:root {
            
            --black: #000000;
            --black-light: #1a1a1a;
            --white: #ffffff;
            --gray-bg: #f8f8f8;
            --gray-text: #555555;
            
            /* Animasyon Ayarı */
            --transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
            
            /* Gölge Ayarları */
            --shadow-card: 0 10px 30px rgba(0,0,0,0.05);
            --shadow-hover: 0 15px 40px rgba(0,0,0,0.15);
        }

        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            background-color: var(--white);
            color: var(--black);
            font-family: 'Montserrat', sans-serif;
            line-height: 1.7;
            overflow-x: hidden; /* Yatay taşmayı engelle */
        }

        
        h1, h2, h3, h4, h5 {
            font-family: 'Playfair Display', serif;
            font-weight: 600;
            color: var(--black);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        ul {
            list-style: none;
        }

        button {
            font-family: 'Montserrat', sans-serif;
        }


        img:not(.logo img):not(.modal-img):not(.partner-logo):not(.group-logo):not(.doc-img) {
            filter: grayscale(100%);
            transition: var(--transition);
        }


        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            padding: 30px 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            z-index: 1000;
            background-color: transparent; /* Başlangıçta şeffaf */
            color: var(--white);
            transition: var(--transition);
        }

        
        header.scrolled, header.force-scrolled {
            background-color: var(--white);
            color: var(--black);
            padding: 15px 5%;
            box-shadow: 0 4px 30px rgba(0,0,0,0.05);
        }

 
        .logo {
            cursor: pointer;
            display: flex;
            align-items: center;
        }

        .logo img {
            height: 65px; 
            width: auto;
            display: block;
            transition: var(--transition);
            

            filter: none; 
        }


        header:not(.scrolled):not(.force-scrolled) .logo img {
            filter: grayscale(100%) brightness(0) invert(1);
        }


        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 40px;
        }

        nav ul {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        nav a {
            font-size: 13px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            position: relative;
            padding-bottom: 5px;
            cursor: pointer;
            transition: var(--transition);
            text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.3);
        }

        header.scrolled nav a,
        header.force-scrolled nav a {
            text-shadow: none; 
            font-weight: 500;  
        }


        nav a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 1px;
            bottom: 0;
            left: 0;
            background-color: currentColor;
            transition: var(--transition);
        }

        nav a:hover::after, nav a.active::after {
            width: 100%;
        }

        .lang-switch {
            display: flex;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            border-left: 1px solid rgba(128,128,128,0.5);
            padding-left: 20px;
        }

        .lang-switch span {
            cursor: pointer;
            opacity: 0.5;
            transition: var(--transition);
        }

        .lang-switch span:hover, .lang-switch span.active {
            opacity: 1;
            font-weight: 700;
        }

        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 28px;
        }


        main {
            min-height: 100vh;
        }

        .page-section {
            display: none; 
            animation: fadeEffect 0.8s ease forwards;
        }

        @keyframes fadeEffect {
            from { opacity: 0; transform: translateY(15px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .inner-page {
            padding-top: 140px; 
            padding-bottom: 80px;
        }

        .section-padding {
            padding: 100px 5%;
        }

        .section-title {
            text-align: center;
            font-size: 40px;
            margin-bottom: 60px;
            color: var(--black);
            letter-spacing: 1px;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 2px;
            background-color: var(--black);
            margin: 20px auto 0;
        }


        .hero {
            height: 100vh;
            background: 
                linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7)), 
                url('../images/baskılı1.webp') no-repeat center center/cover;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: var(--white);
            padding: 0 20px;
        }

        .hero-content {
            max-width: 900px;
            margin-top: 60px;
        }

        .hero-content h1 {
            font-size: 72px;
            font-style: italic;
            margin-bottom: 25px;
            font-weight: 400;
            line-height: 1.1;
            color: #ffffff !important;
        }

        .hero-content p {
            font-size: 18px;
            font-weight: 300;
            letter-spacing: 3px;
            margin-bottom: 50px;
            text-transform: uppercase;
        }

        .btn-outline {
            display: inline-block;
            padding: 18px 50px;
            background-color: transparent;
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            border: 1px solid var(--white);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background-color: var(--white);
            color: var(--black);
        }

        .btn-dark {
            background-color: var(--black);
            color: var(--white);
            border: 1px solid var(--black);
        }

        .btn-dark:hover {
            background-color: transparent;
            color: var(--black);
        }

        .grid-container {
            display: grid;
            /* Mobilde ve tablette sığdığı kadarını yan yana koyar */
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            max-width: 1600px;
            margin: 0 auto;
        }
        

        @media (min-width: 1200px) {
            .grid-5-layout {
                grid-template-columns: repeat(5, 1fr) !important;
            }
        }

        .card {
            background-color: var(--white);
            cursor: pointer;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            border-radius: 4px;
            overflow: hidden; 
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .card-img-wrapper {
            overflow: hidden;
            margin-bottom: 20px;
            height: 320px; 
        }

        .card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 1s ease;
        }

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

        .card-content {
            text-align: center;
            padding: 0 15px 25px;
        }

        .card-title {
            font-size: 18px;
            margin-bottom: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .card-text {
            font-size: 13px;
            color: var(--gray-text);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .slider-section {
            background-color: var(--white);
            padding: 60px 0;
            border-top: 1px solid #f0f0f0;
            border-bottom: 1px solid #f0f0f0;
            overflow: hidden;
        }

        .slider-title {
            text-align: center;
            font-family: 'Playfair Display', serif;
            font-size: 28px;
            color: var(--black);
            margin-bottom: 40px;
            opacity: 0.8;
        }

        .slider-track {
            display: flex;
            width: calc(200px * 16); 
            animation: scroll 30s linear infinite;
        }

        .slide {
            width: 200px;
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 30px;
        }

        .slide img {
            max-width: 100%;
            max-height: 80px;
            filter: grayscale(100%);
            opacity: 0.6;
            transition: var(--transition);
        }

        .slide img:hover {
            filter: grayscale(0%);
            opacity: 1;
        }

        @keyframes scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(calc(-200px * 8)); } 
        }


        .slider-track-10 {
            display: flex;
            width: calc(200px * 20); 
            animation: scroll-10 35s linear infinite; 
        }

        @keyframes scroll-10 {
            0% { transform: translateX(0); }
            100% { transform: translateX(calc(-200px * 10)); } 
        }

        .department-cta {
            margin-top: 80px;
            padding: 60px;
            background-color: var(--gray-bg);
            text-align: center;
            border-radius: 4px;
            border: 1px solid #eee;
        }

        .department-cta h3 {
            font-size: 28px;
            margin-bottom: 15px;
        }

        .department-cta p {
            color: var(--gray-text);
            margin-bottom: 30px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .about-wrapper {
            display: flex;
            align-items: flex-start; 
            gap: 60px;
            max-width: 1300px;
            margin: 0 auto;
        }

        .about-image {

            flex: 0 0 40%;
            max-width: 40%;
            height: auto;
            object-fit: cover;
            border-radius: 4px;
            box-shadow: var(--shadow-card);
        }

        .about-text {

            flex: 1;
        }

        .about-text h3 {
            font-size: 36px;
            margin-bottom: 30px;
            font-style: italic;
        }

        .about-text p {
            margin-bottom: 20px;
            color: var(--gray-text);
            font-size: 15px;
            text-align: justify; 
            line-height: 1.8;
        }


        .docs-wrapper {
            max-width: 1300px;
            margin: 80px auto 0;
            padding-top: 60px;
            border-top: 1px solid #eee;
        }

        .docs-title {
            font-size: 28px;
            margin-bottom: 40px;
            text-align: center;
            font-family: 'Playfair Display', serif;
        }

        .docs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 40px;
        }

        .doc-item {
            text-align: center;
            background: #fafafa;
            padding: 30px;
            border-radius: 4px;
        }

        .doc-img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            border-radius: 4px;
            box-shadow: var(--shadow-card);
            margin-bottom: 20px;
        }

        .doc-item h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .doc-item p {
            font-size: 14px;
            color: var(--gray-text);
        }


        .accordion {
            max-width: 1200px; 
            margin: 0 auto;
            border-top: 1px solid #ddd;
        }

        details {
            border-bottom: 1px solid #ddd;
        }

        summary {
            padding: 25px 10px;
            font-family: 'Playfair Display', serif;
            font-size: 22px;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            background-color: #fff;
        }

        summary:hover {
            color: var(--black-light);
            background-color: #fafafa;
        }

        summary::-webkit-details-marker { display: none; }

        summary:after {
            content: '+';
            font-family: 'Montserrat', sans-serif;
            font-size: 24px;
            font-weight: 300;
        }

        details[open] summary:after {
            content: '-';
        }


        details p, details div {
            padding: 10px 20px;
            color: var(--gray-text);
            font-size: 14px;
            line-height: 1.8;
            text-align: justify;
        }
        
        details h4 {
            color: var(--black);
            margin-top: 30px;
            margin-bottom: 15px;
            font-size: 16px;
            font-weight: 700;
            font-family: 'Montserrat', sans-serif;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        details ul {
            list-style-type: disc;
            margin-left: 20px;
            margin-bottom: 20px;
            margin-top: 10px;
        }

        details li {
            margin-bottom: 8px;
            color: var(--gray-text);
            font-size: 14px;
        }


        .contact-wrapper {
            display: flex;
            gap: 80px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .contact-info, .contact-form {
            flex: 1;
        }

        .contact-info h3, .contact-form h3 {
            font-size: 32px;
            margin-bottom: 40px;
        }

        .info-item {
            margin-bottom: 30px;
        }

        .info-item h4 {
            font-size: 13px;
            font-family: 'Montserrat', sans-serif;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 8px;
            color: var(--black);
            font-weight: 700;
        }

        .info-item p {
            color: var(--gray-text);
            font-size: 16px;
        }

        .form-group {
            margin-bottom: 30px;
        }

        .form-group input, .form-group textarea {
            width: 100%;
            padding: 15px 0;
            border: none;
            border-bottom: 1px solid #ccc;
            background: transparent;
            font-family: inherit;
            font-size: 15px;
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group textarea:focus {
            border-bottom-color: var(--black);
        }


        footer {
            background-color: var(--black);
            color: var(--white);
            padding: 80px 5% 30px;
            text-align: left; 
        }

        .footer-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            max-width: 1400px;
            margin: 0 auto 60px;
        }

        .footer-col {
            flex: 1;
            min-width: 250px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 25px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
        }
        
        .footer-col h4::after {
            content: '';
            display: block;
            width: 40px;
            height: 2px;
            background-color: var(--white);
            margin-top: 10px;
            opacity: 0.3;
        }

        .footer-contact p {
            color: #aaa;
            font-size: 14px;
            margin-bottom: 15px;
            line-height: 1.6;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-nav ul {
            list-style: none;
            padding: 0;
        }
        
        .footer-nav li {
            margin-bottom: 12px;
        }

        .footer-nav a {
            color: #aaa;
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-nav a:hover {
            color: var(--white);
            padding-left: 5px;
        }

        .footer-group {
            text-align: center; 
            display: flex;
            flex-direction: column;
            align-items: center; 
            width: 100%;
        }

        .company-name-footer {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 2px;
            margin-bottom: 15px;
            color: var(--white);
            font-family: 'Playfair Display', serif;
        }

        .footer-main-logo {
            height: 85px; 
            width: auto;
            margin-bottom: 25px;
            filter: grayscale(100%) brightness(200%); 
        }

        .group-logos-container {
            display: flex;
            gap: 30px;
            justify-content: center;
            margin-top: 10px;
        }

        .group-logo {
            height: 65px;
            width: auto;
            background-color: transparent !important; 
            padding: 0 !important;
            border-radius: 4px;
            opacity: 0.8;
            transition: var(--transition);
            filter: brightness(0) invert(1);
        }

        .group-logo:hover {
            opacity: 1;
            transform: scale(1.1);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            font-size: 13px;
            color: #666;
            text-align: center;
        }


        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.85); 
            z-index: 2000; 
            display: none; 
            justify-content: center;
            align-items: center;
            padding: 20px;
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .modal-overlay.open {
            display: flex;
            opacity: 1;
        }

        .modal-content {
            background: var(--white);
            width: 100%;
            max-width: 1000px; 
            max-height: 90vh; 
            overflow-y: auto; 
            position: relative;
            padding: 50px;
            border-radius: 4px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.5);
        }

        .close-btn {
            position: absolute;
            top: 25px;
            right: 30px;
            font-size: 40px;
            cursor: pointer;
            line-height: 1;
            color: var(--black);
            transition: var(--transition);
            z-index: 10;
        }

        .close-btn:hover {
            color: #d00;
            transform: rotate(90deg);
        }

        .modal-body {
            display: flex;
            gap: 50px;
            align-items: flex-start;
        }

        .modal-img {
            width: 45%;
            height: auto;
            max-height: 70vh;
            object-fit: contain;
            border-radius: 4px;
            box-shadow: var(--shadow-card);
            filter: none !important; 
            cursor:zoom-in;
            background-color: var(--gray-bg);
        }

        .modal-text {
            width: 55%;
        }

        .modal-title {
            font-size: 36px;
            margin-bottom: 20px;
            font-family: 'Playfair Display', serif;
            border-bottom: 1px solid #eee;
            padding-bottom: 20px;
        }

        .modal-desc {
            font-size: 16px;
            color: var(--gray-text);
            line-height: 1.9;
            text-align: justify;
        }

        @media (max-width: 768px) {
            header { padding: 20px 5%; }
            .logo img { height: 45px; }
            .nav-wrapper { gap: 20px; }
            .hamburger { display: block; }
            
            nav ul {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--white);
                flex-direction: column;
                gap: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            }
            
            nav ul.show {
                max-height: 500px;
                border-top: 1px solid #eee;
            }
            
            nav ul li {
                text-align: center;
                width: 100%;
                border-bottom: 1px solid #f9f9f9;
            }
            
            nav a {
                display: block;
                padding: 20px;
                color: var(--black) !important;
            }
            
            .hero-content h1 { font-size: 42px; }
            

            .about-wrapper, .contact-wrapper, .docs-grid {
                flex-direction: column;
                grid-template-columns: 1fr; 
            }
            
            .about-image {
                max-width: 100%;
                flex: none;
                width: 100%;
                height: 300px;
            }
            

            .footer-wrapper {
                flex-direction: column;
                text-align: center;
            }
            
            .footer-col h4::after {
                margin: 10px auto 0; 
            }

            .footer-group, .group-logos-container {
                align-items: center;
                justify-content: center;
                text-align: center;
            }
            
            .modal-content { padding: 25px; }
            .modal-body { flex-direction: column; gap: 25px; }
            .modal-img { width: 100%; height: 250px; }
            .modal-text { width: 100%; }
            .modal-title { font-size: 24px; }
        }