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

body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    padding: 20px;
}

nav button {
    padding: 10px 20px;
    margin: 0 10px;
    border: none;
    background: #007bff;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}

nav button:hover {
    background: #0056b3;
}

.page {
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.auction-card {
    border: 1px solid #ddd;
    padding: 15px;
    margin: 10px 0;
    border-radius: 5px;
}

.price-info {
    background: #e8f5e8;
    padding: 15px;
    border-radius: 8px;
    margin: 10px 0;
}

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

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

.card-button {
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    font-size: 0.9em;
    cursor: pointer;
    background: #6f42c1;
}

.wide-button {
    width: 100%;
    padding: 15px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
}

.wide-button:hover {
    background: #218838;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.category-badge {
    display: inline-block;
    background: #007bff;
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.8em;
    margin-right: 5px;
}

.category-badge.sub {
    background: #28a745;
    font-size: 0.7em;
}

.filter-btn.active,
.purchase-tab.active {
    background-color: #adb5bd !important;
}

.image-preview-container {
    position: relative;
}

.preview-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 5px;
    border: 1px solid #ddd;
}

.remove-image-btn {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #dc3545;
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    cursor: pointer;
    font-size: 12px;
    font-weight: bold;
    padding: 0;
    line-height: 1;
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .filter-btn, .purchase-tab {
        margin: 2px;
    }
}