ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.loading-overlay.show {
    opacity: 1;
    pointer-events: all;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--primary-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== 앱 컨테이너 ===== */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
}

/* ===== 헤더 ===== */
.app-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.header-content h1 i {
    margin-right: 0.5rem;
}

.header-info {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* ===== 메인 컨텐츠 ===== */
.main-content {
    flex: 1;
    padding: 1rem;
    padding-bottom: 80px;
}

/* ===== 페이지 전환 ===== */
.page {
    display: none;
    animation: fadeIn 0.3s;
}

.page.active {
    display: block;
}

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

.page-header {
    margin-bottom: 1rem;
}

.page-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

/* ===== Date Navigator ===== */
.date-navigator {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.date-nav-btn {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.date-nav-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.date-nav-btn:active {
    transform: scale(0.95);
}

.date-picker-wrapper {
    flex: 1;
    display: flex;
    gap: 0.5rem;
}

.date-picker-input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    background: white;
    color: var(--text-primary);
    cursor: pointer;
}

.date-picker-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.today-btn {
    padding: 0.75rem 1rem;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Inter', sans-serif;
    white-space: nowrap;
}

.today-btn:hover {
    background: var(--primary-color);
    color: white;
}

.today-btn:active {
    transform: scale(0.95);
}

/* ===== Sales Dates Grid ===== */
.sales-dates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.75rem;
}

.sales-date-card {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.sales-date-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.sales-date-card:active {
    transform: translateY(0);
}

.sales-date-day {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.sales-date-month {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.sales-date-info {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.sales-date-amount {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

/* ===== 통계 카드 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:active {
    transform: scale(0.98);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-card.primary .stat-icon {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    color: white;
}

.stat-card.success .stat-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.stat-card.info .stat-icon {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.stat-card.warning .stat-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ===== 섹션 ===== */
.section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* ===== 빈 상태 ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state p {
    font-size: 0.875rem;
}

/* ===== 서비스 목록 ===== */
.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.service-item {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: background 0.2s;
}

.service-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.service-info {
    flex: 1;
}

.service-lady {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.service-time {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.service-payment {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.service-payment.cash {
    background: #dcfce7;
    color: #166534;
}

.service-payment.etf {
    background: #dbeafe;
    color: #1e40af;
}

.service-amount {
    text-align: right;
}

.service-total {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.service-split {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ===== 폼 ===== */
.form-container {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-group input[type="text"],
.form-group input[type="datetime-local"],
.form-group input[type="date"],
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.2s;
    background: white;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ===== Service Type Buttons ===== */
.service-type-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.service-type-btn {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.service-type-btn i {
    font-size: 1.5rem;
}

.service-type-btn:active {
    transform: scale(0.98);
}

.service-type-btn.selected {
    border-color: var(--primary-color);
    background: var(--primary-light);
    color: var(--primary-dark);
}

/* ===== Duration Grid ===== */
.duration-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.duration-card {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.duration-card:active {
    transform: scale(0.98);
}

.duration-card.selected {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.duration-time {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.duration-price {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.duration-split {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ===== Payment Buttons ===== */
.payment-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.payment-btn {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.payment-btn i {
    font-size: 1.5rem;
}

.payment-btn:active {
    transform: scale(0.98);
}

.payment-btn.selected {
    border-color: var(--primary-color);
    background: var(--primary-light);
    color: var(--primary-dark);
}

/* ===== Buttons ===== */
.btn {
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-secondary {
    background: var(--bg-color);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.form-actions {
    margin-top: 1.5rem;
}

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

/* ===== Input with Button ===== */
.input-with-button {
    display: flex;
    gap: 0.5rem;
}

.input-with-button input {
    flex: 1;
}

.input-with-button .btn {
    flex-shrink: 0;
}

/* ===== Ladies Grid ===== */
.ladies-grid {
    display: grid;
    gap: 0.75rem;
}

.lady-card {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.lady-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.lady-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
}

.lady-name {
    font-weight: 600;
    color: var(--text-primary);
}

.lady-actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background: var(--danger-color);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.icon-btn:active {
    transform: scale(0.95);
}

/* ===== Payment Breakdown ===== */
.payment-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.breakdown-row {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.breakdown-row.highlight {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe8e8 100%);
    border: 2px solid #fecaca;
}

.breakdown-row.highlight-success {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border: 2px solid #86efac;
}

.breakdown-label {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breakdown-label i {
    width: 24px;
    text-align: center;
}

.breakdown-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.breakdown-row.highlight .breakdown-value {
    color: #dc2626;
}

.breakdown-row.highlight-success .breakdown-value {
    color: #16a34a;
}

/* ===== Lady Stats ===== */
.lady-stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.lady-stat-item {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lady-stat-name {
    font-weight: 600;
    color: var(--text-primary);
}

.lady-stat-amount {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* ===== Filter Section ===== */
.filter-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.date-filter {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.date-filter input[type="date"] {
    flex: 1;
    min-width: 150px;
}

/* ===== Export Section ===== */
.export-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.export-section .btn {
    flex: 1;
    min-width: 150px;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
    color: white;
}

/* ===== Detailed Stats ===== */
.detailed-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detailed-stat-card {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1rem;
}

.detailed-stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.detailed-stat-name {
    font-weight: 600;
    color: var(--text-primary);
}

.detailed-stat-total {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
}

.detailed-stat-body {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.stat-detail {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
}

.stat-detail-label {
    color: var(--text-secondary);
}

.stat-detail-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* ===== Bottom Navigation ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    z-index: 100;
    max-width: 600px;
    margin: 0 auto;
}

.nav-item {
    flex: 1;
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
    font-family: 'Inter', sans-serif;
}

.nav-item i {
    font-size: 1.5rem;
}

.nav-item span {
    font-size: 0.75rem;
    font-weight: 500;
}

.nav-item.active {
    color: var(--primary-color);
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--text-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s;
    max-width: calc(100% - 2rem);
    text-align: center;
}

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

/* ===== 반응형 디자인 ===== */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .duration-grid {
        grid-template-columns: 1fr;
    }
    
    .date-filter input[type="date"] {
        width: 100%;
    }
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s;
}

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

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background: var(--bg-color);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-close:hover {
    background: var(--border-color);
}

.modal-body {
    padding: 1.5rem;
}

.service-info-display {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.service-info-display p {
    margin: 0.5rem 0;
    font-size: 0.875rem;
}

.service-info-display strong {
    color: var(--text-secondary);
    display: inline-block;
    width: 100px;
}

.payment-btn-edit {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
    width: 100%;
}

.payment-btn-edit i {
    font-size: 1.5rem;
}

.payment-btn-edit:active {
    transform: scale(0.98);
}

.payment-btn-edit.selected {
    border-color: var(--primary-color);
    background: var(--primary-light);
    color: var(--primary-dark);
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

.modal-footer .btn {
    padding: 0.75rem 1.5rem;
}

/* ===== 스크롤바 스타일 ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}