@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');
        
        :root {
            --primary-color: #6c5ce7;
            --secondary-color: #74b9ff;
            --accent-color: #fd79a8;
            --success-color: #00b894;
            --warning-color: #fdcb6e;
            --dark-color: #2d3436;
            --light-color: #ddd;
            --bg-dark: #1a1a2e;
            --bg-light: #16213e;
            --text-light: #e1e8ed;
            --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
        }

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

        body {
            font-family: 'Poppins', sans-serif;
            line-height: 1.6;
            color: var(--text-light);
            background-color: var(--bg-dark);
            overflow-x: hidden;
        }

        /* Language Switcher */
        .language-switcher {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 25px;
            padding: 5px;
            display: flex;
            gap: 3px;
            margin-left: 20px;
        }

        .lang-btn {
            background: transparent;
            border: none;
            color: var(--text-light);
            padding: 8px 12px;
            border-radius: 18px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 13px;
            font-weight: 600;
            min-width: 35px;
        }

        .lang-btn.active {
            background: var(--primary-color);
            color: white;
            box-shadow: 0 2px 8px rgba(108, 92, 231, 0.3);
        }

        .lang-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }

        .lang-btn.active:hover {
            background: var(--primary-color);
        }

        /* Animated Background */
        .animated-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            background: var(--bg-dark);
        }

        .animated-bg::before {
            content: '';
            position: absolute;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, var(--primary-color) 2px, transparent 2px);
            background-size: 50px 50px;
            animation: moveStars 20s linear infinite;
            opacity: 0.3;
        }

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

        /* Navigation */
        .navbar {
            background: rgba(26, 26, 46, 0.95) !important;
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            transition: all 0.3s ease;
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .navbar-nav .nav-link {
            color: var(--text-light) !important;
            font-weight: 500;
            margin: 0 15px;
            position: relative;
            transition: all 0.3s ease;
        }

        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -5px;
            left: 50%;
            background: var(--primary-color);
            transition: all 0.3s ease;
        }

        .navbar-nav .nav-link:hover::after {
            width: 100%;
            left: 0;
        }

        /* Hero Section */
        .hero-section {
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            text-align: center;
            z-index: 2;
        }

        .hero-title {
            font-size: 4rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: slideInUp 1s ease-out;
        }

        .hero-subtitle {
            font-size: 1.5rem;
            margin-bottom: 30px;
            opacity: 0.8;
            animation: slideInUp 1s ease-out 0.2s both;
        }

        .hero-description {
            font-size: 1.2rem;
            max-width: 600px;
            margin: 0 auto 40px;
            opacity: 0.7;
            animation: slideInUp 1s ease-out 0.4s both;
        }

        .hero-buttons {
            animation: slideInUp 1s ease-out 0.6s both;
        }

        .btn-gradient {
            background: var(--gradient-2);
            border: none;
            color: white;
            padding: 15px 40px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            margin: 0 10px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            text-decoration: none;
            display: inline-block;
        }

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

        .btn-gradient:hover::before {
            left: 100%;
        }

        .btn-gradient:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
            color: white;
        }

        .btn-outline-gradient {
            background: transparent;
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
            padding: 13px 38px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: 50px;
            margin: 0 10px;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .btn-outline-gradient:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(108, 92, 231, 0.3);
        }

        /* Floating Elements */
        .floating-element {
            position: absolute;
            opacity: 0.1;
            animation: float 6s ease-in-out infinite;
        }

        .floating-element:nth-child(1) {
            top: 10%;
            left: 10%;
            animation-delay: 0s;
        }

        .floating-element:nth-child(2) {
            top: 20%;
            right: 10%;
            animation-delay: 2s;
        }

        .floating-element:nth-child(3) {
            bottom: 10%;
            left: 20%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }

        /* Section Styling */
        .section {
            padding: 100px 0;
            position: relative;
        }

        .section-title {
            font-size: 3rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 60px;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* About Section */
        .about-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
            margin-bottom: 30px;
            transition: transform 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .about-card:hover {
            transform: translateY(-10px);
        }

        .about-icon {
            font-size: 3rem;
            background: var(--gradient-3);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
        }

        /* Skills Section */
        .skill-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            transition: all 0.3s ease;
            margin-bottom: 80px; /* Kartlar arasındaki mesafeyi daha da artırdım */
            position: relative;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        /* Skills section row spacing */
        #skills .row {
            margin-bottom: 40px;
        }

        #skills .col-lg-3,
        #skills .col-md-6 {
            margin-bottom: 50px;
        }

        .skill-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
            transition: left 0.5s;
        }

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

        .skill-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary-color);
        }

        .skill-icon {
            font-size: 3.5rem;
            margin-bottom: 20px;
            background: var(--gradient-2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Projects Section */
        .project-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            overflow: hidden;
            transition: all 0.3s ease;
            margin-bottom: 30px;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .project-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }

        .project-image {
            height: 250px;
            background: var(--gradient-1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 4rem;
            color: white;
            position: relative;
            overflow: hidden;
            flex-shrink: 0;
        }

        .project-image::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
            transform: translateX(-100%);
            transition: transform 0.5s;
        }

        .project-card:hover .project-image::before {
            transform: translateX(100%);
        }

        .project-content {
            padding: 30px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .project-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-light);
        }

        .project-description {
            margin-bottom: 20px;
            opacity: 0.8;
            line-height: 1.6;
            flex-grow: 1;
        }

        .tech-stack {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .tech-tag {
            background: var(--gradient-3);
            color: white;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .project-links .btn-outline-gradient,
        .project-links .btn-gradient {
            padding: 10px 20px;
            font-size: 0.9rem;
            margin: 5px;
        }

        /* Project section row adjustments */
        #projects .row {
            align-items: stretch;
        }

        #projects .col-lg-6 {
            display: flex;
            margin-bottom: 30px;
        }

        /* Experience Section */
        .experience-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 40px;
            transition: transform 0.3s ease;
        }

        .experience-card:hover {
            transform: translateY(-10px);
        }

        .experience-header {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }

        .company-logo {
            width: 80px;
            height: 80px;
            background: var(--gradient-2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: white;
            margin-right: 25px;
            flex-shrink: 0;
        }

        .experience-info h4 {
            margin: 0;
            font-size: 1.4rem;
            font-weight: 700;
        }

        .experience-info h5 {
            margin: 5px 0;
            color: var(--primary-color);
            font-weight: 600;
        }

        .experience-date {
            margin: 0;
            opacity: 0.7;
            font-size: 0.9rem;
        }

        .experience-details ul {
            list-style: none;
            padding: 0;
        }

        .experience-details li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 15px;
            line-height: 1.6;
        }

        .experience-details li::before {
            content: '▶';
            position: absolute;
            left: 0;
            color: var(--primary-color);
            font-size: 0.8rem;
        }

        /* Certifications Section */
        .cert-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .cert-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary-color);
        }

        .cert-icon {
            font-size: 3rem;
            margin-bottom: 20px;
            background: var(--gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cert-provider {
            color: var(--primary-color);
            font-weight: 600;
            margin-bottom: 15px;
        }
        .contact-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            padding: 50px;
            text-align: center;
        }

        .contact-item {
            margin: 30px 0;
            font-size: 1.2rem;
        }

        .contact-item i {
            font-size: 1.5rem;
            margin-right: 15px;
            background: var(--gradient-2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .social-links {
            margin-top: 40px;
        }

        .social-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            background: var(--gradient-1);
            color: white;
            border-radius: 50%;
            font-size: 1.5rem;
            margin: 0 10px;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .social-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
            color: white;
        }

        /* Footer */
        .footer {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 30px 0;
            text-align: center;
        }

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

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

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

        /* Responsive */
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            
            .hero-subtitle {
                font-size: 1.2rem;
            }
            
            .hero-description {
                font-size: 1rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .btn-gradient, .btn-outline-gradient {
                padding: 12px 30px;
                font-size: 1rem;
                margin: 5px;
            }

            .language-switcher {
                top: 10px;
                right: 10px;
            }

            .experience-header {
                flex-direction: column;
                text-align: center;
            }

            .company-logo {
                margin-right: 0;
                margin-bottom: 20px;
            }
        }

        /* Scroll indicator */
        .scroll-indicator {
            position: fixed;
            top: 0;
            left: 0;
            height: 4px;
            background: var(--gradient-1);
            z-index: 1000;
            transition: width 0.3s ease;
        }

        /* Language specific content hiding */
        .lang-tr,
        .lang-en {
            transition: opacity 0.3s ease;
        }

        .lang-tr.hidden,
        .lang-en.hidden {
            display: none;
        }