@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #131829;
    --bg-card: rgba(20, 25, 45, 0.6);
    --accent-purple: #a78bfa;
    --accent-blue: #60a5fa;
    --accent-cyan: #22d3ee;
    --accent-pink: #f472b6;
    --accent-green: #34d399;
    --accent-orange: #fb923c;
    --accent-red: #f87171;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.1);
    --glow-purple: rgba(167, 139, 250, 0.3);
    --glow-blue: rgba(96, 165, 250, 0.3);
    --glow-cyan: rgba(34, 211, 238, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0f1420 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 30%, rgba(167, 139, 250, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(96, 165, 250, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(34, 211, 238, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1800px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Header Styles */
.header {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeInDown 0.8s ease-out;
}

.title {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan), var(--accent-pink));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    animation: gradientShift 4s ease infinite;
    text-shadow: 0 0 40px var(--glow-purple);
}

.supernet-info {
    display: inline-block;
    background: rgba(167, 139, 250, 0.1);
    border: 2px solid var(--accent-purple);
    border-radius: 50px;
    padding: 12px 30px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    box-shadow: 0 0 30px var(--glow-purple);
    animation: pulse 3s ease-in-out infinite;
}

.supernet-label {
    color: var(--text-muted);
    margin-right: 10px;
    font-size: 0.9rem;
}

.supernet-value {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent-purple);
    font-weight: 600;
    font-size: 1.1rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-purple);
    box-shadow: 0 10px 40px var(--glow-purple);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Tree Container */
.tree-container {
    animation: fadeIn 1s ease-out 0.3s both;
}

.root-node {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
    animation: scaleIn 0.6s ease-out 0.5s both;
}

.supernet-node {
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.2), rgba(96, 165, 250, 0.2));
    border: 2px solid var(--accent-purple);
    border-radius: 20px;
    padding: 30px 50px;
    text-align: center;
    backdrop-filter: blur(15px);
    box-shadow: 0 0 50px var(--glow-purple), 0 10px 30px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.supernet-node::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    animation: shimmer 3s infinite;
}

.node-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-purple);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.node-subnet {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.node-range {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Network Section */
.network-section {
    margin-bottom: 60px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    border-radius: 2px;
}

/* Networks Grid */
.networks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
    animation: fadeInUp 0.8s ease-out;
}

.network-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    animation: slideInUp 0.6s ease-out both;
}

.network-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.05), rgba(96, 165, 250, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.network-card:hover::before {
    opacity: 1;
}

.network-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* Network Card Sizes */
.network-card.largest {
    border-color: var(--accent-red);
}

.network-card.largest:hover {
    box-shadow: 0 20px 60px rgba(248, 113, 113, 0.3);
}

.network-card.large {
    border-color: var(--accent-orange);
}

.network-card.large:hover {
    box-shadow: 0 20px 60px rgba(251, 146, 60, 0.3);
}

.network-card.medium {
    border-color: var(--accent-cyan);
}

.network-card.medium:hover {
    box-shadow: 0 20px 60px rgba(34, 211, 238, 0.3);
}

.network-card.small {
    border-color: var(--accent-blue);
}

.network-card.small:hover {
    box-shadow: 0 20px 60px rgba(96, 165, 250, 0.3);
}

.network-card.tiny {
    border-color: var(--accent-green);
}

.network-card.tiny:hover {
    box-shadow: 0 20px 60px rgba(52, 211, 153, 0.3);
}

.network-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.network-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.network-prefix {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 8px;
    background: rgba(167, 139, 250, 0.2);
    color: var(--accent-purple);
}

.network-body {
    padding: 20px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.05);
    transition: all 0.2s ease;
}

.info-row:last-child {
    border-bottom: none;
}

.info-row:hover {
    background: rgba(167, 139, 250, 0.05);
    padding-left: 10px;
    padding-right: 10px;
    margin-left: -10px;
    margin-right: -10px;
    border-radius: 8px;
}

.info-row .label {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-row .value {
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Links Grid */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    animation: fadeInUp 0.8s ease-out;
}

.link-card {
    background: var(--bg-card);
    border: 1px solid rgba(96, 165, 250, 0.3);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    animation: slideInUp 0.5s ease-out both;
}

.link-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 15px 40px rgba(96, 165, 250, 0.2);
}

.link-header {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.2), rgba(34, 211, 238, 0.2));
    padding: 12px 16px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--accent-blue);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.link-body {
    padding: 16px;
}

.link-info {
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 12px;
    text-align: center;
    font-weight: 600;
}

.link-routers {
    display: flex;
    justify-content: space-around;
    gap: 10px;
}

.router {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(34, 211, 238, 0.1);
    color: var(--accent-cyan);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    border: 1px solid rgba(34, 211, 238, 0.2);
    transition: all 0.2s ease;
}

.router:hover {
    background: rgba(34, 211, 238, 0.2);
    transform: scale(1.05);
}

/* LAN Grid */
.lan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    animation: fadeInUp 0.8s ease-out;
}

.lan-card {
    background: var(--bg-card);
    border: 1px solid rgba(52, 211, 153, 0.3);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    animation: slideInUp 0.5s ease-out both;
}

.lan-card:hover {
    transform: translateY(-5px) rotate(1deg);
    border-color: var(--accent-green);
    box-shadow: 0 15px 40px rgba(52, 211, 153, 0.2);
}

.lan-header {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.2), rgba(34, 211, 238, 0.2));
    padding: 12px 16px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--accent-green);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.lan-body {
    padding: 16px;
    text-align: center;
}

.lan-subnet {
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.lan-range {
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.lan-hosts {
    background: rgba(52, 211, 153, 0.1);
    color: var(--accent-green);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    display: inline-block;
    border: 1px solid rgba(52, 211, 153, 0.2);
}

/* Footer */
.footer {
    margin-top: 80px;
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-content p {
    color: var(--text-muted);
    margin: 5px 0;
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 30px var(--glow-purple);
    }

    50% {
        box-shadow: 0 0 50px var(--glow-purple);
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }

    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

/* Stagger animation delays for cards */
.network-card:nth-child(1) {
    animation-delay: 0.1s;
}

.network-card:nth-child(2) {
    animation-delay: 0.15s;
}

.network-card:nth-child(3) {
    animation-delay: 0.2s;
}

.network-card:nth-child(4) {
    animation-delay: 0.25s;
}

.network-card:nth-child(5) {
    animation-delay: 0.3s;
}

.network-card:nth-child(6) {
    animation-delay: 0.35s;
}

.network-card:nth-child(7) {
    animation-delay: 0.4s;
}

.network-card:nth-child(8) {
    animation-delay: 0.45s;
}

.network-card:nth-child(9) {
    animation-delay: 0.5s;
}

.network-card:nth-child(10) {
    animation-delay: 0.55s;
}

.network-card:nth-child(11) {
    animation-delay: 0.6s;
}

.network-card:nth-child(12) {
    animation-delay: 0.65s;
}

.network-card:nth-child(13) {
    animation-delay: 0.7s;
}

.link-card:nth-child(n) {
    animation-delay: calc(0.05s * var(--i, 1));
}

.lan-card:nth-child(n) {
    animation-delay: calc(0.05s * var(--i, 1));
}

/* Responsive Design */
@media (max-width: 768px) {
    .title {
        font-size: 2.5rem;
    }

    .networks-grid {
        grid-template-columns: 1fr;
    }

    .links-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .lan-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-purple), var(--accent-blue));
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
}

/* Search Container */
.search-container {
    position: relative;
    max-width: 600px;
    margin: 30px auto 20px;
}

#networkSearch {
    width: 100%;
    padding: 16px 50px 16px 20px;
    background: rgba(20, 25, 45, 0.6);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

#networkSearch:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.3);
}

#networkSearch::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    pointer-events: none;
}

/* Filter Container */
.filter-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    background: rgba(20, 25, 45, 0.6);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    font-family: 'Inter', sans-serif;
}

.filter-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(34, 211, 238, 0.2);
}

.filter-btn.active {
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.2), rgba(96, 165, 250, 0.2));
    border-color: var(--accent-purple);
    color: var(--accent-purple);
    box-shadow: 0 5px 20px var(--glow-purple);
}

/* Custom Tooltip */
.custom-tooltip {
    position: absolute;
    background: rgba(10, 14, 39, 0.95);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.85rem;
    pointer-events: none;
    z-index: 1000;
    border: 1px solid var(--accent-cyan);
    box-shadow: 0 5px 20px rgba(34, 211, 238, 0.3);
    backdrop-filter: blur(10px);
    animation: tooltipFadeIn 0.2s ease-out;
}

@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Copy Notification */
.copy-notification {
    position: fixed;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 1001;
    box-shadow: 0 5px 20px rgba(52, 211, 153, 0.4);
    animation: slideInDown 0.3s ease-out;
    pointer-events: none;
}

.copy-notification.fade-out {
    animation: fadeOut 0.3s ease-out forwards;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(-10px);
    }
}

/* Ripple Effect */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(167, 139, 250, 0.4);
    width: 20px;
    height: 20px;
    animation: rippleEffect 0.6s ease-out;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(20);
        opacity: 0;
    }
}

/* Particle Effect */
.particle {
    position: fixed;
    width: 4px;
    height: 4px;
    background: var(--accent-cyan);
    border-radius: 50%;
    pointer-events: none;
    z-index: 999;
    animation: particleFloat 1s ease-out forwards;
}

@keyframes particleFloat {
    to {
        transform: translateY(-100px) scale(0);
        opacity: 0;
    }
}

/* Expanded Network Card State */
.network-card.expanded {
    grid-column: span 2;
    transform: scale(1.05);
    z-index: 10;
}

@media (max-width: 768px) {
    .network-card.expanded {
        grid-column: span 1;
    }

    .filter-container {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Statistics Dashboard */
.statistics-dashboard {
    margin: 60px 0;
    animation: fadeInUp 0.8s ease-out;
}

.dashboard-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 25px;
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.chart-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan), var(--accent-pink));
    background-size: 200% 100%;
    animation: gradientSlide 3s ease infinite;
}

@keyframes gradientSlide {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.chart-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-purple);
    box-shadow: 0 15px 50px rgba(167, 139, 250, 0.2);
}

.chart-header {
    margin-bottom: 20px;
}

.chart-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.chart-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

.chart-container canvas {
    max-height: 300px;
}

/* Responsive Charts */
@media (max-width: 1200px) {
    .charts-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

@media (max-width: 768px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-title {
        font-size: 2rem;
    }

    .chart-container {
        height: 250px;
    }
}

/* Image Gallery Section */
.image-gallery-section {
    margin: 80px 0;
    animation: fadeInUp 0.8s ease-out;
}

.gallery-main-title {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 60px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink), var(--accent-cyan));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
}

.gallery-category {
    margin-bottom: 80px;
    animation: slideInFromLeft 0.8s ease-out both;
}

.gallery-category:nth-child(even) {
    animation: slideInFromRight 0.8s ease-out both;
}

.gallery-category-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--accent-purple);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.gallery-category-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
    border-radius: 2px;
}

.gallery-subcategory-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 40px 0 20px 0;
    color: var(--accent-cyan);
    padding-left: 20px;
    border-left: 4px solid var(--accent-cyan);
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.image-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: slideInUp 0.6s ease-out both;
    position: relative;
    cursor: pointer;
}

.image-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.1), rgba(96, 165, 250, 0.1));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
    pointer-events: none;
}

.image-card:hover::before {
    opacity: 1;
}

.image-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--accent-purple);
    box-shadow: 0 20px 60px rgba(167, 139, 250, 0.3);
}

.image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 75%;
    overflow: hidden;
    background: rgba(20, 25, 45, 0.5);
}

.image-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.image-card:hover .image-wrapper img {
    transform: scale(1.05);
}

.image-caption {
    padding: 16px 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.03);
    border-top: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.image-card:hover .image-caption {
    color: var(--accent-purple);
    background: rgba(167, 139, 250, 0.1);
}

/* Staggered animation delays for image cards */
.image-card:nth-child(1) {
    animation-delay: 0.1s;
}

.image-card:nth-child(2) {
    animation-delay: 0.15s;
}

.image-card:nth-child(3) {
    animation-delay: 0.2s;
}

.image-card:nth-child(4) {
    animation-delay: 0.25s;
}

.image-card:nth-child(5) {
    animation-delay: 0.3s;
}

.image-card:nth-child(6) {
    animation-delay: 0.35s;
}

.image-card:nth-child(7) {
    animation-delay: 0.4s;
}

.image-card:nth-child(8) {
    animation-delay: 0.45s;
}

.image-card:nth-child(9) {
    animation-delay: 0.5s;
}

.image-card:nth-child(10) {
    animation-delay: 0.55s;
}

.image-card:nth-child(n+11) {
    animation-delay: calc(0.6s + (var(--i, 0) * 0.05s));
}

/* Sliding animations */
@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Image modal for full-size viewing */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 39, 0.95);
    z-index: 10000;
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease-out;
    cursor: pointer;
}

.image-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-modal-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
    animation: scaleIn 0.3s ease-out;
}

.image-modal-content img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
}

.image-modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
    background: rgba(167, 139, 250, 0.2);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--accent-purple);
}

.image-modal-close:hover {
    color: var(--accent-purple);
    background: rgba(167, 139, 250, 0.3);
}

/* Responsive design for image gallery */
@media (max-width: 1200px) {
    .image-gallery {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .gallery-main-title {
        font-size: 2rem;
    }

    .gallery-category-title {
        font-size: 1.8rem;
    }

    .gallery-subcategory-title {
        font-size: 1.3rem;
    }

    .image-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .image-wrapper {
        padding-top: 60%;
    }
}

/* Mermaid VLSM Tree Section */
.mermaid-section {
    margin: 80px 0;
    animation: fadeInUp 0.8s ease-out;
}

.mermaid-section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan), var(--accent-pink));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
}

.mermaid-section-description {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.mermaid-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: auto;
    min-height: 600px;
    max-height: 90vh;
    margin-bottom: 30px;
}

.mermaid-container::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

.mermaid-container::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 6px;
}

.mermaid-container::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-purple), var(--accent-blue));
    border-radius: 6px;
}

.mermaid-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
}

/* Mermaid diagram styling */
.mermaid {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 500px;
    background: transparent;
}

/* Custom Mermaid node styling */
.mermaid svg {
    max-width: 100%;
    height: auto;
}

/* Mermaid controls */
.mermaid-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.mermaid-btn {
    padding: 12px 24px;
    background: rgba(20, 25, 45, 0.6);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    font-family: 'Inter', sans-serif;
    user-select: none;
}

.mermaid-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(34, 211, 238, 0.2);
    background: rgba(34, 211, 238, 0.1);
}

.mermaid-btn:active {
    transform: translateY(0);
}

/* Responsive Mermaid */
@media (max-width: 768px) {
    .mermaid-section-title {
        font-size: 2rem;
    }

    .mermaid-section-description {
        font-size: 1rem;
        padding: 0 20px;
    }

    .mermaid-container {
        padding: 20px;
        min-height: 400px;
    }

    .mermaid-controls {
        flex-direction: column;
        align-items: center;
    }

    .mermaid-btn {
        width: 100%;
        max-width: 300px;
    }
}