/**
 * ===================================
 * MECHANIC BROWSER STYLES V2.0
 * ===================================
 * 
 * Modern component-card based design matching Skill Line Builder
 * Context-aware styling for mob vs skill editor
 * 
 * @version 2.0.0
 * @date December 2, 2025
 */

/* ================================
   MODAL OVERLAY & CONTAINER
   ================================ */

#mechanicBrowserOverlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10100;
    padding: 2rem;
    animation: fadeIn 0.3s ease-out;
}

#mechanicBrowserOverlay[style*="display: flex"] {
    display: flex !important;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.mechanic-browser-modal {
    background: var(--bg-secondary, #1a1d2e);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 1600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ================================
   HEADER
   ================================ */

.mechanic-browser-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    background: var(--bg-elevated, #1e2235);
}

.mechanic-browser-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.mechanic-browser-title i {
    font-size: 1.5rem;
    color: var(--accent-primary, #7c3aed);
}

.mechanic-browser-title h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary, #e2e8f0);
}

.mechanic-context-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mechanic-context-badge.context-mob {
    background: rgba(124, 58, 237, 0.2);
    color: #a78bfa;
    border: 1px solid rgba(124, 58, 237, 0.3);
}

.mechanic-context-badge.context-skill {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.mechanic-browser-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.esc-hint {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary, #94a3b8);
}

.esc-hint kbd {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-family: monospace;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-secondary, #94a3b8);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.btn-close:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary, #e2e8f0);
}

/* ================================
   TWO-PANEL LAYOUT
   ================================ */

.mechanic-browser-body {
    display: grid;
    grid-template-columns: 45% 55%;
    gap: 0;
    flex: 1;
    min-height: 0; /* Critical for flex scrolling */
    overflow: hidden;
    background: var(--bg-primary, #0f1219);
}

/* ================================
   LEFT PANEL: MECHANIC SELECTION
   ================================ */

.mechanic-selection-panel {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    background: var(--bg-secondary, #1a1d2e);
    height: 100%; /* Ensure full height */
    min-height: 0; /* Allow flex shrinking */
    overflow: hidden; /* Prevent overflow at this level */
}

.mechanic-search-section {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
}

.mechanic-search-bar {
    position: relative;
    margin-bottom: 1rem;
}

.mechanic-search-bar input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    background: var(--bg-primary, #0f1219);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    color: var(--text-primary, #e2e8f0);
    font-size: 0.875rem;
    transition: all 0.2s;
}

.mechanic-search-bar input:focus {
    outline: none;
    border-color: var(--accent-primary, #7c3aed);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.mechanic-search-bar i {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary, #94a3b8);
    pointer-events: none;
}

.mechanic-quick-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-chip {
    background: var(--bg-primary, #0f1219);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    color: var(--text-secondary, #94a3b8);
    padding: 0.375rem 0.75rem;
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.filter-chip:hover {
    border-color: var(--accent-primary, #7c3aed);
    background: rgba(124, 58, 237, 0.15);
    transform: translateY(-1px);
}

.filter-chip.active {
    background: var(--accent-primary, #7c3aed);
    color: white;
    border-color: var(--accent-primary, #7c3aed);
    box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
}

.filter-chip i {
    font-size: 0.875rem;
}

.mechanic-list-container {
    flex: 1;
    overflow-y: auto; /* Enable vertical scrolling */
    overflow-x: hidden; /* Prevent horizontal scrolling */
    padding: 1rem;
    min-height: 0; /* Critical for flex scrolling */
}

.mechanic-grid {
    display: grid;
    gap: 0.75rem;
}

.mechanic-list-item {
    background: var(--bg-elevated, #1e2235);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.mechanic-list-item:hover {
    border-color: var(--accent-primary, #7c3aed);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.15);
    transform: translateY(-2px);
}

.mechanic-list-item.selected {
    border-color: var(--accent-primary, #7c3aed);
    background: rgba(124, 58, 237, 0.15);
    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.3);
}

.mechanic-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.mechanic-item-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary, #e2e8f0);
    font-family: 'Consolas', 'Monaco', monospace;
}

.mechanic-item-favorite {
    background: none;
    border: none;
    color: var(--text-secondary, #94a3b8);
    cursor: pointer;
    padding: 0.25rem;
    transition: all 0.2s;
    font-size: 1rem;
}

.mechanic-item-favorite:hover,
.mechanic-item-favorite.active {
    color: #fbbf24;
}

.mechanic-item-description {
    font-size: 0.75rem;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.mechanic-item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.mechanic-tag {
    font-size: 0.625rem;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    background: rgba(124, 58, 237, 0.2);
    color: #a78bfa;
    font-family: monospace;
    font-weight: 500;
}

.mechanic-list-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary, #94a3b8);
}

.mechanic-list-empty i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

/* ================================
   RIGHT PANEL: CONFIGURATION
   ================================ */

.mechanic-config-panel {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary, #0f1219);
    height: 100%; /* Ensure full height */
    min-height: 0; /* Allow flex shrinking */
    overflow: hidden; /* Prevent overflow at this level */
}

.mechanic-config-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    background: var(--bg-secondary, #1a1d2e);
}

.selected-mechanic-info {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.selected-mechanic-icon {
    font-size: 2rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 58, 237, 0.15);
    border-radius: 8px;
}

.selected-mechanic-details h3 {
    margin: 0 0 0.5rem;
    font-size: 1.125rem;
    color: var(--text-primary, #e2e8f0);
    font-family: 'Consolas', 'Monaco', monospace;
}

.selected-mechanic-details p {
    margin: 0 0 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.5;
}

.selected-mechanic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.selected-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.625rem;
    border-radius: 12px;
    background: rgba(124, 58, 237, 0.2);
    color: #a78bfa;
    font-family: monospace;
    font-weight: 500;
}

.mechanic-config-body {
    flex: 1;
    overflow-y: auto; /* Enable vertical scrolling */
    overflow-x: hidden; /* Prevent horizontal scrolling */
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-height: 0; /* Critical for flex scrolling */
}

.mechanic-config-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary, #94a3b8);
    text-align: center;
    padding: 2rem;
}

.mechanic-config-empty i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.2;
}

.mechanic-config-empty h3 {
    margin: 0 0 0.5rem;
    font-size: 1.125rem;
    color: var(--text-primary, #e2e8f0);
}

/* ================================
   COMPONENT CARDS (Match Skill Line Builder)
   ================================ */

.mb-component-card {
    background: var(--bg-secondary, #1a1d2e);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    padding: 1.25rem;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
}

.mb-component-card:hover {
    border-color: var(--accent-primary, #7c3aed);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.15);
}

.mb-component-card.filled {
    border-color: rgba(34, 197, 94, 0.3);
    background: var(--bg-elevated, #1e2235);
}

.mb-component-card.required {
    border-left: 3px solid #ef4444;
}

.mb-component-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.mb-component-icon {
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 58, 237, 0.1);
    border-radius: 6px;
}

.mb-component-info {
    flex: 1;
}

.mb-component-info h4 {
    margin: 0 0 0.25rem;
    font-size: 0.9375rem;
    color: var(--text-primary, #e2e8f0);
    font-weight: 600;
}

.mb-component-badge {
    font-size: 0.6875rem;
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.mb-component-badge.required {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.mb-component-badge.optional {
    background: rgba(156, 163, 175, 0.2);
    color: #9ca3af;
}

.mb-component-status {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mb-component-status i {
    font-size: 1rem;
}

.mb-component-status i.fa-circle {
    color: #6b7280;
}

.mb-component-status i.fa-check-circle {
    color: #10b981;
}

.mb-component-status i.fa-exclamation-circle {
    color: #ef4444;
}

.mb-component-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.mb-attribute-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    position: relative;
}

.mb-attribute-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary, #94a3b8);
    font-weight: 500;
}

.mb-attribute-label code {
    background: rgba(124, 58, 237, 0.15);
    color: #a78bfa;
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: monospace;
}

.info-icon {
    color: var(--text-secondary, #94a3b8);
    cursor: help;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.info-icon:hover {
    color: var(--accent-primary, #7c3aed);
}

.mb-attribute-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--bg-primary, #0f1219);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    border-radius: 6px;
    color: var(--text-primary, #e2e8f0);
    font-size: 0.8125rem;
    font-family: 'Consolas', 'Monaco', monospace;
    transition: all 0.2s;
}

.mb-attribute-input:focus {
    outline: none;
    border-color: var(--accent-primary, #7c3aed);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.mb-attribute-input.valid {
    border-color: rgba(34, 197, 94, 0.5);
}

.mb-attribute-input.invalid {
    border-color: rgba(239, 68, 68, 0.5);
}

.mb-attribute-hint {
    font-size: 0.75rem;
    color: var(--text-secondary, #94a3b8);
    font-style: italic;
}

.mb-component-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.mb-quick-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.mb-chip {
    background: var(--bg-primary, #0f1219);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    color: var(--text-secondary, #94a3b8);
    padding: 0.375rem 0.625rem;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-family: monospace;
}

.mb-chip:hover {
    border-color: var(--accent-primary, #7c3aed);
    background: rgba(124, 58, 237, 0.1);
    color: var(--text-primary, #e2e8f0);
}

.mb-chip.selected {
    background: var(--accent-primary, #7c3aed);
    border-color: var(--accent-primary, #7c3aed);
    color: white;
}

/* ================================
   TRIGGER WARNING (MOB ONLY)
   ================================ */

.trigger-warning {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 0.875rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 6px;
    font-size: 0.75rem;
    color: #fbbf24;
    margin-top: 0.5rem;
}

.trigger-warning i {
    font-size: 0.875rem;
}

/* ================================
   PREVIEW SECTION
   ================================ */

.mb-preview-card {
    background: var(--bg-secondary, #1a1d2e);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    overflow: hidden;
}

.mb-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    background: var(--bg-elevated, #1e2235);
}

.mb-preview-header h4 {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-primary, #e2e8f0);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mb-preview-copy {
    background: rgba(124, 58, 237, 0.15);
    border: 1px solid rgba(124, 58, 237, 0.3);
    color: #a78bfa;
    padding: 0.25rem 0.625rem;
    border-radius: 6px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.mb-preview-copy:hover {
    background: rgba(124, 58, 237, 0.25);
    border-color: rgba(124, 58, 237, 0.5);
}

.mb-preview-body {
    padding: 1rem;
    background: var(--bg-primary, #0f1219);
}

.mb-preview-code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    color: var(--text-primary, #e2e8f0);
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.mb-preview-validation {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    font-size: 0.8125rem;
}

.mb-preview-validation.valid {
    background: rgba(34, 197, 94, 0.1);
    color: #10b981;
}

.mb-preview-validation.invalid {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.mb-preview-validation i {
    font-size: 1rem;
}

/* ================================
   FOOTER ACTIONS
   ================================ */

.mechanic-browser-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 2rem;
    border-top: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
    background: var(--bg-elevated, #1e2235);
}

/* ================================
   BUTTONS
   ================================ */

.btn {
    padding: 0.625rem 1.25rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary {
    background: var(--bg-secondary, #1a1d2e);
    color: var(--text-primary, #e2e8f0);
    border: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
}

.btn-secondary:hover {
    background: var(--bg-elevated, #1e2235);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary {
    background: var(--accent-primary, #7c3aed);
    color: white;
}

.btn-primary:hover {
    background: #6d28d9;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
}

.btn-icon {
    padding: 0.5rem;
    width: 32px;
    height: 32px;
    justify-content: center;
}

/* ================================
   RESPONSIVE
   ================================ */

@media (max-width: 1200px) {
    .mechanic-browser-body {
        grid-template-columns: 40% 60%;
    }
}

@media (max-width: 968px) {
    .mechanic-browser-body {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }
    
    .mechanic-selection-panel {
        border-right: none;
        border-bottom: 1px solid var(--border-primary, rgba(255, 255, 255, 0.1));
        max-height: 40vh;
    }
}

@media (max-width: 640px) {
    #mechanicBrowserOverlay {
        padding: 0;
    }
    
    .mechanic-browser-modal {
        max-width: 100%;
        max-height: 100vh;
        border-radius: 0;
    }
    
    .mechanic-browser-header,
    .mechanic-config-body,
    .mechanic-browser-footer {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

/* ================================
   SCROLLBAR STYLING
   ================================ */

.mechanic-list-container::-webkit-scrollbar,
.mechanic-config-body::-webkit-scrollbar {
    width: 8px;
}

.mechanic-list-container::-webkit-scrollbar-track,
.mechanic-config-body::-webkit-scrollbar-track {
    background: transparent;
}

.mechanic-list-container::-webkit-scrollbar-thumb,
.mechanic-config-body::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.mechanic-list-container::-webkit-scrollbar-thumb:hover,
.mechanic-config-body::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ================================
   UNIFIED PARTICLE MECHANIC
   ================================ */

.unified-particle-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Conditional fields (hidden by default until condition met) */
.conditional-field {
    transition: opacity 0.3s ease, max-height 0.3s ease, margin 0.3s ease;
    overflow: hidden;
    max-height: 200px;
    opacity: 1;
}

.conditional-field.hidden {
    opacity: 0;
    max-height: 0;
    margin: 0;
    pointer-events: none;
}

/* DataType-specific field styling */
.datatype-field {
    border-left: 3px solid #6366f1;
    padding-left: 1rem;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 4px;
}

/* Color picker container */
.color-input-wrapper {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.mechanic-attribute-color {
    width: 60px;
    height: 38px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    cursor: pointer;
    transition: border-color 0.2s ease;
    padding: 0;
}

.mechanic-attribute-color:hover {
    border-color: rgba(99, 102, 241, 0.5);
}

.color-hex-input {
    flex: 1;
    font-family: 'Courier New', monospace;
    text-transform: uppercase;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #fff;
    transition: all 0.2s ease;
}

.color-hex-input:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.color-hex-input:invalid {
    border-color: #ef4444;
}

/* Material selector */
.mechanic-attribute-material {
    width: 100%;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #fff;
    font-family: inherit;
    transition: all 0.2s ease;
}

.mechanic-attribute-material:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.mechanic-attribute-material option {
    background: #1a1d2e;
    color: #fff;
}

/* Particle type selector with categories */
.mechanic-attribute-particle {
    width: 100%;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #fff;
    font-family: inherit;
    transition: all 0.2s ease;
}

.mechanic-attribute-particle:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.mechanic-attribute-particle optgroup {
    background: #0f1117;
    color: #6366f1;
    font-weight: bold;
    padding: 0.5rem 0;
}

.mechanic-attribute-particle option {
    background: #1a1d2e;
    color: #fff;
    padding: 0.3rem 1rem;
}

/* Variant selector */
.particle-variant-select {
    width: 100%;
    padding: 0.5rem;
    background: rgba(99, 102, 241, 0.1);
    border: 2px solid rgba(99, 102, 241, 0.3);
    border-radius: 6px;
    color: #fff;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.2s ease;
}

.particle-variant-select:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.particle-variant-select option {
    background: #1a1d2e;
    color: #fff;
}

/* Highlight required fields */
.mechanic-attribute-field .required {
    color: #ef4444;
    margin-left: 0.25rem;
}

/* ================================
   Particle Dropdown Selector
   ================================ */

.particle-selector-wrapper {
    position: relative;
    width: 100%;
    z-index: 999;
}

.particle-selector-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    position: relative;
    z-index: 1;
}

.particle-selector-display:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(99, 102, 241, 0.3);
}

.particle-selector-display:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.particle-preview {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.particle-icon {
    font-size: 1.2rem;
    line-height: 1;
}

.particle-name {
    color: #fff;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.particle-dropdown-arrow {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    transition: transform 0.2s ease;
}

.particle-selector-display:hover .particle-dropdown-arrow {
    color: rgba(99, 102, 241, 0.8);
}

/* Dropdown Menu */
.particle-dropdown-menu {
    position: fixed;
    background: #1a1d2e;
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(0, 0, 0, 0.1);
    z-index: 99999;
    max-height: 400px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Search Input */
.particle-search-input {
    width: 100%;
    padding: 0.75rem;
    background: rgba(0, 0, 0, 0.3);
    border: none;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
    color: #fff;
    font-size: 0.9rem;
    outline: none;
}

.particle-search-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.particle-search-input:focus {
    background: rgba(0, 0, 0, 0.4);
}

/* Options Container */
.particle-options-container {
    overflow-y: auto;
    max-height: 320px;
    padding: 0.5rem 0;
}

.particle-options-container::-webkit-scrollbar {
    width: 8px;
}

.particle-options-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

.particle-options-container::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.3);
    border-radius: 4px;
}

.particle-options-container::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.5);
}

/* Category Headers */
.particle-category {
    margin-bottom: 0.5rem;
}

.particle-category-header {
    padding: 0.5rem 0.75rem;
    color: #6366f1;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(99, 102, 241, 0.1);
    border-left: 3px solid #6366f1;
}

.particle-category-options {
    display: flex;
    flex-direction: column;
}

/* Particle Options */
.particle-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem 0.5rem 1.5rem;
    cursor: pointer;
    transition: all 0.15s ease;
    color: rgba(255, 255, 255, 0.8);
}

.particle-option:hover {
    background: rgba(99, 102, 241, 0.15);
    color: #fff;
}

.particle-option.selected {
    background: rgba(99, 102, 241, 0.25);
    color: #fff;
    font-weight: 500;
    border-left: 3px solid #6366f1;
    padding-left: calc(1.5rem - 3px);
}

.particle-option-name {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

/* ============================================
   MATERIAL DROPDOWN STYLES
   ============================================ */

.material-selector-wrapper {
    position: relative;
    z-index: 999;
}

.material-selector-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 38px;
}

.material-selector-display:hover {
    border-color: var(--accent-color);
    background: var(--hover-bg);
}

.material-preview {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.material-dropdown-arrow {
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: transform 0.2s ease;
}

.material-dropdown-menu {
    position: fixed;
    z-index: 99999;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    min-width: 320px;
    max-width: 400px;
    max-height: 400px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.material-search-input {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-bottom: 2px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
}

.material-search-input:focus {
    border-bottom-color: var(--accent-color);
}

.material-options-container {
    overflow-y: auto;
    max-height: 320px;
    padding: 0.5rem 0;
}

.material-options-container::-webkit-scrollbar {
    width: 8px;
}

.material-options-container::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.material-options-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.material-options-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.material-category {
    margin-bottom: 0.5rem;
}

.material-category-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-secondary);
    position: sticky;
    top: 0;
    z-index: 1;
}

.material-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

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

.material-option-name {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
}

/* ============================================
   INHERITED PARTICLE ATTRIBUTES SECTION
   ============================================ */

.inherited-particle-attributes {
    margin-top: 1.5rem;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    overflow: hidden;
}

.inherited-attributes-header {
    padding: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-tertiary);
    user-select: none;
    transition: background 0.2s ease;
}

.inherited-attributes-header:hover {
    background: var(--hover-bg);
}

.inherited-attributes-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.inherited-attributes-toggle {
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.inherited-attributes-toggle.expanded {
    transform: rotate(90deg);
}

.inherited-attributes-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1rem;
}

.inherited-attributes-content.expanded {
    max-height: 3000px;
    padding: 1rem;
    transition: max-height 0.5s ease-in;
}

.inherited-attribute-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-left: 3px solid var(--accent-color);
    border-radius: 4px;
}