* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: #19232d;
  background: #f4f7f6;
  font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.login-panel {
  width: min(420px, 100%);
  padding: 28px;
  background: #ffffff;
  border: 1px solid #d8e0dc;
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(25, 35, 45, 0.08);
}

.brand__name {
  margin: 0 0 8px;
  color: #0d7d62;
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 0 0 24px;
  font-size: 24px;
  line-height: 1.3;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
}

.tabs__button,
.auth-submit {
  min-height: 42px;
  border: 1px solid #cbd7d2;
  border-radius: 6px;
  background: #ffffff;
  color: #19232d;
  font-size: 15px;
  cursor: pointer;
}

.tabs__button.is-active,
.auth-submit {
  border-color: #0d7d62;
  background: #0d7d62;
  color: #ffffff;
}

.auth-form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  font-size: 14px;
  color: #34453f;
}

input {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid #cbd7d2;
  border-radius: 6px;
  font-size: 15px;
}

input:focus {
  outline: 2px solid rgba(13, 125, 98, 0.2);
  border-color: #0d7d62;
}

.auth-message {
  min-height: 20px;
  margin: 0;
  color: #b42318;
  font-size: 14px;
}

.is-hidden {
  display: none;
}