/* ============================================
   idw-interpolation.css — 空间插值计算（IDW）专用样式
   ============================================ */

/* ---- IDW Section Title ---- */
.idw-section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.idw-section-title span {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.idw-actions {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

/* ---- Point Table ---- */
.idw-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    max-height: 320px;
    overflow-y: auto;
}

.idw-point-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.idw-point-table thead {
    position: sticky;
    top: 0;
    z-index: 2;
}

.idw-point-table th {
    background: var(--color-bg);
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    border-bottom: 2px solid var(--color-border-light);
    white-space: nowrap;
}

.idw-point-table td {
    padding: var(--space-xs) var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text);
}

.idw-point-table tbody tr:hover {
    background: var(--color-sky);
}

.idw-point-table td input {
    width: 100%;
    padding: 4px 8px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font-mono);
    background: transparent;
    color: var(--color-text);
    transition: var(--transition-fast);
}

.idw-point-table td input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: white;
    box-shadow: 0 0 0 2px rgba(46,125,50,0.1);
}

.idw-point-table .idw-delete-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    font-size: 1rem;
    line-height: 1;
}

.idw-point-table .idw-delete-btn:hover {
    color: #C62828;
    background: #FFEBEE;
}

/* ---- Batch Input ---- */
.idw-batch-input textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background: var(--color-bg);
    color: var(--color-text);
    resize: vertical;
    min-height: 80px;
}

.idw-batch-input textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(46,125,50,0.1);
}

/* ---- Color Schemes ---- */
.idw-color-schemes {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.idw-color-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.idw-color-option input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.idw-color-preview {
    width: 48px;
    height: 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    display: inline-block;
}

/* ---- Viz Toolbar ---- */
.idw-viz-toolbar {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
}

.idw-legend-bar {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    font-family: var(--font-mono);
}

.idw-legend-bar canvas {
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    display: block;
}

/* ---- Canvas Wrap ---- */
.idw-canvas-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background: #0a1628;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
}

.idw-canvas-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: crosshair;
}

.idw-canvas-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 22, 40, 0.85);
    color: rgba(255,255,255,0.7);
    font-size: 0.9375rem;
    z-index: 2;
    transition: opacity 0.3s ease;
}

.idw-canvas-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

/* ---- Tooltip on canvas ---- */
.idw-canvas-tooltip {
    position: absolute;
    background: rgba(0,0,0,0.85);
    color: white;
    padding: 6px 10px;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    pointer-events: none;
    z-index: 10;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255,255,255,0.1);
    display: none;
}

/* ---- Query Result highlight ---- */
#queryResultRow {
    background: rgba(46,125,50,0.05);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    margin-top: var(--space-sm);
}

/* ---- Formula block enhancement ---- */
.tool-info-card .formula {
    line-height: 1.6;
}

/* ---- Responsive adjustments ---- */
@media (max-width: 1023px) {
    .idw-viz-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .idw-legend-bar {
        margin-left: 0;
        margin-top: var(--space-sm);
    }
    .idw-color-schemes {
        gap: var(--space-md);
    }
    .idw-section-title {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 479px) {
    .idw-canvas-wrap {
        aspect-ratio: 1/1;
    }
    .idw-point-table th,
    .idw-point-table td {
        padding: var(--space-xs) var(--space-sm);
        font-size: 0.8125rem;
    }
    .idw-actions {
        width: 100%;
    }
    .idw-actions .preset-btn {
        flex: 1;
        text-align: center;
    }
}