/* Genel Reset ve Font Ayarları */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: #f4f7f6;
            color: #333;
            line-height: 1.6;
        }

        /* Navigasyon Çubuğu Tasarımı */
        .navbar {
            background-color: #2c3e50;
            display: flex;
            justify-content: space-between;
            align-items: center;
            /*Menü çubuğu alt üst sağ ve sol boşluk*/
            padding: 5px 30px;
            position: relative;
            color: #fff;

        }

        .logo {
            margin-top: 10px;
        }

        /* Menü Link Listesi */
        .nav-links {
            display: flex;
            list-style: none;
            align-items: center;
        }

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            display: block;
            color: #fff;
            text-decoration: none;
            padding: 10px 20px;
            transition: background 0.3s;
        }

        .nav-links a:hover {
            background-color: #34495e;
            border-radius: 4px;
        }

        /* Masaüstü Açılır Menü (Dropdown) */
        .dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            background-color: #fff;
            min-width: 250px;
            /* Masaüstü Açılır Menü genişliği */
            box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.1);
            list-style: none;
            z-index: 1000;
            border-radius: 4px;
        }

        .dropdown-menu a {
            color: #333;
            padding: 12px 20px;
        }

        .dropdown-menu a:hover {
            background-color: #f1f1f1;
            color: #2c3e50;
        }

        /* Masaüstünde Fare Üzerine Gelince Açılma */
        @media (min-width: 769px) {
            .dropdown:hover .dropdown-menu {
                display: block;
            }
        }

        /* Mobil Menü Butonu (Hamburger Simgesi) */
        .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }

        .menu-toggle .bar {
            width: 25px;
            height: 3px;
            background-color: #fff;
            transition: 0.3s;
        }

        .banner-container {
            width: 100%;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .banner-container img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 0 auto;
        }

        /* 1. KURAL: Masaüstündeyken MOBİL banner'ı kesinlikle GİZLE, masaüstünü GÖSTER */
        .banner-mobile {
            display: none !important;
        }

        .banner-desktop {
            display: block !important;
        }

        /* 2. KURAL: Sadece ekran 768px ve altına düştüğünde (MOBİLDE) tetiklenir */
        @media (max-width: 768px) {

            /* Mobilde MASAÜSTÜ banner'ı GİZLE */
            .banner-desktop {
                display: none !important;
            }

            /* Mobilde MOBİL banner'ı GÖSTER */
            .banner-mobile {
                display: block !important;
            }
        }

        /* İçerik Alanı */
        .container {
            max-width: 1200px;
            /* Dış boşluk */
            margin: 10px auto;
            /* İç boşluk*/
            padding: 0 10px;

            text-align: center;
        }

        .container h1 {
            margin-bottom: 20px;
            color: #2c3e50;
        }

        /* MOBİL UYUMLULUK (Responsive) AYARLARI */
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                /* Varsayılan olarak mobilde gizli */
                flex-direction: column;
                width: 100%;
                position: absolute;
                top: 100%;
                left: 0;
                background-color: #2c3e50;
                padding: 10px 0;
                box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
            }

            .nav-links.active {
                display: flex;
                /* Hamburger butonuna basılınca açılır */
            }

            .nav-links li {
                width: 100%;
                text-align: left;
            }

            .nav-links a {
                padding: 15px 30px;
            }

            /* Mobilde Açılır Menü Ayarı */
            .dropdown-menu {
                position: static;
                background-color: #34495e;
                box-shadow: none;
                width: 100%;
                padding-left: 20px;
            }

            .dropdown-menu a {
                color: #fff;
            }

            /* Mobilde Dropdown sınıfı tıklandığında alt menüyü göster */
            .dropdown.active .dropdown-menu {
                display: block;
            }
        }

        /* ana sayfa kartlar */
        .hero {
            text-align: center;
            padding: 20px 20px;
            background: #e8f0fe;
        }

        .hero h1 {
            margin-bottom: 15px;
        }

        .hero p {
            margin-top: 0;
            font-size: 16px;
        }

        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            padding: 20px;
        }

        .card {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            padding: 20px;
            text-align: center;
        }

        .card h3 {
            margin-top: 0;
            font-size: 24px;
        }

        .card p {
            margin-top: 0;
            font-size: 16px;
        }

        footer {
            text-align: center;
            padding: 20px;
            background: #004aad;
            color: white;
            margin-top: 20px;
        }

        button {
            background-color: #004aad;
            color: white;
            padding: 12px 24px;
            font-size: 16px;
            font-weight: bold;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            transition: background 0.2s, transform 0.1s;
        }

        button:hover {
            background-color: #013f91;
        }

        .yazdir-butonu {
            background-color: #28a745;
            color: white;
            padding: 12px 24px;
            font-size: 16px;
            font-weight: bold;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            transition: background 0.2s, transform 0.1s;
        }

        /* Fareyle üzerine gelince */
        .yazdir-butonu:hover {
            background-color: #218838;
        }

        /* Butona tıklama anı */
        .yazdir-butonu:active {
            transform: scale(0.98);
        }


        /*teoges******************************************/
        div.teoges input {
            border: 1px solid #AAA;
            width: 5em;
            height: 1.5em;
            font-family: Arial, Helvetica, sans-serif;
            font-size: 13px;
            text-align: center;
            box-shadow: 0px 0px 5px #CCC;
        }

        /*YAZI SİTİLLERİ ----------------------------*/
        .stil1 {
            font-size: 10px;
            font-weight: bold;
            color: #D7D7D7;
        }

        .sitil2 {
            font-size: 11px;
            font-weight: bold;
        }

        .style3 {
            font-weight: bold;
            color: #000000
        }

        .style4 {
            font-weight: bold
        }

        .style5 {
            color: #FF0000
        }

        .style6 {
            color: #FFFFFF
        }

        .style7 {
            font-size: 24px
        }

        .style8 {
            font-size: 16px;
            color: #0033CC;
        }

        .style9 {
            font-size: 20px
        }

        .style10 {
            color: #F4F4F4
        }

        .style11 a {
            font-size: 13px;
            color: #000000;
            text-decoration: none
        }

        .style11 a:hover {
            color: #0000ff;
            text-decoration: none;
            font-size: 13px;
        }