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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #1a1a1a;
    color: #ffffff;
}

.gallery-container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    padding: 20px;
    background: #1a1a1a;
    border-bottom: 1px solid #333;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

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

.register-btn {
    padding: 10px 20px;
    background-color: #00ff88;
    color: #1a1a1a;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.register-btn:hover {
    background-color: #00cc6a;
    transform: translateY(-2px);
}

.gallery-title {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    margin: 0;
}

.controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.search-bar {
    position: relative;
    display: flex;
    align-items: center;
    background: #2a2a2a;
    border-radius: 20px;
    padding: 8px 15px;
    width: 400px;
}

.search-bar input {
    width: 100%;
    padding: 12px 48px 12px 12px;
    border-radius: 5px;
    border: 1px solid #333;
    background-color: #2a2a2a;
    color: white;
    font-size: 16px;
}

.search-bar i {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    pointer-events: auto;
    cursor: pointer;
}

.filter-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding: 10px 0;
}

.categories {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.sort-section {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-select {
    padding: 8px 16px;
    border-radius: 5px;
    background-color: #2a2a2a;
    border: 1px solid #333;
    color: white;
    cursor: pointer;
}

.category {
    padding: 8px 16px;
    border-radius: 20px;
    background-color: #2a2a2a;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.category:hover {
    background-color: #3a3a3a;
}

.category.active {
    background-color: #4a4a4a;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.item-card {
    background-color: #2a2a2a;
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.item-card:hover {
    transform: translateY(-5px);
}

.item-image {
    position: relative;
    padding-top: 75%;
    overflow: hidden;
}

.item-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.item-info {
    position: relative;
    display: flex;
    flex-direction: column;
    padding-bottom: 10px;
}

.item-title {
    font-size: 16px;
    font-weight: bold;
    padding: 2px 10px;
    margin-bottom: 4px;
}

.item-category {
    font-size: 14px;
    color: #888;
    padding: 2px 10px;
    margin-bottom: 4px;
}

.item-price {
    font-size: 14px;
    color: #00ff88;
    padding: 2px 10px;
    margin-bottom: 0;
}

.item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 10px;
}

.tag {
    padding: 4px 8px;
    background-color: #3a3a3a;
    border-radius: 4px;
    font-size: 12px;
    color: #ccc;
}

.item-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 10px;
    background: #2a2a2a;
    padding: 10px 14px 0 0;
    border-top: 1px solid #333;
}

.download-button {
    padding: 8px 16px;
    background-color: #1565C0;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.download-button:hover {
    background-color: #0D47A1;
}

.download-button .download-text {
    font-size: 14px;
    color: #fff;
    margin-right: 2px;
}

.download-button .download-count {
    font-size: 13px;
    color: #00ff88;
    margin-left: 2px;
    min-width: 18px;
    text-align: right;
}

.download-button i {
    margin-right: 6px;
}

.edit-button, .delete-button {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.edit-button {
    background-color: #1565C0;
    color: #ffffff;
}

.edit-button:hover {
    background-color: #0D47A1;
    transform: translateY(-2px);
}

.edit-button i {
    font-size: 16px;
    margin-right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.delete-button {
    background-color: #ff5252;
    color: white;
}

.delete-button:hover {
    background-color: #ff1744;
    transform: translateY(-2px);
}

.delete-button i {
    font-size: 16px;
    margin-right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
}

.modal-content {
    position: relative;
    background-color: #2a2a2a;
    margin: 50px auto;
    padding: 20px;
    width: 90%;
    max-width: 1200px;
    border-radius: 8px;
    max-height: 90vh;
    overflow-y: auto;
}

.close-button {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 24px;
    color: #fff;
    cursor: pointer;
}

.preview-container {
    display: flex;
    gap: 20px;
}

#preview-canvas {
    flex: 1;
    min-height: 500px;
    background-color: #1a1a1a;
    border-radius: 8px;
}

.preview-info {
    flex: 1;
    padding: 20px;
}

.preview-info h2 {
    margin-bottom: 10px;
}

.preview-info p {
    color: #ccc;
    margin-bottom: 20px;
}

.preview-controls {
    display: flex;
    gap: 10px;
}

.action-button {
    padding: 10px 20px;
    background-color: #00ff88;
    color: #1a1a1a;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.action-button:hover {
    background-color: #00cc6a;
    transform: translateY(-2px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #ccc;
    font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #555;
    border-radius: 4px;
    background-color: #2a2a2a;
    color: white;
    font-size: 14px;
}

.form-group input[type="text"]:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: #777;
}

.form-group input[type="text"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00ff88;
    box-shadow: 0 0 0 2px rgba(0, 255, 136, 0.2);
}

.form-group input[type="text"].error,
.form-group select.error {
    border-color: #ff4444;
    box-shadow: 0 0 0 2px rgba(255, 68, 68, 0.2);
}

.form-group .error-message {
    color: #ff4444;
    font-size: 12px;
    margin-top: 4px;
    display: none;
}

.form-group .error-message.show {
    display: block;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.cancel-button {
    padding: 10px 20px;
    background-color: #666;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cancel-button:hover {
    background-color: #888;
}

.ai-button {
    background-color: #3498db;
}

.ai-button:hover {
    background-color: #2980b9;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1a1a;
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #444;
}

.loading {
    text-align: center;
    padding: 20px;
    color: #ccc;
}

.error-message {
    text-align: center;
    padding: 20px;
    color: #e74c3c;
}

.no-items {
    text-align: center;
    padding: 40px;
    color: #ccc;
    font-size: 18px;
}

/* 카테고리 버튼 그룹 스타일 */
.btn-category-group {
  display: flex;
  gap: 20px;
  margin: 30px 0 20px 0;
}

.btn.btn-category {
    padding: 8px 16px;
    border-radius: 20px;
    background-color: #2a2a2a;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    color: #fff;
    border: none;
    font-weight: 400;
}

.btn.btn-category:hover {
    background-color: #3a3a3a;
}

.btn.btn-category.active,
.btn.btn-category:focus {
    background-color: #4a4a4a;
    color: #fff;
}

.snackbar {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: #222;
    color: #fff;
    padding: 14px 28px;
    border-radius: 6px;
    font-size: 1.1em;
    z-index: 9999;
    opacity: 0.95;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    display: none;
}
.snackbar.show {
    display: block;
}

.form-group input[type="checkbox"] {
    margin-right: 8px;
    transform: scale(1.2);
    accent-color: #00ff88;
}