/* ============================================
 * ParaTowers — Parametric Tower Tool Styles
 * Light theme — uses design system CSS variables
 * ============================================ */

/* Panel Container */
.pt-panel {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pt-hint {
    color: var(--text-muted);
    font-size: 12px;
    text-align: center;
    padding: 16px 8px;
    font-style: italic;
}

/* ============================================
 * Tower Layers List
 * ============================================ */

.pt-tower-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    max-height: 180px;
    overflow-y: auto;
}

.pt-tower-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.pt-tower-item:hover {
    background: var(--bg-tertiary);
}

.pt-tower-item.pt-selected {
    background: var(--tab-design-light);
    border-color: var(--tab-design);
}

.pt-tower-color {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    flex-shrink: 0;
}

.pt-tower-name {
    flex: 1;
    font-size: 12px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pt-tower-info {
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
}

.pt-tower-actions {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.pt-tower-item:hover .pt-tower-actions {
    opacity: 1;
}

/* ============================================
 * Buttons
 * ============================================ */

.pt-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.pt-btn:hover {
    background: var(--bg-quaternary);
    border-color: var(--border-strong);
    color: var(--text-primary);
}

.pt-btn-sm {
    padding: 3px 8px;
    font-size: 10px;
}

.pt-btn-active {
    background: var(--tab-design-light);
    border-color: var(--tab-design);
    color: var(--tab-design);
    font-weight: 600;
}

.pt-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    border-radius: var(--radius-xs);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.pt-icon-btn:hover {
    background: var(--bg-quaternary);
    color: var(--text-primary);
}

.pt-icon-btn.pt-danger:hover {
    background: var(--danger-light);
    color: var(--danger);
}

/* ============================================
 * Footprint Shape Selector
 * ============================================ */

.pt-shape-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
}

.pt-shape-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 4px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.pt-shape-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-strong);
    color: var(--text-primary);
}

.pt-shape-btn.pt-shape-active {
    background: var(--tab-design-light);
    border-color: var(--tab-design);
    color: var(--tab-design);
    font-weight: 600;
}

.pt-shape-icon {
    font-size: 16px;
    line-height: 1;
}

.pt-shape-label {
    font-size: 9px;
    text-align: center;
    line-height: 1.1;
}

/* ============================================
 * Sliders & Controls
 * ============================================ */

.pt-control-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pt-slider-row {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pt-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

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

.pt-range {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    border-radius: 4px;
    outline: none;
    cursor: pointer;
}

.pt-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--tab-design);
    cursor: pointer;
}

.pt-range::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--tab-design);
    cursor: pointer;
    border: none;
}

.pt-num {
    width: 58px;
    padding: 3px 6px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    font-size: 11px;
    text-align: right;
    outline: none;
}

.pt-num:focus {
    border-color: var(--tab-design);
    box-shadow: 0 0 0 2px var(--tab-design-light);
}

.pt-input {
    width: 100%;
    padding: 5px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    font-size: 12px;
    outline: none;
}

.pt-input:focus {
    border-color: var(--tab-design);
    box-shadow: 0 0 0 2px var(--tab-design-light);
}

/* ============================================
 * Color Row
 * ============================================ */

.pt-color-row {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 8px;
}

.pt-color-row label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
}

.pt-color-row input[type="color"] {
    width: 28px;
    height: 22px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xs);
    cursor: pointer;
    background: transparent;
    padding: 1px;
}

/* ============================================
 * Curve Editor
 * ============================================ */

.pt-curve-editor {
    margin-top: 6px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-primary);
}

.pt-curve-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 8px;
    background: var(--bg-tertiary);
}

.pt-curve-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.pt-curve-preset {
    padding: 2px 6px;
    font-size: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    color: var(--text-secondary);
    cursor: pointer;
    outline: none;
}

.pt-curve-preset:focus {
    border-color: var(--tab-design);
}

.pt-curve-canvas {
    display: block;
    width: 100%;
}

/* ============================================
 * Statistics
 * ============================================ */

.pt-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.pt-stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.pt-stat-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--tab-design);
    line-height: 1.2;
}

.pt-stat-label {
    font-size: 9px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 2px;
    line-height: 1.2;
}

.pt-stats-section-title {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
    margin-top: 10px;
    margin-bottom: 4px;
}

.pt-zone-breakdown {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.pt-zone-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-xs);
    font-size: 11px;
}

.pt-zone-icon {
    font-size: 12px;
    flex-shrink: 0;
}

.pt-zone-name {
    flex: 1;
    color: var(--text-primary);
    text-transform: capitalize;
}

.pt-zone-floors {
    color: var(--text-muted);
    font-size: 10px;
}

.pt-zone-gfa {
    color: var(--text-secondary);
    font-size: 10px;
    min-width: 60px;
    text-align: right;
}

.pt-zone-units {
    color: var(--tab-design);
    font-size: 10px;
    min-width: 50px;
    text-align: right;
}

/* ============================================
 * Layer List Items (redesigned sidebar)
 * ============================================ */

.pt-layer-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.pt-layer-item:hover {
    background: var(--bg-tertiary);
}

.pt-layer-item.selected {
    background: var(--tab-design-light);
    border-color: var(--tab-design);
}

.pt-layer-dot {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    flex-shrink: 0;
}

.pt-layer-name {
    flex: 1;
    font-size: 12px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pt-layer-info {
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
}

.pt-layer-actions {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.pt-layer-item:hover .pt-layer-actions {
    opacity: 1;
}

.pt-layer-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    border-radius: var(--radius-xs);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.pt-layer-btn:hover {
    background: var(--bg-quaternary);
    color: var(--text-primary);
}

/* Shape selector */
.pt-shape-selector {
    margin-bottom: 6px;
}

.pt-shape-btn.active {
    background: var(--tab-design-light);
    border-color: var(--tab-design);
    color: var(--tab-design);
    font-weight: 600;
}

/* Stats section in sidebar */
.pt-stats-section {
    padding: 6px 0;
}