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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 헤더 */
.main-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav-menu li a:hover {
    opacity: 0.8;
}

.user-menu {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-logout {
    background: rgba(255,255,255,0.2);
    padding: 0.4rem 1rem;
    border-radius: 5px;
    transition: background 0.3s;
}

.btn-logout:hover {
    background: rgba(255,255,255,0.3);
}

/* 메인 컨텐츠 */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* 버튼 */
.btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 1rem;
    font-weight: 500;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

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

.btn-secondary:hover {
    background: #5a6268;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-small {
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-disabled {
    background: #ccc;
    cursor: not-allowed;
}

.btn-disabled:hover {
    transform: none;
    box-shadow: none;
}

/* 알림 메시지 */
.alert {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 5px;
}

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

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

.alert ul {
    margin-left: 1.5rem;
}

/* 히어로 섹션 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 4rem 2rem;
    border-radius: 10px;
    margin-bottom: 3rem;
}

.hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* 상품 그리드 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.product-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #f0f0f0;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #999;
    font-size: 0.9rem;
}

.product-info {
    padding: 1.5rem;
}

.product-category {
    color: #667eea;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.product-info h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.product-description {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: #667eea;
    margin: 1rem 0;
}

.product-stock {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 1rem;
}

.product-actions {
    margin-top: 1rem;
}

/* 특징 섹션 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.feature-box h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.feature-box p {
    color: #666;
}

/* 인증 페이지 */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
}

.auth-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 500px;
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
}

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

.auth-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.auth-form input,
.auth-form textarea,
.auth-form select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.auth-form input:focus,
.auth-form textarea:focus,
.auth-form select:focus {
    outline: none;
    border-color: #667eea;
}

.auth-form small {
    display: block;
    margin-top: 0.3rem;
    color: #666;
    font-size: 0.85rem;
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-footer a {
    color: #667eea;
    font-weight: 500;
}

.demo-account {
    margin-top: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 5px;
    font-size: 0.9rem;
}

.demo-account code {
    background: #e9ecef;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
}

/* 페이지 헤더 */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2rem;
    color: #333;
}

/* 상품 페이지 */
.products-page {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

.sidebar {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    height: fit-content;
}

.filter-section h3 {
    margin-bottom: 1rem;
    color: #333;
}

.category-list {
    list-style: none;
}

.category-list li {
    margin-bottom: 0.5rem;
}

.category-list a {
    display: block;
    padding: 0.5rem;
    color: #666;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

.category-list a:hover,
.category-list a.active {
    background: #667eea;
    color: white;
}

.products-main {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.products-toolbar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.search-box form {
    display: flex;
    gap: 0.5rem;
}

.search-box input {
    padding: 0.6rem 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    width: 300px;
}

.sort-box select {
    padding: 0.6rem 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: #666;
}

/* 상품 상세 */
.product-detail {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.product-detail-image {
    width: 100%;
}

.product-detail-image img {
    width: 100%;
    border-radius: 10px;
}

.no-image-large {
    width: 100%;
    height: 400px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: #999;
}

.breadcrumb {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: #667eea;
    text-decoration: none;
}

.product-detail-info h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #333;
}

.price-section {
    margin: 1.5rem 0;
}

.price-section .price {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
}

.product-meta {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 5px;
    margin: 1.5rem 0;
}

.meta-item {
    margin-bottom: 0.5rem;
}

.in-stock {
    color: #28a745;
    font-weight: 600;
}

.out-of-stock {
    color: #dc3545;
    font-weight: 600;
}

.product-description {
    margin: 2rem 0;
}

.product-description h3 {
    margin-bottom: 1rem;
}

.add-to-cart-form {
    margin: 2rem 0;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.quantity-selector input {
    width: 80px;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.product-actions-links {
    margin-top: 1rem;
}

/* 장바구니 */
.empty-cart {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 10px;
}

.cart-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.cart-items {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.cart-table th {
    background: #f8f9fa;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.cart-table td {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

.cart-product-info {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.cart-product-info img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 5px;
}

.cart-no-image {
    width: 80px;
    height: 80px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    font-size: 0.8rem;
    color: #999;
}

.cart-product-info a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
}

.cart-product-info a:hover {
    color: #667eea;
}

.stock-warning {
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 0.3rem;
}

.quantity-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.quantity-form input {
    width: 60px;
    padding: 0.3rem;
    border: 1px solid #ddd;
    border-radius: 3px;
}

.cart-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
}

.cart-summary {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    height: fit-content;
}

.cart-summary h3 {
    margin-bottom: 1.5rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.summary-row.total {
    font-size: 1.3rem;
    font-weight: bold;
    color: #667eea;
}

.shipping-notice {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
    text-align: center;
}

/* 주문 페이지 */
.checkout-container {
    max-width: 900px;
    margin: 0 auto;
}

.checkout-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.checkout-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #eee;
}

.checkout-section:last-child {
    border-bottom: none;
}

.checkout-section h2 {
    margin-bottom: 1.5rem;
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.payment-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.payment-option:hover {
    border-color: #667eea;
}

.payment-option input:checked + span {
    color: #667eea;
    font-weight: 600;
}

.order-items-table {
    width: 100%;
    border-collapse: collapse;
}

.order-items-table th,
.order-items-table td {
    padding: 0.8rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.order-items-table th {
    background: #f8f9fa;
    font-weight: 600;
}

.payment-summary {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 5px;
}

.checkout-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
}

/* 주문 완료 */
.order-complete-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #28a745;
    color: white;
    font-size: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 2rem;
}

.order-complete-container h1 {
    margin-bottom: 1rem;
    color: #333;
}

.order-info-box,
.order-items-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin: 2rem 0;
    text-align: left;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid #eee;
}

.info-row .label {
    font-weight: 600;
    color: #666;
}

.total-amount {
    font-size: 1.3rem;
    font-weight: bold;
    color: #667eea;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

/* 주문 목록 */
.empty-orders {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 10px;
}

.orders-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.order-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.order-info h3 {
    color: #333;
    margin-bottom: 0.3rem;
}

.order-date {
    color: #666;
    font-size: 0.9rem;
}

.order-status {
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-weight: 600;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

.status-confirmed {
    background: #d1ecf1;
    color: #0c5460;
}

.status-shipped {
    background: #d4edda;
    color: #155724;
}

.status-delivered {
    background: #d4edda;
    color: #155724;
}

.status-cancelled {
    background: #f8d7da;
    color: #721c24;
}

.order-body {
    margin: 1rem 0;
}

.order-detail {
    margin-bottom: 0.5rem;
    color: #666;
}

.order-detail .amount {
    font-size: 1.2rem;
    font-weight: bold;
    color: #667eea;
}

.order-footer {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

/* 주문 상세 */
.order-detail-container {
    max-width: 900px;
    margin: 0 auto;
}

.order-summary-box,
.order-items-section,
.payment-summary-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.order-number {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.order-status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.info-section {
    margin-top: 1rem;
}

.order-item-card {
    display: flex;
    gap: 1.5rem;
    padding: 1rem;
    border: 1px solid #eee;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.item-image {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
}

.item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 5px;
}

.no-image-small {
    width: 100%;
    height: 100%;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    font-size: 0.8rem;
    color: #999;
}

.item-info h3 {
    margin-bottom: 0.5rem;
}

.item-details {
    display: flex;
    gap: 1rem;
    color: #666;
    font-size: 0.9rem;
}

.order-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* 관리자 페이지 */
.admin-container {
    max-width: 1400px;
    margin: 0 auto;
}

.admin-header {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.admin-header h1 {
    margin-bottom: 1rem;
    color: #333;
}

.admin-nav {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.admin-nav a {
    padding: 0.6rem 1.5rem;
    background: #f8f9fa;
    color: #666;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: #667eea;
    color: white;
}

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

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.stat-icon {
    font-size: 3rem;
}

.stat-content h3 {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
}

.admin-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.admin-section h2 {
    margin-bottom: 1.5rem;
    color: #333;
}

.admin-actions {
    margin-bottom: 2rem;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.admin-table th {
    background: #f8f9fa;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid #dee2e6;
}

.admin-table td {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

.admin-product-thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 5px;
}

.admin-no-image {
    width: 60px;
    height: 60px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    color: #999;
}

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

.badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 3px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-primary {
    background: #cfe2ff;
    color: #084298;
}

.badge-secondary {
    background: #e2e3e5;
    color: #41464b;
}

.status-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 3px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* 관리자 폼 */
.admin-form {
    max-width: 800px;
}

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

.admin-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

.admin-form input,
.admin-form textarea,
.admin-form select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.admin-form small {
    display: block;
    margin-top: 0.3rem;
    color: #666;
    font-size: 0.85rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.inline-form {
    display: flex;
    gap: 1rem;
    align-items: end;
}

.inline-form .form-group {
    margin-bottom: 0;
}

/* 주문 상세 (관리자) */
.order-detail-admin {
    max-width: 1000px;
}

.detail-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.detail-section h2 {
    margin-bottom: 1.5rem;
    color: #333;
}

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

.detail-table tr {
    border-bottom: 1px solid #eee;
}

.detail-table th {
    padding: 1rem;
    text-align: left;
    width: 150px;
    font-weight: 600;
    color: #666;
    background: #f8f9fa;
}

.detail-table td {
    padding: 1rem;
}

.price-cell {
    font-size: 1.2rem;
    font-weight: bold;
    color: #667eea;
}

.text-muted {
    color: #999;
}

/* 푸터 */
.main-footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.main-footer p {
    margin: 0.5rem 0;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    .products-page {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .cart-container {
        grid-template-columns: 1fr;
    }
    
    .cart-table {
        font-size: 0.9rem;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-nav {
        flex-direction: column;
    }
}

/* 이미지 플레이스홀더 */
.assets\/images\/no-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
}