html, body {
    height: 100%;
    margin: 0;
    font-family: Segoe UI, Arial, sans-serif;
    font-size: 14px;
    color: #222;
}

#app {
    height: 100%;
}

.loading-splash {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #666;
}

#blazor-error-ui {
    background: #fff3cd;
    border-top: 1px solid #ffe69c;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem;
    position: fixed;
    width: 100%;
    bottom: 0;
    z-index: 1000;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    float: right;
}

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

/* ---- top toolbar ---- */
.toolbar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 8px 16px;
    background: #24313f;
    color: #fff;
    flex-wrap: wrap;
}

.toolbar h1 {
    font-size: 16px;
    margin: 0 16px 0 0;
    font-weight: 600;
    white-space: nowrap;
}

.toolbar label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    white-space: nowrap;
}

.toolbar input[type=number] {
    width: 64px;
}

.toolbar .spacer {
    flex: 1;
}

.toolbar button {
    background: #3d7bd6;
    border: none;
    color: #fff;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}

.toolbar button:hover {
    background: #2f63b0;
}

.toolbar button.secondary {
    background: #4b5b6c;
}

.toolbar button.secondary:hover {
    background: #3a4753;
}

/* ---- main 3-column workspace ---- */
.workspace {
    display: flex;
    flex: 1;
    min-height: 0;
}

.toolbox {
    width: 130px;
    padding: 12px 8px;
    border-right: 1px solid #ddd;
    background: #f7f7f8;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
}

.toolbox h2, .properties-panel h2 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: #777;
    margin: 0 0 4px 0;
}

.toolbox-item {
    cursor: grab;
    padding: 12px 6px;
    border: 1px dashed #b7b7b7;
    border-radius: 8px;
    text-align: center;
    background: #fff;
    user-select: none;
    font-size: 13px;
}

.toolbox-item:active {
    cursor: grabbing;
}

.toolbox-item .icon {
    font-size: 22px;
    display: block;
    margin-bottom: 4px;
}

.canvas-wrapper {
    flex: 1;
    overflow: auto;
    background: #e5e7ea;
    display: flex;
    justify-content: center;
    padding: 24px;
}

.canvas-wrapper canvas {
    box-shadow: 0 0 8px rgba(0, 0, 0, .25);
}

.properties-panel {
    width: 300px;
    padding: 14px;
    border-left: 1px solid #ddd;
    background: #f7f7f8;
    overflow-y: auto;
}

.prop-row {
    margin-bottom: 10px;
}

.prop-row label {
    display: block;
    font-size: 12px;
    color: #555;
    margin-bottom: 3px;
}

.prop-row input[type=text],
.prop-row input[type=number],
.prop-row select,
.prop-row textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 5px 6px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.prop-actions {
    display: flex;
    gap: 8px;
    margin-top: 14px;
}

.prop-actions button {
    flex: 1;
    padding: 6px 0;
    border: 1px solid #ccc;
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
}

.prop-actions button.danger {
    color: #b3261e;
    border-color: #e5b4b0;
}

.empty-hint {
    color: #888;
    font-size: 13px;
    line-height: 1.5;
}

/* ---- bottom ZPL preview drawer ---- */
.zpl-drawer {
    border-top: 1px solid #ddd;
    background: #fff;
}

.zpl-drawer summary {
    padding: 8px 16px;
    cursor: pointer;
    font-size: 13px;
    color: #444;
    background: #f0f1f3;
}

.zpl-drawer-body {
    display: flex;
    gap: 12px;
    padding: 10px 16px;
    align-items: flex-start;
}

textarea.zpl-code {
    width: 100%;
    height: 160px;
    font-family: Consolas, Menlo, monospace;
    font-size: 12px;
    box-sizing: border-box;
}

.labelary-preview {
    max-width: 260px;
}

.labelary-preview img {
    max-width: 100%;
    border: 1px solid #ccc;
    background: #fff;
}

.import-warnings {
    margin-top: 8px;
    padding: 8px 12px;
    background: #fff8e1;
    border: 1px solid #f0d68a;
    border-radius: 6px;
    font-size: 12px;
    color: #6b5900;
    max-height: 140px;
    overflow-y: auto;
}

.import-warnings ul {
    margin: 4px 0 0 0;
    padding-left: 18px;
}