* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: var(--bg-page);
    color: var(--text-default);
    font-family: var(--font-ui);
    font-feature-settings: "tnum" 1, "cv11" 1;
    font-size: 14px;
    line-height: 1.5;
}

a {
    color: var(--text-default);
    text-decoration: none;
}

a.link {
    color: var(--text-muted);
    font-size: 13px;
}
a.link:hover {
    color: var(--nalta-orange);
}

/* shell */
.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-topbar {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: 0 var(--space-5);
    height: 56px;
    background: var(--nalta-navy);
    color: #fff;
    border-bottom: 1px solid var(--nalta-navy-deep);
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.brand-bolt {
    width: 22px;
    height: 22px;
    fill: var(--nalta-orange);
}

.brand-name {
    font-weight: 700;
    letter-spacing: 0.08em;
    font-size: 14px;
}

.breadcrumb {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    letter-spacing: 0.02em;
}

.breadcrumb-root {
    color: rgba(255, 255, 255, 0.92);
}

.topbar-spacer {
    flex: 1;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.env-pill {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.84);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: 0.04em;
}

.app-main {
    flex: 1;
    padding: var(--space-6) var(--space-6);
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
}

/* page header */
.page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: var(--space-5);
    gap: var(--space-5);
}

.page-header-left h1 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    color: var(--text-strong);
}

.page-header-sub {
    margin: 4px 0 0;
    color: var(--text-muted);
    font-size: 13px;
}

.page-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.search-input {
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border-medium);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    font: inherit;
    color: var(--text-default);
    min-width: 240px;
}
.search-input:focus {
    outline: none;
    border-color: var(--nalta-orange);
    box-shadow: 0 0 0 3px var(--nalta-orange-soft);
}

/* card */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.placeholder-card {
    padding: var(--space-5);
}

.placeholder-card h2 {
    margin-top: 0;
    font-size: 16px;
    color: var(--text-strong);
}

.json-dump {
    background: var(--bg-stripe);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    padding: var(--space-3);
    max-height: 360px;
    overflow: auto;
    font-family: var(--font-mono);
    font-size: 12px;
}

/* data table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table thead th {
    text-align: left;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-low);
    font-weight: 600;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-soft);
    background: var(--bg-stripe);
}

.data-table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-soft);
    color: var(--text-default);
    vertical-align: middle;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-row {
    cursor: pointer;
    transition: background 0.08s ease;
}
.data-row:hover {
    background: var(--bg-stripe);
}

.name-cell {
    font-weight: 600;
    color: var(--text-strong);
}

.numeric {
    font-variant-numeric: tabular-nums;
}

.muted {
    color: var(--text-muted);
}

.actions-col {
    text-align: right;
    white-space: nowrap;
    width: 1%;
}

.carrier-pill {
    display: inline-block;
    padding: 3px 10px;
    background: var(--nalta-orange-soft);
    color: var(--nalta-orange-dim);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* buttons */
.btn {
    height: 36px;
    padding: 0 14px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.1s ease, border-color 0.1s ease, color 0.1s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--nalta-orange);
    color: #fff;
}
.btn-primary:hover:not(:disabled) {
    background: var(--nalta-orange-dim);
}

.btn-ghost {
    background: transparent;
    color: var(--text-default);
    border-color: var(--border-medium);
}
.btn-ghost:hover:not(:disabled) {
    background: var(--bg-stripe);
}

.btn-danger {
    background: var(--status-danger);
    color: #fff;
}
.btn-danger:hover:not(:disabled) {
    background: #a52727;
}

.btn-danger-ghost {
    background: transparent;
    color: var(--status-danger);
    border-color: transparent;
}
.btn-danger-ghost:hover:not(:disabled) {
    background: var(--status-danger-soft);
}

/* empty state */
.empty-state {
    padding: var(--space-7);
    text-align: center;
    color: var(--text-muted);
}

/* modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(13, 19, 37, 0.42);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

.modal {
    width: min(480px, 92vw);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-modal);
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border-soft);
}

.modal-header h2 {
    margin: 0;
    font-size: 16px;
    color: var(--text-strong);
}

.modal-body {
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.modal-footer {
    padding: var(--space-3) var(--space-5) var(--space-4);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
    border-top: 1px solid var(--border-soft);
    background: var(--bg-stripe);
}

.icon-button {
    background: transparent;
    border: none;
    font-size: 22px;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
}
.icon-button:hover {
    color: var(--text-strong);
}

/* forms */
.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.field-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-low);
    font-weight: 600;
}

.field-input {
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border-medium);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    font: inherit;
    color: var(--text-default);
    width: 100%;
    min-width: 0;
}

.field-input:focus {
    outline: none;
    border-color: var(--nalta-orange);
    box-shadow: 0 0 0 3px var(--nalta-orange-soft);
}

.field-row {
    display: flex;
    gap: var(--space-3);
}

.error-text {
    color: var(--status-danger);
    font-size: 13px;
    margin: 0;
}

/* ============================================================
   DESIGNER SHELL
   ============================================================ */

.designer-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    color: var(--text-muted);
    font-size: 15px;
}

.designer-shell {
    display: grid;
    grid-template-rows: 56px 1fr;
    grid-template-columns: 240px 1fr 280px;
    height: 100vh;
    overflow: hidden;
    background: var(--bg-page);
}

/* ============================================================
   DESIGNER TOP BAR
   ============================================================ */

.designer-topbar {
    grid-column: 1 / -1;
    grid-row: 1;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0 var(--space-4);
    height: 56px;
    background: var(--nalta-navy);
    color: #fff;
    border-bottom: 1px solid var(--nalta-navy-deep);
    z-index: 10;
    overflow: hidden;
}

.designer-topbar-back {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.65);
    font-size: 17px;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    line-height: 1;
    flex-shrink: 0;
    transition: color 0.1s;
}
.designer-topbar-back:hover { color: #fff; }

.designer-topbar-divider {
    width: 1px;
    height: 20px;
    background: rgba(255,255,255,0.14);
    flex-shrink: 0;
}

.designer-breadcrumb {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: rgba(255,255,255,0.55);
    flex-shrink: 0;
    white-space: nowrap;
}
.designer-breadcrumb-sep {
    opacity: 0.4;
}

.designer-name-pill {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-shrink: 0;
}

.designer-dims-readout {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    white-space: nowrap;
    flex-shrink: 0;
}

.designer-topbar-center {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    overflow: hidden;
}

.designer-topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

/* Topbar button */
.topbar-btn {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.82);
    border-radius: var(--radius-sm);
    padding: 0 10px;
    height: 28px;
    font: inherit;
    font-size: 12px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
    transition: background 0.1s;
}
.topbar-btn:hover:not(:disabled) {
    background: rgba(255,255,255,0.14);
    color: #fff;
}
.topbar-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.topbar-btn-orange {
    background: var(--nalta-orange);
    border-color: var(--nalta-orange-dim);
    color: #fff;
    font-weight: 600;
}
.topbar-btn-orange:hover:not(:disabled) {
    background: var(--nalta-orange-dim);
}

/* Zoom group */
.zoom-group {
    display: flex;
    align-items: center;
}
.zoom-group .topbar-btn {
    border-radius: 0;
    padding: 0 8px;
}
.zoom-group .topbar-btn:first-child {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
.zoom-group .topbar-btn:last-child {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.zoom-value {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.15);
    border-left: none;
    border-right: none;
    color: rgba(255,255,255,0.82);
    font-size: 12px;
    height: 28px;
    padding: 0 10px;
    display: inline-flex;
    align-items: center;
    min-width: 52px;
    justify-content: center;
}

/* Autosave pill */
.autosave-pill {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.6);
    border-radius: 999px;
    padding: 3px 10px;
    font-size: 11px;
    white-space: nowrap;
}

/* ============================================================
   DESIGNER RAILS
   ============================================================ */

.designer-left-rail {
    grid-column: 1;
    grid-row: 2;
    display: flex;
    flex-direction: column;
    background: var(--bg-rail);
    border-right: 1px solid var(--border-soft);
    overflow: hidden;
}

.designer-right-rail {
    grid-column: 3;
    grid-row: 2;
    background: var(--bg-rail);
    border-left: 1px solid var(--border-soft);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.designer-canvas-outer {
    grid-column: 2;
    grid-row: 2;
    overflow: auto;
    background: var(--bg-page);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-6) var(--space-5);
}

/* ============================================================
   SHARED PANEL UTILITIES
   ============================================================ */

.panel-section-header {
    padding: 8px 12px 4px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-low);
    font-weight: 700;
    flex-shrink: 0;
}

.empty-state-small {
    padding: 16px 12px;
    color: var(--text-low);
    font-size: 12px;
    text-align: center;
}

.status-dot-green {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--status-success);
    flex-shrink: 0;
}

/* ============================================================
   TOOLBOX
   ============================================================ */

.toolbox {
    padding: var(--space-3);
    border-bottom: 1px solid var(--border-soft);
    flex-shrink: 0;
}

.toolbox-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-top: 6px;
}

.toolbox-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 8px;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    cursor: pointer;
    font: inherit;
    font-size: 12px;
    color: var(--text-default);
    transition: background 0.1s;
}
.toolbox-btn:not(:disabled):hover {
    background: var(--bg-stripe);
    border-color: var(--nalta-orange);
}
.toolbox-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}
.toolbox-icon {
    font-size: 13px;
    min-width: 16px;
    text-align: center;
}
.toolbox-label {
    flex: 1;
    font-size: 12px;
    font-weight: 500;
    text-align: left;
}
.toolbox-shortcut {
    font-size: 9px;
    color: var(--text-low);
    background: var(--bg-stripe);
    border: 1px solid var(--border-soft);
    border-radius: 3px;
    padding: 1px 4px;
    font-family: var(--font-mono);
}

/* ============================================================
   OBJECT EXPLORER
   ============================================================ */

.object-explorer {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

.object-explorer-subheader {
    padding: 2px 12px 6px;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-low);
    font-weight: 600;
    border-bottom: 1px solid var(--border-soft);
}

.object-explorer-list {
    flex: 1;
    overflow-y: auto;
    padding: 2px 0;
}

.object-row {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 6px 10px 6px 13px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.07s;
    border-left: 3px solid transparent;
}
.object-row:hover {
    background: var(--bg-card);
}
.object-row-selected {
    background: var(--bg-card) !important;
    border-left-color: var(--nalta-orange);
}
.object-row-selected .object-type-icon,
.object-row-selected .object-name {
    color: var(--nalta-orange);
    font-weight: 600;
}
.object-row {
    cursor: grab;
}
.object-row-drag-over {
    border-top: 2px solid var(--nalta-orange);
    background: var(--bg-card);
}
.object-row-dragging {
    opacity: 0.4;
    cursor: grabbing;
}

.object-type-icon {
    font-size: 11px;
    color: var(--text-low);
    min-width: 14px;
    text-align: center;
    flex-shrink: 0;
}
.object-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-default);
}

.object-explorer-footer {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 11px;
    border-top: 1px solid var(--border-soft);
    color: var(--text-muted);
    flex-shrink: 0;
}
.object-footer-count {
    margin-left: auto;
}

/* ============================================================
   CANVAS
   ============================================================ */

.canvas-work-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
}

.canvas-label-card {
    position: relative;
    background: #ffffff;
    box-shadow:
        0 2px 8px rgba(15,23,42,0.10),
        0 8px 32px rgba(15,23,42,0.06);
    border: 1px solid var(--border-soft);
    flex-shrink: 0;
}

/* All canvas elements */
.canvas-el {
    position: absolute;
    cursor: pointer;
    box-sizing: border-box;
    user-select: none;
}
.canvas-el:hover:not(.canvas-el-selected) {
    outline: 1px dashed rgba(255,122,26,0.45);
    outline-offset: 1px;
}
.canvas-el-selected {
    outline: 2px solid var(--nalta-orange) !important;
    outline-offset: 1px;
    z-index: 5;
}

/* Barcode placeholder */
.canvas-el-barcode {
    background: #f7f7f7;
    border: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    overflow: hidden;
}
.canvas-barcode-type {
    font-size: 9px;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-family: var(--font-mono);
    pointer-events: none;
    font-weight: 600;
}
.canvas-barcode-value {
    font-size: 8px;
    color: #bbb;
    font-family: var(--font-mono);
    pointer-events: none;
    max-width: 90%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
}

/* Picture element */
.canvas-el-picture {
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #fafafa;
    border: 1px dashed #d0d0d0;
}
.canvas-picture-label {
    color: #ccc;
    font-size: 11px;
    pointer-events: none;
}

/* Canvas footnote */
.canvas-footnote {
    font-size: 11px;
    color: var(--text-low);
    margin: 0;
    letter-spacing: 0.02em;
    text-align: center;
}

/* ============================================================
   PROPERTIES PANEL
   ============================================================ */

.properties-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.properties-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-soft);
    padding: 0 var(--space-1);
    flex-shrink: 0;
    background: var(--bg-card);
}

.props-tab {
    padding: 10px 12px;
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    font: inherit;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    margin-bottom: -1px;
    transition: color 0.1s;
}
.props-tab:hover:not(:disabled) { color: var(--text-default); }
.props-tab-active {
    color: var(--text-strong);
    font-weight: 600;
    border-bottom-color: var(--nalta-orange);
}
.props-tab:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.props-selection-block {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-soft);
    background: var(--bg-card);
    flex-shrink: 0;
}
.props-type-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nalta-orange-soft);
    color: var(--nalta-orange);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 1px;
}
.props-selection-meta { min-width: 0; }
.props-object-name {
    font-weight: 600;
    font-size: 12px;
    color: var(--text-strong);
    font-family: var(--font-mono);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.props-summary {
    font-size: 11px;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Collapsible sections */
.props-section {
    border-bottom: 1px solid var(--border-soft);
    flex-shrink: 0;
}
.props-section-summary {
    list-style: none;
    cursor: pointer;
    padding: 8px 12px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-low);
    font-weight: 700;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.props-section-summary::-webkit-details-marker { display: none; }
.props-section-summary::after {
    content: "▸";
    color: var(--text-low);
    transition: transform 0.1s;
}
details[open] .props-section-summary::after {
    content: "▾";
}

.props-body {
    padding: 4px 12px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Disabled inputs in props panel */
.props-body .field-input:disabled {
    background: var(--bg-stripe);
    cursor: default;
    color: var(--text-default);
    opacity: 1;
}

.props-footer {
    padding: 12px;
    border-top: 1px solid var(--border-soft);
    margin-top: auto;
    flex-shrink: 0;
}

/* Picture thumbnail in properties */
.picture-thumb {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-stripe);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    max-height: 80px;
}
.picture-thumb img {
    max-width: 100%;
    max-height: 72px;
    object-fit: contain;
}

/* ============================================================
   PHASE 4 ADDITIONS
   ============================================================ */

/* Dirty indicator dot inside the name pill */
.designer-name-pill-dirty {
    border-color: var(--nalta-orange);
}
.dirty-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--nalta-orange);
    margin-left: 5px;
    vertical-align: middle;
    flex-shrink: 0;
}

/* Autosave pill variants */
.autosave-pill-ok {
    background: rgba(16, 185, 129, 0.12);
    color: var(--status-success);
}
.autosave-pill-saving {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.75);
}

/* Selection chrome: name badge above element */
.canvas-name-badge {
    position: absolute;
    background: var(--nalta-orange);
    color: #fff;
    font-size: 9px;
    font-weight: 600;
    font-family: var(--font-mono);
    padding: 2px 5px;
    border-radius: 3px 3px 0 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
    pointer-events: none;
    user-select: none;
    z-index: 20;
    line-height: 1.4;
}

/* Size badge at top-right of selected element */
.canvas-size-badge {
    position: absolute;
    background: rgba(13, 19, 37, 0.7);
    color: rgba(255, 255, 255, 0.9);
    font-size: 9px;
    font-family: var(--font-mono);
    padding: 2px 5px;
    border-radius: 3px;
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
    z-index: 20;
    line-height: 1.4;
}

/* Resize handles (8 around selected element) */
.canvas-handle {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #fff;
    border: 1.5px solid var(--nalta-orange);
    border-radius: 2px;
    z-index: 20;
    box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}
.canvas-handle:hover {
    background: var(--nalta-orange);
}

/* Cursor shapes for each resize handle direction */
.canvas-handle-nw { cursor: nw-resize; }
.canvas-handle-n  { cursor: n-resize; }
.canvas-handle-ne { cursor: ne-resize; }
.canvas-handle-w  { cursor: w-resize; }
.canvas-handle-e  { cursor: e-resize; }
.canvas-handle-sw { cursor: sw-resize; }
.canvas-handle-s  { cursor: s-resize; }
.canvas-handle-se { cursor: se-resize; }

/* Snap guide lines */
.canvas-snap-guide-v,
.canvas-snap-guide-h {
    position: absolute;
    pointer-events: none;
    z-index: 100;
    background: #e63946;
    opacity: 0.75;
}
.canvas-snap-guide-v {
    top: 0;
    bottom: 0;
    width: 1px;
}
.canvas-snap-guide-h {
    left: 0;
    right: 0;
    height: 1px;
}

/* Dragging state */
.canvas-el-dragging {
    opacity: 0.85;
    cursor: grabbing !important;
}
.canvas-el:not(.canvas-el-selected):not(.canvas-el-dragging) {
    cursor: grab;
}

/* Object explorer reorder buttons */
.object-row-actions {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.1s;
}
.object-row:hover .object-row-actions,
.object-row-selected .object-row-actions {
    opacity: 1;
}
.obj-order-btn {
    background: transparent;
    border: none;
    color: var(--text-low);
    font-size: 9px;
    cursor: pointer;
    padding: 1px 3px;
    border-radius: 2px;
    line-height: 1;
}
.obj-order-btn:hover:not(:disabled) {
    background: var(--nalta-orange-soft);
    color: var(--nalta-orange);
}
.obj-order-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* File input in properties panel */
.field-input-file {
    font: inherit;
    font-size: 12px;
    color: var(--text-muted);
    width: 100%;
}

/* Unit suffix inside field label */
.unit {
    color: var(--text-low);
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
}

/* Mono field (for IDs etc) */
.field-mono {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.02em;
}

/* ============================================================
   PHASE 5 ADDITIONS
   ============================================================ */

/* Zoom host: reserves the correct layout footprint so the
   outer scroll container scrolls to the right size. The label
   card inside is transformed with scale(), which doesn't affect
   normal flow, so we set explicit dimensions here. */
.canvas-zoom-host {
    position: relative;
    flex-shrink: 0;
}

/* Grid background pattern shown when doc.Grid.ShowGrid is true.
   background-size is set inline (it depends on grid.Width/Height). */
.canvas-grid-visible {
    background-image:
        linear-gradient(to right,  rgba(0, 0, 0, 0.07) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 0, 0, 0.07) 1px, transparent 1px);
}

/* Active state for Grid / Snap toggle buttons in the top bar */
.topbar-btn-active {
    background: rgba(255, 122, 26, 0.18) !important;
    border-color: var(--nalta-orange) !important;
    color: var(--nalta-orange) !important;
}

/* ============================================================
   PHASE 6 ADDITIONS — Import / Export modal
   ============================================================ */

/* Full-screen dimming overlay; sits behind the modal card */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1000;
}

/* Centered modal card */
.modal-card {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1001;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.22);
    width: min(560px, 92vw);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Modal header bar */
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px 12px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

.modal-close-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    color: var(--text-low);
    padding: 0 4px;
    border-radius: 4px;
}
.modal-close-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover, #f0f0f0);
}

/* Tab strip */
.modal-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    padding: 0 18px;
    background: var(--bg-rail, #f7f7f8);
}

.modal-tab {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 9px 14px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-low);
    cursor: pointer;
    margin-bottom: -1px;
}
.modal-tab:hover {
    color: var(--text-primary);
}
.modal-tab-active {
    color: var(--nalta-orange);
    border-bottom-color: var(--nalta-orange);
    font-weight: 600;
}

/* Modal body */
.modal-body {
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.modal-hint {
    font-size: 12px;
    color: var(--text-low);
    margin: 0;
}
.modal-hint code {
    font-family: var(--font-mono, monospace);
    font-size: 11px;
    background: #f2f2f3;
    border-radius: 3px;
    padding: 1px 4px;
}

/* Paste textarea */
.modal-textarea {
    width: 100%;
    height: 200px;
    font-family: var(--font-mono, monospace);
    font-size: 12px;
    line-height: 1.5;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    resize: vertical;
    color: var(--text-primary);
    background: #fafafa;
    outline: none;
    transition: border-color 0.15s;
}
.modal-textarea:focus {
    border-color: var(--nalta-orange);
    background: #fff;
}

/* File tab area */
.modal-file-area {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    min-height: 80px;
    justify-content: center;
}

/* Buttons inside the modal — styled for light backgrounds */
.modal-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    height: 30px;
    padding: 0 14px;
    font: inherit;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    border-radius: 6px;
    border: 1px solid #d0d0d3;
    background: #f0f0f1;
    color: #222;
    cursor: pointer;
    transition: background 0.1s;
    user-select: none;
    text-decoration: none;
}
.modal-btn:hover:not(:disabled) {
    background: #e2e2e4;
}
.modal-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.modal-btn-primary {
    background: var(--nalta-orange);
    border-color: var(--nalta-orange-dim, #cc5a00);
    color: #fff;
    font-weight: 600;
}
.modal-btn-primary:hover:not(:disabled) {
    background: var(--nalta-orange-dim, #cc5a00);
}

/* Hide the native file input; the <label for="..."> triggers it */
.modal-file-input-hidden {
    display: none;
}

/* Loaded file indicator */
.modal-file-loaded {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f0faf0;
    border: 1px solid #b8e0b8;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-primary);
    width: 100%;
}
.modal-file-icon {
    font-size: 16px;
}
.modal-file-name {
    flex: 1;
    font-family: var(--font-mono, monospace);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.modal-file-clear {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-low);
    padding: 0 2px;
    border-radius: 3px;
}
.modal-file-clear:hover {
    color: var(--text-primary);
}

/* Validation error list */
.modal-errors {
    margin: 0;
    padding: 10px 14px;
    list-style: disc inside;
    background: #fff4f4;
    border: 1px solid #f5c0c0;
    border-radius: 6px;
    font-size: 12px;
    color: #c0392b;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Modal footer */
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 18px;
    border-top: 1px solid var(--border);
    background: var(--bg-rail, #f7f7f8);
}
/* ------------------------------------------------------------------ */
/*  Preview Modal                                                       */
/* ------------------------------------------------------------------ */
.preview-modal-card {
    width: min(700px, 96vw);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    /* Override the fixed 50% centering so tall content doesn't clip at the top */
    top: 5vh;
    transform: translate(-50%, 0);
}
.preview-choose-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
}
.preview-choose-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.preview-loading-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
}
.preview-result-body {
    overflow-y: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex: 1;
    min-height: 0;
    padding: 16px 18px;
}
.preview-image {
    max-width: 100%;
    border: 1px solid var(--border);
    border-radius: 4px;
}
.preview-error {
    color: var(--color-error, #c0392b);
    font-size: 0.9rem;
    margin: 0 0 8px;
}