:root {
  --page-width: 480px;
  --accent: #00505b;
  --error: #c92a2a;
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background: #fff;
  font-family: Arial, Helvetica, sans-serif;
}

.login-page {
  position: relative;
  width: 100%;
  max-width: var(--page-width);
  height: 100vh;
  height: 100dvh;
  margin: 0 auto;
  overflow: hidden;
  background: #fff url('immagini/sfondo.png') center center / cover no-repeat;
  box-shadow: 0 0 30px rgb(24 52 59 / 10%);
}

.login-form {
  position: absolute;
  top: 30%;
  left: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 7px;
  width: 100%;
  padding: 0 12px;
  transform: translateY(-50%);
}

.login-form input,
.login-form button {
  height: 34px;
  border-radius: 5px;
  font-size: 14px;
  font-weight: 600;
}

.login-form input {
  min-width: 0;
  padding: 0 10px;
  border: 1px solid #b8c6c9;
  outline: none;
  background: rgb(255 255 255 / 92%);
  color: #15252b;
}

.login-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(0 80 91 / 18%);
}

.login-form button {
  padding: 0 17px;
  border: 0;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

.login-error {
  grid-column: 1 / -1;
  margin: 0;
  padding: 6px 8px;
  border-radius: 5px;
  background: rgb(255 255 255 / 92%);
  color: var(--error);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}

@media (max-width: 480px) {
  html { -webkit-text-size-adjust: 100%; }
  .login-page { box-shadow: none; }
  .login-form input { font-size: 16px; touch-action: manipulation; }
}