/*
Theme Name: PilrDev Portfolio
Description: Modern, lightweight, and fully responsive WordPress theme for pilr.dev - A developer portfolio + blog with dark/light mode toggle, smooth animations, and SEO optimization.
Author: PilrDev
Version: 1.0.0
License: GPL v2 or later
Text Domain: pilrdev
Tags: portfolio, blog, dark-mode, responsive, developer, modern, lightweight, seo
*/

:root {
    /* Light mode colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --border-color: #e2e8f0;
    --shadow: rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 5rem 0;
    --element-spacing: 2rem;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    transition: var(--transition-smooth);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--accent-green);
}

code, pre {
    font-family: var(--font-mono);
    background-color: var(--bg-secondary);
    padding: 0.2em 0.4em;
    border-radius: 0.25rem;
    font-size: 0.875em;
}

pre {
    padding: 1rem;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-smooth);
}

[data-theme="dark"] .site-header {
    background-color: rgba(15, 23, 42, 0.95);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
}

.site-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-smooth);
}

.main-nav a:hover {
    color: var(--accent-blue);
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: var(--transition-smooth);
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
}

/* Mobile menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        display: none;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul {
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }
}

/* Main content */
main {
    margin-top: 80px;
}

/* Sections */
.section {
    padding: var(--section-padding);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    border-radius: 1.5px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><style>.code{font-family:monospace;font-size:14px;fill:%23ffffff10;}.bracket{fill:%233b82f6;}.string{fill:%2310b981;}.comment{fill:%23718096;}</style></defs><text class="code" x="50" y="50">const developer = {</text><text class="code bracket" x="70" y="80">name: "Pil",</text><text class="code string" x="70" y="110">skills: ["React", "Laravel", "WordPress"],</text><text class="code bracket" x="70" y="140">passion: "connecting_people_through_code"</text><text class="code" x="50" y="170">};</text><text class="comment" x="50" y="220">// Building the future, one line at a time</text><text class="code" x="50" y="270">function buildAmazingThings() {</text><text class="code" x="70" y="300">return creativity + technology;</text><text class="code" x="50" y="330">}</text></svg>') no-repeat center center;
    background-size: cover;
    opacity: 0.05;
    animation: codeFloat 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes codeFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(1deg); }
    50% { transform: translateY(-10px) rotate(-0.5deg); }
    75% { transform: translateY(-30px) rotate(0.5deg); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
    align-items: center;
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
}

.hero-text {
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    position: relative;
    font-size: 40px;
}

.hero-text h1::before {
    content: '> ';
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 0.8em;
    margin-right: 0.5rem;
    animation: terminalBlink 1.5s ease-in-out infinite;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    position: relative;
}

.hero-tagline::before {
    content: '// ';
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-right: 0.5rem;
    opacity: 0.7;
}

.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--accent-blue);
    white-space: nowrap;
    animation: typewriter 3s steps(40, end), blink-caret 0.75s step-end infinite;
    background: rgba(0, 0, 0, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    font-family: var(--font-mono);
    position: relative;
}

.typewriter::before {
    content: '$';
    color: var(--accent-blue);
    margin-right: 0.5rem;
    font-weight: bold;
}

@keyframes terminalBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent-blue); }
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: var(--transition-bounce);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: 'npm run dev';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cta-button:hover::before {
    opacity: 1;
}

.cta-button:hover .cta-text {
    opacity: 0;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    color: white;
}

/* Floating Code Elements */
.floating-code {
    position: absolute;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-blue);
    opacity: 0.3;
    pointer-events: none;
    z-index: 1;
}

.floating-code:nth-child(1) {
    top: 15%;
    right: 10%;
    animation: floatCode1 8s ease-in-out infinite;
}

.floating-code:nth-child(2) {
    bottom: 20%;
    left: 5%;
    animation: floatCode2 10s ease-in-out infinite;
}

.floating-code:nth-child(3) {
    top: 30%;
    left: 15%;
    animation: floatCode3 12s ease-in-out infinite;
}

@keyframes floatCode1 {
    0%, 100% { transform: translateY(0px) translateX(0px) rotate(0deg); opacity: 0.2; }
    25% { transform: translateY(-20px) translateX(10px) rotate(2deg); opacity: 0.4; }
    50% { transform: translateY(-10px) translateX(20px) rotate(-1deg); opacity: 0.3; }
    75% { transform: translateY(-30px) translateX(5px) rotate(1deg); opacity: 0.5; }
}

@keyframes floatCode2 {
    0%, 100% { transform: translateY(0px) translateX(0px) rotate(0deg); opacity: 0.3; }
    33% { transform: translateY(15px) translateX(-15px) rotate(-2deg); opacity: 0.2; }
    66% { transform: translateY(25px) translateX(-25px) rotate(1deg); opacity: 0.4; }
}

@keyframes floatCode3 {
    0%, 100% { transform: translateY(0px) translateX(0px) rotate(0deg); opacity: 0.25; }
    50% { transform: translateY(-15px) translateX(-10px) rotate(3deg); opacity: 0.4; }
}

@keyframes slideCode {
    0% {
        transform: translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateX(calc(100vw + 200px));
        opacity: 0;
    }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Terminal-style elements */
.terminal-window {
    background: #1a1a1a;
    border-radius: 0.5rem;
    padding: 1rem;
    margin: 1rem 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid #333;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #333;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27ca3f; }

.terminal-line {
    color: var(--accent-green);
    margin: 0.25rem 0;
}

.terminal-line::before {
    content: '$ ';
    color: var(--accent-blue);
}

.terminal-output {
    color: #888;
    margin-left: 1rem;
}

/* Code Editor Style Hero Elements */
.hero-code-block {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.8);
    border-radius: 0.5rem;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
    opacity: 0;
    animation: slideInFromRight 1s ease-out 2s forwards;
    z-index: 1;
}

@media (max-width: 768px) {
    .hero-code-block {
        display: none;
    }
}

.hero-code-block .code-line {
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
}

.hero-code-block .line-number {
    color: #666;
    margin-right: 1rem;
    min-width: 1.5rem;
}

.hero-code-block .code-keyword {
    color: var(--accent-blue);
}

.hero-code-block .code-string {
    color: var(--accent-green);
}

.hero-code-block .code-comment {
    color: #666;
    font-style: italic;
}

@keyframes slideInFromRight {
    0% {
        transform: translateY(-50%) translateX(100px);
        opacity: 0;
    }
    100% {
        transform: translateY(-50%) translateX(0);
        opacity: 0.9;
    }
}

.hero-image {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    position: relative;
    overflow: hidden;
}

.hero-image img {
    width: calc(100% - 6px);
    height: calc(100% - 6px);
    border-radius: 50%;
    object-fit: cover;
    position: absolute;
    top: 3px;
    left: 3px;
}

/* Grid layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border-radius: 0.75rem;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    box-shadow: 0 4px 6px var(--shadow);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow);
}

.project-card {
    position: relative;
    overflow: hidden;
}

/* Animated gradient border */
.project-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--accent-blue), var(--accent-green), var(--accent-orange), var(--accent-blue));
    background-size: 300% 300%;
    border-radius: 0.75rem;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover::before {
    opacity: 1;
    animation: gradient-rotate 3s ease-in-out infinite;
}

/* Terminal-style code overlay */
.project-card::after {
    content: '> npm start\A> Building project...\A> ✓ Compiled successfully';
    white-space: pre;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.95);
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 10;
    border-radius: 0.75rem;
    line-height: 1.8;
}

.project-card:hover::after {
    opacity: 1;
    animation: terminal-flicker 0.5s ease-in;
}

@keyframes gradient-rotate {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes terminal-flicker {
    0%, 100% { opacity: 1; }
    10% { opacity: 0.8; }
    20% { opacity: 1; }
    30% { opacity: 0.9; }
    40% { opacity: 1; }
}

@keyframes scan-line {
    0% {
        top: 0%;
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        top: 100%;
        opacity: 0;
    }
}

/* Scanning line effect */
.project-card > .scan-line {
    position: absolute;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
    box-shadow: 0 0 10px var(--accent-green);
    top: 0;
    left: 0;
    opacity: 0;
    z-index: 12;
    pointer-events: none;
}

.project-card:hover > .scan-line {
    animation: scan-line 2s ease-in-out infinite;
}

.project-card .card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    transition: var(--transition-smooth);
    position: relative;
}

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

.project-card .card-content {
    position: relative;
    z-index: 11;
    transition: var(--transition-smooth);
}

.project-card:hover .card-content {
    opacity: 0;
}

.project-card h3 {
    margin-bottom: 0.5rem;
}

.project-card .card-description {
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-blue);
    font-weight: 600;
    transition: var(--transition-smooth);
}

.project-link:hover {
    gap: 1rem;
}

/* Project Technology Tags */
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 11;
}

.tech-tag {
    display: inline-block;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 600;
    transition: var(--transition-smooth);
}

.tech-tag:hover {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

/* Skills section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
    background-color: var(--bg-card);
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), var(--accent-green), transparent);
    transition: all 0.6s ease;
}

.skill-item:hover::before {
    left: 100%;
}

.skill-item::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.skill-item:hover::after {
    width: 100px;
    height: 100px;
    opacity: 0.1;
}

.skill-item:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 20px 40px var(--shadow);
    border-color: var(--accent-blue);
}

.skill-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    transition: var(--transition-smooth);
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.skill-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition-smooth);
    border-radius: 0.5rem;
}

.skill-item:hover .skill-icon {
    animation: floatingNode 2s ease-in-out infinite;
}

.skill-item:hover .skill-icon img {
    filter: drop-shadow(0 0 15px var(--accent-blue)) brightness(1.1);
    transform: scale(1.1);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Blog cards */
.blog-card .card-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.blog-card .card-category {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Contact form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: var(--transition-smooth);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-submit {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

.form-submit:active {
    transform: scale(0.98);
}

/* Social links */
.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: var(--transition-bounce);
}

.social-link:hover {
    transform: translateY(-3px) rotate(5deg);
    color: var(--accent-blue);
    box-shadow: 0 8px 25px var(--shadow);
}

/* Footer */
.site-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 2rem;
    text-align: center;
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.widget {
    text-align: left;
}

.widget h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.widget ul {
    list-style: none;
}

.widget ul li {
    margin-bottom: 0.5rem;
}

.widget ul li a {
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.widget ul li a:hover {
    color: var(--accent-blue);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    color: var(--text-muted);
}

/* Networking/Connection Animations */
@keyframes networkPulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.7;
    }
    50% { 
        transform: scale(1.1);
        opacity: 1;
    }
}

@keyframes connectingLine {
    0% { 
        stroke-dashoffset: 100;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% { 
        stroke-dashoffset: 0;
        opacity: 0.6;
    }
}

@keyframes floatingNode {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(2deg); }
    50% { transform: translateY(-5px) rotate(-1deg); }
    75% { transform: translateY(-15px) rotate(1deg); }
}

@keyframes dataFlow {
    0% { 
        transform: translateX(-100%);
        opacity: 0;
    }
    10%, 90% {
        opacity: 1;
    }
    100% { 
        transform: translateX(100%);
        opacity: 0;
    }
}

/* Network Background Elements */
.network-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

.network-node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 50%;
    animation: networkPulse 3s ease-in-out infinite;
}

.network-node:nth-child(odd) {
    background: var(--accent-green);
    animation-delay: 1s;
}

.network-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
    opacity: 0.3;
    animation: dataFlow 4s linear infinite;
}

.network-line:nth-child(even) {
    background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
    animation-delay: 2s;
}

/* Enhanced Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.animate {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-left.animate {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-right.animate {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.scale-in.animate {
    opacity: 1;
    transform: scale(1);
}

.connect-animation {
    position: relative;
    overflow: hidden;
}

.connect-animation::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
    animation: dataFlow 2s ease-in-out infinite;
}

.connect-animation.animate::before {
    animation-delay: 0.5s;
}

/* Dynamic Connection Animations */
@keyframes fadeInLine {
    0% { 
        opacity: 0;
        transform: scaleX(0);
    }
    50% {
        opacity: 1;
    }
    100% { 
        opacity: 0.8;
        transform: scaleX(1);
    }
}

@keyframes ripple {
    0% {
        width: 0;
        height: 0;
        opacity: 0.5;
    }
    50% {
        opacity: 0.3;
    }
    100% {
        width: 200px;
        height: 200px;
        opacity: 0;
    }
}

@keyframes pulseConnection {
    0%, 100% {
        opacity: 0.3;
        transform: scaleX(0.8);
    }
    50% {
        opacity: 0.8;
        transform: scaleX(1);
    }
}

/* Interactive Connection Effects */
.skills-grid:hover .skill-item:not(:hover) {
    opacity: 0.6;
    transform: scale(0.95);
}

.project-card:hover ~ .project-card {
    opacity: 0.7;
    transform: scale(0.98);
}

/* Network Grid Background Effect */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 20%, var(--accent-blue) 1px, transparent 1px),
        radial-gradient(circle at 80% 80%, var(--accent-green) 1px, transparent 1px),
        radial-gradient(circle at 60% 30%, var(--accent-blue) 1px, transparent 1px),
        radial-gradient(circle at 30% 70%, var(--accent-green) 1px, transparent 1px);
    background-size: 100px 100px, 150px 150px, 80px 80px, 120px 120px;
    opacity: 0.1;
    animation: networkDrift 20s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes networkDrift {
    0% { transform: translate(0, 0); }
    25% { transform: translate(-10px, -5px); }
    50% { transform: translate(-20px, 10px); }
    75% { transform: translate(-10px, -15px); }
    100% { transform: translate(0, 0); }
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

/* Responsive utilities */
@media (max-width: 768px) {
    .hide-mobile { display: none; }
    .show-mobile { display: block; }
}

@media (min-width: 769px) {
    .hide-desktop { display: none; }
    .show-desktop { display: block; }
}