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

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

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

header {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 28px;
    color: #2c3e50;
    margin: 0;
}

.back-link {
    text-decoration: none;
    color: #3498db;
    margin-right: 10px;
}

.back-link:hover {
    text-decoration: underline;
}

main {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

.section-header h2 {
    font-size: 24px;
    color: #2c3e50;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.years-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.year-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.year-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.year-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #2c3e50;
}

.year-card .year-meta {
    color: #7f8c8d;
    font-size: 14px;
}

.actions-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filters {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input, .filter-select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.search-input {
    flex: 1;
    min-width: 200px;
}

.filter-select {
    min-width: 150px;
}

.inventory-list {
    display: grid;
    gap: 15px;
}

.inventory-item {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 15px;
    align-items: center;
}

.inventory-item-image {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
    background: #ddd;
}

.inventory-item-info {
    flex: 1;
}

.inventory-item-info h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: #2c3e50;
}

.inventory-item-info p {
    color: #7f8c8d;
    font-size: 14px;
    margin: 2px 0;
}

.inventory-item-actions {
    display: flex;
    gap: 5px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    overflow: auto;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.modal-large {
    max-width: 800px;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 20px;
    top: 15px;
}

.close:hover {
    color: #000;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
}

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

#scanner-container {
    text-align: center;
}

#video {
    width: 100%;
    max-width: 640px;
    border-radius: 8px;
    background: #000;
}

#canvas {
    display: none;
}

#scanner-status {
    margin-top: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 4px;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #7f8c8d;
}

.error {
    background: #fee;
    color: #c33;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.success {
    background: #efe;
    color: #3c3;
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.message {
    padding: 10px 15px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.message-error {
    background: #fee;
    color: #c33;
}

.message-success {
    background: #efe;
    color: #3c3;
}

#manualEanInput input {
    text-align: center;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
}