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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg,rgb(228, 231, 243) 0%,rgb(201, 191, 211) 100%);
    min-height: 100vh;
}

.admin-container {
    display: flex;
    min-height: 100vh;
    backdrop-filter: blur(10px);
}

.sidebar {
    width: 280px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255, 255, 255, 0.18);
    transition: all 0.3s ease;
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar-header {
    padding: 1.2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.sidebar-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.sidebar.collapsed .sidebar-title {
    opacity: 0;
}

.nav-menu {
    padding: 1rem 0;
}

.nav-item {
    margin: 0.5rem 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 1rem;
    color: #4a5568;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link:hover, .nav-link.active {
    background: linear-gradient(135deg,rgb(176, 185, 223) 0%,rgb(171, 157, 185) 100%);
    color: white;
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.nav-link i {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.nav-text {
    margin-left: 1rem;
    font-weight: 500;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.sidebar.collapsed .nav-text {
    opacity: 0;
}

.main-content {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
}

.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    display: flex;
    justify-content: between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.menu-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #4a5568;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.search-box {
    position: relative;
}

.search-box input {
    padding: 12px 20px 12px 45px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    width: 300px;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #a0aec0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.notification {
    position: relative;
    background: none;
    border: none;
    font-size: 1.3rem;
    color: #4a5568;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.notification:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.notification::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: #ef5350;
    border-radius: 50%;
}
.user-profile {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.user-profile:hover {
    background: rgba(102, 126, 234, 0.2);
}

.user-avatar {
    width: 35px;
    height: 35px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.user-profile span {
    font-size: 14px;
    font-weight: 500;
    color: #4a5568;
}

.user-profile i {
    font-size: 12px;
    color: #4a5568;
    transition: transform 0.2s;
}

.user-profile.active i {
    transform: rotate(180deg);
}


.content {
    padding: 2rem;
    height: calc(100vh - 80px);
    overflow-y: auto;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 2rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(31, 38, 135, 0.5);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #718096;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.stat-change {
    font-size: 0.875rem;
    font-weight: 600;
}

.stat-change.positive {
    color: #38a169;
}

.stat-change.negative {
    color: #e53e3e;
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.chart-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.chart-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 1.5rem;
}

.data-table {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
    overflow: hidden;
}

.table-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2d3748;
}

.add-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem 2rem;
    text-align: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

th {
    background: rgba(102, 126, 234, 0.1);
    font-weight: 600;
    color: #4a5568;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    color: #2d3748;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-active {
    background: #c6f6d5;
    color: #276749;
}

.status-inactive {
    background: #fed7d7;
    color: #c53030;
}

.actions {
    display: flex;
    gap: 10px;
}

.action-btn {
    background: none;
    border: none;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.action-btn:hover {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
}

.action-btn.edit {
    color: #38a169;
}

.action-btn.delete {
    color: #e53e3e;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

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

    .sidebar {
        width: 100%;
        height: auto;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .search-box input {
        width: 200px;
    }
}

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

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

.loading {
    text-align: center;
    padding: 2rem;
    color: white;
    font-size: 1.1rem;
}

:root {
    --primary-color: #3498db;
    --secondary-color: #2980b9;
    --light-gray: #f5f5f5;
    --dark-gray: #333;
    --border-color: #ddd;
}

.pagination {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.pagination a {
    color: var(--dark-color);
    padding: 8px 16px;
    text-decoration: none;
    border: 1px solid var(--border-color);
    margin: 0 4px;
    transition: background-color 0.3s;
}

.pagination a.active {
    background-color: #7e478b;
    color: white;
    border: 1px solid #815991;
}

.pagination a:hover:not(.active) {
    background-color: #7e478b;
}
.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
    margin-top: 4px;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    padding: 12px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: background-color 0.2s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.dropdown-item:hover {
    background-color: #f8f9fa;
}

.dropdown-item i {
    font-size: 14px;
    color: #666;
}

.dropdown-item.logout {
    color: #dc3545;
    border-top: 1px solid #e9ecef;
}

.dropdown-item.logout i {
    color: #dc3545;
}

.dropdown-item.logout:hover {
    background-color: #fff5f5;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: white;
}

.edit-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
    overflow: hidden;
}

.edit-header {
    padding: 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.edit-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2d3748;
}

.back-btn {
    background: rgba(102, 126, 234, 0.1);
    color: #4a5568;
    border: none;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.back-btn:hover {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
}

.edit-form {
    padding: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-weight: 600;
    color: #2d3748;
    font-size: 14px;
}

.form-label.required::after {
    content: ' *';
    color: #e53e3e;
}

.form-input {
    padding: 12px 16px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
    font-family: inherit;
}

.form-select {
    padding: 12px 16px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 10px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.9);
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.checkbox-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label {
    font-size: 14px;
    color: #4a5568;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: rgba(102, 126, 234, 0.1);
    color: #4a5568;
}

.btn-secondary:hover {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
}

.btn-danger {
    background: #e53e3e;
    color: white;
}

.btn-danger:hover {
    background: #c53030;
    transform: translateY(-2px);
}

.error-message {
    color: #e53e3e;
    font-size: 12px;
    margin-top: 4px;
}

.profile-image-section {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.current-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    font-weight: bold;
}

.image-upload {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.upload-btn {
    background: rgba(102, 126, 234, 0.1);
    color: #4a5568;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-btn:hover {
    background: rgba(102, 126, 234, 0.2);
}