/* Genel Ayarlar */
body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(to right, #e0f7fa, #ffffff);
    color: #333;
}

/* Welcome Container */
.welcome-container {
    text-align: center;
    padding: 80px 20px;
    background-color: #ffffffcc;
    max-width: 900px;
    margin: auto;
    border-radius: 20px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

    .welcome-container h1 {
        font-size: 3em;
        color: #00796b;
        margin-bottom: 20px;
    }

    .welcome-container p {
        font-size: 1.2em;
        line-height: 1.7;
        margin-bottom: 30px;
    }

    .welcome-container button {
        font-size: 1.1em;
        padding: 15px 30px;
        border: none;
        border-radius: 8px;
        background-color: #00796b;
        color: white;
        cursor: pointer;
        transition: background 0.3s ease;
    }

        .welcome-container button:hover {
            background-color: #004d40;
        }

/* Modal Ayarları */
.modal-overlay {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
    padding: 40px 10px;
}

.modal-content {
    background-color: #fff;
    margin: auto;
    padding: 30px;
    border-radius: 15px;
    max-width: 600px;
    position: relative;
    box-shadow: 0 0 30px rgba(0,0,0,0.2);
}

/* Kapatma butonu */
.close-button {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
}

    .close-button:hover {
        color: #000;
    }

/* Form Alanı */
.form-group {
    margin-bottom: 20px;
}

    .form-group label {
        font-weight: bold;
        display: block;
        margin-bottom: 6px;
    }

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1em;
}

.btn-success {
    background-color: #388e3c;
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1em;
    transition: background 0.3s ease;
}

    .btn-success:hover {
        background-color: #2e7d32;
    }

/* Responsive Ayarlar */
@media (max-width: 768px) {
    .modal-content {
        max-width: 95%;
        padding: 20px;
    }

    .welcome-container h1 {
        font-size: 2em;
    }

    .welcome-container p {
        font-size: 1em;
    }

    .btn {
        padding: 10px 20px;
        font-size: 1em;
    }
}