/* ==========================================
   AI Inbox Processing - Side Panel
   ========================================== */

.ai-processing-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: var(--z-modal);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-smooth);
}

.ai-processing-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.ai-processing-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 420px;
    max-width: 100vw;
    background: var(--bg-card);
    border-left: 1px solid var(--border-light);
    box-shadow: none;
    z-index: calc(var(--z-modal) + 1);
    transform: translateX(100%);
    transition: transform var(--transition-smooth),
                box-shadow var(--transition-smooth);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.ai-processing-panel.visible {
    transform: translateX(0);
    box-shadow: var(--shadow-2xl);
}

/* Suppress transition during resize to prevent diagonal animation at breakpoints */
.ai-processing-panel.no-transition {
    transition: none !important;
}

/* Panel Header */
.ai-panel-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-5) var(--space-4);
    background: var(--bg-card);
}

.ai-panel-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-blue-light);
    border-radius: var(--radius-lg);
    color: var(--accent-blue);
}

.ai-panel-icon svg {
    width: 18px;
    height: 18px;
}

.ai-panel-title {
    flex: 1;
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--accent-blue);
}

.ai-panel-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.ai-panel-close:hover {
    background: var(--surface-hover);
    color: var(--text-secondary);
}

.ai-panel-close svg {
    width: 18px;
    height: 18px;
}

/* Panel Content Area */
.ai-panel-content {
    flex: 1;
    padding: var(--space-6);
    overflow-y: auto;
}