/* ============================================
   Toolbar & Floating Panels
   ============================================ */

/* App toolbar */
#app-toolbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--toolbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--node-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: var(--z-toolbar);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.toolbar-left,
.toolbar-center,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.app-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-title {
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.3px;
}

/* Toolbar buttons */
.toolbar-btn {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toolbar-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--node-border);
}

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

.toolbar-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.toolbar-separator {
    width: 1px;
    height: 24px;
    background: var(--node-border);
    margin: 0 4px;
}

/* Layout selector */
.layout-selector {
    display: flex;
    gap: 2px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 2px;
    border: 1px solid var(--node-border);
}

/* Zoom display */
.zoom-display {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    min-width: 48px;
    text-align: center;
    padding: 4px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--node-border);
    border-radius: var(--radius-sm);
    font-variant-numeric: tabular-nums;
}

/* Zoom controls (bottom-right) */
.zoom-controls {
    position: fixed;
    bottom: 24px;
    left: 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: var(--z-zoom-controls);
}

.zoom-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--node-border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.zoom-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Export menu */
.export-menu {
    position: fixed;
    top: var(--toolbar-height);
    right: 80px;
    background: var(--bg-secondary);
    border: 1px solid var(--node-border);
    border-radius: var(--radius-md);
    padding: 4px;
    z-index: var(--z-export-menu);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 140px;
}

.export-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    font-family: var(--font-family);
}

.export-option:hover {
    background: var(--bg-tertiary);
}

/* ---- Style Toolbar (floating) ---- */
.style-toolbar {
    position: fixed;
    background: var(--bg-secondary);
    border: 1px solid var(--node-border);
    border-radius: var(--radius-lg);
    padding: 12px;
    z-index: var(--z-style-toolbar);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 160px;
}

.style-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.style-row label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    white-space: nowrap;
}

.style-row input[type="color"] {
    width: 28px;
    height: 28px;
    border: 1px solid var(--node-border);
    border-radius: var(--radius-sm);
    background: transparent;
    cursor: pointer;
    padding: 0;
}

.style-row input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.style-row input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.style-row select {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--node-border);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    cursor: pointer;
    outline: none;
}

.style-row select:hover {
    border-color: var(--accent-primary);
}