body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f4f4;
            color: #333;
        }

        .header {
            background: linear-gradient(135deg, #f5f7fa, #ffffff);
            border-bottom: 3px solid #d1d5db;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);

        }

        .header-container {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            padding: 40px 30px;
            transition: background-color 0.4s ease, transform 0.4s ease, box-shadow 0.5s ease;
            border-radius: 8px;
        }

        .header-container:hover {
            background-color: #f9f9f9;
            /* subtle highlight */
            transform: scale(1.02);
            /* slight zoom */
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            /* stronger shadow on hover */
        }


        .header h1 {
            margin: 0;
            font-size: 2.2em;
            font-weight: 600;
            letter-spacing: 1px;
            color: #000000;
        }

        .header p {
            margin: 8px 0;
            font-size: 1.1em;
            color: #000000;
        }

        .social-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            /* ikonlar arası boşluk */
            margin-top: 10px;
            flex-wrap: wrap;
            /* ekran küçülünce alt alta geçer */
        }

        .social-links a {
            text-decoration: none;
            color: #000;
            font-weight: 500;
            display: flex;
            align-items: center;
            transition: color 0.3s ease;
        }

        .social-links a:hover {
            color: #0077b5;
            /* hover efekti  */
        }

        a[href^="mailto:"] {
            text-decoration: none;
            color: #000;
            transition: color 0.3s ease;
        }

        a[href^="mailto:"]:hover {
            color: #0077b5;
            /* hover sırasında renk değişimi */
        }


        .logoSocial {
            width: 24px;
            height: 24px;
            object-fit: contain;
            margin-right: 8px;
        }

        /* beceriler css */
        .skills {
            background: #f9f9f9;
            padding: 20px;
            border-radius: 8px;
            font-family: "Segoe UI", sans-serif;
        }

        .skills h2 {
            border-bottom: 2px solid #0078d7;
            padding-bottom: 5px;
            margin-bottom: 15px;
            color: #0078d7;
        }

        .skill-group {
            margin-bottom: 15px;
        }

        .skill-group h3 {
            font-size: 1rem;
            color: #333;
            margin-bottom: 5px;
        }

        .skill-group ul {
            list-style: none;
            padding-left: 10px;
        }

        .skill-group li {
            margin: 3px 0;
            padding-left: 15px;
            position: relative;
        }

        .skill-group li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: #0078d7;
        }

        /*beceriler css son */

        .left-column {
            width: 40%;
            background: #f9f9f9;
            padding: 15px;
            border-right: 2px solid #ddd;
        }

        .right-column {
            width: 60%;
            padding: 15px;
        }

        .section {
            margin-bottom: 20px;
            padding: 20px;
            border-radius: 8px;
            transition: background-color 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
            background-color: #fff;
            /* clean card look */
            font-family: "Segoe UI", Arial, sans-serif;
        }

        .section:hover {
            background-color: #f9f9f9;
            /* subtle highlight */
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            /* depth effect */
            transform: translateY(-3px);
            /* slight lift instead of zoom */
        }

        .section h2 {
            border-bottom: 1px solid #160707;
            padding-bottom: 5px;
            margin-bottom: 10px;
        }

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

        .section ul li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
        }

        .logo {
            width: 24px;
            /* header ikonları için küçük boyut */
            height: 24px;
            object-fit: contain;
            vertical-align: middle;
            margin-right: 8px;
        }

        .logoBilgi {
            width: 32px;
            /* header ikonları için küçük boyut */
            height: 32px;
            object-fit: contain;
            vertical-align: middle;
            margin-right: 8px;
        }

        .logoZetas {
            width: 50px;
            /* header ikonları için küçük boyut */
            height: 32px;
            object-fit: contain;
            vertical-align: middle;
            margin-right: 8px;
        }

        .logoern {
            width: 40px;
            /* header ikonları için küçük boyut */
            height: 32px;
            object-fit: contain;
            vertical-align: middle;
            margin-right: 8px;
        }

        .logoZmakina {
            width: 60px;
            /* header ikonları için küçük boyut */
            height: 32px;
            object-fit: contain;
            vertical-align: middle;
            margin-right: 8px;
        }

        /* Deneyim bölümü için flexbox */
        .experience {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .item {
            display: flex;
            align-items: center;
            padding: 8px;
            border-radius: 6px;
            transition: background-color 0.6s ease, transform 0.4s ease;
            cursor: pointer;
            font-family: "Segoe UI", Arial, sans-serif;
        }

        .item:hover {
            background-color: #f0f8ff;
            /* light highlight */
            transform: scale(1.03);
            /* subtle zoom */
        }


        /* Show tasks when hovering over the item */
        .item:hover+.tasks {
            display: block;
            background-color: #fafafa;
            border-left: 3px solid #909192;
            padding-left: 10px;
            border-radius: 4px;
        }

        .tasks {
            margin-left: 52px;
            /* logo + boşluk kadar içeri kaydırır */
            margin-top: -10px;
            /* üstten biraz boşluk bırakır */
            transition: all 0.5s ease;
            font-family: "Segoe UI", Arial, sans-serif;
        }

        .org-link {
            text-decoration: none;
            color: inherit;
            /* yazı rengini korur */
            display: flex;
            align-items: center;
            transition: color 0.3s ease;
        }

        .org-link:hover {
            color: #0077b5;
            /* hover sırasında renk değişimi */
        }


        .footer {
            text-align: center;
            margin-top: 30px;
            font-size: 0.9em;
            color: #777;
        }

        .job-title {
            margin-top: -8px;
            /* Yukarıya biraz yaklaştırır, değeri ihtiyacına göre ayarla */
            font-style: italic;
            /* İtalik yapar */
        }

        .tasks ul {
            margin: 0;
            padding-left: 20px;
        }

        .profile-photo {
            width: 120px;
            /* fotoğraf boyutu */
            height: 120px;
            border-radius: 50%;
            /* yuvarlak görünüm */
            object-fit: cover;
            /* fotoğrafı kırpmadan ortalar */
            margin-bottom: 10px;
        }

        .container {
            display: flex;
            width: 90%;
            max-width: 1000px;
            /* maksimum genişlik sınırı */
            margin: 20px auto;
            background: #fff;
            padding: 20px;
            gap: 20px;
        }

        .about {
            background:#f9f9f9;
            padding: 20px;
            font-family: "Segoe UI", sans-serif;
            line-height: 1.6;
        }

        .about h2 {
            border-bottom: 2px solid #0078d7;
            padding-bottom: 5px;
            margin-bottom: 20px;
            color: #0078d7;
        }

        .about-block {
            margin-bottom: 20px;
        }

        .about-block h3 {
            font-size: 1.1rem;
            color: #333;
            margin-bottom: 8px;
        }

        .about-block p {
            margin: 0;
            color: #555;
        }

        .section h2 {
            margin-bottom: 18px;
            font-size: 20px;
            border-bottom: 2px solid #ddd;
            padding-bottom: 6px;
            color: #111;
        }


        /* Küçük ekranlar için */
        @media (max-width: 950px) {
            .container {
                flex-direction: column;
                max-width: 95%;
                /* mobilde daha esnek */
            }

            .left-column,
            .right-column {
                width: 100%;
            }
        }