/* ==========================================
   AutoOrder 스타일시트
   Version: 1.0.1 - Vercel 배포 최적화
   ========================================== */

/* 전역 스타일 */
:root {
    --primary-color: #28a745;
    --secondary-color: #20c997;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --purple-color: #9c27b0;
    --purple-dark: #6a1b9a;
    --gray-color: #6c757d;
    --gray-light: #868e96;
    --border-color: #e9ecef;
    --gradient-primary: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    --gradient-purple: linear-gradient(135deg, #9c27b0 0%, #6a1b9a 100%);
    --gradient-gray: linear-gradient(135deg, #6c757d 0%, #868e96 100%);
    --gradient-blue: linear-gradient(145deg, #e3f2fd 0%, #bbdefb 100%);
    --gradient-green: linear-gradient(145deg, #e8f5e8 0%, #c8e6c9 100%);
    --gradient-light-purple: linear-gradient(145deg, #f3e5f5 0%, #e1bee7 100%);
    --gradient-light: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
}

/* 로딩 스피너 애니메이션 */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 컨테이너 및 레이아웃 */
.upload-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 20px 0;
}

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

.mode-selection {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 15px;
    margin: 20px 0;
}

/* 모드 선택 옵션 */
.mode-option {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--gradient-light);
}

.mode-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.2);
}

.mode-option input[type="radio"] {
    margin-right: 10px;
    transform: scale(1.2);
}

/* 업로드 영역 */
.upload-area {
    border: 2px dashed var(--gray-color);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    transition: all 0.3s ease;
    background: linear-gradient(145deg, #f1f3f4 0%, #e8eaed 100%);
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: linear-gradient(145deg, #e8f5e8 0%, #d4edda 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.15);
}

.upload-area.drag-over {
    border-color: var(--primary-color);
    background: linear-gradient(145deg, #d4edda 0%, #c3e6cb 100%);
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.2);
}

.upload-icon {
    font-size: 3em;
    color: var(--gray-color);
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.upload-area:hover .upload-icon {
    color: var(--primary-color);
    transform: translateY(-5px);
}

/* 버튼 스타일 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 0.9em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 3px 8px rgba(40, 167, 69, 0.3);
}

.btn-purple {
    background: var(--gradient-purple);
    color: white;
    box-shadow: 0 3px 8px rgba(156, 39, 176, 0.3);
}

.btn-gray {
    background: var(--gradient-gray);
    color: white;
    box-shadow: 0 3px 8px rgba(108, 117, 125, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #4caf50 0%, #43a047 100%);
    color: white;
    box-shadow: 0 3px 8px rgba(76, 175, 80, 0.3);
}

.btn-info {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
    color: white;
    box-shadow: 0 3px 8px rgba(23, 162, 184, 0.3);
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107 0%, #fd7e14 100%);
    color: white;
    box-shadow: 0 3px 8px rgba(255, 193, 7, 0.3);
}

.btn-small {
    padding: 10px 20px;
    font-size: 0.9em;
}

.btn-full-width {
    width: 100%;
}

/* 정보 박스 스타일 */
.info-box {
    padding: 20px;
    border-radius: 8px;
    border: 2px solid;
    margin-bottom: 20px;
}

.info-box-blue {
    background: var(--gradient-blue);
    border-color: #2196f3;
}

.info-box-green {
    background: var(--gradient-green);
    border-color: #4caf50;
}

.info-box-purple {
    background: var(--gradient-light-purple);
    border-color: var(--purple-color);
}

.info-box-title {
    margin-bottom: 15px;
    text-align: center;
    font-weight: 600;
}

.info-box-blue .info-box-title {
    color: #1976d2;
}

.info-box-green .info-box-title {
    color: #2e7d32;
}

.info-box-purple .info-box-title {
    color: #4a148c;
}

/* 폼 관련 스타일 */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group.vertical {
    display: flex;
    flex-direction: column;
}

.form-control {
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1em;
    outline: none;
    transition: all 0.3s ease;
    background-color: #ffffff;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.form-label {
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--gray-color);
}

.form-label.required {
    color: var(--danger-color);
}

.form-label.required::after {
    content: " *";
    color: red;
}

/* 검색 관련 스타일 */
.search-container {
    margin-bottom: 20px;
}

.search-input-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.search-input {
    flex: 1;
    padding: 12px;
    border: 2px solid var(--purple-color);
    border-radius: 8px;
    font-size: 1em;
    outline: none;
    transition: all 0.3s ease;
    background-color: #ffffff;
}

.search-result {
    margin-top: 10px;
    font-size: 0.9em;
    text-align: center;
}

/* 템플릿 카드 관련 */
.template-cards {
    max-height: 300px;
    overflow-y: auto;
}

.template-buttons {
    text-align: center;
    margin-top: 15px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* 로딩 애니메이션 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--purple-color);
    border-radius: 50%;
    border-top: 2px solid transparent;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

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

.loading-message {
    text-align: center;
    color: #7b1fa2;
    margin: 20px 0;
}

/* 빈 상태 메시지 */
.empty-state {
    display: none;
    text-align: center;
    color: var(--purple-dark);
    margin: 20px 0;
}

.empty-state-icon {
    font-size: 3em;
    margin-bottom: 15px;
}

/* 매핑 관련 스타일 */
.mapping-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    align-items: start;
    margin: 20px 0;
}

.mapping-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
}

/* 필드 관련 스타일 */
.field-container {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    background: #ffffff;
    min-height: 300px;
}

.field-item {
    padding: 12px;
    margin: 5px 0;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #ffffff;
}

.field-item:hover {
    background-color: #f8f9fa;
    border-color: var(--primary-color);
}

.field-item.selected {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 알림 및 상태 */
.alert {
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
    border: 1px solid transparent;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.alert-error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

/* 진행률 표시 */
.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.progress-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    min-width: 300px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.progress-bar {
    width: 100%;
    height: 20px;
    background-color: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    margin: 15px 0;
}

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

/* 파일 입력 스타일 */
.file-input {
    position: absolute;
    opacity: 0;
    width: 0.1px;
    height: 0.1px;
    z-index: -1;
    overflow: hidden;
}

/* 모드 컨테이너 */
.mode-container {
    transition: all 0.3s ease;
}

/* 숨김 클래스 */
.hidden {
    display: none !important;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .mode-selection {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .upload-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .mapping-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .template-buttons {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .mode-selection {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 0.8em;
    }
}

/* ==========================================
   HTML에서 이동한 추가 스타일들
   ========================================== */

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

/* 기본 body 스타일 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #4a4a4a 100%);
    min-height: 100vh;
    padding: 15px;
}

/* 메인 컨테이너 */
.container {
    max-width: 900px;
    margin: 0 auto;
    background: linear-gradient(145deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
    overflow: hidden;
    border: 1px solid #dee2e6;
}

/* 헤더 스타일 */
.header {
    background: linear-gradient(135deg, #212529 0%, #495057 50%, #6c757d 100%);
    color: #f8f9fa;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    pointer-events: none;
}

.header h1 {
    font-size: 2em;
    margin-bottom: 8px;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.header p {
    font-size: 1em;
    opacity: 0.9;
}



/* 메인 콘텐츠 */
.main-content {
    padding: 20px;
}

/* 스텝 스타일 */
.step {
    margin-bottom: 25px;
    padding: 20px;
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 8px;
    border-left: 4px solid #495057;
    box-shadow: 0 3px 8px rgba(0,0,0,0.1);
}

.step h3 {
    color: #212529;
    margin-bottom: 12px;
    font-size: 1.1em;
    font-weight: 600;
}

/* 업로드 결과 및 컨테이너 */
.upload-result {
    padding: 15px;
    border-radius: 8px;
    background: #ffffff;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.upload-icon {
    font-size: 2em;
    color: #6c757d;
    margin-bottom: 12px;
    font-weight: 300;
}

/* 테이블 스타일 */
.preview-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.preview-table th,
.preview-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.preview-table th {
    background: linear-gradient(135deg, #495057 0%, #6c757d 100%);
    color: white;
    font-weight: 600;
}

.preview-table tr:hover {
    background: #f8f9fa;
}

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

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

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

/* 매뉴얼 필드 */
#manualFieldsSection {
    animation: slideDown 0.3s ease-out;
}

.manual-field-input {
    transition: all 0.3s ease;
}

.manual-field-input:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* 매핑 컨테이너 수정 */
.mapping-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 15px;
    align-items: center;
    margin: 15px 0;
}

.field-list {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    min-height: 160px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
}

.field-item {
    padding: 6px 10px;
    margin: 4px 0;
    background: #f8f9fa;
    border-radius: 4px;
    border: 1px solid #e9ecef;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9em;
}

.field-item:hover {
    background: #e9ecef;
}

.field-item.selected {
    background: linear-gradient(135deg, #495057 0%, #6c757d 100%);
    color: white;
}

.arrow {
    font-size: 2em;
    color: #6c757d;
    text-align: center;
    font-weight: 300;
}

/* 이메일 폼 */
.email-form {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.15);
    border: 1px solid #e9ecef;
}

.form-group {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.form-group label {
    min-width: 120px;
    margin-bottom: 0;
    font-weight: 600;
    color: #495057;
    flex-shrink: 0;
}

.form-group .form-control {
    flex: 1;
}

.form-group.vertical {
    flex-direction: column;
    align-items: flex-start;
}

.form-group.vertical label {
    min-width: auto;
    margin-bottom: 5px;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    font-size: 0.9em;
}

.form-control:focus {
    border-color: #6c757d;
    outline: none;
    box-shadow: 0 0 0 2px rgba(108, 117, 125, 0.25);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* 알림 스타일 수정 */
.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* 프로그레스 바 */
.progress-bar {
    width: 100%;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    margin: 20px 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #495057 0%, #6c757d 100%);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    min-width: 320px;
    max-width: 500px;
}

.progress-wrapper {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
}

.progress-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.9em;
}

.progress-text #progressMessage {
    color: #495057;
    font-weight: 500;
}

.progress-text #progressPercent {
    color: #28a745;
    font-weight: bold;
}

.progress-container .progress-bar {
    margin: 0;
    height: 6px;
    border-radius: 3px;
}

.progress-container .progress-fill {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    border-radius: 3px;
}

/* 필수 필드 정보 */
.required-fields-info {
    margin-top: 25px;
    padding: 20px;
    background: linear-gradient(145deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.required-fields-info h4 {
    margin-bottom: 10px;
    color: #495057;
    font-weight: 600;
}

.required-fields-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 15px 0;
}

.field-tag {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.9em;
    font-weight: 500;
    border: 1px solid;
}

.field-tag.required {
    background: #fff3cd;
    color: #856404;
    border-color: #ffeaa7;
}

.field-tag.optional {
    background: #d1ecf1;
    color: #0c5460;
    border-color: #bee5eb;
}

.field-note {
    font-size: 0.85em;
    color: #6c757d;
    margin-top: 10px;
    font-style: italic;
}

/* 고정 버튼들 */
.error-report-btn {
    position: fixed;
    bottom: 30px;
    right: 10px;
    z-index: 1000;
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.7) 0%, rgba(200, 35, 51, 0.7) 100%);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(220, 53, 69, 0.2);
    transition: all 0.3s ease;
}

.error-report-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
    background: linear-gradient(135deg, rgba(200, 35, 51, 0.8) 0%, rgba(167, 30, 42, 0.8) 100%);
}

.error-report-btn:active {
    transform: scale(1);
}

.user-guide-btn {
    position: fixed;
    bottom: 80px;
    right: 10px;
    z-index: 1000;
    background: linear-gradient(135deg, rgba(108, 117, 125, 0.7) 0%, rgba(73, 80, 87, 0.7) 100%);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(108, 117, 125, 0.2);
    transition: all 0.3s ease;
}

.user-guide-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.3);
    background: linear-gradient(135deg, rgba(73, 80, 87, 0.8) 0%, rgba(52, 58, 64, 0.8) 100%);
}

.user-guide-btn:active {
    transform: scale(1);
}

/* 로딩 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #495057;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* 이메일 히스토리 */
.email-history {
    margin-top: 20px;
}

.history-item {
    background: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    padding: 12px;
    margin-bottom: 8px;
    border-radius: 6px;
    border-left: 3px solid #6c757d;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    transition: transform 0.2s ease;
    font-size: 0.9em;
}

.history-item:hover {
    transform: translateX(5px);
}

.history-item.failed {
    border-left-color: #dc3545;
}

.history-time {
    font-size: 0.9em;
    color: #6c757d;
}

.history-checkbox {
    transform: scale(1.2);
    margin-right: 10px;
}

.history-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding: 10px;
    background: linear-gradient(145deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 라디오 그룹 */
.radio-group {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.radio-item {
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    min-width: fit-content;
}

.radio-item input[type="radio"] {
    margin: 0;
    flex-shrink: 0;
}

.radio-item label {
    margin: 0;
    cursor: pointer;
    font-size: 0.9em;
    flex-shrink: 0;
}

/* 모드 선택 향상 */
.mode-option {
    transition: all 0.3s ease;
}

.mode-option:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    border-color: #495057;
}

.mode-option input[type="radio"]:checked + div {
    color: #fff;
}

.mode-option:has(input[type="radio"]:checked) {
    border-color: #495057;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(73, 80, 87, 0.3);
}

.mode-option:has(input[type="radio"]:checked) strong {
    color: #fff;
}

.mode-option:has(input[type="radio"]:checked) div div {
    color: #e9ecef;
}

/* 빠른 시간 선택 */
.quick-time-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.quick-time-btn {
    transition: all 0.2s ease;
    border-radius: 6px;
    font-weight: 500;
}

.quick-time-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

#scheduleTimeGroup {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

#scheduleTimeGroup:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* 반응형 - 큰 화면부터 작은 화면까지 덮어쓰기 */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        border-radius: 10px;
    }
    
    /* 헤더 모바일 최적화 */
    .header {
        padding: 15px;
    }
    
    .header div[style*="display: flex; justify-content: space-between"] {
        flex-direction: column !important;
        align-items: center !important;
        gap: 15px;
    }
    
    /* 사용량 표시 상자 모바일 최적화 */
    #usageContainer {
        min-width: auto !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 10px 12px !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }
    
    #usageContainer div[style*="display: flex; flex-direction: column"] {
        gap: 3px !important;
    }
    
    #usageContainer div[style*="display: flex; align-items: center"] {
        gap: 4px !important;
    }
    
    #usageContainer div[style*="display: flex; gap: 8px"] {
        gap: 6px !important;
        font-size: 0.75em !important;
    }
    
    #usageContainer span {
        font-size: 0.8em !important;
    }
    
    #usageContainer div[style*="font-size: 0.7em"] {
        font-size: 0.65em !important;
    }
    
    .upload-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .mapping-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .arrow {
        transform: rotate(90deg);
    }
    
    .stats {
        grid-template-columns: 1fr;
    }

    .mode-selection {
        grid-template-columns: 1fr !important;
    }
    
    .radio-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        margin-top: 15px;
    }
    
    .radio-item {
        width: 100%;
        padding: 8px 12px;
        background: rgba(248, 249, 250, 0.8);
        border-radius: 6px;
        border: 1px solid #e9ecef;
        gap: 12px;
    }
    
    .radio-item label {
        font-size: 1em;
        font-weight: 500;
    }
    
    .radio-item input[type="radio"] {
        transform: scale(1.3);
    }
    
    [style*="grid-template-columns: 1fr 1fr 1fr 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }
    
    [style*="grid-template-columns: 1fr 1fr 1fr"]:not([style*="1fr 1fr 1fr 1fr"]) {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }
    
    [style*="grid-template-columns: 1fr 1fr"]:not([style*="1fr 1fr 1fr"]) {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }

    #scheduleTimeGroup {
        margin: 10px 0 !important;
        padding: 12px !important;
    }

    .quick-time-buttons {
        gap: 6px;
    }
    
    .quick-time-btn {
        padding: 6px 10px !important;
        font-size: 0.8em !important;
        flex: 1;
        min-width: calc(50% - 3px);
    }
    
    #selectedTimeDisplay {
        font-size: 0.85em !important;
        padding: 8px !important;
    }
}

/* 더 작은 모바일 화면 (480px 이하) 추가 최적화 */
@media (max-width: 480px) {
    .header {
        padding: 12px;
    }
    
    .header h1 {
        font-size: 1.5em !important;
        letter-spacing: 1px !important;
    }
    
    .header p {
        font-size: 0.9em !important;
    }
    
    /* 사용량 표시 상자 더 작은 화면 최적화 */
    #usageContainer {
        padding: 8px 10px !important;
        border-radius: 6px !important;
    }
    
    #usageContainer div[style*="display: flex; gap: 8px"] {
        gap: 4px !important;
        font-size: 0.7em !important;
        flex-wrap: wrap;
    }
    
    #usageContainer span {
        font-size: 0.75em !important;
    }
    
    #usageContainer div[style*="font-size: 0.7em"] {
        font-size: 0.6em !important;
        margin-top: 2px !important;
    }
    
    /* 이메일 전송 이력 안내 박스 모바일 최적화 */
    .email-history div[style*="background: linear-gradient(145deg, #e8f5e8"] {
        padding: 10px 12px !important;
        margin-bottom: 12px !important;
    }
    
    .email-history div[style*="background: linear-gradient(145deg, #e8f5e8"] div {
        font-size: 0.8em !important;
        line-height: 1.3 !important;
    }
}