/* ===== CSS Variables & Reset ===== */
:root {
    --primary-blue: #0056A0;
    --primary-blue-dark: #003d73;
    --primary-red: #D32F2F;
    --primary-red-dark: #b71c1c;
    --bg-dark: #1a1a2e;
    --bg-card: #16213e;
    --bg-input: #0f3460;
    --bg-surface: #1e2a4a;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0b0;
    --text-muted: #707080;
    --border-color: #2a3a5c;
    --border-light: #3a4a6c;
    --success: #4caf50;
    --success-bg: rgba(76, 175, 80, 0.15);
    --warning: #ff9800;
    --warning-bg: rgba(255, 152, 0, 0.15);
    --info: #2196f3;
    --info-bg: rgba(33, 150, 243, 0.15);
    --danger: #f44336;
    --danger-bg: rgba(244, 67, 54, 0.15);
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
    --radius: 8px;
    --radius-sm: 4px;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
}

/* ===== Layout ===== */
.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 16px 32px;
}

/* ===== Header ===== */
header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 2px solid var(--primary-blue);
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.header-logo {
    height: 48px;
    width: auto;
}

.header-content h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.header-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.header-actions {
    display: flex;
    gap: 8px;
    margin-left: auto;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-blue);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-blue-dark);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background: var(--border-color);
}

.btn-danger {
    background: var(--primary-red);
    color: #fff;
}
.btn-danger:hover {
    background: var(--primary-red-dark);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 4px 8px;
    font-size: 1rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
}
.btn-icon:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
}

/* ===== Stats Bar ===== */
.stats-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 12px 20px;
    text-align: center;
    min-width: 120px;
    flex: 1;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

/* ===== Toolbar ===== */
.toolbar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
}

.search-box input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px rgba(0, 86, 160, 0.3);
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.filter-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-group select {
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

/* ===== Table ===== */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

.inventory-table {
    width: 100%;
    border-collapse: collapse;
    white-space: nowrap;
}

.inventory-table thead {
    background: var(--bg-surface);
    position: sticky;
    top: 0;
    z-index: 1;
}

.inventory-table th {
    padding: 10px 12px;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    user-select: none;
}

.inventory-table th.sortable {
    cursor: pointer;
}

.inventory-table th.sortable:hover {
    color: var(--text-primary);
}

.sort-icon {
    font-size: 0.65rem;
    margin-left: 4px;
}

.inventory-table td {
    padding: 8px 12px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-color);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.inventory-table tbody tr {
    transition: background 0.15s;
}

.inventory-table tbody tr:hover {
    background: rgba(0, 86, 160, 0.08);
}

.col-photo { width: 60px; }
.col-catalog { min-width: 180px; }
.col-desc { min-width: 160px; }
.col-qty { width: 60px; text-align: center; }
.col-job { min-width: 180px; }
.col-dist { min-width: 100px; }
.col-so { min-width: 110px; }
.col-wo { min-width: 110px; }
.col-po { min-width: 100px; }
.col-date { min-width: 110px; }
.col-status { min-width: 100px; }
.col-actions { width: 90px; }

/* Table photo thumbnails */
.table-photo {
    width: 44px;
    height: 44px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.table-photo:hover {
    transform: scale(1.1);
}

.photo-placeholder {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
}

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status-received {
    background: var(--success-bg);
    color: var(--success);
}

.status-pending {
    background: var(--warning-bg);
    color: var(--warning);
}

.status-installed {
    background: var(--info-bg);
    color: var(--info);
}

.status-returned {
    background: var(--danger-bg);
    color: var(--danger);
}

/* Action buttons in table */
.action-cell {
    display: flex;
    gap: 4px;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    display: none;
}

.empty-state.visible {
    display: block;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== Modal ===== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 16px;
    overflow-y: auto;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 720px;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.2s ease;
}

.modal-small {
    max-width: 420px;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.1rem;
    color: #fff;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}
.modal-close:hover {
    color: #fff;
}

.modal-body {
    padding: 20px;
    max-height: 65vh;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
}

/* ===== Form Sections ===== */
.form-section {
    margin-bottom: 20px;
}

.form-section h3 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary-blue);
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.3px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 2px rgba(0, 86, 160, 0.3);
}

.form-group textarea {
    resize: vertical;
}

/* ===== Photo Upload ===== */
.photo-dropzone {
    border: 2px dashed var(--border-light);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-surface);
}

.photo-dropzone:hover,
.photo-dropzone.drag-over {
    border-color: var(--primary-blue);
    background: rgba(0, 86, 160, 0.1);
}

.dropzone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.dropzone-icon {
    font-size: 1.8rem;
}

.photo-preview-grid {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.photo-preview-item {
    position: relative;
    width: 80px;
    height: 80px;
}

.photo-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.photo-remove-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-red);
    color: #fff;
    border: none;
    font-size: 0.7rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* ===== Photo Viewer ===== */
.photo-viewer {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.photo-viewer img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius);
}

.photo-viewer-close {
    position: absolute;
    top: -12px;
    right: -12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    z-index: 2;
}

.photo-viewer-nav {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-top: 12px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-actions {
        margin-left: 0;
        width: 100%;
    }

    .header-actions .btn {
        flex: 1;
        justify-content: center;
    }

    .stats-bar {
        flex-wrap: nowrap;
    }

    .stat-card {
        min-width: 90px;
        padding: 10px 12px;
    }

    .stat-value {
        font-size: 1.2rem;
    }

    .toolbar {
        flex-direction: column;
    }

    .search-box {
        width: 100%;
        min-width: unset;
    }

    .filter-group {
        width: 100%;
    }

    .filter-group select {
        flex: 1;
    }

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

    .modal {
        margin: 0;
    }

    .modal-body {
        max-height: 70vh;
    }

    /* Card layout on mobile */
    .table-wrapper {
        display: none;
    }

    .mobile-cards {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .mobile-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius);
        padding: 12px;
    }

    .mobile-card-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin-bottom: 8px;
    }

    .mobile-card-catalog {
        font-weight: 700;
        color: #fff;
        font-size: 0.95rem;
    }

    .mobile-card-body {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px;
        font-size: 0.82rem;
    }

    .mobile-card-field {
        display: flex;
        flex-direction: column;
    }

    .mobile-card-label {
        font-size: 0.7rem;
        color: var(--text-muted);
        text-transform: uppercase;
    }

    .mobile-card-photos {
        display: flex;
        gap: 6px;
        margin-top: 8px;
    }

    .mobile-card-photo {
        width: 48px;
        height: 48px;
        object-fit: cover;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-color);
        cursor: pointer;
    }

    .mobile-card-actions {
        display: flex;
        gap: 6px;
        margin-top: 8px;
        justify-content: flex-end;
    }
}

@media (min-width: 769px) {
    .mobile-cards {
        display: none;
    }
}

/* ===== Scan Button ===== */
.btn-scan {
    background: linear-gradient(135deg, #ff6b00, #ff9800);
    color: #fff;
    font-weight: 700;
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
    animation: scanPulse 2s ease-in-out infinite;
}

.btn-scan:hover {
    background: linear-gradient(135deg, #e65c00, #e68900);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
}

@keyframes scanPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 152, 0, 0.3); }
    50% { box-shadow: 0 0 0 6px rgba(255, 152, 0, 0); }
}

/* ===== Scan Modal ===== */
.modal-scan {
    max-width: 600px;
}

.scan-options {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.scan-option-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 20px 12px;
    background: var(--bg-surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-primary);
    font-family: inherit;
}

.scan-option-btn:hover {
    border-color: var(--primary-blue);
    background: rgba(0, 86, 160, 0.1);
}

.scan-option-icon {
    font-size: 2rem;
}

.scan-option-label {
    font-size: 0.9rem;
    font-weight: 700;
}

.scan-option-desc {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-align: center;
}

/* Scan preview */
.scan-preview-area {
    margin-top: 12px;
    border-radius: var(--radius);
    overflow: hidden;
    background: #000;
    text-align: center;
}

.scan-preview-area img {
    max-width: 100%;
    max-height: 300px;
    object-fit: contain;
}

#barcodeReader {
    width: 100%;
}

#barcodeReader video {
    border-radius: var(--radius);
}

/* Processing step */
.scan-processing {
    text-align: center;
    padding: 20px 0;
}

.scan-progress-container {
    margin-bottom: 20px;
}

.scan-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#scanProgressText {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.scan-progress-bar {
    width: 100%;
    height: 6px;
    background: var(--bg-surface);
    border-radius: 3px;
    overflow: hidden;
}

.scan-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), #2196f3);
    border-radius: 3px;
    transition: width 0.3s;
    width: 0%;
}

.scan-image-preview {
    margin-top: 16px;
}

.scan-image-preview img {
    max-width: 100%;
    max-height: 200px;
    object-fit: contain;
    border-radius: var(--radius);
    opacity: 0.6;
}

/* Review step */
.scan-review-header {
    margin-bottom: 12px;
}

.scan-review-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.scan-image-thumb {
    text-align: center;
    margin-bottom: 12px;
}

.scan-image-thumb img {
    max-width: 100%;
    max-height: 150px;
    object-fit: contain;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.scan-raw-toggle {
    margin-bottom: 8px;
}

.scan-raw-toggle summary {
    font-size: 0.8rem;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
}

.scan-raw-toggle summary:hover {
    color: var(--text-secondary);
}

.scan-raw-text {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px;
    font-size: 0.75rem;
    color: var(--text-muted);
    max-height: 120px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
    margin-top: 6px;
    font-family: monospace;
}

/* Quantity field highlight */
.qty-label {
    color: var(--warning) !important;
    font-size: 0.8rem !important;
}

.qty-input-lg {
    font-size: 1.3rem !important;
    font-weight: 700 !important;
    text-align: center;
    padding: 10px !important;
    border-color: var(--warning) !important;
    background: rgba(255, 152, 0, 0.08) !important;
}

.qty-input-lg:focus {
    box-shadow: 0 0 0 2px rgba(255, 152, 0, 0.3) !important;
}

/* Scan field highlight for auto-filled fields */
.scan-filled {
    border-color: var(--success) !important;
    background: rgba(76, 175, 80, 0.08) !important;
}

@media (max-width: 768px) {
    .scan-options {
        flex-direction: column;
    }

    .scan-option-btn {
        flex-direction: row;
        padding: 14px 16px;
        text-align: left;
    }

    .scan-option-icon {
        font-size: 1.5rem;
    }

    .scan-option-desc {
        text-align: left;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}