/* CSS Variables for Theme Management */
:root {
    /* Day Theme Colors */
    --primary-red: #e50914;
    --primary-blue: #0066cc;
    --primary-black: #1a1a1a;
    --background-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent-color: #ff6b35;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --web-color: rgba(0, 102, 204, 0.1);
    
    /* Animation Variables */
    --transition-speed: 0.3s;
    --glow-intensity: 0px;
}

/* Night Theme Colors */
[data-theme="night"] {
    --primary-red: #ff1744;
    --primary-blue: #2196f3;
    --primary-black: #000000;
    --background-color: #0d1117;
    --surface-color: #161b22;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --accent-color: #ff6b35;
    --shadow-color: rgba(255, 255, 255, 0.1);
    --web-color: rgba(33, 150, 243, 0.15);
    --glow-intensity: 5px;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
    min-height: 100vh;
    position: relative;
}

/* Enhanced Spider Web Background */
.spider-web-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 80%, var(--web-color) 0%, transparent 70%),
        radial-gradient(circle at 80% 20%, var(--web-color) 0%, transparent 70%),
        radial-gradient(circle at 40% 40%, var(--web-color) 0%, transparent 70%),
        radial-gradient(circle at 60% 70%, var(--web-color) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, var(--web-color) 0%, transparent 50%);
    animation: webPulse 8s ease-in-out infinite;
    overflow: hidden;
}

@keyframes webPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Background Web Patterns */
.background-web {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.8;
    transition: opacity 0.5s ease;
}

.web-pattern-1 {
    top: 0;
    left: 0;
    animation: webFloat1 20s ease-in-out infinite;
}

.web-pattern-2 {
    top: 0;
    right: 0;
    animation: webFloat2 25s ease-in-out infinite;
}

@keyframes webFloat1 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(10px, -10px) rotate(1deg); }
    50% { transform: translate(-5px, 5px) rotate(-0.5deg); }
    75% { transform: translate(5px, 10px) rotate(0.5deg); }
}

@keyframes webFloat2 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-10px, 5px) rotate(-1deg); }
    66% { transform: translate(5px, -5px) rotate(0.5deg); }
}

.spiderweb-svg {
    width: 100%;
    height: 100%;
    color: var(--text-secondary);
    filter: drop-shadow(0 0 4px var(--web-color));
    transition: all 0.5s ease;
}

/* Corner Spider Graphics */
.corner-spider {
    position: absolute;
    width: 150px;
    height: 150px;
    pointer-events: none;
    opacity: 0.7;
    transition: opacity 0.5s ease;
}

.corner-spider-tl {
    top: 50px;
    left: 50px;
    animation: spiderFloat 15s ease-in-out infinite;
}

.corner-spider-tr {
    top: 50px;
    right: 50px;
    animation: spiderFloat 18s ease-in-out infinite reverse;
}

.corner-spider-bl {
    bottom: 50px;
    left: 50px;
    animation: spiderFloat 22s ease-in-out infinite;
}

.corner-spider-br {
    bottom: 50px;
    right: 50px;
    animation: spiderFloat 16s ease-in-out infinite reverse;
}

@keyframes spiderFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(5px, -3px) rotate(2deg); }
    50% { transform: translate(-3px, 5px) rotate(-1deg); }
    75% { transform: translate(3px, 2px) rotate(1deg); }
}

.spider-silhouette {
    width: 100%;
    height: 100%;
    transition: all 0.5s ease;
}

/* Floating Web Particles */
.web-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-red);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 12s linear infinite;
}

.particle-1 {
    left: 10%;
    animation-delay: 0s;
    animation-duration: 15s;
}

.particle-2 {
    left: 25%;
    animation-delay: 2s;
    animation-duration: 18s;
}

.particle-3 {
    left: 40%;
    animation-delay: 4s;
    animation-duration: 12s;
}

.particle-4 {
    left: 60%;
    animation-delay: 6s;
    animation-duration: 20s;
}

.particle-5 {
    left: 75%;
    animation-delay: 8s;
    animation-duration: 14s;
}

.particle-6 {
    left: 90%;
    animation-delay: 10s;
    animation-duration: 16s;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
        transform: scale(1);
    }
    90% {
        opacity: 0.1;
        transform: scale(1);
    }
    100% {
        transform: translateY(-100px) scale(0);
        opacity: 0;
    }
}

/* Night Mode Enhancements */
[data-theme="night"] .background-web {
    opacity: 0.9;
}

[data-theme="night"] .spiderweb-svg {
    filter: drop-shadow(0 0 8px var(--primary-blue)) drop-shadow(0 0 15px var(--primary-red));
}

[data-theme="night"] .corner-spider {
    opacity: 0.8;
    filter: drop-shadow(0 0 5px var(--primary-blue));
}

[data-theme="night"] .particle {
    background: var(--primary-blue);
    box-shadow: 0 0 8px var(--primary-blue);
}

[data-theme="night"] .spider-web-bg {
    background: 
        radial-gradient(circle at 20% 80%, rgba(33, 150, 243, 0.2) 0%, transparent 70%),
        radial-gradient(circle at 80% 20%, rgba(229, 9, 20, 0.15) 0%, transparent 70%),
        radial-gradient(circle at 40% 40%, rgba(33, 150, 243, 0.1) 0%, transparent 70%),
        radial-gradient(circle at 60% 70%, rgba(229, 9, 20, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(33, 150, 243, 0.1) 0%, transparent 50%);
}

/* Header Styles */
.header {
    background: var(--surface-color);
    box-shadow: 0 2px 20px var(--shadow-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    transition: all var(--transition-speed);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.spiderman-logo {
    width: 60px;
    height: 60px;
    cursor: pointer;
    transition: transform var(--transition-speed);
    position: relative;
}

.spiderman-logo:hover {
    transform: scale(1.05) rotate(3deg);
    animation: webShoot 0.5s ease-in-out;
}

.spiderman-logo:active {
    animation: webSlingShoot 0.3s ease-out;
}

@keyframes webShoot {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(5deg); }
    100% { transform: scale(1.05) rotate(3deg); }
}

@keyframes webSlingShoot {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.15) rotate(-5deg); }
    100% { transform: scale(1.05) rotate(3deg); }
}

/* Web Sling Animation */
.web-sling-lines .web-line-1,
.web-sling-lines .web-line-2 {
    transition: opacity 0.3s ease;
    filter: drop-shadow(0 0 2px #fff);
}

.spiderman-logo:hover .web-line-1,
.spiderman-logo:hover .web-line-2 {
    opacity: 1;
    animation: webSlingExtend 0.5s ease-out;
}

@keyframes webSlingExtend {
    0% { 
        opacity: 0;
        stroke-dasharray: 0, 100;
    }
    50% {
        opacity: 0.8;
        stroke-dasharray: 50, 50;
    }
    100% { 
        opacity: 1;
        stroke-dasharray: 100, 0;
    }
}

.web-anchor-1,
.web-anchor-2 {
    transition: opacity 0.3s ease;
}

.spiderman-logo:hover .web-anchor-1,
.spiderman-logo:hover .web-anchor-2 {
    opacity: 1;
    animation: anchorGlow 0.5s ease-out;
}

@keyframes anchorGlow {
    0% { opacity: 0; transform: scale(0); }
    50% { opacity: 1; transform: scale(1.5); }
    100% { opacity: 1; transform: scale(1); }
}

/* Logo Entrance Animation */
.spiderman-logo {
    animation: logoEntrance 1s ease-out;
}

@keyframes logoEntrance {
    0% { 
        transform: scale(0) rotate(-180deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.2) rotate(-90deg);
        opacity: 0.8;
    }
    100% { 
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

.logo-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 var(--glow-intensity) var(--primary-red));
    transition: filter var(--transition-speed);
}

.logo-text {
    font-family: 'Orbitron', monospace;
    font-size: 1.8rem;
    font-weight: 900;
    background: linear-gradient(45deg, var(--primary-red), var(--primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 10px var(--primary-red);
    animation: logoGlow 2s ease-in-out infinite alternate;
}

@keyframes logoGlow {
    from { text-shadow: 0 0 10px var(--primary-red); }
    to { text-shadow: 0 0 20px var(--primary-red), 0 0 30px var(--primary-blue); }
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 0.5rem;
}

.nav-tab {
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: 25px;
    cursor: pointer;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

.nav-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--primary-red), transparent);
    transition: left 0.5s;
}

.nav-tab:hover::before {
    left: 100%;
}

.nav-tab:hover {
    color: var(--primary-red);
    background: rgba(229, 9, 20, 0.05);
    transform: translateY(-1px);
}

.nav-tab.active {
    background: linear-gradient(45deg, var(--primary-red), var(--primary-blue));
    color: white;
    box-shadow: 0 4px 15px var(--shadow-color);
}

/* Theme Toggle */
.theme-toggle {
    background: var(--surface-color);
    border: 2px solid var(--primary-red);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    transform: rotate(180deg) scale(1.05);
    box-shadow: 0 0 10px var(--primary-red);
}

.toggle-icon {
    font-size: 1.5rem;
    transition: transform var(--transition-speed);
}

/* Main Content */
.main-content {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Visualizer Styles */
.visualizer-container {
    background: var(--surface-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

/* Controls Watermark */
.controls-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    opacity: 0.1;
    pointer-events: none;
    z-index: 0;
    animation: watermarkPulse 8s ease-in-out infinite;
}

@keyframes watermarkPulse {
    0%, 100% { opacity: 0.1; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.15; transform: translate(-50%, -50%) scale(1.05); }
}

.watermark-svg {
    width: 100%;
    height: 100%;
    color: var(--primary-red);
    transition: all 0.5s ease;
}

[data-theme="night"] .controls-watermark {
    opacity: 0.15;
}

[data-theme="night"] .watermark-svg {
    color: var(--primary-blue);
    filter: drop-shadow(0 0 10px var(--primary-blue));
}

.controls-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(229, 9, 20, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(229, 9, 20, 0.1);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.slider {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--text-secondary);
    outline: none;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-red), var(--primary-blue));
    cursor: pointer;
    box-shadow: 0 2px 10px var(--shadow-color);
    transition: all var(--transition-speed);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 15px var(--primary-red);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--primary-red), var(--primary-blue));
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 10px var(--shadow-color);
}

.algorithm-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    grid-column: 1 / -1;
}

.algo-btn {
    padding: 0.75rem 1rem;
    border: 2px solid var(--primary-red);
    background: transparent;
    color: var(--primary-red);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

.algo-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-red);
    transition: left var(--transition-speed);
    z-index: -1;
}

.algo-btn:hover::before {
    left: 0;
}

.algo-btn:hover {
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px var(--shadow-color);
}

.algo-btn.selected {
    background: var(--primary-red);
    color: white;
    box-shadow: 0 0 20px var(--primary-red);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    grid-column: 1 / -1;
    justify-content: center;
    flex-wrap: wrap;
}

.action-btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

.generate-btn {
    background: linear-gradient(45deg, var(--primary-blue), var(--primary-red));
    color: white;
}

.sort-btn {
    background: linear-gradient(45deg, var(--primary-red), var(--accent-color));
    color: white;
}


.action-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.action-btn:active:not(:disabled) {
    transform: translateY(-1px);
}

.action-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.action-btn:focus {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Array Visualization */
.array-container {
    background: var(--background-color);
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    min-height: 300px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    border: 2px solid rgba(229, 9, 20, 0.1);
    position: relative;
    overflow: hidden;
}

.array-bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 250px;
    width: 100%;
    justify-content: center;
}

.array-bar {
    background: linear-gradient(to top, var(--primary-red), var(--primary-blue));
    border-radius: 3px 3px 0 0;
    transition: all 0.3s ease;
    position: relative;
    min-width: 12px;
    box-shadow: 0 2px 5px var(--shadow-color);
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.array-bar.comparing {
    background: linear-gradient(to top, var(--accent-color), #ff8800) !important;
    animation: pulse 0.5s ease-in-out infinite alternate;
    box-shadow: 0 0 10px var(--accent-color) !important;
    border: 1px solid rgba(255, 255, 255, 0.8) !important;
    z-index: 10;
}

.array-bar.swapping {
    background: linear-gradient(to top, #ff4444, #cc0000) !important;
    animation: shake 0.3s ease-in-out;
    box-shadow: 0 0 10px #ff4444 !important;
    border: 1px solid rgba(255, 255, 255, 0.8) !important;
    z-index: 10;
}

.array-bar.sorted {
    background: linear-gradient(to top, #00ff88, #00cc66) !important;
    animation: glow 0.5s ease-in-out;
    box-shadow: 0 0 10px #00ff88 !important;
    border: 1px solid rgba(255, 255, 255, 0.8) !important;
    z-index: 5;
}

.array-bar.pivot {
    background: linear-gradient(to top, #ff69b4, #ff1493) !important;
    box-shadow: 0 0 10px #ff69b4 !important;
    border: 1px solid rgba(255, 255, 255, 0.8) !important;
    z-index: 10;
}

.array-bar.minimum {
    background: linear-gradient(to top, #ffff00, #ffd700) !important;
    box-shadow: 0 0 10px #ffff00 !important;
    border: 1px solid rgba(0, 0, 0, 0.8) !important;
    z-index: 10;
}

@keyframes pulse {
    from { transform: scaleY(1); }
    to { transform: scaleY(1.05); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

@keyframes glow {
    0% { box-shadow: 0 0 5px #00ff88; }
    100% { box-shadow: 0 0 20px #00ff88, 0 0 30px #00ff88; }
}

/* Algorithm Info */
.algorithm-info {
    background: rgba(0, 102, 204, 0.05);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid rgba(0, 102, 204, 0.1);
}

.algorithm-info h3 {
    font-family: 'Orbitron', monospace;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.complexity-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.complexity-info span {
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--surface-color);
    border-radius: 20px;
    border: 1px solid var(--primary-blue);
    color: var(--text-primary);
}

/* About Page Styles */
.about-container {
    background: var(--surface-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px var(--shadow-color);
}

/* Author Info */
.author-info {
    background: var(--background-color);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 2px solid var(--primary-red);
    text-align: center;
}

.author-info h3 {
    font-family: 'Orbitron', monospace;
    color: var(--primary-red);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.author-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.5rem;
    text-align: left;
}

.author-details p {
    margin: 0.3rem 0;
    color: var(--text-primary);
    font-size: 1rem;
}

.author-details strong {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Visualization Info */
.visualization-info {
    margin-top: 1rem;
    text-align: center;
    padding: 1rem;
    background: var(--background-color);
    border-radius: 10px;
    border: 1px solid var(--primary-blue);
}

.visualization-info span {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 1.1rem;
}

/* Comparison Table */
.comparison-table-container {
    margin: 3rem 0;
}

.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 0.8fr 0.8fr 1fr;
    gap: 1px;
    background: var(--text-secondary);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.table-header {
    background: var(--primary-red);
    color: white;
    font-weight: 700;
}

.table-row {
    background: var(--surface-color);
}

.table-row:nth-child(even) {
    background: var(--background-color);
}

.table-cell {
    padding: 1rem 0.5rem;
    text-align: center;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.table-cell.header {
    font-weight: 700;
    color: white;
}

.complexity-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
}

.complexity.o-nlogn .complexity-badge {
    background: #00ff88;
    color: #000;
}

.complexity.o-n .complexity-badge {
    background: #00cc66;
    color: white;
}

.complexity.o-n2 .complexity-badge {
    background: #ffaa00;
    color: #000;
}

.complexity.o-logn .complexity-badge {
    background: #0088cc;
    color: white;
}

.complexity.o-1 .complexity-badge {
    background: #0066cc;
    color: white;
}

.status-icon {
    font-size: 1.2rem;
    font-weight: bold;
    padding: 0.2rem 0.5rem;
    border-radius: 50%;
    display: inline-block;
    min-width: 25px;
    height: 25px;
    line-height: 20px;
}

.stable.yes .status-icon,
.in-place.yes .status-icon {
    background: #00ff88;
    color: #000;
}

.stable.no .status-icon,
.in-place.no .status-icon {
    background: #ff4444;
    color: white;
}

.in-place.partial .status-icon {
    background: #ffaa00;
    color: #000;
}

/* Mini Visualizations */
.mini-visualizations {
    margin: 3rem 0;
}

.mini-viz-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.mini-viz {
    background: var(--background-color);
    border-radius: 15px;
    padding: 1.5rem;
    border: 2px solid rgba(229, 9, 20, 0.1);
    transition: all var(--transition-speed);
    text-align: center;
}

.mini-viz:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px var(--shadow-color);
    border-color: var(--primary-red);
}

.mini-viz h4 {
    font-family: 'Orbitron', monospace;
    color: var(--primary-red);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.mini-array {
    height: 100px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 2px;
    margin: 1rem 0;
    background: var(--surface-color);
    border-radius: 10px;
    padding: 0.5rem;
}

.mini-bar {
    background: linear-gradient(to top, var(--primary-red), var(--primary-blue));
    border-radius: 2px 2px 0 0;
    min-width: 6px;
    transition: all 0.3s ease;
}

.mini-bar.active {
    background: var(--accent-color);
    animation: miniPulse 0.5s ease-in-out infinite alternate;
}

@keyframes miniPulse {
    from { transform: scaleY(1); }
    to { transform: scaleY(1.1); }
}

.mini-play-btn {
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: 20px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-speed);
}

.mini-play-btn:hover {
    background: var(--primary-red);
    transform: scale(1.02);
}

.mini-play-btn:focus {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

.about-container h2 {
    font-family: 'Orbitron', monospace;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-red);
    font-size: 2.5rem;
}

.algorithm-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.algorithm-card {
    background: var(--background-color);
    border-radius: 15px;
    padding: 1.5rem;
    border: 2px solid rgba(229, 9, 20, 0.1);
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

/* Card Spider Motifs */
.card-spider-motif {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 40px;
    height: 40px;
    opacity: 0.3;
    pointer-events: none;
    z-index: 1;
    transition: all var(--transition-speed);
}

.motif-svg {
    width: 100%;
    height: 100%;
    color: var(--primary-red);
    transition: all var(--transition-speed);
}

.algorithm-card:hover .card-spider-motif {
    opacity: 0.5;
    transform: scale(1.05) rotate(5deg);
}

.algorithm-card:hover .motif-svg {
    color: var(--primary-blue);
    filter: drop-shadow(0 0 3px var(--primary-blue));
}

[data-theme="night"] .card-spider-motif {
    opacity: 0.4;
}

[data-theme="night"] .motif-svg {
    color: var(--primary-blue);
}

[data-theme="night"] .algorithm-card:hover .motif-svg {
    filter: drop-shadow(0 0 5px var(--primary-blue));
}

.algorithm-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-red), var(--primary-blue));
}

.algorithm-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px var(--shadow-color);
    border-color: var(--primary-red);
}

.algorithm-card h3 {
    font-family: 'Orbitron', monospace;
    color: var(--primary-red);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.algorithm-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.complexity-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge.time { background: rgba(229, 9, 20, 0.1); color: var(--primary-red); }
.badge.space { background: rgba(0, 102, 204, 0.1); color: var(--primary-blue); }
.badge.stable { background: rgba(255, 107, 53, 0.1); color: var(--accent-color); }

.complexity-legend {
    background: var(--background-color);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(0, 102, 204, 0.1);
}

.complexity-legend h3 {
    font-family: 'Orbitron', monospace;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    text-align: center;
}

.legend-items {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 50%;
}

.legend-color.excellent { background: #00ff88; }
.legend-color.good { background: #00cc66; }
.legend-color.fair { background: #ffaa00; }
.legend-color.poor { background: #ff4444; }

/* Watermark */
.watermark {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.spidey-link {
    color: var(--primary-red);
    text-decoration: none;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    background: var(--surface-color);
    border-radius: 20px;
    border: 3px solid var(--primary-red);
    transition: all var(--transition-speed);
    display: block;
    text-shadow: 0 0 5px var(--primary-red);
    box-shadow: 0 2px 10px var(--shadow-color);
    position: relative;
    z-index: 10;
}

.spidey-link:hover {
    color: white;
    background: var(--primary-red);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 3px 15px var(--primary-red);
    text-shadow: none;
}

.spidey-link:focus {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
    color: white;
    background: var(--primary-red);
}

/* Enhanced watermark visibility for night mode */
[data-theme="night"] .spidey-link {
    color: var(--primary-blue);
    border-color: var(--primary-blue);
    text-shadow: 0 0 5px var(--primary-blue);
    box-shadow: 0 2px 10px var(--primary-blue);
}

[data-theme="night"] .spidey-link:hover {
    background: var(--primary-blue);
    /* Reduced box-shadow intensity for less glow */
    box-shadow: 0 2px 8px var(--primary-blue);
    /* Optionally, you can also reduce text-shadow or remove it */
    text-shadow: none;
}

[data-theme="night"] .spidey-link:focus {
    background: var(--primary-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .logo-text {
        font-size: 1.3rem;
    }
    
    .nav-tabs {
        flex-direction: column;
        width: 100%;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .visualizer-container {
        padding: 1rem;
    }
    
    .controls-panel {
        grid-template-columns: 1fr;
    }
    
    .algorithm-buttons {
        flex-direction: column;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .complexity-info {
        flex-direction: column;
        gap: 1rem;
    }
    
    .legend-items {
        flex-direction: column;
        gap: 1rem;
    }
    
    .watermark {
        bottom: 10px;
        right: 10px;
    }
}

@media (max-width: 480px) {
    .logo-container {
        flex-direction: column;
        text-align: center;
    }
    
    .logo-text {
        font-size: 1.1rem;
    }
    
    .spiderman-logo {
        width: 50px;
        height: 50px;
    }
    
    .about-container h2 {
        font-size: 2rem;
    }
    
    .algorithm-cards {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--text-secondary);
    border-radius: 50%;
    border-top-color: var(--primary-red);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Page Load Animations */
body {
    animation: pageLoad 1s ease-out;
}

@keyframes pageLoad {
    0% { 
        opacity: 0;
        filter: blur(5px);
    }
    100% { 
        opacity: 1;
        filter: blur(0);
    }
}

/* Web Unveil Animation */
.spider-web-bg {
    animation: webUnveil 2s ease-out;
}

@keyframes webUnveil {
    0% { 
        opacity: 0;
        transform: scale(0.8);
        filter: blur(10px);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.05);
        filter: blur(5px);
    }
    100% { 
        opacity: 1;
        transform: scale(1);
        filter: blur(0);
    }
}

/* Staggered Content Animation */
.header {
    animation: slideInDown 0.8s ease-out;
}

.main-content {
    animation: slideInUp 1s ease-out;
}

.tab-content {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes slideInDown {
    from { 
        opacity: 0;
        transform: translateY(-50px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from { 
        opacity: 0;
        transform: translateY(50px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* Interactive Parallax Effects */
.spider-web-bg {
    will-change: transform;
}

.background-web {
    will-change: transform, opacity;
}

.corner-spider {
    will-change: transform;
}

/* Enhanced Hover Effects */
.controls-panel:hover .controls-watermark {
    animation-play-state: paused;
    opacity: 0.2;
    transform: translate(-50%, -50%) scale(1.1);
}

/* Performance Optimizations */
.spiderweb-svg,
.spider-silhouette,
.motif-svg,
.watermark-svg {
    will-change: transform, opacity;
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    .spider-web-bg,
    .background-web,
    .corner-spider,
    .particle,
    .spiderman-logo,
    .logo-text,
    .controls-watermark {
        animation: none !important;
        transition: none !important;
    }
    
    .spiderman-logo:hover,
    .algorithm-card:hover .card-spider-motif {
        transform: none !important;
    }
}

/* Utility Classes */
.hidden { display: none !important; }
.fade-in { animation: fadeIn 0.5s ease-in-out; }
.slide-up { animation: slideUp 0.5s ease-in-out; }

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

.spidey-watermark-message {
    margin-top: 2rem;
    padding: 1.2rem 1rem 1.5rem 1rem;
    border-top: 3px solid var(--primary-red);
    text-align: center;
    font-family: 'Orbitron', monospace;
    font-size: 1.1rem;
    color: var(--primary-red);
    background: var(--surface-color);
    border-radius: 0 0 15px 15px;
    box-shadow: 0 2px 10px var(--shadow-color);
    opacity: 0.95;
}

.spidey-watermark-message em {
    color: var(--primary-blue);
    font-style: italic;
    font-size: 1rem;
    display: block;
    margin-top: 0.5rem;
}