* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background: #f4f6f8;
    color: #1f2937;
}

/* Login */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: #111827;
}

.login-box {
    background: #fff;
    padding: 2.5rem;
    border-radius: 10px;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.login-box h1 {
    margin: 0 0 0.25rem;
    font-size: 1.5rem;
    color: #111827;
}

.login-box h2 {
    margin: 0 0 1.5rem;
    font-size: 1rem;
    font-weight: 400;
    color: #6b7280;
}

.login-box form {
    display: flex;
    flex-direction: column;
}

.login-box label {
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
    color: #374151;
}

.login-box input {
    margin-bottom: 1rem;
    padding: 0.6rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.95rem;
}

.login-box button {
    padding: 0.65rem;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
}

.login-box button:hover { background: #1d4ed8; }

.alert {
    background: #fee2e2;
    color: #b91c1c;
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    font-size: 0.9rem;
    margin: 0 0 1rem;
    list-style: none;
}

/* App layout */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #111827;
    color: #fff;
    padding: 0.9rem 2rem;
}

.topbar .brand { font-weight: 700; font-size: 1.1rem; }

.topbar nav a {
    color: #d1d5db;
    text-decoration: none;
    margin-left: 1.25rem;
    font-size: 0.9rem;
}

.topbar nav a:hover { color: #fff; }

.container {
    margin: 0 auto;
    padding: 2rem;
}

h1 { margin-top: 0; }

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

.cards {
    display: flex;
    gap: 1rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}

.card {
    background: #fff;
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    min-width: 180px;
    flex: 1;
}

.card-label {
    display: block;
    font-size: 0.8rem;
    color: #6b7280;
    margin-bottom: 0.4rem;
}

.card-value {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    color: #111827;
}

.btn, .btn-secondary {
    display: inline-block;
    padding: 0.55rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
}

.btn {
    background: #2563eb;
    color: #fff;
}

.btn:hover { background: #1d4ed8; }

.btn-secondary {
    background: #e5e7eb;
    color: #111827;
}

.btn-secondary:hover { background: #d1d5db; }

.search-form {
    margin: 1rem 0;
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.search-form input {
    padding: 0.5rem 0.7rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    min-width: 250px;
}

.search-form select {
    padding: 0.4rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    min-width: 160px;
}

.filter-label {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.8rem;
    color: #374151;
    font-weight: 600;
}

.search-form button {
    padding: 0.5rem 0.9rem;
    border: none;
    border-radius: 6px;
    background: #374151;
    color: #fff;
    cursor: pointer;
}

.table-toolbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.table-toolbar .btn-secondary {
    border: none;
    font-family: inherit;
    cursor: pointer;
}

.table-toolbar .btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.selection-count {
    font-size: 0.85rem;
    color: #6b7280;
}

.hidden-delete-form {
    display: none;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.data-table th, .data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #eef0f2;
    font-size: 0.9rem;
}

.data-table th {
    background: #f9fafb;
    color: #374151;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.data-table .empty {
    text-align: center;
    color: #9ca3af;
    padding: 2rem;
}

.actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.actions form { margin: 0; }

.link-btn {
    background: none;
    border: none;
    color: #dc2626;
    cursor: pointer;
    padding: 0;
    font-size: 0.9rem;
    text-decoration: underline;
}

.form {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    max-width: 480px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
}

.form label {
    font-size: 0.85rem;
    margin: 0.75rem 0 0.25rem;
    color: #374151;
}

.form input, .form textarea {
    padding: 0.55rem 0.7rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
}

.form-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
}

.form-actions button {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 0.6rem 1.1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
}

.form-actions button:hover { background: #1d4ed8; }

.product-form { max-width: 640px; }

.thumb {
    width: 44px;
    height: 44px;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid #e5e7eb;
    cursor: pointer;
    transition: transform 0.15s ease;
}

.thumb:hover {
    transform: scale(1.15);
}

.no-thumb {
    color: #9ca3af;
    font-size: 0.8rem;
}

.image-search { margin-bottom: 0.75rem; }

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 0.6rem;
    max-height: 420px;
    overflow-y: auto;
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #f9fafb;
}

.image-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    padding: 0.5rem;
    font-size: 0.7rem;
    cursor: pointer;
    text-align: center;
}

.image-option:has(input:checked) {
    border-color: #2563eb;
    background: #eff6ff;
}

.image-option img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 4px;
    cursor: zoom-in;
}

.image-option .image-name {
    word-break: break-all;
    color: #4b5563;
}

.image-option input { margin: 0; }

.alert-success {
    background: #dcfce7;
    color: #166534;
    list-style: none;
}

.bulk-table-wrap {
    overflow-x: auto;
    max-height: 70vh;
    overflow-y: auto;
    border-radius: 8px;
}

.bulk-table th, .bulk-table td { white-space: nowrap; }

.bulk-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
}

.bulk-table .field-input, .bulk-table .part-input {
    padding: 0.4rem 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.85rem;
    width: 130px;
}

.bulk-row.matched-row {
    background: #eff6ff;
}

.bulk-row.matched-row .field-input {
    background: #f3f4f6;
    color: #4b5563;
}

.badge-added, .badge-pending {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-added { background: #dcfce7; color: #166534; }
.badge-pending { background: #fef9c3; color: #854d0e; }
.badge-saving { background: #e0e7ff; color: #3730a3; }
.badge-error { background: #fee2e2; color: #b91c1c; cursor: help; }

.row-actions-cell { white-space: nowrap; }

.row-edit-btn, .row-save-btn, .row-cancel-btn {
    padding: 0.3rem 0.6rem;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    background: #fff;
    margin-right: 0.3rem;
}

.row-edit-btn:hover { background: #f3f4f6; }

.row-save-btn {
    background: #2563eb;
    color: #fff;
    border-color: #2563eb;
}

.row-save-btn:hover { background: #1d4ed8; }

.row-cancel-btn:hover { background: #f3f4f6; }