* {
  box-sizing: border-box;
  font-size: 20px;
}

html, body {
  padding: 0;
  margin: 0;
  font-size: 20px;
  font-family: Arial, Helvetica, sans-serif;
}

html {
  width: 100%;
  height: 100%;
}

body {
  width: 100%;
  min-height: 100%;
  background: #6ee4d5;
  color: #ffffff;
}

.hidden {
  display: none;
}

.w100 {
  width: 100%;
}

.h100 {
  height: 100%;
}

.centered {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  max-width: 600px;
  width: 90%;
}
.centered.bg {
  padding: 20px;
  background: white;
  color: black;
  border-radius: 10px;
}

.text-left {
  text-align: left;
}

.p20 {
  padding: 20px;
}

.flex {
  display: flex;
  align-items: center;
}
.flex.flex-align-stretch {
  align-items: stretch;
}
.flex.flex-align-center {
  align-items: center;
}
.flex.flex-justify-end {
  justify-content: end;
}
.flex.flex-justify-center {
  justify-content: center;
}
.flex .flex-min-content {
  flex: 0 0 auto;
}
.flex.flex-wrap {
  flex-wrap: wrap;
}
.flex.gap-20 {
  gap: 20px;
}

.form-group {
  margin: 15px 0;
}
.form-group label {
  display: block;
  margin-bottom: 10px;
}
.form-group label.inline {
  display: inline-block;
}

.form-control {
  width: 100%;
  padding: 5px 10px;
  border: 1px solid #000000;
  border-radius: 10px;
}

.input-prefix {
  display: flex;
  align-items: stretch;
}
.input-prefix .prefix {
  color: #000000;
  padding: 5px 10px;
  background: #ffffff;
  border: 1px solid #000000;
  border-bottom-left-radius: 10px;
  border-top-left-radius: 10px;
}
.input-prefix .form-control {
  border-radius: 0 10px 10px 0;
}

.btn {
  padding: 10px 20px;
  border: 1px solid #6ee4d5;
  background: #61aba3;
  color: #ffffff;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
}

.cover {
  display: none;
  position: fixed;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 10;
  text-align: center;
}
.cover .modal {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #ffffff;
  color: #000000;
  padding: 30px;
  border-radius: 10px;
  max-width: 600px;
  width: 90%;
}

.member {
  color: #02b404;
  font-weight: bold;
  font-size: 30px;
}

.notmember {
  color: #e00505;
  font-weight: bold;
  font-size: 30px;
}

.alert, .success {
  background: #f5bfbf;
  color: #e00505;
  padding: 20px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 20px;
  border-radius: 10px;
}

.success {
  background: #bdf8b4;
  color: #02b404;
}

.menu {
  position: absolute;
  top: 20px;
  right: 20px;
}