/* style.css */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Dark Theme */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    /* Accent Colors */
    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    
    /* Text Colors */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Visualization Colors */
    --array-element: #3b82f6;
    --array-compare: #f59e0b;
    --array-swap: #ef4444;
    --array-sorted: #10b981;
    --array-pivot: #8b5cf6;
    
    /* Border and Shadow */
    --border-radius: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    
    /* Transitions */
    --transition: all 0.3s ease;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    --array-mid: #8b5cf6;      /* Purple for binary search mid */
    --array-low: #10b981;      /* Green for binary search low */
    --array-high: #ef4444;     /* Red for binary search high */
    --array-minimum: #f59e0b;  /* Yellow for selection sort minimum */
}

/* Typography */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 1.75rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

code, pre {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
}

/* Utility Classes */
.btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: var(--border-radius);
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition);
}

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

.btn-primary:hover:not(:disabled) {
    background-color: #2563eb;
    transform: translateY(-2px);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #475569;
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Header Styles */
.header {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo i {
    color: var(--accent-primary);
    font-size: 1.8rem;
}

.logo-text {
    font-size: 1.5rem;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.theme-toggle, .github-link {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    width: 2.8rem;
    height: 2.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle:hover, .github-link:hover {
    background-color: var(--bg-tertiary);
}

/* Main Layout */
.main-container {
    display: flex;
    min-height: calc(100vh - 68px); /* Subtract header height */
    max-width: 1400px;
    margin: 0 auto;
}

/* Sidebar Styles */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--bg-tertiary);
    padding: var(--spacing-md);
    overflow-y: auto;
    transition: var(--transition);
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--bg-tertiary);
}

.sidebar-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.2rem;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background-color: var(--bg-tertiary);
}

.category {
    margin-bottom: var(--spacing-md);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.category-title:hover {
    background-color: var(--bg-tertiary);
}

.category-title i {
    color: var(--accent-primary);
}

.algorithm-items {
    list-style: none;
    margin-left: var(--spacing-sm);
}

.algorithm-item {
    padding: 0.7rem;
    margin-bottom: 0.3rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.algorithm-item:hover {
    background-color: var(--bg-tertiary);
}

.algorithm-item.active {
    background-color: var(--accent-primary);
    color: white;
}

.algorithm-item i {
    font-size: 0.9rem;
}

/* Content Area */
.content-area {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
}

/* Visualization Section */
.visualization-section {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.array-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.array-size-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.array-size-control label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.array-size-control input[type="range"] {
    width: 120px;
}

.visualization-container {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    min-height: 300px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.visualization {
    width: 100%;
    height: 100%;
}

.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    gap: var(--spacing-sm);
}

.placeholder i {
    color: var(--bg-tertiary);
}

/* Control Panel */
.control-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow);
}

.controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.speed-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-left: auto;
}

.speed-control label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.speed-control input[type="range"] {
    width: 100px;
}

/* Info Panels */
.info-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.code-panel, .explanation-panel {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.panel-header {
    background-color: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--bg-secondary);
}

.panel-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.1rem;
}

.panel-content {
    padding: var(--spacing-md);
    max-height: 300px;
    overflow-y: auto;
}

/* Code Panel Specific */
#pseudoCode {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.5;
}

#pseudoCode code {
    color: var(--text-primary);
}

/* Explanation Panel Specific */
.complexity {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--bg-tertiary);
}

.complexity-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.complexity-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.complexity-value {
    font-weight: 600;
    font-size: 1rem;
    color: var(--accent-primary);
}

.explanation-content {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Range Input Styling */
input[type="range"] {
    -webkit-appearance: none;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .info-panels {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        width: 250px;
    }
}

@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--bg-tertiary);
        padding: var(--spacing-sm);
        max-height: 300px;
    }
    
    .sidebar.collapsed {
        max-height: 60px;
        overflow: hidden;
    }
    
    .sidebar-header {
        margin-bottom: var(--spacing-sm);
    }
    
    .sidebar-toggle {
        display: block;
    }
    
    .algorithms-list {
        transition: var(--transition);
    }
    
    .sidebar.collapsed .algorithms-list {
        display: none;
    }
    
    .controls {
        justify-content: center;
    }
    
    .speed-control {
        margin-left: 0;
        width: 100%;
        justify-content: center;
        margin-top: var(--spacing-sm);
    }
    
    .array-controls {
        justify-content: center;
    }
    
    .section-header {
        justify-content: center;
        text-align: center;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0 var(--spacing-sm);
    }
    
    .content-area {
        padding: var(--spacing-sm);
    }
    
    .visualization-section, 
    .control-panel,
    .code-panel,
    .explanation-panel {
        padding: var(--spacing-sm);
    }
    
    .controls {
        gap: 0.5rem;
    }
    
    .btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.85rem;
    }
}
/* style.css - ADDITIONAL STYLES */

/* Array Bar Animations */
.array-bar {
    transition: all 0.3s ease;
}

.array-bar.comparing {
    background-color: var(--array-compare) !important;
    transform: scale(1.05);
}

.array-bar.swapping {
    background-color: var(--array-swap) !important;
    transform: scale(1.1);
}

.array-bar.sorted {
    background-color: var(--array-sorted) !important;
}

.array-bar.pivot {
    background-color: var(--array-pivot) !important;
}

/* Code Panel Improvements */
#pseudoCode {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.5;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary);
    white-space: pre;
    tab-size: 2;
}

#pseudoCode div {
    font-family: 'JetBrains Mono', monospace;
    white-space: pre;
}

/* Explanation Panel Improvements */
.base-explanation {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.current-step {
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 3px solid var(--accent-primary);
}

/* Progress Indicator */
.progress-container {
    margin-top: 1rem;
    padding: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
}

.progress-bar {
    height: 6px;
    background-color: var(--accent-primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Control Panel Active States */
.controls .btn:active {
    transform: translateY(0);
}

/* Algorithm Item Active State */
.algorithm-item.active {
    background-color: var(--accent-primary);
    color: white;
}

.algorithm-item.active i {
    color: white;
}

/* Speed Control Value Display */
#speedValue {
    min-width: 60px;
    text-align: center;
    font-weight: 500;
}

/* Array Size Control */
.array-size-control span {
    min-width: 30px;
    text-align: center;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
}

/* Tooltip Styles */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 200px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    text-align: center;
    border-radius: var(--border-radius);
    padding: 0.5rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.85rem;
    box-shadow: var(--shadow-lg);
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Responsive Improvements */
@media (max-width: 768px) {
    .array-bar {
        margin: 0 0.5px;
    }
    
    .bar-label {
        font-size: 10px !important;
        bottom: -20px !important;
    }
    
    #pseudoCode {
        font-size: 0.8rem;
        padding: var(--spacing-sm);
    }
}
/* Enhanced Visualization Styles */
.array-bar {
    transition: all 0.3s ease;
    position: relative;
}

.array-bar:hover {
    transform: scale(1.05);
    z-index: 10;
}

/* Color states for different algorithm phases */
.array-bar.comparing {
    background-color: var(--array-compare) !important;
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}

.array-bar.swapping {
    background-color: var(--array-swap) !important;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

.array-bar.sorted {
    background-color: var(--array-sorted) !important;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.array-bar.current {
    background-color: var(--accent-warning) !important;
}

.array-bar.visited {
    background-color: var(--accent-primary) !important;
    opacity: 0.7;
}

.array-bar.target {
    background-color: var(--accent-secondary) !important;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.7);
}

.array-bar.found {
    background-color: var(--accent-success) !important;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.8);
    animation: pulse 1s infinite;
}

.array-bar.low {
    background-color: #10b981 !important;
}

.array-bar.high {
    background-color: #ef4444 !important;
}

.array-bar.mid {
    background-color: #8b5cf6 !important;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.7);
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Explanation panel improvements */
.current-step {
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 3px solid var(--accent-primary);
}

.progress-info {
    padding: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Control button states */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary:not(:disabled):hover {
    background-color: #2563eb;
    transform: translateY(-2px);
}

/* Speed control improvements */
.speed-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.speed-control input[type="range"] {
    width: 120px;
}

/* Index labels on array bars */
.index-label {
    font-size: 10px !important;
    color: var(--text-muted);
}

/* Responsive improvements */
@media (max-width: 768px) {
    .visualization-container {
        padding: var(--spacing-sm);
    }
    
    .array-bar {
        margin: 0 0.5px;
    }
    
    .bar-label {
        font-size: 10px !important;
        bottom: -18px !important;
    }
    
    .index-label {
        font-size: 8px !important;
        top: -16px !important;
    }
}

/* ========== CRITICAL VISUALIZATION FIXES ========== */

/* Visualization container - MUST match HTML */
#visualization {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    height: 300px;
    width: 100%;
    background-color: var(--bg-primary);
    border-radius: 8px;
    padding: 20px 10px;
    overflow: hidden;
    position: relative;
}

/* Bar element - MUST have this class */
.bar {
    background-color: var(--array-element);
    border-radius: 4px 4px 0 0;
    transition: all 0.3s ease;
    position: relative;
    margin: 0 2px;
    min-width: 10px;
}

/* Bar states */
.bar.comparing {
    background-color: var(--array-compare) !important;
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}

.bar.swapping {
    background-color: var(--array-swap) !important;
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

.bar.sorted {
    background-color: var(--array-sorted) !important;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.bar.found {
    background-color: var(--accent-success) !important;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.8);
    animation: pulse 1s infinite;
}

/* Bar labels */
.bar-label {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    font-size: 12px;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    white-space: nowrap;
}

.index-label {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 10px;
    font-family: 'JetBrains Mono', monospace;
}

/* Animation */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Placeholder when no array */
.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    gap: 1rem;
}

.placeholder i {
    color: var(--bg-tertiary);
    font-size: 3rem;
}

/* Current step display */
.current-step {
    padding: 0.75rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    margin: 1rem 0;
    border-left: 3px solid var(--accent-primary);
    line-height: 1.6;
}

.progress-info {
    padding: 0.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Responsive fixes */
@media (max-width: 768px) {
    #visualization {
        height: 250px;
        padding: 15px 5px;
    }
    
    .bar {
        margin: 0 1px;
        min-width: 8px;
    }
    
    .bar-label {
        font-size: 10px;
        bottom: -20px;
    }
    
    .index-label {
        font-size: 8px;
        top: -16px;
    }
}
/* Add special bar states */
.bar.mid {
    background-color: var(--array-mid) !important;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.7);
}

.bar.low {
    background-color: var(--array-low) !important;
}

.bar.high {
    background-color: var(--array-high) !important;
}

.bar.minimum {
    background-color: var(--array-minimum) !important;
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}

/* Animation for found element */
@keyframes found-pulse {
    0% { transform: scale(1); box-shadow: 0 0 10px var(--accent-success); }
    50% { transform: scale(1.1); box-shadow: 0 0 20px var(--accent-success); }
    100% { transform: scale(1); box-shadow: 0 0 10px var(--accent-success); }
}

.bar.found {
    animation: found-pulse 1s infinite;
}

/* ========== LINKED LIST VISUALIZATION ========== */

.linked-list-container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    padding: 40px;
    min-height: 300px;
}

.linked-list-node {
    width: 70px;
    height: 70px;
    background-color: var(--bg-secondary);
    border: 3px solid var(--accent-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--text-primary);
    position: relative;
    transition: all 0.3s ease;
}

.linked-list-node:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
}

.linked-list-node.current {
    background-color: var(--array-compare) !important;
    border-color: var(--accent-warning) !important;
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--accent-warning);
}

.linked-list-node.selected {
    background-color: var(--array-swap) !important;
    border-color: var(--accent-danger) !important;
}

.linked-list-node.new {
    background-color: var(--array-sorted) !important;
    border-color: var(--accent-success) !important;
    transform: scale(1.05);
    animation: pulse 1s infinite;
}

.linked-list-node.prev {
    background-color: var(--accent-primary) !important;
    opacity: 0.8;
}

.linked-list-pointer {
    display: flex;
    align-items: center;
    margin: 0 10px;
}

.node-position {
    position: absolute;
    top: -25px;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: 'JetBrains Mono', monospace;
}

.null-indicator {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    color: var(--text-muted);
    font-style: italic;
    margin-left: 20px;
}

/* Special animation for linked list operations */
@keyframes node-insert {
    0% { transform: scale(0); opacity: 0; }
    70% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

.linked-list-node.new {
    animation: node-insert 0.5s ease-out;
}

@keyframes pointer-highlight {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.linked-list-pointer.highlighted {
    animation: pointer-highlight 0.5s ease-in-out;
}

/* Responsive linked list */
@media (max-width: 768px) {
    .linked-list-container {
        gap: 20px;
        padding: 20px;
    }
    
    .linked-list-node {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .linked-list-pointer {
        margin: 0 5px;
    }
}
/* ========== ANIMATION SUPPORT ========== */

/* Array bars - transitions */
.bar {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: bottom center;
}

/* Highlight states with transitions */
.bar.comparing {
    background-color: var(--array-compare) !important;
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
    transition: all 0.3s ease;
}

.bar.swapping {
    background-color: var(--array-swap) !important;
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
    transition: all 0.3s ease;
}

.bar.sorted {
    background-color: var(--array-sorted) !important;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
    transition: all 0.3s ease;
}

/* Linked list nodes - transitions */
.linked-list-node {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.linked-list-node.current {
    background-color: var(--array-compare) !important;
    border-color: var(--accent-warning) !important;
    transform: scale(1.1);
    box-shadow: 0 0 20px var(--accent-warning);
    transition: all 0.3s ease;
}

.linked-list-node.selected {
    background-color: var(--array-swap) !important;
    border-color: var(--accent-danger) !important;
    transition: all 0.3s ease;
}

.linked-list-node.new {
    background-color: var(--array-sorted) !important;
    border-color: var(--accent-success) !important;
    transform: scale(1.05);
    animation: pulse 1s infinite;
    transition: all 0.3s ease;
}

/* Pointer animations */
.linked-list-pointer {
    transition: all 0.3s ease;
}

.pointer-line {
    width: 30px;
    height: 3px;
    background-color: var(--accent-primary);
    margin: 0 5px;
    transition: all 0.3s ease;
}

.pointer-arrow {
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 10px solid var(--accent-primary);
    transition: all 0.3s ease;
}

/* Pulse animation */
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}