:root {
            
            --neon-green: #00FF41; 
            --dark-bg: #000000; 
            --dark-surface: #101010; 
            --glass-bg: rgba(0, 255, 65, 0.05); 
            
            --text-primary: #E0E0E0; 
            --text-secondary: #888888; 
            --border-color: #222; 
            
            --accent-green: #00FF41;
            --secondary-accent: #00AAFF; /* Secondary blue accent for variety */
            --primary-gradient: linear-gradient(135deg, #00FF41 0%, #00AAFF 100%);
            --secondary-gradient: linear-gradient(135deg, #00FF41 0%, #008021 100%);
            --tertiary-gradient: linear-gradient(135deg, #00AAFF 0%, #00FF41 100%);
            --shadow-color: rgba(0, 255, 65, 0.4);
            --button-hover-shadow: 0 0 15px rgba(0, 255, 65, 0.8), 0 0 30px rgba(0, 255, 65, 0.3); 
        }

        
        body.light-mode {
            --dark-bg: #f4f7f6;
            --dark-surface: #ffffff;
            --glass-bg: rgba(0, 0, 0, 0.05);
            --text-primary: #1f2937;
            --text-secondary: #4b5563;
            --border-color: #eeeeee;
            --accent-green: #008021;
            --shadow-color: rgba(0, 0, 0, 0.1);
            --button-hover-shadow: 0 0 20px rgba(0, 128, 33, 0.3);
        }

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

        body {
            font-family: 'Share Tech Mono', monospace; 
            background: var(--dark-bg);
            color: var(--text-primary); 
            overflow-x: hidden;
            line-height: 1.6;
            transition: background-color 0.5s, color 0.5s; 
            
            
        }
        
        
        h1, h2, h3, h4, .stat-numb {
            text-shadow: 
                1px 1px 2px rgba(0, 255, 65, 0.5),
                -1px -1px 2px rgba(0, 255, 65, 0.5);
            animation: flicker 1.5s infinite alternate;
        }

        @keyframes flicker {
            0%, 100% { opacity: 1; text-shadow: 1px 1px var(--neon-green); }
            50% { opacity: 0.9; text-shadow: -1px -1px var(--neon-green); }
            70% { opacity: 1; text-shadow: 1px -1px var(--secondary-accent); }
            80% { opacity: 0.9; text-shadow: -1px 1px var(--secondary-accent); }
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        
        #matrix-canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1; 
            opacity: 0.3; 
        }

       

        
        #navbar {
            background: var(--dark-surface);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: background 0.3s;
            border-bottom: 2px solid var(--accent-green);
        }

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

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            height: 30px; 
        }

        .hacker-logo {
            height: 30px; 
            width: auto;
            filter: drop-shadow(0 0 5px var(--neon-green)) drop-shadow(0 0 10px rgba(0, 255, 65, 0.5));
            transition: filter 0.3s;
        }
        
        .hacker-logo:hover {
            filter: drop-shadow(0 0 10px var(--secondary-accent)) drop-shadow(0 0 20px rgba(0, 170, 255, 0.7));
        }

        .nav-menu {
            display: flex;
            flex-wrap: wrap; 
            list-style: none;
            gap: 2rem;
        }

        .nav-menu a {
            color: var(--text-secondary); 
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s, text-shadow 0.3s;
            white-space: nowrap; 
        }

        .nav-menu a:hover {
            color: var(--accent-green); 
            text-shadow: 0 0 5px var(--neon-green);
        }

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

        
        #theme-toggle {
            background: none;
            border: none;
            color: var(--text-primary); 
            font-size: 1.25rem;
            cursor: pointer;
            padding: 0.5rem;
            border-radius: 50%;
            transition: all 0.3s;
            text-shadow: 0 0 5px var(--neon-green);
        }

        #theme-toggle:hover {
            transform: scale(1.1);
            color: var(--secondary-accent);
        }

        
        .hamburger {
            display: none;
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            margin: 5px 0;
            background: var(--text-primary);
            transition: 0.4s;
        }

       
        section {
            padding: 6rem 0;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-title span {
            color: var(--neon-green);
        }

       
        #home {
            min-height: 80vh;
            display: flex;
            align-items: center;
            text-align: center;
            padding-top: 5rem;
        }

        .hero-image {
            width: 200px;
            height: 200px;
            border-radius: 50%;
            overflow: hidden;
            box-shadow: 0 0 10px var(--neon-green), 0 0 30px rgba(0, 255, 65, 0.5);
            transition: transform 0.3s;
            border: 3px solid var(--accent-green);
        }

        .hero-image:hover {
            transform: scale(1.05) rotate(5deg);
        }

        .hero-text h1 {
            font-size: 3.5rem;
            font-weight: 900;
            margin-bottom: 0.5rem;
        }

        .typing-text {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--accent-green);
            min-height: 2rem; 
            text-shadow: 0 0 8px var(--neon-green);
        }

        .hero-text p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 1rem auto 2rem;
        }

        .btn {
            padding: 0.75rem 2rem;
            border-radius: 5px; 
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 0 10px var(--shadow-color);
            position: relative;
            overflow: hidden;
            border: 2px solid var(--accent-green);
            cursor: pointer;
            text-transform: uppercase;
        }

        .btn-primary {
            background: var(--accent-green);
            color: var(--dark-bg);
            border: 2px solid var(--accent-green);
        }

        .btn-primary:hover {
            background: var(--dark-bg);
            color: var(--accent-green);
            box-shadow: var(--button-hover-shadow);
        }

        .btn-secondary {
            background: none;
            color: var(--accent-green);
            border: 2px solid var(--accent-green);
        }

        .btn-secondary:hover {
            background: var(--accent-green);
            color: var(--dark-bg);
            box-shadow: var(--button-hover-shadow);
        }

        
        .hero-stats {
            background: var(--glass-bg);
            border-radius: 5px;
            border: 1px solid var(--accent-green);
            box-shadow: 0 0 20px var(--shadow-color);
        }

        .stat-numb {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--secondary-accent);
            text-shadow: 0 0 10px var(--secondary-accent);
        }

        .stat-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        
        #user-id-display {
            color: var(--secondary-accent);
            text-shadow: 0 0 5px var(--secondary-accent);
        }

        
        .interest-card, .skill-card, .project-card, .timeline-content {
            background: var(--dark-surface);
            border-radius: 5px;
            border: 1px solid var(--border-color); 
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.5); 
            transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s; 
        }

        .interest-card:hover, .skill-card:hover, .project-card:hover, .timeline-content:hover {
            transform: translateY(-5px);
            border-color: var(--accent-green); 
            box-shadow: 0 0 20px var(--shadow-color); 
        }

        .interest-card i {
            color: var(--secondary-accent);
            text-shadow: 0 0 5px var(--secondary-accent);
        }

        
        .skill-card i {
            color: var(--accent-green);
            text-shadow: 0 0 8px var(--accent-green);
        }

        .skill-card .rating {
            color: var(--secondary-accent);
        }

        
        .timeline::after {
            background: var(--secondary-accent);
        }

        .timeline-item::after {
            background: var(--dark-bg);
            border: 4px solid var(--accent-green);
        }

        .timeline-content h3 {
            color: var(--secondary-accent);
            text-shadow: none;
        }

       
        .filter-btn {
            background: var(--dark-surface);
            color: var(--text-secondary);
            border: 1px solid var(--text-secondary);
            border-radius: 5px;
            padding: 0.5rem 1rem;
            cursor: pointer;
            font-family: 'Share Tech Mono', monospace;
            transition: all 0.3s;
        }

        .filter-btn.active,
        .filter-btn:hover {
            background: var(--accent-green);
            color: var(--dark-bg);
            border-color: var(--accent-green);
            box-shadow: 0 0 10px var(--neon-green);
        }

        .project-links a {
            color: var(--secondary-accent);
            text-decoration: none;
            transition: color 0.3s;
        }

        .project-links a:hover {
            color: var(--accent-green);
            text-shadow: 0 0 5px var(--neon-green);
        }

        .contact-card {
            max-width: 600px; 
            margin: 0 auto;
            padding: 3rem;
            text-align: left;
            border-radius: 5px;
            border: 1px solid var(--accent-green);
            box-shadow: 0 0 20px rgba(0, 255, 65, 0.5);
        }

        .contact-form {
            display: flex;
            flex-direction: column; 
            gap: 1.5rem; 
        }
        
        .form-group {
            display: flex;
            gap: 1rem; 
        }

        
        .contact-form input,
        .contact-form textarea {
            width: 100%; 
            padding: 0.75rem; 
            border-radius: 5px;
            border: 1px solid var(--border-color);
            background: rgba(0, 0, 0, 0.5);
            color: var(--text-primary);
            transition: border-color 0.3s, box-shadow 0.3s;
            font-family: 'Share Tech Mono', monospace; 
        }

        
        .form-group input {
            flex: 1; 
        }

        .contact-form input:focus,
        .contact-form textarea:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 8px var(--accent-green);
        }

        
        .contact-form .btn-primary {
            width: 100%; 
            text-align: center;
        }


        /* Footer */
        footer {
            background: var(--dark-surface);
            border-top: 2px solid var(--accent-green);
        }
        
        footer p {
            color: var(--text-secondary); 
        }
        
        footer a {
            color: var(--text-primary); 
            transition: color 0.3s, text-shadow 0.3s;
        }

        footer a:hover {
            color: var(--neon-green);
            text-shadow: 0 0 5px var(--neon-green);
        }

        
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

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

        
        .hero-content { display: flex; flex-direction: column; align-items: center; gap: 2rem; width: 100%; }
        .hero-image img { width: 100%; height: 100%; object-fit: cover; }
        .hero-buttons { display: grid; gap: 1.5rem; }
        .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; max-width: 800px; margin: 4rem auto 0; padding: 2rem; }
        .stat-item { text-align: center; }
        .about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
        .interests-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
        .about-image { border-radius: 5px; overflow: hidden; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); }
        .about-image img { width: 100%; height: auto; display: block; }
        .skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
        .timeline { position: relative; max-width: 900px; margin: 0 auto; padding-left: 3rem; }
        .timeline-item { padding: 10px 0; position: relative; background-color: inherit; width: 100%; }
        .timeline-content { padding: 20px; margin-left: 30px; }
        .projects-filter { display: flex; justify-content: center; gap: 1rem; margin-bottom: 3rem; }
        .projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
        .project-image { height: 200px; background-size: cover; background-position: center; border-radius: 5px 5px 0 0; }
        .project-info { padding: 1.5rem; }
        .project-info h3 { margin-bottom: 0.5rem; color: var(--accent-green); }
        .project-links { margin-top: 1rem; display: flex; gap: 0.75rem; align-items: center; }
        
        
        .contact-card { 
            max-width: 600px; 
            margin: 0 auto; 
            padding: 3rem; 
            text-align: left; 
        }
        

        @media (max-width: 992px) {
            .nav-menu { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; width: 100%; background: var(--dark-bg); box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5); padding: 1rem 0; gap: 0; border-bottom: 2px solid var(--accent-green); }
            .nav-menu.active { display: flex; }
            .nav-menu li a { padding: 0.75rem 2rem; display: block; text-align: center; }
            .hamburger { display: block; }
            .about-content { grid-template-columns: 1fr; }
            .skills-grid { grid-template-columns: repeat(2, 1fr); }
            .projects-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            .hero-text h1 { font-size: 2.5rem; }
            .hero-stats { grid-template-columns: 1fr; }
            .interests-grid { grid-template-columns: 1fr; }
            .hero-buttons { flex-direction: column; align-items: center; }
            .skills-grid, .projects-grid { grid-template-columns: 1fr; }
            .timeline { padding-left: 2rem; }
        }
        
        @media (max-width: 480px) {
            .form-group { 
                flex-direction: column; 
                gap: 1.5rem; 
            }
            .projects-filter { 
                flex-wrap: wrap; 
                justify-content: flex-start;
            }
        }

.contact-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-bottom: 2rem;
}

.contact-card {
  max-width: 650px;
  width: 100%;
  margin: 0 auto;
  padding: 3rem;
  text-align: left;
  border-radius: 10px;
  border: 1px solid var(--accent-green);
  background: var(--dark-surface);
  box-shadow: 0 0 25px rgba(0, 255, 65, 0.3);
}

.contact-description {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.5;
}

.contact-message {
  margin-top: 1rem;
  color: var(--accent-green);
  font-size: 0.9rem;
  text-align: center;
}

footer {
  background: var(--dark-surface);
  border-top: 2px solid var(--accent-green);
  padding: 2.5rem 1rem;
  text-align: center;
}

.footer-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-container p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-icons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
}

.footer-icons a {
  color: var(--text-primary);
  font-size: 1.5rem;
  transition: color 0.3s, text-shadow 0.3s;
}

.footer-icons a:hover {
  color: var(--neon-green);
  text-shadow: 0 0 5px var(--neon-green);
}

#hacker-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg); 
    z-index: 9999; 
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}

#hacker-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none; 
}

.loader-content {
    text-align: left;
    color: var(--neon-green);
    font-size: 1.5rem;
    padding: 2rem;
    border: 2px solid var(--neon-green);
    box-shadow: 0 0 20px var(--neon-green), inset 0 0 20px var(--neon-green);
    background: rgba(0, 0, 0, 0.9);
}

.loader-text {
    font-family: 'Share Tech Mono', monospace;
    white-space: pre; 
}

.terminal-line {
    display: flex; 
    align-items: flex-end;
    min-height: 1.5rem; 
    margin: 0.5rem 0;
}

#loading-terminal-line {
    display: inline-block;
    white-space: pre; 
}

.blink {
    animation: blink-caret 0.75s step-end infinite;
    display: inline-block;
    width: 1ch; 
    color: var(--neon-green);
}

@keyframes blink-caret {
    from, to { opacity: 0; }
    50% { opacity: 1; }
}



body.light-mode #hacker-loader {
    background: var(--dark-bg); 
    border: none;
}

body.light-mode .loader-content {
    border: 2px solid var(--accent-green);
    box-shadow: 0 0 10px var(--accent-green), inset 0 0 10px var(--accent-green);
    color: var(--accent-green);
}