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

html {
    background: url(index.jpg) no-repeat top center fixed;
    -webkit-background-size: 100% 100%;
    -moz-background-size: 100% 100%;
    -o-background-size: 100% 100%;
    background-size: 100% 100%;
}

body {
    font-family: Arial, sans-serif;
    direction: rtl;
    overflow: hidden;
}

.container {
    width: 100vw;
    height: 100vh;
    position: relative;
}

.form-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.input-group {
    display: block;
}

#investment-form {
    position: relative;
    width: 100%;
    height: 100%;
}

.form-input {
    background: #fff;
    border: none;
    border-radius: 25px;
    padding: 15px 25px;
    font-size: 16px;
    text-align: center;
    direction: rtl;
    outline: none;
    transition: all 0.3s ease;
    position: absolute;
    color: #333;
}


.top-field {
    top: 49%;
    left: 31%;
    transform: translate(-50%, -50%);
    width: 19%;
    height: 60px;
    border: 4px solid;
    border-color: #ebbd82;
}

.bottom-field {
    top: 62%;
    left: 31%;
    transform: translate(-50%, -50%);
    width: 17%;
    height: 50px;
    border: 4px solid;
    border-color: #cc191e;
}

.submit-btn {
    position: absolute;
    top: 71%;
    left: 31%;
    width: 190px;
    transform: translate(-50%, -50%);
    background: #450302;
    color: transparent;
    opacity: 0.1;
    border: none;
    border-radius: 25px;
    padding: 12px 40px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    direction: rtl;
}

.submit-btn:hover {
    background: rgba(139, 69, 19, 1);
    transform: translate(-50%, -50%) scale(1.05);
}

/* Responsive design */
@media (max-width: 768px) {
    .top-field,
    .bottom-field {
        width: 250px;
        font-size: 14px;
        padding: 12px 20px;
    }
    
    .submit-btn {
        padding: 12px 30px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .top-field,
    .bottom-field {
        width: 200px;
        font-size: 12px;
        padding: 10px 15px;
    }
    
    .submit-btn {
        padding: 10px 25px;
        font-size: 14px;
    }
}