/* 공통 스타일 - 디자인 통일성을 위한 CSS 변수 및 컴포넌트 */

:root {
    /* 메인 컬러 */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-dark: #764ba2;
    
    /* 액센트 컬러 */
    --accent-gradient: linear-gradient(45deg, #FF6B6B, #FF8E53);
    --accent-color: #FF6B6B;
    --accent-light: #FF8E53;
    
    /* 포인트 컬러 */
    --point-gradient: linear-gradient(45deg, #FFD700, #FFA500);
    --point-color: #FFD700;
    
    /* 성공/정보 컬러 */
    --success-color: #48bb78;
    --info-color: #4299e1;
    --warning-color: #ed8936;
    --danger-color: #e53e3e;
    
    /* 배경 컬러 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    
    /* 텍스트 컬러 */
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    
    /* 그림자 */
    --shadow-sm: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-md: 0 8px 25px rgba(0,0,0,0.12);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.15);
    
    /* 반경 */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 20px;
    
    /* 폰트 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-serif: 'Noto Serif KR', serif;
    
    /* 스페이싱 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

/* 페이지 기본 스타일 */
.page-container {
    min-height: calc(100vh - 80px);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 2rem 0;
}

.page-header {
    text-align: center;
    margin-bottom: 3rem;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* 통일된 카드 스타일 */
.unified-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(102, 126, 234, 0.1);
    overflow: hidden;
}

.unified-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.unified-card-header {
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-md);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.unified-card-footer {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-top: 1px solid rgba(0,0,0,0.05);
}

/* 통일된 버튼 스타일 */
.unified-btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-family: var(--font-family);
    text-align: center;
    justify-content: center;
    min-width: 120px;
}

.unified-btn-primary {
    background: var(--primary-gradient);
    color: white;
}

.unified-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    color: white;
}

.unified-btn-accent {
    background: var(--accent-gradient);
    color: white;
}

.unified-btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
    color: white;
}

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

.unified-btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(72, 187, 120, 0.4);
    color: white;
}

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

.unified-btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(237, 137, 54, 0.4);
    color: white;
}

.unified-btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.unified-btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    min-width: 80px;
}

.unified-btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    min-width: 150px;
}

/* 통일된 폼 스타일 */
.unified-form-group {
    margin-bottom: var(--spacing-md);
}

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

.unified-form-input,
.unified-form-select,
.unified-form-textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: var(--font-family);
}

.unified-form-input:focus,
.unified-form-select:focus,
.unified-form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* 통일된 알림 스타일 */
.unified-alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.unified-alert-info {
    background: rgba(66, 153, 225, 0.1);
    color: #2b6cb0;
    border-color: rgba(66, 153, 225, 0.2);
}

.unified-alert-success {
    background: rgba(72, 187, 120, 0.1);
    color: #2f855a;
    border-color: rgba(72, 187, 120, 0.2);
}

.unified-alert-warning {
    background: rgba(237, 137, 54, 0.1);
    color: #c05621;
    border-color: rgba(237, 137, 54, 0.2);
}

.unified-alert-danger {
    background: rgba(229, 62, 62, 0.1);
    color: #c53030;
    border-color: rgba(229, 62, 62, 0.2);
}

/* 통일된 배지 스타일 */
.unified-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.unified-badge-primary {
    background: var(--primary-color);
    color: white;
}

.unified-badge-accent {
    background: var(--accent-color);
    color: white;
}

.unified-badge-success {
    background: var(--success-color);
    color: white;
}

.unified-badge-warning {
    background: var(--warning-color);
    color: white;
}

.unified-badge-info {
    background: var(--info-color);
    color: white;
}

.unified-badge-secondary {
    background: #6c757d;
    color: white;
}

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

.unified-badge-dark {
    background: #343a40;
    color: white;
}

.unified-badge-new {
    background: var(--accent-gradient);
    color: white;
    animation: pulse 2s infinite;
}

/* 통일된 테이블 스타일 */
.unified-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.unified-table th,
.unified-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.unified-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.unified-table-hover tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* 통일된 리스트 스타일 */
.unified-list {
    background: var(--bg-card);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.unified-list-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: background-color 0.3s ease;
}

.unified-list-item:hover {
    background: rgba(102, 126, 234, 0.05);
}

.unified-list-item:last-child {
    border-bottom: none;
}

/* 통일된 스탯 카드 */
.unified-stat-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.unified-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.unified-stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.unified-stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* 반응형 유틸리티 */
.unified-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.unified-grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

.unified-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.unified-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* 유틸리티 클래스 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }

.bg-primary { background: var(--primary-gradient); }
.bg-secondary { background: var(--bg-secondary); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.rounded { border-radius: var(--border-radius-sm); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-xl { border-radius: var(--border-radius-xl); }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* 애니메이션 */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* 통일된 모달 스타일 */
.unified-modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
}

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

.unified-modal-dialog {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.unified-modal.show .unified-modal-dialog {
    transform: scale(1);
}

.unified-modal-header {
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.unified-modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    flex-grow: 1;
}

.unified-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.unified-modal-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.unified-modal-body {
    padding: var(--spacing-lg);
}

.unified-modal-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid #e2e8f0;
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

/* 통일된 스피너 스타일 */
.unified-spinner {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

.unified-spinner-sm {
    width: 1rem;
    height: 1rem;
    border-width: 2px;
}

.unified-spinner-lg {
    width: 3rem;
    height: 3rem;
    border-width: 4px;
}

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

.unified-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    text-align: center;
}

.unified-loading-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .unified-container {
        padding: 0 var(--spacing-sm);
    }
    
    .unified-card-body {
        padding: var(--spacing-md);
    }
    
    .unified-btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .unified-grid-2,
    .unified-grid-3,
    .unified-grid-4 {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .unified-stat-number {
        font-size: 2rem;
    }
    
    .unified-modal-dialog {
        max-width: 90%;
        margin: 1rem;
    }
    
    .unified-modal-footer {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .unified-modal-footer .unified-btn {
        width: 100%;
    }
}

@media (max-width: 992px) {
    .unified-grid-3,
    .unified-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}