:root{
  --text: #1a1a1a;
  --main: #1c2331;
  --button : #3d7cff;
  --backgound : #f4f6f8;
  --sub_border : #EBEBEB;
  --background_border : #DBDBDB;
}
body{
  color: var(--text);
  font-size: 16px;
  line-height: 16px;
  padding: 0px;
  margin: 0;
}

.container{
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.page{
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.main_header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--main);
  height: 64px;
  display: flex;
  align-items: center;
  color: white;
  z-index: 2;
}

.main_header > .header_contents{
  display: flex;
  justify-content: space-between;
}

.user_main{
  position: relative;
  flex: 1;
  background: url('/images/background/main_background.webp');
  background-size: cover;
}

.user_sub{
  position: relative;
  flex: 1;
  background-color: var(--backgound);
}

footer{
  height: 100px;
  width: 100%;
  background-color: var(--main);
  position: relative;
  margin-top: auto;
  z-index: 2;
}

.main_contents{
  width: 100%;
  display: grid;
  margin-top: 64px;
  padding-top: 15vh;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: auto 350px;
}

.welcom_box{
  grid-column: 1/6;
  grid-row: 1/2;
  color: white;
}

.welcom_box > p {
  margin-bottom: 1rem;
}

.wel_company{
  font-size: 2.5rem;
  height: 2.5rem;
}

.wel_title{
  font-size: 4rem;
  height: 2rem;
  font-weight: 600;
}

.wel_text{
  font-size: 1rem;
  height: 1rem;
}

.text_shadow{
  text-shadow: 3px 3px 4px rgba(0, 0, 0, 30%);
}

.user_box{
  grid-column: 9/13;
  grid-row: 1/3;
  background-color: rgba(0, 0, 0, 70%);
  border-radius: 8px;
  padding: 16px;
  color: rgb(210, 210, 210);
}

.note_box{
  grid-column: 1/6;
  grid-row: 2/3;
  background-color: rgba(0, 0, 0, 70%);
  border-radius: 8px;
  margin-top: 100px;
  color: rgb(210, 210, 210);
  padding: 1rem;
}

.bottom_line{
  margin-top: 5px;
  border-bottom: rgb(210, 210, 210) 1px solid;
}

.big_txt{
  font-size: 2rem;
  font-weight: 200;
  margin:10px 0 10px 0;
}

.small_txt{
  font-size: 1rem;
  font-weight: 100;
  margin: 10px 0 10px 0;
}

.footer_main{
  display: flex;
  height: 100%;
  justify-content: space-between;
  align-items: center;
  color: #666;
  font-size: 0.8rem;
}