/* Deter copying and keep the protected document hidden before authentication. */
html.hydrology-locked body {
  overflow: hidden !important;
}

html.hydrology-locked body > :not(#hydrology-access-gate) {
  visibility: hidden !important;
}

body,
body * {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

#hydrology-access-gate {
  align-items: center;
  background: linear-gradient(145deg, #eef6f8, #dcecf2);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 1.5rem;
  position: fixed;
  visibility: visible !important;
  z-index: 2147483647;
}

.hydrology-login-card {
  background: #fff;
  border-radius: 0.75rem;
  box-shadow: 0 1rem 3rem rgba(0, 40, 55, 0.18);
  color: #24343a;
  font-family: Lato, Arial, sans-serif;
  max-width: 28rem;
  padding: 2rem;
  width: 100%;
}

.hydrology-login-card h1 {
  color: #19647e;
  font-size: 1.65rem;
  margin: 0 0 0.6rem;
}

.hydrology-login-card p {
  line-height: 1.5;
  margin: 0 0 1.25rem;
}

.hydrology-login-card label {
  display: block;
  font-weight: 700;
  margin: 0.9rem 0 0.3rem;
}

.hydrology-login-card input {
  border: 1px solid #9aadb4;
  border-radius: 0.3rem;
  box-sizing: border-box;
  font: inherit;
  padding: 0.65rem 0.75rem;
  user-select: text;
  width: 100%;
}

.hydrology-login-card button {
  background: #19647e;
  border: 0;
  border-radius: 0.3rem;
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  margin-top: 1.25rem;
  padding: 0.7rem 1rem;
  width: 100%;
}

.hydrology-login-card button:hover,
.hydrology-login-card button:focus {
  background: #104b60;
}

#hydrology-login-error {
  color: #a11a1a;
  font-weight: 700;
  margin: 0.8rem 0 0;
  min-height: 1.5em;
}

.hydrology-course-link {
  display: block;
  font-size: 0.9rem;
  margin-top: 1rem;
  text-align: center;
}

@media print {
  body > * {
    display: none !important;
  }

  body::before {
    content: "Printing is disabled for these course notes.";
    display: block;
    font: 18px Arial, sans-serif;
    padding: 2rem;
  }
}