:root {
    --primary-color: #4CAF50; 
    --primary-color-dark: #367c39; 
    --primary-color-light: rgba(47, 133, 90, 0.15); 
    --border-color: #dcdfe6;
    --text-color: #2d3748; 
    --label-color: #4a5568;
    --bg-color: #f7fafc; 
    --form-bg-color: #ffffff;
}


*, *::before, *::after {
    box-sizing: border-box;
}


body {
    background-color: var(--bg-color);
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}




.form-container {
    background-color: var(--form-bg-color);
    padding: 40px 50px;
    border-radius: 12px;
    max-width: 800px; 
    margin: 50px auto;  
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.form-title h1 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-color);
    font-size: 28px;
    font-weight: 600;
}




.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block; 
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 15px;
    color: var(--label-color);
}


.required-asterisk {
    color: #e53e3e;
    margin-left: 2px;
}




input[type="text"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    background-color: #fff;
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}


input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus, 
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-color-light);
}


::placeholder {
    color: #a0aec0;
}


select {
    appearance: none; 
    -webkit-appearance: none; 
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a0aec0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 20px;
    cursor: pointer;
}

textarea {
    resize: vertical; 
    min-height: 120px; 
}




.radio-group {
    display: flex;
    align-items: center;
    gap: 20px;
}

.radio-group input[type="radio"] {
    opacity: 0; 
    position: absolute;
    width: 0;
}

.radio-group label.form-label {
    display: inline-flex;
    align-items: center;
    position: relative;
    cursor: pointer;
    font-weight: 500;
    margin-bottom: 0;
    padding-left: 30px;
}


.radio-group label.form-label::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    transition: all 0.2s ease;
}


.radio-group input[type="radio"]:checked + label.form-label::before {
    border-color: var(--primary-color);
}


.radio-group label.form-label::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%) scale(0);
    width: 10px;
    height: 10px;
    background-color: var(--primary-color);
    border-radius: 50%;
    transition: transform 0.2s ease;
}


.radio-group input[type="radio"]:checked + label.form-label::after {
    transform: translateY(-50%) scale(1);
}



.submit-button {
    width: 100%;
    padding: 15px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.submit-button:hover {
     background-color: var(--primary-color-dark); 
     transform: translateY(-2px);
     box-shadow: 0 7px 14px rgba(47, 133, 90, 0.25); 
}

.submit-button:active {
    transform: translateY(0);
}