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

:root {
    --primary: #DC2626;
    --primary-dark: #B91C1C;
    --secondary: #1F2937;
    --text-dark: #111827;
    --text-light: #6B7280;
    --bg-light: #F9FAFB;
    --white: #FFFFFF;
    --border: #E5E7EB;
    --success: #10B981;
    --error: #EF4444;
}

body {
    font-family: 'Manrope', sans-serif;
    background: linear-gradient(135deg, #791610 0%, #c81618 100%);
    background-attachment: fixed;
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    padding: 24px 20px;
    background: var(--white);
    border-radius: 16px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.logo-main {
    height: 70px;
    width: auto;
    object-fit: contain;
}

.logo {
    height: 80px;
    width: auto;
    object-fit: contain;
}

.header-text {
    text-align: left;
}

.header-with-logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.admin-logo {
    height: 70px;
    width: auto;
    object-fit: contain;
}

.login-logo {
    height: 100px;
    width: auto;
    object-fit: contain;
    margin-bottom: 24px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    font-weight: 500;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.search-section {
    width: 100%;
    max-width: 600px;
    background: var(--white);
    padding: 32px;
    border-radius: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.search-title {
    text-align: center;
    margin-bottom: 24px;
}

.search-title h2 {
    font-size: 1.375rem;
    color: var(--secondary);
    margin-bottom: 6px;
    font-weight: 700;
}

.search-title p {
    color: var(--text-light);
    font-size: 0.9375rem;
}

.input-wrapper {
    margin-bottom: 20px;
}

.input-label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 10px;
    padding-left: 4px;
}

.input-group {
    display: flex;
    gap: 10px;
}

.input-group input {
    flex: 1;
    padding: 14px 20px;
    border: 4px solid var(--primary);
    border-radius: 12px;
    font-size: 1rem;
    font-family: 'Manrope', sans-serif;
    transition: border-color 0.3s, box-shadow 0.3s, transform 0.2s;
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-dark);
    box-shadow: 0 0 0 5px rgba(220, 38, 38, 0.2);
    transform: translateY(-2px);
}

.input-group input::placeholder {
    color: #9CA3AF;
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Manrope', sans-serif;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
    opacity: 1 !important;
    visibility: visible !important;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--primary) !important;
    color: var(--white) !important;
    min-width: 140px;
}

.btn-primary:hover {
    background: var(--primary-dark) !important;
}

.btn-secondary {
    background: var(--secondary) !important;
    color: var(--white) !important;
}

.btn-secondary:hover {
    background: #111827 !important;
}

.btn-scan {
    width: 100%;
    background: var(--white) !important;
    color: var(--secondary) !important;
    border: 3px solid var(--secondary) !important;
    font-size: 1.125rem;
    padding: 20px;
}

.btn-scan:hover {
    background: var(--secondary) !important;
    color: var(--white) !important;
}

.btn-danger {
    background: var(--error);
    color: var(--white);
}

.btn-danger:hover {
    background: #DC2626;
}

.divider {
    text-align: center;
    position: relative;
    margin: 32px 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--border);
}

.divider span {
    position: relative;
    background: var(--white);
    padding: 0 20px;
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.scanner-container {
    margin-top: 24px;
}

#reader {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
    border: 2px solid var(--border);
}

.result-section {
    width: 100%;
    max-width: 700px;
    animation: fadeIn 0.4s ease-in;
}

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

.product-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 24px;
}

.product-image-wrapper {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    margin: 0 auto;
    border-radius: 12px;
    flex-shrink: 0;
}

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

.product-category {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--primary);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.product-category-tag {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.product-info {
    padding: 32px;
}

.product-info h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 20px;
    line-height: 1.3;
}

.product-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-label {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-value {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.meta-item .label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.meta-item span:last-child {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.product-description {
    font-size: 1rem;
    color: var(--text-dark);
    line-height: 1.7;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 12px;
    border-left: 4px solid var(--primary);
}

.product-price {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    padding: 24px;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.05) 0%, rgba(220, 38, 38, 0.1) 100%);
    border-radius: 12px;
}

.error-section {
    width: 100%;
    max-width: 500px;
    animation: fadeIn 0.4s ease-in;
}

.error-card {
    background: var(--white);
    padding: 48px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.error-card svg {
    color: var(--error);
    margin-bottom: 24px;
}

.error-card h3 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: 12px;
}

.error-card p {
    color: var(--text-light);
    margin-bottom: 24px;
    font-size: 1.125rem;
}

footer {
    text-align: center;
    padding: 24px;
    color: white;
    margin-top: 40px;
}

footer p {
    color: white;
}

.login-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    background: var(--white);
    padding: 48px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 450px;
    width: 100%;
    text-align: center;
}

.login-card h1 {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 8px;
}

.login-card p {
    color: var(--text-light);
    margin-bottom: 32px;
}

.error-text {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 12px;
    font-weight: 500;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

.admin-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    gap: 20px;
    flex-wrap: wrap;
}

.search-box {
    flex: 1;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 12px 20px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1rem;
    font-family: 'Manrope', sans-serif;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.3s ease-in;
}

.modal-content {
    background: var(--white);
    border-radius: 20px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.5rem;
    color: var(--secondary);
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.close-btn:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

#productForm {
    padding: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Manrope', sans-serif;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 32px;
}

.products-table {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

thead {
    background: var(--secondary);
    color: var(--white);
}

thead th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background-color 0.2s;
}

tbody tr:hover {
    background: var(--bg-light);
}

tbody td {
    padding: 16px;
    color: var(--text-dark);
}

.product-thumb {
    width: 60px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.action-btns {
    display: flex;
    gap: 8px;
}

.action-btns button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
}

.action-btns button:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.btn-edit {
    background: var(--primary);
    color: var(--white);
}

.btn-delete {
    background: var(--error);
    color: var(--white);
}

.category-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--border);
}

.tab-btn {
    padding: 12px 24px;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
    font-family: 'Manrope', sans-serif;
}

.tab-btn:hover {
    color: var(--text-dark);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

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

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.category-card {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.category-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-color-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    flex-shrink: 0;
}

.category-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    flex: 1;
}

.category-card-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.category-card-actions button {
    padding: 8px 16px;
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    header {
        padding: 12px 12px;
        margin-bottom: 12px;
    }

    header h1 {
        font-size: 1.25rem;
    }

    .logo-main {
        height: 40px;
    }

    .logo {
        height: 40px;
    }

    .admin-logo {
        height: 35px;
    }

    .header-content {
        flex-direction: column;
        gap: 6px;
    }

    .header-text {
        text-align: center;
    }

    main {
        padding: 8px;
    }

    .search-section {
        padding: 16px 12px;
        max-width: 100%;
    }

    .search-title h2 {
        font-size: 1.125rem;
        margin-bottom: 4px;
    }

    .search-title p {
        font-size: 0.8125rem;
    }

    .input-label {
        font-size: 0.8125rem;
        margin-bottom: 6px;
    }

    .input-group {
        flex-direction: column;
        gap: 6px;
    }

    .input-group input {
        padding: 12px 14px;
        font-size: 0.9375rem;
    }

    .btn {
        padding: 12px 20px;
        font-size: 0.9375rem;
    }

    .btn-primary {
        width: 100%;
        min-width: auto;
    }

    .btn-scan {
        padding: 14px;
        font-size: 0.9375rem;
    }

    .divider {
        margin: 16px 0;
    }

    .product-image-wrapper {
        width: 150px;
        height: 150px;
    }

    .product-info {
        padding: 16px;
    }

    .product-info h2 {
        font-size: 1.125rem;
        margin-bottom: 12px;
    }

    .product-meta {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        padding: 12px;
    }

    .meta-label {
        font-size: 0.7rem;
    }

    .meta-value {
        font-size: 0.9rem;
    }

    .product-category-tag {
        font-size: 0.65rem;
        padding: 5px 12px;
    }

    .product-description {
        padding: 12px;
        font-size: 0.875rem;
        margin-bottom: 12px;
    }

    .product-price {
        font-size: 1.5rem;
        padding: 16px;
    }

    .error-card {
        padding: 24px 16px;
    }

    .error-card h3 {
        font-size: 1.125rem;
    }

    .error-card p {
        font-size: 0.9375rem;
    }

    .login-card {
        padding: 24px 16px;
    }

    .login-logo {
        height: 60px;
        margin-bottom: 12px;
    }

    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .admin-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .search-box {
        max-width: 100%;
    }

    .products-table {
        overflow-x: auto;
    }

    table {
        min-width: 800px;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions button {
        width: 100%;
    }

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

    .admin-tabs {
        margin-bottom: 12px;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 0.875rem;
    }

    footer {
        padding: 12px;
        margin-top: 16px;
        font-size: 0.8125rem;
    }
}