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

        :root {
            --bg-primary: #000000;
            --bg-secondary: #0a0f0d;
            --accent-green: #00ff41;
            --accent-green-dark: #00cc33;
            --accent-green-light: #39ff14;
            --text-primary: #e0e6ed;
            --text-secondary: #8892b0;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            overflow-x: hidden;
            line-height: 1.6;
        }

        /* Matrix Rain Transition Overlay - Düzeltildi: Sadece kapsayıcı div */
        #matrix-transition-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: #000;
            z-index: 10000;
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.3s;
        }

        #matrix-transition-container.active {
            opacity: 1;
            pointer-events: all;
        }

        /* Scanline efekti */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: repeating-linear-gradient(
                0deg,
                rgba(0, 255, 65, 0.03) 0px,
                transparent 1px,
                transparent 2px,
                rgba(0, 255, 65, 0.03) 3px
            );
            pointer-events: none;
            z-index: 9999; /* Z-index düşürüldü, içerikten yukarıda, Matrix'ten altta. */
        }

        /* Grid arka plan */
        body::after {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(0, 255, 65, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 255, 65, 0.05) 1px, transparent 1px);
            background-size: 50px 50px;
            pointer-events: none;
            z-index: -2;
        }

        canvas#particles {
            position: fixed;
            top: 0;
            left: 0;
            z-index: -1;
        }

        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(0, 0, 0, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1rem 0;
            border-bottom: 2px solid var(--accent-green);
            box-shadow: 0 0 20px rgba(0, 255, 65, 0.3);
        }

        nav ul {
            display: flex;
            justify-content: center;
            list-style: none;
            gap: 2rem;
        }

        nav a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            position: relative;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 0.9rem;
        }

        nav a:hover {
            color: var(--accent-green);
            text-shadow: 0 0 10px var(--accent-green);
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-green);
            box-shadow: 0 0 10px var(--accent-green);
            transition: width 0.3s;
        }

        nav a:hover::after {
            width: 100%;
        }

        section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 3rem 2rem;
            position: relative;
            animation: fadeIn 1s ease-in;
        }

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

        #hero {
            padding-top: 5rem;
        }

        .container {
            max-width: 1200px;
            width: 100%;
        }

        #hero {
            text-align: center;
        }

        .glitch {
            font-size: 5.5rem;
            font-weight: 900;
            text-transform: uppercase;
            position: relative;
            color: var(--accent-green);
            text-shadow: 0.02em 0 0 var(--accent-green-light), -0.01em -0.02em 0 var(--accent-green-dark),
                         0.01em 0.02em 0 var(--accent-green);
            animation: glitch 700ms infinite;
            letter-spacing: 4px;
        }

        @keyframes glitch {
            0% {
                text-shadow: 0.02em 0 0 var(--accent-green-light), -0.01em -0.02em 0 var(--accent-green-dark),
                             0.01em 0.02em 0 var(--accent-green);
            }
            14% {
                text-shadow: 0.02em 0 0 var(--accent-green-light), -0.01em -0.02em 0 var(--accent-green-dark),
                             0.01em 0.02em 0 var(--accent-green);
            }
            15% {
                text-shadow: -0.02em -0.01em 0 var(--accent-green-light), 0.01em 0.01em 0 var(--accent-green-dark),
                             -0.02em -0.02em 0 var(--accent-green);
            }
            49% {
                text-shadow: -0.02em -0.01em 0 var(--accent-green-light), 0.01em 0.01em 0 var(--accent-green-dark),
                             -0.02em -0.02em 0 var(--accent-green);
            }
            50% {
                text-shadow: 0.01em 0.02em 0 var(--accent-green-light), 0.02em 0 0 var(--accent-green-dark),
                             0 -0.02em 0 var(--accent-green);
            }
            99% {
                text-shadow: 0.01em 0.02em 0 var(--accent-green-light), 0.02em 0 0 var(--accent-green-dark),
                             0 -0.02em 0 var(--accent-green);
            }
            100% {
                text-shadow: -0.01em 0 0 var(--accent-green-light), -0.01em -0.01em 0 var(--accent-green-dark),
                             -0.01em -0.02em 0 var(--accent-green);
            }
        }

        .subtitle {
            font-size: 1.5rem;
            color: var(--text-secondary);
            margin-top: 1rem;
            animation: slideUp 1s ease-out 0.3s both;
        }

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

        .typing {
            border-right: 2px solid var(--accent-green);
            animation: blink 0.7s infinite;
        }

        @keyframes blink {
            50% { border-color: transparent; }
        }

        .section-title {
            font-size: 2.5rem;
            margin-bottom: 3rem;
            text-align: center;
            position: relative;
            display: block;
            text-transform: uppercase;
            letter-spacing: 2px;
        }

        .section-title::before {
            content: '<';
            color: var(--accent-green);
            margin-right: 0.5rem;
            animation: pulse 2s infinite;
        }

        .section-title::after {
            content: '/>';
            color: var(--accent-green);
            margin-left: 0.5rem;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .about-text {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .about-text p {
            animation: fadeInLeft 1s ease-out;
        }

        @keyframes fadeInLeft {
            from {
                opacity: 0;
                transform: translateX(-30px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .code-block {
            background: var(--bg-secondary);
            border: 2px solid var(--accent-green);
            border-radius: 8px;
            padding: 1.5rem;
            font-family: 'Courier New', monospace;
            position: relative;
            box-shadow: 0 0 30px rgba(0, 255, 65, 0.3);
            animation: fadeInRight 1s ease-out;
        }

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

        .code-block::before {
            content: '> Terminal';
            position: absolute;
            top: -10px;
            left: 20px;
            background: var(--bg-primary);
            padding: 0 10px;
            color: var(--accent-green);
            font-size: 0.8rem;
            letter-spacing: 2px;
        }

        .code-line {
            margin: 0.5rem 0;
        }

        .code-comment {
            color: var(--text-secondary);
        }

        .code-keyword {
            color: var(--accent-green-light);
        }

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

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2rem;
        }

        .project-card {
            background: var(--bg-secondary);
            border: 2px solid rgba(0, 255, 65, 0.3);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s;
            cursor: pointer;
            position: relative;
            transform: translateY(0);
        }

        .project-image {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-bottom: 2px solid rgba(0, 255, 65, 0.3);
        }

        .project-content {
            padding: 2rem;
        }

        .project-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 255, 65, 0.2), transparent);
            transition: left 0.5s;
        }

        .project-card:hover::before {
            left: 100%;
        }

        .project-card::after {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(45deg, var(--accent-green), var(--accent-green-dark));
            border-radius: 12px;
            opacity: 0;
            z-index: -1;
            transition: opacity 0.3s;
        }

        .project-card:hover {
            transform: translateY(-10px) scale(1.02);
            border-color: var(--accent-green);
            box-shadow: 0 10px 40px rgba(0, 255, 65, 0.4);
        }

        .project-card:hover::after {
            opacity: 0.3;
        }

        .project-title {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--accent-green);
            text-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
        }

        .project-desc {
            color: var(--text-secondary);
            margin-bottom: 1rem;
            line-height: 1.6;
        }

        .project-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .tag {
            background: rgba(0, 255, 65, 0.1);
            color: var(--accent-green);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.9rem;
            border: 1px solid var(--accent-green);
            transition: all 0.3s;
        }

        .tag:hover {
            background: var(--accent-green);
            color: var(--bg-primary);
            box-shadow: 0 0 15px var(--accent-green);
            transform: scale(1.1);
        }

        .project-link {
            display: inline-block;
            padding: 0.8rem 1.5rem;
            background: transparent;
            border: 2px solid var(--accent-green);
            color: var(--accent-green);
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
            overflow: hidden;
        }

        .project-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--accent-green);
            transition: left 0.3s;
            z-index: -1;
        }

        .project-link:hover::before {
            left: 0;
        }

        .project-link:hover {
            color: var(--bg-primary);
            box-shadow: 0 0 20px var(--accent-green);
        }

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

        .skill-category {
            background: var(--bg-secondary);
            padding: 2rem;
            border-radius: 12px;
            border: 2px solid rgba(0, 255, 65, 0.3);
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .skill-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
            animation: slideBar 2s infinite;
        }

        @keyframes slideBar {
            0% {
                transform: translateX(-100%);
            }
            100% {
                transform: translateX(100%);
            }
        }

        .skill-category:hover {
            transform: translateY(-5px);
            border-color: var(--accent-green);
            box-shadow: 0 10px 30px rgba(0, 255, 65, 0.3);
        }

        .skill-category h3 {
            color: var(--accent-green-light);
            margin-bottom: 1rem;
            font-size: 1.3rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .skill-list {
            list-style: none;
        }

        .skill-list li {
            padding: 0.5rem 0;
            color: var(--text-secondary);
            position: relative;
            padding-left: 1.5rem;
            transition: all 0.3s;
        }

        .skill-list li::before {
            content: '▹';
            position: absolute;
            left: 0;
            color: var(--accent-green);
            transition: all 0.3s;
        }

        .skill-list li:hover {
            color: var(--accent-green);
            padding-left: 2rem;
        }

        .skill-list li:hover::before {
            left: 5px;
            text-shadow: 0 0 10px var(--accent-green);
        }

        .contact-content {
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .contact-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .contact-btn {
            padding: 1rem 2rem;
            background: transparent;
            border: 2px solid var(--accent-green);
            color: var(--accent-green);
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
            overflow: hidden;
        }

        .contact-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: var(--accent-green);
            transition: left 0.3s;
            z-index: -1;
        }

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

        .contact-btn:hover {
            color: var(--bg-primary);
            box-shadow: 0 0 25px var(--accent-green);
            transform: translateY(-3px);
        }

        /* Footer Stilleri */
        footer {
            background: var(--bg-secondary);
            padding: 1.5rem 2rem;
            text-align: center;
            border-top: 2px solid var(--accent-green);
            box-shadow: 0 0 20px rgba(0, 255, 65, 0.2);
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 5rem;
        }

        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-content p {
            margin: 0.5rem 0;
        }

        .footer-content a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color 0.3s, text-shadow 0.3s;
        }

        .footer-content a:hover {
            color: var(--accent-green-light);
            text-shadow: 0 0 10px var(--accent-green);
        }

        /* Footer Divider Effect */
        footer::before {
            content: '';
            display: block;
            width: 100%;
            height: 1px;
            background: repeating-linear-gradient(
                90deg,
                var(--accent-green) 0%,
                transparent 1%,
                transparent 2%
            );
            margin-bottom: 1rem;
            animation: scanlineMove 10s linear infinite;
        }

        @keyframes scanlineMove {
            0% { background-position: 0% 0; }
            100% { background-position: 100% 0; }
        }

        @media (max-width: 768px) {
            .glitch {
                font-size: 3rem;
            }

            .about-content {
                grid-template-columns: 1fr;
            }

            nav ul {
                gap: 1rem;
                font-size: 0.8rem;
            }

            .contact-links {
                gap: 1rem;
            }

            .contact-btn {
                padding: 0.8rem 1.5rem;
                font-size: 0.9rem;
            }

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

            footer {
                padding: 1rem;
            }
        }