/* Zebra Label Designer - Styles */

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --success-color: #16a34a;
    --success-hover: #15803d;
    --danger-color: #dc2626;
    --bg-color: #f3f4f6;
    --sidebar-bg: #ffffff;
    --header-bg: #1f2937;
    --header-text: #ffffff;
    --border-color: #e5e7eb;
    --text-color: #374151;
    --text-muted: #6b7280;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
    --input-bg: #ffffff;
    --canvas-wrapper-bg: #e5e7eb;
    --canvas-bg: #ffffff;
    --ruler-bg: #f9fafb;
    --ruler-corner-bg: #f3f4f6;
    --code-bg: #1f2937;
    --code-text: #e5e7eb;
}

/* Dark Theme */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --success-color: #22c55e;
    --success-hover: #16a34a;
    --danger-color: #ef4444;
    --bg-color: #111827;
    --sidebar-bg: #1f2937;
    --header-bg: #030712;
    --header-text: #f9fafb;
    --border-color: #374151;
    --text-color: #f3f4f6;
    --text-muted: #9ca3af;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.4);
    --input-bg: #374151;
    --canvas-wrapper-bg: #1f2937;
    --canvas-bg: #ffffff;
    --ruler-bg: #1f2937;
    --ruler-corner-bg: #111827;
    --code-bg: #030712;
    --code-text: #e5e7eb;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 56px;
    background-color: var(--header-bg);
    color: var(--header-text);
    box-shadow: var(--shadow);
    z-index: 100;
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: 8px;
}

/* Main Content */
.app-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebars */
.sidebar {
    width: 220px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 16px;
    overflow-y: auto;
}

.sidebar-properties {
    border-right: none;
    border-left: 1px solid var(--border-color);
}

.sidebar h3 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 12px;
    letter-spacing: 0.05em;
}

.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 16px 0;
}

/* Tool Buttons */
.tool-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tool-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-color);
    transition: all 0.15s;
}

.tool-btn:hover {
    background-color: var(--bg-color);
    border-color: var(--text-muted);
}

.tool-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.tool-btn svg {
    flex-shrink: 0;
}

/* Action Buttons */
.action-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-color);
    transition: all 0.15s;
}

.action-btn:hover {
    background-color: var(--bg-color);
    border-color: var(--text-muted);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Canvas Area */
.canvas-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color);
    overflow: hidden;
}

/* Rulers container - grid layout */
.canvas-with-rulers {
    flex: 1;
    display: grid;
    grid-template-columns: 25px 1fr;
    grid-template-rows: 25px 1fr;
    overflow: hidden;
}

/* Corner spacer (top-left) */
.ruler-corner {
    background-color: var(--ruler-corner-bg);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

/* Ruler base styles */
.ruler {
    background-color: var(--ruler-bg);
    overflow: hidden;
}

.ruler canvas {
    display: block;
}

/* Horizontal ruler (top) */
.ruler-horizontal {
    border-bottom: 1px solid var(--border-color);
    overflow-x: hidden;
}

/* Vertical ruler (left) */
.ruler-vertical {
    border-right: 1px solid var(--border-color);
    overflow-y: hidden;
}

.canvas-wrapper {
    position: relative;
    overflow: auto;
    background-color: var(--canvas-wrapper-bg);
}

/* Our canvas container - use ID to avoid conflict with Fabric.js .canvas-container */
#canvas-container {
    background-color: var(--canvas-bg);
    box-shadow: var(--shadow-lg);
    /* Position absolutely over the spacer */
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 1;
    /* Fit content - don't expand beyond canvas */
    width: fit-content;
    height: fit-content;
    /* Transform origin for zoom */
    transform-origin: top left;
    /* Smooth zoom transition */
    transition: transform 0.15s ease-out;
}

.canvas-spacer {
    /* Invisible element that defines scrollable area */
    display: block;
    pointer-events: none;
}

#label-canvas,
.canvas-container canvas {
    display: block;
    /* Crisp rendering for QR codes and barcodes */
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-crisp-edges;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

.canvas-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background-color: var(--sidebar-bg);
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.zoom-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.zoom-controls #zoom-slider {
    width: 100px;
    height: 4px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.zoom-controls #zoom-level {
    min-width: 45px;
    text-align: center;
    font-weight: 500;
}

.zoom-controls .btn-sm {
    padding: 4px 8px;
    font-size: 0.75rem;
    min-width: 32px;
}

/* Alignment Section */
.align-section {
    margin-bottom: 8px;
}

.align-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    margin-top: 8px;
}

.align-label:first-child {
    margin-top: 0;
}

.align-sublabel {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-bottom: 4px;
    margin-top: 6px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.align-row {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.align-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-color);
    transition: all 0.15s;
}

.align-btn svg {
    width: 16px;
    height: 16px;
}

.align-btn:hover {
    background-color: var(--bg-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.align-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.align-separator {
    color: var(--border-color);
    margin: 0 4px;
    font-size: 0.8rem;
}

/* Properties Panel */
.property-dimensions {
    background-color: var(--bg-color);
    padding: 8px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
    font-size: 0.8rem;
}

.property-dimensions .dim-label {
    color: var(--text-muted);
    margin-right: 6px;
}

.property-dimensions .dim-value {
    font-weight: 600;
    color: var(--text-color);
}

.property-dimensions.multi-selection {
    background-color: #dbeafe;
    border: 1px solid #93c5fd;
}

.align-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 12px;
    line-height: 1.4;
}

#properties-panel {
    font-size: 0.875rem;
}

.no-selection,
.no-elements {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-style: italic;
}

/* Elements List */
#elements-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 8px;
}

.element-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.15s;
}

.element-item:hover {
    background-color: var(--bg-color);
    border-color: var(--border-color);
}

.element-item.active {
    background-color: #dbeafe;
    border-color: var(--primary-color);
}

.element-item-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    color: var(--text-muted);
}

.element-item.active .element-item-icon {
    color: var(--primary-color);
}

.element-item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.elements-actions {
    margin-top: 8px;
}

.elements-actions .btn {
    width: 100%;
    justify-content: center;
}

.property-group {
    margin-bottom: 12px;
}

.property-group label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.property-group input,
.property-group select {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.875rem;
    background-color: var(--input-bg);
    color: var(--text-color);
}

.property-group input:focus,
.property-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* Unit selector in properties - compact style */
.property-group #prop-unit {
    background-color: var(--bg-color);
    font-weight: 500;
}

.property-row {
    display: flex;
    gap: 8px;
}

.property-row .property-group {
    flex: 1;
}

/* Number inputs with step controls */
.property-group input[type="number"] {
    -moz-appearance: textfield;
}

.property-group input[type="number"]::-webkit-inner-spin-button,
.property-group input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
}


/* Footer */
.app-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background-color: var(--sidebar-bg);
    border-top: 1px solid var(--border-color);
}

.footer-left,
.footer-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.separator {
    color: var(--border-color);
    margin: 0 4px;
}

/* Dropdown Buttons */
.btn-dropdown {
    position: relative;
}

.btn-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-dropdown-toggle svg {
    transition: transform 0.2s;
}

.btn-dropdown.open .btn-dropdown-toggle svg {
    transform: rotate(180deg);
}

.btn-dropdown-menu {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 180px;
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 4px;
    display: none;
    z-index: 100;
    animation: dropdownFadeIn 0.15s ease;
}

.btn-dropdown.open .btn-dropdown-menu {
    display: block;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(4px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.btn-dropdown-item {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    color: var(--text-color);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.1s;
}

.btn-dropdown-item:hover {
    background-color: var(--bg-color);
}

.btn-dropdown-item:active {
    background-color: var(--border-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
    transition: all 0.15s;
}

.btn:hover {
    background-color: var(--bg-color);
    border-color: var(--text-muted);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 8px;
    border: none;
    background-color: transparent;
    color: var(--header-text);
}

.btn-icon:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: var(--success-hover);
    border-color: var(--success-hover);
}

.btn-update {
    background-color: #f59e0b;
    border-color: #d97706;
    color: white;
}

.btn-update:hover {
    background-color: #d97706;
    border-color: #b45309;
}

.btn-batch {
    background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
    border-color: #7c3aed;
    color: white;
}

.btn-batch:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
    border-color: #6d28d9;
    color: white;
}

.btn-print {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    border-color: #047857;
    color: white;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-print:hover {
    background: linear-gradient(135deg, #047857 0%, #065f46 100%);
    border-color: #065f46;
    color: white;
}

/* Zebra Print Modal */
.zebra-print-status {
    font-size: 0.9em;
    color: var(--text-muted);
    margin-bottom: 12px;
    min-height: 1.2em;
}
.zebra-printer-list {
    max-height: 250px;
    overflow-y: auto;
}
.zebra-printer-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: all 0.15s;
}
.zebra-printer-item:hover {
    background: var(--hover-bg);
}
.zebra-printer-item.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}
.zebra-printer-item.active svg {
    stroke: white;
}
.zebra-printer-item small {
    display: block;
    font-size: 0.85em;
    opacity: 0.7;
}
.zebra-install-info {
    background: #fffbeb;
    border: 1px solid #fbbf24;
    border-radius: 8px;
    padding: 16px;
}
.zebra-install-info h4 {
    margin: 0 0 8px 0;
    color: #92400e;
}
.zebra-install-info p {
    margin: 0 0 8px 0;
    font-size: 0.9em;
}
.zebra-install-info ol {
    margin: 8px 0 0 0;
    padding-left: 20px;
    font-size: 0.9em;
}
.zebra-install-info li {
    margin-bottom: 4px;
}
.zebra-install-info a {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Dark theme: Zebra install info */
[data-theme="dark"] .zebra-install-info {
    background: #422006;
    border-color: #a16207;
}
[data-theme="dark"] .zebra-install-info h4 {
    color: #fbbf24;
}

/* Diagnostic log: terminal look (intentionally dark in both themes,
   like .code-preview) but with a themed border and an empty state */
.zebra-print-diagnostic {
    margin: 0;
    padding: 10px 12px;
    background: #0f172a;
    color: #e2e8f0;
    border: 1px solid var(--border-color);
    font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.78em;
    line-height: 1.45;
    border-radius: 6px;
    min-height: 42px;
    max-height: 280px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.zebra-print-diagnostic:empty::before {
    content: 'Brak zdarzen';
    color: #94a3b8;
    font-style: italic;
}

.zebra-diag-section {
    margin-top: 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 14px;
    background: var(--bg-color);
}
.zebra-diag-section > summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9em;
    color: var(--text-color);
    padding: 4px 0;
    user-select: none;
}
.zebra-diag-section[open] > summary {
    margin-bottom: 10px;
}
.zebra-diag-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}
.zebra-diag-buttons .btn {
    font-size: 0.82em;
    padding: 4px 10px;
}

/* Advanced sub-section: TTF font upload (secondary action, collapsed) */
.zebra-diag-advanced {
    margin: 10px 0;
    padding: 8px 12px;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
}
.zebra-diag-advanced > summary {
    cursor: pointer;
    font-size: 0.82em;
    font-weight: 600;
    color: var(--text-color);
    user-select: none;
}
.zebra-diag-advanced[open] > summary {
    margin-bottom: 8px;
}
.zebra-diag-hint {
    font-size: 0.78em;
    color: var(--text-color);
    margin: 0 0 8px;
    line-height: 1.5;
}
.zebra-diag-advanced .btn {
    font-size: 0.82em;
    padding: 4px 10px;
}

/* Diagnostic log header (label + clear button) */
.zebra-diag-log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin: 12px 0 6px;
}
.zebra-diag-log-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-color);
}
.zebra-diag-log-header .btn {
    font-size: 0.78em;
    padding: 3px 10px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--sidebar-bg);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-wide {
    max-width: 600px;
}

.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: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-color);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

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

/* Form Elements */
.form-group {
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: inherit;
    background-color: var(--input-bg);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Settings */
.settings-section-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 12px;
    margin-top: 20px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 0.03em;
}

.settings-section-title:first-child {
    margin-top: 0;
}

.settings-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.settings-group {
    margin-bottom: 16px;
}

.settings-group.half {
    flex: 1;
    margin-bottom: 0;
}

.settings-group:last-child {
    margin-bottom: 0;
}

.settings-group > label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    margin-bottom: 6px;
}

.settings-group input[type="checkbox"] {
    width: auto;
}

.settings-group select,
.settings-group input[type="number"] {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    background-color: var(--input-bg);
    color: var(--text-color);
}

/* Settings modal: wider, two-column layout */
.modal-settings {
    max-width: 760px;
}

.settings-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
    align-items: start;
}

.settings-col {
    min-width: 0;
}

@media (max-width: 700px) {
    .modal-settings {
        max-width: 420px;
    }

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

/* Short inline hint under a setting field */
.settings-hint {
    display: block;
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--text-muted);
    line-height: 1.45;
    margin-top: 6px;
}

/* Collapsible "more help" block under a setting field */
.settings-help {
    margin-top: 4px;
}

.settings-help summary {
    cursor: pointer;
    font-size: 0.78rem;
    color: var(--primary-color);
    user-select: none;
}

.settings-help p {
    font-size: 0.78rem;
    color: var(--text-color);
    line-height: 1.5;
    margin: 6px 0 0;
    padding: 8px 10px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

[data-theme="dark"] .settings-help summary {
    color: #60a5fa;
}

/* Label orientation toggle */
.label-orientation-btns {
    display: flex;
    gap: 8px;
}
.label-orient-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background: transparent;
    cursor: pointer;
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-color);
    transition: all 0.15s;
}
.label-orient-btn:hover {
    border-color: var(--primary-color);
}
.label-orient-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}
.label-orient-btn svg {
    flex-shrink: 0;
}

.input-with-unit {
    display: flex;
    gap: 6px;
}

.input-with-unit input {
    flex: 1;
    min-width: 60px;
}

.input-with-unit select {
    width: 70px;
    flex-shrink: 0;
}

/* Templates List */
.templates-list {
    max-height: 400px;
    overflow-y: auto;
}

.template-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
    transition: all 0.15s;
}

.template-item:hover {
    background-color: var(--bg-color);
    border-color: var(--primary-color);
}

.template-item:last-child {
    margin-bottom: 0;
}

.template-info {
    flex: 1;
    min-width: 0;
}

.template-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.template-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

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

.template-meta-badge {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.template-meta-date {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.template-actions {
    display: flex;
    gap: 8px;
    margin-left: 16px;
    flex-shrink: 0;
}

.btn-danger {
    background-color: #ef4444;
    border-color: #dc2626;
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
    border-color: #b91c1c;
}

/* Code Preview */
.code-preview {
    background-color: var(--code-bg);
    color: var(--code-text);
    padding: 16px;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 400px;
    overflow-y: auto;
}

/* Loading */
.loading {
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
}

/* Grid overlay for canvas */
.canvas-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    background-image:
        linear-gradient(to right, #e5e7eb 1px, transparent 1px),
        linear-gradient(to bottom, #e5e7eb 1px, transparent 1px);
    background-size: 10px 10px;
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 12px 20px;
    background-color: var(--header-bg);
    color: white;
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    animation: slideIn 0.3s ease;
}

.toast.success {
    background-color: var(--success-color);
}

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

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border: none;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    cursor: pointer;
    color: var(--header-text);
    font-size: 0.8rem;
    transition: all 0.15s;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    display: none;
}

/* Show sun icon in dark mode (to switch to light) */
[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

/* Show moon icon in light mode (to switch to dark) */
:root:not([data-theme="dark"]) .theme-toggle .icon-moon,
[data-theme="light"] .theme-toggle .icon-moon {
    display: block;
}

/* Dark mode specific adjustments */
[data-theme="dark"] .property-dimensions.multi-selection {
    background-color: #1e3a5f;
    border-color: #3b82f6;
}

[data-theme="dark"] .element-item.active {
    background-color: #1e3a5f;
    border-color: var(--primary-color);
}

[data-theme="dark"] .template-item:hover {
    background-color: var(--bg-color);
}

[data-theme="dark"] .template-meta-badge {
    background-color: rgba(96, 165, 250, 0.12);
    border-color: rgba(96, 165, 250, 0.25);
    color: #60a5fa;
}

/* Property hint for element name */
.property-hint {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-style: italic;
}

/* Batch Generation Modal */
.modal-batch {
    max-width: 720px;
    max-height: 90vh;
}

.modal-batch .modal-header {
    background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
    color: white;
    border-bottom: none;
}

.modal-batch .modal-header h2 {
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-batch .modal-header h2::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 24px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Crect x='3' y='3' width='7' height='7'%3E%3C/rect%3E%3Crect x='14' y='3' width='7' height='7'%3E%3C/rect%3E%3Crect x='3' y='14' width='7' height='7'%3E%3C/rect%3E%3Crect x='14' y='14' width='7' height='7'%3E%3C/rect%3E%3C/svg%3E");
    background-size: contain;
}

.modal-batch .modal-close {
    color: rgba(255, 255, 255, 0.8);
}

.modal-batch .modal-close:hover {
    color: white;
}

.modal-batch .modal-body {
    padding: 0;
}

.batch-step {
    padding: 16px 20px;
    margin: 0;
}

.batch-step:nth-child(odd) {
    background-color: var(--bg-color);
}

.batch-step-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: #7c3aed;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.batch-step-title::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: #8b5cf6;
    border-radius: 50%;
}

.batch-step-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    margin-top: -4px;
}

.batch-divider {
    display: none;
}

/* File Upload */
.batch-file-upload {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.batch-file-upload .btn {
    background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
    border-color: #7c3aed;
    color: white;
}

.batch-file-upload .btn:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
}

.batch-filename {
    font-size: 0.85rem;
    color: var(--text-color);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.batch-file-info {
    font-size: 0.8rem;
    color: var(--text-color);
    background-color: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 8px 12px;
    border-radius: 6px;
    margin-top: 8px;
}

.batch-no-file {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    padding: 24px;
    text-align: center;
    background-color: var(--bg-color);
    border-radius: 6px;
    border: 1px dashed var(--border-color);
}

/* Checkboxes and Radios */
.batch-checkbox,
.batch-radio {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    cursor: pointer;
    user-select: none;
    padding: 6px 0;
    border-radius: 6px;
    transition: background-color 0.15s;
}

.batch-option-group .batch-checkbox,
.batch-option-group .batch-radio {
    padding: 6px 10px;
}

.batch-option-group .batch-checkbox:hover,
.batch-option-group .batch-radio:hover {
    background-color: rgba(139, 92, 246, 0.1);
}

.batch-checkbox input,
.batch-radio input {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: #8b5cf6;
}

.batch-checkboxes,
.batch-radios {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 8px;
}

/* Mapping Table */
.batch-mapping-container {
    max-height: 180px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--sidebar-bg);
}

.batch-mapping-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.batch-mapping-table thead {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25) 0%, rgba(109, 40, 217, 0.25) 100%);
    position: sticky;
    top: 0;
    z-index: 1;
}

.batch-mapping-table thead::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background-color: var(--border-color);
}

.batch-mapping-table th {
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    color: #7c3aed;
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 0.03em;
    background-color: var(--sidebar-bg);
}

.batch-mapping-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
}

.batch-mapping-table tbody tr:hover {
    background-color: rgba(139, 92, 246, 0.05);
}

.batch-mapping-table tr:last-child td {
    border-bottom: none;
}

.batch-element-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.batch-element-icon {
    flex-shrink: 0;
    color: #8b5cf6;
    background-color: rgba(139, 92, 246, 0.1);
    padding: 4px;
    border-radius: 4px;
}

.batch-element-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}

.batch-column-select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.85rem;
    background-color: var(--input-bg);
    color: var(--text-color);
    cursor: pointer;
}

.batch-column-select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

/* Filename Configuration */
.batch-filename-config {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.batch-filename-config .form-group {
    margin-bottom: 0;
}

.batch-filename-config .form-group label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
}

.batch-filename-config .form-group input,
.batch-filename-config .form-group select {
    border-radius: 6px;
}

.batch-filename-config .form-group input:focus,
.batch-filename-config .form-group select:focus {
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.batch-filename-preview {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    padding: 10px 14px;
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.batch-filename-preview label {
    color: var(--text-muted);
    margin: 0;
    font-weight: 500;
}

.batch-filename-preview code {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(109, 40, 217, 0.05) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 6px 12px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 0.8rem;
    color: #7c3aed;
    font-weight: 500;
}

/* Options */
.batch-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.batch-option-group {
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 14px;
}

.batch-option-group > label {
    font-size: 0.75rem;
    font-weight: 600;
    color: #7c3aed;
    display: block;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Summary */
.batch-summary {
    margin-top: 12px;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(109, 40, 217, 0.05) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 8px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.batch-summary strong {
    color: var(--text-muted);
    font-weight: 500;
}

.batch-summary #batch-summary-count {
    color: #7c3aed;
    font-weight: 700;
}

/* Progress */
.batch-progress {
    margin: 16px 20px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(109, 40, 217, 0.05) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 8px;
}

.batch-progress-bar {
    height: 10px;
    background-color: rgba(139, 92, 246, 0.2);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 12px;
}

.batch-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #8b5cf6 0%, #6d28d9 100%);
    border-radius: 5px;
    transition: width 0.3s ease;
}

.batch-progress-text {
    font-size: 0.85rem;
    color: #7c3aed;
    text-align: center;
    display: block;
    font-weight: 500;
}

/* Modal batch footer */
.modal-batch .modal-footer {
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
}

.modal-batch #btn-batch-generate {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: white;
}

.modal-batch #btn-batch-generate:hover:not(:disabled) {
    background-color: var(--success-hover);
    border-color: var(--success-hover);
}

.modal-batch #btn-batch-generate:disabled {
    background: var(--border-color);
    border-color: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Dark mode adjustments for batch */
[data-theme="dark"] .batch-mapping-table thead {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25) 0%, rgba(109, 40, 217, 0.25) 100%);
}

[data-theme="dark"] .batch-mapping-table th {
    background-color: var(--sidebar-bg);
}

[data-theme="dark"] .batch-filename-preview code {
    background-color: var(--header-bg);
}

[data-theme="dark"] .batch-file-info {
    background-color: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.3);
}

[data-theme="dark"] .batch-summary {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(109, 40, 217, 0.1) 100%);
    border-color: rgba(139, 92, 246, 0.3);
}

[data-theme="dark"] .batch-progress {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(109, 40, 217, 0.1) 100%);
    border-color: rgba(139, 92, 246, 0.3);
}

[data-theme="dark"] .batch-step-title {
    color: #a78bfa;
}

[data-theme="dark"] .batch-element-icon {
    color: #a78bfa;
    background-color: rgba(139, 92, 246, 0.2);
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        width: 180px;
    }
}

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

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .sidebar-properties {
        border-left: none;
        border-top: 1px solid var(--border-color);
    }

    .tool-group {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .app-footer {
        flex-direction: column;
        gap: 8px;
    }

    .footer-left,
    .footer-right {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* ═══════════════════════════════════════════════════════
   Sheet Layout Modal
   ═══════════════════════════════════════════════════════ */

.modal-sheet {
    max-width: 860px;
}

.modal-sheet .modal-header {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: white;
    border-bottom: none;
}

.modal-sheet .modal-close {
    color: rgba(255, 255, 255, 0.8);
}

.modal-sheet .modal-close:hover {
    color: white;
}

.btn-sheet {
    background-color: #059669;
    border-color: #059669;
    color: white;
}

.btn-sheet:hover {
    background-color: #047857;
    border-color: #047857;
    color: white;
}

/* Two-column layout */
.sheet-layout-container {
    display: flex;
    gap: 0;
    min-height: 400px;
}

.sheet-settings {
    flex: 0 0 320px;
    padding: 16px 20px;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    max-height: 65vh;
}

.sheet-preview {
    flex: 1;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Sections */
.sheet-section {
    margin-bottom: 14px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color);
}

.sheet-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.sheet-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: #059669;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.sheet-section .form-group {
    margin-bottom: 10px;
}

.sheet-section .form-group:last-child {
    margin-bottom: 0;
}

.sheet-section .settings-row {
    margin-bottom: 8px;
}

.sheet-section .settings-row:last-child {
    margin-bottom: 0;
}

/* Orientation buttons */
.sheet-orientation-btns {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.sheet-orient-btn {
    flex: 1;
    padding: 6px 12px;
    font-size: 0.8rem;
    text-align: center;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.15s ease;
}

.sheet-orient-btn.active {
    background-color: #059669;
    border-color: #059669;
    color: white;
}

/* Preview */
.sheet-preview-sheet {
    position: relative;
    background: white;
    border: 1px solid #d1d5db;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    border-radius: 2px;
    margin-bottom: 16px;
}

.sheet-preview-margins {
    position: absolute;
    border: 1px dashed #d1d5db;
    pointer-events: none;
}

.sheet-preview-label {
    position: absolute;
    background: #e0e7ff;
    border: 1px solid #818cf8;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4338ca;
    font-weight: 600;
    border-radius: 1px;
    overflow: hidden;
    box-sizing: border-box;
}

.sheet-preview-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: var(--text-muted);
    text-align: center;
    font-size: 0.85rem;
}

.sheet-preview-empty p {
    margin: 4px 0;
}

/* Info summary */
.sheet-info-summary {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.85rem;
}

.sheet-info-item {
    display: flex;
    justify-content: space-between;
    padding: 6px 10px;
    background: var(--bg-color);
    border-radius: 4px;
}

/* Dark theme */
[data-theme="dark"] .sheet-section-title {
    color: #34d399;
}

[data-theme="dark"] .sheet-orient-btn.active {
    background-color: #059669;
    border-color: #059669;
}

[data-theme="dark"] .sheet-preview-sheet {
    background: #e5e7eb;
}

[data-theme="dark"] .sheet-preview-label {
    background: #c7d2fe;
    border-color: #6366f1;
    color: #3730a3;
}

[data-theme="dark"] .btn-sheet {
    background-color: #059669;
    border-color: #059669;
}

/* Responsive */
@media (max-width: 768px) {
    .sheet-layout-container {
        flex-direction: column;
    }

    .sheet-settings {
        flex: none;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        max-height: none;
    }

    .modal-sheet {
        max-width: 95vw;
    }
}